Document Windows command line usage

BUILD.md

@@ -254,10 +254,10 @@ You can then [run](README.md#run) _scrcpy_.
 
 ## Prebuilt server
 
- - [`scrcpy-server-v1.17`][direct-scrcpy-server]  
-   _(SHA-256: 11b5ad2d1bc9b9730fb7254a78efd71a8ff46b1938ff468e47a21b653a1b6725_
+ - [`scrcpy-server-v1.16`][direct-scrcpy-server]  
+   _(SHA-256: 94a79e05b4498d0460ab7bd9d12cbf05156e3a47bf0c5d1420cee1d4493b3832)_
 
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.17/scrcpy-server-v1.17
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.16/scrcpy-server-v1.16
 
 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:

FAQ.md

@@ -233,7 +233,4 @@ scrcpy --prefer-text --turn-screen-off --stay-awake
 
 Then just double-click on that file.
 
-You could also edit (a copy of) `scrcpy-console.bat` or `scrcpy-noconsole.vbs`
-to add some arguments.
-
 [show file extensions]: https://www.howtogeek.com/205086/beginner-how-to-make-windows-show-file-extensions/

LICENSE

@@ -188,7 +188,7 @@
       identification within third-party archives.
 
    Copyright (C) 2018 Genymobile
-   Copyright (C) 2018-2021 Romain Vimont
+   Copyright (C) 2018-2020 Romain Vimont
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

Makefile.CrossWindows

@@ -9,20 +9,21 @@
 # the server to the device.
 
 .PHONY: default clean \
-	test \
 	build-server \
 	prepare-deps-win32 prepare-deps-win64 \
-	build-win32 build-win64 \
+	build-win32 build-win32-noconsole \
+	build-win64 build-win64-noconsole \
 	dist-win32 dist-win64 \
 	zip-win32 zip-win64 \
-	release
+	sums release
 
 GRADLE ?= ./gradlew
 
-TEST_BUILD_DIR := build-test
 SERVER_BUILD_DIR := build-server
 WIN32_BUILD_DIR := build-win32
+WIN32_NOCONSOLE_BUILD_DIR := build-win32-noconsole
 WIN64_BUILD_DIR := build-win64
+WIN64_NOCONSOLE_BUILD_DIR := build-win64-noconsole
 
 DIST := dist
 WIN32_TARGET_DIR := scrcpy-win32
@@ -32,35 +33,19 @@ VERSION := $(shell git describe --tags --always)
 WIN32_TARGET := $(WIN32_TARGET_DIR)-$(VERSION).zip
 WIN64_TARGET := $(WIN64_TARGET_DIR)-$(VERSION).zip
 
-RELEASE_DIR := release-$(VERSION)
-
-release: clean test build-server zip-win32 zip-win64
-	mkdir -p "$(RELEASE_DIR)"
-	cp "$(SERVER_BUILD_DIR)/server/scrcpy-server" \
-		"$(RELEASE_DIR)/scrcpy-server-$(VERSION)"
-	cp "$(DIST)/$(WIN32_TARGET)" "$(RELEASE_DIR)"
-	cp "$(DIST)/$(WIN64_TARGET)" "$(RELEASE_DIR)"
-	cd "$(RELEASE_DIR)" && \
-		sha256sum "scrcpy-server-$(VERSION)" \
-			"scrcpy-win32-$(VERSION).zip" \
-			"scrcpy-win64-$(VERSION).zip" > SHA256SUMS.txt
-	@echo "Release generated in $(RELEASE_DIR)/"
+release: clean zip-win32 zip-win64 sums
+	@echo "Windows archives generated in $(DIST)/"
 
 clean:
 	$(GRADLE) clean
-	rm -rf "$(DIST)" "$(TEST_BUILD_DIR)" "$(SERVER_BUILD_DIR)" \
-		"$(WIN32_BUILD_DIR)" "$(WIN64_BUILD_DIR)"
-
-test:
-	[ -d "$(TEST_BUILD_DIR)" ] || ( mkdir "$(TEST_BUILD_DIR)" && \
-		meson "$(TEST_BUILD_DIR)" -Db_sanitize=address )
-	ninja -C "$(TEST_BUILD_DIR)"
-	$(GRADLE) -p server check
+	rm -rf "$(SERVER_BUILD_DIR)" "$(WIN32_BUILD_DIR)" "$(WIN64_BUILD_DIR)" \
+		   "$(WIN32_NOCONSOLE_BUILD_DIR)" "$(WIN64_NOCONSOLE_BUILD_DIR)" "$(DIST)"
 
 build-server:
 	[ -d "$(SERVER_BUILD_DIR)" ] || ( mkdir "$(SERVER_BUILD_DIR)" && \
-		meson "$(SERVER_BUILD_DIR)" --buildtype release -Dcompile_app=false )
-	ninja -C "$(SERVER_BUILD_DIR)"
+		meson "$(SERVER_BUILD_DIR)" \
+			--buildtype release -Dcompile_app=false )
+		ninja -C "$(SERVER_BUILD_DIR)"
 
 prepare-deps-win32:
 	-$(MAKE) -C prebuilt-deps prepare-win32
@@ -75,6 +60,17 @@ build-win32: prepare-deps-win32
 			-Dportable=true )
 	ninja -C "$(WIN32_BUILD_DIR)"
 
+build-win32-noconsole: prepare-deps-win32
+	[ -d "$(WIN32_NOCONSOLE_BUILD_DIR)" ] || ( mkdir "$(WIN32_NOCONSOLE_BUILD_DIR)" && \
+		meson "$(WIN32_NOCONSOLE_BUILD_DIR)" \
+			--cross-file cross_win32.txt \
+			--buildtype release --strip -Db_lto=true \
+			-Dcrossbuild_windows=true \
+			-Dcompile_server=false \
+			-Dwindows_noconsole=true \
+			-Dportable=true )
+	ninja -C "$(WIN32_NOCONSOLE_BUILD_DIR)"
+
 prepare-deps-win64:
 	-$(MAKE) -C prebuilt-deps prepare-win64
 
@@ -88,12 +84,23 @@ build-win64: prepare-deps-win64
 			-Dportable=true )
 	ninja -C "$(WIN64_BUILD_DIR)"
 
-dist-win32: build-server build-win32
+build-win64-noconsole: prepare-deps-win64
+	[ -d "$(WIN64_NOCONSOLE_BUILD_DIR)" ] || ( mkdir "$(WIN64_NOCONSOLE_BUILD_DIR)" && \
+		meson "$(WIN64_NOCONSOLE_BUILD_DIR)" \
+			--cross-file cross_win64.txt \
+			--buildtype release --strip -Db_lto=true \
+			-Dcrossbuild_windows=true \
+			-Dcompile_server=false \
+			-Dwindows_noconsole=true \
+			-Dportable=true )
+	ninja -C "$(WIN64_NOCONSOLE_BUILD_DIR)"
+
+dist-win32: build-server build-win32 build-win32-noconsole
 	mkdir -p "$(DIST)/$(WIN32_TARGET_DIR)"
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp "$(WIN32_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp "$(WIN32_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/scrcpy-noconsole.exe"
 	cp data/scrcpy-console.bat "$(DIST)/$(WIN32_TARGET_DIR)"
-	cp data/scrcpy-noconsole.vbs "$(DIST)/$(WIN32_TARGET_DIR)"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
@@ -102,14 +109,14 @@ dist-win32: build-server build-win32
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.14/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.12/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 
-dist-win64: build-server build-win64
+dist-win64: build-server build-win64 build-win64-noconsole
 	mkdir -p "$(DIST)/$(WIN64_TARGET_DIR)"
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp "$(WIN64_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp "$(WIN64_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/scrcpy-noconsole.exe"
 	cp data/scrcpy-console.bat "$(DIST)/$(WIN64_TARGET_DIR)"
-	cp data/scrcpy-noconsole.vbs "$(DIST)/$(WIN64_TARGET_DIR)"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
@@ -118,7 +125,7 @@ dist-win64: build-server build-win64
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.14/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.12/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 
 zip-win32: dist-win32
 	cd "$(DIST)/$(WIN32_TARGET_DIR)"; \
@@ -127,3 +134,7 @@ zip-win32: dist-win32
 zip-win64: dist-win64
 	cd "$(DIST)/$(WIN64_TARGET_DIR)"; \
 		zip -r "../$(WIN64_TARGET)" .
+
+sums:
+	cd "$(DIST)"; \
+		sha256sum *.zip > SHA256SUMS.txt

README.id.md

@@ -675,7 +675,7 @@ Baca [halaman pengembang].
 ## Lisensi
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2020 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.ko.md

@@ -477,7 +477,7 @@ _²화면이 꺼진 상태에서 우클릭 시 다시 켜지며, 그 외의 상
 ## 라이선스
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2020 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.md

@@ -1,4 +1,4 @@
-# scrcpy (v1.17)
+# scrcpy (v1.16)
 
 [Read in another language](#translations)
 
@@ -77,10 +77,10 @@ hard).
 For Windows, for simplicity, a prebuilt archive with all the dependencies
 (including `adb`) is available:
 
- - [`scrcpy-win64-v1.17.zip`][direct-win64]  
-   _(SHA-256: 8b9e57993c707367ed10ebfe0e1ef563c7a29d9af4a355cd8b6a52a317c73eea)_
+ - [`scrcpy-win64-v1.16.zip`][direct-win64]  
+   _(SHA-256: 3f30dc5db1a2f95c2b40a0f5de91ec1642d9f53799250a8c529bc882bc0918f0)_
 
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.17/scrcpy-win64-v1.17.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.16/scrcpy-win64-v1.16.zip
 
 It is also available in [Chocolatey]:
 
@@ -116,10 +116,6 @@ brew install scrcpy
 You need `adb`, accessible from your `PATH`. If you don't have it yet:
 
 ```bash
-# Homebrew >= 2.6.0
-brew install --cask android-platform-tools
-
-# Homebrew < 2.6.0
 brew cask install android-platform-tools
 ```
 
@@ -206,8 +202,6 @@ scrcpy --lock-video-orientation 3   # 90° clockwise
 
 This affects recording orientation.
 
