static int mpc8_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags) { AVStream *st = s->streams[stream_index]; MPCContext *c = s->priv_data; int index = av_index_search_timestamp(st, timestamp, flags); if(index < 0) return -1; avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET); c->frame = st->index_entries[index].timestamp; return 0; }