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