-The [window may also be rotated](#rotation) independently.
-
 
 #### Encoder
 
@@ -413,9 +407,9 @@ Note that _scrcpy_ manages 3 different rotations:
  - <kbd>MOD</kbd>+<kbd>r</kbd> requests the device to switch between portrait
    and landscape (the current running app may refuse, if it does support the
    requested orientation).
- - [`--lock-video-orientation`](#lock-video-orientation) changes the mirroring
-   orientation (the orientation of the video sent from the device to the
-   computer). This affects the recording.
+ - `--lock-video-orientation` changes the mirroring orientation (the orientation
+   of the video sent from the device to the computer). This affects the
+   recording.
  - `--rotation` (or <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
    rotates only the window content. This affects only the display, not the
    recording.
@@ -491,6 +485,18 @@ scrcpy -Sw
 ```
 
 
+#### Render expired frames
+
+By default, to minimize latency, _scrcpy_ always renders the last decoded frame
+available, and drops any previous one.
+
+To force the rendering of all frames (at a cost of a possible increased
+latency), use:
+
+```bash
+scrcpy --render-expired-frames
+```
+
 #### Show touches
 
 For presentations, it may be useful to show physical touches (on the physical
@@ -760,7 +766,7 @@ Read the [developers page].
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2020 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.pt-br.md

@@ -508,7 +508,7 @@ Leia a  [developers page].
 ## Licença
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2020 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.zh-Hans.md

@@ -703,7 +703,7 @@ _³需要安卓版本 Android >= 7。_
 ## 许可协议
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2020 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.zh-Hant.md

@@ -682,7 +682,7 @@ _³只支援 Android 7+。_
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2020 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

app/meson.build

@@ -1,8 +1,7 @@
 src = [
     'src/main.c',
-    'src/adb.c',
     'src/cli.c',
-    'src/compat.c',
+    'src/command.c',
     'src/control_msg.c',
     'src/controller.c',
     'src/decoder.c',
@@ -22,23 +21,9 @@ src = [
     'src/tiny_xpm.c',
     'src/video_buffer.c',
     'src/util/net.c',
-    'src/util/process.c',
-    'src/util/str_util.c',
-    'src/util/thread.c',
+    'src/util/str_util.c'
 ]
 
-if host_machine.system() == 'windows'
-    src += [ 'src/sys/win/process.c' ]
-else
-    src += [ 'src/sys/unix/process.c' ]
-endif
-
-check_functions = [
-    'strdup'
-]
-
-cc = meson.get_compiler('c')
-
 if not get_option('crossbuild_windows')
 
     # native build
@@ -52,6 +37,8 @@ if not get_option('crossbuild_windows')
 else
 
     # cross-compile mingw32 build (from Linux to Windows)
+    cc = meson.get_compiler('c')
+
     prebuilt_sdl2 = meson.get_cross_property('prebuilt_sdl2')
     sdl2_bin_dir = meson.current_source_dir() + '/../prebuilt-deps/' + prebuilt_sdl2 + '/bin'
     sdl2_lib_dir = meson.current_source_dir() + '/../prebuilt-deps/' + prebuilt_sdl2 + '/lib'
@@ -86,18 +73,19 @@ else
 
 endif
 
+cc = meson.get_compiler('c')
+
 if host_machine.system() == 'windows'
+    src += [ 'src/sys/win/command.c' ]
     dependencies += cc.find_library('ws2_32')
+else
+    src += [ 'src/sys/unix/command.c' ]
 endif
 
 conf = configuration_data()
 
-foreach f : check_functions
-  if cc.has_function(f)
-    define = 'HAVE_' + f.underscorify().to_upper()
-    conf.set(define, true)
-  endif
-endforeach
+# expose the build type
+conf.set('NDEBUG', get_option('buildtype') != 'debug')
 
 # the version, updated on release
 conf.set_quoted('SCRCPY_VERSION', meson.project_version())
@@ -114,10 +102,26 @@ conf.set('PORTABLE', get_option('portable'))
 conf.set('DEFAULT_LOCAL_PORT_RANGE_FIRST', '27183')
 conf.set('DEFAULT_LOCAL_PORT_RANGE_LAST', '27199')
 
+# the default max video size for both dimensions, in pixels
+# overridden by option --max-size
+conf.set('DEFAULT_MAX_SIZE', '0')  # 0: unlimited
+
+# the default video orientation
+# natural device orientation is 0 and each increment adds 90 degrees
+# counterclockwise
+# overridden by option --lock-video-orientation
+conf.set('DEFAULT_LOCK_VIDEO_ORIENTATION', '-1')  # -1: unlocked
+
 # the default video bitrate, in bits/second
 # overridden by option --bit-rate
 conf.set('DEFAULT_BIT_RATE', '8000000')  # 8Mbps
 
+# enable High DPI support
+conf.set('HIDPI_SUPPORT', get_option('hidpi_support'))
+
+# disable console on Windows
+conf.set('WINDOWS_NOCONSOLE', get_option('windows_noconsole'))
+
 # run a server debugger and wait for a client to be attached
 conf.set('SERVER_DEBUGGER', get_option('server_debugger'))
 
@@ -128,11 +132,18 @@ configure_file(configuration: conf, output: 'config.h')
 
 src_dir = include_directories('src')
 
+if get_option('windows_noconsole')
+    link_args = [ '-Wl,--subsystem,windows' ]
+else
+    link_args = []
+endif
+
 executable('scrcpy', src,
            dependencies: dependencies,
            include_directories: src_dir,
            install: true,
-           c_args: [])
+           c_args: [],
+           link_args: link_args)
 
 install_man('scrcpy.1')
 

app/scrcpy.1

@@ -155,6 +155,10 @@ Supported names are currently "direct3d", "opengl", "opengles2", "opengles", "me
 .UR https://wiki.libsdl.org/SDL_HINT_RENDER_DRIVER
 .UE
 
+.TP
+.B \-\-render\-expired\-frames
+By default, to minimize latency, scrcpy always renders the last available decoded frame, and drops any previous ones. This flag forces to render all frames, at a cost of a possible increased latency.
+
 .TP
 .BI "\-\-rotation " value
 Set the initial display rotation. Possibles values are 0, 1, 2 and 3. Each increment adds a 90 degrees rotation counterclockwise.

app/src/adb.h

@@ -1,34 +0,0 @@
-#ifndef SC_ADB_H
-#define SC_ADB_H
-
-#include "common.h"
-
-#include <stdbool.h>
-#include <inttypes.h>
-
-#include "util/process.h"
-
-process_t
-adb_execute(const char *serial, const char *const adb_cmd[], size_t len);
-
-process_t
-adb_forward(const char *serial, uint16_t local_port,
-            const char *device_socket_name);
-
-process_t
-adb_forward_remove(const char *serial, uint16_t local_port);
-
-process_t
-adb_reverse(const char *serial, const char *device_socket_name,
-            uint16_t local_port);
-
-process_t
-adb_reverse_remove(const char *serial, const char *device_socket_name);
-
-process_t
-adb_push(const char *serial, const char *local, const char *remote);
-
-process_t
-adb_install(const char *serial, const char *local);
-
-#endif

app/src/cli.c

@@ -6,13 +6,11 @@
 #include <stdio.h>
 #include <unistd.h>
 
+#include "config.h"
 #include "scrcpy.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
-#define STR_IMPL_(x) #x
-#define STR(x) STR_IMPL_(x)
-
 void
 scrcpy_print_usage(const char *arg0) {
     fprintf(stderr,
@@ -26,7 +24,7 @@ scrcpy_print_usage(const char *arg0) {
         "    -b, --bit-rate value\n"
         "        Encode the video at the given bit-rate, expressed in bits/s.\n"
         "        Unit suffixes are supported: 'K' (x1000) and 'M' (x1000000).\n"
-        "        Default is " STR(DEFAULT_BIT_RATE) ".\n"
+        "        Default is %d.\n"
         "\n"
         "    --codec-options key[:type]=value[,...]\n"
         "        Set a list of comma-separated key:type=value options for the\n"
@@ -84,7 +82,7 @@ scrcpy_print_usage(const char *arg0) {
         "        Possible values are -1 (unlocked), 0, 1, 2 and 3.\n"
         "        Natural device orientation is 0, and each increment adds a\n"
         "        90 degrees rotation counterclockwise.\n"
-        "        Default is -1 (unlocked).\n"
+        "        Default is %d%s.\n"
         "\n"
         "    --max-fps value\n"
         "        Limit the frame rate of screen capture (officially supported\n"
@@ -94,7 +92,7 @@ scrcpy_print_usage(const char *arg0) {
         "        Limit both the width and height of the video to value. The\n"
         "        other dimension is computed so that the device aspect-ratio\n"
         "        is preserved.\n"
-        "        Default is 0 (unlimited).\n"
+        "        Default is %d%s.\n"
         "\n"
         "    -n, --no-control\n"
         "        Disable device control (mirror the device in read-only).\n"
@@ -113,8 +111,7 @@ scrcpy_print_usage(const char *arg0) {
         "\n"
         "    -p, --port port[:port]\n"
         "        Set the TCP port (range) used by the client to listen.\n"
-        "        Default is " STR(DEFAULT_LOCAL_PORT_RANGE_FIRST) ":"
-                              STR(DEFAULT_LOCAL_PORT_RANGE_LAST) ".\n"
+        "        Default is %d:%d.\n"
         "\n"
         "    --prefer-text\n"
         "        Inject alpha characters and space as text events instead of\n"
@@ -143,6 +140,12 @@ scrcpy_print_usage(const char *arg0) {
         "        \"opengles2\", \"opengles\", \"metal\" and \"software\".\n"
         "        <https://wiki.libsdl.org/SDL_HINT_RENDER_DRIVER>\n"
         "\n"
+        "    --render-expired-frames\n"
+        "        By default, to minimize latency, scrcpy always renders the\n"
+        "        last available decoded frame, and drops any previous ones.\n"
+        "        This flag forces to render all frames, at a cost of a\n"
+        "        possible increased latency.\n"
+        "\n"
         "    --rotation value\n"
         "        Set the initial display rotation.\n"
         "        Possibles values are 0, 1, 2 and 3. Each increment adds a 90\n"
@@ -295,7 +298,12 @@ scrcpy_print_usage(const char *arg0) {
         "\n"
         "    Drag & drop APK file\n"
         "        Install APK from computer\n"
-        "\n", arg0);
+        "\n",
+        arg0,
+        DEFAULT_BIT_RATE,
+        DEFAULT_LOCK_VIDEO_ORIENTATION, DEFAULT_LOCK_VIDEO_ORIENTATION >= 0 ? "" : " (unlocked)",
+        DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
+        DEFAULT_LOCAL_PORT_RANGE_FIRST, DEFAULT_LOCAL_PORT_RANGE_LAST);
 }
 
 static bool
@@ -470,14 +478,14 @@ parse_port_range(const char *s, struct sc_port_range *port_range) {
 }
 
 static bool
-parse_display_id(const char *s, uint32_t *display_id) {
+parse_display_id(const char *s, uint16_t *display_id) {
     long value;
-    bool ok = parse_integer_arg(s, &value, false, 0, 0x7FFFFFFF, "display id");
+    bool ok = parse_integer_arg(s, &value, false, 0, 0xFFFF, "display id");
     if (!ok) {
         return false;
     }
 
-    *display_id = (uint32_t) value;
+    *display_id = (uint16_t) value;
     return true;
 }
 
@@ -660,7 +668,6 @@ guess_record_format(const char *filename) {
 #define OPT_FORWARD_ALL_CLICKS     1023
 #define OPT_LEGACY_PASTE           1024
 #define OPT_ENCODER_NAME           1025
-#define OPT_POWER_OFF_ON_CLOSE     1026
 
 bool
 scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
@@ -711,8 +718,6 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"window-height",          required_argument, NULL, OPT_WINDOW_HEIGHT},
         {"window-borderless",      no_argument,       NULL,
                                                   OPT_WINDOW_BORDERLESS},
-        {"power-off-on-close",     no_argument,       NULL,
-                                                  OPT_POWER_OFF_ON_CLOSE},
         {NULL,                     0,                 NULL, 0  },
     };
 
@@ -810,8 +815,7 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                 opts->stay_awake = true;
                 break;
             case OPT_RENDER_EXPIRED_FRAMES:
-                LOGW("Option --render-expired-frames has been removed. This "
-                     "flag has been ignored.");
+                opts->render_expired_frames = true;
                 break;
             case OPT_WINDOW_TITLE:
                 opts->window_title = optarg;
@@ -882,9 +886,6 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
             case OPT_LEGACY_PASTE:
                 opts->legacy_paste = true;
                 break;
-            case OPT_POWER_OFF_ON_CLOSE:
-                opts->power_off_on_close = true;
-                break;
             default:
                 // getopt prints the error message on stderr
                 return false;

app/src/cli.h

@@ -1,10 +1,9 @@
 #ifndef SCRCPY_CLI_H
 #define SCRCPY_CLI_H
 
-#include "common.h"
-
 #include <stdbool.h>
 
+#include "config.h"
 #include "scrcpy.h"
 
 struct scrcpy_cli_args {

app/src/command.c

@@ -1,10 +1,12 @@
-#include "adb.h"
+#include "command.h"
 
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#include "config.h"
+#include "common.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
@@ -68,7 +70,7 @@ show_adb_installation_msg() {
         {"pacman", "pacman -S android-tools"},
     };
     for (size_t i = 0; i < ARRAY_LEN(pkg_managers); ++i) {
-        if (search_executable(pkg_managers[i].binary)) {
+        if (cmd_search(pkg_managers[i].binary)) {
             LOGI("You may install 'adb' by \"%s\"", pkg_managers[i].command);
             return;
         }
@@ -116,7 +118,7 @@ adb_execute(const char *serial, const char *const adb_cmd[], size_t len) {
 
     memcpy(&cmd[i], adb_cmd, len * sizeof(const char *));
     cmd[len + i] = NULL;
-    enum process_result r = process_execute(cmd, &process);
+    enum process_result r = cmd_execute(cmd, &process);
     if (r != PROCESS_SUCCESS) {
         show_adb_err_msg(r, cmd);
         return PROCESS_NONE;
@@ -173,7 +175,7 @@ adb_push(const char *serial, const char *local, const char *remote) {
     }
     remote = strquote(remote);
     if (!remote) {
-        free((void *) local);
+        SDL_free((void *) local);
         return PROCESS_NONE;
     }
 #endif
@@ -182,8 +184,8 @@ adb_push(const char *serial, const char *local, const char *remote) {
     process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
-    free((void *) remote);
-    free((void *) local);
+    SDL_free((void *) remote);
+    SDL_free((void *) local);
 #endif
 
     return proc;
@@ -204,8 +206,26 @@ adb_install(const char *serial, const char *local) {
     process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
-    free((void *) local);
+    SDL_free((void *) local);
 #endif
 
     return proc;
 }
+
+bool
+process_check_success(process_t proc, const char *name) {
+    if (proc == PROCESS_NONE) {
+        LOGE("Could not execute \"%s\"", name);
+        return false;
+    }
+    exit_code_t exit_code;
+    if (!cmd_simple_wait(proc, &exit_code)) {
+        if (exit_code != NO_EXIT_CODE) {
+            LOGE("\"%s\" returned with value %" PRIexitcode, name, exit_code);
+        } else {
+            LOGE("\"%s\" exited unexpectedly", name);
+        }
+        return false;
+    }
+    return true;
+}

app/src/command.h

@@ -1,9 +1,8 @@
-#ifndef SC_PROCESS_H
-#define SC_PROCESS_H
-
-#include "common.h"
+#ifndef COMMAND_H
+#define COMMAND_H
 
 #include <stdbool.h>
+#include <inttypes.h>
 
 #ifdef _WIN32
 
@@ -32,45 +31,58 @@
 
 #endif
 
+#include "config.h"
+
 enum process_result {
     PROCESS_SUCCESS,
     PROCESS_ERROR_GENERIC,
     PROCESS_ERROR_MISSING_BINARY,
 };
 
-// execute the command and write the result to the output parameter "process"
-enum process_result
-process_execute(const char *const argv[], process_t *process);
-
-// kill the process
+#ifndef __WINDOWS__
 bool
-process_terminate(process_t pid);
+cmd_search(const char *file);
+#endif
 
-// wait and close the process (like waitpid())
-// the "close" flag indicates if the process must be "closed" (reaped)
-// (passing false is equivalent to enable WNOWAIT in waitid())
-exit_code_t
-process_wait(process_t pid, bool close);
+enum process_result
+cmd_execute(const char *const argv[], process_t *process);
 
-// close the process
-//
-// Semantically, process_wait(close) = process_wait(noclose) + process_close
-void
-process_close(process_t pid);
+bool
+cmd_terminate(process_t pid);
+
+bool
+cmd_simple_wait(process_t pid, exit_code_t *exit_code);
+
+process_t
+adb_execute(const char *serial, const char *const adb_cmd[], size_t len);
+
+process_t
+adb_forward(const char *serial, uint16_t local_port,
+            const char *device_socket_name);
+
+process_t
+adb_forward_remove(const char *serial, uint16_t local_port);
+
+process_t
+adb_reverse(const char *serial, const char *device_socket_name,
+            uint16_t local_port);
+
+process_t
+adb_reverse_remove(const char *serial, const char *device_socket_name);
+
+process_t
+adb_push(const char *serial, const char *local, const char *remote);
+
+process_t
+adb_install(const char *serial, const char *local);
 
 // convenience function to wait for a successful process execution
 // automatically log process errors with the provided process name
 bool
-process_check_success(process_t proc, const char *name, bool close);
-
-#ifndef _WIN32
-// only used to find package manager, not implemented for Windows
-bool
-search_executable(const char *file);
-#endif
+process_check_success(process_t proc, const char *name);
 
 // return the absolute path of the executable (the scrcpy binary)
-// may be NULL on error; to be freed by free()
+// may be NULL on error; to be freed by SDL_free
 char *
 get_executable_path(void);
 

app/src/common.h

@@ -1,14 +1,35 @@
 #ifndef COMMON_H
 #define COMMON_H
 
+#include <stdint.h>
+
 #include "config.h"
-#include "compat.h"
 
 #define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
 #define MIN(X,Y) (X) < (Y) ? (X) : (Y)
 #define MAX(X,Y) (X) > (Y) ? (X) : (Y)
 
-#define container_of(ptr, type, member) \
-    ((type *) (((char *) (ptr)) - offsetof(type, member)))
+struct size {
+    uint16_t width;
+    uint16_t height;
+};
+
+struct point {
+    int32_t x;
+    int32_t y;
+};
+
+struct position {
+    // The video screen size may be different from the real device screen size,
+    // so store to which size the absolute position apply, to scale it
+    // accordingly.
+    struct size screen_size;
+    struct point point;
+};
+
+struct port_range {
+    uint16_t first;
+    uint16_t last;
+};
 
 #endif

app/src/compat.c

@@ -1,14 +0,0 @@
-#include "compat.h"
-
-#include "config.h"
-
-#ifndef HAVE_STRDUP
-char *strdup(const char *s) {
-    size_t size = strlen(s) + 1;
-    char *dup = malloc(size);
-    if (dup) {
-        memcpy(dup, s, size);
-    }
-    return dup;
-}
-#endif

app/src/compat.h

@@ -1,16 +1,19 @@
 #ifndef COMPAT_H
 #define COMPAT_H
 
-#define _POSIX_C_SOURCE 200809L
-#define _XOPEN_SOURCE 700
-#define _GNU_SOURCE
-#ifdef __APPLE__
-# define _DARWIN_C_SOURCE
-#endif
-
 #include <libavformat/version.h>
 #include <SDL2/SDL_version.h>
 
+// In ffmpeg/doc/APIchanges:
+// 2016-04-11 - 6f69f7a / 9200514 - lavf 57.33.100 / 57.5.0 - avformat.h
+//   Add AVStream.codecpar, deprecate AVStream.codec.
+#if    (LIBAVFORMAT_VERSION_MICRO >= 100 /* FFmpeg */ && \
+        LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 33, 100)) \
+    || (LIBAVFORMAT_VERSION_MICRO < 100 && /* Libav */ \
+        LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 5, 0))
+# define SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
+#endif
+
 // In ffmpeg/doc/APIchanges:
 // 2018-02-06 - 0694d87024 - lavf 58.9.100 - avformat.h
 //   Deprecate use of av_register_input_format(), av_register_output_format(),
@@ -22,6 +25,15 @@
 # define SCRCPY_LAVF_REQUIRES_REGISTER_ALL
 #endif
 
+// In ffmpeg/doc/APIchanges:
+// 2016-04-21 - 7fc329e - lavc 57.37.100 - avcodec.h
+//   Add a new audio/video encoding and decoding API with decoupled input
+//   and output -- avcodec_send_packet(), avcodec_receive_frame(),
+//   avcodec_send_frame() and avcodec_receive_packet().
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 37, 100)
+# define SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
+#endif
+
 #if SDL_VERSION_ATLEAST(2, 0, 5)
 // <https://wiki.libsdl.org/SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH>
 # define SCRCPY_SDL_HAS_HINT_MOUSE_FOCUS_CLICKTHROUGH
@@ -36,8 +48,4 @@
 # define SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
 #endif
 
-#ifndef HAVE_STRDUP
-char *strdup(const char *s);
-#endif
-
 #endif

app/src/control_msg.c

@@ -1,9 +1,9 @@
 #include "control_msg.h"
 
 #include <assert.h>
-#include <stdlib.h>
 #include <string.h>
 
+#include "config.h"
 #include "util/buffer_util.h"
 #include "util/log.h"
 #include "util/str_util.h"
@@ -94,10 +94,10 @@ void
 control_msg_destroy(struct control_msg *msg) {
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_TEXT:
-            free(msg->inject_text.text);
+            SDL_free(msg->inject_text.text);
             break;
         case CONTROL_MSG_TYPE_SET_CLIPBOARD:
-            free(msg->set_clipboard.text);
+            SDL_free(msg->set_clipboard.text);
             break;
         default:
             // do nothing

app/src/control_msg.h

@@ -1,15 +1,14 @@
 #ifndef CONTROLMSG_H
 #define CONTROLMSG_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
+#include "config.h"
 #include "android/input.h"
 #include "android/keycodes.h"
-#include "coords.h"
+#include "common.h"
 
 #define CONTROL_MSG_MAX_SIZE (1 << 18) // 256k
 
@@ -50,7 +49,7 @@ struct control_msg {
             enum android_metastate metastate;
         } inject_keycode;
         struct {
-            char *text; // owned, to be freed by free()
+            char *text; // owned, to be freed by SDL_free()
         } inject_text;
         struct {
             enum android_motionevent_action action;
@@ -65,7 +64,7 @@ struct control_msg {
             int32_t vscroll;
         } inject_scroll_event;
         struct {
-            char *text; // owned, to be freed by free()
+            char *text; // owned, to be freed by SDL_free()
             bool paste;
         } set_clipboard;
         struct {

app/src/controller.c

@@ -2,27 +2,26 @@
 
 #include <assert.h>
 
+#include "config.h"
+#include "util/lock.h"
 #include "util/log.h"
 
 bool
 controller_init(struct controller *controller, socket_t control_socket) {
     cbuf_init(&controller->queue);
 
-    bool ok = receiver_init(&controller->receiver, control_socket);
-    if (!ok) {
+    if (!receiver_init(&controller->receiver, control_socket)) {
         return false;
     }
 
-    ok = sc_mutex_init(&controller->mutex);
-    if (!ok) {
+    if (!(controller->mutex = SDL_CreateMutex())) {
         receiver_destroy(&controller->receiver);
         return false;
     }
 
-    ok = sc_cond_init(&controller->msg_cond);
-    if (!ok) {
+    if (!(controller->msg_cond = SDL_CreateCond())) {
         receiver_destroy(&controller->receiver);
-        sc_mutex_destroy(&controller->mutex);
+        SDL_DestroyMutex(controller->mutex);
         return false;
     }
 
@@ -34,8 +33,8 @@ controller_init(struct controller *controller, socket_t control_socket) {
 
 void
 controller_destroy(struct controller *controller) {
-    sc_cond_destroy(&controller->msg_cond);
-    sc_mutex_destroy(&controller->mutex);
+    SDL_DestroyCond(controller->msg_cond);
+    SDL_DestroyMutex(controller->mutex);
 
     struct control_msg msg;
     while (cbuf_take(&controller->queue, &msg)) {
@@ -48,13 +47,13 @@ controller_destroy(struct controller *controller) {
 bool
 controller_push_msg(struct controller *controller,
                       const struct control_msg *msg) {
-    sc_mutex_lock(&controller->mutex);
+    mutex_lock(controller->mutex);
     bool was_empty = cbuf_is_empty(&controller->queue);
     bool res = cbuf_push(&controller->queue, *msg);
     if (was_empty) {
-        sc_cond_signal(&controller->msg_cond);
+        cond_signal(controller->msg_cond);
     }
-    sc_mutex_unlock(&controller->mutex);
+    mutex_unlock(controller->mutex);
     return res;
 }
 
@@ -62,12 +61,12 @@ static bool
 process_msg(struct controller *controller,
               const struct control_msg *msg) {
     static unsigned char serialized_msg[CONTROL_MSG_MAX_SIZE];
-    size_t length = control_msg_serialize(msg, serialized_msg);
+    int length = control_msg_serialize(msg, serialized_msg);
     if (!length) {
         return false;
     }
     int w = net_send_all(controller->control_socket, serialized_msg, length);
-    return (size_t) w == length;
+    return w == length;
 }
 
 static int
@@ -75,20 +74,20 @@ run_controller(void *data) {
     struct controller *controller = data;
 
     for (;;) {
-        sc_mutex_lock(&controller->mutex);
+        mutex_lock(controller->mutex);
         while (!controller->stopped && cbuf_is_empty(&controller->queue)) {
-            sc_cond_wait(&controller->msg_cond, &controller->mutex);
