--- /dev/null
+use nihav_core::frame::*;
+use nihav_codec_support::codecs::MV;
+use super::{CurrentMBInfo, I4X4_SCAN};
+use super::dsp::*;
+use super::pic_ref::FrameRefs;
+use super::slice::{SliceHeader, WeightInfo, DEF_WEIGHT_INFO};
+use super::types::*;
+
+fn pred_intra(frm: &mut NASimpleVideoFrame<u8>, sstate: &SliceState, mb_info: &CurrentMBInfo) {
+ let yoff = frm.offset[0] + sstate.mb_x * 16 + sstate.mb_y * 16 * frm.stride[0];
+ match mb_info.mb_type {
+ MBType::Intra16x16(imode, _, _) => {
+ let id = if imode != 2 || (sstate.has_top && sstate.has_left) {
+ imode as usize
+ } else if !sstate.has_top && !sstate.has_left {
+ IPRED8_DC128
+ } else if !sstate.has_left {
+ IPRED8_DC_TOP
+ } else {
+ IPRED8_DC_LEFT
+ };
+ IPRED_FUNCS16X16[id](&mut frm.data[yoff..], frm.stride[0], &sstate.top_line_y[sstate.mb_x * 16..], &sstate.left_y);
+ },
+ MBType::Intra8x8 => {
+ let mut ictx = IPred8Context::new();
+ for part in 0..4 {
+ let x = (part & 1) * 2;
+ let y = part & 2;
+ let blk4 = x + y * 4;
+
+ let cur_yoff = yoff + x * 4 + y * 4 * frm.stride[0];
+ let has_top = y > 0 || sstate.has_top;
+ let has_left = x > 0 || sstate.has_left;
+ let imode = mb_info.ipred[blk4];
+ let id = if imode != IntraPredMode::DC || (has_top && has_left) {
+ let im_id: u8 = imode.into();
+ im_id as usize
+ } else if !has_top && !has_left {
+ IPRED4_DC128
+ } else if !has_left {
+ IPRED4_DC_TOP
+ } else {
+ IPRED4_DC_LEFT
+ };
+ let mb_idx = sstate.mb_x + sstate.mb_y * sstate.mb_w;
+ let noright = (y == 2 || sstate.mb_x == sstate.mb_w - 1 || mb_idx < sstate.mb_start + sstate.mb_w) && (x == 2);
+ let has_tl = (has_top && x > 0) || (has_left && y > 0) || (x == 0 && y == 0 && sstate.mb_x > 0 && mb_idx > sstate.mb_start + sstate.mb_w);
+ if id != IPRED4_DC128 {
+ let top = if y == 0 {
+ &sstate.top_line_y[sstate.mb_x * 16 + x * 4..]
+ } else {
+ &frm.data[cur_yoff - frm.stride[0]..]
+ };
+ let mut left_buf = [0; 9];
+ let left = if x == 0 {
+ &sstate.left_y[y * 4..]
