videostreamer.h

#ifndef _VIDEOSTREAMER_H
#define _VIDEOSTREAMER_H

#include <libavformat/avformat.h>
#include <stdbool.h>
#include <stdint.h>

struct VSInput {
	AVFormatContext * format_ctx;
	int video_stream_index;
};

struct VSOutput {
	AVFormatContext * format_ctx;

  // Track the last dts we output. We use it to double check that dts is
  // monotonic.
  //
  // I am not sure if it is available anywhere already. I tried
  // AVStream->info->last_dts and that is apparently not set.
  int64_t last_dts;
};

void
vs_setup(void);

struct VSInput *
vs_open_input(const char * const,
		const char * const, const bool);

void
vs_destroy_input(struct VSInput * const);

struct VSOutput *
vs_open_output(const char * const,
		const char * const, const struct VSInput * const,
		const bool);

void
vs_destroy_output(struct VSOutput * const);

int
vs_read_packet(const struct VSInput *, AVPacket * const,
		const bool);

int
vs_write_packet(const struct VSInput * const,
		struct VSOutput * const, AVPacket * const, const bool);

#endif