INDEX_BASE        359 libavformat/wtvenc.c     write_chunk_header2(s, &ff_SBE2_STREAM_DESC_EVENT, 0x80000000 | (st->index + INDEX_BASE));
INDEX_BASE        361 libavformat/wtvenc.c     avio_wl32(pb, st->index + INDEX_BASE); //stream_id
INDEX_BASE        448 libavformat/wtvenc.c     write_chunk_header(s, &ff_timestamp_guid, 56, 0x40000000 | (INDEX_BASE + pkt->stream_index));
INDEX_BASE        491 libavformat/wtvenc.c     write_chunk_header(s, &ff_data_guid, pkt->size, INDEX_BASE + pkt->stream_index);