From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Fri, 3 Apr 2020 09:56:57 +0000 (+0200)
Subject: codec_support/h263: allocate more space in MV predictor
X-Git-Url: https://git.nihav.org/?p=nihav.git;a=commitdiff_plain;h=7588f4f2f381f948993daa01683d7a995e259c39

codec_support/h263: allocate more space in MV predictor

In case of left neigbour access wraparound this will always return zero MV.
---

diff --git a/nihav-codec-support/src/codecs/h263/decoder.rs b/nihav-codec-support/src/codecs/h263/decoder.rs
index 2707e76..a78bf4f 100644
--- a/nihav-codec-support/src/codecs/h263/decoder.rs
+++ b/nihav-codec-support/src/codecs/h263/decoder.rs
@@ -22,7 +22,7 @@ impl MVInfo {
     fn reset(&mut self, mb_w: usize, mb_start: usize, mvmode: MVMode) {
         self.mb_start  = mb_start;
         self.mb_w      = mb_w;
-        self.mb_stride = mb_w * 2;
+        self.mb_stride = mb_w * 2 + 2;
         self.mv.resize(self.mb_stride * 3, ZERO_MV);
         self.mvmode    = mvmode;
     }