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h264: change underread for 10bit QPEL to overread.
authorRonald S. Bultje <rsbultje@gmail.com>
Sun, 26 Feb 2012 01:24:56 +0000 (17:24 -0800)
committerRonald S. Bultje <rsbultje@gmail.com>
Fri, 2 Mar 2012 18:33:05 +0000 (10:33 -0800)
This prevents us from reading before the start of the buffer, and thus
prevents crashes resulting from this behaviour. Fixes bug 237.

libavcodec/x86/h264_qpel_10bit.asm patch | blob | history

diff --git a/libavcodec/x86/h264_qpel_10bit.asm b/libavcodec/x86/h264_qpel_10bit.asm
index 51412e3..bdacf9f 100644 (file)
--- a/libavcodec/x86/h264_qpel_10bit.asm
+++ b/libavcodec/x86/h264_qpel_10bit.asm
@@ -619,7 +619,7 @@ MC MC33
 %define PAD 12
 %define COUNT 2
 %else
-%define PAD 0
+%define PAD 4
 %define COUNT 3
 %endif
 put_hv%2_10_%1:
Domain: Multimedia / Media Content;