globally change all use of "frame" to refer to audio into "sample".
[ardour.git] / libs / backends / portaudio / audio_utils.h
1 /*
2  * Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program 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
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17  */
18
19 #ifndef AUDIO_UTILS_H
20 #define AUDIO_UTILS_H
21
22 #include <stdint.h>
23
24 inline
25 void
26 deinterleave_audio_data(const float* interleaved_input,
27                         float* output,
28                         uint32_t sample_count,
29                         uint32_t channel,
30                         uint32_t channel_count)
31 {
32         const float* ptr = interleaved_input + channel;
33         while (sample_count-- > 0) {
34                 *output++ = *ptr;
35                 ptr += channel_count;
36         }
37 }
38
39 inline
40 void
41 interleave_audio_data(float* input,
42                       float* interleaved_output,
43                       uint32_t sample_count,
44                       uint32_t channel,
45                       uint32_t channel_count)
46 {
47         float* ptr = interleaved_output + channel;
48         while (sample_count-- > 0) {
49                 *ptr = *input++;
50                 ptr += channel_count;
51         }
52 }
53
54 #endif // AUDIO_UTILS_H