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gst/playback/gstplaysink.c: Recursively search the sink element for a last-frame property so that we can also find th...

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Original commit message from CVS:
* gst/playback/gstplaysink.c: (find_property),
(gst_play_sink_find_property), (gen_video_chain),
(gst_play_sink_reconfigure), (gst_play_sink_get_last_frame):
Recursively search the sink element for a last-frame property so that we
can also find the property in autovideosink and friends that don't
always proxy the internal sink properties.
This commit is contained in:
Wim Taymans 2008-02-20 11:52:28 +00:00
parent 2c538ea740
commit dd1282f45a
2 changed files with 61 additions and 6 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2008-02-20 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/playback/gstplaysink.c: (find_property),
(gst_play_sink_find_property), (gen_video_chain),
(gst_play_sink_reconfigure), (gst_play_sink_get_last_frame):
Recursively search the sink element for a last-frame property so that we
can also find the property in autovideosink and friends that don't
always proxy the internal sink properties.
2008-02-19 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/gst/audio/multichannel.c:

58
gst/playback/gstplaysink.c
View file

@ -715,6 +715,44 @@ activate_chain (GstPlayChain * chain, gboolean activate)
return TRUE;
}
static gint
find_property (GstElement * element, const gchar * name)
{
gint res;
if (g_object_class_find_property (G_OBJECT_GET_CLASS (element), name)) {
res = 0;
GST_DEBUG_OBJECT (element, "found %s property", name);
} else {
GST_DEBUG_OBJECT (element, "did not find %s property", name);
res = 1;
gst_object_unref (element);
}
return res;
}
/* find an object in the hierarchy with a property named @name */
static GstElement *
gst_play_sink_find_property (GstPlaySink * playsink, GstElement * obj,
const gchar * name)
{
GstElement *result = NULL;
GstIterator *it;
if (GST_IS_BIN (obj)) {
it = gst_bin_iterate_recurse (GST_BIN_CAST (obj));
result = gst_iterator_find_custom (it,
(GCompareFunc) find_property, (gpointer) name);
gst_iterator_free (it);
} else {
if (g_object_class_find_property (G_OBJECT_GET_CLASS (obj), name)) {
result = obj;
gst_object_ref (obj);
}
}
return result;
}
/* make the element (bin) that contains the elements needed to perform
* video display.
*
@ -750,8 +788,11 @@ gen_video_chain (GstPlaySink * playsink, gboolean raw, gboolean async)
}
/* if we can disable async behaviour of the sink, we can avoid adding a
* queue for the audio chain. */
* queue for the audio chain. We can't use the deep property here because the
* sink might change it's internal sink element later. */
if (g_object_class_find_property (G_OBJECT_GET_CLASS (chain->sink), "async")) {
GST_DEBUG_OBJECT (playsink, "setting async property to %d on video sink",
async);
g_object_set (chain->sink, "async", async, NULL);
chain->async = async;
} else
@ -1285,7 +1326,7 @@ gst_play_sink_reconfigure (GstPlaySink * playsink)
* decouple the audio from the video part. We only have to do this when
* the video part is async=true */
queue = ((GstPlayVideoChain *) playsink->videochain)->async;
GST_DEBUG_OBJECT (playsink, "need audio queue for vis");
GST_DEBUG_OBJECT (playsink, "need audio queue for vis: %d", queue);
} else {
/* no vis, we can avoid a queue */
GST_DEBUG_OBJECT (playsink, "don't need audio queue");
@ -1371,12 +1412,17 @@ gst_play_sink_get_last_frame (GstPlaySink * playsink)
GST_DEBUG_OBJECT (playsink, "found video chain");
/* see if the chain is active */
if (chain->chain.activated && chain->sink) {
GstElement *elem;
GST_DEBUG_OBJECT (playsink, "video chain active and has a sink");
/* get the frame property if we can */
if (g_object_class_find_property (G_OBJECT_GET_CLASS (chain->sink),
"last-buffer")) {
/* find and get the last-buffer property now */
if ((elem =
gst_play_sink_find_property (playsink, chain->sink,
"last-buffer"))) {
GST_DEBUG_OBJECT (playsink, "getting last-buffer property");
g_object_get (chain->sink, "last-buffer", &result, NULL);
g_object_get (elem, "last-buffer", &result, NULL);
gst_object_unref (elem);
}
}
}