Use non-secure display for Android >= 12

Since Android 12, secure displays could not be created with shell
permissions anymore.

Refs commit 1fdde490fd
Fixes #2129 <https://github.com/Genymobile/scrcpy/issues/2129>

README.md

@@ -491,6 +491,18 @@ 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

app/meson.build

@@ -114,10 +114,23 @@ 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'))
+
 # run a server debugger and wait for a client to be attached
 conf.set('SERVER_DEBUGGER', get_option('server_debugger'))
 

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/cli.c

@@ -10,9 +10,6 @@
 #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 +23,7 @@ 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 +81,7 @@ 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 +91,7 @@ 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 +110,7 @@ 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) ":"
+        "        Default is %d:%d.\n"
-                              STR(DEFAULT_LOCAL_PORT_RANGE_LAST) ".\n"
         "\n"
         "    --prefer-text\n"
         "        Inject alpha characters and space as text events instead of\n"
@@ -143,6 +139,12 @@ 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 +297,12 @@ 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
@@ -660,7 +667,6 @@ 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 +717,6 @@ 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 +814,7 @@ 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 "
+                opts->render_expired_frames = true;
-                     "flag has been ignored.");
                 break;
             case OPT_WINDOW_TITLE:
                 opts->window_title = optarg;
@@ -882,9 +885,6 @@ 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/common.h

@@ -8,7 +8,4 @@
 #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)))
-
 #endif

app/src/compat.h

@@ -8,9 +8,20 @@
 # define _DARWIN_C_SOURCE
 #endif
 
+#include <libavcodec/version.h>
 #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 +33,15 @@
 # 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

app/src/decoder.c

@@ -1,43 +1,38 @@
 #include "decoder.h"
 
 #include <libavformat/avformat.h>
+#include <libavutil/time.h>
+#include <SDL2/SDL_events.h>
+#include <unistd.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 */
+// set the decoded frame as ready for rendering, and notify
-#define DOWNCAST(SINK) container_of(SINK, struct decoder, packet_sink)
-
 static void
-decoder_close_first_sinks(struct decoder *decoder, unsigned count) {
+push_frame(struct decoder *decoder) {
-    while (count) {
+    bool previous_frame_skipped;
-        struct sc_frame_sink *sink = decoder->sinks[--count];
+    video_buffer_offer_decoded_frame(decoder->video_buffer,
-        sink->ops->close(sink);
+                                     &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
+void
-decoder_close_sinks(struct decoder *decoder) {
+decoder_init(struct decoder *decoder, struct video_buffer *vb) {
-    decoder_close_first_sinks(decoder, decoder->sink_count);
+    decoder->video_buffer = vb;
 }
 
-static bool
+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
 decoder_open(struct decoder *decoder, const AVCodec *codec) {
     decoder->codec_ctx = avcodec_alloc_context3(codec);
     if (!decoder->codec_ctx) {
@@ -51,105 +46,52 @@ 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
+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
 decoder_push(struct decoder *decoder, const AVPacket *packet) {
-    bool is_config = packet->pts == AV_NOPTS_VALUE;
+// the new decoding/encoding API has been introduced by:
-    if (is_config) {
+// <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7fc329e2dd6226dfecaa4a1d7adf353bf2773726>
-        // nothing to do
+#ifdef SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
-        return true;
-    }
-
     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);
+        push_frame(decoder);
-        // A frame lost should not make the whole pipeline fail. The error, if
-        // any, is already logged.
-        (void) ok;
     } 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) {
+decoder_interrupt(struct decoder *decoder) {
-    static const struct sc_packet_sink_ops ops = {
+    video_buffer_interrupt(decoder->video_buffer);
-        .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;
 }

app/src/decoder.h

@@ -3,27 +3,29 @@
 
 #include "common.h"
 
-#include "trait/packet_sink.h"
-
 #include <stdbool.h>
 #include <libavformat/avformat.h>
 
-#define DECODER_MAX_SINKS 1
+struct video_buffer;
 
 struct decoder {
-    struct sc_packet_sink packet_sink; // packet sink trait
+    struct video_buffer *video_buffer;
-
-    struct sc_frame_sink *sinks[DECODER_MAX_SINKS];
-    unsigned sink_count;
-
     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/input_manager.c

