repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * audio interleaving prototypes and declarations | |
| 3 | * | |
| 4 | * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com> | |
| 5 | * | |
| 6 | * This file is part of FFmpeg. | |
| 7 | * | |
| 8 | * FFmpeg is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU Lesser General Public | |
| 10 | * License as published by the Free Software Foundation; either | |
| 11 | * version 2.1 of the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | * FFmpeg is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | * Lesser General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU Lesser General Public | |
| 19 | * License along with FFmpeg; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 21 | */ | |
| 22 | ||
| 23 | #ifndef AVFORMAT_AUDIOINTERLEAVE_H | |
| 24 | #define AVFORMAT_AUDIOINTERLEAVE_H | |
| 25 | ||
| 26 | #include "libavutil/fifo.h" | |
| 27 | #include "avformat.h" | |
| 28 | ||
| 29 | typedef struct AudioInterleaveContext { | |
| 30 | AVFifoBuffer *fifo; | |
| 31 | unsigned fifo_size; ///< size of currently allocated FIFO | |
| 32 | uint64_t dts; ///< current dts | |
| 33 | int sample_size; ///< size of one sample all channels included | |
| 34 | const int *samples_per_frame; ///< must be 0-terminated | |
| 35 | const int *samples; ///< current samples per frame, pointer to samples_per_frame | |
| 36 | AVRational time_base; ///< time base of output audio packets | |
| 37 | } AudioInterleaveContext; | |
| 38 | ||
| 39 | int ff_audio_interleave_init(AVFormatContext *s, const int *samples_per_frame, AVRational time_base); | |
| 40 | void ff_audio_interleave_close(AVFormatContext *s); | |
| 41 | ||
| 42 | /** | |
| 43 | * Rechunk audio PCM packets per AudioInterleaveContext->samples_per_frame | |
| 44 | * and interleave them correctly. | |
| 45 | * The first element of AVStream->priv_data must be AudioInterleaveContext | |
| 46 | * when using this function. | |
| 47 | * | |
| 48 | * @param get_packet function will output a packet when streams are correctly interleaved. | |
| 49 | * @param compare_ts function will compare AVPackets and decide interleaving order. | |
| 50 | */ | |
| 51 | int ff_audio_rechunk_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush, | |
| 52 | int (*get_packet)(AVFormatContext *, AVPacket *, AVPacket *, int), | |
| 53 | int (*compare_ts)(AVFormatContext *, AVPacket *, AVPacket *)); | |
| 54 | ||
| 55 | #endif /* AVFORMAT_AUDIOINTERLEAVE_H */ |