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vaapipostproc: fix check for compatible src pad capsfilters.

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When an explicit output video format is selected, from an src pad
capsfilter, make sure that the downstream element actually supports
that format. In particular, fix crash with the following pipelines:
... ! vaapipostproc ! video/x-raw,format=XXX ! xvimagesink ; where
XXX is a format not supported by xvimagesink.

While doing so, also reduce the set of src pad filter caps to the
actual set of allowed src pad caps.
This commit is contained in:
Gwenole Beauchesne 2014-11-24 14:25:33 +01:00
parent 9c888b8b8e
commit 0525f56ac5
1 changed files with 4 additions and 5 deletions
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9
gst/vaapi/gstvaapipostproc.c
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@ -1127,18 +1127,17 @@ gst_vaapipostproc_transform_caps_impl (GstBaseTransform * trans,
if (postproc->format != DEFAULT_FORMAT)
out_format = postproc->format;
else {
GstCaps *peer_caps, *filter_caps;
GstCaps *peer_caps;
GstVideoInfo peer_vi;
filter_caps =
gst_caps_from_string (GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL));
peer_caps =
gst_pad_peer_query_caps (GST_BASE_TRANSFORM_SRC_PAD (trans),
filter_caps);
postproc->allowed_srcpad_caps);
if (gst_caps_is_empty (peer_caps))
return peer_caps;
if (!gst_caps_is_fixed (peer_caps))
peer_caps = gst_caps_fixate (peer_caps);
gst_video_info_from_caps (&peer_vi, peer_caps);
out_format = GST_VIDEO_INFO_FORMAT (&peer_vi);
gst_caps_unref (filter_caps);
if (peer_caps)
gst_caps_unref (peer_caps);
}