static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom) { AVStream *st; if (c->fc->nb_streams < 1) return 0; if (atom.size <= 40) return 0; st = c->fc->streams[c->fc->nb_streams-1]; if ((uint64_t)atom.size > (1<<30)) return AVERROR_INVALIDDATA; av_free(st->codec->extradata); st->codec->extradata = av_mallocz(atom.size - 40 + FF_INPUT_BUFFER_PADDING_SIZE); if (!st->codec->extradata) return AVERROR(ENOMEM); st->codec->extradata_size = atom.size - 40; avio_skip(pb, 40); avio_read(pb, st->codec->extradata, atom.size - 40); return 0; }