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av1parse: Use the intersected caps to decide the alignment.

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When we negotiate with downstream, We should use the intersected
caps of input and output to decide the alignment and stream format.
The current code just uses the input caps which may lack the stream
format.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1837>
This commit is contained in:
He Junyan 2022-03-03 22:38:56 +08:00 committed by GStreamer Marge Bot
parent ccd1ed9cbc
commit 81bae87079
1 changed files with 7 additions and 4 deletions
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11
subprojects/gst-plugins-bad/gst/videoparsers/gstav1parse.c
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@ -761,9 +761,11 @@ gst_av1_parse_negotiate (GstAV1Parse * self, GstCaps * in_caps)
/* Both upsteam and downstream support, best */
if (in_caps && caps) {
if (gst_caps_can_intersect (in_caps, caps)) {
GST_DEBUG_OBJECT (self, "downstream accepts upstream caps");
align = gst_av1_parse_alignment_from_caps (in_caps);
gst_clear_caps (&caps);
GstCaps *common_caps = NULL;
common_caps = gst_caps_intersect (in_caps, caps);
align = gst_av1_parse_alignment_from_caps (common_caps);
gst_clear_caps (&common_caps);
}
}
if (align != GST_AV1_PARSE_ALIGN_NONE)
@ -867,7 +869,8 @@ gst_av1_parse_set_sink_caps (GstBaseParse * parse, GstCaps * caps)
if (align == GST_AV1_PARSE_ALIGN_NONE) {
align = GST_AV1_PARSE_ALIGN_BYTE;
gst_caps_set_simple (in_caps, "alignment", G_TYPE_STRING,
gst_av1_parse_alignment_to_string (align), NULL);
gst_av1_parse_alignment_to_string (align),
"stream-format", G_TYPE_STRING, "obu-stream", NULL);
}
/* negotiate with downstream, set output align */