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/* |
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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 "thread_queue.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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#include "libavutil/thread.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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/* the packets are buffered here until the muxer is ready to be initialized */ |
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AVFifo *muxing_queue; |
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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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int64_t max_frames; |
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/* |
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* The size of the AVPackets' buffers in queue. |
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* Updated when a packet is either pushed or pulled from the queue. |
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*/ |
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size_t muxing_queue_data_size; |
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int max_muxing_queue_size; |
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/* Threshold after which max_muxing_queue_size will be in effect */ |
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size_t muxing_queue_data_threshold; |
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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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} 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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pthread_t thread; |
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ThreadQueue *tq; |
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AVDictionary *opts; |
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int thread_queue_size; |
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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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/* whether we want to print an SDP, set in of_open() */ |
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extern int want_sdp; |
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int mux_check_init(Muxer *mux); |
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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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