/* copies the given caps */
static GstCaps *
gst_yuv_to_rgb_caps_remove_format_info (GstCaps * caps)
{
GstStructure *st;
gint i, n;
GstCaps *res;
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure (res, st))
continue;
st = gst_structure_copy (st);
gst_structure_remove_fields (st, "format",
"colorimetry", "chroma-site", NULL);
gst_caps_append_structure (res, st);
}
return res;
}
static GstCaps* gst_imx_blitter_video_transform_transform_caps(GstBaseTransform *transform, G_GNUC_UNUSED GstPadDirection direction, GstCaps *caps, GstCaps *filter)
{
GstCaps *tmpcaps1, *tmpcaps2, *result;
GstStructure *structure;
gint i, n;
tmpcaps1 = gst_caps_new_empty();
n = gst_caps_get_size(caps);
for (i = 0; i < n; i++)
{
structure = gst_caps_get_structure(caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if ((i > 0) && gst_caps_is_subset_structure(tmpcaps1, structure))
continue;
/* make copy */
structure = gst_structure_copy(structure);
gst_structure_set(
structure,
"width", GST_TYPE_INT_RANGE, 64, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 64, G_MAXINT,
NULL
);
/* colorimetry is not supported by the videotransform element */
gst_structure_remove_fields(structure, "format", "colorimetry", "chroma-site", NULL);
/* if pixel aspect ratio, make a range of it */
if (gst_structure_has_field(structure, "pixel-aspect-ratio"))
{
gst_structure_set(
structure,
"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1,
NULL
);
}
gst_caps_append_structure(tmpcaps1, structure);
}
/* filter the resulting caps if necessary */
if (filter != NULL)
{
tmpcaps2 = gst_caps_intersect_full(filter, tmpcaps1, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref(tmpcaps1);
tmpcaps1 = tmpcaps2;
}
result = tmpcaps1;
GST_DEBUG_OBJECT(transform, "transformed %" GST_PTR_FORMAT " into %" GST_PTR_FORMAT, (gpointer)caps, (gpointer)result);
return result;
}