+ } else {
+ if has_tl {
+ if y == 0 {
+ left_buf[0] = sstate.top_line_y[sstate.mb_x * 16 + x * 4 - 1];
+ } else {
+ left_buf[0] = frm.data[cur_yoff - 1 - frm.stride[0]];
+ }
+ }
+ if has_left {
+ for (dst, src) in left_buf[1..].iter_mut().zip(frm.data[cur_yoff - 1..].chunks(frm.stride[0])) {
+ *dst = src[0];
+ }
+ }
+ &left_buf
+ };
+ ictx.fill(top, left, has_top, has_top && !noright, has_left, has_tl);
+ }
+ IPRED_FUNCS8X8_LUMA[id](&mut frm.data[cur_yoff..], frm.stride[0], &ictx);
+ if mb_info.coded[blk4] {
+ add_coeffs8(frm.data, cur_yoff, frm.stride[0], &mb_info.coeffs8x8[part].coeffs);
+ }
+ }
+ },
+ MBType::Intra4x4 => {
+ for &(x,y) in I4X4_SCAN.iter() {
+ let x = x as usize;
+ let y = y as usize;
+ let cur_yoff = yoff + x * 4 + y * 4 * frm.stride[0];
+ let has_top = y > 0 || sstate.has_top;
+ let has_left = x > 0 || sstate.has_left;
+ let imode = mb_info.ipred[x + y * 4];
+ let id = if imode != IntraPredMode::DC || (has_top && has_left) {
+ let im_id: u8 = imode.into();
+ im_id as usize
+ } else if !has_top && !has_left {
+ IPRED4_DC128
+ } else if !has_left {
+ IPRED4_DC_TOP
+ } else {
+ IPRED4_DC_LEFT
+ };
+ let noright = (sstate.mb_x == sstate.mb_w - 1 || sstate.mb_x + sstate.mb_y * sstate.mb_w < sstate.mb_start + sstate.mb_w) && (x == 3);
+ let tr: [u8; 4] = if y == 0 {
+ let tsrc = &sstate.top_line_y[sstate.mb_x * 16 + x * 4..];
+ if has_top && !noright {
+ [tsrc[4], tsrc[5], tsrc[6], tsrc[7]]
+ } else if has_top {
+ [tsrc[3]; 4]
+ } else {
+ [0; 4]
+ }
+ } else if (x & 1) == 0 || (x == 1 && y == 2) {
+ let i = cur_yoff - frm.stride[0];
+ [frm.data[i + 4], frm.data[i + 5], frm.data[i + 6], frm.data[i + 7]]
+ } else {
+ let i = cur_yoff - frm.stride[0];
+ [frm.data[i + 3], frm.data[i + 3], frm.data[i + 3], frm.data[i + 3]]
+ };
+ let mut top = [128; 4];
+ let mut left = [128; 9];
+ if y == 0 {
+ if has_top {
+ top.copy_from_slice(&sstate.top_line_y[sstate.mb_x * 16 + x * 4..][..4]);
+ }
+ } else {
+ top.copy_from_slice(&frm.data[cur_yoff - frm.stride[0]..][..4]);
+ }
+ if x == 0 {
+ if has_left {
+ for (dst, &src) in left.iter_mut().zip(sstate.left_y[y * 4..].iter()) {
+ *dst = src;
+ }
+ }
+ } else {
+ if y == 0 {
+ if x == 0 {
+ left[0] = sstate.left_y[y * 4];
+ } else if has_top {
+ left[0] = sstate.top_line_y[sstate.mb_x * 16 + x * 4 - 1];
+ }
+ } else {
+ left[0] = frm.data[cur_yoff - frm.stride[0] - 1];
+ }
+ for (dst, row) in left[1..].iter_mut().zip(frm.data[cur_yoff - 1..].chunks(frm.stride[0])) {
+ *dst = row[0];
+ }
+ }
+ IPRED_FUNCS4X4[id](&mut frm.data[cur_yoff..], frm.stride[0], &top, &left, &tr);
+ if mb_info.coded[x + y * 4] {
+ add_coeffs(frm.data, cur_yoff, frm.stride[0], &mb_info.coeffs[x + y * 4]);
+ }
+ }
+ },
+ _ => unreachable!(),
+ };
+ let id = if mb_info.chroma_ipred != 0 || (sstate.has_top && sstate.has_left) {
