1f8ba1ca79
Ref: <https://github.com/Genymobile/scrcpy/issues/829> Suggested-by: Louis Kruger <louisk@gmail.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
#ifndef VIDEO_BUFFER_H
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#define VIDEO_BUFFER_H
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#include <stdbool.h>
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#include <SDL2/SDL_mutex.h>
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#include "config.h"
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#include "fps_counter.h"
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// forward declarations
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typedef struct AVFrame AVFrame;
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struct video_buffer {
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AVFrame *decoding_frame;
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AVFrame *rendering_frame;
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SDL_mutex *mutex;
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bool render_expired_frames;
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bool interrupted;
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SDL_cond *rendering_frame_consumed_cond;
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bool rendering_frame_consumed;
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struct fps_counter *fps_counter;
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};
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bool
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video_buffer_init(struct video_buffer *vb, struct fps_counter *fps_counter,
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bool render_expired_frames);
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void
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video_buffer_destroy(struct video_buffer *vb);
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// set the decoded frame as ready for rendering
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// this function locks frames->mutex during its execution
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// the output flag is set to report whether the previous frame has been skipped
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void
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video_buffer_offer_decoded_frame(struct video_buffer *vb,
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bool *previous_frame_skipped);
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// mark the rendering frame as consumed and return it
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// MUST be called with frames->mutex locked!!!
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// the caller is expected to render the returned frame to some texture before
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// unlocking frames->mutex
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const AVFrame *
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video_buffer_consume_rendered_frame(struct video_buffer *vb);
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// wake up and avoid any blocking call
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void
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video_buffer_interrupt(struct video_buffer *vb);
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#endif
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