dvbsuboverlay: fix rendering artefacts

Initialize source x position for odd height special case.

diff --git a/gst/dvbsuboverlay/gstdvbsuboverlay.c b/gst/dvbsuboverlay/gstdvbsuboverlay.c
index 9962077..56c3a61 100644 (file)
--- a/gst/dvbsuboverlay/gstdvbsuboverlay.c
+++ b/gst/dvbsuboverlay/gstdvbsuboverlay.c
@@ -711,6 +711,7 @@ blit_i420 (GstDVBSubOverlay * overlay, DVBSubtitles * subs, GstBuffer * buffer)
 
     /* Odd height */
     if (y < dh) {
+      sx = 0;
       for (x = 0; x < dw - 1; x += 2) {
         color =
             sub_region->pict.palette[src[(sy >> 16) * src_stride + (sx >> 16)]];