blob: b2e47fe4a330be0a9f65e0c2948b8402b826e1c2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
#ifndef foostreamutilhfoo
#define foostreamutilhfoo
/***
This file is part of PulseAudio.
Copyright 2013 Intel Corporation
PulseAudio 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.
PulseAudio 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
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#include <pulse/format.h>
#include <pulse/volume.h>
/* This is a helper function that is called from pa_sink_input_new() and
* pa_source_output_new(). The job of this function is to figure out what
* channel map should be used for interpreting the volume that was set for the
* stream. The channel map that the client intended for the volume may be
* different than the final stream channel map, because the client may want the
* server to decide the stream channel map.
*
* volume is the volume for which the channel map should be figured out.
*
* original_map is the channel map that is set in the new data struct's
* channel_map field. If the channel map hasn't been set in the new data, then
* original_map should be NULL.
*
* format is the negotiated format for the stream. It's used as a fallback if
* original_map is not available.
*
* On success, the result is saved in volume_map. It's possible that this
* function fails to figure out the right channel map for the volume, in which
* case a negative error code is returned. */
int pa_stream_get_volume_channel_map(const pa_cvolume *volume, const pa_channel_map *original_map, const pa_format_info *format,
pa_channel_map *volume_map);
#endif
|
