audio_convert.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
3  *
4  * This file is part of Libav.
5  *
6  * Libav is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * Libav is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with Libav; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVRESAMPLE_AUDIO_CONVERT_H
22 #define AVRESAMPLE_AUDIO_CONVERT_H
23 
24 #include "libavutil/samplefmt.h"
25 #include "avresample.h"
26 #include "audio_data.h"
27 
28 typedef struct AudioConvert AudioConvert;
29 
50  enum AVSampleFormat in_fmt, int channels,
51  int ptr_align, int samples_align,
52  const char *descr, void *conv);
53 
67  int channels, int sample_rate);
68 
77 
95 
96 /* arch-specific initialization functions */
97 
100 
101 #endif /* AVRESAMPLE_AUDIO_CONVERT_H */
AVAudioResampleContext * avr
Definition: audio_convert.c:50
Audio buffer used for intermediate storage between conversion phases.
Definition: oss_audio.c:46
int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in)
Convert audio data from one sample format to another.
void ff_audio_convert_init_x86(AudioConvert *ac)
void ff_audio_convert_init_arm(AudioConvert *ac)
int samples_align
void ff_audio_convert_free(AudioConvert **ac)
Free AudioConvert.
external API header
AudioConvert * ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate)
Allocate and initialize AudioConvert context for sample format conversion.
void ff_audio_convert_set_func(AudioConvert *ac, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int ptr_align, int samples_align, const char *descr, void *conv)
Set conversion function if the parameters match.
Definition: audio_convert.c:70
AVSampleFormat
Audio Sample Formats.
Definition: samplefmt.h:49
enum AVSampleFormat out_fmt
Definition: audio_convert.c:53
enum AVSampleFormat in_fmt
Definition: audio_convert.c:52