+++ /dev/null
-//use std::mem;
-use crate::frame::*;
-use super::super::*;
-use super::super::blockdsp;
-use super::*;
-//use super::code::*;
-use crate::formats;
-
-#[allow(dead_code)]
-struct MVInfo {
- mv: Vec<MV>,
- mb_w: usize,
- mb_stride: usize,
- mb_start: usize,
- top: bool,
- mvmode: MVMode,
-}
-
-impl MVInfo {
- fn new() -> Self { MVInfo{ mv: Vec::new(), mb_w: 0, mb_stride: 0, mb_start: 0, top: true, mvmode: MVMode::Old } }
- fn reset(&mut self, mb_w: usize, mb_start: usize, mvmode: MVMode) {
- self.mb_start = mb_start;
- self.mb_w = mb_w;
- self.mb_stride = mb_w * 2;
- self.mv.resize(self.mb_stride * 3, ZERO_MV);
- self.mvmode = mvmode;
- }
- fn update_row(&mut self) {
- self.mb_start = self.mb_w + 1;
- self.top = false;
- for i in 0..self.mb_stride {
- self.mv[i] = self.mv[self.mb_stride * 2 + i];
- }
- }
- #[allow(non_snake_case)]
- fn predict(&mut self, mb_x: usize, blk_no: usize, use4: bool, diff: MV, first_line: bool, first_mb: bool) -> MV {
- let A;
- let B;
- let C;
- let last = mb_x == self.mb_w - 1;
- match blk_no {
- 0 => {
- if mb_x != self.mb_start {
- A = if !first_mb { self.mv[self.mb_stride + mb_x * 2 - 1] } else { ZERO_MV };
- B = if !first_line { self.mv[ mb_x * 2] } else { A };
- C = if !first_line && !last { self.mv[mb_x * 2 + 2] } else { ZERO_MV };
- } else {
- A = ZERO_MV; B = ZERO_MV; C = ZERO_MV;
- }
- },
- 1 => {
- A = self.mv[self.mb_stride + mb_x * 2];
- B = if !first_line { self.mv[mb_x * 2 + 1] } else { A };
- C = if !first_line && !last { self.mv[mb_x * 2 + 2] } else { ZERO_MV/*A*/ };
- },
- 2 => {
- A = if mb_x != self.mb_start { self.mv[self.mb_stride * 2 + mb_x * 2 - 1] } else { ZERO_MV };
- B = self.mv[self.mb_stride + mb_x * 2];
- C = self.mv[self.mb_stride + mb_x * 2 + 1];
- },
- 3 => {
- A = self.mv[self.mb_stride * 2 + mb_x * 2];
- B = self.mv[self.mb_stride * 1 + mb_x * 2 + 1];
- C = self.mv[self.mb_stride * 1 + mb_x * 2];
- },
- _ => { return ZERO_MV; }
- }
- let pred_mv = MV::pred(A, B, C);
- let new_mv = MV::add_umv(pred_mv, diff, self.mvmode);
- if !use4 {
- self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = new_mv;
- self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = new_mv;
- self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = new_mv;
- self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = new_mv;
- } else {
- match blk_no {
- 0 => { self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = new_mv; },
- 1 => { self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = new_mv; },
- 2 => { self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = new_mv; },
- 3 => { self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = new_mv; },
- _ => {},
- };
- }
-
- new_mv
- }
- fn set_zero_mv(&mut self, mb_x: usize) {
- self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = ZERO_MV;
- self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = ZERO_MV;
- self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = ZERO_MV;
- self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = ZERO_MV;
- }
- fn get_mv(&self, mb_x: usize, blk_no: usize) -> MV {
- self.mv[self.mb_stride + mb_x * 2 + (blk_no & 1) + (blk_no >> 1) * self.mb_stride]
- }
-}
-
-#[allow(dead_code)]
-#[derive(Clone,Copy)]
-struct BMB {
