/* load trees to extradata, they will be unpacked by decoder */
- st->codec->extradata = av_malloc(smk->treesize + 16 + FF_INPUT_BUFFER_PADDING_SIZE);
+ st->codec->extradata = av_mallocz(smk->treesize + 16 +
+ FF_INPUT_BUFFER_PADDING_SIZE);
st->codec->extradata_size = smk->treesize + 16;
if(!st->codec->extradata){
av_log(s, AV_LOG_ERROR, "Cannot allocate %i bytes of extradata\n", smk->treesize + 16);