oss: document lacking multichannel support for oss

1 files changed, 3 insertions, 0 deletions

diff --git a/src/oss.c b/src/oss.c
index 866c863..6135780 100644
--- a/src/oss.c
+++ b/src/oss.c
@@ -234,6 +234,9 @@ static int open_oss(ca_context *c, struct outstanding *out) {
     ca_return_val_if_fail(c, CA_ERROR_INVALID);
     ca_return_val_if_fail(c->private, CA_ERROR_STATE);
     ca_return_val_if_fail(out, CA_ERROR_INVALID);
+
+    /* In OSS we have no way to configure a channel mapping for
+     * multichannel streams. We cannot support those files hence */
     ca_return_val_if_fail(ca_sound_file_get_nchannels(out->file) <= 2, CA_ERROR_NOTSUPPORTED);
 
     p = PRIVATE(c);