rem: gtk_xine_set_audio_channel (GtkXine *gtx, gint audio_channel)
add: gtk_xine_set_audio_channel (GtkXine *gtx, int audio_channel)
context: gtk_xine_set_audio_channel (GtkXine *gtx, gint audio_channel){	g_return_if_fail (gtx != NULL);	g_return_if_fail (GTK_IS_XINE (gtx));	g_return_if_fail (gtx->priv->xine != NULL);	xine_set_param (gtx->priv->stream,			XINE_PARAM_AUDIO_CHANNEL_LOGICAL, audio_channel);}