audio_data.h
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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_DATA_H
22 #define AVRESAMPLE_AUDIO_DATA_H
23 
24 #include <stdint.h>
25 
26 #include "libavutil/audio_fifo.h"
27 #include "libavutil/log.h"
28 #include "libavutil/samplefmt.h"
29 #include "avresample.h"
30 
34 typedef struct AudioData {
35  const AVClass *class;
38  unsigned int buffer_size;
40  int nb_samples;
42  int channels;
44  int is_planar;
45  int planes;
47  int stride;
48  int read_only;
50  int ptr_align;
52  const char *name;
53 } AudioData;
54 
55 int ff_audio_data_set_channels(AudioData *a, int channels);
56 
76 int ff_audio_data_init(AudioData *a, uint8_t **src, int plane_size, int channels,
78  int read_only, const char *name);
79 
91 AudioData *ff_audio_data_alloc(int channels, int nb_samples,
93  const char *name);
94 
105 
113 void ff_audio_data_free(AudioData **a);
114 
122 int ff_audio_data_copy(AudioData *out, AudioData *in);
123 
136 int ff_audio_data_combine(AudioData *dst, int dst_offset, AudioData *src,
137  int src_offset, int nb_samples);
138 
148 
159 int ff_audio_data_add_to_fifo(AVAudioFifo *af, AudioData *a, int offset,
160  int nb_samples);
161 
172 
173 #endif /* AVRESAMPLE_AUDIO_DATA_H */