mirror of https://git.ffmpeg.org/ffmpeg.git
89 lines
3.1 KiB
C
89 lines
3.1 KiB
C
/*
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* copyright (c) 2001 Fabrice Bellard
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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 AVFORMAT_MUX_H
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#define AVFORMAT_MUX_H
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#include <stdint.h>
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#include "libavcodec/packet.h"
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#include "avformat.h"
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/**
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* Add packet to an AVFormatContext's packet_buffer list, determining its
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* interleaved position using compare() function argument.
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* @return 0 on success, < 0 on error. pkt will always be blank on return.
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*/
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int ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
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int (*compare)(AVFormatContext *, const AVPacket *, const AVPacket *));
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/**
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* Interleave an AVPacket per dts so it can be muxed.
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* See the documentation of AVOutputFormat.interleave_packet for details.
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*/
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int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *pkt,
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int flush, int has_packet);
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/**
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* Interleave packets directly in the order in which they arrive
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* without any sort of buffering.
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*/
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int ff_interleave_packet_passthrough(AVFormatContext *s, AVPacket *pkt,
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int flush, int has_packet);
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/**
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* Find the next packet in the interleaving queue for the given stream.
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*
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* @return a pointer to a packet if one was found, NULL otherwise.
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*/
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const AVPacket *ff_interleaved_peek(AVFormatContext *s, int stream);
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int ff_get_muxer_ts_offset(AVFormatContext *s, int stream_index, int64_t *offset);
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/**
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* Write a packet to another muxer than the one the user originally
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* intended. Useful when chaining muxers, where one muxer internally
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* writes a received packet to another muxer.
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*
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* @param dst the muxer to write the packet to
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* @param dst_stream the stream index within dst to write the packet to
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* @param pkt the packet to be written. It will be returned blank when
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* av_interleaved_write_frame() is used, unchanged otherwise.
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* @param src the muxer the packet originally was intended for
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* @param interleave 0->use av_write_frame, 1->av_interleaved_write_frame
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* @return the value av_write_frame returned
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*/
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int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt,
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AVFormatContext *src, int interleave);
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/**
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* Flags for AVFormatContext.write_uncoded_frame()
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*/
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enum AVWriteUncodedFrameFlags {
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/**
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* Query whether the feature is possible on this stream.
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* The frame argument is ignored.
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*/
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AV_WRITE_UNCODED_FRAME_QUERY = 0x0001,
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};
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#endif /* AVFORMAT_MUX_H */
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