ffmpeg/fftools/ffmpeg_mux.h

114 lines
2.7 KiB
C

/*
* Muxer internal APIs - should not be included outside of ffmpeg_mux*
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef FFTOOLS_FFMPEG_MUX_H
#define FFTOOLS_FFMPEG_MUX_H
#include <stdatomic.h>
#include <stdint.h>
#include "ffmpeg_sched.h"
#include "libavformat/avformat.h"
#include "libavcodec/packet.h"
#include "libavutil/dict.h"
#include "libavutil/fifo.h"
typedef struct MuxStream {
OutputStream ost;
// name used for logging
char log_name[32];
AVBSFContext *bsf_ctx;
AVPacket *bsf_pkt;
AVPacket *pkt;
EncStats stats;
int sch_idx;
int sch_idx_enc;
int sch_idx_src;
int sq_idx_mux;
int64_t max_frames;
// timestamp from which the streamcopied streams should start,
// in AV_TIME_BASE_Q;
// everything before it should be discarded
int64_t ts_copy_start;
/* dts of the last packet sent to the muxer, in the stream timebase
* used for making up missing dts values */
int64_t last_mux_dts;
int64_t stream_duration;
AVRational stream_duration_tb;
// state for av_rescale_delta() call for audio in write_packet()
int64_t ts_rescale_delta_last;
// combined size of all the packets sent to the muxer
uint64_t data_size_mux;
int copy_initial_nonkeyframes;
int copy_prior_start;
int streamcopy_started;
} MuxStream;
typedef struct Muxer {
OutputFile of;
// name used for logging
char log_name[32];
AVFormatContext *fc;
Scheduler *sch;
unsigned sch_idx;
// OutputStream indices indexed by scheduler stream indices
int *sch_stream_idx;
int nb_sch_stream_idx;
AVDictionary *opts;
/* filesize limit expressed in bytes */
int64_t limit_filesize;
atomic_int_least64_t last_filesize;
int header_written;
SyncQueue *sq_mux;
AVPacket *sq_pkt;
} Muxer;
int mux_check_init(void *arg);
static MuxStream *ms_from_ost(OutputStream *ost)
{
return (MuxStream*)ost;
}
#endif /* FFTOOLS_FFMPEG_MUX_H */