+ mb_info.chroma_ipred as usize
+ } else if !sstate.has_top && !sstate.has_left {
+ IPRED8_DC128
+ } else if !sstate.has_left {
+ IPRED8_DC_TOP
+ } else {
+ IPRED8_DC_LEFT
+ };
+ for chroma in 1..3 {
+ let off = frm.offset[chroma] + sstate.mb_x * 8 + sstate.mb_y * 8 * frm.stride[chroma];
+ let top = &sstate.top_line_c[chroma - 1][sstate.mb_x * 8..];
+ IPRED_FUNCS8X8_CHROMA[id](&mut frm.data[off..], frm.stride[chroma], top, &sstate.left_c[chroma - 1]);
+ }
+}
+
+fn add_luma(frm: &mut NASimpleVideoFrame<u8>, sstate: &SliceState, mb_info: &CurrentMBInfo) {
+ let mut yoff = frm.offset[0] + sstate.mb_x * 16 + sstate.mb_y * 16 * frm.stride[0];
+ if !mb_info.transform_size_8x8 {
+ for y in 0..4 {
+ for x in 0..4 {
+ if mb_info.coded[x + y * 4] {
+ add_coeffs(frm.data, yoff + x * 4, frm.stride[0], &mb_info.coeffs[x + y * 4]);
+ }
+ }
+ yoff += frm.stride[0] * 4;
+ }
+ } else {
+ for y in 0..2 {
+ for x in 0..2 {
+ if mb_info.coded[x * 2 + y * 2 * 4] {
+ add_coeffs8(frm.data, yoff + x * 8, frm.stride[0], &mb_info.coeffs8x8[x + y * 2].coeffs);
+ }
+ }
+ yoff += frm.stride[0] * 8;
+ }
+ }
+}
+
+fn add_chroma(frm: &mut NASimpleVideoFrame<u8>, sstate: &SliceState, mb_info: &CurrentMBInfo) {
+ for chroma in 1..3 {
+ let mut off = frm.offset[chroma] + sstate.mb_x * 8 + sstate.mb_y * 8 * frm.stride[chroma];
+ for y in 0..2 {
+ for x in 0..2 {
+ let blk_no = 16 + (chroma - 1) * 4 + x + y * 2;
+ if mb_info.coded[blk_no] || mb_info.coeffs[blk_no][0] != 0 {
+ add_coeffs(frm.data, off + x * 4, frm.stride[chroma], &mb_info.coeffs[blk_no]);
+ }
+ }
+ off += frm.stride[chroma] * 4;
+ }
+ }
+}
+
+fn do_p_mc(frm: &mut NASimpleVideoFrame<u8>, xpos: usize, ypos: usize, w: usize, h: usize, mv: MV, ref_pic: Option<NAVideoBufferRef<u8>>, weight: &WeightInfo) {
+ if let Some(buf) = ref_pic {
+ if !weight.is_weighted() {
+ do_mc(frm, buf, xpos, ypos, w, h, mv);
+ } else {
+ let mut ytmp = [0; 16 * 16];
+ let mut utmp = [0; 16 * 16];
+ let mut vtmp = [0; 16 * 16];
+ mc_blocks(&mut ytmp, &mut utmp, &mut vtmp, buf, xpos, ypos, w, h, mv);
+
+ let yoff = frm.offset[0] + xpos + ypos * frm.stride[0];
+ let yw = if weight.luma_weighted {
+ [weight.luma_weight, weight.luma_offset, weight.luma_shift as i8]
+ } else {
+ [1, 0, 0]
+ };
+ put_block_weighted(&mut frm.data[yoff..], frm.stride[0], &ytmp, w, h, yw);
+
+ for chroma in 0..2 {
+ let cstride = frm.stride[chroma + 1];
+ let coff = frm.offset[chroma + 1] + xpos / 2 + ypos / 2 * cstride;
+ let cw = if weight.chroma_weighted {
+ [weight.chroma_weight[chroma], weight.chroma_offset[chroma], weight.chroma_shift as i8]
+ } else {
+ [1, 0, 0]
+ };
+ let csrc = if chroma == 0 { &utmp } else { &vtmp };
+ put_block_weighted(&mut frm.data[coff..], cstride, csrc, w / 2, h / 2, cw);
