| /* |
| * audio conversion |
| * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
| * Copyright (c) 2008 Peter Ross |
| * |
| * 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 AVCODEC_AUDIOCONVERT_H |
| #define AVCODEC_AUDIOCONVERT_H |
| |
| #include "version.h" |
| |
| /** |
| * @file |
| * Audio format conversion routines |
| * This interface is deprecated and will be dropped in a future |
| * version. You should use the libswresample library instead. |
| */ |
| |
| #if FF_API_AUDIO_CONVERT |
| |
| #include "libavutil/cpu.h" |
| #include "avcodec.h" |
| #include "libavutil/channel_layout.h" |
| |
| struct AVAudioConvert; |
| typedef struct AVAudioConvert AVAudioConvert; |
| |
| /** |
| * Create an audio sample format converter context |
| * @param out_fmt Output sample format |
| * @param out_channels Number of output channels |
| * @param in_fmt Input sample format |
| * @param in_channels Number of input channels |
| * @param[in] matrix Channel mixing matrix (of dimension in_channel*out_channels). Set to NULL to ignore. |
| * @param flags See AV_CPU_FLAG_xx |
| * @return NULL on error |
| * @deprecated See libswresample |
| */ |
| |
| attribute_deprecated |
| AVAudioConvert *av_audio_convert_alloc(enum AVSampleFormat out_fmt, int out_channels, |
| enum AVSampleFormat in_fmt, int in_channels, |
| const float *matrix, int flags); |
| |
| /** |
| * Free audio sample format converter context |
| * @deprecated See libswresample |
| */ |
| |
| attribute_deprecated |
| void av_audio_convert_free(AVAudioConvert *ctx); |
| |
| /** |
| * Convert between audio sample formats |
| * @param[in] out array of output buffers for each channel. set to NULL to ignore processing of the given channel. |
| * @param[in] out_stride distance between consecutive output samples (measured in bytes) |
| * @param[in] in array of input buffers for each channel |
| * @param[in] in_stride distance between consecutive input samples (measured in bytes) |
| * @param len length of audio frame size (measured in samples) |
| * @deprecated See libswresample |
| */ |
| |
| attribute_deprecated |
| int av_audio_convert(AVAudioConvert *ctx, |
| void * const out[6], const int out_stride[6], |
| const void * const in[6], const int in_stride[6], int len); |
| |
| #endif /* FF_API_AUDIO_CONVERT */ |
| |
| #endif /* AVCODEC_AUDIOCONVERT_H */ |
