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playbin2: rescan audio sinks for volume/mute

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Rescan the audio sinks for the mute and volume properties.
fixes #576180.
This commit is contained in:
Wim Taymans 2009-03-24 10:42:04 +01:00
parent 14be3f41e2
commit 7cf4e3eb15
1 changed files with 55 additions and 10 deletions
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65
gst/playback/gstplaysink.c
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@ -908,6 +908,9 @@ setup_video_chain (GstPlaySink * playsink, gboolean raw, gboolean async)
if (GST_PLAY_CHAIN (chain)->activated == TRUE)
return TRUE;
if (chain->chain.raw != raw)
return FALSE;
/* try to set the sink element to READY again */
ret = gst_element_set_state (chain->sink, GST_STATE_READY);
if (ret == GST_STATE_CHANGE_FAILURE)
@ -984,7 +987,7 @@ gen_text_chain (GstPlaySink * playsink)
/* try to set sync to true but it's no biggie when we can't */
if ((elem =
gst_play_sink_find_property_sinks (playsink, chain->sink,
"async")))
"sync")))
g_object_set (elem, "sync", TRUE, NULL);
} else {
GST_WARNING_OBJECT (playsink,
@ -1285,6 +1288,53 @@ link_failed:
}
}
static gboolean
setup_audio_chain (GstPlaySink * playsink, gboolean raw, gboolean queue)
{
GstElement *elem;
GstPlayAudioChain *chain;
GstStateChangeReturn ret;
chain = playsink->audiochain;
/* if the chain was active we don't do anything */
if (GST_PLAY_CHAIN (chain)->activated == TRUE)
return TRUE;
if (chain->chain.raw != raw)
return FALSE;
/* try to set the sink element to READY again */
ret = gst_element_set_state (chain->sink, GST_STATE_READY);
if (ret == GST_STATE_CHANGE_FAILURE)
return FALSE;
/* check if the sink, or something within the sink, has the volume property.
* If it does we don't need to add a volume element. */
elem = gst_play_sink_find_property_sinks (playsink, chain->sink, "volume");
if (elem) {
chain->volume = elem;
GST_DEBUG_OBJECT (playsink, "the sink has a volume property");
/* use the sink to control the volume */
g_object_set (G_OBJECT (chain->volume), "volume", playsink->volume, NULL);
/* 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. */
chain->mute =
gst_play_sink_find_property_sinks (playsink, chain->sink, "mute");
if (chain->mute) {
GST_DEBUG_OBJECT (playsink, "the sink has a mute property");
}
} else {
/* no volume, we need to add a volume element when we can */
GST_DEBUG_OBJECT (playsink, "the sink has no volume property");
chain->volume = NULL;
chain->mute = NULL;
}
return TRUE;
}
/*
* +-------------------------------------------------------------------+
* | visbin |
@ -1555,7 +1605,6 @@ gst_play_sink_reconfigure (GstPlaySink * playsink)
}
if (need_audio) {
gboolean create_chain = FALSE;
gboolean raw, queue;
GST_DEBUG_OBJECT (playsink, "adding audio");
@ -1574,12 +1623,9 @@ gst_play_sink_reconfigure (GstPlaySink * playsink)
queue = FALSE;
}
if (!playsink->audiochain) {
/* create chain if we don't already have one */
create_chain = TRUE;
} else {
/* we have a chain, check if it's also raw */
if (playsink->audiochain->chain.raw != raw) {
if (playsink->audiochain) {
/* try to reactivate the chain */
if (!setup_audio_chain (playsink, raw, queue)) {
GST_DEBUG_OBJECT (playsink, "removing current audio chain");
if (playsink->audio_tee_asrc) {
gst_element_release_request_pad (playsink->audio_tee,
@ -1591,11 +1637,10 @@ gst_play_sink_reconfigure (GstPlaySink * playsink)
activate_chain (GST_PLAY_CHAIN (playsink->audiochain), FALSE);
free_chain ((GstPlayChain *) playsink->audiochain);
playsink->audiochain = NULL;
create_chain = TRUE;
}
}
if (create_chain) {
if (!playsink->audiochain) {
GST_DEBUG_OBJECT (playsink, "creating new audio chain");
playsink->audiochain = gen_audio_chain (playsink, raw, queue);
}