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-rw-r--r--src/polypcore/modargs.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/src/polypcore/modargs.c b/src/polypcore/modargs.c
index 6bd13c3b..6a02df0a 100644
--- a/src/polypcore/modargs.c
+++ b/src/polypcore/modargs.c
@@ -259,3 +259,50 @@ int pa_modargs_get_sample_spec(pa_modargs *ma, pa_sample_spec *rss) {
return 0;
}
+
+int pa_modargs_get_channel_map(pa_modargs *ma, pa_channel_map *rmap) {
+ pa_channel_map map;
+ const char *cm;
+
+ assert(ma);
+ assert(rmap);
+
+ map = *rmap;
+
+ if ((cm = pa_modargs_get_value(ma, "channel_map", NULL)))
+ if (!pa_channel_map_parse(&map, cm))
+ return -1;
+
+ if (!pa_channel_map_valid(&map))
+ return -1;
+
+ *rmap = map;
+ return 0;
+}
+
+int pa_modargs_get_sample_spec_and_channel_map(pa_modargs *ma, pa_sample_spec *rss, pa_channel_map *rmap) {
+ pa_sample_spec ss;
+ pa_channel_map map;
+
+ assert(ma);
+ assert(rss);
+ assert(rmap);
+
+ ss = *rss;
+
+ if (pa_modargs_get_sample_spec(ma, &ss) < 0)
+ return -1;
+
+ pa_channel_map_init_auto(&map, ss.channels);
+
+ if (pa_modargs_get_channel_map(ma, &map) < 0)
+ return -1;
+
+ if (map.channels != ss.channels)
+ return -1;
+
+ *rmap = map;
+ *rss = ss;
+
+ return 0;
+}