+            cond_wait(controller->msg_cond, controller->mutex);
         }
         if (controller->stopped) {
             // stop immediately, do not process further msgs
-            sc_mutex_unlock(&controller->mutex);
+            mutex_unlock(controller->mutex);
             break;
         }
         struct control_msg msg;
         bool non_empty = cbuf_take(&controller->queue, &msg);
         assert(non_empty);
         (void) non_empty;
-        sc_mutex_unlock(&controller->mutex);
+        mutex_unlock(controller->mutex);
 
         bool ok = process_msg(controller, &msg);
         control_msg_destroy(&msg);
@@ -104,16 +103,16 @@ bool
 controller_start(struct controller *controller) {
     LOGD("Starting controller thread");
 
-    bool ok = sc_thread_create(&controller->thread, run_controller,
-                               "controller", controller);
-    if (!ok) {
+    controller->thread = SDL_CreateThread(run_controller, "controller",
+                                          controller);
+    if (!controller->thread) {
         LOGC("Could not start controller thread");
         return false;
     }
 
     if (!receiver_start(&controller->receiver)) {
         controller_stop(controller);
-        sc_thread_join(&controller->thread, NULL);
+        SDL_WaitThread(controller->thread, NULL);
         return false;
     }
 
@@ -122,14 +121,14 @@ controller_start(struct controller *controller) {
 
 void
 controller_stop(struct controller *controller) {
-    sc_mutex_lock(&controller->mutex);
+    mutex_lock(controller->mutex);
     controller->stopped = true;
-    sc_cond_signal(&controller->msg_cond);
-    sc_mutex_unlock(&controller->mutex);
+    cond_signal(controller->msg_cond);
+    mutex_unlock(controller->mutex);
 }
 
 void
 controller_join(struct controller *controller) {
-    sc_thread_join(&controller->thread, NULL);
+    SDL_WaitThread(controller->thread, NULL);
     receiver_join(&controller->receiver);
 }

app/src/controller.h

@@ -1,23 +1,23 @@
 #ifndef CONTROLLER_H
 #define CONTROLLER_H
 
-#include "common.h"
-
 #include <stdbool.h>
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_thread.h>
 
+#include "config.h"
 #include "control_msg.h"
 #include "receiver.h"
 #include "util/cbuf.h"
 #include "util/net.h"
-#include "util/thread.h"
 
 struct control_msg_queue CBUF(struct control_msg, 64);
 
 struct controller {
     socket_t control_socket;
-    sc_thread thread;
-    sc_mutex mutex;
-    sc_cond msg_cond;
+    SDL_Thread *thread;
+    SDL_mutex *mutex;
+    SDL_cond *msg_cond;
     bool stopped;
     struct control_msg_queue queue;
     struct receiver receiver;

app/src/coords.h

@@ -1,24 +0,0 @@
-#ifndef SC_COORDS
-#define SC_COORDS
-
-#include <stdint.h>
-
-struct size {
-    uint16_t width;
-    uint16_t height;
-};
-
-struct point {
-    int32_t x;
-    int32_t y;
-};
-
-struct position {
-    // The video screen size may be different from the real device screen size,
-    // so store to which size the absolute position apply, to scale it
-    // accordingly.
-    struct size screen_size;
-    struct point point;
-};
-
-#endif

app/src/decoder.c

@@ -1,43 +1,42 @@
 #include "decoder.h"
 
 #include <libavformat/avformat.h>
+#include <libavutil/time.h>
+#include <SDL2/SDL_events.h>
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_thread.h>
+#include <unistd.h>
 
+#include "config.h"
+#include "compat.h"
 #include "events.h"
+#include "recorder.h"
 #include "video_buffer.h"
-#include "trait/frame_sink.h"
+#include "util/buffer_util.h"
 #include "util/log.h"
 
-/** Downcast packet_sink to decoder */
-#define DOWNCAST(SINK) container_of(SINK, struct decoder, packet_sink)
-
+// set the decoded frame as ready for rendering, and notify
 static void
-decoder_close_first_sinks(struct decoder *decoder, unsigned count) {
-    while (count) {
-        struct sc_frame_sink *sink = decoder->sinks[--count];
-        sink->ops->close(sink);
+push_frame(struct decoder *decoder) {
+    bool previous_frame_skipped;
+    video_buffer_offer_decoded_frame(decoder->video_buffer,
+                                     &previous_frame_skipped);
+    if (previous_frame_skipped) {
+        // the previous EVENT_NEW_FRAME will consume this frame
+        return;
     }
+    static SDL_Event new_frame_event = {
+        .type = EVENT_NEW_FRAME,
+    };
+    SDL_PushEvent(&new_frame_event);
 }
 
-static inline void
-decoder_close_sinks(struct decoder *decoder) {
-    decoder_close_first_sinks(decoder, decoder->sink_count);
+void
+decoder_init(struct decoder *decoder, struct video_buffer *vb) {
+    decoder->video_buffer = vb;
 }
 
-static bool
-decoder_open_sinks(struct decoder *decoder) {
-    for (unsigned i = 0; i < decoder->sink_count; ++i) {
-        struct sc_frame_sink *sink = decoder->sinks[i];
-        if (!sink->ops->open(sink)) {
-            LOGE("Could not open frame sink %d", i);
-            decoder_close_first_sinks(decoder, i);
-            return false;
-        }
-    }
-
-    return true;
-}
-
-static bool
+bool
 decoder_open(struct decoder *decoder, const AVCodec *codec) {
     decoder->codec_ctx = avcodec_alloc_context3(codec);
     if (!decoder->codec_ctx) {
@@ -51,105 +50,52 @@ decoder_open(struct decoder *decoder, const AVCodec *codec) {
         return false;
     }
 
-    decoder->frame = av_frame_alloc();
-    if (!decoder->frame) {
-        LOGE("Could not create decoder frame");
-        avcodec_close(decoder->codec_ctx);
-        avcodec_free_context(&decoder->codec_ctx);
-        return false;
-    }
-
-    if (!decoder_open_sinks(decoder)) {
-        LOGE("Could not open decoder sinks");
-        av_frame_free(&decoder->frame);
-        avcodec_close(decoder->codec_ctx);
-        avcodec_free_context(&decoder->codec_ctx);
-    }
-
     return true;
 }
 
-static void
+void
 decoder_close(struct decoder *decoder) {
-    decoder_close_sinks(decoder);
-    av_frame_free(&decoder->frame);
     avcodec_close(decoder->codec_ctx);
     avcodec_free_context(&decoder->codec_ctx);
 }
 
-static bool
-push_frame_to_sinks(struct decoder *decoder, const AVFrame *frame) {
-    for (unsigned i = 0; i < decoder->sink_count; ++i) {
-        struct sc_frame_sink *sink = decoder->sinks[i];
-        if (!sink->ops->push(sink, frame)) {
-            LOGE("Could not send frame to sink %d", i);
-            return false;
-        }
-    }
-
-    return true;
-}
-
-static bool
+bool
 decoder_push(struct decoder *decoder, const AVPacket *packet) {
-    bool is_config = packet->pts == AV_NOPTS_VALUE;
-    if (is_config) {
-        // nothing to do
-        return true;
-    }
-
+// the new decoding/encoding API has been introduced by:
+// <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7fc329e2dd6226dfecaa4a1d7adf353bf2773726>
+#ifdef SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
     int ret;
     if ((ret = avcodec_send_packet(decoder->codec_ctx, packet)) < 0) {
         LOGE("Could not send video packet: %d", ret);
         return false;
     }
-    ret = avcodec_receive_frame(decoder->codec_ctx, decoder->frame);
+    ret = avcodec_receive_frame(decoder->codec_ctx,
+                                decoder->video_buffer->decoding_frame);
     if (!ret) {
         // a frame was received
-        bool ok = push_frame_to_sinks(decoder, decoder->frame);
-        // A frame lost should not make the whole pipeline fail. The error, if
-        // any, is already logged.
-        (void) ok;
+        push_frame(decoder);
     } else if (ret != AVERROR(EAGAIN)) {
         LOGE("Could not receive video frame: %d", ret);
         return false;
     }
+#else
+    int got_picture;
+    int len = avcodec_decode_video2(decoder->codec_ctx,
+                                    decoder->video_buffer->decoding_frame,
+                                    &got_picture,
+                                    packet);
+    if (len < 0) {
+        LOGE("Could not decode video packet: %d", len);
+        return false;
+    }
+    if (got_picture) {
+        push_frame(decoder);
+    }
+#endif
     return true;
 }
 
-static bool
-decoder_packet_sink_open(struct sc_packet_sink *sink, const AVCodec *codec) {
-    struct decoder *decoder = DOWNCAST(sink);
-    return decoder_open(decoder, codec);
-}
-
-static void
-decoder_packet_sink_close(struct sc_packet_sink *sink) {
-    struct decoder *decoder = DOWNCAST(sink);
-    decoder_close(decoder);
-}
-
-static bool
-decoder_packet_sink_push(struct sc_packet_sink *sink, const AVPacket *packet) {
-    struct decoder *decoder = DOWNCAST(sink);
-    return decoder_push(decoder, packet);
-}
-
 void
-decoder_init(struct decoder *decoder) {
-    static const struct sc_packet_sink_ops ops = {
-        .open = decoder_packet_sink_open,
-        .close = decoder_packet_sink_close,
-        .push = decoder_packet_sink_push,
-    };
-
-    decoder->packet_sink.ops = &ops;
-}
-
-void
-decoder_add_sink(struct decoder *decoder, struct sc_frame_sink *sink) {
-    assert(decoder->sink_count < DECODER_MAX_SINKS);
-    assert(sink);
-    assert(sink->ops);
-    decoder->sinks[decoder->sink_count++] = sink;
+decoder_interrupt(struct decoder *decoder) {
+    video_buffer_interrupt(decoder->video_buffer);
 }

app/src/decoder.h

@@ -1,29 +1,31 @@
 #ifndef DECODER_H
 #define DECODER_H
 
-#include "common.h"
-
-#include "trait/packet_sink.h"
-
 #include <stdbool.h>
 #include <libavformat/avformat.h>
 
-#define DECODER_MAX_SINKS 1
+#include "config.h"
+
+struct video_buffer;
 
 struct decoder {
-    struct sc_packet_sink packet_sink; // packet sink trait
-
-    struct sc_frame_sink *sinks[DECODER_MAX_SINKS];
-    unsigned sink_count;
-
+    struct video_buffer *video_buffer;
     AVCodecContext *codec_ctx;
-    AVFrame *frame;
 };
 
 void
-decoder_init(struct decoder *decoder);
+decoder_init(struct decoder *decoder, struct video_buffer *vb);
+
+bool
+decoder_open(struct decoder *decoder, const AVCodec *codec);
 
 void
-decoder_add_sink(struct decoder *decoder, struct sc_frame_sink *sink);
+decoder_close(struct decoder *decoder);
+
+bool
+decoder_push(struct decoder *decoder, const AVPacket *packet);
+
+void
+decoder_interrupt(struct decoder *decoder);
 
 #endif

app/src/device.c

@@ -1,5 +1,6 @@
 #include "device.h"
 
+#include "config.h"
 #include "util/log.h"
 
 bool

app/src/device.h

@@ -1,11 +1,10 @@
 #ifndef DEVICE_H
 #define DEVICE_H
 
-#include "common.h"
-
 #include <stdbool.h>
 
-#include "coords.h"
+#include "config.h"
+#include "common.h"
 #include "util/net.h"
 
 #define DEVICE_NAME_FIELD_LENGTH 64

app/src/device_msg.c

@@ -1,8 +1,8 @@
 #include "device_msg.h"
 
-#include <stdlib.h>
 #include <string.h>
 
+#include "config.h"
 #include "util/buffer_util.h"
 #include "util/log.h"
 
@@ -21,7 +21,7 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
             if (clipboard_len > len - 5) {
                 return 0; // not available
             }
-            char *text = malloc(clipboard_len + 1);
+            char *text = SDL_malloc(clipboard_len + 1);
             if (!text) {
                 LOGW("Could not allocate text for clipboard");
                 return -1;
@@ -43,6 +43,6 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
 void
 device_msg_destroy(struct device_msg *msg) {
     if (msg->type == DEVICE_MSG_TYPE_CLIPBOARD) {
-        free(msg->clipboard.text);
+        SDL_free(msg->clipboard.text);
     }
 }

app/src/device_msg.h

@@ -1,12 +1,12 @@
 #ifndef DEVICEMSG_H
 #define DEVICEMSG_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <stdint.h>
 #include <unistd.h>
 
+#include "config.h"
+
 #define DEVICE_MSG_MAX_SIZE (1 << 18) // 256k
 // type: 1 byte; length: 4 bytes
 #define DEVICE_MSG_TEXT_MAX_LENGTH (DEVICE_MSG_MAX_SIZE - 5)
@@ -19,7 +19,7 @@ struct device_msg {
     enum device_msg_type type;
     union {
         struct {
-            char *text; // owned, to be freed by free()
+            char *text; // owned, to be freed by SDL_free()
         } clipboard;
     };
 };

app/src/event_converter.c

@@ -1,5 +1,7 @@
 #include "event_converter.h"
 
+#include "config.h"
+
 #define MAP(FROM, TO) case FROM: *to = TO; return true
 #define FAIL default: return false
 

app/src/event_converter.h

@@ -1,11 +1,10 @@
 #ifndef CONVERT_H
 #define CONVERT_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <SDL2/SDL_events.h>
 
+#include "config.h"
 #include "control_msg.h"
 
 bool

app/src/events.h

@@ -1,2 +1,3 @@
-#define EVENT_NEW_FRAME       SDL_USEREVENT
-#define EVENT_STREAM_STOPPED (SDL_USEREVENT + 1)
+#define EVENT_NEW_SESSION SDL_USEREVENT
+#define EVENT_NEW_FRAME (SDL_USEREVENT + 1)
+#define EVENT_STREAM_STOPPED (SDL_USEREVENT + 2)

app/src/file_handler.c

@@ -3,14 +3,16 @@
 #include <assert.h>
 #include <string.h>
 
-#include "adb.h"
+#include "config.h"
+#include "command.h"
+#include "util/lock.h"
 #include "util/log.h"
 
 #define DEFAULT_PUSH_TARGET "/sdcard/"
 
 static void
 file_handler_request_destroy(struct file_handler_request *req) {
-    free(req->file);
+    SDL_free(req->file);
 }
 
 bool
@@ -19,23 +21,21 @@ file_handler_init(struct file_handler *file_handler, const char *serial,
 
     cbuf_init(&file_handler->queue);
 
-    bool ok = sc_mutex_init(&file_handler->mutex);
-    if (!ok) {
+    if (!(file_handler->mutex = SDL_CreateMutex())) {
         return false;
     }
 
-    ok = sc_cond_init(&file_handler->event_cond);
-    if (!ok) {
-        sc_mutex_destroy(&file_handler->mutex);
+    if (!(file_handler->event_cond = SDL_CreateCond())) {
+        SDL_DestroyMutex(file_handler->mutex);
         return false;
     }
 
     if (serial) {
-        file_handler->serial = strdup(serial);
+        file_handler->serial = SDL_strdup(serial);
         if (!file_handler->serial) {
             LOGW("Could not strdup serial");
-            sc_cond_destroy(&file_handler->event_cond);
-            sc_mutex_destroy(&file_handler->mutex);
+            SDL_DestroyCond(file_handler->event_cond);
+            SDL_DestroyMutex(file_handler->mutex);
             return false;
         }
     } else {
@@ -55,9 +55,9 @@ file_handler_init(struct file_handler *file_handler, const char *serial,
 
 void
 file_handler_destroy(struct file_handler *file_handler) {
-    sc_cond_destroy(&file_handler->event_cond);
-    sc_mutex_destroy(&file_handler->mutex);
-    free(file_handler->serial);
+    SDL_DestroyCond(file_handler->event_cond);
+    SDL_DestroyMutex(file_handler->mutex);
+    SDL_free(file_handler->serial);
 
     struct file_handler_request req;
     while (cbuf_take(&file_handler->queue, &req)) {
@@ -93,13 +93,13 @@ file_handler_request(struct file_handler *file_handler,
         .file = file,
     };
 
-    sc_mutex_lock(&file_handler->mutex);
+    mutex_lock(file_handler->mutex);
     bool was_empty = cbuf_is_empty(&file_handler->queue);
     bool res = cbuf_push(&file_handler->queue, req);
     if (was_empty) {
-        sc_cond_signal(&file_handler->event_cond);
+        cond_signal(file_handler->event_cond);
     }
-    sc_mutex_unlock(&file_handler->mutex);
+    mutex_unlock(file_handler->mutex);
     return res;
 }
 
@@ -108,14 +108,14 @@ run_file_handler(void *data) {
     struct file_handler *file_handler = data;
 
     for (;;) {
-        sc_mutex_lock(&file_handler->mutex);
+        mutex_lock(file_handler->mutex);
         file_handler->current_process = PROCESS_NONE;
         while (!file_handler->stopped && cbuf_is_empty(&file_handler->queue)) {
-            sc_cond_wait(&file_handler->event_cond, &file_handler->mutex);
+            cond_wait(file_handler->event_cond, file_handler->mutex);
         }
         if (file_handler->stopped) {
             // stop immediately, do not process further events
-            sc_mutex_unlock(&file_handler->mutex);
+            mutex_unlock(file_handler->mutex);
             break;
         }
         struct file_handler_request req;
@@ -133,16 +133,16 @@ run_file_handler(void *data) {
                                 file_handler->push_target);
         }
         file_handler->current_process = process;
-        sc_mutex_unlock(&file_handler->mutex);
+        mutex_unlock(file_handler->mutex);
 
         if (req.action == ACTION_INSTALL_APK) {
-            if (process_check_success(process, "adb install", false)) {
+            if (process_check_success(process, "adb install")) {
                 LOGI("%s successfully installed", req.file);
             } else {
                 LOGE("Failed to install %s", req.file);
             }
         } else {
-            if (process_check_success(process, "adb push", false)) {
+            if (process_check_success(process, "adb push")) {
                 LOGI("%s successfully pushed to %s", req.file,
                                                      file_handler->push_target);
             } else {
@@ -151,14 +151,6 @@ run_file_handler(void *data) {
             }
         }
 
-        sc_mutex_lock(&file_handler->mutex);
-        // Close the process (it is necessary already terminated)
-        // Execute this call with mutex locked to avoid race conditions with
-        // file_handler_stop()
-        process_close(file_handler->current_process);
-        file_handler->current_process = PROCESS_NONE;
-        sc_mutex_unlock(&file_handler->mutex);
-
         file_handler_request_destroy(&req);
     }
     return 0;
@@ -168,9 +160,9 @@ bool
 file_handler_start(struct file_handler *file_handler) {
     LOGD("Starting file_handler thread");
 
-    bool ok = sc_thread_create(&file_handler->thread, run_file_handler,
-                               "file_handler", file_handler);
-    if (!ok) {
+    file_handler->thread = SDL_CreateThread(run_file_handler, "file_handler",
+                                            file_handler);
+    if (!file_handler->thread) {
         LOGC("Could not start file_handler thread");
         return false;
     }
@@ -180,18 +172,20 @@ file_handler_start(struct file_handler *file_handler) {
 
 void
 file_handler_stop(struct file_handler *file_handler) {
-    sc_mutex_lock(&file_handler->mutex);
+    mutex_lock(file_handler->mutex);
     file_handler->stopped = true;
-    sc_cond_signal(&file_handler->event_cond);
+    cond_signal(file_handler->event_cond);
     if (file_handler->current_process != PROCESS_NONE) {
-        if (!process_terminate(file_handler->current_process)) {
-            LOGW("Could not terminate push/install process");
+        if (!cmd_terminate(file_handler->current_process)) {
+            LOGW("Could not terminate install process");
         }
+        cmd_simple_wait(file_handler->current_process, NULL);
+        file_handler->current_process = PROCESS_NONE;
     }
-    sc_mutex_unlock(&file_handler->mutex);
+    mutex_unlock(file_handler->mutex);
 }
 
 void
 file_handler_join(struct file_handler *file_handler) {
-    sc_thread_join(&file_handler->thread, NULL);
+    SDL_WaitThread(file_handler->thread, NULL);
 }

app/src/file_handler.h

@@ -1,13 +1,13 @@
 #ifndef FILE_HANDLER_H
 #define FILE_HANDLER_H
 
-#include "common.h"
-
 #include <stdbool.h>
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_thread.h>
 
-#include "adb.h"
+#include "config.h"
+#include "command.h"
 #include "util/cbuf.h"
-#include "util/thread.h"
 
 typedef enum {
     ACTION_INSTALL_APK,
@@ -24,9 +24,9 @@ struct file_handler_request_queue CBUF(struct file_handler_request, 16);
 struct file_handler {
     char *serial;
     const char *push_target;
-    sc_thread thread;
-    sc_mutex mutex;
-    sc_cond event_cond;
+    SDL_Thread *thread;
+    SDL_mutex *mutex;
+    SDL_cond *event_cond;
     bool stopped;
     bool initialized;
     process_t current_process;
@@ -49,7 +49,7 @@ file_handler_stop(struct file_handler *file_handler);
 void
 file_handler_join(struct file_handler *file_handler);
 
-// take ownership of file, and will free() it
+// take ownership of file, and will SDL_free() it
 bool
 file_handler_request(struct file_handler *file_handler,
                      file_handler_action_t action,

app/src/fps_counter.c

@@ -3,24 +3,26 @@
 #include <assert.h>
 #include <SDL2/SDL_timer.h>
 
+#include "config.h"
+#include "util/lock.h"
 #include "util/log.h"
 
 #define FPS_COUNTER_INTERVAL_MS 1000
 
 bool
 fps_counter_init(struct fps_counter *counter) {
-    bool ok = sc_mutex_init(&counter->mutex);
-    if (!ok) {
+    counter->mutex = SDL_CreateMutex();
+    if (!counter->mutex) {
         return false;
     }
 
-    ok = sc_cond_init(&counter->state_cond);
-    if (!ok) {
-        sc_mutex_destroy(&counter->mutex);
+    counter->state_cond = SDL_CreateCond();
+    if (!counter->state_cond) {
+        SDL_DestroyMutex(counter->mutex);
         return false;
     }
 
-    counter->thread_started = false;
+    counter->thread = NULL;
     atomic_init(&counter->started, 0);
     // no need to initialize the other fields, they are unused until started
 
@@ -29,8 +31,8 @@ fps_counter_init(struct fps_counter *counter) {
 
 void
 fps_counter_destroy(struct fps_counter *counter) {
-    sc_cond_destroy(&counter->state_cond);
-    sc_mutex_destroy(&counter->mutex);
+    SDL_DestroyCond(counter->state_cond);
+    SDL_DestroyMutex(counter->mutex);
 }
 
 static inline bool
@@ -76,10 +78,10 @@ static int
 run_fps_counter(void *data) {
     struct fps_counter *counter = data;
 
-    sc_mutex_lock(&counter->mutex);
+    mutex_lock(counter->mutex);
     while (!counter->interrupted) {
         while (!counter->interrupted && !is_started(counter)) {
-            sc_cond_wait(&counter->state_cond, &counter->mutex);
+            cond_wait(counter->state_cond, counter->mutex);
         }
         while (!counter->interrupted && is_started(counter)) {
             uint32_t now = SDL_GetTicks();
@@ -89,35 +91,32 @@ run_fps_counter(void *data) {
             uint32_t remaining = counter->next_timestamp - now;
 
             // ignore the reason (timeout or signaled), we just loop anyway
-            sc_cond_timedwait(&counter->state_cond, &counter->mutex, remaining);
+            cond_wait_timeout(counter->state_cond, counter->mutex, remaining);
         }
     }
-    sc_mutex_unlock(&counter->mutex);
+    mutex_unlock(counter->mutex);
     return 0;
 }
 
 bool
 fps_counter_start(struct fps_counter *counter) {
-    sc_mutex_lock(&counter->mutex);
+    mutex_lock(counter->mutex);
     counter->next_timestamp = SDL_GetTicks() + FPS_COUNTER_INTERVAL_MS;
     counter->nr_rendered = 0;
     counter->nr_skipped = 0;
-    sc_mutex_unlock(&counter->mutex);
+    mutex_unlock(counter->mutex);
 
     set_started(counter, true);
-    sc_cond_signal(&counter->state_cond);
+    cond_signal(counter->state_cond);
 
-    // counter->thread_started and counter->thread are always accessed from the
-    // same thread, no need to lock
-    if (!counter->thread_started) {
-        bool ok = sc_thread_create(&counter->thread, run_fps_counter,
-                                   "fps counter", counter);
-        if (!ok) {
+    // counter->thread is always accessed from the same thread, no need to lock
+    if (!counter->thread) {
+        counter->thread =
+            SDL_CreateThread(run_fps_counter, "fps counter", counter);
+        if (!counter->thread) {
             LOGE("Could not start FPS counter thread");
             return false;
         }
-
-        counter->thread_started = true;
     }
 
     return true;
@@ -126,7 +125,7 @@ fps_counter_start(struct fps_counter *counter) {
 void
 fps_counter_stop(struct fps_counter *counter) {
     set_started(counter, false);
-    sc_cond_signal(&counter->state_cond);
+    cond_signal(counter->state_cond);
 }
 
 bool
@@ -136,21 +135,21 @@ fps_counter_is_started(struct fps_counter *counter) {
 
 void
 fps_counter_interrupt(struct fps_counter *counter) {
-    if (!counter->thread_started) {
+    if (!counter->thread) {
         return;
     }
 
-    sc_mutex_lock(&counter->mutex);
+    mutex_lock(counter->mutex);
     counter->interrupted = true;
-    sc_mutex_unlock(&counter->mutex);
+    mutex_unlock(counter->mutex);
     // wake up blocking wait
-    sc_cond_signal(&counter->state_cond);
+    cond_signal(counter->state_cond);
 }
 
 void
 fps_counter_join(struct fps_counter *counter) {
-    if (counter->thread_started) {
-        sc_thread_join(&counter->thread, NULL);
+    if (counter->thread) {
+        SDL_WaitThread(counter->thread, NULL);
     }
 }
 
@@ -160,11 +159,11 @@ fps_counter_add_rendered_frame(struct fps_counter *counter) {
         return;
     }
 
-    sc_mutex_lock(&counter->mutex);
+    mutex_lock(counter->mutex);
     uint32_t now = SDL_GetTicks();
     check_interval_expired(counter, now);
