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gst/playback/gstplaybin2.c: Enable vis setting.

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Original commit message from CVS:
* gst/playback/gstplaybin2.c: (gst_play_bin_set_property):
Enable vis setting.
* gst/playback/gstplaysink.c: (gst_play_sink_init),
(gst_play_sink_dispose), (gst_play_sink_vis_unblocked),
(gst_play_sink_vis_blocked), (gst_play_sink_set_vis_plugin),
(gen_vis_chain):
Implement vis switching while playing.
This commit is contained in:
Wim Taymans 2008-02-29 12:26:48 +00:00
parent 3fb3c580b1
commit 472162d1b1
3 changed files with 112 additions and 195 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2008-02-29 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/playback/gstplaybin2.c: (gst_play_bin_set_property):
Enable vis setting.
* gst/playback/gstplaysink.c: (gst_play_sink_init),
(gst_play_sink_dispose), (gst_play_sink_vis_unblocked),
(gst_play_sink_vis_blocked), (gst_play_sink_set_vis_plugin),
(gen_vis_chain):
Implement vis switching while playing.
2008-02-28 David Schleef <ds@schleef.org>
* gst-libs/gst/riff/riff-media.c: Add Dirac mapping

2
gst/playback/gstplaybin2.c
View file

@ -1157,6 +1157,8 @@ gst_play_bin_set_property (GObject * object, guint prop_id,
case PROP_AUDIO_SINK:
break;
case PROP_VIS_PLUGIN:
gst_play_sink_set_vis_plugin (playbin->playsink,
g_value_get_object (value));
break;
case PROP_VOLUME:
gst_play_sink_set_volume (playbin->playsink, g_value_get_double (value));

