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https://github.com/Genymobile/scrcpy.git
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79278961b9
To minimize latency (at the cost of jitter), scrcpy always displays a frame as soon as it available, without waiting. However, when recording (--record), it still writes the captured timestamps to the output file, so that the recorded file can be played correctly without jitter. Some real-time use cases might benefit from adding a small latency to compensate for jitter too. For example, few tens of seconds of latency for live-streaming are not important, but jitter is noticeable. Therefore, implement a buffering mechanism (disabled by default) to add a configurable latency delay. PR #2417 <https://github.com/Genymobile/scrcpy/issues/2417>
73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
#ifndef SC_VIDEO_BUFFER_H
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#define SC_VIDEO_BUFFER_H
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#include "common.h"
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#include <stdbool.h>
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#include "clock.h"
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#include "frame_buffer.h"
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#include "util/queue.h"
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#include "util/thread.h"
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#include "util/tick.h"
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// forward declarations
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typedef struct AVFrame AVFrame;
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struct sc_video_buffer_frame {
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AVFrame *frame;
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struct sc_video_buffer_frame *next;
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};
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struct sc_video_buffer_frame_queue SC_QUEUE(struct sc_video_buffer_frame);
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struct sc_video_buffer {
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struct sc_frame_buffer fb;
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sc_tick buffering_time;
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// only if buffering_time > 0
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struct {
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sc_thread thread;
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sc_mutex mutex;
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sc_cond queue_cond;
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sc_cond wait_cond;
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struct sc_clock clock;
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struct sc_video_buffer_frame_queue queue;
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bool stopped;
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} b; // buffering
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const struct sc_video_buffer_callbacks *cbs;
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void *cbs_userdata;
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};
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struct sc_video_buffer_callbacks {
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void (*on_new_frame)(struct sc_video_buffer *vb, bool previous_skipped,
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void *userdata);
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};
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bool
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sc_video_buffer_init(struct sc_video_buffer *vb, sc_tick buffering_time,
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const struct sc_video_buffer_callbacks *cbs,
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void *cbs_userdata);
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bool
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sc_video_buffer_start(struct sc_video_buffer *vb);
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void
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sc_video_buffer_stop(struct sc_video_buffer *vb);
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void
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sc_video_buffer_join(struct sc_video_buffer *vb);
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void
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sc_video_buffer_destroy(struct sc_video_buffer *vb);
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bool
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sc_video_buffer_push(struct sc_video_buffer *vb, const AVFrame *frame);
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void
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sc_video_buffer_consume(struct sc_video_buffer *vb, AVFrame *dst);
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#endif
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