@@ -480,7 +480,9 @@ 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:

app/src/input_manager.h

@@ -11,10 +11,11 @@
 #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

app/src/recorder.c

@@ -5,9 +5,6 @@
 
 #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 *
@@ -60,6 +57,50 @@ 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 = 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;
+
+    return true;
+}
+
+void
+recorder_destroy(struct recorder *recorder) {
+    sc_cond_destroy(&recorder->queue_cond);
+    sc_mutex_destroy(&recorder->mutex);
+    free(recorder->filename);
+}
+
 static const char *
 recorder_get_format_name(enum sc_record_format format) {
     switch (format) {
@@ -69,6 +110,88 @@ recorder_get_format_name(enum sc_record_format format) {
     }
 }
 
+bool
+recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
+    const char *format_name = recorder_get_format_name(recorder->format);
+    assert(format_name);
+    const AVOutputFormat *format = find_muxer(format_name);
+    if (!format) {
+        LOGE("Could not find muxer");
+        return false;
+    }
+
+    recorder->ctx = avformat_alloc_context();
+    if (!recorder->ctx) {
+        LOGE("Could not allocate output context");
+        return false;
+    }
+
+    // contrary to the deprecated API (av_oformat_next()), av_muxer_iterate()
+    // returns (on purpose) a pointer-to-const, but AVFormatContext.oformat
+    // still expects a pointer-to-non-const (it has not be updated accordingly)
+    // <https://github.com/FFmpeg/FFmpeg/commit/0694d8702421e7aff1340038559c438b61bb30dd>
+    recorder->ctx->oformat = (AVOutputFormat *) format;
+
+    av_dict_set(&recorder->ctx->metadata, "comment",
+                "Recorded by scrcpy " SCRCPY_VERSION, 0);
+
+    AVStream *ostream = avformat_new_stream(recorder->ctx, input_codec);
+    if (!ostream) {
+        avformat_free_context(recorder->ctx);
+        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);
+    if (ret < 0) {
+        LOGE("Failed to open output file: %s", recorder->filename);
+        // ostream will be cleaned up during context cleaning
+        avformat_free_context(recorder->ctx);
+        return false;
+    }
+
+    LOGI("Recording started to %s file: %s", format_name, recorder->filename);
+
+    return true;
+}
+
+void
+recorder_close(struct recorder *recorder) {
+    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];
@@ -82,8 +205,13 @@ recorder_write_header(struct recorder *recorder, const AVPacket *packet) {
     // 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) {
@@ -100,7 +228,7 @@ recorder_rescale_packet(struct recorder *recorder, AVPacket *packet) {
     av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
 }
 
-static bool
+bool
 recorder_write(struct recorder *recorder, AVPacket *packet) {
     if (!recorder->header_written) {
         if (packet->pts != AV_NOPTS_VALUE) {
@@ -189,26 +317,7 @@ run_recorder(void *data) {
             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");
@@ -216,80 +325,34 @@ run_recorder(void *data) {
     return 0;
 }
 
-static bool
+bool
-recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
+recorder_start(struct recorder *recorder) {
-    const char *format_name = recorder_get_format_name(recorder->format);
-    assert(format_name);
-    const AVOutputFormat *format = find_muxer(format_name);
-    if (!format) {
-        LOGE("Could not find muxer");
-        return false;
-    }
-
-    recorder->ctx = avformat_alloc_context();
-    if (!recorder->ctx) {
-        LOGE("Could not allocate output context");
-        return false;
-    }
-
-    // contrary to the deprecated API (av_oformat_next()), av_muxer_iterate()
-    // returns (on purpose) a pointer-to-const, but AVFormatContext.oformat
-    // still expects a pointer-to-non-const (it has not be updated accordingly)
-    // <https://github.com/FFmpeg/FFmpeg/commit/0694d8702421e7aff1340038559c438b61bb30dd>
-    recorder->ctx->oformat = (AVOutputFormat *) format;
-
-    av_dict_set(&recorder->ctx->metadata, "comment",
-                "Recorded by scrcpy " SCRCPY_VERSION, 0);
-
-    AVStream *ostream = avformat_new_stream(recorder->ctx, input_codec);
-    if (!ostream) {
-        avformat_free_context(recorder->ctx);
-        return false;
-    }
-
-    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;
-
-    int ret = avio_open(&recorder->ctx->pb, recorder->filename,
-                        AVIO_FLAG_WRITE);
-    if (ret < 0) {
-        LOGE("Failed to open output file: %s", recorder->filename);
-        // ostream will be cleaned up during context cleaning
-        avformat_free_context(recorder->ctx);
-        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) {
+recorder_stop(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);
-
-    avio_close(recorder->ctx->pb);
-    avformat_free_context(recorder->ctx);
 }
 
