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playsink: Proxy notify::volume and notify::mute from the volume/mute elements (or sinks)

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Fixes bug #600027.
This commit is contained in:
Sebastian Dröge 2009-10-29 14:30:31 +01:00
parent de1db5ccbd
commit d85dadc122
1 changed files with 36 additions and 0 deletions
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36
gst/playback/gstplaysink.c
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@ -1421,6 +1421,19 @@ gen_subp_chain (GstPlaySink * playsink)
return chain;
}
static void
notify_volume_cb (GObject * selector, GParamSpec * pspec,
GstPlaySink * playsink)
{
g_object_notify (G_OBJECT (playsink), "volume");
}
static void
notify_mute_cb (GObject * selector, GParamSpec * pspec, GstPlaySink * playsink)
{
g_object_notify (G_OBJECT (playsink), "mute");
}
/* make the chain that contains the elements needed to perform
* audio playback.
*
@ -1497,6 +1510,9 @@ gen_audio_chain (GstPlaySink * playsink, gboolean raw, gboolean queue)
if (elem) {
chain->volume = elem;
g_signal_connect (chain->volume, "notify::volume",
G_CALLBACK (notify_volume_cb), playsink);
GST_DEBUG_OBJECT (playsink, "the sink has a volume property");
have_volume = TRUE;
chain->sink_volume = TRUE;
@ -1507,6 +1523,8 @@ gen_audio_chain (GstPlaySink * playsink, gboolean raw, gboolean queue)
gst_play_sink_find_property_sinks (playsink, chain->sink, "mute");
if (chain->mute) {
GST_DEBUG_OBJECT (playsink, "the sink has a mute property");
g_signal_connect (chain->mute, "notify::mute",
G_CALLBACK (notify_mute_cb), playsink);
}
/* use the sink to control the volume and mute */
if (playsink->volume_changed) {
@ -1575,6 +1593,11 @@ gen_audio_chain (GstPlaySink * playsink, gboolean raw, gboolean queue)
} else {
have_volume = TRUE;
g_signal_connect (chain->volume, "notify::volume",
G_CALLBACK (notify_volume_cb), playsink);
g_signal_connect (chain->mute, "notify::mute",
G_CALLBACK (notify_mute_cb), playsink);
/* volume also has the mute property */
chain->mute = chain->volume;
@ -1687,6 +1710,9 @@ setup_audio_chain (GstPlaySink * playsink, gboolean raw, gboolean queue)
/* use the sink to control the volume */
g_object_set (G_OBJECT (chain->volume), "volume", playsink->volume, NULL);
}
g_signal_connect (chain->volume, "notify::volume",
G_CALLBACK (notify_volume_cb), playsink);
/* if the sink also has a mute property we can use this as well. We'll only
* use the mute property if there is a volume property. We can simulate the
* mute with the volume otherwise. */
@ -1694,12 +1720,22 @@ setup_audio_chain (GstPlaySink * playsink, gboolean raw, gboolean queue)
gst_play_sink_find_property_sinks (playsink, chain->sink, "mute");
if (chain->mute) {
GST_DEBUG_OBJECT (playsink, "the sink has a mute property");
g_signal_connect (chain->mute, "notify::mute",
G_CALLBACK (notify_mute_cb), playsink);
}
} else {
/* no volume, we need to add a volume element when we can */
GST_DEBUG_OBJECT (playsink, "the sink has no volume property");
if (!raw) {
GST_LOG_OBJECT (playsink, "non-raw format, can't do soft volume control");
if (chain->volume)
g_signal_handlers_disconnect_by_func (chain->volume, notify_volume_cb,
playsink);
if (chain->mute)
g_signal_handlers_disconnect_by_func (chain->mute, notify_mute_cb,
playsink);
chain->volume = NULL;
chain->mute = NULL;
} else {