From: Matthew Waters <matthew@centricular.com>
Date: Wed, 11 Mar 2020 11:39:35 +0000 (+1100)
Subject: basetransform: allow not passthrough if generate_output is implemented
X-Git-Tag: 1.19.3~977
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4154baedb1069815194f254101de1557fb6ccea5;p=platform%2Fupstream%2Fgstreamer.git

basetransform: allow not passthrough if generate_output is implemented

This allows an element to not require implementing transform or
transform_ip.
---

diff --git a/libs/gst/base/gstbasetransform.c b/libs/gst/base/gstbasetransform.c
index 3c74c4b..4164bd7 100644
--- a/libs/gst/base/gstbasetransform.c
+++ b/libs/gst/base/gstbasetransform.c
@@ -2554,7 +2554,7 @@ gst_base_transform_src_activate_mode (GstPad * pad, GstObject * parent,
  * useful for filters that do not care about negotiation.
  *
  * Always %TRUE for filters which don't implement either a transform
- * or transform_ip method.
+ * or transform_ip or generate_output method.
  *
  * MT safe.
  */
@@ -2570,7 +2570,8 @@ gst_base_transform_set_passthrough (GstBaseTransform * trans,
 
   GST_OBJECT_LOCK (trans);
   if (!passthrough) {
-    if (bclass->transform_ip || bclass->transform)
+    if (bclass->transform_ip || bclass->transform || (bclass->generate_output
+            && bclass->generate_output != default_generate_output))
       trans->priv->passthrough = FALSE;
   } else {
     trans->priv->passthrough = TRUE;