-static bool
+void
+recorder_join(struct recorder *recorder) {
+    sc_thread_join(&recorder->thread, NULL);
+}
+
+bool
 recorder_push(struct recorder *recorder, const AVPacket *packet) {
     sc_mutex_lock(&recorder->mutex);
     assert(!recorder->stopped);
@@ -313,73 +376,3 @@ recorder_push(struct recorder *recorder, const AVPacket *packet) {
     sc_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

@@ -8,7 +8,6 @@
 
 #include "coords.h"
 #include "scrcpy.h"
-#include "trait/packet_sink.h"
 #include "util/queue.h"
 #include "util/thread.h"
 
@@ -20,8 +19,6 @@ 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;
@@ -31,7 +28,7 @@ struct recorder {
     sc_thread thread;
     sc_mutex mutex;
     sc_cond queue_cond;
-    bool stopped; // set on recorder_close()
+    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

@@ -25,12 +25,14 @@
 #include "server.h"
 #include "stream.h"
 #include "tiny_xpm.h"
+#include "video_buffer.h"
 #include "util/log.h"
 #include "util/net.h"
 
 static struct server server;
 static struct screen screen;
 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 +41,7 @@ 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,
 
@@ -274,12 +276,12 @@ scrcpy(const struct scrcpy_options *options) {
 
     bool server_started = 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;
-    bool screen_initialized = false;
 
     bool record = !!options->record_filename;
     struct server_params params = {
@@ -297,7 +299,6 @@ 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;
@@ -331,6 +332,12 @@ 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 +346,7 @@ scrcpy(const struct scrcpy_options *options) {
             file_handler_initialized = true;
         }
 
-        decoder_init(&decoder);
+        decoder_init(&decoder, &video_buffer);
         dec = &decoder;
     }
 
@@ -357,15 +364,14 @@ 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) {
+    // now we consumed the header values, the socket receives the video stream
-        stream_add_sink(&stream, &dec->packet_sink);
+    // start the stream
-    }
+    if (!stream_start(&stream)) {
-
+        goto end;
-    if (rec) {
-        stream_add_sink(&stream, &rec->packet_sink);
     }
+    stream_started = true;
 
     if (options->display) {
         if (options->control) {
@@ -383,25 +389,16 @@ scrcpy(const struct scrcpy_options *options) {
         const char *window_title =
             options->window_title ? options->window_title : device_name;
 
-        struct screen_params screen_params = {
+        screen_init(&screen, &video_buffer);
-            .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 +415,19 @@ 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
+    // stop stream and controller so that they don't continue once their socket
-    // end-of-stream
+    // is shutdown
+    if (stream_started) {
+        stream_stop(&stream);
+    }
     if (controller_started) {
         controller_stop(&controller);
     }
@@ -453,13 +448,6 @@ end:
     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 +464,10 @@ 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

@@ -72,6 +72,7 @@ struct scrcpy_options {
     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

@@ -13,8 +13,6 @@
 
 #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 +191,12 @@ screen_update_content_rect(struct screen *screen) {
     }
 }
 
