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Wrap SDL thread functions into scrcpy-specific API

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The goal is to expose a consistent API for system tools, and paves the
way to make the "core" independant of SDL in the future.
This commit is contained in:
Romain Vimont
2021-01-31 18:24:35 +01:00
parent 30e619d37f
commit f6320c7e31
24 changed files with 395 additions and 274 deletions
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12
app/src/video_buffer.h
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@@ -4,9 +4,9 @@
#include "common.h"
#include <stdbool.h>
#include <SDL2/SDL_mutex.h>
#include "fps_counter.h"
#include "util/thread.h"
// forward declarations
typedef struct AVFrame AVFrame;
@@ -14,10 +14,10 @@ typedef struct AVFrame AVFrame;
struct video_buffer {
AVFrame *decoding_frame;
AVFrame *rendering_frame;
SDL_mutex *mutex;
sc_mutex mutex;
bool render_expired_frames;
bool interrupted;
SDL_cond *rendering_frame_consumed_cond;
sc_cond rendering_frame_consumed_cond;
bool rendering_frame_consumed;
struct fps_counter *fps_counter;
};
@@ -30,16 +30,16 @@ void
video_buffer_destroy(struct video_buffer *vb);
// set the decoded frame as ready for rendering
// this function locks frames->mutex during its execution
// this function locks vb->mutex during its execution
// the output flag is set to report whether the previous frame has been skipped
void
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!!!
// MUST be called with vb->mutex locked!!!
// the caller is expected to render the returned frame to some texture before
// unlocking frames->mutex
// unlocking vb->mutex
const AVFrame *
video_buffer_consume_rendered_frame(struct video_buffer *vb);