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videoconvert: improve fixation

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Use the fixed upstream caps to fixate the output caps by taking the
intersection.
This commit is contained in:
Wim Taymans 2012-02-22 15:31:12 +01:00
parent 18e45a8a5f
commit 7d58b0aa0b
1 changed files with 9 additions and 22 deletions
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31
gst/videoconvert/gstvideoconvert.c
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@ -136,35 +136,22 @@ static GstCaps *
gst_video_convert_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstStructure *ss, *ds;
const gchar *val;
othercaps = gst_caps_make_writable (othercaps);
GstCaps *result;
GST_DEBUG_OBJECT (trans, "fixating caps %" GST_PTR_FORMAT, othercaps);
ss = gst_caps_get_structure (caps, 0);
ds = gst_caps_get_structure (othercaps, 0);
/* first try to preserve chroma-site and colorimetry */
if ((val = gst_structure_get_string (ss, "chroma-site"))) {
if (gst_structure_has_field (ds, "chroma-site"))
gst_structure_fixate_field_string (ds, "chroma-site", val);
else
gst_structure_set (ds, "chroma-site", G_TYPE_STRING, val, NULL);
}
if ((val = gst_structure_get_string (ss, "colorimetry"))) {
if (gst_structure_has_field (ds, "colorimetry"))
gst_structure_fixate_field_string (ds, "colorimetry", val);
else
gst_structure_set (ds, "colorimetry", G_TYPE_STRING, val, NULL);
result = gst_caps_intersect (othercaps, caps);
if (gst_caps_is_empty (result)) {
result = othercaps;
} else {
gst_caps_unref (othercaps);
}
/* fixate remaining fields */
gst_caps_fixate (othercaps);
result = gst_caps_make_writable (result);
gst_caps_fixate (result);
return othercaps;
return result;
}
/* The caps can be transformed into any other caps with format info removed.