+void
+screen_init(struct screen *screen, struct video_buffer *vb) {
+    *screen = (struct screen) SCREEN_INITIALIZER;
+    screen->vb = vb;
+}
+
 static inline SDL_Texture *
 create_texture(struct screen *screen) {
     SDL_Renderer *renderer = screen->renderer;
@@ -220,87 +224,27 @@ 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,
+screen_init_rendering(struct screen *screen, const char *window_title,
-            const struct screen_params *params) {
+                      struct size frame_size, bool always_on_top,
-    screen->fps_counter = fps_counter;
+                      int16_t window_x, int16_t window_y, uint16_t window_width,
-
+                      uint16_t window_height, bool window_borderless,
-    screen->resize_pending = false;
+                      uint8_t rotation, bool mipmaps) {
-    screen->has_frame = false;
+    screen->frame_size = frame_size;
-    screen->fullscreen = false;
+    screen->rotation = rotation;
-    screen->maximized = false;
+    if (rotation) {
-
+        LOGI("Initial display rotation set to %u", rotation);
-    bool ok = video_buffer_init(&screen->vb);
-    if (!ok) {
-        LOGE("Could not initialize video buffer");
-        return false;
     }
-
+    struct size content_size = get_rotated_size(frame_size, screen->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);
     screen->content_size = content_size;
 
-    struct size window_size = get_initial_optimal_size(content_size,
+    struct size window_size =
-                                                       params->window_width,
+        get_initial_optimal_size(content_size, window_width, window_height);
-                                                       params->window_height);
+    uint32_t window_flags = SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE;
-    uint32_t window_flags = SDL_WINDOW_HIDDEN
+#ifdef HIDPI_SUPPORT
-                          | SDL_WINDOW_RESIZABLE
+    window_flags |= SDL_WINDOW_ALLOW_HIGHDPI;
-                          | SDL_WINDOW_ALLOW_HIGHDPI;
+#endif
-    if (params->always_on_top) {
+    if (always_on_top) {
 #ifdef SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
         window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
 #else
@@ -308,15 +252,15 @@ 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
+    int x = window_x != SC_WINDOW_POSITION_UNDEFINED
-          ? params->window_x : (int) SDL_WINDOWPOS_UNDEFINED;
+          ? window_x : (int) SDL_WINDOWPOS_UNDEFINED;
-    int y = params->window_y != SC_WINDOW_POSITION_UNDEFINED
+    int y = window_y != SC_WINDOW_POSITION_UNDEFINED
-          ? params->window_y : (int) SDL_WINDOWPOS_UNDEFINED;
+          ? window_y : (int) SDL_WINDOWPOS_UNDEFINED;
-    screen->window = SDL_CreateWindow(params->window_title, x, y,
+    screen->window = SDL_CreateWindow(window_title, x, y,
                                       window_size.width, window_size.height,
                                       window_flags);
     if (!screen->window) {
@@ -329,7 +273,6 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
     if (!screen->renderer) {
         LOGC("Could not create renderer: %s", SDL_GetError());
         SDL_DestroyWindow(screen->window);
-        video_buffer_destroy(&screen->vb);
         return false;
     }
 
@@ -338,8 +281,6 @@ 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) {
@@ -348,7 +289,7 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
 
         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 +303,7 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
         } else {
             LOGI("Trilinear filtering disabled");
         }
-    } else if (params->mipmaps) {
+    } else if (mipmaps) {
         LOGD("Trilinear filtering disabled (not an OpenGL renderer)");
     }
 
@@ -374,24 +315,14 @@ 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,
+    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width,
-                                                  params->frame_size.height);
+                                                  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);
+        screen_destroy(screen);
-        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);
         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 +343,11 @@ screen_show_window(struct screen *screen) {
 
 void
 screen_destroy(struct screen *screen) {
-#ifndef NDEBUG
+    if (screen->texture) {
-    assert(!screen->open);
+        SDL_DestroyTexture(screen->texture);
-#endif
+    }
-    av_frame_free(&screen->frame);
-    SDL_DestroyTexture(screen->texture);
     SDL_DestroyRenderer(screen->renderer);
     SDL_DestroyWindow(screen->window);
-    video_buffer_destroy(&screen->vb);
 }
 