- num_mv: usize,
- mv_f: [MV; 4],
- mv_b: [MV; 4],
- fwd: bool,
- blk: [[i16; 64]; 6],
- cbp: u8,
-}
-
-impl BMB {
- fn new() -> Self { BMB {blk: [[0; 64]; 6], cbp: 0, fwd: false, mv_f: [ZERO_MV; 4], mv_b: [ZERO_MV; 4], num_mv: 0} }
-}
-
-#[derive(Clone,Copy)]
-struct PredCoeffs {
- hor: [[i16; 8]; 6],
- ver: [[i16; 8]; 6],
-}
-
-const ZERO_PRED_COEFFS: PredCoeffs = PredCoeffs { hor: [[0; 8]; 6], ver: [[0; 8]; 6] };
-
-pub struct H263BaseDecoder {
- w: usize,
- h: usize,
- mb_w: usize,
- mb_h: usize,
- num_mb: usize,
- ftype: Type,
- ipbs: IPBShuffler,
- next_ts: u16,
- last_ts: u16,
- tsdiff: u16,
- has_b: bool,
- b_data: Vec<BMB>,
- pred_coeffs: Vec<PredCoeffs>,
- is_gob: bool,
- slice_reset: bool,
- may_have_b_frames: bool,
- mv_data: Vec<BlockMVInfo>,
-}
-
-#[inline]
-fn clip_dc(dc: i16) -> i16 {
- if dc < 0 { 0 }
- else if dc > 2046 { 2046 }
- else { (dc + 1) & !1 }
-}
-
-#[inline]
-fn clip_ac(ac: i16) -> i16 {
- if ac < -2048 { -2048 }
- else if ac > 2047 { 2047 }
- else { ac }
-}
-
-#[allow(dead_code)]
-impl H263BaseDecoder {
- pub fn new_with_opts(is_gob: bool, slice_reset: bool, may_have_b_frames: bool) -> Self {
- H263BaseDecoder{
- w: 0, h: 0, mb_w: 0, mb_h: 0, num_mb: 0,
- ftype: Type::Special,
- ipbs: IPBShuffler::new(),
- last_ts: 0, next_ts: 0, tsdiff: 0,
- has_b: false, b_data: Vec::new(),
- pred_coeffs: Vec::new(),
- is_gob, slice_reset,
- may_have_b_frames,
- mv_data: Vec::new(),
- }
- }
- pub fn new(is_gob: bool) -> Self {
- Self::new_with_opts(is_gob, true, false)
- }
- pub fn new_b_frames(is_gob: bool) -> Self {
- Self::new_with_opts(is_gob, true, true)
- }
-
- pub fn is_intra(&self) -> bool { self.ftype == Type::I }
- pub fn get_frame_type(&self) -> FrameType {
- match self.ftype {
- Type::I => FrameType::I,
- Type::P => FrameType::P,
- Type::B => FrameType::B,
- Type::PB => FrameType::P,
- Type::Skip => FrameType::Skip,
- Type::Special => FrameType::Skip,
- }
- }
- pub fn get_dimensions(&self) -> (usize, usize) { (self.w, self.h) }
-
- pub fn parse_frame(&mut self, bd: &mut BlockDecoder, bdsp: &BlockDSP) -> DecoderResult<NABufferType> {
- let pinfo = bd.decode_pichdr()?;
- let mut mvi = MVInfo::new();
- let mut mvi2 = MVInfo::new();
- let mut cbpi = CBPInfo::new();
-
-//todo handle res change
- self.w = pinfo.w;
- self.h = pinfo.h;
- self.mb_w = (pinfo.w + 15) >> 4;
- self.mb_h = (pinfo.h + 15) >> 4;
- self.num_mb = self.mb_w * self.mb_h;
- self.ftype = pinfo.mode;
- self.has_b = pinfo.is_pb();
-
- if self.has_b {
- self.mv_data.truncate(0);
- }
-
- let save_b_data = pinfo.mode.is_ref() && self.may_have_b_frames;
- if save_b_data {
- self.mv_data.truncate(0);
- }
- let is_b = pinfo.mode == Type::B;
-
- let tsdiff = if pinfo.is_pb() { pinfo.ts.wrapping_sub(self.last_ts) >> 1 }
- else { self.last_ts.wrapping_sub(self.next_ts) >> 1 };
- let bsdiff = if pinfo.is_pb() { (pinfo.get_pbinfo().get_trb() as u16) << 7 }
- else { pinfo.ts.wrapping_sub(self.next_ts) >> 1 };
-
- let fmt = formats::YUV420_FORMAT;
- let vinfo = NAVideoInfo::new(self.w, self.h, false, fmt);
- let bufinfo = alloc_video_buffer(vinfo, 4)?;
- let mut buf = bufinfo.get_vbuf().unwrap();
-
- let mut slice = if self.is_gob {
- SliceInfo::get_default_slice(&pinfo)
- } else {
- bd.decode_slice_header(&pinfo)?
