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discoverer: filter 'parsed' field when checking for same caps

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We're checking the caps to see if we got more caps details after a parser got
plugged. This will also have a flipped 'parsed' field. If the field was already
present before the parse the match will fail. Add a function that will do the
check while excluding this field.
This commit is contained in:
Stefan Sauer 2013-10-07 22:52:27 +02:00
parent 82b6fff272
commit b5bcd73015
1 changed files with 19 additions and 1 deletions
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20
gst-libs/gst/pbutils/gstdiscoverer.c
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@ -997,6 +997,24 @@ find_stream_for_node (GstDiscoverer * dc, const GstStructure * topology)
return st;
}
/* this can fail due to parsed=TRUE/FALSE differences, thus we filter the
* parent */
static gboolean
child_is_same_stream (const GstCaps * _parent, const GstCaps * child)
{
GstCaps *parent = gst_caps_copy (_parent);
guint i, size = gst_caps_get_size (parent);
gboolean res;
for (i = 0; i < size; i++) {
gst_structure_remove_field (gst_caps_get_structure (parent, i), "parsed");
}
res = gst_caps_can_intersect (parent, child);
gst_caps_unref (parent);
return res;
}
static gboolean
child_is_raw_stream (const GstCaps * parent, const GstCaps * child)
{
@ -1062,7 +1080,7 @@ parse_stream_topology (GstDiscoverer * dc, const GstStructure * topology,
parent = res;
if (gst_structure_id_get (st, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL)) {
if (gst_caps_can_intersect (parent->caps, caps)) {
if (child_is_same_stream (parent->caps, caps)) {
/* We sometimes get an extra sub-stream from the parser. If this is
* the case, we just replace the parent caps with this stream's caps
* since they might contain more information */