5caeab5f6d
The v4l2_sink implementation directly read the internal video_buffer field "pending_frame_consumed", which is protected by the internal video_buffer mutex. But this mutex was not locked, so reads were racy. Lock using the v4l2_sink mutex in addition, and use a separate field to avoid depending on the video_buffer internal data.
40 lines
754 B
C
40 lines
754 B
C
#ifndef SC_V4L2_SINK_H
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#define SC_V4L2_SINK_H
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#include "common.h"
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#include "coords.h"
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#include "trait/frame_sink.h"
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#include "video_buffer.h"
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#include <libavformat/avformat.h>
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struct sc_v4l2_sink {
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struct sc_frame_sink frame_sink; // frame sink trait
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struct video_buffer vb;
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AVFormatContext *format_ctx;
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AVCodecContext *encoder_ctx;
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char *device_name;
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struct size frame_size;
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sc_thread thread;
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sc_mutex mutex;
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sc_cond cond;
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bool has_frame;
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bool stopped;
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bool header_written;
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AVFrame *frame;
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AVPacket *packet;
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};
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bool
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sc_v4l2_sink_init(struct sc_v4l2_sink *vs, const char *device_name,
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struct size frame_size);
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void
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sc_v4l2_sink_destroy(struct sc_v4l2_sink *vs);
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#endif
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