288
gst/playback/gstplaysink.c
View file

@ -72,8 +72,12 @@ typedef struct
GstElement *queue;
GstElement *conv;
GstElement *resample;
GstPad *blockpad; /* srcpad of resample, used for switching the vis */
GstPad *vissinkpad; /* visualisation sinkpad, */
GstElement *vis;
GstPad *srcpad;
GstPad *vissrcpad; /* visualisation srcpad, */
GstPad *srcpad; /* outgoing srcpad, used to connect to the next
* chain */
} GstPlayVisChain;
#define GST_PLAY_SINK_GET_LOCK(playsink) (((GstPlaySink *)playsink)->lock)
@ -115,9 +119,6 @@ struct _GstPlaySink
/* internal elements */
GstElement *textoverlay_element;
GstElement *pending_visualisation;
GstElement *fakesink;
};
struct _GstPlaySinkClass
@ -256,7 +257,6 @@ gst_play_sink_init (GstPlaySink * playsink)
playsink->video_sink = NULL;
playsink->audio_sink = NULL;
playsink->visualisation = NULL;
playsink->pending_visualisation = NULL;
playsink->textoverlay_element = NULL;
playsink->volume = 1.0;
playsink->font_desc = NULL;
@ -287,11 +287,6 @@ gst_play_sink_dispose (GObject * object)
gst_object_unref (playsink->visualisation);
playsink->visualisation = NULL;
}
if (playsink->pending_visualisation != NULL) {
gst_element_set_state (playsink->pending_visualisation, GST_STATE_NULL);
gst_object_unref (playsink->pending_visualisation);
playsink->pending_visualisation = NULL;
}
if (playsink->textoverlay_element != NULL) {
gst_object_unref (playsink->textoverlay_element);
playsink->textoverlay_element = NULL;
@ -314,125 +309,6 @@ gst_play_sink_finalize (GObject * object)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_play_sink_vis_unblocked (GstPad * tee_pad, gboolean blocked,
gpointer user_data)
{
GstPlaySink *playsink = GST_PLAY_SINK (user_data);
if (playsink->pending_visualisation)
gst_pad_set_blocked_async (tee_pad, FALSE, gst_play_sink_vis_unblocked,
playsink);
}
static void
gst_play_sink_vis_blocked (GstPad * tee_pad, gboolean blocked,
gpointer user_data)
{
GstPlaySink *playsink = GST_PLAY_SINK (user_data);
GstBin *vis_bin = NULL;
GstPad *vis_sink_pad = NULL, *vis_src_pad = NULL, *vqueue_pad = NULL;
GstState bin_state;
GstElement *pending_visualisation;
GST_OBJECT_LOCK (playsink);
pending_visualisation = playsink->pending_visualisation;
playsink->pending_visualisation = NULL;
GST_OBJECT_UNLOCK (playsink);
/* We want to disable visualisation */
if (!GST_IS_ELEMENT (pending_visualisation)) {
/* Set visualisation element to READY */
gst_element_set_state (playsink->visualisation, GST_STATE_READY);
goto beach;
}
vis_bin =
GST_BIN_CAST (gst_object_get_parent (GST_OBJECT_CAST (playsink->
visualisation)));
if (!GST_IS_BIN (vis_bin) || !GST_IS_PAD (tee_pad)) {
goto beach;
}
vis_src_pad = gst_element_get_pad (playsink->visualisation, "src");
vis_sink_pad = gst_pad_get_peer (tee_pad);
/* Can be fakesink */
if (GST_IS_PAD (vis_src_pad)) {
vqueue_pad = gst_pad_get_peer (vis_src_pad);
}
if (!GST_IS_PAD (vis_sink_pad)) {
goto beach;
}
/* Check the bin's state */
GST_OBJECT_LOCK (vis_bin);
bin_state = GST_STATE (vis_bin);
GST_OBJECT_UNLOCK (vis_bin);
/* Unlink */
gst_pad_unlink (tee_pad, vis_sink_pad);
gst_object_unref (vis_sink_pad);
vis_sink_pad = NULL;
if (GST_IS_PAD (vqueue_pad)) {
gst_pad_unlink (vis_src_pad, vqueue_pad);
gst_object_unref (vis_src_pad);
vis_src_pad = NULL;
}
/* Remove from vis_bin */
gst_bin_remove (vis_bin, playsink->visualisation);
/* Set state to NULL */
gst_element_set_state (playsink->visualisation, GST_STATE_NULL);
/* And loose our ref */
gst_object_unref (playsink->visualisation);
if (pending_visualisation) {
/* Ref this new visualisation element before adding to the bin */
gst_object_ref (pending_visualisation);
/* Add the new one */
gst_bin_add (vis_bin, pending_visualisation);
/* Synchronizing state */
gst_element_set_state (pending_visualisation, bin_state);
vis_sink_pad = gst_element_get_pad (pending_visualisation, "sink");
vis_src_pad = gst_element_get_pad (pending_visualisation, "src");
if (!GST_IS_PAD (vis_sink_pad) || !GST_IS_PAD (vis_src_pad)) {
goto beach;
}
/* Link */
gst_pad_link (tee_pad, vis_sink_pad);
gst_pad_link (vis_src_pad, vqueue_pad);
}
/* We are done */
gst_object_unref (playsink->visualisation);
playsink->visualisation = pending_visualisation;
beach:
if (vis_sink_pad) {
gst_object_unref (vis_sink_pad);
}
if (vis_src_pad) {
gst_object_unref (vis_src_pad);
}
if (vqueue_pad) {
gst_object_unref (vqueue_pad);
}
if (vis_bin) {
gst_object_unref (vis_bin);
}
/* Unblock the pad */
gst_pad_set_blocked_async (tee_pad, FALSE, gst_play_sink_vis_unblocked,
playsink);
}
void
gst_play_sink_set_video_sink (GstPlaySink * playsink, GstElement * sink)
{
@ -463,66 +339,89 @@ gst_play_sink_set_audio_sink (GstPlaySink * playsink, GstElement * sink)
GST_OBJECT_UNLOCK (playsink);
}
void
gst_play_sink_set_vis_plugin (GstPlaySink * playsink,
GstElement * pending_visualisation)
static void
gst_play_sink_vis_unblocked (GstPad * tee_pad, gboolean blocked,
gpointer user_data)
{
/* Take ownership */
if (pending_visualisation) {
gst_object_ref (pending_visualisation);
gst_object_sink (pending_visualisation);
}
GstPlaySink *playsink;
/* Do we already have a visualisation change pending? If yes, change the
* pending vis with the new one. */
GST_OBJECT_LOCK (playsink);
if (playsink->pending_visualisation) {
gst_object_unref (playsink->pending_visualisation);
playsink->pending_visualisation = pending_visualisation;
GST_OBJECT_UNLOCK (playsink);