+ }
+ }
+ } else {
+ gray_block(frm, xpos, ypos, w, h);
+ }
+}
+
+fn do_b_mc(frm: &mut NASimpleVideoFrame<u8>, mode: BMode, xpos: usize, ypos: usize, w: usize, h: usize, mv0: MV, ref_pic0: Option<NAVideoBufferRef<u8>>, weight0: &WeightInfo, mv1: MV, ref_pic1: Option<NAVideoBufferRef<u8>>, weight1: &WeightInfo, avg_buf: &mut NAVideoBufferRef<u8>) {
+ let do_weight = match (mode, weight0.is_weighted(), weight1.is_weighted()) {
+ (BMode::L0, true, _) => true,
+ (BMode::L1, _, true) => true,
+ (BMode::Bi, true, true) => true,
+ _ => false,
+ };
+ if !do_weight {
+ match mode {
+ BMode::L0 => {
+ if let Some(buf) = ref_pic0 {
+ do_mc(frm, buf, xpos, ypos, w, h, mv0);
+ } else {
+ gray_block(frm, xpos, ypos, w, h);
+ }
+ },
+ BMode::L1 => {
+ if let Some(buf) = ref_pic1 {
+ do_mc(frm, buf, xpos, ypos, w, h, mv1);
+ } else {
+ gray_block(frm, xpos, ypos, w, h);
+ }
+ },
+ BMode::Bi => {
+ match (ref_pic0, ref_pic1) {
+ (Some(buf0), Some(buf1)) => {
+ do_mc(frm, buf0, xpos, ypos, w, h, mv0);
+ do_mc_avg(frm, buf1, xpos, ypos, w, h, mv1, avg_buf);
+ },
+ (Some(buf0), None) => {
+ do_mc(frm, buf0, xpos, ypos, w, h, mv0);
+ },
+ (None, Some(buf1)) => {
+ do_mc(frm, buf1, xpos, ypos, w, h, mv1);
+ },
+ (None, None) => {
+ gray_block(frm, xpos, ypos, w, h);
+ },
+ };
+ },
+ };
+ } else {
+ let mut ytmp0 = [0x80; 16 * 16];
+ let mut utmp0 = [0x80; 16 * 16];
+ let mut vtmp0 = [0x80; 16 * 16];
+ let mut ytmp1 = [0x80; 16 * 16];
+ let mut utmp1 = [0x80; 16 * 16];
+ let mut vtmp1 = [0x80; 16 * 16];
+ match (mode, ref_pic0, ref_pic1) {
+ (BMode::L0, Some(buf), _) | (BMode::L1, _, Some(buf)) => {
+ let (mv, weight) = if mode == BMode::L0 { (mv0, weight0) } else { (mv1, weight1) };
+ mc_blocks(&mut ytmp0, &mut utmp0, &mut vtmp0, buf, xpos, ypos, w, h, mv);
+
+ let yoff = frm.offset[0] + xpos + ypos * frm.stride[0];
+ let yw = if weight.luma_weighted {
+ [weight.luma_weight, weight.luma_offset, weight.luma_shift as i8]
+ } else {
+ [1, 0, 0]
+ };
+ put_block_weighted(&mut frm.data[yoff..], frm.stride[0], &ytmp0, w, h, yw);
+
+ for chroma in 0..2 {
+ let cstride = frm.stride[chroma + 1];
+ let coff = frm.offset[chroma + 1] + xpos / 2 + ypos / 2 * cstride;
+ let cw = if weight.chroma_weighted {
+ [weight.chroma_weight[chroma], weight.chroma_offset[chroma], weight.chroma_shift as i8]
+ } else {
+ [1, 0, 0]
+ };
+ let csrc = if chroma == 0 { &utmp0 } else { &vtmp0 };
+ put_block_weighted(&mut frm.data[coff..], cstride, csrc, w / 2, h / 2, cw);
+ }
+ },
+ (BMode::Bi, Some(buf0), Some(buf1)) => { // do both and avg
+ mc_blocks(&mut ytmp0, &mut utmp0, &mut vtmp0, buf0, xpos, ypos, w, h, mv0);
+ mc_blocks(&mut ytmp1, &mut utmp1, &mut vtmp1, buf1, xpos, ypos, w, h, mv1);
+
+ let yoff = frm.offset[0] + xpos + ypos * frm.stride[0];
