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videofilter: implement transform_meta virtual method.

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If tags of the meta only contain "video", let it be copied.
This commit is contained in:
Mathieu Duponchelle 2013-08-21 23:54:49 +02:00 committed by Sebastian Dröge
parent d1cb9c994b
commit 1664468eaa
1 changed files with 20 additions and 0 deletions
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20
gst-libs/gst/video/gstvideofilter.c
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@ -341,6 +341,24 @@ invalid_buffer:
}
}
static gboolean
gst_video_filter_transform_meta (GstBaseTransform * trans, GstBuffer * inbuf,
GstMeta * meta, GstBuffer * outbuf)
{
const GstMetaInfo *info = meta->info;
const gchar *const *tags;
tags = gst_meta_api_type_get_tags (info->api);
if (tags && g_strv_length ((gchar **) tags) == 1
&& gst_meta_api_type_has_tag (info->api,
g_quark_from_string (GST_META_TAG_VIDEO_STR)))
return TRUE;
return GST_BASE_TRANSFORM_CLASS (parent_class)->transform_meta (trans, inbuf,
meta, outbuf);
}
static void
gst_video_filter_class_init (GstVideoFilterClass * g_class)
{
@ -361,6 +379,8 @@ gst_video_filter_class_init (GstVideoFilterClass * g_class)
GST_DEBUG_FUNCPTR (gst_video_filter_get_unit_size);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_video_filter_transform);
trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_video_filter_transform_ip);
trans_class->transform_meta =
GST_DEBUG_FUNCPTR (gst_video_filter_transform_meta);
GST_DEBUG_CATEGORY_INIT (gst_video_filter_debug, "videofilter", 0,
"videofilter");