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Use delay buffer as a frame source/sink

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The components needing delayed frames (sc_screen and sc_v4l2_sink)
managed a sc_video_buffer instance, which itself embedded a
sc_frame_buffer instance (to keep only the most recent frame).

In theory, these components should not be aware of delaying: they should
just receive AVFrames later, and only handle a sc_frame_buffer.

Therefore, refactor sc_delay_buffer as a frame source (it consumes)
frames) and a frame sink (it produces frames, after some delay), and
plug an instance in the pipeline only when a delay is requested.

This also removes the need for a specific sc_video_buffer.

PR #3757 <https://github.com/Genymobile/scrcpy/pull/3757>
This commit is contained in:
Romain Vimont
2023-03-02 21:30:24 +01:00
parent 974227a3fc
commit 1230149fdd
11 changed files with 150 additions and 320 deletions
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6
app/src/screen.h
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@@ -10,12 +10,12 @@
#include "controller.h"
#include "coords.h"
#include "fps_counter.h"
#include "frame_buffer.h"
#include "input_manager.h"
#include "opengl.h"
#include "trait/key_processor.h"
#include "trait/frame_sink.h"
#include "trait/mouse_processor.h"
#include "video_buffer.h"
struct sc_screen {
struct sc_frame_sink frame_sink; // frame sink trait
@@ -25,7 +25,7 @@ struct sc_screen {
#endif
struct sc_input_manager im;
struct sc_video_buffer vb;
struct sc_frame_buffer fb;
struct sc_fps_counter fps_counter;
// The initial requested window properties
@@ -93,8 +93,6 @@ struct sc_screen_params {
bool fullscreen;
bool start_fps_counter;
sc_tick buffering_time;
};
// initialize screen, create window, renderer and texture (window is hidden)