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videobalance: Implement basetransform meta transform function

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This makes sure we can pass through more metas correctly, e.g.
GstVideoOverlayComposition meta.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9004>
This commit is contained in:
Sebastian Dröge 2025-05-17 15:24:29 +03:00 committed by GStreamer Marge Bot
parent 6072e54666
commit 34efd430e4
1 changed files with 28 additions and 0 deletions
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28
subprojects/gst-plugins-good/gst/videofilter/gstvideobalance.c
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@ -541,6 +541,32 @@ not_negotiated:
}
}
static gboolean
gst_video_balance_transform_meta (GstBaseTransform * bt,
GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf)
{
const GstMetaInfo *info = meta->info;
gboolean should_copy = TRUE;
const gchar *valid_tags[] = {
GST_META_TAG_VIDEO_STR,
GST_META_TAG_VIDEO_ORIENTATION_STR,
GST_META_TAG_VIDEO_SIZE_STR,
GST_META_TAG_VIDEO_COLORSPACE_STR,
NULL
};
should_copy = gst_meta_api_type_tags_contain_only (info->api, valid_tags);
/* Can't handle the tags in this meta, let the parent class handle it */
if (!should_copy) {
return GST_BASE_TRANSFORM_CLASS (parent_class)->transform_meta (bt,
outbuf, meta, inbuf);
}
/* No need to transform, we can safely copy this meta */
return TRUE;
}
static void
gst_video_balance_finalize (GObject * object)
{
@ -610,6 +636,8 @@ gst_video_balance_class_init (GstVideoBalanceClass * klass)
trans_class->transform_ip_on_passthrough = FALSE;
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_video_balance_transform_caps);
trans_class->transform_meta =
GST_DEBUG_FUNCPTR (gst_video_balance_transform_meta);
vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_video_balance_set_info);
vfilter_class->transform_frame_ip =