 static void
@@ -536,12 +452,7 @@ update_texture(struct screen *screen, const AVFrame *frame) {
 
 static bool
 screen_update_frame(struct screen *screen) {
-    av_frame_unref(screen->frame);
+    const AVFrame *frame = video_buffer_take_rendering_frame(screen->vb);
-    video_buffer_consume(&screen->vb, screen->frame);
-    AVFrame *frame = screen->frame;
-
-    fps_counter_add_rendered_frame(screen->fps_counter);
-
     struct size new_frame_size = {frame->width, frame->height};
     if (!prepare_for_frame(screen, new_frame_size)) {
         return false;

app/src/screen.h

@@ -9,21 +9,11 @@
 
 #include "coords.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
+    struct video_buffer *vb;
-
-#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;
@@ -43,31 +33,55 @@ struct screen {
     bool has_frame;
     bool fullscreen;
     bool maximized;
-    bool mipmaps;
+    bool no_window;
-
-    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 mipmaps;
 };
 
+#define SCREEN_INITIALIZER { \
+    .vb = NULL, \
+    .window = NULL, \
+    .renderer = NULL, \
+    .texture = NULL, \
+    .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, struct video_buffer *vb);
+
 // 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,
+screen_init_rendering(struct screen *screen, const char *window_title,
-            const struct screen_params *params);
+                      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

app/src/server.c

@@ -293,7 +293,6 @@ 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 "

app/src/server.h

@@ -46,7 +46,6 @@ struct server_params {
     bool show_touches;
     bool stay_awake;
     bool force_adb_forward;
-    bool power_off_on_close;
 };
 
 // init default values

app/src/stream.c

@@ -66,11 +66,25 @@ notify_stopped(void) {
 }
 
 static bool
-push_packet_to_sinks(struct stream *stream, const AVPacket *packet) {
+process_config_packet(struct stream *stream, AVPacket *packet) {
-    for (unsigned i = 0; i < stream->sink_count; ++i) {
+    if (stream->recorder && !recorder_push(stream->recorder, packet)) {
-        struct sc_packet_sink *sink = stream->sinks[i];
+        LOGE("Could not send config packet to recorder");
-        if (!sink->ops->push(sink, packet)) {
+        return false;
-            LOGE("Could not send config packet to sink %d", i);
+    }
+    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 +111,9 @@ stream_parse(struct stream *stream, AVPacket *packet) {
         packet->flags |= AV_PKT_FLAG_KEY;
     }
 
-    packet->dts = packet->pts;
+    bool ok = process_frame(stream, packet);
-
-    bool ok = push_packet_to_sinks(stream, packet);
     if (!ok) {
-        LOGE("Could not process packet");
+        LOGE("Could not process frame");
         return false;
     }
 
@@ -144,7 +156,7 @@ 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 +177,6 @@ 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 +193,27 @@ run_stream(void *data) {
         goto end;
     }
 
-    if (!stream_open_sinks(stream, codec)) {
+    if (stream->decoder && !decoder_open(stream->decoder, codec)) {
-        LOGE("Could not open stream sinks");
+        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 +243,20 @@ run_stream(void *data) {
     }
 
     av_parser_close(stream->parser);
-finally_close_sinks:
+finally_stop_and_join_recorder:
-    stream_close_sinks(stream);
+    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:
@@ -256,18 +265,12 @@ 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
@@ -282,6 +285,13 @@ stream_start(struct stream *stream) {
     return true;
 }
 
+void
+stream_stop(struct stream *stream) {
+    if (stream->decoder) {
+        decoder_interrupt(stream->decoder);
+    }
+}
+
 void
 stream_join(struct stream *stream) {
     sc_thread_join(&stream->thread, NULL);

app/src/stream.h

@@ -8,19 +8,16 @@
 #include <libavformat/avformat.h>
 #include <SDL2/SDL_atomic.h>
 
