40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
|
|
* 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_DVAUDIO_H
|
|
#define AVCODEC_DVAUDIO_H
|
|
|
|
#include <stdint.h>
|
|
|
|
static inline int dv_get_audio_sample_count(const uint8_t *buffer, int dsf)
|
|
{
|
|
int samples = buffer[0] & 0x3f; /* samples in this frame - min samples */
|
|
|
|
switch ((buffer[3] >> 3) & 0x07) {
|
|
case 0:
|
|
return samples + (dsf ? 1896 : 1580);
|
|
case 1:
|
|
return samples + (dsf ? 1742 : 1452);
|
|
case 2:
|
|
default:
|
|
return samples + (dsf ? 1264 : 1053);
|
|
}
|
|
}
|
|
|
|
#endif /* AVCODEC_DVAUDIO_H */
|