Libav 0.7.1
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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 Libav. 00007 * 00008 * Libav 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 * Libav 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 Libav; 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 */