[FFmpeg-cvslog] dnxhdenc: fix mb_rc size

Michael Niedermayer git at videolan.org
Thu Mar 12 00:52:47 CET 2015


ffmpeg | branch: release/0.7 | Michael Niedermayer <michaelni at gmx.at> | Fri Jan 17 20:09:48 2014 +0100| [0701f7c5c3f9e8a336d1f5773a89a5e63f8f5497] | 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=0701f7c5c3f9e8a336d1f5773a89a5e63f8f5497
---

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

diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c
index 62bc9f0..0c2a965 100644
--- a/libavcodec/dnxhdenc.c
+++ b/libavcodec/dnxhdenc.c
@@ -151,7 +151,7 @@ static int dnxhd_init_qmat(DNXHDEncContext *ctx, int lbias, int cbias)
 
 static 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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