- };
- mvi.reset(self.mb_w, 0, pinfo.get_mvmode());
- if is_b || pinfo.is_pb() {
- mvi2.reset(self.mb_w, 0, pinfo.get_mvmode());
- }
- cbpi.reset(self.mb_w);
-
- let mut blk: [[i16; 64]; 6] = [[0; 64]; 6];
- let mut sstate = SliceState::new(pinfo.mode == Type::I);
- let mut mb_pos = 0;
- let apply_acpred = (pinfo.mode == Type::I) && pinfo.plusinfo.is_some() && pinfo.plusinfo.unwrap().aic;
- if apply_acpred {
- self.pred_coeffs.truncate(0);
- self.pred_coeffs.resize(self.mb_w * self.mb_h, ZERO_PRED_COEFFS);
- }
- sstate.quant = slice.quant;
- for mb_y in 0..self.mb_h {
- for mb_x in 0..self.mb_w {
- for i in 0..6 { for j in 0..64 { blk[i][j] = 0; } }
-
- if slice.is_at_end(mb_pos) || (slice.needs_check() && mb_pos > 0 && bd.is_slice_end()) {
- slice = bd.decode_slice_header(&pinfo)?;
- if !self.is_gob && self.slice_reset {
- mvi.reset(self.mb_w, mb_x, pinfo.get_mvmode());
- if is_b || pinfo.is_pb() {
- mvi2.reset(self.mb_w, mb_x, pinfo.get_mvmode());
- }
- cbpi.reset(self.mb_w);
- sstate.reset_slice(mb_x, mb_y);
- sstate.quant = slice.quant;
- }
- }
-
- let binfo = bd.decode_block_header(&pinfo, &slice, &sstate)?;
- let cbp = binfo.get_cbp();
- cbpi.set_cbp(mb_x, cbp);
- cbpi.set_q(mb_x, binfo.get_q());
- sstate.quant = binfo.get_q();
- if binfo.is_intra() {
- if save_b_data {
- self.mv_data.push(BlockMVInfo::Intra);
- }
- for i in 0..6 {
- bd.decode_block_intra(&binfo, &sstate, binfo.get_q(), i, (cbp & (1 << (5 - i))) != 0, &mut blk[i])?;
- if apply_acpred && (binfo.acpred != ACPredMode::None) {
- let has_b = (i == 1) || (i == 3) || !sstate.first_mb;
- let has_a = (i == 2) || (i == 3) || !sstate.first_line;
- let (b_mb, b_blk) = if has_b {
- if (i == 1) || (i == 3) {
- (mb_pos, i - 1)
- } else if i < 4 {
- (mb_pos - 1, i + 1)
- } else {
- (mb_pos - 1, i)
- }
- } else { (0, 0) };
- let (a_mb, a_blk) = if has_a {
- if (i == 2) || (i == 3) {
- (mb_pos, i - 2)
- } else if i < 4 {
- (mb_pos - self.mb_w, i + 2)
- } else {
- (mb_pos - self.mb_w, i)
- }
- } else { (0, 0) };
- match binfo.acpred {
- ACPredMode::DC => {
- let dc;
- if has_a && has_b {
- dc = (self.pred_coeffs[b_mb].hor[b_blk][0] + self.pred_coeffs[a_mb].ver[a_blk][0]) / 2;
- } else if has_a {
- dc = self.pred_coeffs[a_mb].ver[a_blk][0];
- } else if has_b {
- dc = self.pred_coeffs[b_mb].hor[b_blk][0];
- } else {
- dc = 1024;
- }
- blk[i][0] = clip_dc(blk[i][0] + dc);
- },
- ACPredMode::Hor => {
- if has_b {
- for k in 0..8 {
- blk[i][k * 8] += self.pred_coeffs[b_mb].hor[b_blk][k];
- }
- for k in 1..8 {
- blk[i][k * 8] = clip_ac(blk[i][k * 8]);
- }
- } else {
- blk[i][0] += 1024;
- }
- blk[i][0] = clip_dc(blk[i][0]);
- },
- ACPredMode::Ver => {
- if has_a {
- for k in 0..8 {
- blk[i][k] += self.pred_coeffs[a_mb].ver[a_blk][k];
- }
