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authorLennart Poettering <lennart@poettering.net>2009-01-31 01:17:09 +0100
committerLennart Poettering <lennart@poettering.net>2009-01-31 01:17:09 +0100
commitb979ab39482a7ebf9eb1725b5a17141d1afce3d8 (patch)
treea015ba79167540c2213c045fa0c6d6f4d77e638d /src/pulse/channelmap.c
parentf725b06f6f76776cfc6749cd97ee783ee0f89ebf (diff)
implement pa_channel_map_can_fade
Diffstat (limited to 'src/pulse/channelmap.c')
-rw-r--r--src/pulse/channelmap.c57
1 files changed, 52 insertions, 5 deletions
diff --git a/src/pulse/channelmap.c b/src/pulse/channelmap.c
index 455bda1b..6ff30c26 100644
--- a/src/pulse/channelmap.c
+++ b/src/pulse/channelmap.c
@@ -647,30 +647,77 @@ int pa_channel_map_superset(const pa_channel_map *a, const pa_channel_map *b) {
int pa_channel_map_can_balance(const pa_channel_map *map) {
unsigned c;
+ pa_bool_t left = FALSE, right = FALSE;
pa_assert(map);
- for (c = 0; c < map->channels; c++)
+ for (c = 0; c < map->channels; c++) {
switch (map->map[c]) {
case PA_CHANNEL_POSITION_LEFT:
- case PA_CHANNEL_POSITION_RIGHT:
case PA_CHANNEL_POSITION_REAR_LEFT:
- case PA_CHANNEL_POSITION_REAR_RIGHT:
case PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER:
- case PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER:
case PA_CHANNEL_POSITION_SIDE_LEFT:
+ case PA_CHANNEL_POSITION_TOP_FRONT_LEFT:
+ case PA_CHANNEL_POSITION_TOP_REAR_LEFT:
+ left = TRUE;
+ break;
+
+ case PA_CHANNEL_POSITION_RIGHT:
+ case PA_CHANNEL_POSITION_REAR_RIGHT:
+ case PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER:
case PA_CHANNEL_POSITION_SIDE_RIGHT:
+ case PA_CHANNEL_POSITION_TOP_FRONT_RIGHT:
+ case PA_CHANNEL_POSITION_TOP_REAR_RIGHT:
+ right = TRUE;
+ break;
+
+ default:
+ ;
+ }
+
+ if (left && right)
+ return 1;
+ }
+
+ return 0;
+}
+
+int pa_channel_map_can_fade(const pa_channel_map *map) {
+ unsigned c;
+ pa_bool_t front = FALSE, rear = FALSE;
+
+ for (c = 0; c < map->channels; c++) {
+
+ switch (map->map[c]) {
+ case PA_CHANNEL_POSITION_FRONT_LEFT:
+ case PA_CHANNEL_POSITION_FRONT_RIGHT:
+ case PA_CHANNEL_POSITION_FRONT_CENTER:
+ case PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER:
+ case PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER:
case PA_CHANNEL_POSITION_TOP_FRONT_LEFT:
case PA_CHANNEL_POSITION_TOP_FRONT_RIGHT:
+ case PA_CHANNEL_POSITION_TOP_FRONT_CENTER:
+ front = TRUE;
+ break;
+
+ case PA_CHANNEL_POSITION_REAR_LEFT:
+ case PA_CHANNEL_POSITION_REAR_RIGHT:
+ case PA_CHANNEL_POSITION_REAR_CENTER:
case PA_CHANNEL_POSITION_TOP_REAR_LEFT:
case PA_CHANNEL_POSITION_TOP_REAR_RIGHT:
- return 1;
+ case PA_CHANNEL_POSITION_TOP_REAR_CENTER:
+ rear = TRUE;
+ break;
default:
;
}
+ if (front && rear)
+ return 1;
+ }
+
return 0;
}