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discoverer: Don't wait for subtitle streams to preroll

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Subtitle streams being parse can cause the pipeline to wait indefinitely
to PREROLL. This makes subtitle streams got to PAUSED even if no data is
available. This should not be a cause for concern as we don't expect to
get much data for subtitle streams other than language tags from the
container.

https://bugzilla.gnome.org/show_bug.cgi?id=632291
This commit is contained in:
Arun Raghavan 2010-11-03 14:37:07 +05:30
parent ba2e500bd9
commit 9ffb8859d7
1 changed files with 19 additions and 0 deletions
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19
gst-libs/gst/pbutils/gstdiscoverer.c
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@ -443,6 +443,15 @@ uridecodebin_pad_added_cb (GstElement * uridecodebin, GstPad * pad,
{
PrivateStream *ps;
GstPad *sinkpad = NULL;
GstCaps *caps;
static GstCaps *subs_caps = NULL;
if (!subs_caps) {
subs_caps = gst_caps_from_string ("text/plain; text/x-pango-markup; "
"subpicture/x-pgs; subpicture/x-dvb; application/x-subtitle-unknown; "
"application/x-ssa; application/x-ass; subtitle/x-kate; "
"video/x-dvd-subpicture; ");
}
GST_DEBUG_OBJECT (dc, "pad %s:%s", GST_DEBUG_PAD_NAME (pad));
@ -459,6 +468,16 @@ uridecodebin_pad_added_cb (GstElement * uridecodebin, GstPad * pad,
g_object_set (ps->sink, "silent", TRUE, NULL);
g_object_set (ps->queue, "max-size-buffers", 1, "silent", TRUE, NULL);
caps = gst_pad_get_caps_reffed (pad);
if (gst_caps_can_intersect (caps, subs_caps)) {
/* Subtitle streams are sparse and don't provide any information - don't
* wait for data to preroll */
g_object_set (ps->sink, "async", FALSE, NULL);
}
gst_caps_unref (caps);
gst_bin_add_many (dc->priv->pipeline, ps->queue, ps->sink, NULL);
if (!gst_element_link_pads_full (ps->queue, "src", ps->sink, "sink",