-#include "trait/packet_sink.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 decoder *decoder;
-    struct sc_packet_sink *sinks[STREAM_MAX_SINKS];
+    struct recorder *recorder;
-    unsigned sink_count;
-
     AVCodecContext *codec_ctx;
     AVCodecParserContext *parser;
     // successive packets may need to be concatenated, until a non-config
@@ -30,14 +27,15 @@ struct stream {
 };
 
 void
-stream_init(struct stream *stream, socket_t socket);
+stream_init(struct stream *stream, socket_t socket,
-
+            struct decoder *decoder, struct recorder *recorder);
-void
-stream_add_sink(struct stream *stream, struct sc_packet_sink *sink);
 
 bool
 stream_start(struct stream *stream);
 
+void
+stream_stop(struct stream *stream);
+
 void
 stream_join(struct stream *stream);
 

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/video_buffer.c

@@ -7,82 +7,133 @@
 #include "util/log.h"
 
 bool
-video_buffer_init(struct video_buffer *vb) {
+video_buffer_init(struct video_buffer *vb, struct fps_counter *fps_counter,
-    vb->pending_frame = av_frame_alloc();
+                  bool render_expired_frames) {
-    if (!vb->pending_frame) {
+    vb->fps_counter = fps_counter;
-        return false;
+
+    vb->decoding_frame = av_frame_alloc();
+    if (!vb->decoding_frame) {
+        goto error_0;
     }
 
-    vb->tmp_frame = av_frame_alloc();
+    vb->pending_frame = av_frame_alloc();
-    if (!vb->tmp_frame) {
+    if (!vb->pending_frame) {
-        av_frame_free(&vb->pending_frame);
+        goto error_1;
-        return false;
+    }
+
+    vb->rendering_frame = av_frame_alloc();
+    if (!vb->rendering_frame) {
+        goto error_2;
     }
 
     bool ok = sc_mutex_init(&vb->mutex);
     if (!ok) {
-        av_frame_free(&vb->pending_frame);
+        goto error_3;
-        av_frame_free(&vb->tmp_frame);
-        return false;
     }
 
-    // there is initially no frame, so consider it has already been consumed
+    vb->render_expired_frames = render_expired_frames;
+    if (render_expired_frames) {
+        ok = sc_cond_init(&vb->pending_frame_consumed_cond);
+        if (!ok) {
+            sc_mutex_destroy(&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->pending_frame_consumed = true;
 
     return true;
+
+error_3:
+    av_frame_free(&vb->rendering_frame);
+error_2:
+    av_frame_free(&vb->pending_frame);
+error_1:
+    av_frame_free(&vb->decoding_frame);
+error_0:
+    return false;
 }
 
 void
 video_buffer_destroy(struct video_buffer *vb) {
+    if (vb->render_expired_frames) {
+        sc_cond_destroy(&vb->pending_frame_consumed_cond);
+    }
     sc_mutex_destroy(&vb->mutex);
+    av_frame_free(&vb->rendering_frame);
     av_frame_free(&vb->pending_frame);
-    av_frame_free(&vb->tmp_frame);
+    av_frame_free(&vb->decoding_frame);
 }
 
-static inline void
+static void
-swap_frames(AVFrame **lhs, AVFrame **rhs) {
+video_buffer_swap_decoding_frame(struct video_buffer *vb) {
-    AVFrame *tmp = *lhs;
+    sc_mutex_assert(&vb->mutex);
-    *lhs = *rhs;
+    AVFrame *tmp = vb->decoding_frame;
-    *rhs = tmp;
+    vb->decoding_frame = vb->pending_frame;
+    vb->pending_frame = tmp;
 }
 
-bool
+static void
-video_buffer_push(struct video_buffer *vb, const AVFrame *frame,
+video_buffer_swap_rendering_frame(struct video_buffer *vb) {
-                  bool *previous_frame_skipped) {
+    sc_mutex_assert(&vb->mutex);
-    sc_mutex_lock(&vb->mutex);
+    AVFrame *tmp = vb->rendering_frame;
-
+    vb->rendering_frame = vb->pending_frame;
-    // Use a temporary frame to preserve pending_frame in case of error.
+    vb->pending_frame = tmp;
-    // 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;
 }
 
