static int mov_read_smi(MOVContext *c, AVIOContext *pb, MOVAtom atom) { AVStream *st; if (c->fc->nb_streams < 1) return 0; st = c->fc->streams[c->fc->nb_streams-1]; if ((uint64_t)atom.size > (1<<30)) return AVERROR_INVALIDDATA; // currently SVQ3 decoder expect full STSD header - so let's fake it // this should be fixed and just SMI header should be passed av_free(st->codec->extradata); st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE); if (!st->codec->extradata) return AVERROR(ENOMEM); st->codec->extradata_size = 0x5a + atom.size; memcpy(st->codec->extradata, "SVQ3", 4); // fake avio_read(pb, st->codec->extradata + 0x5a, atom.size); av_log(c->fc, AV_LOG_TRACE, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a); return 0; }