palemoon-dev/platform/media/libvpx/clamp-abs-QIndex.patch

# HG changeset patch
# User Gerald Squelart <gsquelart@mozilla.com>
# Parent  a2eeff55028dc78e98a16e1d8840d77378f37408
Bug 1224361 - Clamp QIndex also in abs-value mode - r=rillian

diff --git a/media/libvpx/vp8/decoder/decodeframe.c b/media/libvpx/vp8/decoder/decodeframe.c
--- a/media/libvpx/vp8/decoder/decodeframe.c
+++ b/media/libvpx/vp8/decoder/decodeframe.c
@@ -66,20 +66,19 @@ void vp8_mb_init_dequantizer(VP8D_COMP *
     if (xd->segmentation_enabled)
     {
         /* Abs Value */
         if (xd->mb_segement_abs_delta == SEGMENT_ABSDATA)
             QIndex = xd->segment_feature_data[MB_LVL_ALT_Q][mbmi->segment_id];
 
         /* Delta Value */
         else
-        {
             QIndex = pc->base_qindex + xd->segment_feature_data[MB_LVL_ALT_Q][mbmi->segment_id];
-            QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0;    /* Clamp to valid range */
-        }
+
+        QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0;    /* Clamp to valid range */
     }
     else
         QIndex = pc->base_qindex;
 
     /* Set up the macroblock dequant constants */
     xd->dequant_y1_dc[0] = 1;
     xd->dequant_y1[0] = pc->Y1dequant[QIndex][0];
     xd->dequant_y2[0] = pc->Y2dequant[QIndex][0];