 void
-video_buffer_consume(struct video_buffer *vb, AVFrame *dst) {
+video_buffer_offer_decoded_frame(struct video_buffer *vb,
+                                 bool *previous_frame_skipped) {
+    sc_mutex_lock(&vb->mutex);
+    if (vb->render_expired_frames) {
+        // wait for the current (expired) frame to be consumed
+        while (!vb->pending_frame_consumed && !vb->interrupted) {
+            sc_cond_wait(&vb->pending_frame_consumed_cond, &vb->mutex);
+        }
+    } else if (!vb->pending_frame_consumed) {
+        fps_counter_add_skipped_frame(vb->fps_counter);
+    }
+
+    video_buffer_swap_decoding_frame(vb);
+
+    *previous_frame_skipped = !vb->pending_frame_consumed;
+    vb->pending_frame_consumed = false;
+
+    sc_mutex_unlock(&vb->mutex);
+}
+
+const AVFrame *
+video_buffer_take_rendering_frame(struct video_buffer *vb) {
     sc_mutex_lock(&vb->mutex);
     assert(!vb->pending_frame_consumed);
     vb->pending_frame_consumed = true;
 
-    av_frame_move_ref(dst, vb->pending_frame);
+    fps_counter_add_rendered_frame(vb->fps_counter);
-    // av_frame_move_ref() resets its source frame, so no need to call
-    // av_frame_unref()
 
+    video_buffer_swap_rendering_frame(vb);
+
+    if (vb->render_expired_frames) {
+        // unblock video_buffer_offer_decoded_frame()
+        sc_cond_signal(&vb->pending_frame_consumed_cond);
+    }
     sc_mutex_unlock(&vb->mutex);
+
+    // rendering_frame is only written from this thread, no need to lock
+    return vb->rendering_frame;
+}
+
+void
+video_buffer_interrupt(struct video_buffer *vb) {
+    if (vb->render_expired_frames) {
+        sc_mutex_lock(&vb->mutex);
+        vb->interrupted = true;
+        sc_mutex_unlock(&vb->mutex);
+        // wake up blocking wait
+        sc_cond_signal(&vb->pending_frame_consumed_cond);
+    }
 }

app/src/video_buffer.h

@@ -12,39 +12,57 @@
 typedef struct AVFrame AVFrame;
 
 /**
- * A video buffer holds 1 pending frame, which is the last frame received from
+ * There are 3 frames in memory:
- * the producer (typically, the decoder).
+ *  - one frame is held by the decoder (decoding_frame)
+ *  - one frame is held by the renderer (rendering_frame)
+ *  - one frame is shared between the decoder and the renderer (pending_frame)
  *
- * If a pending frame has not been consumed when the producer pushes a new
+ * The decoder decodes a packet into the decoding_frame (it may takes time).
- * 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.
+ * Once the frame is decoded, it calls video_buffer_offer_decoded_frame(),
- * That's the reason why the callback on_frame_available() does not provide the
+ * which swaps the decoding and pending frames.
- * 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
+ * When the renderer is notified that a new frame is available, it calls
- * the callback if producer pushed a new one in between.
+ * video_buffer_take_rendering_frame() to retrieve it, which swaps the pending
+ * and rendering frames. The frame is valid until the next call, without
+ * blocking the decoder.
  */
 
 struct video_buffer {
+    AVFrame *decoding_frame;
     AVFrame *pending_frame;
-    AVFrame *tmp_frame; // To preserve the pending frame on error
+    AVFrame *rendering_frame;
 
     sc_mutex mutex;
+    bool render_expired_frames;
+    bool interrupted;
 
+    sc_cond pending_frame_consumed_cond;
     bool pending_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
+// set the decoded frame as ready for rendering
-video_buffer_push(struct video_buffer *vb, const AVFrame *frame, bool *skipped);
+// 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
+// the frame is valid until the next call to this function
+const AVFrame *
+video_buffer_take_rendering_frame(struct video_buffer *vb);
+
+// wake up and avoid any blocking call
+void
+video_buffer_interrupt(struct video_buffer *vb);
 