     ++counter->nr_rendered;
-    sc_mutex_unlock(&counter->mutex);
+    mutex_unlock(counter->mutex);
 }
 
 void
@@ -173,9 +172,9 @@ fps_counter_add_skipped_frame(struct fps_counter *counter) {
         return;
     }
 
-    sc_mutex_lock(&counter->mutex);
+    mutex_lock(counter->mutex);
     uint32_t now = SDL_GetTicks();
     check_interval_expired(counter, now);
     ++counter->nr_skipped;
-    sc_mutex_unlock(&counter->mutex);
+    mutex_unlock(counter->mutex);
 }

app/src/fps_counter.h

@@ -1,20 +1,18 @@
 #ifndef FPSCOUNTER_H
 #define FPSCOUNTER_H
 
-#include "common.h"
-
 #include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_thread.h>
 
-#include "util/thread.h"
+#include "config.h"
 
 struct fps_counter {
-    sc_thread thread;
-    sc_mutex mutex;
-    sc_cond state_cond;
-
-    bool thread_started;
+    SDL_Thread *thread;
+    SDL_mutex *mutex;
+    SDL_cond *state_cond;
 
     // atomic so that we can check without locking the mutex
     // if the FPS counter is disabled, we don't want to lock unnecessarily

app/src/input_manager.c

@@ -3,7 +3,9 @@
 #include <assert.h>
 #include <SDL2/SDL_keycode.h>
 
+#include "config.h"
 #include "event_converter.h"
+#include "util/lock.h"
 #include "util/log.h"
 
 static const int ACTION_DOWN = 1;
@@ -189,20 +191,13 @@ set_device_clipboard(struct controller *controller, bool paste) {
         return;
     }
 
-    char *text_dup = strdup(text);
-    SDL_free(text);
-    if (!text_dup) {
-        LOGW("Could not strdup input text");
-        return;
-    }
-
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_SET_CLIPBOARD;
-    msg.set_clipboard.text = text_dup;
+    msg.set_clipboard.text = text;
     msg.set_clipboard.paste = paste;
 
     if (!controller_push_msg(controller, &msg)) {
-        free(text_dup);
+        SDL_free(text);
         LOGW("Could not request 'set device clipboard'");
     }
 }
@@ -248,18 +243,11 @@ clipboard_paste(struct controller *controller) {
         return;
     }
 
-    char *text_dup = strdup(text);
-    SDL_free(text);
-    if (!text_dup) {
-        LOGW("Could not strdup input text");
-        return;
-    }
-
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
-    msg.inject_text.text = text_dup;
+    msg.inject_text.text = text;
     if (!controller_push_msg(controller, &msg)) {
-        free(text_dup);
+        SDL_free(text);
         LOGW("Could not request 'paste clipboard'");
     }
 }
@@ -286,7 +274,7 @@ rotate_client_right(struct screen *screen) {
     screen_set_rotation(screen, new_rotation);
 }
 
-static void
+void
 input_manager_process_text_input(struct input_manager *im,
                                  const SDL_TextInputEvent *event) {
     if (is_shortcut_mod(im, SDL_GetModState())) {
@@ -304,13 +292,13 @@ input_manager_process_text_input(struct input_manager *im,
 
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
-    msg.inject_text.text = strdup(event->text);
+    msg.inject_text.text = SDL_strdup(event->text);
     if (!msg.inject_text.text) {
         LOGW("Could not strdup input text");
         return;
     }
     if (!controller_push_msg(im->controller, &msg)) {
-        free(msg.inject_text.text);
+        SDL_free(msg.inject_text.text);
         LOGW("Could not request 'inject text'");
     }
 }
@@ -366,7 +354,7 @@ convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
     return true;
 }
 
-static void
+void
 input_manager_process_key(struct input_manager *im,
                           const SDL_KeyboardEvent *event) {
     // control: indicates the state of the command-line option --no-control
@@ -480,7 +468,9 @@ input_manager_process_key(struct input_manager *im,
                 return;
             case SDLK_i:
                 if (!shift && !repeat && down) {
-                    switch_fps_counter_state(im->fps_counter);
+                    struct fps_counter *fps_counter =
+                        im->video_buffer->fps_counter;
+                    switch_fps_counter_state(fps_counter);
                 }
                 return;
             case SDLK_n:
@@ -549,7 +539,7 @@ convert_mouse_motion(const SDL_MouseMotionEvent *from, struct screen *screen,
     return true;
 }
 
-static void
+void
 input_manager_process_mouse_motion(struct input_manager *im,
                                    const SDL_MouseMotionEvent *event) {
     if (!event->state) {
@@ -603,7 +593,7 @@ convert_touch(const SDL_TouchFingerEvent *from, struct screen *screen,
     return true;
 }
 
-static void
+void
 input_manager_process_touch(struct input_manager *im,
                             const SDL_TouchFingerEvent *event) {
     struct control_msg msg;
@@ -635,7 +625,7 @@ convert_mouse_button(const SDL_MouseButtonEvent *from, struct screen *screen,
     return true;
 }
 
-static void
+void
 input_manager_process_mouse_button(struct input_manager *im,
                                    const SDL_MouseButtonEvent *event) {
     bool control = im->control;
@@ -734,7 +724,7 @@ convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct screen *screen,
     return true;
 }
 
-static void
+void
 input_manager_process_mouse_wheel(struct input_manager *im,
                                   const SDL_MouseWheelEvent *event) {
     struct control_msg msg;
@@ -744,46 +734,3 @@ input_manager_process_mouse_wheel(struct input_manager *im,
         }
     }
 }
-
-bool
-input_manager_handle_event(struct input_manager *im, SDL_Event *event) {
-    switch (event->type) {
-        case SDL_TEXTINPUT:
-            if (!im->control) {
-                return true;
-            }
-            input_manager_process_text_input(im, &event->text);
-            return true;
-        case SDL_KEYDOWN:
-        case SDL_KEYUP:
-            // some key events do not interact with the device, so process the
-            // event even if control is disabled
-            input_manager_process_key(im, &event->key);
-            return true;
-        case SDL_MOUSEMOTION:
-            if (!im->control) {
-                break;
-            }
-            input_manager_process_mouse_motion(im, &event->motion);
-            return true;
-        case SDL_MOUSEWHEEL:
-            if (!im->control) {
-                break;
-            }
-            input_manager_process_mouse_wheel(im, &event->wheel);
-            return true;
-        case SDL_MOUSEBUTTONDOWN:
-        case SDL_MOUSEBUTTONUP:
-            // some mouse events do not interact with the device, so process
-            // the event even if control is disabled
-            input_manager_process_mouse_button(im, &event->button);
-            return true;
-        case SDL_FINGERMOTION:
-        case SDL_FINGERDOWN:
-        case SDL_FINGERUP:
-            input_manager_process_touch(im, &event->tfinger);
-            return true;
-    }
-
-    return false;
-}

app/src/input_manager.h

@@ -1,20 +1,21 @@
 #ifndef INPUTMANAGER_H
 #define INPUTMANAGER_H
 
-#include "common.h"
-
 #include <stdbool.h>
 
 #include <SDL2/SDL.h>
 
+#include "config.h"
+#include "common.h"
 #include "controller.h"
 #include "fps_counter.h"
 #include "scrcpy.h"
 #include "screen.h"
+#include "video_buffer.h"
 
 struct input_manager {
     struct controller *controller;
-    struct fps_counter *fps_counter;
+    struct video_buffer *video_buffer;
     struct screen *screen;
 
     // SDL reports repeated events as a boolean, but Android expects the actual
@@ -39,7 +40,28 @@ void
 input_manager_init(struct input_manager *im,
                    const struct scrcpy_options *options);
 
-bool
-input_manager_handle_event(struct input_manager *im, SDL_Event *event);
+void
+input_manager_process_text_input(struct input_manager *im,
+                                 const SDL_TextInputEvent *event);
+
+void
+input_manager_process_key(struct input_manager *im,
+                          const SDL_KeyboardEvent *event);
+
+void
+input_manager_process_mouse_motion(struct input_manager *im,
+                                   const SDL_MouseMotionEvent *event);
+
+void
+input_manager_process_touch(struct input_manager *im,
+                            const SDL_TouchFingerEvent *event);
+
+void
+input_manager_process_mouse_button(struct input_manager *im,
+                                   const SDL_MouseButtonEvent *event);
+
+void
+input_manager_process_mouse_wheel(struct input_manager *im,
+                                  const SDL_MouseWheelEvent *event);
 
 #endif

app/src/main.c

@@ -1,7 +1,5 @@
 #include "scrcpy.h"
 
-#include "common.h"
-
 #include <assert.h>
 #include <stdbool.h>
 #include <unistd.h>
@@ -9,7 +7,9 @@
 #define SDL_MAIN_HANDLED // avoid link error on Linux Windows Subsystem
 #include <SDL2/SDL.h>
 
+#include "config.h"
 #include "cli.h"
+#include "compat.h"
 #include "util/log.h"
 
 static void

app/src/opengl.h

@@ -1,11 +1,11 @@
 #ifndef SC_OPENGL_H
 #define SC_OPENGL_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <SDL2/SDL_opengl.h>
 
+#include "config.h"
+
 struct sc_opengl {
     const char *version;
     bool is_opengles;

app/src/receiver.c

@@ -3,13 +3,14 @@
 #include <assert.h>
 #include <SDL2/SDL_clipboard.h>
 
+#include "config.h"
 #include "device_msg.h"
+#include "util/lock.h"
 #include "util/log.h"
 
 bool
 receiver_init(struct receiver *receiver, socket_t control_socket) {
-    bool ok = sc_mutex_init(&receiver->mutex);
-    if (!ok) {
+    if (!(receiver->mutex = SDL_CreateMutex())) {
         return false;
     }
     receiver->control_socket = control_socket;
@@ -18,7 +19,7 @@ receiver_init(struct receiver *receiver, socket_t control_socket) {
 
 void
 receiver_destroy(struct receiver *receiver) {
-    sc_mutex_destroy(&receiver->mutex);
+    SDL_DestroyMutex(receiver->mutex);
 }
 
 static void
@@ -101,9 +102,8 @@ bool
 receiver_start(struct receiver *receiver) {
     LOGD("Starting receiver thread");
 
-    bool ok = sc_thread_create(&receiver->thread, run_receiver, "receiver",
-                               receiver);
-    if (!ok) {
+    receiver->thread = SDL_CreateThread(run_receiver, "receiver", receiver);
+    if (!receiver->thread) {
         LOGC("Could not start receiver thread");
         return false;
     }
@@ -113,5 +113,5 @@ receiver_start(struct receiver *receiver) {
 
 void
 receiver_join(struct receiver *receiver) {
-    sc_thread_join(&receiver->thread, NULL);
+    SDL_WaitThread(receiver->thread, NULL);
 }

app/src/receiver.h

@@ -1,19 +1,19 @@
 #ifndef RECEIVER_H
 #define RECEIVER_H
 
-#include "common.h"
-
 #include <stdbool.h>
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_thread.h>
 
+#include "config.h"
 #include "util/net.h"
-#include "util/thread.h"
 
 // receive events from the device
 // managed by the controller
 struct receiver {
     socket_t control_socket;
-    sc_thread thread;
-    sc_mutex mutex;
+    SDL_Thread *thread;
+    SDL_mutex *mutex;
 };
 
 bool

app/src/recorder.c

@@ -3,11 +3,11 @@
 #include <assert.h>
 #include <libavutil/time.h>
 
+#include "config.h"
+#include "compat.h"
+#include "util/lock.h"
 #include "util/log.h"
 
-/** Downcast packet_sink to recorder */
-#define DOWNCAST(SINK) container_of(SINK, struct recorder, packet_sink)
-
 static const AVRational SCRCPY_TIME_BASE = {1, 1000000}; // timestamps in us
 
 static const AVOutputFormat *
@@ -29,7 +29,7 @@ find_muxer(const char *name) {
 
 static struct record_packet *
 record_packet_new(const AVPacket *packet) {
-    struct record_packet *rec = malloc(sizeof(*rec));
+    struct record_packet *rec = SDL_malloc(sizeof(*rec));
     if (!rec) {
         return NULL;
     }
@@ -39,7 +39,7 @@ record_packet_new(const AVPacket *packet) {
     av_init_packet(&rec->packet);
 
     if (av_packet_ref(&rec->packet, packet)) {
-        free(rec);
+        SDL_free(rec);
         return NULL;
     }
     return rec;
@@ -48,7 +48,7 @@ record_packet_new(const AVPacket *packet) {
 static void
 record_packet_delete(struct record_packet *rec) {
     av_packet_unref(&rec->packet);
-    free(rec);
+    SDL_free(rec);
 }
 
 static void
@@ -60,6 +60,50 @@ recorder_queue_clear(struct recorder_queue *queue) {
     }
 }
 
+bool
+recorder_init(struct recorder *recorder,
+              const char *filename,
+              enum sc_record_format format,
+              struct size declared_frame_size) {
+    recorder->filename = SDL_strdup(filename);
+    if (!recorder->filename) {
+        LOGE("Could not strdup filename");
+        return false;
+    }
+
+    recorder->mutex = SDL_CreateMutex();
+    if (!recorder->mutex) {
+        LOGC("Could not create mutex");
+        SDL_free(recorder->filename);
+        return false;
+    }
+
+    recorder->queue_cond = SDL_CreateCond();
+    if (!recorder->queue_cond) {
+        LOGC("Could not create cond");
+        SDL_DestroyMutex(recorder->mutex);
+        SDL_free(recorder->filename);
+        return false;
+    }
+
+    queue_init(&recorder->queue);
+    recorder->stopped = false;
+    recorder->failed = false;
+    recorder->format = format;
+    recorder->declared_frame_size = declared_frame_size;
+    recorder->header_written = false;
+    recorder->previous = NULL;
+
+    return true;
+}
+
+void
+recorder_destroy(struct recorder *recorder) {
+    SDL_DestroyCond(recorder->queue_cond);
+    SDL_DestroyMutex(recorder->mutex);
+    SDL_free(recorder->filename);
+}
+
 static const char *
 recorder_get_format_name(enum sc_record_format format) {
     switch (format) {
@@ -69,154 +113,7 @@ recorder_get_format_name(enum sc_record_format format) {
     }
 }
 
-static bool
-recorder_write_header(struct recorder *recorder, const AVPacket *packet) {
-    AVStream *ostream = recorder->ctx->streams[0];
-
-    uint8_t *extradata = av_malloc(packet->size * sizeof(uint8_t));
-    if (!extradata) {
-        LOGC("Could not allocate extradata");
-        return false;
-    }
-
-    // copy the first packet to the extra data
-    memcpy(extradata, packet->data, packet->size);
-
-    ostream->codecpar->extradata = extradata;
-    ostream->codecpar->extradata_size = packet->size;
-
-    int ret = avformat_write_header(recorder->ctx, NULL);
-    if (ret < 0) {
-        LOGE("Failed to write header to %s", recorder->filename);
-        return false;
-    }
-
-    return true;
-}
-
-static void
-recorder_rescale_packet(struct recorder *recorder, AVPacket *packet) {
-    AVStream *ostream = recorder->ctx->streams[0];
-    av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
-}
-
-static bool
-recorder_write(struct recorder *recorder, AVPacket *packet) {
-    if (!recorder->header_written) {
-        if (packet->pts != AV_NOPTS_VALUE) {
-            LOGE("The first packet is not a config packet");
-            return false;
-        }
-        bool ok = recorder_write_header(recorder, packet);
-        if (!ok) {
-            return false;
-        }
-        recorder->header_written = true;
-        return true;
-    }
-
-    if (packet->pts == AV_NOPTS_VALUE) {
-        // ignore config packets
-        return true;
-    }
-
-    recorder_rescale_packet(recorder, packet);
-    return av_write_frame(recorder->ctx, packet) >= 0;
-}
-
-static int
-run_recorder(void *data) {
-    struct recorder *recorder = data;
-
-    for (;;) {
-        sc_mutex_lock(&recorder->mutex);
-
-        while (!recorder->stopped && queue_is_empty(&recorder->queue)) {
-            sc_cond_wait(&recorder->queue_cond, &recorder->mutex);
-        }
-
-        // if stopped is set, continue to process the remaining events (to
-        // finish the recording) before actually stopping
-
-        if (recorder->stopped && queue_is_empty(&recorder->queue)) {
-            sc_mutex_unlock(&recorder->mutex);
-            struct record_packet *last = recorder->previous;
-            if (last) {
-                // assign an arbitrary duration to the last packet
-                last->packet.duration = 100000;
-                bool ok = recorder_write(recorder, &last->packet);
-                if (!ok) {
-                    // failing to write the last frame is not very serious, no
-                    // future frame may depend on it, so the resulting file
-                    // will still be valid
-                    LOGW("Could not record last packet");
-                }
-                record_packet_delete(last);
-            }
-            break;
-        }
-
-        struct record_packet *rec;
-        queue_take(&recorder->queue, next, &rec);
-
-        sc_mutex_unlock(&recorder->mutex);
-
-        // recorder->previous is only written from this thread, no need to lock
-        struct record_packet *previous = recorder->previous;
-        recorder->previous = rec;
-
-        if (!previous) {
-            // we just received the first packet
-            continue;
-        }
-
-        // config packets have no PTS, we must ignore them
-        if (rec->packet.pts != AV_NOPTS_VALUE
-            && previous->packet.pts != AV_NOPTS_VALUE) {
-            // we now know the duration of the previous packet
-            previous->packet.duration = rec->packet.pts - previous->packet.pts;
-        }
-
-        bool ok = recorder_write(recorder, &previous->packet);
-        record_packet_delete(previous);
-        if (!ok) {
-            LOGE("Could not record packet");
-
-            sc_mutex_lock(&recorder->mutex);
-            recorder->failed = true;
-            // discard pending packets
-            recorder_queue_clear(&recorder->queue);
-            sc_mutex_unlock(&recorder->mutex);
-            break;
-        }
-    }
-
-    if (!recorder->failed) {
-        if (recorder->header_written) {
-            int ret = av_write_trailer(recorder->ctx);
-            if (ret < 0) {
-                LOGE("Failed to write trailer to %s", recorder->filename);
-                recorder->failed = true;
-            }
-        } else {
-            // the recorded file is empty
-            recorder->failed = true;
-        }
-    }
-
-    if (recorder->failed) {
-        LOGE("Recording failed to %s", recorder->filename);
-    } else {
-        const char *format_name = recorder_get_format_name(recorder->format);
-        LOGI("Recording complete to %s file: %s", format_name, recorder->filename);
-    }
-
-    LOGD("Recorder thread ended");
-
-    return 0;
-}
-
-static bool
+bool
 recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
     const char *format_name = recorder_get_format_name(recorder->format);
     assert(format_name);
@@ -247,11 +144,19 @@ recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
         return false;
     }
 
+#ifdef SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
     ostream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
     ostream->codecpar->codec_id = input_codec->id;
     ostream->codecpar->format = AV_PIX_FMT_YUV420P;
     ostream->codecpar->width = recorder->declared_frame_size.width;
     ostream->codecpar->height = recorder->declared_frame_size.height;
+#else
+    ostream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+    ostream->codec->codec_id = input_codec->id;
+    ostream->codec->pix_fmt = AV_PIX_FMT_YUV420P;
+    ostream->codec->width = recorder->declared_frame_size.width;
+    ostream->codec->height = recorder->declared_frame_size.height;
+#endif
 
     int ret = avio_open(&recorder->ctx->pb, recorder->filename,
                         AVIO_FLAG_WRITE);
@@ -262,124 +167,214 @@ recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
         return false;
     }
 
-    LOGD("Starting recorder thread");
-    bool ok = sc_thread_create(&recorder->thread, run_recorder, "recorder",
-                               recorder);
-    if (!ok) {
-        LOGC("Could not start recorder thread");
-        avformat_free_context(recorder->ctx);
-        return false;
-    }
-
     LOGI("Recording started to %s file: %s", format_name, recorder->filename);
 
     return true;
 }
 
-static void
+void
 recorder_close(struct recorder *recorder) {
-    sc_mutex_lock(&recorder->mutex);
-    recorder->stopped = true;
-    sc_cond_signal(&recorder->queue_cond);
-    sc_mutex_unlock(&recorder->mutex);
-
-    sc_thread_join(&recorder->thread, NULL);
-
+    if (recorder->header_written) {
+        int ret = av_write_trailer(recorder->ctx);
+        if (ret < 0) {
+            LOGE("Failed to write trailer to %s", recorder->filename);
+            recorder->failed = true;
+        }
+    } else {
+        // the recorded file is empty
+        recorder->failed = true;
+    }
     avio_close(recorder->ctx->pb);
     avformat_free_context(recorder->ctx);
+
+    if (recorder->failed) {
+        LOGE("Recording failed to %s", recorder->filename);
+    } else {
+        const char *format_name = recorder_get_format_name(recorder->format);
+        LOGI("Recording complete to %s file: %s", format_name, recorder->filename);
+    }
 }
 
 static bool
+recorder_write_header(struct recorder *recorder, const AVPacket *packet) {
+    AVStream *ostream = recorder->ctx->streams[0];
+
+    uint8_t *extradata = av_malloc(packet->size * sizeof(uint8_t));
+    if (!extradata) {
+        LOGC("Could not allocate extradata");
+        return false;
+    }
+
+    // copy the first packet to the extra data
+    memcpy(extradata, packet->data, packet->size);
+
+#ifdef SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
+    ostream->codecpar->extradata = extradata;
+    ostream->codecpar->extradata_size = packet->size;
+#else
+    ostream->codec->extradata = extradata;
+    ostream->codec->extradata_size = packet->size;
+#endif
+
+    int ret = avformat_write_header(recorder->ctx, NULL);
+    if (ret < 0) {
+        LOGE("Failed to write header to %s", recorder->filename);
+        return false;
+    }
+
+    return true;
+}
+
+static void
+recorder_rescale_packet(struct recorder *recorder, AVPacket *packet) {
+    AVStream *ostream = recorder->ctx->streams[0];
+    av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
+}
+
+bool
+recorder_write(struct recorder *recorder, AVPacket *packet) {
+    if (!recorder->header_written) {
+        if (packet->pts != AV_NOPTS_VALUE) {
+            LOGE("The first packet is not a config packet");
+            return false;
+        }
+        bool ok = recorder_write_header(recorder, packet);
+        if (!ok) {
+            return false;
+        }
+        recorder->header_written = true;
+        return true;
+    }
+
+    if (packet->pts == AV_NOPTS_VALUE) {
+        // ignore config packets
+        return true;
+    }
+
+    recorder_rescale_packet(recorder, packet);
+    return av_write_frame(recorder->ctx, packet) >= 0;
+}
+
+static int
+run_recorder(void *data) {
+    struct recorder *recorder = data;
+
+    for (;;) {
+        mutex_lock(recorder->mutex);
+
+        while (!recorder->stopped && queue_is_empty(&recorder->queue)) {
+            cond_wait(recorder->queue_cond, recorder->mutex);
+        }
+
+        // if stopped is set, continue to process the remaining events (to
+        // finish the recording) before actually stopping
+
+        if (recorder->stopped && queue_is_empty(&recorder->queue)) {
+            mutex_unlock(recorder->mutex);
+            struct record_packet *last = recorder->previous;
+            if (last) {
+                // assign an arbitrary duration to the last packet
+                last->packet.duration = 100000;
+                bool ok = recorder_write(recorder, &last->packet);
+                if (!ok) {
+                    // failing to write the last frame is not very serious, no
+                    // future frame may depend on it, so the resulting file
+                    // will still be valid
+                    LOGW("Could not record last packet");
+                }
+                record_packet_delete(last);
+            }
+            break;
+        }
+
+        struct record_packet *rec;
+        queue_take(&recorder->queue, next, &rec);
+
+        mutex_unlock(recorder->mutex);
+
+        // recorder->previous is only written from this thread, no need to lock
+        struct record_packet *previous = recorder->previous;
+        recorder->previous = rec;
+
+        if (!previous) {
+            // we just received the first packet
+            continue;
+        }
+
+        // config packets have no PTS, we must ignore them
+        if (rec->packet.pts != AV_NOPTS_VALUE
+            && previous->packet.pts != AV_NOPTS_VALUE) {
+            // we now know the duration of the previous packet
+            previous->packet.duration = rec->packet.pts - previous->packet.pts;
+        }
+
+        bool ok = recorder_write(recorder, &previous->packet);
