if let TxType::Transform8(ref params) = band.ttype {
decode_block8x8(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
if is_intra {
if let TxType::Transform8(ref params) = band.ttype {
decode_block8x8(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
if is_intra {