 #endif

app/tests/test_cli.c

@@ -58,6 +58,7 @@ 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 +87,7 @@ 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);

cross_win32.txt

@@ -2,11 +2,11 @@
 
 [binaries]
 name = 'mingw'
-c = 'i686-w64-mingw32-gcc'
+c = '/usr/bin/i686-w64-mingw32-gcc'
-cpp = 'i686-w64-mingw32-g++'
+cpp = '/usr/bin/i686-w64-mingw32-g++'
-ar = 'i686-w64-mingw32-ar'
+ar = '/usr/bin/i686-w64-mingw32-ar'
-strip = 'i686-w64-mingw32-strip'
+strip = '/usr/bin/i686-w64-mingw32-strip'
-pkgconfig = 'i686-w64-mingw32-pkg-config'
+pkgconfig = '/usr/bin/i686-w64-mingw32-pkg-config'
 
 [host_machine]
 system = 'windows'

cross_win64.txt

@@ -2,11 +2,11 @@
 
 [binaries]
 name = 'mingw'
-c = 'x86_64-w64-mingw32-gcc'
+c = '/usr/bin/x86_64-w64-mingw32-gcc'
-cpp = 'x86_64-w64-mingw32-g++'
+cpp = '/usr/bin/x86_64-w64-mingw32-g++'
-ar = 'x86_64-w64-mingw32-ar'
+ar = '/usr/bin/x86_64-w64-mingw32-ar'
-strip = 'x86_64-w64-mingw32-strip'
+strip = '/usr/bin/x86_64-w64-mingw32-strip'
-pkgconfig = 'x86_64-w64-mingw32-pkg-config'
+pkgconfig = '/usr/bin/x86_64-w64-mingw32-pkg-config'
 
 [host_machine]
 system = 'windows'

data/scrcpy-noconsole.vbs

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

meson_options.txt

@@ -3,5 +3,6 @@ option('compile_server', type: 'boolean', value: true, description: 'Build the s
 option('crossbuild_windows', type: 'boolean', value: false, description: 'Build for Windows from Linux')
 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")')

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)
+    public static void configure(boolean disableShowTouches, int restoreStayOn, boolean restoreNormalPowerMode) throws IOException {
-            throws IOException {
+        boolean needProcess = disableShowTouches || restoreStayOn != -1 || restoreNormalPowerMode;
-        boolean needProcess = disableShowTouches || restoreStayOn != -1 || restoreNormalPowerMode || powerOffScreen;
         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,
+    private static void startProcess(boolean disableShowTouches, int restoreStayOn, boolean restoreNormalPowerMode) throws IOException {
-            int displayId) 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 (restoreNormalPowerMode) {
-            if (powerOffScreen) {
+            Ln.i("Restoring normal power mode");
-                Ln.i("Power off screen");
+            if (Device.isScreenOn()) {
-                Device.powerOffScreen(displayId);
-            } else if (restoreNormalPowerMode) {
-                Ln.i("Restoring normal power mode");
                 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) {
+    public boolean injectEvent(InputEvent inputEvent, int mode) {
-        if (!supportsInputEvents(displayId)) {
+        if (!supportsInputEvents()) {
-            return false;
+            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/ScreenEncoder.java

@@ -7,6 +7,7 @@ import android.media.MediaCodec;
 import android.media.MediaCodecInfo;
 import android.media.MediaCodecList;
 import android.media.MediaFormat;
+import android.os.Build;
 import android.os.IBinder;
 import android.view.Surface;
 
@@ -225,7 +226,9 @@ public class ScreenEncoder implements Device.RotationListener {
     }
 
     private static IBinder createDisplay() {
-        return SurfaceControl.createDisplay("scrcpy", true);
+        // Since Android 12, secure displays could not be created with shell permissions anymore
+        boolean secure = Build.VERSION.SDK_INT <= Build.VERSION_CODES.R;
+        return SurfaceControl.createDisplay("scrcpy", secure);
     }
 
     private static void configure(MediaCodec codec, MediaFormat format) {

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();
 
@@ -135,7 +135,7 @@ 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 +185,6 @@ 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 +230,7 @@ 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() + "'");
                 }
             }
         }