} else {
GST_OBJECT_UNLOCK (playsink);
/* Was there a visualisation already set ? */
if (playsink->visualisation != NULL) {
GstBin *vis_bin = NULL;
playsink = GST_PLAY_SINK (user_data);
/* nothing to do here, we need a dummy callback here to make the async call
* non-blocking. */
GST_DEBUG_OBJECT (playsink, "vis pad unblocked");
}
vis_bin =
GST_BIN_CAST (gst_object_get_parent (GST_OBJECT_CAST (playsink->
visualisation)));
static void
gst_play_sink_vis_blocked (GstPad * tee_pad, gboolean blocked,
gpointer user_data)
{
GstPlaySink *playsink;
GstPlayVisChain *chain;
/* Check if the visualisation is already in a bin */
if (GST_IS_BIN (vis_bin)) {
GstPad *vis_sink_pad = NULL, *tee_pad = NULL;
playsink = GST_PLAY_SINK (user_data);
/* Now get tee pad and block it async */
vis_sink_pad = gst_element_get_pad (playsink->visualisation, "sink");
if (!GST_IS_PAD (vis_sink_pad)) {
goto beach;
}
tee_pad = gst_pad_get_peer (vis_sink_pad);
if (!GST_IS_PAD (tee_pad)) {
goto beach;
}
GST_PLAY_SINK_LOCK (playsink);
GST_DEBUG_OBJECT (playsink, "vis pad blocked");
/* now try to change the plugin in the running vis chain */
if (!(chain = (GstPlayVisChain *) playsink->vischain))
goto done;
playsink->pending_visualisation = pending_visualisation;
/* Block with callback */
gst_pad_set_blocked_async (tee_pad, TRUE, gst_play_sink_vis_blocked,
/* unlink the old plugin and unghost the pad */
gst_pad_unlink (chain->blockpad, chain->vissinkpad);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (chain->srcpad), NULL);
/* set the old plugin to NULL and remove */
gst_element_set_state (chain->vis, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (chain->chain.bin), chain->vis);
/* add new plugin and set state to playing */
chain->vis = gst_object_ref (playsink->visualisation);
gst_bin_add (GST_BIN_CAST (chain->chain.bin), chain->vis);
gst_element_set_state (chain->vis, GST_STATE_PLAYING);
/* get pads */
chain->vissinkpad = gst_element_get_pad (chain->vis, "sink");
chain->vissrcpad = gst_element_get_pad (chain->vis, "src");
/* link pads */
gst_pad_link (chain->blockpad, chain->vissinkpad);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (chain->srcpad),
chain->vissrcpad);
done:
/* Unblock the pad */
gst_pad_set_blocked_async (tee_pad, FALSE, gst_play_sink_vis_unblocked,
playsink);
beach:
if (vis_sink_pad) {
gst_object_unref (vis_sink_pad);
}
if (tee_pad) {
gst_object_unref (tee_pad);
}
gst_object_unref (vis_bin);
} else {
playsink->visualisation = pending_visualisation;
}
} else {
playsink->visualisation = pending_visualisation;
}
}
GST_PLAY_SINK_UNLOCK (playsink);
}
void
gst_play_sink_set_vis_plugin (GstPlaySink * playsink, GstElement * vis)
{
GstPlayVisChain *chain;
GST_PLAY_SINK_LOCK (playsink);
/* first store the new vis */
if (playsink->visualisation)
gst_object_unref (playsink->visualisation);
playsink->visualisation = gst_object_ref (vis);
/* now try to change the plugin in the running vis chain, if we have no chain,
* we don't bother, any future vis chain will be created with the new vis
* plugin. */
if (!(chain = (GstPlayVisChain *) playsink->vischain))
goto done;
/* block the pad, the next time the callback is called we can change the
* visualisation. It's possible that this never happens or that the pad was
* already blocked. */
GST_DEBUG_OBJECT (playsink, "blocking vis pad");
gst_pad_set_blocked_async (chain->blockpad, TRUE, gst_play_sink_vis_blocked,
playsink);
done:
GST_PLAY_SINK_UNLOCK (playsink);
return;
}
void
@ -1120,14 +1019,14 @@ link_failed:
}
/*
* +----------------------------------------------------+
* +-------------------------------------------------------------------+
* | visbin |
* | +----------+ +------------+ +-------+ |
* | | visqueue | | audioconv | | vis | |
* | +-sink src-sink + samp src-sink src-+ |
* | | +----------+ +------------+ +-------+ | |
* | +----------+ +------------+ +----------+ +-------+ |
* | | visqueue | | audioconv | | audiores | | vis | |
* | +-sink src-sink + samp src-sink src-sink src-+ |
* | | +----------+ +------------+ +----------+ +-------+ | |
* sink-+ +-src
* +----------------------------------------------------+
* +-------------------------------------------------------------------+
*
*/
static GstPlayChain *
@ -1161,8 +1060,12 @@ gen_vis_chain (GstPlaySink * playsink)
goto no_audioresample;
gst_bin_add (bin, chain->resample);
/* this pad will be used for blocking the dataflow and switching the vis
* plugin */
chain->blockpad = gst_element_get_pad (chain->resample, "src");
if (playsink->visualisation) {
chain->vis = playsink->visualisation;
chain->vis = gst_object_ref (playsink->visualisation);
} else {
chain->vis = gst_element_factory_make ("goom", "vis");
if (!chain->vis)
@ -1176,14 +1079,15 @@ gen_vis_chain (GstPlaySink * playsink)
if (!res)
goto link_failed;
chain->vissinkpad = gst_element_get_pad (chain->vis, "sink");
chain->vissrcpad = gst_element_get_pad (chain->vis, "src");
pad = gst_element_get_pad (chain->queue, "sink");
chain->chain.sinkpad = gst_ghost_pad_new ("sink", pad);
gst_object_unref (pad);
gst_element_add_pad (chain->chain.bin, chain->chain.sinkpad);
pad = gst_element_get_pad (chain->vis, "src");
chain->srcpad = gst_ghost_pad_new ("src", pad);
gst_object_unref (pad);
chain->srcpad = gst_ghost_pad_new ("src", chain->vissrcpad);
gst_element_add_pad (chain->chain.bin, chain->srcpad);
return (GstPlayChain *) chain;