s->bpp = avctx->bits_per_coded_sample >> 3;
s->buffer_size = avctx->width * avctx->height * 4;
s->pbuffer_size = avctx->width * avctx->height * 4;
- s->buffer = av_malloc(s->buffer_size);
- s->pbuffer = av_malloc(s->pbuffer_size);
+ s->buffer = av_mallocz(s->buffer_size);
+ s->pbuffer = av_mallocz(s->pbuffer_size);
if (!s->buffer || !s->pbuffer)
return AVERROR(ENOMEM);