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openni2src: Fix deadlock when _get_caps() is called before READY

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The object lock was not being dropped in the empty case. Restructured
the code a bit to make this sort of error less likely.

https://bugzilla.gnome.org/show_bug.cgi?id=732535
This commit is contained in:
Arun Raghavan 2014-07-01 11:53:46 +05:30
parent 65bddd1e0c
commit b6e07e77c2
1 changed files with 10 additions and 8 deletions
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18
ext/openni2/gstopenni2src.cpp
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@ -320,13 +320,9 @@ gst_openni2_src_get_caps (GstBaseSrc * src, GstCaps * filter)
ni2src = GST_OPENNI2_SRC (src);
GST_OBJECT_LOCK (ni2src);
if (ni2src->gst_caps) {
GST_OBJECT_UNLOCK (ni2src);
return (filter)
? gst_caps_intersect_full (filter, ni2src->gst_caps,
GST_CAPS_INTERSECT_FIRST)
: gst_caps_ref (ni2src->gst_caps);
}
if (ni2src->gst_caps)
goto out;
// If we are here, we need to compose the caps and return them.
if (ni2src->depth.isValid () && ni2src->color.isValid () &&
@ -339,7 +335,7 @@ gst_openni2_src_get_caps (GstBaseSrc * src, GstCaps * filter)
&& ni2src->colorpixfmt == openni::PIXEL_FORMAT_RGB888) {
format = GST_VIDEO_FORMAT_RGB;
} else {
return gst_caps_new_empty ();
goto out;
}
gst_video_info_init (&info);
@ -350,7 +346,13 @@ gst_openni2_src_get_caps (GstBaseSrc * src, GstCaps * filter)
GST_INFO_OBJECT (ni2src, "probed caps: %" GST_PTR_FORMAT, caps);
ni2src->gst_caps = caps;
out:
GST_OBJECT_UNLOCK (ni2src);
if (!ni2src->gst_caps)
return gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (ni2src));
return (filter)
? gst_caps_intersect_full (filter, ni2src->gst_caps,
GST_CAPS_INTERSECT_FIRST)