1147759552
There is no reason for these functions to modify the given packets at all. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
56 lines
2.4 KiB
C
56 lines
2.4 KiB
C
/*
|
|
* audio interleaving prototypes and declarations
|
|
*
|
|
* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
|
|
*
|
|
* 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 AVFORMAT_AUDIOINTERLEAVE_H
|
|
#define AVFORMAT_AUDIOINTERLEAVE_H
|
|
|
|
#include "libavutil/fifo.h"
|
|
#include "avformat.h"
|
|
|
|
typedef struct AudioInterleaveContext {
|
|
AVFifoBuffer *fifo;
|
|
unsigned fifo_size; ///< size of currently allocated FIFO
|
|
uint64_t dts; ///< current dts
|
|
int sample_size; ///< size of one sample all channels included
|
|
const int *samples_per_frame; ///< must be 0-terminated
|
|
const int *samples; ///< current samples per frame, pointer to samples_per_frame
|
|
AVRational time_base; ///< time base of output audio packets
|
|
} AudioInterleaveContext;
|
|
|
|
int ff_audio_interleave_init(AVFormatContext *s, const int *samples_per_frame, AVRational time_base);
|
|
void ff_audio_interleave_close(AVFormatContext *s);
|
|
|
|
/**
|
|
* Rechunk audio PCM packets per AudioInterleaveContext->samples_per_frame
|
|
* and interleave them correctly.
|
|
* The first element of AVStream->priv_data must be AudioInterleaveContext
|
|
* when using this function.
|
|
*
|
|
* @param get_packet function will output a packet when streams are correctly interleaved.
|
|
* @param compare_ts function will compare AVPackets and decide interleaving order.
|
|
*/
|
|
int ff_audio_rechunk_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush,
|
|
int (*get_packet)(AVFormatContext *, AVPacket *, AVPacket *, int),
|
|
int (*compare_ts)(AVFormatContext *, const AVPacket *, const AVPacket *));
|
|
|
|
#endif /* AVFORMAT_AUDIOINTERLEAVE_H */
|