gst_csp_caps_remove_format_info (GstCaps * caps)
{
GstStructure *yuvst, *rgbst, *grayst;
+ gint i, n;
+ GstCaps *res;
- /* We know there's only one structure since we're given simple caps */
- caps = gst_caps_copy (caps);
+ res = gst_caps_new_empty ();
- yuvst = gst_caps_get_structure (caps, 0);
+ n = gst_caps_get_size (caps);
+ for (i = 0; i < n; i++) {
+ yuvst = gst_caps_get_structure (caps, i);
- gst_structure_set_name (yuvst, "video/x-raw-yuv");
- gst_structure_remove_fields (yuvst, "format", "endianness", "depth",
- "bpp", "red_mask", "green_mask", "blue_mask", "alpha_mask",
- "palette_data", "color-matrix", NULL);
+ /* If this is already expressed by the existing caps
+ * skip this structure */
+ if (i > 0 && gst_caps_is_subset_structure (res, yuvst))
+ continue;
- rgbst = gst_structure_copy (yuvst);
- gst_structure_set_name (rgbst, "video/x-raw-rgb");
- gst_structure_remove_fields (rgbst, "color-matrix", "chroma-site", NULL);
+ yuvst = gst_structure_copy (yuvst);
+ gst_structure_set_name (yuvst, "video/x-raw-yuv");
+ gst_structure_remove_fields (yuvst, "format", "endianness", "depth",
+ "bpp", "red_mask", "green_mask", "blue_mask", "alpha_mask",
+ "palette_data", NULL);
- grayst = gst_structure_copy (rgbst);
- gst_structure_set_name (grayst, "video/x-raw-gray");
+ rgbst = gst_structure_copy (yuvst);
+ gst_structure_set_name (rgbst, "video/x-raw-rgb");
+ gst_structure_remove_fields (rgbst, "color-matrix", "chroma-site", NULL);
- gst_caps_append_structure (caps, rgbst);
- gst_caps_append_structure (caps, grayst);
+ grayst = gst_structure_copy (rgbst);
+ gst_structure_set_name (grayst, "video/x-raw-gray");
- return caps;
-}
-
-
-static gboolean
-gst_csp_structure_is_alpha (GstStructure * s)
-{
- GQuark name;
-
- name = gst_structure_get_name_id (s);
-
- if (name == _QRAWRGB) {
- return gst_structure_id_has_field (s, _QALPHAMASK);
- } else if (name == _QRAWYUV) {
- guint32 fourcc;
-
- if (!gst_structure_get_fourcc (s, "format", &fourcc))
- return FALSE;
-
- return (fourcc == GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'));
+ gst_caps_append_structure (res, yuvst);
+ gst_caps_append_structure (res, rgbst);
+ gst_caps_append_structure (res, grayst);
}
- return FALSE;
+ return res;
}
/* The caps can be transformed into any other caps with format info removed.
GstCaps *template;
GstCaps *tmp, *tmp2;
GstCaps *result;
- GstStructure *s;
- GstCaps *alpha, *non_alpha;
template = gst_static_pad_template_get_caps (&gst_csp_src_template);
result = gst_caps_copy (caps);
/* Get all possible caps that we can transform to */
tmp = gst_csp_caps_remove_format_info (caps);
- tmp2 = gst_caps_intersect (tmp, template);
- gst_caps_unref (tmp);
- tmp = tmp2;
-
- /* Now move alpha formats to the beginning if caps is an alpha format
- * or at the end if caps is no alpha format */
- alpha = gst_caps_new_empty ();
- non_alpha = gst_caps_new_empty ();
-
- while ((s = gst_caps_steal_structure (tmp, 0))) {
- if (gst_csp_structure_is_alpha (s))
- gst_caps_append_structure (alpha, s);
- else
- gst_caps_append_structure (non_alpha, s);
- }
- s = gst_caps_get_structure (caps, 0);
- gst_caps_unref (tmp);
-
- if (gst_csp_structure_is_alpha (s)) {
- gst_caps_append (alpha, non_alpha);
- tmp = alpha;
- } else {
- gst_caps_append (non_alpha, alpha);
- tmp = non_alpha;
+ if (filter) {
+ tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
+ gst_caps_unref (tmp);
+ tmp = tmp2;
}
- gst_caps_append (result, tmp);
+ result = tmp;
GST_DEBUG_OBJECT (btrans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
g_param_spec_enum ("dither", "Dither", "Apply dithering while converting",
dither_method_get_type (), DITHER_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
}
static void