FFmpeg/libavformat/audiointerleave.h
Michael Niedermayer 55c49afc42 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  yuv4mpeg: return proper error codes.
  Give all anonymously typedeffed structs in headers a name
  fate: Add parseutils test
  parseutils-test: Drop random colors from parsing test
  vf_pad/scale: use double precision for aspect ratios.
  build: error on variable-length arrays
  ppc: swscale: rework yuv2planeX_altivec()
  ppc: fmtconvert: kill VLA in float_to_int16_interleave_altivec()
  x86: dsputil: kill VLA in gmc_mmx()
  libspeexenc: Updated commentary to reflect recent changes
  libspeexenc: Add an option for enabling DTX
  doc/APIchanges: fill in missing dates and hashes.
  lavr: bump major to 1 and declare it stable.
  lavr: change the type of the data buffers to uint8_t**.
  lavc: deprecate the audio resampling API.

Conflicts:
	cmdutils.h
	configure
	doc/APIchanges
	ffplay.c
	libavcodec/dwt.h
	libavcodec/libspeexenc.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavformat/asf.h
	tests/fate/libavutil.mak
	tests/ref/fate/parseutils

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-06 13:45:08 +02:00

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 *, AVPacket *, AVPacket *));
#endif /* AVFORMAT_AUDIOINTERLEAVE_H */