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e218bde9f9
This has multiple advantages: * The macro has multiple parameters that often have similar or identical values, yet very different meanings (one is the name of the OptionsContext member where the parsed options are stored, the other the name of the variable into which the result is written); this change makes each of these explicit. * The macro returns on failure, which may cause leaks - this was the reason for adding MATCH_PER_STREAM_OPT_CLEAN(), also ost_add() currently leaks encoder_opts. The new function returns failure to its caller, which decides how to deal with it. While that adds a lot of error checks/forwards for now, those will be reduced in following commits. * new code is type- and const- correct Invocations of MATCH_PER_STREAM_OPT() with other types will be converted in following commits.
122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
/*
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* Muxer internal APIs - should not be included outside of ffmpeg_mux*
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef FFTOOLS_FFMPEG_MUX_H
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#define FFTOOLS_FFMPEG_MUX_H
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#include <stdatomic.h>
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#include <stdint.h>
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#include "ffmpeg_sched.h"
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#include "libavformat/avformat.h"
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#include "libavcodec/packet.h"
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#include "libavutil/dict.h"
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#include "libavutil/fifo.h"
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typedef struct MuxStream {
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OutputStream ost;
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// name used for logging
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char log_name[32];
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AVBSFContext *bsf_ctx;
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AVPacket *bsf_pkt;
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AVPacket *pkt;
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EncStats stats;
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int sch_idx;
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int sch_idx_enc;
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int sch_idx_src;
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int sq_idx_mux;
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int64_t max_frames;
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// timestamp from which the streamcopied streams should start,
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// in AV_TIME_BASE_Q;
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// everything before it should be discarded
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int64_t ts_copy_start;
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/* dts of the last packet sent to the muxer, in the stream timebase
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* used for making up missing dts values */
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int64_t last_mux_dts;
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int64_t stream_duration;
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AVRational stream_duration_tb;
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// state for av_rescale_delta() call for audio in write_packet()
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int64_t ts_rescale_delta_last;
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// combined size of all the packets sent to the muxer
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uint64_t data_size_mux;
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int copy_initial_nonkeyframes;
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int copy_prior_start;
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int streamcopy_started;
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#if FFMPEG_OPT_VSYNC_DROP
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int ts_drop;
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#endif
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const char *apad;
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} MuxStream;
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typedef struct Muxer {
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OutputFile of;
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// name used for logging
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char log_name[32];
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AVFormatContext *fc;
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Scheduler *sch;
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unsigned sch_idx;
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// OutputStream indices indexed by scheduler stream indices
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int *sch_stream_idx;
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int nb_sch_stream_idx;
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AVDictionary *opts;
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// used to validate that all encoder avoptions have been actually used
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AVDictionary *enc_opts_used;
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/* filesize limit expressed in bytes */
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int64_t limit_filesize;
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atomic_int_least64_t last_filesize;
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int header_written;
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SyncQueue *sq_mux;
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AVPacket *sq_pkt;
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} Muxer;
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int mux_check_init(void *arg);
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static MuxStream *ms_from_ost(OutputStream *ost)
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{
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return (MuxStream*)ost;
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}
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#endif /* FFTOOLS_FFMPEG_MUX_H */
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