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videodecoder: Fix setting default pixel-aspect-ratio

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It's needed to check if pixel-aspect-ratio exists before fixating.
It does not exist if input caps is not set yet and allowed caps
does not contain pixel-aspect-ratio (e.g. when using GST_VIDEO_CAPS_MAKE)

https://bugzilla.gnome.org/show_bug.cgi?id=751932
This commit is contained in:
Stian Selnes 2015-07-01 17:09:35 +02:00 committed by Sebastian Dröge
parent 002bdbf8a6
commit 008a228865
1 changed files with 7 additions and 2 deletions
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7
gst-libs/gst/video/gstvideodecoder.c
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@ -1097,9 +1097,14 @@ gst_video_decoder_negotiate_default_caps (GstVideoDecoder * decoder)
/* Random 1280x720@30 for fixation */
gst_structure_fixate_field_nearest_int (structure, "width", 1280);
gst_structure_fixate_field_nearest_int (structure, "height", 720);
gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
if (gst_structure_has_field (structure, "pixel-aspect-ratio")) {
gst_structure_fixate_field_nearest_fraction (structure,
"pixel-aspect-ratio", 1, 1);
gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
} else {
gst_structure_set (structure, "pixel-aspect-ratio", GST_TYPE_FRACTION,
1, 1, NULL);
}
}
caps = gst_caps_fixate (caps);
structure = gst_caps_get_structure (caps, 0);