add: g_return_if_fail (BACON_IS_VIDEO_WIDGET (bvw)); g_return_if_fail (bvw->priv->stream != NULL);
context: bacon_video_widget_set_language (BaconVideoWidget *bvw, int language){	xine_set_param (bvw->priv->stream,			XINE_PARAM_AUDIO_CHANNEL_LOGICAL, language);}