/* * 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 */