- for k in 1..8 {
- blk[i][k] = clip_ac(blk[i][k]);
- }
- } else {
- blk[i][0] += 1024;
- }
- blk[i][0] = clip_dc(blk[i][0]);
- },
- ACPredMode::None => {},
- };
- for t in 0..8 { self.pred_coeffs[mb_pos].hor[i][t] = blk[i][t * 8]; }
- for t in 0..8 { self.pred_coeffs[mb_pos].ver[i][t] = blk[i][t]; }
- }
- bdsp.idct(&mut blk[i]);
- }
- blockdsp::put_blocks(&mut buf, mb_x, mb_y, &blk);
- mvi.set_zero_mv(mb_x);
- if is_b {
- mvi2.set_zero_mv(mb_x);
- } else if pinfo.is_pb() {
- mvi2.predict(mb_x, 0, false, binfo.get_mv2(0), sstate.first_line, sstate.first_mb);
- }
- } else if (binfo.mode != Type::B) && !binfo.is_skipped() {
- if binfo.get_num_mvs() == 1 {
- let mv = mvi.predict(mb_x, 0, false, binfo.get_mv(0), sstate.first_line, sstate.first_mb);
- if save_b_data {
- self.mv_data.push(BlockMVInfo::Inter_1MV(mv));
- }
- if let Some(ref srcbuf) = self.ipbs.get_lastref() {
- bdsp.copy_blocks(&mut buf, srcbuf, mb_x * 16, mb_y * 16, 16, 16, mv);
- }
- if pinfo.is_pb() {
- mvi2.predict(mb_x, 0, false, binfo.get_mv(0), sstate.first_line, sstate.first_mb);
- }
- } else {
- let mut mv: [MV; 4] = [ZERO_MV, ZERO_MV, ZERO_MV, ZERO_MV];
- for blk_no in 0..4 {
- mv[blk_no] = mvi.predict(mb_x, blk_no, true, binfo.get_mv(blk_no), sstate.first_line, sstate.first_mb);
- if let Some(ref srcbuf) = self.ipbs.get_lastref() {
- bdsp.copy_blocks(&mut buf, srcbuf,
- mb_x * 16 + (blk_no & 1) * 8,
- mb_y * 16 + (blk_no & 2) * 4, 8, 8, mv[blk_no]);
- }
- }
- if pinfo.is_pb() {
- for blk_no in 0..4 {
- mvi2.predict(mb_x, blk_no, true, binfo.get_mv(blk_no), sstate.first_line, sstate.first_mb);
- }
- }
- if save_b_data {
- self.mv_data.push(BlockMVInfo::Inter_4MV(mv));
- }
- }
- for i in 0..6 {
- bd.decode_block_inter(&binfo, &sstate, binfo.get_q(), i, ((cbp >> (5 - i)) & 1) != 0, &mut blk[i])?;
- bdsp.idct(&mut blk[i]);
- }
- blockdsp::add_blocks(&mut buf, mb_x, mb_y, &blk);
- if is_b && !pinfo.is_pb() {
- mvi2.set_zero_mv(mb_x);
- }
- } else if binfo.mode != Type::B {
- self.mv_data.push(BlockMVInfo::Inter_1MV(ZERO_MV));
- mvi.set_zero_mv(mb_x);
- if is_b || pinfo.is_pb() {
- mvi2.set_zero_mv(mb_x);
- }
- if let Some(ref srcbuf) = self.ipbs.get_lastref() {
- bdsp.copy_blocks(&mut buf, srcbuf, mb_x * 16, mb_y * 16, 16, 16, ZERO_MV);
- }
- } else {
- let ref_mv_info = self.mv_data[mb_pos];
- let has_fwd = binfo.get_num_mvs() > 0;
- let has_bwd = binfo.get_num_mvs2() > 0;
-//todo refactor
- if has_fwd || has_bwd {
- let fwd_mv;
- if has_fwd {
- fwd_mv = mvi.predict(mb_x, 0, false, binfo.get_mv(0), sstate.first_line, sstate.first_mb);
- } else {
- fwd_mv = ZERO_MV;
- mvi.set_zero_mv(mb_x);
- }
- let bwd_mv;
- if has_bwd {
- bwd_mv = mvi2.predict(mb_x, 0, false, binfo.get_mv2(0), sstate.first_line, sstate.first_mb);
- } else {
