The decision whether -apad actually does anything is made based on muxer properties, and so more properly belongs there. Filtering code only receives the result.
		
			
				
	
	
		
			119 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			119 lines
		
	
	
		
			3.1 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;
 | 
						|
#if FFMPEG_OPT_VSYNC_DROP
 | 
						|
    int             ts_drop;
 | 
						|
#endif
 | 
						|
 | 
						|
    char           *apad;
 | 
						|
} 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 */
 |