avcodec/vc2enc: Clear coef_buf on allocation
authorMichael Niedermayer <michael@niedermayer.cc>
Wed, 15 Nov 2017 15:53:34 +0000 (16:53 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Fri, 1 Dec 2017 23:28:59 +0000 (00:28 +0100)
Fixes: Use of uninitialized memory
Fixes: assertion failure

Reviewed-by: <atomnuker>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6d00905f8134a2932e5c00dd1ec8b2a1f0a38035)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/vc2enc.c

index eb4e1e3..ac551ca 100644 (file)
@@ -1088,7 +1088,7 @@ static av_cold int vc2_encode_init(AVCodecContext *avctx)
         p->dwt_width  = w = FFALIGN(p->width,  (1 << s->wavelet_depth));
         p->dwt_height = h = FFALIGN(p->height, (1 << s->wavelet_depth));
         p->coef_stride = FFALIGN(p->dwt_width, 32);
-        p->coef_buf = av_malloc(p->coef_stride*p->dwt_height*sizeof(dwtcoef));
+        p->coef_buf = av_mallocz(p->coef_stride*p->dwt_height*sizeof(dwtcoef));
         if (!p->coef_buf)
             goto alloc_fail;
         for (level = s->wavelet_depth-1; level >= 0; level--) {