+ let yw = match (weight0.luma_weighted, weight1.luma_weighted) {
+ (true, true) => [weight0.luma_weight, weight0.luma_offset, weight1.luma_weight, weight1.luma_offset, weight0.luma_shift as i8],
+ (true, false) => [weight0.luma_weight, weight0.luma_offset, 1 << weight0.luma_shift, 0, weight0.luma_shift as i8],
+ (false, true) => [1 << weight1.luma_shift, 0, weight1.luma_weight, weight1.luma_offset, weight1.luma_shift as i8],
+ (false, false) => [1, 0, 1, 0, 0],
+ };
+ put_block_weighted2(&mut frm.data[yoff..], frm.stride[0], &ytmp0, &ytmp1, w, h, yw);
+
+ for chroma in 0..2 {
+ let cstride = frm.stride[chroma + 1];
+ let coff = frm.offset[chroma + 1] + xpos / 2 + ypos / 2 * cstride;
+ let cw0 = weight0.chroma_weight[chroma];
+ let co0 = weight0.chroma_offset[chroma];
+ let cw1 = weight1.chroma_weight[chroma];
+ let co1 = weight1.chroma_offset[chroma];
+ let cw = match (weight0.chroma_weighted, weight1.chroma_weighted) {
+ (true, true) => [cw0, co0, cw1, co1, weight0.luma_shift as i8],
+ (true, false) => [cw0, co0, 1 << weight0.luma_shift, 0, weight0.luma_shift as i8],
+ (false, true) => [1 << weight1.luma_shift, 0, cw1, co1, weight1.luma_shift as i8],
+ (false, false) => [1, 0, 1, 0, 0],
+ };
+ let csrc0 = if chroma == 0 { &utmp0 } else { &vtmp0 };
+ let csrc1 = if chroma == 0 { &utmp1 } else { &vtmp1 };
+ put_block_weighted2(&mut frm.data[coff..], cstride, csrc0, csrc1, w / 2, h / 2, cw);
+ }
+ },
+ _ => {
+ gray_block(frm, xpos, ypos, w, h);
+ },
+ };
+ }
+}
+
+fn get_weights(slice_hdr: &SliceHeader, frame_refs: &FrameRefs, mode: BMode, weight_mode: u8, ref_l0: PicRef, ref_l1: PicRef) -> (WeightInfo, WeightInfo) {
+ let idx_l0 = ref_l0.index();
+ let idx_l1 = ref_l1.index();
+ if mode != BMode::Bi || weight_mode != 2 {
+ (slice_hdr.get_weight(0, idx_l0), slice_hdr.get_weight(1, idx_l1))
+ } else if let (Some(Some(ref pic0)), Some(Some(ref pic1))) = (frame_refs.ref_list0.get(idx_l0), frame_refs.ref_list1.get(idx_l1)) {
+ let r0_poc = pic0.full_id as u16;
+ let r1_poc = pic1.full_id as u16;
+ let cur_id = frame_refs.cur_id as u16;
+ if (r0_poc == r1_poc) || pic0.long_term.is_some() || pic1.long_term.is_some() {
+ return (DEF_WEIGHT_INFO, DEF_WEIGHT_INFO);
+ }
+
+ let td = (i32::from(r1_poc) - i32::from(r0_poc)).max(-128).min(127);
+ let tx = (16384 + (td / 2).abs()) / td;
+ let tb = (i32::from(cur_id) - i32::from(r0_poc)).max(-128).min(127);
+ let scale = ((tb * tx + 32) >> 6).max(-1024).min(1023);
+ if scale == 128 || (scale >> 2) < -64 || (scale >> 2) > 128 {
+ return (DEF_WEIGHT_INFO, DEF_WEIGHT_INFO);
+ }
+ let w1 = (scale >> 2) as i8;
+ let w0 = 64 - w1;
+
+ let weight0 = WeightInfo {
+ luma_weighted: true,
+ luma_weight: w0,
+ luma_offset: 0,
+ luma_shift: 5,
+ chroma_weighted: true,
+ chroma_weight: [w0; 2],
