videoconvert: use base class new vmethods

Use the base class filter_meta to proxy all metadata upstream.
Use the base class transform_meta to let it copy all non-colorspace dependent
metadata.

diff --git a/gst/videoconvert/gstvideoconvert.c b/gst/videoconvert/gstvideoconvert.c
index a01f057..efc1c7d 100644 (file)
--- a/gst/videoconvert/gstvideoconvert.c
+++ b/gst/videoconvert/gstvideoconvert.c
@@ -158,6 +158,14 @@ gst_video_convert_fixate_caps (GstBaseTransform * trans,
   return result;
 }
 
+static gboolean
+gst_video_convert_filter_meta (GstBaseTransform * trans, GstQuery * query,
+    GType api)
+{
+  /* propose all metadata upstream */
+  return TRUE;
+}
+
 /* The caps can be transformed into any other caps with format info removed.
  * However, we should prefer passthrough, so if passthrough is possible,
  * put it first in the list. */
@@ -186,6 +194,24 @@ gst_video_convert_transform_caps (GstBaseTransform * btrans,
 }
 
 static gboolean
+gst_video_convert_transform_meta (GstBaseTransform * trans, GstBuffer * outbuf,
+    GstMeta * meta, GstBuffer * inbuf)
+{
+  const GstMetaInfo *info = meta->info;
+  gboolean ret;
+
+  if (gst_meta_api_type_has_tag (info->api, _colorspace_quark)) {
+    /* don't copy colorspace specific metadata, FIXME, we need a MetaTransform
+     * for the colorspace metadata. */
+    ret = FALSE;
+  } else {
+    /* copy other metadata */
+    ret = TRUE;
+  }
+  return ret;
+}
+
+static gboolean
 gst_video_convert_set_info (GstVideoFilter * filter,
     GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
     GstVideoInfo * out_info)
@@ -348,6 +374,10 @@ gst_video_convert_class_init (GstVideoConvertClass * klass)
       GST_DEBUG_FUNCPTR (gst_video_convert_transform_caps);
   gstbasetransform_class->fixate_caps =
       GST_DEBUG_FUNCPTR (gst_video_convert_fixate_caps);
+  gstbasetransform_class->filter_meta =
+      GST_DEBUG_FUNCPTR (gst_video_convert_filter_meta);
+  gstbasetransform_class->transform_meta =
+      GST_DEBUG_FUNCPTR (gst_video_convert_transform_meta);
 
   gstbasetransform_class->passthrough_on_same_caps = TRUE;