From 67572963864b4da79432783461c43992f5fc9bad Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Wed, 3 Dec 2014 10:14:34 +0100
Subject: [PATCH] video-converter: only do dithering when needed

Only do dithering when one of the quantizers is > 1.
---
 gst-libs/gst/video/video-converter.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gst-libs/gst/video/video-converter.c b/gst-libs/gst/video/video-converter.c
index d15cabc77c..90a019075b 100644
--- a/gst-libs/gst/video/video-converter.c
+++ b/gst-libs/gst/video/video-converter.c
@@ -1466,10 +1466,11 @@ chain_dither (GstVideoConverter * convert, GstLineCache * prev)
           flags |= GST_VIDEO_DITHER_FLAG_QUANTIZE;
           quant[i] = target_quant;
         }
-        do_dither = TRUE;
       } else {
         quant[i] = 0;
       }
+      if (quant[i] > 1)
+        do_dither = TRUE;
     }
   }