EXPORT_C
#endif
void
gst_mixer_message_parse_record_toggled (GstMessage * message,
GstMixerTrack ** track, gboolean * record)
{
const GstStructure *s;
g_return_if_fail (gst_mixer_message_is_mixer_message (message));
g_return_if_fail (GST_MIXER_MESSAGE_HAS_TYPE (message, RECORD_TOGGLED));
s = gst_message_get_structure (message);
if (track) {
const GValue *v = gst_structure_get_value (s, "track");
g_return_if_fail (v != NULL);
*track = (GstMixerTrack *) g_value_get_object (v);
g_return_if_fail (GST_IS_MIXER_TRACK (*track));
}
if (record)
g_return_if_fail (gst_structure_get_boolean (s, "record", record));
}
GtkWidget*
xfce_mixer_option_new (GstElement *card,
GstMixerTrack *track)
{
XfceMixerOption *option;
g_return_val_if_fail (GST_IS_MIXER (card), NULL);
g_return_val_if_fail (GST_IS_MIXER_TRACK (track), NULL);
option = g_object_new (TYPE_XFCE_MIXER_OPTION, NULL);
option->card = card;
option->track = track;
xfce_mixer_option_create_contents (option);
return GTK_WIDGET (option);
}
EXPORT_C
#endif
void
gst_mixer_message_parse_volume_changed (GstMessage * message,
GstMixerTrack ** track, gint ** volumes, gint * num_channels)
{
const GstStructure *s;
g_return_if_fail (gst_mixer_message_is_mixer_message (message));
g_return_if_fail (GST_MIXER_MESSAGE_HAS_TYPE (message, VOLUME_CHANGED));
s = gst_message_get_structure (message);
if (track) {
const GValue *v = gst_structure_get_value (s, "track");
g_return_if_fail (v != NULL);
*track = (GstMixerTrack *) g_value_get_object (v);
g_return_if_fail (GST_IS_MIXER_TRACK (*track));
}
if (volumes || num_channels) {
gint n_chans, i;
const GValue *v = gst_structure_get_value (s, "volumes");
g_return_if_fail (v != NULL);
g_return_if_fail (GST_VALUE_HOLDS_ARRAY (v));
n_chans = gst_value_array_get_size (v);
if (num_channels)
*num_channels = n_chans;
if (volumes) {
*volumes = g_new (gint, n_chans);
for (i = 0; i < n_chans; i++) {
const GValue *e = gst_value_array_get_value (v, i);
g_return_if_fail (e != NULL && G_VALUE_HOLDS_INT (e));
(*volumes)[i] = g_value_get_int (e);
}
}
}
}