+        record_packet_delete(previous);
+        if (!ok) {
+            LOGE("Could not record packet");
+
+            mutex_lock(recorder->mutex);
+            recorder->failed = true;
+            // discard pending packets
+            recorder_queue_clear(&recorder->queue);
+            mutex_unlock(recorder->mutex);
+            break;
+        }
+
+    }
+
+    LOGD("Recorder thread ended");
+
+    return 0;
+}
+
+bool
+recorder_start(struct recorder *recorder) {
+    LOGD("Starting recorder thread");
+
+    recorder->thread = SDL_CreateThread(run_recorder, "recorder", recorder);
+    if (!recorder->thread) {
+        LOGC("Could not start recorder thread");
+        return false;
+    }
+
+    return true;
+}
+
+void
+recorder_stop(struct recorder *recorder) {
+    mutex_lock(recorder->mutex);
+    recorder->stopped = true;
+    cond_signal(recorder->queue_cond);
+    mutex_unlock(recorder->mutex);
+}
+
+void
+recorder_join(struct recorder *recorder) {
+    SDL_WaitThread(recorder->thread, NULL);
+}
+
+bool
 recorder_push(struct recorder *recorder, const AVPacket *packet) {
-    sc_mutex_lock(&recorder->mutex);
+    mutex_lock(recorder->mutex);
     assert(!recorder->stopped);
 
     if (recorder->failed) {
         // reject any new packet (this will stop the stream)
-        sc_mutex_unlock(&recorder->mutex);
+        mutex_unlock(recorder->mutex);
         return false;
     }
 
     struct record_packet *rec = record_packet_new(packet);
     if (!rec) {
         LOGC("Could not allocate record packet");
-        sc_mutex_unlock(&recorder->mutex);
+        mutex_unlock(recorder->mutex);
         return false;
     }
 
     queue_push(&recorder->queue, next, rec);
-    sc_cond_signal(&recorder->queue_cond);
+    cond_signal(recorder->queue_cond);
 
-    sc_mutex_unlock(&recorder->mutex);
+    mutex_unlock(recorder->mutex);
     return true;
 }
-
-static bool
-recorder_packet_sink_open(struct sc_packet_sink *sink, const AVCodec *codec) {
-    struct recorder *recorder = DOWNCAST(sink);
-    return recorder_open(recorder, codec);
-}
-
-static void
-recorder_packet_sink_close(struct sc_packet_sink *sink) {
-    struct recorder *recorder = DOWNCAST(sink);
-    recorder_close(recorder);
-}
-
-static bool
-recorder_packet_sink_push(struct sc_packet_sink *sink, const AVPacket *packet) {
-    struct recorder *recorder = DOWNCAST(sink);
-    return recorder_push(recorder, packet);
-}
-
-bool
-recorder_init(struct recorder *recorder,
-              const char *filename,
-              enum sc_record_format format,
-              struct size declared_frame_size) {
-    recorder->filename = strdup(filename);
-    if (!recorder->filename) {
-        LOGE("Could not strdup filename");
-        return false;
-    }
-
-    bool ok = sc_mutex_init(&recorder->mutex);
-    if (!ok) {
-        LOGC("Could not create mutex");
-        free(recorder->filename);
-        return false;
-    }
-
-    ok = sc_cond_init(&recorder->queue_cond);
-    if (!ok) {
-        LOGC("Could not create cond");
-        sc_mutex_destroy(&recorder->mutex);
-        free(recorder->filename);
-        return false;
-    }
-
-    queue_init(&recorder->queue);
-    recorder->stopped = false;
-    recorder->failed = false;
-    recorder->format = format;
-    recorder->declared_frame_size = declared_frame_size;
-    recorder->header_written = false;
-    recorder->previous = NULL;
-
-    static const struct sc_packet_sink_ops ops = {
-        .open = recorder_packet_sink_open,
-        .close = recorder_packet_sink_close,
-        .push = recorder_packet_sink_push,
-    };
-
-    recorder->packet_sink.ops = &ops;
-
-    return true;
-}
-
-void
-recorder_destroy(struct recorder *recorder) {
-    sc_cond_destroy(&recorder->queue_cond);
-    sc_mutex_destroy(&recorder->mutex);
-    free(recorder->filename);
-}

app/src/recorder.h

@@ -1,16 +1,15 @@
 #ifndef RECORDER_H
 #define RECORDER_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <libavformat/avformat.h>
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_thread.h>
 
-#include "coords.h"
+#include "config.h"
+#include "common.h"
 #include "scrcpy.h"
-#include "trait/packet_sink.h"
 #include "util/queue.h"
-#include "util/thread.h"
 
 struct record_packet {
     AVPacket packet;
@@ -20,18 +19,16 @@ struct record_packet {
 struct recorder_queue QUEUE(struct record_packet);
 
 struct recorder {
-    struct sc_packet_sink packet_sink; // packet sink trait
-
     char *filename;
     enum sc_record_format format;
     AVFormatContext *ctx;
     struct size declared_frame_size;
     bool header_written;
 
-    sc_thread thread;
-    sc_mutex mutex;
-    sc_cond queue_cond;
-    bool stopped; // set on recorder_close()
+    SDL_Thread *thread;
+    SDL_mutex *mutex;
+    SDL_cond *queue_cond;
+    bool stopped; // set on recorder_stop() by the stream reader
     bool failed; // set on packet write failure
     struct recorder_queue queue;
 
@@ -49,4 +46,22 @@ recorder_init(struct recorder *recorder, const char *filename,
 void
 recorder_destroy(struct recorder *recorder);
 
+bool
+recorder_open(struct recorder *recorder, const AVCodec *input_codec);
+
+void
+recorder_close(struct recorder *recorder);
+
+bool
+recorder_start(struct recorder *recorder);
+
+void
+recorder_stop(struct recorder *recorder);
+
+void
+recorder_join(struct recorder *recorder);
+
+bool
+recorder_push(struct recorder *recorder, const AVPacket *packet);
+
 #endif

app/src/scrcpy.c

@@ -13,6 +13,10 @@
 # include <windows.h>
 #endif
 
+#include "config.h"
+#include "command.h"
+#include "common.h"
+#include "compat.h"
 #include "controller.h"
 #include "decoder.h"
 #include "device.h"
@@ -25,12 +29,15 @@
 #include "server.h"
 #include "stream.h"
 #include "tiny_xpm.h"
+#include "video_buffer.h"
+#include "util/lock.h"
 #include "util/log.h"
 #include "util/net.h"
 
-static struct server server;
-static struct screen screen;
+static struct server server = SERVER_INITIALIZER;
+static struct screen screen = SCREEN_INITIALIZER;
 static struct fps_counter fps_counter;
+static struct video_buffer video_buffer;
 static struct stream stream;
 static struct decoder decoder;
 static struct recorder recorder;
@@ -39,7 +46,7 @@ static struct file_handler file_handler;
 
 static struct input_manager input_manager = {
     .controller = &controller,
-    .fps_counter = &fps_counter,
+    .video_buffer = &video_buffer,
     .screen = &screen,
     .repeat = 0,
 
@@ -171,37 +178,68 @@ handle_event(SDL_Event *event, const struct scrcpy_options *options) {
         case SDL_QUIT:
             LOGD("User requested to quit");
             return EVENT_RESULT_STOPPED_BY_USER;
+        case EVENT_NEW_FRAME:
+            if (!screen.has_frame) {
+                screen.has_frame = true;
+                // this is the very first frame, show the window
+                screen_show_window(&screen);
+            }
+            if (!screen_update_frame(&screen, &video_buffer)) {
+                return EVENT_RESULT_CONTINUE;
+            }
+            break;
+        case SDL_WINDOWEVENT:
+            screen_handle_window_event(&screen, &event->window);
+            break;
+        case SDL_TEXTINPUT:
+            if (!options->control) {
+                break;
+            }
+            input_manager_process_text_input(&input_manager, &event->text);
+            break;
+        case SDL_KEYDOWN:
+        case SDL_KEYUP:
+            // some key events do not interact with the device, so process the
+            // event even if control is disabled
+            input_manager_process_key(&input_manager, &event->key);
+            break;
+        case SDL_MOUSEMOTION:
+            if (!options->control) {
+                break;
+            }
+            input_manager_process_mouse_motion(&input_manager, &event->motion);
+            break;
+        case SDL_MOUSEWHEEL:
+            if (!options->control) {
+                break;
+            }
+            input_manager_process_mouse_wheel(&input_manager, &event->wheel);
+            break;
+        case SDL_MOUSEBUTTONDOWN:
+        case SDL_MOUSEBUTTONUP:
+            // some mouse events do not interact with the device, so process
+            // the event even if control is disabled
+            input_manager_process_mouse_button(&input_manager, &event->button);
+            break;
+        case SDL_FINGERMOTION:
+        case SDL_FINGERDOWN:
+        case SDL_FINGERUP:
+            input_manager_process_touch(&input_manager, &event->tfinger);
+            break;
         case SDL_DROPFILE: {
             if (!options->control) {
                 break;
             }
-            char *file = strdup(event->drop.file);
-            SDL_free(event->drop.file);
-            if (!file) {
-                LOGW("Could not strdup drop filename\n");
-                break;
-            }
-
             file_handler_action_t action;
-            if (is_apk(file)) {
+            if (is_apk(event->drop.file)) {
                 action = ACTION_INSTALL_APK;
             } else {
                 action = ACTION_PUSH_FILE;
             }
-            file_handler_request(&file_handler, action, file);
+            file_handler_request(&file_handler, action, event->drop.file);
             break;
         }
     }
-
-    bool consumed = screen_handle_event(&screen, event);
-    if (consumed) {
-        goto end;
-    }
-
-    consumed = input_manager_handle_event(&input_manager, event);
-    (void) consumed;
-
-end:
     return EVENT_RESULT_CONTINUE;
 }
 
@@ -252,7 +290,7 @@ av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
     if (priority == 0) {
         return;
     }
-    char *local_fmt = malloc(strlen(fmt) + 10);
+    char *local_fmt = SDL_malloc(strlen(fmt) + 10);
     if (!local_fmt) {
         LOGC("Could not allocate string");
         return;
@@ -261,26 +299,11 @@ av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
     strcpy(local_fmt, "[FFmpeg] ");
     strcpy(local_fmt + 9, fmt);
     SDL_LogMessageV(SDL_LOG_CATEGORY_VIDEO, priority, local_fmt, vl);
-    free(local_fmt);
+    SDL_free(local_fmt);
 }
 
 bool
 scrcpy(const struct scrcpy_options *options) {
-    if (!server_init(&server)) {
-        return false;
-    }
-
-    bool ret = false;
-
-    bool server_started = false;
-    bool fps_counter_initialized = false;
-    bool file_handler_initialized = false;
-    bool recorder_initialized = false;
-    bool stream_started = false;
-    bool controller_initialized = false;
-    bool controller_started = false;
-    bool screen_initialized = false;
-
     bool record = !!options->record_filename;
     struct server_params params = {
         .log_level = options->log_level,
@@ -297,13 +320,20 @@ scrcpy(const struct scrcpy_options *options) {
         .codec_options = options->codec_options,
         .encoder_name = options->encoder_name,
         .force_adb_forward = options->force_adb_forward,
-        .power_off_on_close = options->power_off_on_close,
     };
     if (!server_start(&server, options->serial, &params)) {
-        goto end;
+        return false;
     }
 
-    server_started = true;
+    bool ret = false;
+
+    bool fps_counter_initialized = false;
+    bool video_buffer_initialized = false;
+    bool file_handler_initialized = false;
+    bool recorder_initialized = false;
+    bool stream_started = false;
+    bool controller_initialized = false;
+    bool controller_started = false;
 
     if (!sdl_init_and_configure(options->display, options->render_driver,
                                 options->disable_screensaver)) {
@@ -331,6 +361,12 @@ scrcpy(const struct scrcpy_options *options) {
         }
         fps_counter_initialized = true;
 
+        if (!video_buffer_init(&video_buffer, &fps_counter,
+                               options->render_expired_frames)) {
+            goto end;
+        }
+        video_buffer_initialized = true;
+
         if (options->control) {
             if (!file_handler_init(&file_handler, server.serial,
                                    options->push_target)) {
@@ -339,7 +375,7 @@ scrcpy(const struct scrcpy_options *options) {
             file_handler_initialized = true;
         }
 
-        decoder_init(&decoder);
+        decoder_init(&decoder, &video_buffer);
         dec = &decoder;
     }
 
@@ -357,15 +393,14 @@ scrcpy(const struct scrcpy_options *options) {
 
     av_log_set_callback(av_log_callback);
 
-    stream_init(&stream, server.video_socket);
+    stream_init(&stream, server.video_socket, dec, rec);
 
-    if (dec) {
-        stream_add_sink(&stream, &dec->packet_sink);
-    }
-
-    if (rec) {
-        stream_add_sink(&stream, &rec->packet_sink);
+    // now we consumed the header values, the socket receives the video stream
+    // start the stream
+    if (!stream_start(&stream)) {
+        goto end;
     }
+    stream_started = true;
 
     if (options->display) {
         if (options->control) {
@@ -383,25 +418,14 @@ scrcpy(const struct scrcpy_options *options) {
         const char *window_title =
             options->window_title ? options->window_title : device_name;
 
-        struct screen_params screen_params = {
-            .window_title = window_title,
-            .frame_size = frame_size,
-            .always_on_top = options->always_on_top,
-            .window_x = options->window_x,
-            .window_y = options->window_y,
-            .window_width = options->window_width,
-            .window_height = options->window_height,
-            .window_borderless = options->window_borderless,
-            .rotation = options->rotation,
-            .mipmaps = options->mipmaps,
-        };
-
-        if (!screen_init(&screen, &fps_counter, &screen_params)) {
+        if (!screen_init_rendering(&screen, window_title, frame_size,
+                                   options->always_on_top, options->window_x,
+                                   options->window_y, options->window_width,
+                                   options->window_height,
+                                   options->window_borderless,
+                                   options->rotation, options->mipmaps)) {
             goto end;
         }
-        screen_initialized = true;
-
-        decoder_add_sink(&decoder, &screen.frame_sink);
 
         if (options->turn_screen_off) {
             struct control_msg msg;
@@ -418,21 +442,19 @@ scrcpy(const struct scrcpy_options *options) {
         }
     }
 
-    // now we consumed the header values, the socket receives the video stream
-    // start the stream
-    if (!stream_start(&stream)) {
-        goto end;
-    }
-    stream_started = true;
-
     input_manager_init(&input_manager, options);
 
     ret = event_loop(options);
     LOGD("quit...");
 
+    screen_destroy(&screen);
+
 end:
-    // The stream is not stopped explicitly, because it will stop by itself on
-    // end-of-stream
+    // stop stream and controller so that they don't continue once their socket
+    // is shutdown
+    if (stream_started) {
+        stream_stop(&stream);
+    }
     if (controller_started) {
         controller_stop(&controller);
     }
@@ -443,23 +465,14 @@ end:
         fps_counter_interrupt(&fps_counter);
     }
 
-    if (server_started) {
-        // shutdown the sockets and kill the server
-        server_stop(&server);
-    }
+    // shutdown the sockets and kill the server
+    server_stop(&server);
 
     // now that the sockets are shutdown, the stream and controller are
     // interrupted, we can join them
     if (stream_started) {
         stream_join(&stream);
     }
-
-    // Destroy the screen only after the stream is guaranteed to be finished,
-    // because otherwise the screen could receive new frames after destruction
-    if (screen_initialized) {
-        screen_destroy(&screen);
-    }
-
     if (controller_started) {
         controller_join(&controller);
     }
@@ -476,6 +489,10 @@ end:
         file_handler_destroy(&file_handler);
     }
 
+    if (video_buffer_initialized) {
+        video_buffer_destroy(&video_buffer);
+    }
+
     if (fps_counter_initialized) {
         fps_counter_join(&fps_counter);
         fps_counter_destroy(&fps_counter);

app/src/scrcpy.h

@@ -1,12 +1,12 @@
 #ifndef SCRCPY_H
 #define SCRCPY_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
+#include "config.h"
+
 enum sc_log_level {
     SC_LOG_LEVEL_DEBUG,
     SC_LOG_LEVEL_INFO,
@@ -65,13 +65,14 @@ struct scrcpy_options {
     int16_t window_y; // SC_WINDOW_POSITION_UNDEFINED for "auto"
     uint16_t window_width;
     uint16_t window_height;
-    uint32_t display_id;
+    uint16_t display_id;
     bool show_touches;
     bool fullscreen;
     bool always_on_top;
     bool control;
     bool display;
     bool turn_screen_off;
+    bool render_expired_frames;
     bool prefer_text;
     bool window_borderless;
     bool mipmaps;
@@ -81,7 +82,6 @@ struct scrcpy_options {
     bool forward_key_repeat;
     bool forward_all_clicks;
     bool legacy_paste;
-    bool power_off_on_close;
 };
 
 #define SCRCPY_OPTIONS_DEFAULT { \
@@ -103,10 +103,10 @@ struct scrcpy_options {
         .data = {SC_MOD_LALT, SC_MOD_LSUPER}, \
         .count = 2, \
     }, \
-    .max_size = 0, \
+    .max_size = DEFAULT_MAX_SIZE, \
     .bit_rate = DEFAULT_BIT_RATE, \
     .max_fps = 0, \
-    .lock_video_orientation = -1, \
+    .lock_video_orientation = DEFAULT_LOCK_VIDEO_ORIENTATION, \
     .rotation = 0, \
     .window_x = SC_WINDOW_POSITION_UNDEFINED, \
     .window_y = SC_WINDOW_POSITION_UNDEFINED, \
@@ -119,6 +119,7 @@ struct scrcpy_options {
     .control = true, \
     .display = true, \
     .turn_screen_off = false, \
+    .render_expired_frames = false, \
     .prefer_text = false, \
     .window_borderless = false, \
     .mipmaps = true, \
@@ -128,7 +129,6 @@ struct scrcpy_options {
     .forward_key_repeat = true, \
     .forward_all_clicks = false, \
     .legacy_paste = false, \
-    .power_off_on_close = false, \
 }
 
 bool

app/src/screen.c

@@ -4,17 +4,18 @@
 #include <string.h>
 #include <SDL2/SDL.h>
 
-#include "events.h"
+#include "config.h"
+#include "common.h"
+#include "compat.h"
 #include "icon.xpm"
 #include "scrcpy.h"
 #include "tiny_xpm.h"
 #include "video_buffer.h"
+#include "util/lock.h"
 #include "util/log.h"
 
 #define DISPLAY_MARGINS 96
 
-#define DOWNCAST(SINK) container_of(SINK, struct screen, frame_sink)
-
 static inline struct size
 get_rotated_size(struct size size, int rotation) {
     struct size rotated_size;
@@ -193,6 +194,11 @@ screen_update_content_rect(struct screen *screen) {
     }
 }
 
+void
+screen_init(struct screen *screen) {
+    *screen = (struct screen) SCREEN_INITIALIZER;
+}
+
 static inline SDL_Texture *
 create_texture(struct screen *screen) {
     SDL_Renderer *renderer = screen->renderer;
@@ -220,87 +226,27 @@ create_texture(struct screen *screen) {
     return texture;
 }
 
-static bool
-screen_frame_sink_open(struct sc_frame_sink *sink) {
-    struct screen *screen = DOWNCAST(sink);
-    (void) screen;
-#ifndef NDEBUG
-    screen->open = true;
-#endif
-
-    // nothing to do, the screen is already open on the main thread
-    return true;
-}
-
-static void
-screen_frame_sink_close(struct sc_frame_sink *sink) {
-    struct screen *screen = DOWNCAST(sink);
-    (void) screen;
-#ifndef NDEBUG
-    screen->open = false;
-#endif
-
-    // nothing to do, the screen lifecycle is not managed by the frame producer
-}
-
-static bool
-screen_frame_sink_push(struct sc_frame_sink *sink, const AVFrame *frame) {
-    struct screen *screen = DOWNCAST(sink);
-
-    bool previous_frame_skipped;
-    bool ok = video_buffer_push(&screen->vb, frame, &previous_frame_skipped);
-    if (!ok) {
-        return false;
-    }
-
-    if (previous_frame_skipped) {
-        fps_counter_add_skipped_frame(screen->fps_counter);
-        // The EVENT_NEW_FRAME triggered for the previous frame will consume
-        // this new frame instead
-    } else {
-        static SDL_Event new_frame_event = {
-            .type = EVENT_NEW_FRAME,
-        };
-
-        // Post the event on the UI thread
-        SDL_PushEvent(&new_frame_event);
-    }
-
-    return true;
-}
-
 bool
-screen_init(struct screen *screen, struct fps_counter *fps_counter,
-            const struct screen_params *params) {
-    screen->fps_counter = fps_counter;
-
-    screen->resize_pending = false;
-    screen->has_frame = false;
-    screen->fullscreen = false;
-    screen->maximized = false;
-
-    bool ok = video_buffer_init(&screen->vb);
-    if (!ok) {
-        LOGE("Could not initialize video buffer");
-        return false;
+screen_init_rendering(struct screen *screen, const char *window_title,
+                      struct size frame_size, bool always_on_top,
+                      int16_t window_x, int16_t window_y, uint16_t window_width,
+                      uint16_t window_height, bool window_borderless,
+                      uint8_t rotation, bool mipmaps) {
+    screen->frame_size = frame_size;
+    screen->rotation = rotation;
+    if (rotation) {
+        LOGI("Initial display rotation set to %u", rotation);
     }
-
-    screen->frame_size = params->frame_size;
-    screen->rotation = params->rotation;
-    if (screen->rotation) {
-        LOGI("Initial display rotation set to %u", screen->rotation);
-    }
-    struct size content_size =
-        get_rotated_size(screen->frame_size, screen->rotation);
+    struct size content_size = get_rotated_size(frame_size, screen->rotation);
     screen->content_size = content_size;
 
-    struct size window_size = get_initial_optimal_size(content_size,
-                                                       params->window_width,
-                                                       params->window_height);
-    uint32_t window_flags = SDL_WINDOW_HIDDEN
-                          | SDL_WINDOW_RESIZABLE
-                          | SDL_WINDOW_ALLOW_HIGHDPI;
-    if (params->always_on_top) {
+    struct size window_size =
+        get_initial_optimal_size(content_size, window_width, window_height);
+    uint32_t window_flags = SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE;
+#ifdef HIDPI_SUPPORT
+    window_flags |= SDL_WINDOW_ALLOW_HIGHDPI;
+#endif
+    if (always_on_top) {
 #ifdef SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
         window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
 #else
@@ -308,15 +254,15 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
              "(compile with SDL >= 2.0.5 to enable it)");
 #endif
     }
-    if (params->window_borderless) {
+    if (window_borderless) {
         window_flags |= SDL_WINDOW_BORDERLESS;
     }
 
-    int x = params->window_x != SC_WINDOW_POSITION_UNDEFINED
-          ? params->window_x : (int) SDL_WINDOWPOS_UNDEFINED;
-    int y = params->window_y != SC_WINDOW_POSITION_UNDEFINED
-          ? params->window_y : (int) SDL_WINDOWPOS_UNDEFINED;
-    screen->window = SDL_CreateWindow(params->window_title, x, y,
+    int x = window_x != SC_WINDOW_POSITION_UNDEFINED
+          ? window_x : (int) SDL_WINDOWPOS_UNDEFINED;
+    int y = window_y != SC_WINDOW_POSITION_UNDEFINED
+          ? window_y : (int) SDL_WINDOWPOS_UNDEFINED;
+    screen->window = SDL_CreateWindow(window_title, x, y,
                                       window_size.width, window_size.height,
                                       window_flags);
     if (!screen->window) {
@@ -328,8 +274,7 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
                                           SDL_RENDERER_ACCELERATED);
     if (!screen->renderer) {
         LOGC("Could not create renderer: %s", SDL_GetError());
-        SDL_DestroyWindow(screen->window);
-        video_buffer_destroy(&screen->vb);
+        screen_destroy(screen);
         return false;
     }
 
@@ -338,17 +283,15 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
     const char *renderer_name = r ? NULL : renderer_info.name;
     LOGI("Renderer: %s", renderer_name ? renderer_name : "(unknown)");
 
-    screen->mipmaps = false;
-
     // starts with "opengl"
-    bool use_opengl = renderer_name && !strncmp(renderer_name, "opengl", 6);
-    if (use_opengl) {
+    screen->use_opengl = renderer_name && !strncmp(renderer_name, "opengl", 6);
+    if (screen->use_opengl) {
         struct sc_opengl *gl = &screen->gl;
         sc_opengl_init(gl);
 
         LOGI("OpenGL version: %s", gl->version);
 
-        if (params->mipmaps) {
+        if (mipmaps) {
             bool supports_mipmaps =
