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55 lines
2.4 KiB
55 lines
2.4 KiB
/* |
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* audio interleaving prototypes and declarations |
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* |
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* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com> |
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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_AUDIOINTERLEAVE_H |
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#define AVFORMAT_AUDIOINTERLEAVE_H |
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#include "libavutil/fifo.h" |
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#include "avformat.h" |
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typedef struct AudioInterleaveContext { |
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AVFifoBuffer *fifo; |
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unsigned fifo_size; ///< size of currently allocated FIFO |
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uint64_t dts; ///< current dts |
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int sample_size; ///< size of one sample all channels included |
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const int *samples_per_frame; ///< must be 0-terminated |
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const int *samples; ///< current samples per frame, pointer to samples_per_frame |
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AVRational time_base; ///< time base of output audio packets |
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} AudioInterleaveContext; |
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int ff_audio_interleave_init(AVFormatContext *s, const int *samples_per_frame, AVRational time_base); |
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void ff_audio_interleave_close(AVFormatContext *s); |
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/** |
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* Rechunk audio PCM packets per AudioInterleaveContext->samples_per_frame |
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* and interleave them correctly. |
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* The first element of AVStream->priv_data must be AudioInterleaveContext |
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* when using this function. |
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* |
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* @param get_packet function will output a packet when streams are correctly interleaved. |
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* @param compare_ts function will compare AVPackets and decide interleaving order. |
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*/ |
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int ff_audio_rechunk_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush, |
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int (*get_packet)(AVFormatContext *, AVPacket *, AVPacket *, int), |
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int (*compare_ts)(AVFormatContext *, const AVPacket *, const AVPacket *)); |
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#endif /* AVFORMAT_AUDIOINTERLEAVE_H */
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