+ chroma_offset: [0; 2],
+ chroma_shift: 5,
+ };
+ let weight1 = WeightInfo {
+ luma_weighted: true,
+ luma_weight: w1,
+ luma_offset: 0,
+ luma_shift: 5,
+ chroma_weighted: true,
+ chroma_weight: [w1; 2],
+ chroma_offset: [0; 2],
+ chroma_shift: 5,
+ };
+
+ (weight0, weight1)
+ } else {
+ (DEF_WEIGHT_INFO, DEF_WEIGHT_INFO)
+ }
+}
+
+pub fn recon_mb(frm: &mut NASimpleVideoFrame<u8>, slice_hdr: &SliceHeader, mb_info: &CurrentMBInfo, sstate: &mut SliceState, frame_refs: &FrameRefs, avg_buf: &mut NAVideoBufferRef<u8>, weight_mode: u8) {
+ let xpos = sstate.mb_x * 16;
+ let ypos = sstate.mb_y * 16;
+
+ match mb_info.mb_type {
+ MBType::Intra16x16(_, _, _) => {
+ pred_intra(frm, &sstate, &mb_info);
+ },
+ MBType::Intra4x4 | MBType::Intra8x8 => {
+ pred_intra(frm, &sstate, &mb_info);
+ },
+ MBType::PCM => {},
+ MBType::PSkip => {
+ let mv = sstate.get_cur_blk4(0).mv[0];
+ let rpic = frame_refs.select_ref_pic(0, 0);
+ let weight = &slice_hdr.get_weight(0, 0);
+ do_p_mc(frm, xpos, ypos, 16, 16, mv, rpic, weight);
+ },
+ MBType::P16x16 => {
+ let mv = sstate.get_cur_blk4(0).mv[0];
+ let rpic = frame_refs.select_ref_pic(0, mb_info.ref_l0[0].index());
+ let weight = &slice_hdr.get_weight(0, mb_info.ref_l0[0].index());
+ do_p_mc(frm, xpos, ypos, 16, 16, mv, rpic, weight);
+ },
+ MBType::P16x8 | MBType::P8x16 => {
+ let (bw, bh, bx, by) = if mb_info.mb_type == MBType::P16x8 {
+ (16, 8, 0, 8)
+ } else {
+ (8, 16, 8, 0)
+ };
+ let mv = sstate.get_cur_blk4(0).mv[0];
+ let rpic = frame_refs.select_ref_pic(0, mb_info.ref_l0[0].index());
+ let weight = &slice_hdr.get_weight(0, mb_info.ref_l0[0].index());
+ do_p_mc(frm, xpos, ypos, bw, bh, mv, rpic, weight);
+ let mv = sstate.get_cur_blk4(bx / 4 + by).mv[0];
+ let rpic = frame_refs.select_ref_pic(0, mb_info.ref_l0[1].index());
+ let weight = &slice_hdr.get_weight(0, mb_info.ref_l0[1].index());
+ do_p_mc(frm, xpos + bx, ypos + by, bw, bh, mv, rpic, weight);
+ },
+ MBType::P8x8 | MBType::P8x8Ref0 => {
+ for part in 0..4 {
+ let bx = (part & 1) * 8;
+ let by = (part & 2) * 4;
+ let mv = sstate.get_cur_blk4(bx / 4 + by).mv[0];
+ let rpic = frame_refs.select_ref_pic(0, mb_info.ref_l0[part].index());
+ let weight = &slice_hdr.get_weight(0, mb_info.ref_l0[part].index());
+
+ match mb_info.sub_mb_type[part] {
+ SubMBType::P8x8 => {
+ do_p_mc(frm, xpos + bx, ypos + by, 8, 8, mv, rpic, weight);
+ },
+ SubMBType::P8x4 => {
+ do_p_mc(frm, xpos + bx, ypos + by, 8, 4, mv, rpic.clone(), weight);
+ let mv = sstate.get_cur_blk4(bx / 4 + by + 4).mv[0];
+ do_p_mc(frm, xpos + bx, ypos + by + 4, 8, 4, mv, rpic, weight);
+ },
+ SubMBType::P4x8 => {
+ do_p_mc(frm, xpos + bx, ypos + by, 4, 8, mv, rpic.clone(), weight);
+ let mv = sstate.get_cur_blk4(bx / 4 + by + 1).mv[0];
+ do_p_mc(frm, xpos + bx + 4, ypos + by, 4, 8, mv, rpic, weight);
