[FFmpeg-cvslog] dnxhdenc: fix mb_rc size

Michael Niedermayer git at videolan.org
Tue Mar 4 01:18:59 CET 2014


ffmpeg | branch: release/2.0 | Michael Niedermayer <michaelni at gmx.at> | Fri Jan 17 20:09:48 2014 +0100| [9847f02fafac16c1c3b72bad2f9bb5ccdd4d3678] | committer: Michael Niedermayer

dnxhdenc: fix mb_rc size

Fixes out of array access with RC_VARIANCE set to 0

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
(cherry picked from commit f1caaa1c61310beba705957e6366f0392a0b005b)

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9847f02fafac16c1c3b72bad2f9bb5ccdd4d3678
---

 libavcodec/dnxhdenc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c
index 0af948e..ac19ea6 100644
--- a/libavcodec/dnxhdenc.c
+++ b/libavcodec/dnxhdenc.c
@@ -236,7 +236,7 @@ static av_cold int dnxhd_init_qmat(DNXHDEncContext *ctx, int lbias, int cbias)
 
 static av_cold int dnxhd_init_rc(DNXHDEncContext *ctx)
 {
-    FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->mb_rc, 8160*ctx->m.avctx->qmax*sizeof(RCEntry), fail);
+    FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->mb_rc, 8160*(ctx->m.avctx->qmax + 1)*sizeof(RCEntry), fail);
     if (ctx->m.avctx->mb_decision != FF_MB_DECISION_RD)
         FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->mb_cmp, ctx->m.mb_num*sizeof(RCCMPEntry), fail);
 



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