                 sc_opengl_version_at_least(gl, 3, 0, /* OpenGL 3.0+ */
                                                2, 0  /* OpenGL ES 2.0+ */);
@@ -362,7 +305,7 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
         } else {
             LOGI("Trilinear filtering disabled");
         }
-    } else if (params->mipmaps) {
+    } else {
         LOGD("Trilinear filtering disabled (not an OpenGL renderer)");
     }
 
@@ -374,24 +317,12 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
         LOGW("Could not load icon");
     }
 
-    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, params->frame_size.width,
-                                                  params->frame_size.height);
+    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width,
+                                                  frame_size.height);
     screen->texture = create_texture(screen);
     if (!screen->texture) {
         LOGC("Could not create texture: %s", SDL_GetError());
-        SDL_DestroyRenderer(screen->renderer);
-        SDL_DestroyWindow(screen->window);
-        video_buffer_destroy(&screen->vb);
-        return false;
-    }
-
-    screen->frame = av_frame_alloc();
-    if (!screen->frame) {
-        LOGC("Could not create screen frame");
-        SDL_DestroyTexture(screen->texture);
-        SDL_DestroyRenderer(screen->renderer);
-        SDL_DestroyWindow(screen->window);
-        video_buffer_destroy(&screen->vb);
+        screen_destroy(screen);
         return false;
     }
 
@@ -402,18 +333,6 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
 
     screen_update_content_rect(screen);
 
-    static const struct sc_frame_sink_ops ops = {
-        .open = screen_frame_sink_open,
-        .close = screen_frame_sink_close,
-        .push = screen_frame_sink_push,
-    };
-
-    screen->frame_sink.ops = &ops;
-
-#ifndef NDEBUG
-    screen->open = false;
-#endif
-
     return true;
 }
 
@@ -424,14 +343,15 @@ screen_show_window(struct screen *screen) {
 
 void
 screen_destroy(struct screen *screen) {
-#ifndef NDEBUG
-    assert(!screen->open);
-#endif
-    av_frame_free(&screen->frame);
-    SDL_DestroyTexture(screen->texture);
-    SDL_DestroyRenderer(screen->renderer);
-    SDL_DestroyWindow(screen->window);
-    video_buffer_destroy(&screen->vb);
+    if (screen->texture) {
+        SDL_DestroyTexture(screen->texture);
+    }
+    if (screen->renderer) {
+        SDL_DestroyRenderer(screen->renderer);
+    }
+    if (screen->window) {
+        SDL_DestroyWindow(screen->window);
+    }
 }
 
 static void
@@ -528,25 +448,24 @@ update_texture(struct screen *screen, const AVFrame *frame) {
             frame->data[2], frame->linesize[2]);
 
     if (screen->mipmaps) {
+        assert(screen->use_opengl);
         SDL_GL_BindTexture(screen->texture, NULL, NULL);
         screen->gl.GenerateMipmap(GL_TEXTURE_2D);
         SDL_GL_UnbindTexture(screen->texture);
     }
 }
 
-static bool
-screen_update_frame(struct screen *screen) {
-    av_frame_unref(screen->frame);
-    video_buffer_consume(&screen->vb, screen->frame);
-    AVFrame *frame = screen->frame;
-
-    fps_counter_add_rendered_frame(screen->fps_counter);
-
+bool
+screen_update_frame(struct screen *screen, struct video_buffer *vb) {
+    mutex_lock(vb->mutex);
+    const AVFrame *frame = video_buffer_consume_rendered_frame(vb);
     struct size new_frame_size = {frame->width, frame->height};
     if (!prepare_for_frame(screen, new_frame_size)) {
+        mutex_unlock(vb->mutex);
         return false;
     }
     update_texture(screen, frame);
+    mutex_unlock(vb->mutex);
 
     screen_render(screen, false);
     return true;
@@ -633,52 +552,31 @@ screen_resize_to_pixel_perfect(struct screen *screen) {
                                             content_size.height);
 }
 
-bool
-screen_handle_event(struct screen *screen, SDL_Event *event) {
-    switch (event->type) {
-        case EVENT_NEW_FRAME:
-            if (!screen->has_frame) {
-                screen->has_frame = true;
-                // this is the very first frame, show the window
-                screen_show_window(screen);
+void
+screen_handle_window_event(struct screen *screen,
+                           const SDL_WindowEvent *event) {
+    switch (event->event) {
+        case SDL_WINDOWEVENT_EXPOSED:
+            screen_render(screen, true);
+            break;
+        case SDL_WINDOWEVENT_SIZE_CHANGED:
+            screen_render(screen, true);
+            break;
+        case SDL_WINDOWEVENT_MAXIMIZED:
+            screen->maximized = true;
+            break;
+        case SDL_WINDOWEVENT_RESTORED:
+            if (screen->fullscreen) {
+                // On Windows, in maximized+fullscreen, disabling fullscreen
+                // mode unexpectedly triggers the "restored" then "maximized"
+                // events, leaving the window in a weird state (maximized
+                // according to the events, but not maximized visually).
+                break;
             }
-            bool ok = screen_update_frame(screen);
-            if (!ok) {
-                LOGW("Frame update failed\n");
-            }
-            return true;
-        case SDL_WINDOWEVENT:
-            if (!screen->has_frame) {
-                // Do nothing
-                return true;
-            }
-            switch (event->window.event) {
-                case SDL_WINDOWEVENT_EXPOSED:
-                    screen_render(screen, true);
-                    break;
-                case SDL_WINDOWEVENT_SIZE_CHANGED:
-                    screen_render(screen, true);
-                    break;
-                case SDL_WINDOWEVENT_MAXIMIZED:
-                    screen->maximized = true;
-                    break;
-                case SDL_WINDOWEVENT_RESTORED:
-                    if (screen->fullscreen) {
-                        // On Windows, in maximized+fullscreen, disabling
-                        // fullscreen mode unexpectedly triggers the "restored"
-                        // then "maximized" events, leaving the window in a
-                        // weird state (maximized according to the events, but
-                        // not maximized visually).
-                        break;
-                    }
-                    screen->maximized = false;
-                    apply_pending_resize(screen);
-                    break;
-            }
-            return true;
+            screen->maximized = false;
+            apply_pending_resize(screen);
+            break;
     }
-
-    return false;
 }
 
 struct point

app/src/screen.h

@@ -1,32 +1,21 @@
 #ifndef SCREEN_H
 #define SCREEN_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <SDL2/SDL.h>
 #include <libavformat/avformat.h>
 
-#include "coords.h"
+#include "config.h"
+#include "common.h"
 #include "opengl.h"
-#include "trait/frame_sink.h"
-#include "video_buffer.h"
 
 struct video_buffer;
 
 struct screen {
-    struct sc_frame_sink frame_sink; // frame sink trait
-
-#ifndef NDEBUG
-    bool open; // track the open/close state to assert correct behavior
-#endif
-
-    struct video_buffer vb;
-    struct fps_counter *fps_counter;
-
     SDL_Window *window;
     SDL_Renderer *renderer;
     SDL_Texture *texture;
+    bool use_opengl;
     struct sc_opengl gl;
     struct size frame_size;
     struct size content_size; // rotated frame_size
@@ -43,31 +32,55 @@ struct screen {
     bool has_frame;
     bool fullscreen;
     bool maximized;
-    bool mipmaps;
-
-    AVFrame *frame;
-};
-
-struct screen_params {
-    const char *window_title;
-    struct size frame_size;
-    bool always_on_top;
-
-    int16_t window_x;
-    int16_t window_y;
-    uint16_t window_width;  // accepts SC_WINDOW_POSITION_UNDEFINED
-    uint16_t window_height; // accepts SC_WINDOW_POSITION_UNDEFINED
-
-    bool window_borderless;
-
-    uint8_t rotation;
+    bool no_window;
     bool mipmaps;
 };
 
+#define SCREEN_INITIALIZER { \
+    .window = NULL, \
+    .renderer = NULL, \
+    .texture = NULL, \
+    .use_opengl = false, \
+    .gl = {0}, \
+    .frame_size = { \
+        .width = 0, \
+        .height = 0, \
+    }, \
+    .content_size = { \
+        .width = 0, \
+        .height = 0, \
+    }, \
+    .resize_pending = false, \
+    .windowed_content_size = { \
+        .width = 0, \
+        .height = 0, \
+    }, \
+    .rotation = 0, \
+    .rect = { \
+        .x = 0, \
+        .y = 0, \
+        .w = 0, \
+        .h = 0, \
+    }, \
+    .has_frame = false, \
+    .fullscreen = false, \
+    .maximized = false, \
+    .no_window = false, \
+    .mipmaps = false, \
+}
+
+// initialize default values
+void
+screen_init(struct screen *screen);
+
 // initialize screen, create window, renderer and texture (window is hidden)
+// window_x and window_y accept SC_WINDOW_POSITION_UNDEFINED
 bool
-screen_init(struct screen *screen, struct fps_counter *fps_counter,
-            const struct screen_params *params);
+screen_init_rendering(struct screen *screen, const char *window_title,
+                      struct size frame_size, bool always_on_top,
+                      int16_t window_x, int16_t window_y, uint16_t window_width,
+                      uint16_t window_height, bool window_borderless,
+                      uint8_t rotation, bool mipmaps);
 
 // show the window
 void
@@ -77,6 +90,10 @@ screen_show_window(struct screen *screen);
 void
 screen_destroy(struct screen *screen);
 
+// resize if necessary and write the rendered frame into the texture
+bool
+screen_update_frame(struct screen *screen, struct video_buffer *vb);
+
 // render the texture to the renderer
 //
 // Set the update_content_rect flag if the window or content size may have
@@ -100,9 +117,9 @@ screen_resize_to_pixel_perfect(struct screen *screen);
 void
 screen_set_rotation(struct screen *screen, unsigned rotation);
 
-// react to SDL events
-bool
-screen_handle_event(struct screen *screen, SDL_Event *event);
+// react to window events
+void
+screen_handle_window_event(struct screen *screen, const SDL_WindowEvent *event);
 
 // convert point from window coordinates to frame coordinates
 // x and y are expressed in pixels

app/src/server.c

@@ -5,10 +5,12 @@
 #include <inttypes.h>
 #include <libgen.h>
 #include <stdio.h>
+#include <SDL2/SDL_thread.h>
 #include <SDL2/SDL_timer.h>
 #include <SDL2/SDL_platform.h>
 
-#include "adb.h"
+#include "config.h"
+#include "command.h"
 #include "util/log.h"
 #include "util/net.h"
 #include "util/str_util.h"
@@ -31,7 +33,7 @@ get_server_path(void) {
 #ifdef __WINDOWS__
         char *server_path = utf8_from_wide_char(server_path_env);
 #else
-        char *server_path = strdup(server_path_env);
+        char *server_path = SDL_strdup(server_path_env);
 #endif
         if (!server_path) {
             LOGE("Could not allocate memory");
@@ -43,7 +45,7 @@ get_server_path(void) {
 
 #ifndef PORTABLE
     LOGD("Using server: " DEFAULT_SERVER_PATH);
-    char *server_path = strdup(DEFAULT_SERVER_PATH);
+    char *server_path = SDL_strdup(DEFAULT_SERVER_PATH);
     if (!server_path) {
         LOGE("Could not allocate memory");
         return NULL;
@@ -65,11 +67,11 @@ get_server_path(void) {
 
     // sizeof(SERVER_FILENAME) gives statically the size including the null byte
     size_t len = dirlen + 1 + sizeof(SERVER_FILENAME);
-    char *server_path = malloc(len);
+    char *server_path = SDL_malloc(len);
     if (!server_path) {
         LOGE("Could not alloc server path string, "
              "using " SERVER_FILENAME " from current directory");
-        free(executable_path);
+        SDL_free(executable_path);
         return SERVER_FILENAME;
     }
 
@@ -78,7 +80,7 @@ get_server_path(void) {
     memcpy(&server_path[dirlen + 1], SERVER_FILENAME, sizeof(SERVER_FILENAME));
     // the final null byte has been copied with SERVER_FILENAME
 
-    free(executable_path);
+    SDL_free(executable_path);
 
     LOGD("Using server (portable): %s", server_path);
     return server_path;
@@ -93,36 +95,36 @@ push_server(const char *serial) {
     }
     if (!is_regular_file(server_path)) {
         LOGE("'%s' does not exist or is not a regular file\n", server_path);
-        free(server_path);
+        SDL_free(server_path);
         return false;
     }
     process_t process = adb_push(serial, server_path, DEVICE_SERVER_PATH);
-    free(server_path);
-    return process_check_success(process, "adb push", true);
+    SDL_free(server_path);
+    return process_check_success(process, "adb push");
 }
 
 static bool
 enable_tunnel_reverse(const char *serial, uint16_t local_port) {
     process_t process = adb_reverse(serial, SOCKET_NAME, local_port);
-    return process_check_success(process, "adb reverse", true);
+    return process_check_success(process, "adb reverse");
 }
 
 static bool
 disable_tunnel_reverse(const char *serial) {
     process_t process = adb_reverse_remove(serial, SOCKET_NAME);
-    return process_check_success(process, "adb reverse --remove", true);
+    return process_check_success(process, "adb reverse --remove");
 }
 
 static bool
 enable_tunnel_forward(const char *serial, uint16_t local_port) {
     process_t process = adb_forward(serial, local_port, SOCKET_NAME);
-    return process_check_success(process, "adb forward", true);
+    return process_check_success(process, "adb forward");
 }
 
 static bool
 disable_tunnel_forward(const char *serial, uint16_t local_port) {
     process_t process = adb_forward_remove(serial, local_port);
-    return process_check_success(process, "adb forward --remove", true);
+    return process_check_success(process, "adb forward --remove");
 }
 
 static bool
@@ -255,12 +257,12 @@ execute_server(struct server *server, const struct server_params *params) {
     char bit_rate_string[11];
     char max_fps_string[6];
     char lock_video_orientation_string[5];
-    char display_id_string[11];
+    char display_id_string[6];
     sprintf(max_size_string, "%"PRIu16, params->max_size);
     sprintf(bit_rate_string, "%"PRIu32, params->bit_rate);
     sprintf(max_fps_string, "%"PRIu16, params->max_fps);
     sprintf(lock_video_orientation_string, "%"PRIi8, params->lock_video_orientation);
-    sprintf(display_id_string, "%"PRIu32, params->display_id);
+    sprintf(display_id_string, "%"PRIu16, params->display_id);
     const char *const cmd[] = {
         "shell",
         "CLASSPATH=" DEVICE_SERVER_PATH,
@@ -293,7 +295,6 @@ execute_server(struct server *server, const struct server_params *params) {
         params->stay_awake ? "true" : "false",
         params->codec_options ? params->codec_options : "-",
         params->encoder_name ? params->encoder_name : "-",
-        params->power_off_on_close ? "true" : "false",
     };
 #ifdef SERVER_DEBUGGER
     LOGI("Server debugger waiting for a client on device port "
@@ -352,48 +353,15 @@ close_socket(socket_t socket) {
     }
 }
 
-bool
+void
 server_init(struct server *server) {
-    server->serial = NULL;
-    server->process = PROCESS_NONE;
-    atomic_flag_clear_explicit(&server->server_socket_closed,
-                               memory_order_relaxed);
-
-    bool ok = sc_mutex_init(&server->mutex);
-    if (!ok) {
-        return false;
-    }
-
-    ok = sc_cond_init(&server->process_terminated_cond);
-    if (!ok) {
-        sc_mutex_destroy(&server->mutex);
-        return false;
-    }
-
-    server->process_terminated = false;
-
-    server->server_socket = INVALID_SOCKET;
-    server->video_socket = INVALID_SOCKET;
-    server->control_socket = INVALID_SOCKET;
-
-    server->local_port = 0;
-
-    server->tunnel_enabled = false;
-    server->tunnel_forward = false;
-
-    return true;
+    *server = (struct server) SERVER_INITIALIZER;
 }
 
 static int
 run_wait_server(void *data) {
     struct server *server = data;
-    process_wait(server->process, false); // ignore exit code
-
-    sc_mutex_lock(&server->mutex);
-    server->process_terminated = true;
-    sc_cond_signal(&server->process_terminated_cond);
-    sc_mutex_unlock(&server->mutex);
-
+    cmd_simple_wait(server->process, NULL); // ignore exit code
     // no need for synchronization, server_socket is initialized before this
     // thread was created
     if (server->server_socket != INVALID_SOCKET
@@ -409,8 +377,10 @@ run_wait_server(void *data) {
 bool
 server_start(struct server *server, const char *serial,
              const struct server_params *params) {
+    server->port_range = params->port_range;
+
     if (serial) {
-        server->serial = strdup(serial);
+        server->serial = SDL_strdup(serial);
         if (!server->serial) {
             return false;
         }
@@ -437,11 +407,11 @@ server_start(struct server *server, const char *serial,
     // things simple and multiplatform, just spawn a new thread waiting for the
     // server process and calling shutdown()/close() on the server socket if
     // necessary to wake up any accept() blocking call.
-    bool ok = sc_thread_create(&server->wait_server_thread, run_wait_server,
-                               "wait-server", server);
-    if (!ok) {
-        process_terminate(server->process);
-        process_wait(server->process, true); // ignore exit code
+    server->wait_server_thread =
+        SDL_CreateThread(run_wait_server, "wait-server", server);
+    if (!server->wait_server_thread) {
+        cmd_terminate(server->process);
+        cmd_simple_wait(server->process, NULL); // ignore exit code
         goto error2;
     }
 
@@ -460,7 +430,7 @@ error2:
     }
     disable_tunnel(server);
 error1:
-    free(server->serial);
+    SDL_free(server->serial);
     return false;
 }
 
@@ -523,39 +493,17 @@ server_stop(struct server *server) {
 
     assert(server->process != PROCESS_NONE);
 
+    cmd_terminate(server->process);
+
     if (server->tunnel_enabled) {
         // ignore failure
         disable_tunnel(server);
     }
 
-    // Give some delay for the server to terminate properly
-    sc_mutex_lock(&server->mutex);
-    bool signaled = false;
-    if (!server->process_terminated) {
-#define WATCHDOG_DELAY_MS 1000
-        signaled = sc_cond_timedwait(&server->process_terminated_cond,
-                                     &server->mutex,
-                                     WATCHDOG_DELAY_MS);
-    }
-    sc_mutex_unlock(&server->mutex);
-
-    // After this delay, kill the server if it's not dead already.
-    // On some devices, closing the sockets is not sufficient to wake up the
-    // blocking calls while the device is asleep.
-    if (!signaled) {
-        // The process is terminated, but not reaped (closed) yet, so its PID
-        // is still valid.
-        LOGW("Killing the server...");
-        process_terminate(server->process);
-    }
-
-    sc_thread_join(&server->wait_server_thread, NULL);
-    process_close(server->process);
+    SDL_WaitThread(server->wait_server_thread, NULL);
 }
 
 void
 server_destroy(struct server *server) {
-    free(server->serial);
-    sc_cond_destroy(&server->process_terminated_cond);
-    sc_mutex_destroy(&server->mutex);
+    SDL_free(server->serial);
 }

app/src/server.h

@@ -1,36 +1,49 @@
 #ifndef SERVER_H
 #define SERVER_H
 
-#include "common.h"
-
 #include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
+#include <SDL2/SDL_thread.h>
 
-#include "adb.h"
+#include "config.h"
+#include "command.h"
+#include "common.h"
 #include "scrcpy.h"
 #include "util/log.h"
 #include "util/net.h"
-#include "util/thread.h"
 
 struct server {
     char *serial;
     process_t process;
-    sc_thread wait_server_thread;
+    SDL_Thread *wait_server_thread;
     atomic_flag server_socket_closed;
-
-    sc_mutex mutex;
-    sc_cond process_terminated_cond;
-    bool process_terminated;
-
     socket_t server_socket; // only used if !tunnel_forward
     socket_t video_socket;
     socket_t control_socket;
+    struct sc_port_range port_range;
     uint16_t local_port; // selected from port_range
     bool tunnel_enabled;
     bool tunnel_forward; // use "adb forward" instead of "adb reverse"
 };
 
+#define SERVER_INITIALIZER { \
+    .serial = NULL, \
+    .process = PROCESS_NONE, \
+    .wait_server_thread = NULL, \
+    .server_socket_closed = ATOMIC_FLAG_INIT, \
+    .server_socket = INVALID_SOCKET, \
+    .video_socket = INVALID_SOCKET, \
+    .control_socket = INVALID_SOCKET, \
+    .port_range = { \
+        .first = 0, \
+        .last = 0, \
+    }, \
+    .local_port = 0, \
+    .tunnel_enabled = false, \
+    .tunnel_forward = false, \
+}
+
 struct server_params {
     enum sc_log_level log_level;
     const char *crop;
@@ -42,15 +55,14 @@ struct server_params {
     uint16_t max_fps;
     int8_t lock_video_orientation;
     bool control;
-    uint32_t display_id;
+    uint16_t display_id;
     bool show_touches;
     bool stay_awake;
     bool force_adb_forward;
-    bool power_off_on_close;
 };
 
 // init default values
-bool
+void
 server_init(struct server *server);
 
 // push, enable tunnel et start the server

app/src/stream.c

@@ -4,8 +4,12 @@
 #include <libavformat/avformat.h>
 #include <libavutil/time.h>
 #include <SDL2/SDL_events.h>
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_thread.h>
 #include <unistd.h>
 
+#include "config.h"
+#include "compat.h"
 #include "decoder.h"
 #include "events.h"
 #include "recorder.h"
@@ -66,11 +70,25 @@ notify_stopped(void) {
 }
 
 static bool
-push_packet_to_sinks(struct stream *stream, const AVPacket *packet) {
-    for (unsigned i = 0; i < stream->sink_count; ++i) {
-        struct sc_packet_sink *sink = stream->sinks[i];
-        if (!sink->ops->push(sink, packet)) {
-            LOGE("Could not send config packet to sink %d", i);
+process_config_packet(struct stream *stream, AVPacket *packet) {
+    if (stream->recorder && !recorder_push(stream->recorder, packet)) {
+        LOGE("Could not send config packet to recorder");
+        return false;
+    }
+    return true;
+}
+
+static bool
+process_frame(struct stream *stream, AVPacket *packet) {
+    if (stream->decoder && !decoder_push(stream->decoder, packet)) {
+        return false;
+    }
+
+    if (stream->recorder) {
+        packet->dts = packet->pts;
+
+        if (!recorder_push(stream->recorder, packet)) {
+            LOGE("Could not send packet to recorder");
             return false;
         }
     }
@@ -97,11 +115,9 @@ stream_parse(struct stream *stream, AVPacket *packet) {
         packet->flags |= AV_PKT_FLAG_KEY;
     }
 
-    packet->dts = packet->pts;
-
-    bool ok = push_packet_to_sinks(stream, packet);
+    bool ok = process_frame(stream, packet);
     if (!ok) {
-        LOGE("Could not process packet");
+        LOGE("Could not process frame");
         return false;
     }
 
@@ -144,7 +160,7 @@ stream_push_packet(struct stream *stream, AVPacket *packet) {
 
     if (is_config) {
         // config packet
-        bool ok = push_packet_to_sinks(stream, packet);
+        bool ok = process_config_packet(stream, packet);
         if (!ok) {
             return false;
         }
@@ -165,33 +181,6 @@ stream_push_packet(struct stream *stream, AVPacket *packet) {
     return true;
 }
 
-static void
-stream_close_first_sinks(struct stream *stream, unsigned count) {
-    while (count) {
-        struct sc_packet_sink *sink = stream->sinks[--count];
-        sink->ops->close(sink);
-    }
-}
-
-static inline void
-stream_close_sinks(struct stream *stream) {
-    stream_close_first_sinks(stream, stream->sink_count);
-}
-
-static bool
-stream_open_sinks(struct stream *stream, const AVCodec *codec) {
-    for (unsigned i = 0; i < stream->sink_count; ++i) {
-        struct sc_packet_sink *sink = stream->sinks[i];
-        if (!sink->ops->open(sink, codec)) {
-            LOGE("Could not open packet sink %d", i);
-            stream_close_first_sinks(stream, i);
-            return false;
-        }
-    }
-
-    return true;
-}
-
 static int
 run_stream(void *data) {
     struct stream *stream = data;
@@ -208,15 +197,27 @@ run_stream(void *data) {
         goto end;
     }
 
-    if (!stream_open_sinks(stream, codec)) {
-        LOGE("Could not open stream sinks");
+    if (stream->decoder && !decoder_open(stream->decoder, codec)) {
+        LOGE("Could not open decoder");
         goto finally_free_codec_ctx;
     }
 
+    if (stream->recorder) {
+        if (!recorder_open(stream->recorder, codec)) {
+            LOGE("Could not open recorder");
+            goto finally_close_decoder;
+        }
+
+        if (!recorder_start(stream->recorder)) {
+            LOGE("Could not start recorder");