- bwd_mv = ZERO_MV;
- mvi2.set_zero_mv(mb_x);
- }
- if let (Some(ref fwd_buf), Some(ref bck_buf)) = (self.ipbs.get_nextref(), self.ipbs.get_lastref()) {
- if has_fwd && has_bwd {
- bdsp.copy_blocks(&mut buf, fwd_buf, mb_x * 16, mb_y * 16, 16, 16, fwd_mv);
- bdsp.avg_blocks (&mut buf, bck_buf, mb_x * 16, mb_y * 16, 16, 16, bwd_mv);
- } else if has_fwd {
- bdsp.copy_blocks(&mut buf, fwd_buf, mb_x * 16, mb_y * 16, 16, 16, fwd_mv);
- } else {
- bdsp.copy_blocks(&mut buf, bck_buf, mb_x * 16, mb_y * 16, 16, 16, bwd_mv);
- }
- }
- } else {
- if let BlockMVInfo::Inter_4MV(mvs) = ref_mv_info {
- for blk_no in 0..4 {
- let ref_mv = mvs[blk_no];
- let ref_mv_fwd = ref_mv.scale(bsdiff, tsdiff);
- let ref_mv_bwd = ref_mv - ref_mv_fwd;
- let xoff = mb_x * 16 + (blk_no & 1) * 8;
- let yoff = mb_y * 16 + (blk_no & 2) * 4;
- if let (Some(ref fwd_buf), Some(ref bck_buf)) = (self.ipbs.get_nextref(), self.ipbs.get_lastref()) {
- bdsp.copy_blocks(&mut buf, fwd_buf, xoff, yoff, 8, 8, ref_mv_fwd);
- bdsp.avg_blocks (&mut buf, bck_buf, xoff, yoff, 8, 8, ref_mv_bwd);
- }
- }
- } else {
- let ref_mv = if let BlockMVInfo::Inter_1MV(mv_) = ref_mv_info { mv_ } else { ZERO_MV };
- let ref_mv_fwd = ref_mv.scale(bsdiff, tsdiff);
- let ref_mv_bwd = MV::b_sub(ref_mv, ref_mv_fwd, ZERO_MV, bsdiff, tsdiff);
-
- if let (Some(ref fwd_buf), Some(ref bck_buf)) = (self.ipbs.get_nextref(), self.ipbs.get_lastref()) {
- bdsp.copy_blocks(&mut buf, fwd_buf, mb_x * 16, mb_y * 16, 16, 16, ref_mv_fwd);
- bdsp.avg_blocks (&mut buf, bck_buf, mb_x * 16, mb_y * 16, 16, 16, ref_mv_bwd);
- }
- }
- mvi.set_zero_mv(mb_x);
- mvi2.set_zero_mv(mb_x);
- }
- if cbp != 0 {
- for i in 0..6 {
- bd.decode_block_inter(&binfo, &sstate, binfo.get_q(), i, ((cbp >> (5 - i)) & 1) != 0, &mut blk[i])?;
- bdsp.idct(&mut blk[i]);
- }
- blockdsp::add_blocks(&mut buf, mb_x, mb_y, &blk);
- }
- }
- if pinfo.is_pb() {
- let mut b_mb = BMB::new();
- let cbp = binfo.get_cbp_b();
- let bq = (((pinfo.get_pbinfo().get_dbquant() + 5) as u16) * (binfo.get_q() as u16)) >> 2;
- let bquant;
- if bq < 1 { bquant = 1; }
- else if bq > 31 { bquant = 31; }
- else { bquant = bq as u8; }
-
- b_mb.cbp = cbp;
- for i in 0..6 {
- bd.decode_block_inter(&binfo, &sstate, bquant, i, (cbp & (1 << (5 - i))) != 0, &mut b_mb.blk[i])?;
- bdsp.idct(&mut b_mb.blk[i]);
- }
-
- let is_fwd = binfo.is_b_fwd();
- b_mb.fwd = is_fwd;
- if binfo.get_num_mvs() != 4 {
- let ref_mv = mvi2.get_mv(mb_x, 0);
- let b_mv = if binfo.is_intra() { binfo.get_mv2(1) } else { binfo.get_mv2(0) };
- let src_mv = if is_fwd { ZERO_MV } else { ref_mv.scale(bsdiff, tsdiff) };
- let mv_f = MV::add_umv(src_mv, b_mv, pinfo.get_mvmode());
- let mv_b = MV::b_sub(ref_mv, mv_f, b_mv, bsdiff, tsdiff);
- b_mb.mv_f[0] = mv_f;
- b_mb.mv_b[0] = mv_b;
