FFmpeg
dvaudio.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 AVCODEC_DVAUDIO_H
20 #define AVCODEC_DVAUDIO_H
21 
22 #include <stdint.h>
23 
24 static inline int dv_get_audio_sample_count(const uint8_t *buffer, int dsf)
25 {
26  int samples = buffer[0] & 0x3f; /* samples in this frame - min samples */
27 
28  switch ((buffer[3] >> 3) & 0x07) {
29  case 0:
30  return samples + (dsf ? 1896 : 1580);
31  case 1:
32  return samples + (dsf ? 1742 : 1452);
33  case 2:
34  default:
35  return samples + (dsf ? 1264 : 1053);
36  }
37 }
38 
39 #endif /* AVCODEC_DVAUDIO_H */
uint8_t
static int dv_get_audio_sample_count(const uint8_t *buffer, int dsf)
Definition: dvaudio.h:24
Filter the word “frame” indicates either a video frame or a group of audio samples
GLuint buffer
Definition: opengl_enc.c:101