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make channel naming somewhat RFC2551 compliant

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@491 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-02-16 22:34:52 +00:00
parent 4ad2926eba
commit f49b09df15
2 changed files with 27 additions and 14 deletions
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36
src/polyp/channelmap.c
View file

@ -71,34 +71,46 @@ pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels) {
pa_channel_map_init(m);
m->channels = channels;
/* This is somewhat compatible with RFC3551 */
switch (channels) {
case 1:
m->map[0] = PA_CHANNEL_POSITION_MONO;
return m;
case 8:
m->map[6] = PA_CHANNEL_POSITION_SIDE_LEFT;
m->map[7] = PA_CHANNEL_POSITION_SIDE_RIGHT;
/* Fall through */
case 6:
m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
m->map[1] = PA_CHANNEL_POSITION_SIDE_LEFT;
m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
m->map[3] = PA_CHANNEL_POSITION_FRONT_RIGHT;
m->map[4] = PA_CHANNEL_POSITION_SIDE_RIGHT;
m->map[5] = PA_CHANNEL_POSITION_LFE;
/* Fall through */
return m;
case 5:
m->map[4] = PA_CHANNEL_POSITION_FRONT_CENTER;
/* Fall through */
case 4:
m->map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
m->map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
m->map[3] = PA_CHANNEL_POSITION_REAR_LEFT;
m->map[4] = PA_CHANNEL_POSITION_REAR_RIGHT;
/* Fall through */
case 2:
m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
m->map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
return m;
case 3:
m->map[0] = PA_CHANNEL_POSITION_LEFT;
m->map[1] = PA_CHANNEL_POSITION_RIGHT;
m->map[2] = PA_CHANNEL_POSITION_CENTER;
return m;
case 4:
m->map[0] = PA_CHANNEL_POSITION_LEFT;
m->map[1] = PA_CHANNEL_POSITION_CENTER;
m->map[2] = PA_CHANNEL_POSITION_RIGHT;
m->map[3] = PA_CHANNEL_POSITION_LFE;
return m;
default:
return NULL;

5
src/polyp/channelmap.h
View file

@ -36,10 +36,11 @@ typedef enum {
PA_CHANNEL_POSITION_LEFT,
PA_CHANNEL_POSITION_RIGHT,
PA_CHANNEL_POSITION_FRONT_CENTER,
PA_CHANNEL_POSITION_CENTER,
PA_CHANNEL_POSITION_FRONT_LEFT = PA_CHANNEL_POSITION_LEFT,
PA_CHANNEL_POSITION_FRONT_RIGHT = PA_CHANNEL_POSITION_RIGHT,
PA_CHANNEL_POSITION_FRONT_CENTER = PA_CHANNEL_POSITION_CENTER,
PA_CHANNEL_POSITION_REAR_CENTER,
PA_CHANNEL_POSITION_REAR_LEFT,