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glvideomixer: par may not exist in the caps

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Fixes a critical in the gst-validate tests:

gst_structure_fixate_field_nearest_fraction: assertion 'gst_structure_has_field
(structure, field_name)
This commit is contained in:
Matthew Waters 2016-01-29 14:03:26 +11:00
parent 406fe90331
commit 5d304e6a14
1 changed files with 4 additions and 6 deletions
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8
ext/gl/gstglvideomixer.c
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@ -993,12 +993,11 @@ _fixate_caps (GstVideoAggregator * vagg, GstCaps * caps)
/* we need this to calculate how large to make the output frame */
s = gst_caps_get_structure (ret, 0);
if (gst_structure_has_field (s, "pixel-aspect-ratio")) {
if (!gst_structure_has_field (s, "pixel-aspect-ratio")) {
gst_structure_set (s, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, NULL);
}
gst_structure_fixate_field_nearest_fraction (s, "pixel-aspect-ratio", 1, 1);
gst_structure_get_fraction (s, "pixel-aspect-ratio", &par_n, &par_d);
} else {
par_n = par_d = 1;
}
GST_OBJECT_LOCK (vagg);
for (l = GST_ELEMENT (vagg)->sinkpads; l; l = l->next) {
@ -1048,7 +1047,6 @@ _fixate_caps (GstVideoAggregator * vagg, GstCaps * caps)
gst_structure_fixate_field_nearest_int (s, "height", best_height);
gst_structure_fixate_field_nearest_fraction (s, "framerate", best_fps_n,
best_fps_d);
gst_structure_fixate_field_nearest_fraction (s, "pixel-aspect-ratio", 1, 1);
ret = gst_caps_fixate (ret);
return ret;