+            goto finally_close_recorder;
+        }
+    }
+
     stream->parser = av_parser_init(AV_CODEC_ID_H264);
     if (!stream->parser) {
         LOGE("Could not initialize parser");
-        goto finally_close_sinks;
+        goto finally_stop_and_join_recorder;
     }
 
     // We must only pass complete frames to av_parser_parse2()!
@@ -246,8 +247,20 @@ run_stream(void *data) {
     }
 
     av_parser_close(stream->parser);
-finally_close_sinks:
-    stream_close_sinks(stream);
+finally_stop_and_join_recorder:
+    if (stream->recorder) {
+        recorder_stop(stream->recorder);
+        LOGI("Finishing recording...");
+        recorder_join(stream->recorder);
+    }
+finally_close_recorder:
+    if (stream->recorder) {
+        recorder_close(stream->recorder);
+    }
+finally_close_decoder:
+    if (stream->decoder) {
+        decoder_close(stream->decoder);
+    }
 finally_free_codec_ctx:
     avcodec_free_context(&stream->codec_ctx);
 end:
@@ -256,26 +269,20 @@ end:
 }
 
 void
-stream_init(struct stream *stream, socket_t socket) {
+stream_init(struct stream *stream, socket_t socket,
+            struct decoder *decoder, struct recorder *recorder) {
     stream->socket = socket;
+    stream->decoder = decoder,
+    stream->recorder = recorder;
     stream->has_pending = false;
-    stream->sink_count = 0;
-}
-
-void
-stream_add_sink(struct stream *stream, struct sc_packet_sink *sink) {
-    assert(stream->sink_count < STREAM_MAX_SINKS);
-    assert(sink);
-    assert(sink->ops);
-    stream->sinks[stream->sink_count++] = sink;
 }
 
 bool
 stream_start(struct stream *stream) {
     LOGD("Starting stream thread");
 
-    bool ok = sc_thread_create(&stream->thread, run_stream, "stream", stream);
-    if (!ok) {
+    stream->thread = SDL_CreateThread(run_stream, "stream", stream);
+    if (!stream->thread) {
         LOGC("Could not start stream thread");
         return false;
     }
@@ -283,6 +290,13 @@ stream_start(struct stream *stream) {
 }
 
 void
-stream_join(struct stream *stream) {
-    sc_thread_join(&stream->thread, NULL);
+stream_stop(struct stream *stream) {
+    if (stream->decoder) {
+        decoder_interrupt(stream->decoder);
+    }
+}
+
+void
+stream_join(struct stream *stream) {
+    SDL_WaitThread(stream->thread, NULL);
 }

app/src/stream.h

@@ -1,26 +1,22 @@
 #ifndef STREAM_H
 #define STREAM_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <stdint.h>
 #include <libavformat/avformat.h>
 #include <SDL2/SDL_atomic.h>
+#include <SDL2/SDL_thread.h>
 
-#include "trait/packet_sink.h"
+#include "config.h"
 #include "util/net.h"
-#include "util/thread.h"
 
-#define STREAM_MAX_SINKS 2
+struct video_buffer;
 
 struct stream {
     socket_t socket;
-    sc_thread thread;
-
-    struct sc_packet_sink *sinks[STREAM_MAX_SINKS];
-    unsigned sink_count;
-
+    SDL_Thread *thread;
+    struct decoder *decoder;
+    struct recorder *recorder;
     AVCodecContext *codec_ctx;
     AVCodecParserContext *parser;
     // successive packets may need to be concatenated, until a non-config
@@ -30,14 +26,15 @@ struct stream {
 };
 
 void
-stream_init(struct stream *stream, socket_t socket);
-
-void
-stream_add_sink(struct stream *stream, struct sc_packet_sink *sink);
+stream_init(struct stream *stream, socket_t socket,
+            struct decoder *decoder, struct recorder *recorder);
 
 bool
 stream_start(struct stream *stream);
 
+void
+stream_stop(struct stream *stream);
+
 void
 stream_join(struct stream *stream);
 

app/src/sys/unix/command.c

@@ -1,4 +1,17 @@
-#include "util/process.h"
+// for portability (kill, readlink, strdup, strtok_r)
+#define _POSIX_C_SOURCE 200809L
+#define _BSD_SOURCE
+
+// modern glibc will complain without this
+#define _DEFAULT_SOURCE
+
+#ifdef __APPLE__
+# define _DARWIN_C_SOURCE // for strdup(), strtok_r(), memset_pattern4()
+#endif
+
+#include "command.h"
+
+#include "config.h"
 
 #include <errno.h>
 #include <fcntl.h>
@@ -8,13 +21,14 @@
 #include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
 #include "util/log.h"
 
 bool
-search_executable(const char *file) {
+cmd_search(const char *file) {
     char *path = getenv("PATH");
     if (!path)
         return false;
@@ -50,7 +64,7 @@ search_executable(const char *file) {
 }
 
 enum process_result
-process_execute(const char *const argv[], pid_t *pid) {
+cmd_execute(const char *const argv[], pid_t *pid) {
     int fd[2];
 
     if (pipe(fd) == -1) {
@@ -112,37 +126,29 @@ end:
 }
 
 bool
-process_terminate(pid_t pid) {
+cmd_terminate(pid_t pid) {
     if (pid <= 0) {
         LOGC("Requested to kill %d, this is an error. Please report the bug.\n",
              (int) pid);
         abort();
     }
-    return kill(pid, SIGKILL) != -1;
+    return kill(pid, SIGTERM) != -1;
 }
 
-exit_code_t
-process_wait(pid_t pid, bool close) {
+bool
+cmd_simple_wait(pid_t pid, int *exit_code) {
+    int status;
     int code;
-    int options = WEXITED;
-    if (!close) {
-        options |= WNOWAIT;
-    }
-
-    siginfo_t info;
-    int r = waitid(P_PID, pid, &info, options);
-    if (r == -1 || info.si_code != CLD_EXITED) {
+    if (waitpid(pid, &status, 0) == -1 || !WIFEXITED(status)) {
         // could not wait, or exited unexpectedly, probably by a signal
-        code = NO_EXIT_CODE;
+        code = -1;
     } else {
-        code = info.si_status;
+        code = WEXITSTATUS(status);
     }
-    return code;
-}
-
-void
-process_close(pid_t pid) {
-    process_wait(pid, true); // ignore exit code
+    if (exit_code) {
+        *exit_code = code;
+    }
+    return !code;
 }
 
 char *
@@ -156,7 +162,7 @@ get_executable_path(void) {
         return NULL;
     }
     buf[len] = '\0';
-    return strdup(buf);
+    return SDL_strdup(buf);
 #else
     // in practice, we only need this feature for portable builds, only used on
     // Windows, so we don't care implementing it for every platform

app/src/sys/win/command.c

@@ -1,8 +1,8 @@
-#include "util/process.h"
+#include "command.h"
 
-#include <assert.h>
 #include <sys/stat.h>
 
+#include "config.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
@@ -21,7 +21,7 @@ build_cmd(char *cmd, size_t len, const char *const argv[]) {
 }
 
 enum process_result
-process_execute(const char *const argv[], HANDLE *handle) {
+cmd_execute(const char *const argv[], HANDLE *handle) {
     STARTUPINFOW si;
     PROCESS_INFORMATION pi;
     memset(&si, 0, sizeof(si));
@@ -39,9 +39,14 @@ process_execute(const char *const argv[], HANDLE *handle) {
         return PROCESS_ERROR_GENERIC;
     }
 
-    if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, 0, NULL, NULL, &si,
+#ifdef WINDOWS_NOCONSOLE
+    int flags = CREATE_NO_WINDOW;
+#else
+    int flags = 0;
+#endif
+    if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, flags, NULL, NULL, &si,
                         &pi)) {
-        free(wide);
+        SDL_free(wide);
         *handle = NULL;
         if (GetLastError() == ERROR_FILE_NOT_FOUND) {
             return PROCESS_ERROR_MISSING_BINARY;
@@ -49,35 +54,28 @@ process_execute(const char *const argv[], HANDLE *handle) {
         return PROCESS_ERROR_GENERIC;
     }
 
-    free(wide);
+    SDL_free(wide);
     *handle = pi.hProcess;
     return PROCESS_SUCCESS;
 }
 
 bool
-process_terminate(HANDLE handle) {
-    return TerminateProcess(handle, 1);
+cmd_terminate(HANDLE handle) {
+    return TerminateProcess(handle, 1) && CloseHandle(handle);
 }
 
-exit_code_t
-process_wait(HANDLE handle, bool close) {
+bool
+cmd_simple_wait(HANDLE handle, DWORD *exit_code) {
     DWORD code;
     if (WaitForSingleObject(handle, INFINITE) != WAIT_OBJECT_0
             || !GetExitCodeProcess(handle, &code)) {
         // could not wait or retrieve the exit code
-        code = NO_EXIT_CODE; // max value, it's unsigned
+        code = -1; // max value, it's unsigned
     }
-    if (close) {
-        CloseHandle(handle);
+    if (exit_code) {
+        *exit_code = code;
     }
-    return code;
-}
-
-void
-process_close(HANDLE handle) {
-    bool closed = CloseHandle(handle);
-    assert(closed);
-    (void) closed;
+    return !code;
 }
 
 char *
@@ -105,7 +103,7 @@ is_regular_file(const char *path) {
 
     struct _stat path_stat;
     int r = _wstat(wide_path, &path_stat);
-    free(wide_path);
+    SDL_free(wide_path);
 
     if (r) {
         perror("stat");

app/src/tiny_xpm.c

@@ -6,6 +6,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "config.h"
 #include "util/log.h"
 
 struct index {

app/src/tiny_xpm.h

@@ -1,10 +1,10 @@
 #ifndef TINYXPM_H
 #define TINYXPM_H
 
-#include "common.h"
-
 #include <SDL2/SDL.h>
 
+#include "config.h"
+
 SDL_Surface *
 read_xpm(char *xpm[]);
 

app/src/trait/frame_sink.h

@@ -1,24 +0,0 @@
-#ifndef SC_FRAME_SINK
-#define SC_FRAME_SINK
-
-#include "common.h"
-
-#include <assert.h>
-#include <stdbool.h>
-
-/**
- * Frame sink trait.
- *
- * Component able to receive AVFrames should implement this trait.
- */
-struct sc_frame_sink {
-    const struct sc_frame_sink_ops *ops;
-};
-
-struct sc_frame_sink_ops {
-    bool (*open)(struct sc_frame_sink *sink);
-    void (*close)(struct sc_frame_sink *sink);
-    bool (*push)(struct sc_frame_sink *sink, const AVFrame *frame);
-};
-
-#endif

app/src/trait/packet_sink.h

@@ -1,25 +0,0 @@
-#ifndef SC_PACKET_SINK
-#define SC_PACKET_SINK
-
-#include "common.h"
-
-#include <assert.h>
-#include <stdbool.h>
-#include <libavcodec/avcodec.h>
-
-/**
- * Packet sink trait.
- *
- * Component able to receive AVPackets should implement this trait.
- */
-struct sc_packet_sink {
-    const struct sc_packet_sink_ops *ops;
-};
-
-struct sc_packet_sink_ops {
-    bool (*open)(struct sc_packet_sink *sink, const AVCodec *codec);
-    void (*close)(struct sc_packet_sink *sink);
-    bool (*push)(struct sc_packet_sink *sink, const AVPacket *packet);
-};
-
-#endif

app/src/util/buffer_util.h

@@ -1,11 +1,11 @@
 #ifndef BUFFER_UTIL_H
 #define BUFFER_UTIL_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <stdint.h>
 
+#include "config.h"
+
 static inline void
 buffer_write16be(uint8_t *buf, uint16_t value) {
     buf[0] = value >> 8;
@@ -33,7 +33,7 @@ buffer_read16be(const uint8_t *buf) {
 
 static inline uint32_t
 buffer_read32be(const uint8_t *buf) {
-    return ((uint32_t) buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
+    return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
 }
 
 static inline uint64_t

app/src/util/cbuf.h

@@ -2,11 +2,11 @@
 #ifndef CBUF_H
 #define CBUF_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <unistd.h>
 
+#include "config.h"
+
 // To define a circular buffer type of 20 ints:
 //     struct cbuf_int CBUF(int, 20);
 //

app/src/util/lock.h

@@ -0,0 +1,74 @@
+#ifndef LOCK_H
+#define LOCK_H
+
+#include <stdint.h>
+#include <SDL2/SDL_mutex.h>
+
+#include "config.h"
+#include "log.h"
+
+static inline void
+mutex_lock(SDL_mutex *mutex) {
+    int r = SDL_LockMutex(mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not lock mutex: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}
+
+static inline void
+mutex_unlock(SDL_mutex *mutex) {
+    int r = SDL_UnlockMutex(mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not unlock mutex: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}
+
+static inline void
+cond_wait(SDL_cond *cond, SDL_mutex *mutex) {
+    int r = SDL_CondWait(cond, mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not wait on condition: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}
+
+static inline int
+cond_wait_timeout(SDL_cond *cond, SDL_mutex *mutex, uint32_t ms) {
+    int r = SDL_CondWaitTimeout(cond, mutex, ms);
+#ifndef NDEBUG
+    if (r < 0) {
+        LOGC("Could not wait on condition with timeout: %s", SDL_GetError());
+        abort();
+    }
+#endif
+    return r;
+}
+
+static inline void
+cond_signal(SDL_cond *cond) {
+    int r = SDL_CondSignal(cond);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not signal a condition: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}
+
+#endif

app/src/util/net.c

@@ -3,6 +3,7 @@
 #include <stdio.h>
 #include <SDL2/SDL_platform.h>
 
+#include "config.h"
 #include "log.h"
 
 #ifdef __WINDOWS__

app/src/util/net.h

@@ -1,8 +1,6 @@
 #ifndef NET_H
 #define NET_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <stdint.h>
 #include <SDL2/SDL_platform.h>
@@ -19,6 +17,8 @@
   typedef int socket_t;
 #endif
 
+#include "config.h"
+
 bool
 net_init(void);
 

app/src/util/process.c

@@ -1,21 +0,0 @@
-#include "process.h"
-
-#include "log.h"
-
-bool
-process_check_success(process_t proc, const char *name, bool close) {
-    if (proc == PROCESS_NONE) {
-        LOGE("Could not execute \"%s\"", name);
-        return false;
-    }
-    exit_code_t exit_code = process_wait(proc, close);
-    if (exit_code) {
-        if (exit_code != NO_EXIT_CODE) {
-            LOGE("\"%s\" returned with value %" PRIexitcode, name, exit_code);
-        } else {
-            LOGE("\"%s\" exited unexpectedly", name);
-        }
-        return false;
-    }
-    return true;
-}

app/src/util/queue.h

@@ -2,12 +2,12 @@
 #ifndef QUEUE_H
 #define QUEUE_H
 
-#include "common.h"
-
 #include <assert.h>
 #include <stdbool.h>
 #include <stddef.h>
 
+#include "config.h"
+
 // To define a queue type of "struct foo":
 //    struct queue_foo QUEUE(struct foo);
 #define QUEUE(TYPE) { \

app/src/util/str_util.c

@@ -10,6 +10,10 @@
 # include <tchar.h>
 #endif
 
+#include <SDL2/SDL_stdinc.h>
+
+#include "config.h"
+
 size_t
 xstrncpy(char *dest, const char *src, size_t n) {
     size_t i;
@@ -47,7 +51,7 @@ truncated:
 char *
 strquote(const char *src) {
     size_t len = strlen(src);
-    char *quoted = malloc(len + 3);
+    char *quoted = SDL_malloc(len + 3);
     if (!quoted) {
         return NULL;
     }
@@ -165,7 +169,7 @@ utf8_to_wide_char(const char *utf8) {
         return NULL;
     }
 
-    wchar_t *wide = malloc(len * sizeof(wchar_t));
+    wchar_t *wide = SDL_malloc(len * sizeof(wchar_t));
     if (!wide) {
         return NULL;
     }
@@ -181,7 +185,7 @@ utf8_from_wide_char(const wchar_t *ws) {
         return NULL;
     }
 
-    char *utf8 = malloc(len);
+    char *utf8 = SDL_malloc(len);
     if (!utf8) {
         return NULL;
     }

app/src/util/str_util.h

@@ -1,11 +1,11 @@
 #ifndef STRUTIL_H
 #define STRUTIL_H
 
-#include "common.h"
-
 #include <stdbool.h>
 #include <stddef.h>
 
+#include "config.h"
+
 // like strncpy, except:
 //  - it copies at most n-1 chars
 //  - the dest string is nul-terminated

app/src/util/thread.c

@@ -1,160 +0,0 @@
-#include "thread.h"
-
-#include <assert.h>
-#include <SDL2/SDL_thread.h>
-
-#include "log.h"
-
-bool
-sc_thread_create(sc_thread *thread, sc_thread_fn fn, const char *name,
-                 void *userdata) {
-    SDL_Thread *sdl_thread = SDL_CreateThread(fn, name, userdata);
-    if (!sdl_thread) {
-        return false;
-    }
-
-    thread->thread = sdl_thread;
-    return true;
-}
-
-void
-sc_thread_join(sc_thread *thread, int *status) {
-    SDL_WaitThread(thread->thread, status);
-}
-
-bool
-sc_mutex_init(sc_mutex *mutex) {
-    SDL_mutex *sdl_mutex = SDL_CreateMutex();
-    if (!sdl_mutex) {
-        return false;
-    }
-
-    mutex->mutex = sdl_mutex;
-#ifndef NDEBUG
-    mutex->locker = 0;
-#endif
-    return true;
-}
-
-void
-sc_mutex_destroy(sc_mutex *mutex) {
-    SDL_DestroyMutex(mutex->mutex);
-}
-
-void
-sc_mutex_lock(sc_mutex *mutex) {
-    // SDL mutexes are recursive, but we don't want to use recursive mutexes
-    assert(!sc_mutex_held(mutex));
-    int r = SDL_LockMutex(mutex->mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not lock mutex: %s", SDL_GetError());
-        abort();
-    }
-
-    mutex->locker = sc_thread_get_id();
-#else
-    (void) r;
-#endif
-}
-
-void
-sc_mutex_unlock(sc_mutex *mutex) {
-#ifndef NDEBUG
-    assert(sc_mutex_held(mutex));
-    mutex->locker = 0;
-#endif
-    int r = SDL_UnlockMutex(mutex->mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not lock mutex: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-sc_thread_id
-sc_thread_get_id(void) {
-    return SDL_ThreadID();
-}
-
-#ifndef NDEBUG
-bool
-sc_mutex_held(struct sc_mutex *mutex) {
-    return mutex->locker == sc_thread_get_id();
-}
-#endif
-
-bool
-sc_cond_init(sc_cond *cond) {
-    SDL_cond *sdl_cond = SDL_CreateCond();
-    if (!sdl_cond) {
-        return false;
-    }
-
-    cond->cond = sdl_cond;
-    return true;
-}
-
-void
-sc_cond_destroy(sc_cond *cond) {
-    SDL_DestroyCond(cond->cond);
-}
-
-void
-sc_cond_wait(sc_cond *cond, sc_mutex *mutex) {
-    int r = SDL_CondWait(cond->cond, mutex->mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not wait on condition: %s", SDL_GetError());
-        abort();
-    }
-
-    mutex->locker = sc_thread_get_id();
-#else
-    (void) r;
-#endif
-}
-
-bool
-sc_cond_timedwait(sc_cond *cond, sc_mutex *mutex, uint32_t ms) {
-    int r = SDL_CondWaitTimeout(cond->cond, mutex->mutex, ms);
-#ifndef NDEBUG
-    if (r < 0) {
-        LOGC("Could not wait on condition with timeout: %s", SDL_GetError());
-        abort();
-    }
-
-    mutex->locker = sc_thread_get_id();
-#endif
-    assert(r == 0 || r == SDL_MUTEX_TIMEDOUT);
-    return r == 0;
-}
-
-void
-sc_cond_signal(sc_cond *cond) {
-    int r = SDL_CondSignal(cond->cond);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not signal a condition: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-void
-sc_cond_broadcast(sc_cond *cond) {
-    int r = SDL_CondBroadcast(cond->cond);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not broadcast a condition: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}

app/src/util/thread.h

@@ -1,81 +0,0 @@
-#ifndef SC_THREAD_H
-#define SC_THREAD_H
-
-#include "common.h"
-
-#include <stdbool.h>
-#include <stdint.h>
-
-/* Forward declarations */
-typedef struct SDL_Thread SDL_Thread;
-typedef struct SDL_mutex SDL_mutex;
-typedef struct SDL_cond SDL_cond;
-
-typedef int sc_thread_fn(void *);
-typedef unsigned int sc_thread_id;
-
-typedef struct sc_thread {
-    SDL_Thread *thread;
-} sc_thread;
-
-typedef struct sc_mutex {
-    SDL_mutex *mutex;
-#ifndef NDEBUG
-    sc_thread_id locker;
-#endif
-} sc_mutex;
-
-typedef struct sc_cond {
-    SDL_cond *cond;
-} sc_cond;
-
-bool
-sc_thread_create(sc_thread *thread, sc_thread_fn fn, const char *name,
-                 void *userdata);
-
-void
-sc_thread_join(sc_thread *thread, int *status);
-
-bool
-sc_mutex_init(sc_mutex *mutex);
-
-void
-sc_mutex_destroy(sc_mutex *mutex);
-
-void
-sc_mutex_lock(sc_mutex *mutex);
-
-void
-sc_mutex_unlock(sc_mutex *mutex);
-
-sc_thread_id
-sc_thread_get_id(void);
-
-#ifndef NDEBUG
-bool
-sc_mutex_held(struct sc_mutex *mutex);
-# define sc_mutex_assert(mutex) assert(sc_mutex_held(mutex))
-#else
-# define sc_mutex_assert(mutex)
-#endif
-
-bool
-sc_cond_init(sc_cond *cond);
-
-void
-sc_cond_destroy(sc_cond *cond);
-
-void
-sc_cond_wait(sc_cond *cond, sc_mutex *mutex);
-
-// return true on signaled, false on timeout
-bool
-sc_cond_timedwait(sc_cond *cond, sc_mutex *mutex, uint32_t ms);
-
-void
-sc_cond_signal(sc_cond *cond);
-
-void
-sc_cond_broadcast(sc_cond *cond);
-
-#endif

app/src/video_buffer.c

@@ -1,88 +1,113 @@
 #include "video_buffer.h"
 
 #include <assert.h>
+#include <SDL2/SDL_mutex.h>
 #include <libavutil/avutil.h>
 #include <libavformat/avformat.h>
 
+#include "config.h"
+#include "util/lock.h"
 #include "util/log.h"
 
 bool
-video_buffer_init(struct video_buffer *vb) {
-    vb->pending_frame = av_frame_alloc();
-    if (!vb->pending_frame) {
-        return false;
+video_buffer_init(struct video_buffer *vb, struct fps_counter *fps_counter,
+                  bool render_expired_frames) {
+    vb->fps_counter = fps_counter;
+
+    if (!(vb->decoding_frame = av_frame_alloc())) {
+        goto error_0;
     }
 
-    vb->tmp_frame = av_frame_alloc();
-    if (!vb->tmp_frame) {
-        av_frame_free(&vb->pending_frame);
-        return false;
+    if (!(vb->rendering_frame = av_frame_alloc())) {
+        goto error_1;
     }
 
-    bool ok = sc_mutex_init(&vb->mutex);
-    if (!ok) {
-        av_frame_free(&vb->pending_frame);
-        av_frame_free(&vb->tmp_frame);
-        return false;
+    if (!(vb->mutex = SDL_CreateMutex())) {
+        goto error_2;
     }
 
-    // there is initially no frame, so consider it has already been consumed
-    vb->pending_frame_consumed = true;
+    vb->render_expired_frames = render_expired_frames;
+    if (render_expired_frames) {
+        if (!(vb->rendering_frame_consumed_cond = SDL_CreateCond())) {
+            SDL_DestroyMutex(vb->mutex);
+            goto error_2;
+        }
+        // interrupted is not used if expired frames are not rendered
+        // since offering a frame will never block
+        vb->interrupted = false;
+    }
+
+    // there is initially no rendering frame, so consider it has already been
+    // consumed
+    vb->rendering_frame_consumed = true;
 
     return true;
+
+error_2:
+    av_frame_free(&vb->rendering_frame);
+error_1:
+    av_frame_free(&vb->decoding_frame);
+error_0:
+    return false;
 }
 
 void
 video_buffer_destroy(struct video_buffer *vb) {
-    sc_mutex_destroy(&vb->mutex);
-    av_frame_free(&vb->pending_frame);
-    av_frame_free(&vb->tmp_frame);
+    if (vb->render_expired_frames) {
+        SDL_DestroyCond(vb->rendering_frame_consumed_cond);
+    }
+    SDL_DestroyMutex(vb->mutex);
+    av_frame_free(&vb->rendering_frame);
+    av_frame_free(&vb->decoding_frame);
 }
 
-static inline void
-swap_frames(AVFrame **lhs, AVFrame **rhs) {
-    AVFrame *tmp = *lhs;
-    *lhs = *rhs;
-    *rhs = tmp;
-}
-
-bool
-video_buffer_push(struct video_buffer *vb, const AVFrame *frame,
-                  bool *previous_frame_skipped) {
-    sc_mutex_lock(&vb->mutex);
-
-    // Use a temporary frame to preserve pending_frame in case of error.
-    // tmp_frame is an empty frame, no need to call av_frame_unref() beforehand.
-    int r = av_frame_ref(vb->tmp_frame, frame);
-    if (r) {
-        LOGE("Could not ref frame: %d", r);
-        return false;
-    }
-
-    // Now that av_frame_ref() succeeded, we can replace the previous
-    // pending_frame
-    swap_frames(&vb->pending_frame, &vb->tmp_frame);
-    av_frame_unref(vb->tmp_frame);
-
-    if (previous_frame_skipped) {
-        *previous_frame_skipped = !vb->pending_frame_consumed;
-    }
-    vb->pending_frame_consumed = false;
-
-    sc_mutex_unlock(&vb->mutex);
-
-    return true;
+static void
+video_buffer_swap_frames(struct video_buffer *vb) {
+    AVFrame *tmp = vb->decoding_frame;
+    vb->decoding_frame = vb->rendering_frame;
+    vb->rendering_frame = tmp;
 }
 
 void
-video_buffer_consume(struct video_buffer *vb, AVFrame *dst) {
-    sc_mutex_lock(&vb->mutex);
-    assert(!vb->pending_frame_consumed);
-    vb->pending_frame_consumed = true;
+video_buffer_offer_decoded_frame(struct video_buffer *vb,
+                                 bool *previous_frame_skipped) {
+    mutex_lock(vb->mutex);
+    if (vb->render_expired_frames) {
+        // wait for the current (expired) frame to be consumed
+        while (!vb->rendering_frame_consumed && !vb->interrupted) {
+            cond_wait(vb->rendering_frame_consumed_cond, vb->mutex);
+        }
+    } else if (!vb->rendering_frame_consumed) {
+        fps_counter_add_skipped_frame(vb->fps_counter);
+    }
 
-    av_frame_move_ref(dst, vb->pending_frame);
-    // av_frame_move_ref() resets its source frame, so no need to call
-    // av_frame_unref()
+    video_buffer_swap_frames(vb);
 
-    sc_mutex_unlock(&vb->mutex);
+    *previous_frame_skipped = !vb->rendering_frame_consumed;
+    vb->rendering_frame_consumed = false;
+
+    mutex_unlock(vb->mutex);
+}
+
+const AVFrame *
+video_buffer_consume_rendered_frame(struct video_buffer *vb) {
+    assert(!vb->rendering_frame_consumed);
+    vb->rendering_frame_consumed = true;
+    fps_counter_add_rendered_frame(vb->fps_counter);
+    if (vb->render_expired_frames) {
+        // unblock video_buffer_offer_decoded_frame()
+        cond_signal(vb->rendering_frame_consumed_cond);
+    }
+    return vb->rendering_frame;
+}
+
+void
+video_buffer_interrupt(struct video_buffer *vb) {
+    if (vb->render_expired_frames) {
+        mutex_lock(vb->mutex);
+        vb->interrupted = true;
+        mutex_unlock(vb->mutex);
+        // wake up blocking wait
+        cond_signal(vb->rendering_frame_consumed_cond);
+    }
 }

app/src/video_buffer.h

@@ -1,50 +1,49 @@
 #ifndef VIDEO_BUFFER_H
 #define VIDEO_BUFFER_H
 
-#include "common.h"
-
 #include <stdbool.h>
+#include <SDL2/SDL_mutex.h>
 
+#include "config.h"
 #include "fps_counter.h"