- b_mb.num_mv = 1;
- } else {
- for blk_no in 0..4 {
- let src_mv = if is_fwd { ZERO_MV } else { mvi2.get_mv(mb_x, blk_no).scale(bsdiff, tsdiff) };
- let mv_f = MV::add_umv(src_mv, binfo.get_mv2(0), pinfo.get_mvmode());
- let mv_b = MV::b_sub(mvi2.get_mv(mb_x, blk_no), mv_f, binfo.get_mv2(0), bsdiff, tsdiff);
- b_mb.mv_f[blk_no] = mv_f;
- b_mb.mv_b[blk_no] = mv_b;
- }
- b_mb.num_mv = 4;
- }
- self.b_data.push(b_mb);
- }
- sstate.next_mb();
- mb_pos += 1;
- }
- if let Some(plusinfo) = pinfo.plusinfo {
- if plusinfo.deblock {
- bdsp.filter_row(&mut buf, mb_y, self.mb_w, &cbpi);
- }
- }
- mvi.update_row();
- if is_b || pinfo.is_pb() {
- mvi2.update_row();
- }
- cbpi.update_row();
- sstate.new_row();
- }
-
- if pinfo.mode.is_ref() {
- self.ipbs.add_frame(buf);
- self.next_ts = self.last_ts;
- self.last_ts = pinfo.ts;
- self.tsdiff = tsdiff;
- }
-
- Ok(bufinfo)
- }
- pub fn flush(&mut self) {
- self.ipbs.clear();
- }
-
- pub fn get_bframe(&mut self, bdsp: &BlockDSP) -> DecoderResult<NABufferType> {
- if !self.has_b || self.ipbs.get_lastref().is_none() || self.ipbs.get_nextref().is_none() {
- return Err(DecoderError::MissingReference);
- }
- self.has_b = false;
-
- let fmt = formats::YUV420_FORMAT;
- let vinfo = NAVideoInfo::new(self.w, self.h, false, fmt);
- let bufinfo = alloc_video_buffer(vinfo, 4)?;
- let mut b_buf = bufinfo.get_vbuf().unwrap();
-
- if let (Some(ref bck_buf), Some(ref fwd_buf)) = (self.ipbs.get_nextref(), self.ipbs.get_lastref()) {
- recon_b_frame(&mut b_buf, fwd_buf, bck_buf, self.mb_w, self.mb_h, self.b_data.as_slice(), bdsp);
- }
-
- self.b_data.truncate(0);
- Ok(bufinfo)
- }
-}
-
-fn recon_b_frame(b_buf: &mut NAVideoBuffer<u8>, bck_buf: &NAVideoBuffer<u8>, fwd_buf: &NAVideoBuffer<u8>,
- mb_w: usize, mb_h: usize, b_data: &[BMB], bdsp: &BlockDSP) {
- let mut cbpi = CBPInfo::new();
- let mut cur_mb = 0;
- cbpi.reset(mb_w);
- for mb_y in 0..mb_h {
- for mb_x in 0..mb_w {
- let num_mv = b_data[cur_mb].num_mv;
- let is_fwd = b_data[cur_mb].fwd;
- let cbp = b_data[cur_mb].cbp;
- cbpi.set_cbp(mb_x, cbp);
- if num_mv == 1 {
- bdsp.copy_blocks(b_buf, fwd_buf, mb_x * 16, mb_y * 16, 16, 16, b_data[cur_mb].mv_b[0]);
- if !is_fwd {
- bdsp.avg_blocks(b_buf, bck_buf, mb_x * 16, mb_y * 16, 16, 16, b_data[cur_mb].mv_f[0]);
- }
- } else {
- for blk_no in 0..4 {
- let xpos = mb_x * 16 + (blk_no & 1) * 8;
- let ypos = mb_y * 16 + (blk_no & 2) * 4;
- bdsp.copy_blocks(b_buf, fwd_buf, xpos, ypos, 8, 8, b_data[cur_mb].mv_b[blk_no]);
- if !is_fwd {
- bdsp.avg_blocks(b_buf, bck_buf, xpos, ypos, 8, 8, b_data[cur_mb].mv_f[blk_no]);
- }
- }
- }
- if cbp != 0 {
- blockdsp::add_blocks(b_buf, mb_x, mb_y, &b_data[cur_mb].blk);
- }
- cur_mb += 1;
- }
- cbpi.update_row();
- }
-}
projects / nihav.git / blobdiff