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