/**
* SECTION:element-capssetter
*
- * <refsect2>
- * <para>
- * Sets or merges caps on a stream's buffers.
- * That is, a buffer's caps are updated using (fields of)
- * <link linkend="GstCapsSetter--caps">caps</link>. Note that this may
- * contain multiple structures (though not likely recommended), but each
- * of these must be fixed (or will otherwise be rejected).
- * </para>
- * <para>
- * If <link linkend="GstCapsSetter--join">join</link>
- * is TRUE, then the incoming caps' mime-type is compared to the mime-type(s)
- * of provided caps and only matching structure(s) are considered for updating.
- * </para>
- * <para>
- * If <link linkend="GstCapsSetter--replace">replace</link>
- * is TRUE, then any caps update is preceded by clearing existing fields,
- * making provided fields (as a whole) replace incoming ones.
- * Otherwise, no clearing is performed, in which case provided fields are
- * added/merged onto incoming caps
- * </para>
- * <para>
+ * Sets or merges caps on a stream's buffers. That is, a buffer's caps are
+ * updated using (fields of) #GstCapsSetter:caps. Note that this may contain
+ * multiple structures (though not likely recommended), but each of these must
+ * be fixed (or will otherwise be rejected).
+ *
+ * If #GstCapsSetter:join is %TRUE, then the incoming caps' mime-type is
+ * compared to the mime-type(s) of provided caps and only matching structure(s)
+ * are considered for updating.
+ *
+ * If #GstCapsSetter:replace is %TRUE, then any caps update is preceded by
+ * clearing existing fields, making provided fields (as a whole) replace
+ * incoming ones. Otherwise, no clearing is performed, in which case provided
+ * fields are added/merged onto incoming caps
+ *
* Although this element might mainly serve as debug helper,
* it can also practically be used to correct a faulty pixel-aspect-ratio,
* or to modify a yuv fourcc value to effectively swap chroma components or such
* alike.
- * </para>
- * </refsect2>
- *
*/
"Drop fields of incoming caps", DEFAULT_REPLACE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
- gst_element_class_set_details_simple (element_class, "CapsSetter",
+ gst_element_class_set_static_metadata (element_class, "CapsSetter",
"Generic",
"Set/merge caps on stream",
"Mark Nauwelaerts <mnauw@users.sourceforge.net>");
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_caps_setter_sink_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_caps_setter_src_template));
+ gst_element_class_add_static_pad_template (element_class,
+ &gst_caps_setter_sink_template);
+ gst_element_class_add_static_pad_template (element_class,
+ &gst_caps_setter_src_template);
trans_class->transform_size =
GST_DEBUG_FUNCPTR (gst_caps_setter_transform_size);
GstPadDirection direction, GstCaps * caps, GstCaps * cfilter)
{
GstCapsSetter *filter = GST_CAPS_SETTER (trans);
- GstCaps *ret, *filter_caps;
+ GstCaps *ret = NULL, *filter_caps = NULL;
GstStructure *structure, *merge;
const gchar *name;
- gint i, j;
-
- GST_DEBUG_OBJECT (trans, "receiving caps: %" GST_PTR_FORMAT, caps);
+ gint i, j, k;
+
+ GST_DEBUG_OBJECT (trans,
+ "receiving caps: %" GST_PTR_FORMAT ", with filter: %" GST_PTR_FORMAT,
+ caps, cfilter);
+
+ /* pass filter caps upstream, or any if no filter */
+ if (direction != GST_PAD_SINK) {
+ if (!cfilter || gst_caps_is_empty (cfilter)) {
+ return gst_caps_ref (GST_CAPS_ANY);
+ } else {
+ return gst_caps_ref (cfilter);
+ }
+ }
ret = gst_caps_copy (caps);
- /* this function is always called with a simple caps */
- if (!GST_CAPS_IS_SIMPLE (ret) || direction != GST_PAD_SINK)
- return ret;
-
- structure = gst_caps_get_structure (ret, 0);
- name = gst_structure_get_name (structure);
-
GST_OBJECT_LOCK (filter);
filter_caps = gst_caps_ref (filter->caps);
GST_OBJECT_UNLOCK (filter);
- for (i = 0; i < gst_caps_get_size (filter_caps); ++i) {
- merge = gst_caps_get_structure (filter_caps, i);
- if (gst_structure_has_name (merge, name) || !filter->join) {
+ for (k = 0; k < gst_caps_get_size (ret); k++) {
+ structure = gst_caps_get_structure (ret, k);
+ name = gst_structure_get_name (structure);
- if (!filter->join)
- gst_structure_set_name (structure, gst_structure_get_name (merge));
+ for (i = 0; i < gst_caps_get_size (filter_caps); ++i) {
+ merge = gst_caps_get_structure (filter_caps, i);
+ if (gst_structure_has_name (merge, name) || !filter->join) {
- if (filter->replace)
- gst_structure_remove_all_fields (structure);
+ if (!filter->join)
+ gst_structure_set_name (structure, gst_structure_get_name (merge));
- for (j = 0; j < gst_structure_n_fields (merge); ++j) {
- const gchar *fname;
+ if (filter->replace)
+ gst_structure_remove_all_fields (structure);
- fname = gst_structure_nth_field_name (merge, j);
- gst_structure_set_value (structure, fname,
- gst_structure_get_value (merge, fname));
+ for (j = 0; j < gst_structure_n_fields (merge); ++j) {
+ const gchar *fname;
+
+ fname = gst_structure_nth_field_name (merge, j);
+ gst_structure_set_value (structure, fname,
+ gst_structure_get_value (merge, fname));
+ }
}
}
}
}
/* try to activate these new caps next time around */
- gst_base_transform_reconfigure (GST_BASE_TRANSFORM (filter));
+ gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (filter));
break;
}
case PROP_JOIN:
projects / platform / upstream / gst-plugins-good.git / blobdiff