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vp9parse: Always default to super-frame

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Sort the list of structure before truncating so that we don't prefer
"frame"" alignment over "super-frame" in some cases.

Fixes vp90-2-22-svc_1280x720_3.ivf conformance test when using libvpx based
decoder.

Fixes #4371

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8944>
This commit is contained in:
Nicolas Dufresne 2025-05-07 13:48:04 -04:00
parent a8f5618d1a
commit d5d47d211e
1 changed files with 12 additions and 1 deletions
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13
subprojects/gst-plugins-bad/gst/videoparsers/gstvp9parse.c
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@ -294,7 +294,6 @@ gst_vp9_parse_negotiate (GstVp9Parse * self, GstVp9ParseAlignment in_align,
/* concentrate on leading structure, since decodebin parser
* capsfilter always includes parser template caps */
if (caps) {
caps = gst_caps_make_writable (caps);
while (gst_caps_get_size (caps) > 0) {
GstStructure *s = gst_caps_get_structure (caps, 0);
@ -312,6 +311,18 @@ gst_vp9_parse_negotiate (GstVp9Parse * self, GstVp9ParseAlignment in_align,
caps = gst_pad_get_allowed_caps (GST_BASE_PARSE_SRC_PAD (self));
}
/* Sort super-frame alignment first before truncating */
GstCaps *ordered_caps = gst_caps_new_full (gst_structure_new ("video/x-vp9",
"alignment", G_TYPE_STRING, "super-frame", NULL),
gst_structure_new ("video/x-vp9",
"alignment", G_TYPE_STRING, "frame", NULL),
NULL);
GstCaps *tmp = caps;
caps =
gst_caps_intersect_full (ordered_caps, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ordered_caps);
gst_caps_unref (tmp);
caps = gst_caps_truncate (caps);
GST_DEBUG_OBJECT (self, "negotiating with caps: %" GST_PTR_FORMAT, caps);
}