+ },
+ SubMBType::P4x4 => {
+ for sb_no in 0..4 {
+ let sxpos = xpos + bx + (sb_no & 1) * 4;
+ let sypos = ypos + by + (sb_no & 2) * 2;
+ let sblk_no = (bx / 4 + (sb_no & 1)) + ((by / 4) + (sb_no >> 1)) * 4;
+ let mv = sstate.get_cur_blk4(sblk_no).mv[0];
+ do_p_mc(frm, sxpos, sypos, 4, 4, mv, rpic.clone(), weight);
+ }
+ },
+ _ => unreachable!(),
+ };
+ }
+ },
+ MBType::B16x16(mode) => {
+ let mv0 = sstate.get_cur_blk4(0).mv[0];
+ let rpic0 = frame_refs.select_ref_pic(0, mb_info.ref_l0[0].index());
+ let mv1 = sstate.get_cur_blk4(0).mv[1];
+ let rpic1 = frame_refs.select_ref_pic(1, mb_info.ref_l1[0].index());
+ let (weight0, weight1) = get_weights(slice_hdr, frame_refs, mode, weight_mode, mb_info.ref_l0[0], mb_info.ref_l1[0]);
+ do_b_mc(frm, mode, xpos, ypos, 16, 16, mv0, rpic0, &weight0, mv1, rpic1, &weight1, avg_buf);
+ },
+ MBType::B16x8(mode0, mode1) | MBType::B8x16(mode0, mode1) => {
+ let (pw, ph) = mb_info.mb_type.size();
+ let (px, py) = (pw & 8, ph & 8);
+ let modes = [mode0, mode1];
+ let (mut bx, mut by) = (0, 0);
+ for part in 0..2 {
+ let blk = if part == 0 { 0 } else { (px / 4) + py };
+ let mv0 = sstate.get_cur_blk4(blk).mv[0];
+ let rpic0 = frame_refs.select_ref_pic(0, mb_info.ref_l0[part].index());
+ let mv1 = sstate.get_cur_blk4(blk).mv[1];
+ let rpic1 = frame_refs.select_ref_pic(1, mb_info.ref_l1[part].index());
+ let (weight0, weight1) = get_weights(slice_hdr, frame_refs, modes[part], weight_mode, mb_info.ref_l0[part], mb_info.ref_l1[part]);
+ do_b_mc(frm, modes[part], xpos + bx, ypos + by, pw, ph, mv0, rpic0, &weight0, mv1, rpic1, &weight1, avg_buf);
+ bx += px;
+ by += py;
+ }
+ },
+ MBType::Direct | MBType::BSkip => {
+ let colo_mb_type = frame_refs.get_colocated_info(sstate.mb_x, sstate.mb_y).0.mb_type;
+ let is_16x16 = colo_mb_type.is_16x16_ref();
+
+ if is_16x16 {
+ let mv = sstate.get_cur_blk4(0).mv;
+ let ref_idx = sstate.get_cur_blk8(0).ref_idx;
+ let rpic0 = frame_refs.select_ref_pic(0, ref_idx[0].index());
+ let rpic1 = frame_refs.select_ref_pic(1, ref_idx[1].index());
+ let (weight0, weight1) = get_weights(slice_hdr, frame_refs, BMode::Bi, weight_mode, ref_idx[0], ref_idx[1]);
+ do_b_mc(frm, BMode::Bi, xpos, ypos, 16, 16, mv[0], rpic0, &weight0, mv[1], rpic1, &weight1, avg_buf);
+ } else {
+ for blk4 in 0..16 {
+ let mv = sstate.get_cur_blk4(blk4).mv;
+ let ref_idx = sstate.get_cur_blk8(blk4_to_blk8(blk4)).ref_idx;
+ let rpic0 = frame_refs.select_ref_pic(0, ref_idx[0].index());
+ let rpic1 = frame_refs.select_ref_pic(1, ref_idx[1].index());
+ let (weight0, weight1) = get_weights(slice_hdr, frame_refs, BMode::Bi, weight_mode, ref_idx[0], ref_idx[1]);
+ do_b_mc(frm, BMode::Bi, xpos + (blk4 & 3) * 4, ypos + (blk4 >> 2) * 4, 4, 4, mv[0], rpic0, &weight0, mv[1], rpic1, &weight1, avg_buf);
