guint channels = gst_discoverer_audio_info_get_channels (ainfo);
GEnumClass *enum_class = g_type_class_ref (GST_TYPE_AUDIO_CHANNEL_POSITION);
guint i;
+ guint64 channel_mask;
if (channels == 0)
goto done;
- gst_audio_channel_positions_from_mask (channels,
- gst_discoverer_audio_info_get_channel_mask (ainfo), position);
+ channel_mask = gst_discoverer_audio_info_get_channel_mask (ainfo);
- for (i = 0; i < channels; i++) {
- GEnumValue *value = g_enum_get_value (enum_class, position[i]);
- my_g_string_append_printf (s, 0, "%s%s", value->value_nick,
- i + 1 == channels ? "" : ", ");
+ if (channel_mask != 0) {
+ gst_audio_channel_positions_from_mask (channels, channel_mask, position);
+
+ for (i = 0; i < channels; i++) {
+ GEnumValue *value = g_enum_get_value (enum_class, position[i]);
+ my_g_string_append_printf (s, 0, "%s%s", value->value_nick,
+ i + 1 == channels ? "" : ", ");
+ }
+ } else {
+ g_string_append (s, "unknown layout");
}
g_type_class_unref (enum_class);