FFmpeg  1.2.12
samplefmt.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVUTIL_SAMPLEFMT_H
20 #define AVUTIL_SAMPLEFMT_H
21 
22 #include <stdint.h>
23 
24 #include "avutil.h"
25 #include "attributes.h"
26 
56 
62 
64 };
65 
70 const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
71 
76 enum AVSampleFormat av_get_sample_fmt(const char *name);
77 
84 enum AVSampleFormat av_get_alt_sample_fmt(enum AVSampleFormat sample_fmt, int planar);
85 
96 
107 
120 char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
121 
122 #if FF_API_GET_BITS_PER_SAMPLE_FMT
123 
127 int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt);
128 #endif
129 
137 int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt);
138 
145 int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt);
146 
157 int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
158  enum AVSampleFormat sample_fmt, int align);
159 
190 int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
191  const uint8_t *buf,
192  int nb_channels, int nb_samples,
193  enum AVSampleFormat sample_fmt, int align);
194 
213 int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
214  int nb_samples, enum AVSampleFormat sample_fmt, int align);
215 
227 int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
228  int src_offset, int nb_samples, int nb_channels,
229  enum AVSampleFormat sample_fmt);
230 
240 int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
241  int nb_channels, enum AVSampleFormat sample_fmt);
242 
243 #endif /* AVUTIL_SAMPLEFMT_H */