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libavcodec/audioconvert.h

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00001 /*
00002  * audio conversion
00003  * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
00004  * Copyright (c) 2008 Peter Ross
00005  *
00006  * This file is part of FFmpeg.
00007  *
00008  * FFmpeg is free software; you can redistribute it and/or
00009  * modify it under the terms of the GNU Lesser General Public
00010  * License as published by the Free Software Foundation; either
00011  * version 2.1 of the License, or (at your option) any later version.
00012  *
00013  * FFmpeg is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016  * Lesser General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU Lesser General Public
00019  * License along with FFmpeg; if not, write to the Free Software
00020  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00021  */
00022 
00023 #ifndef AVCODEC_AUDIOCONVERT_H
00024 #define AVCODEC_AUDIOCONVERT_H
00025 
00032 #include "libavutil/cpu.h"
00033 #include "avcodec.h"
00034 #include "libavutil/audioconvert.h"
00035 
00036 #if FF_API_OLD_SAMPLE_FMT
00037 
00040 attribute_deprecated
00041 void avcodec_sample_fmt_string(char *buf, int buf_size, int sample_fmt);
00042 
00046 attribute_deprecated
00047 const char *avcodec_get_sample_fmt_name(int sample_fmt);
00048 
00052 attribute_deprecated
00053 enum AVSampleFormat avcodec_get_sample_fmt(const char* name);
00054 #endif
00055 
00056 #if FF_API_OLD_AUDIOCONVERT
00057 
00060 attribute_deprecated
00061 int64_t avcodec_get_channel_layout(const char *name);
00062 
00066 attribute_deprecated
00067 void avcodec_get_channel_layout_string(char *buf, int buf_size, int nb_channels, int64_t channel_layout);
00068 
00072 attribute_deprecated
00073 int avcodec_channel_layout_num_channels(int64_t channel_layout);
00074 #endif
00075 
00083 int64_t avcodec_guess_channel_layout(int nb_channels, enum CodecID codec_id, const char *fmt_name);
00084 
00085 struct AVAudioConvert;
00086 typedef struct AVAudioConvert AVAudioConvert;
00087 
00098 AVAudioConvert *av_audio_convert_alloc(enum AVSampleFormat out_fmt, int out_channels,
00099                                        enum AVSampleFormat in_fmt, int in_channels,
00100                                        const float *matrix, int flags);
00101 
00105 void av_audio_convert_free(AVAudioConvert *ctx);
00106 
00115 int av_audio_convert(AVAudioConvert *ctx,
00116                            void * const out[6], const int out_stride[6],
00117                      const void * const  in[6], const int  in_stride[6], int len);
00118 
00119 #endif /* AVCODEC_AUDIOCONVERT_H */

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