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videoaggregator: Create new caps from the video-info

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In case the original caps were missing some optional fields like
interlace-mode. We assume default values for those everywhere,
but they can still cause negotiation to fail if a downstream element
expects the field to be there and at a specific value.
This commit is contained in:
Sebastian Dröge 2015-03-06 14:36:26 +01:00
parent a8ae57480c
commit 78215be0df
1 changed files with 12 additions and 2 deletions
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14
gst-libs/gst/video/gstvideoaggregator.c
View file

@ -599,14 +599,24 @@ gst_videoaggregator_src_setcaps (GstVideoAggregator * vagg, GstCaps * caps)
if (vagg->priv->current_caps == NULL ||
gst_caps_is_equal (caps, vagg->priv->current_caps) == FALSE) {
GstClockTime latency;
GstCaps *full_caps;
gst_caps_replace (&vagg->priv->current_caps, caps);
/* Create new caps from the video-info, in case the original caps
* were missing some optional fields like interlace-mode. We assume
* default values for those everywhere, but they can still cause
* negotiation to fail if a downstream element expects the field to be
* there and at a specific value.
*/
full_caps = gst_video_info_to_caps (&info);
gst_caps_replace (&vagg->priv->current_caps, full_caps);
GST_VIDEO_AGGREGATOR_UNLOCK (vagg);
gst_aggregator_set_src_caps (agg, caps);
gst_aggregator_set_src_caps (agg, full_caps);
latency = gst_util_uint64_scale (GST_SECOND,
GST_VIDEO_INFO_FPS_D (&info), GST_VIDEO_INFO_FPS_N (&info));
gst_aggregator_set_latency (agg, latency, latency);
gst_caps_unref (full_caps);
GST_VIDEO_AGGREGATOR_LOCK (vagg);
}