+ }
+ }
+ sstate.apply_to_blk8(|blk8| { blk8.ref_idx[0].set_direct(); blk8.ref_idx[1].set_direct(); });
+ },
+ MBType::B8x8 => {
+ for part in 0..4 {
+ let ridx = sstate.get_cur_blk8(part).ref_idx;
+ let rpic0 = frame_refs.select_ref_pic(0, ridx[0].index());
+ let rpic1 = frame_refs.select_ref_pic(1, ridx[1].index());
+ let subtype = mb_info.sub_mb_type[part];
+ let blk8 = (part & 1) * 2 + (part & 2) * 4;
+ let mut bx = (part & 1) * 8;
+ let mut by = (part & 2) * 4;
+ match subtype {
+ SubMBType::Direct8x8 => {
+ for blk in 0..4 {
+ let mv = sstate.get_cur_blk4(bx / 4 + (by / 4) * 4).mv;
+ let ref_idx = sstate.get_cur_blk8(bx / 8 + (by / 8) * 2).ref_idx;
+ let rpic0 = frame_refs.select_ref_pic(0, ref_idx[0].index());
+ let rpic1 = frame_refs.select_ref_pic(1, ref_idx[1].index());
+ let (weight0, weight1) = get_weights(slice_hdr, frame_refs, BMode::Bi, weight_mode, ref_idx[0], ref_idx[1]);
+ do_b_mc(frm, BMode::Bi, xpos + bx, ypos + by, 4, 4, mv[0], rpic0, &weight0, mv[1], rpic1, &weight1, avg_buf);
+ bx += 4;
+ if blk == 1 {
+ bx -= 8;
+ by += 4;
+ }
+ }
+ sstate.get_cur_blk8(part).ref_idx[0].set_direct();
+ sstate.get_cur_blk8(part).ref_idx[1].set_direct();
+ },
+ SubMBType::B8x8(mode) => {
+ let mv = sstate.get_cur_blk4(blk8).mv;
+ let (weight0, weight1) = get_weights(slice_hdr, frame_refs, mode, weight_mode, ridx[0], ridx[1]);
+ do_b_mc(frm, mode, xpos + bx, ypos + by, 8, 8, mv[0], rpic0, &weight0, mv[1], rpic1, &weight1, avg_buf);
+ },
+ SubMBType::B8x4(mode) | SubMBType::B4x8(mode) => {
+ let (weight0, weight1) = get_weights(slice_hdr, frame_refs, mode, weight_mode, ridx[0], ridx[1]);
+ let (pw, ph) = subtype.size();
+ let mv = sstate.get_cur_blk4(blk8).mv;
+ do_b_mc(frm, mode, xpos + bx, ypos + by, pw, ph, mv[0], rpic0.clone(), &weight0, mv[1], rpic1.clone(), &weight1, avg_buf);
+ let addr2 = blk8 + (pw & 4) / 4 + (ph & 4);
+ let mv = sstate.get_cur_blk4(addr2).mv;
+ do_b_mc(frm, mode, xpos + bx + (pw & 4), ypos + by + (ph & 4), pw, ph, mv[0], rpic0, &weight0, mv[1], rpic1, &weight1, avg_buf);
+ },
+ SubMBType::B4x4(mode) => {
+ let (weight0, weight1) = get_weights(slice_hdr, frame_refs, mode, weight_mode, ridx[0], ridx[1]);
+ for i in 0..4 {
+ let addr2 = blk8 + (i & 1) + (i & 2) * 2;
+ let mv = sstate.get_cur_blk4(addr2).mv;
+ do_b_mc(frm, mode, xpos + bx, ypos + by, 4, 4, mv[0], rpic0.clone(), &weight0, mv[1], rpic1.clone(), &weight1, avg_buf);
+ bx += 4;
+ if i == 1 {
+ bx -= 8;
+ by += 4;
+ }
+ }
+ },
+ _ => unreachable!(),
+ };
+ }
+ },
+ };
+ if !mb_info.mb_type.is_skip() {
+ if mb_info.mb_type != MBType::Intra4x4 && mb_info.mb_type != MBType::Intra8x8 {
+ add_luma(frm, &sstate, &mb_info);
+ }
+ add_chroma(frm, &sstate, &mb_info);
+ }
+}
projects / nihav.git / blobdiff