-#include "util/thread.h"
 
 // forward declarations
 typedef struct AVFrame AVFrame;
 
-/**
- * A video buffer holds 1 pending frame, which is the last frame received from
- * the producer (typically, the decoder).
- *
- * If a pending frame has not been consumed when the producer pushes a new
- * frame, then it is lost. The intent is to always provide access to the very
- * last frame to minimize latency.
- *
- * The producer and the consumer typically do not live in the same thread.
- * That's the reason why the callback on_frame_available() does not provide the
- * frame as parameter: the consumer might post an event to its own thread to
- * retrieve the pending frame from there, and that frame may have changed since
- * the callback if producer pushed a new one in between.
- */
-
 struct video_buffer {
-    AVFrame *pending_frame;
-    AVFrame *tmp_frame; // To preserve the pending frame on error
-
-    sc_mutex mutex;
-
-    bool pending_frame_consumed;
+    AVFrame *decoding_frame;
+    AVFrame *rendering_frame;
+    SDL_mutex *mutex;
+    bool render_expired_frames;
+    bool interrupted;
+    SDL_cond *rendering_frame_consumed_cond;
+    bool rendering_frame_consumed;
+    struct fps_counter *fps_counter;
 };
 
 bool
-video_buffer_init(struct video_buffer *vb);
+video_buffer_init(struct video_buffer *vb, struct fps_counter *fps_counter,
+                  bool render_expired_frames);
 
 void
 video_buffer_destroy(struct video_buffer *vb);
 
-bool
-video_buffer_push(struct video_buffer *vb, const AVFrame *frame, bool *skipped);
-
+// set the decoded frame as ready for rendering
+// this function locks frames->mutex during its execution
+// the output flag is set to report whether the previous frame has been skipped
 void
-video_buffer_consume(struct video_buffer *vb, AVFrame *dst);
+video_buffer_offer_decoded_frame(struct video_buffer *vb,
+                                 bool *previous_frame_skipped);
+
+// mark the rendering frame as consumed and return it
+// MUST be called with frames->mutex locked!!!
+// the caller is expected to render the returned frame to some texture before
+// unlocking frames->mutex
+const AVFrame *
+video_buffer_consume_rendered_frame(struct video_buffer *vb);
+
+// wake up and avoid any blocking call
+void
+video_buffer_interrupt(struct video_buffer *vb);
 
 #endif

app/tests/test_buffer_util.c

@@ -1,5 +1,3 @@
-#include "common.h"
-
 #include <assert.h>
 
 #include "util/buffer_util.h"

app/tests/test_cbuf.c

@@ -1,5 +1,3 @@
-#include "common.h"
-
 #include <assert.h>
 #include <string.h>
 

app/tests/test_cli.c

@@ -1,9 +1,8 @@
-#include "common.h"
-
 #include <assert.h>
 #include <string.h>
 
 #include "cli.h"
+#include "common.h"
 #include "scrcpy.h"
 
 static void test_flag_version(void) {
@@ -58,6 +57,7 @@ static void test_options(void) {
         "--push-target", "/sdcard/Movies",
         "--record", "file",
         "--record-format", "mkv",
+        "--render-expired-frames",
         "--serial", "0123456789abcdef",
         "--show-touches",
         "--turn-screen-off",
@@ -86,6 +86,7 @@ static void test_options(void) {
     assert(!strcmp(opts->push_target, "/sdcard/Movies"));
     assert(!strcmp(opts->record_filename, "file"));
     assert(opts->record_format == SC_RECORD_FORMAT_MKV);
+    assert(opts->render_expired_frames);
     assert(!strcmp(opts->serial, "0123456789abcdef"));
     assert(opts->show_touches);
     assert(opts->turn_screen_off);

app/tests/test_control_msg_serialize.c

@@ -1,5 +1,3 @@
-#include "common.h"
-
 #include <assert.h>
 #include <string.h>
 
@@ -17,7 +15,7 @@ static void test_serialize_inject_keycode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 14);
 
     const unsigned char expected[] = {
@@ -39,7 +37,7 @@ static void test_serialize_inject_text(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 18);
 
     const unsigned char expected[] = {
@@ -59,7 +57,7 @@ static void test_serialize_inject_text_long(void) {
     msg.inject_text.text = text;
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH);
 
     unsigned char expected[5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH];
@@ -95,7 +93,7 @@ static void test_serialize_inject_touch_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 28);
 
     const unsigned char expected[] = {
@@ -130,7 +128,7 @@ static void test_serialize_inject_scroll_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 21);
 
     const unsigned char expected[] = {
@@ -149,7 +147,7 @@ static void test_serialize_back_or_screen_on(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -164,7 +162,7 @@ static void test_serialize_expand_notification_panel(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -179,7 +177,7 @@ static void test_serialize_collapse_notification_panel(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -194,7 +192,7 @@ static void test_serialize_get_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -213,7 +211,7 @@ static void test_serialize_set_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 19);
 
     const unsigned char expected[] = {
@@ -234,7 +232,7 @@ static void test_serialize_set_screen_power_mode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -250,7 +248,7 @@ static void test_serialize_rotate_device(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    int size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {

app/tests/test_device_msg_deserialize.c

@@ -1,5 +1,3 @@
-#include "common.h"
-
 #include <assert.h>
 #include <string.h>
 

app/tests/test_queue.c

@@ -1,5 +1,3 @@
-#include "common.h"
-
 #include <assert.h>
 
 #include "util/queue.h"

app/tests/test_strutil.c

@@ -1,9 +1,8 @@
-#include "common.h"
-
 #include <assert.h>
 #include <limits.h>
 #include <stdio.h>
 #include <string.h>
+#include <SDL2/SDL.h>
 
 #include "util/str_util.h"
 
@@ -137,7 +136,7 @@ static void test_strquote(void) {
     // add '"' at the beginning and the end
     assert(!strcmp("\"abcde\"", out));
 
-    free(out);
+    SDL_free(out);
 }
 
 static void test_utf8_truncate(void) {

cross_win32.txt

@@ -2,11 +2,11 @@
 
 [binaries]
 name = 'mingw'
-c = 'i686-w64-mingw32-gcc'
-cpp = 'i686-w64-mingw32-g++'
-ar = 'i686-w64-mingw32-ar'
-strip = 'i686-w64-mingw32-strip'
-pkgconfig = 'i686-w64-mingw32-pkg-config'
+c = '/usr/bin/i686-w64-mingw32-gcc'
+cpp = '/usr/bin/i686-w64-mingw32-g++'
+ar = '/usr/bin/i686-w64-mingw32-ar'
+strip = '/usr/bin/i686-w64-mingw32-strip'
+pkgconfig = '/usr/bin/i686-w64-mingw32-pkg-config'
 
 [host_machine]
 system = 'windows'
@@ -17,4 +17,4 @@ endian = 'little'
 [properties]
 prebuilt_ffmpeg_shared = 'ffmpeg-4.3.1-win32-shared'
 prebuilt_ffmpeg_dev = 'ffmpeg-4.3.1-win32-dev'
-prebuilt_sdl2 = 'SDL2-2.0.14/i686-w64-mingw32'
+prebuilt_sdl2 = 'SDL2-2.0.12/i686-w64-mingw32'

cross_win64.txt

@@ -2,11 +2,11 @@
 
 [binaries]
 name = 'mingw'
-c = 'x86_64-w64-mingw32-gcc'
-cpp = 'x86_64-w64-mingw32-g++'
-ar = 'x86_64-w64-mingw32-ar'
-strip = 'x86_64-w64-mingw32-strip'
-pkgconfig = 'x86_64-w64-mingw32-pkg-config'
+c = '/usr/bin/x86_64-w64-mingw32-gcc'
+cpp = '/usr/bin/x86_64-w64-mingw32-g++'
+ar = '/usr/bin/x86_64-w64-mingw32-ar'
+strip = '/usr/bin/x86_64-w64-mingw32-strip'
+pkgconfig = '/usr/bin/x86_64-w64-mingw32-pkg-config'
 
 [host_machine]
 system = 'windows'
@@ -17,4 +17,4 @@ endian = 'little'
 [properties]
 prebuilt_ffmpeg_shared = 'ffmpeg-4.3.1-win64-shared'
 prebuilt_ffmpeg_dev = 'ffmpeg-4.3.1-win64-dev'
-prebuilt_sdl2 = 'SDL2-2.0.14/x86_64-w64-mingw32'
+prebuilt_sdl2 = 'SDL2-2.0.12/x86_64-w64-mingw32'

data/scrcpy-noconsole.vbs

@@ -1,7 +0,0 @@
-strCommand = "cmd /c scrcpy.exe"
-
-For Each Arg In WScript.Arguments
-    strCommand = strCommand & " """ & replace(Arg, """", """""""""") & """"
-Next
-
-CreateObject("Wscript.Shell").Run strCommand, 0, false

meson.build

@@ -1,10 +1,9 @@
 project('scrcpy', 'c',
-        version: '1.17',
+        version: '1.16',
         meson_version: '>= 0.48',
         default_options: [
             'c_std=c11',
             'warning_level=2',
-            'b_ndebug=if-release',
         ])
 
 if get_option('compile_app')

meson_options.txt

@@ -1,7 +1,9 @@
 option('compile_app', type: 'boolean', value: true, description: 'Build the client')
 option('compile_server', type: 'boolean', value: true, description: 'Build the server')
 option('crossbuild_windows', type: 'boolean', value: false, description: 'Build for Windows from Linux')
+option('windows_noconsole', type: 'boolean', value: false, description: 'Disable console on Windows (pass -mwindows flag)')
 option('prebuilt_server', type: 'string', description: 'Path of the prebuilt server')
 option('portable', type: 'boolean', value: false, description: 'Use scrcpy-server from the same directory as the scrcpy executable')
+option('hidpi_support', type: 'boolean', value: true, description: 'Enable High DPI support')
 option('server_debugger', type: 'boolean', value: false, description: 'Run a server debugger and wait for a client to be attached')
 option('server_debugger_method', type: 'combo', choices: ['old', 'new'], value: 'new', description: 'Select the debugger method (Android < 9: "old", Android >= 9: "new")')

prebuilt-deps/Makefile

@@ -30,9 +30,9 @@ prepare-ffmpeg-dev-win64:
 		ffmpeg-4.3.1-win64-dev
 
 prepare-sdl2:
-	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.14-mingw.tar.gz \
-		405eaff3eb18f2e08fe669ef9e63bc9a8710b7d343756f238619761e9b60407d \
-		SDL2-2.0.14
+	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.12-mingw.tar.gz \
+		e614a60f797e35ef9f3f96aef3dc6a1d786de3cc7ca6216f97e435c0b6aafc46 \
+		SDL2-2.0.12
 
 prepare-adb:
 	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r30.0.5-windows.zip \

release.sh

@@ -1,2 +1,44 @@
 #!/bin/bash
-make -f release.mk
+set -e
+
+# test locally
+TESTDIR=build_test
+rm -rf "$TESTDIR"
+# run client tests with ASAN enabled
+meson "$TESTDIR" -Db_sanitize=address
+ninja -C"$TESTDIR" test
+
+# test server
+GRADLE=${GRADLE:-./gradlew}
+$GRADLE -p server check
+
+BUILDDIR=build_release
+rm -rf "$BUILDDIR"
+meson "$BUILDDIR" --buildtype release --strip -Db_lto=true
+cd "$BUILDDIR"
+ninja
+cd -
+
+# build Windows releases
+make -f Makefile.CrossWindows
+
+# the generated server must be the same everywhere
+cmp "$BUILDDIR/server/scrcpy-server" dist/scrcpy-win32/scrcpy-server
+cmp "$BUILDDIR/server/scrcpy-server" dist/scrcpy-win64/scrcpy-server
+
+# get version name
+TAG=$(git describe --tags --always)
+
+# create release directory
+mkdir -p "release-$TAG"
+cp "$BUILDDIR/server/scrcpy-server" "release-$TAG/scrcpy-server-$TAG"
+cp "dist/scrcpy-win32-$TAG.zip" "release-$TAG/"
+cp "dist/scrcpy-win64-$TAG.zip" "release-$TAG/"
+
+# generate checksums
+cd "release-$TAG"
+sha256sum "scrcpy-server-$TAG" \
+          "scrcpy-win32-$TAG.zip" \
+          "scrcpy-win64-$TAG.zip" > SHA256SUMS.txt
+
+echo "Release generated in release-$TAG/"

server/build.gradle

@@ -6,8 +6,8 @@ android {
         applicationId "com.genymobile.scrcpy"
         minSdkVersion 21
         targetSdkVersion 30
-        versionCode 20
-        versionName "1.17"
+        versionCode 19
+        versionName "1.16"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {

server/build_without_gradle.sh

@@ -12,7 +12,7 @@
 set -e
 
 SCRCPY_DEBUG=false
-SCRCPY_VERSION_NAME=1.17
+SCRCPY_VERSION_NAME=1.16
 
 PLATFORM=${ANDROID_PLATFORM:-30}
 BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-30.0.0}

server/src/main/java/com/genymobile/scrcpy/CleanUp.java

@@ -19,21 +19,19 @@ public final class CleanUp {
         // not instantiable
     }
 
-    public static void configure(boolean disableShowTouches, int restoreStayOn, boolean restoreNormalPowerMode, boolean powerOffScreen, int displayId)
-            throws IOException {
-        boolean needProcess = disableShowTouches || restoreStayOn != -1 || restoreNormalPowerMode || powerOffScreen;
+    public static void configure(boolean disableShowTouches, int restoreStayOn, boolean restoreNormalPowerMode) throws IOException {
+        boolean needProcess = disableShowTouches || restoreStayOn != -1 || restoreNormalPowerMode;
         if (needProcess) {
-            startProcess(disableShowTouches, restoreStayOn, restoreNormalPowerMode, powerOffScreen, displayId);
+            startProcess(disableShowTouches, restoreStayOn, restoreNormalPowerMode);
         } else {
             // There is no additional clean up to do when scrcpy dies
             unlinkSelf();
         }
     }
 
-    private static void startProcess(boolean disableShowTouches, int restoreStayOn, boolean restoreNormalPowerMode, boolean powerOffScreen,
-            int displayId) throws IOException {
+    private static void startProcess(boolean disableShowTouches, int restoreStayOn, boolean restoreNormalPowerMode) throws IOException {
         String[] cmd = {"app_process", "/", CleanUp.class.getName(), String.valueOf(disableShowTouches), String.valueOf(
-                restoreStayOn), String.valueOf(restoreNormalPowerMode), String.valueOf(powerOffScreen), String.valueOf(displayId)};
+                restoreStayOn), String.valueOf(restoreNormalPowerMode)};
 
         ProcessBuilder builder = new ProcessBuilder(cmd);
         builder.environment().put("CLASSPATH", SERVER_PATH);
@@ -63,8 +61,6 @@ public final class CleanUp {
         boolean disableShowTouches = Boolean.parseBoolean(args[0]);
         int restoreStayOn = Integer.parseInt(args[1]);
         boolean restoreNormalPowerMode = Boolean.parseBoolean(args[2]);
-        boolean powerOffScreen = Boolean.parseBoolean(args[3]);
-        int displayId = Integer.parseInt(args[4]);
 
         if (disableShowTouches || restoreStayOn != -1) {
             ServiceManager serviceManager = new ServiceManager();
@@ -80,12 +76,9 @@ public final class CleanUp {
             }
         }
 
-        if (Device.isScreenOn()) {
-            if (powerOffScreen) {
-                Ln.i("Power off screen");
-                Device.powerOffScreen(displayId);
-            } else if (restoreNormalPowerMode) {
-                Ln.i("Restoring normal power mode");
+        if (restoreNormalPowerMode) {
+            Ln.i("Restoring normal power mode");
+            if (Device.isScreenOn()) {
                 Device.setScreenPowerMode(Device.POWER_MODE_NORMAL);
             }
         }

server/src/main/java/com/genymobile/scrcpy/Controller.java

@@ -14,7 +14,7 @@ import java.util.concurrent.TimeUnit;
 
 public class Controller {
 
-    private static final int DEFAULT_DEVICE_ID = 0;
+    private static final int DEVICE_ID_VIRTUAL = -1;
 
     private static final ScheduledExecutorService EXECUTOR = Executors.newSingleThreadScheduledExecutor();
 
@@ -45,7 +45,7 @@ public class Controller {
 
             MotionEvent.PointerCoords coords = new MotionEvent.PointerCoords();
             coords.orientation = 0;
-            coords.size = 0;
+            coords.size = 1;
 
             pointerProperties[i] = props;
             pointerCoords[i] = coords;
@@ -208,13 +208,9 @@ public class Controller {
         // Right-click and middle-click only work if the source is a mouse
         boolean nonPrimaryButtonPressed = (buttons & ~MotionEvent.BUTTON_PRIMARY) != 0;
         int source = nonPrimaryButtonPressed ? InputDevice.SOURCE_MOUSE : InputDevice.SOURCE_TOUCHSCREEN;
-        if (source != InputDevice.SOURCE_MOUSE) {
-            // Buttons must not be set for touch events
-            buttons = 0;
-        }
 
         MotionEvent event = MotionEvent
-                .obtain(lastTouchDown, now, action, pointerCount, pointerProperties, pointerCoords, 0, buttons, 1f, 1f, DEFAULT_DEVICE_ID, 0, source,
+                .obtain(lastTouchDown, now, action, pointerCount, pointerProperties, pointerCoords, 0, buttons, 1f, 1f, DEVICE_ID_VIRTUAL, 0, source,
                         0);
         return device.injectEvent(event);
     }
@@ -237,7 +233,7 @@ public class Controller {
         coords.setAxisValue(MotionEvent.AXIS_VSCROLL, vScroll);
 
         MotionEvent event = MotionEvent
-                .obtain(lastTouchDown, now, MotionEvent.ACTION_SCROLL, 1, pointerProperties, pointerCoords, 0, 0, 1f, 1f, DEFAULT_DEVICE_ID, 0,
+                .obtain(lastTouchDown, now, MotionEvent.ACTION_SCROLL, 1, pointerProperties, pointerCoords, 0, 0, 1f, 1f, DEVICE_ID_VIRTUAL, 0,
                         InputDevice.SOURCE_TOUCHSCREEN, 0);
         return device.injectEvent(event);
     }

server/src/main/java/com/genymobile/scrcpy/Device.java

@@ -153,17 +153,13 @@ public final class Device {
         return Build.MODEL;
     }
 
-    public static boolean supportsInputEvents(int displayId) {
-        return displayId == 0 || Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q;
-    }
-
     public boolean supportsInputEvents() {
         return supportsInputEvents;
     }
 
-    public static boolean injectEvent(InputEvent inputEvent, int mode, int displayId) {
-        if (!supportsInputEvents(displayId)) {
-            return false;
+    public boolean injectEvent(InputEvent inputEvent, int mode) {
+        if (!supportsInputEvents()) {
+            throw new AssertionError("Could not inject input event if !supportsInputEvents()");
         }
 
         if (displayId != 0 && !InputManager.setDisplayId(inputEvent, displayId)) {
@@ -173,29 +169,10 @@ public final class Device {
         return SERVICE_MANAGER.getInputManager().injectInputEvent(inputEvent, mode);
     }
 
-    public boolean injectEvent(InputEvent inputEvent, int mode) {
-        if (!supportsInputEvents()) {
-            throw new AssertionError("Could not inject input event if !supportsInputEvents()");
-        }
-
-        return injectEvent(inputEvent, mode, displayId);
-    }
-
-    public static boolean injectEventOnDisplay(InputEvent event, int displayId) {
-        return injectEvent(event, InputManager.INJECT_INPUT_EVENT_MODE_ASYNC, displayId);
-    }
-
     public boolean injectEvent(InputEvent event) {
         return injectEvent(event, InputManager.INJECT_INPUT_EVENT_MODE_ASYNC);
     }
 
-    public static boolean injectKeyEvent(int action, int keyCode, int repeat, int metaState, int displayId) {
-        long now = SystemClock.uptimeMillis();
-        KeyEvent event = new KeyEvent(now, now, action, keyCode, repeat, metaState, KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0,
-                InputDevice.SOURCE_KEYBOARD);
-        return injectEventOnDisplay(event, displayId);
-    }
-
     public boolean injectKeyEvent(int action, int keyCode, int repeat, int metaState) {
         long now = SystemClock.uptimeMillis();
         KeyEvent event = new KeyEvent(now, now, action, keyCode, repeat, metaState, KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0,
@@ -203,10 +180,6 @@ public final class Device {
         return injectEvent(event);
     }
 
-    public static boolean injectKeycode(int keyCode, int displayId) {
-        return injectKeyEvent(KeyEvent.ACTION_DOWN, keyCode, 0, 0, displayId) && injectKeyEvent(KeyEvent.ACTION_UP, keyCode, 0, 0, displayId);
-    }
-
     public boolean injectKeycode(int keyCode) {
         return injectKeyEvent(KeyEvent.ACTION_DOWN, keyCode, 0, 0) && injectKeyEvent(KeyEvent.ACTION_UP, keyCode, 0, 0);
     }
@@ -276,13 +249,6 @@ public final class Device {
         return SurfaceControl.setDisplayPowerMode(d, mode);
     }
 
-    public static boolean powerOffScreen(int displayId) {
-        if (!isScreenOn()) {
-            return true;
-        }
-        return injectKeycode(KeyEvent.KEYCODE_POWER, displayId);
-    }
-
     /**
      * Disable auto-rotation (if enabled), set the screen rotation and re-enable auto-rotation (if it was enabled).
      */

server/src/main/java/com/genymobile/scrcpy/Options.java

@@ -17,7 +17,6 @@ public class Options {
     private boolean stayAwake;
     private String codecOptions;
     private String encoderName;
-    private boolean powerOffScreenOnClose;
 
     public Ln.Level getLogLevel() {
         return logLevel;
@@ -130,12 +129,4 @@ public class Options {
     public void setEncoderName(String encoderName) {
         this.encoderName = encoderName;
     }
-
-    public void setPowerOffScreenOnClose(boolean powerOffScreenOnClose) {
-        this.powerOffScreenOnClose = powerOffScreenOnClose;
-    }
-
-    public boolean getPowerOffScreenOnClose() {
-        return this.powerOffScreenOnClose;
-    }
 }

server/src/main/java/com/genymobile/scrcpy/Server.java

@@ -50,7 +50,7 @@ public final class Server {
             }
         }
 
-        CleanUp.configure(mustDisableShowTouchesOnCleanUp, restoreStayOn, true, options.getPowerOffScreenOnClose(), options.getDisplayId());
+        CleanUp.configure(mustDisableShowTouchesOnCleanUp, restoreStayOn, true);
 
         boolean tunnelForward = options.isTunnelForward();
 
@@ -58,14 +58,12 @@ public final class Server {
             ScreenEncoder screenEncoder = new ScreenEncoder(options.getSendFrameMeta(), options.getBitRate(), options.getMaxFps(), codecOptions,
                     options.getEncoderName());
 
-            Thread controllerThread = null;
-            Thread deviceMessageSenderThread = null;
             if (options.getControl()) {
                 final Controller controller = new Controller(device, connection);
 
                 // asynchronous
-                controllerThread = startController(controller);
-                deviceMessageSenderThread = startDeviceMessageSender(controller.getSender());
+                startController(controller);
+                startDeviceMessageSender(controller.getSender());
 
                 device.setClipboardListener(new Device.ClipboardListener() {
                     @Override
@@ -81,19 +79,12 @@ public final class Server {
             } catch (IOException e) {
                 // this is expected on close
                 Ln.d("Screen streaming stopped");
-            } finally {
-                if (controllerThread != null) {
-                    controllerThread.interrupt();
-                }
-                if (deviceMessageSenderThread != null) {
-                    deviceMessageSenderThread.interrupt();
-                }
             }
         }
     }
 
-    private static Thread startController(final Controller controller) {
-        Thread thread = new Thread(new Runnable() {
+    private static void startController(final Controller controller) {
+        new Thread(new Runnable() {
             @Override
             public void run() {
                 try {
@@ -103,13 +94,11 @@ public final class Server {
                     Ln.d("Controller stopped");
                 }
             }
-        });
-        thread.start();
-        return thread;
+        }).start();
     }
 
-    private static Thread startDeviceMessageSender(final DeviceMessageSender sender) {
-        Thread thread = new Thread(new Runnable() {
+    private static void startDeviceMessageSender(final DeviceMessageSender sender) {
+        new Thread(new Runnable() {
             @Override
             public void run() {
                 try {
@@ -119,9 +108,7 @@ public final class Server {
                     Ln.d("Device message sender stopped");
                 }
             }
-        });
-        thread.start();
-        return thread;
+        }).start();
     }
 
     private static Options createOptions(String... args) {
@@ -135,7 +122,7 @@ public final class Server {
                     "The server version (" + BuildConfig.VERSION_NAME + ") does not match the client " + "(" + clientVersion + ")");
         }
 
-        final int expectedParameters = 16;
+        final int expectedParameters = 15;
         if (args.length != expectedParameters) {
             throw new IllegalArgumentException("Expecting " + expectedParameters + " parameters");
         }
@@ -185,9 +172,6 @@ public final class Server {
         String encoderName = "-".equals(args[14]) ? null : args[14];
         options.setEncoderName(encoderName);
 
-        boolean powerOffScreenOnClose = Boolean.parseBoolean(args[15]);
-        options.setPowerOffScreenOnClose(powerOffScreenOnClose);
-
         return options;
     }
 
@@ -233,7 +217,7 @@ public final class Server {
             if (encoders != null && encoders.length > 0) {
                 Ln.e("Try to use one of the available encoders:");
                 for (MediaCodecInfo encoder : encoders) {
-                    Ln.e("    scrcpy --encoder '" + encoder.getName() + "'");
+                    Ln.e("    scrcpy --encoder-name '" + encoder.getName() + "'");
                 }
             }
         }