-use std::mem;
+//use std::mem;
use frame::*;
use super::super::*;
use super::super::blockdsp;
self.mb_start = mb_start;
self.mb_w = mb_w;
self.mb_stride = mb_w * 2;
- self.top = true;
self.mv.resize(self.mb_stride * 3, ZERO_MV);
self.mvmode = mvmode;
}
}
}
#[allow(non_snake_case)]
- fn predict(&mut self, mb_x: usize, blk_no: usize, use4: bool, diff: MV) -> MV {
+ 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;
match blk_no {
0 => {
if mb_x != self.mb_start {
- A = if mb_x != 0 { self.mv[self.mb_stride + mb_x * 2 - 1] } else { ZERO_MV };
- B = if !self.top { self.mv[ mb_x * 2] } else { A };
- C = if !self.top && !last { self.mv[mb_x * 2 + 2] } else { ZERO_MV };
+ 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 !self.top { self.mv[mb_x * 2 + 1] } else { A };
- C = if !self.top && !last { self.mv[mb_x * 2 + 2] } else { A };
+ B = if !first_line { self.mv[mb_x * 2 + 1] } else { A };
+ C = if !first_line && !last { self.mv[mb_x * 2 + 2] } else { A };
},
2 => {
A = if mb_x != self.mb_start { self.mv[self.mb_stride * 2 + mb_x * 2 - 1] } else { ZERO_MV };
mb_h: usize,
num_mb: usize,
ftype: Type,
- prev_frm: Option<NAVideoBuffer<u8>>,
- cur_frm: Option<NAVideoBuffer<u8>>,
- last_ts: u8,
+ ipbs: IPBShuffler,
+ next_ts: u16,
+ last_ts: u16,
+ tsdiff: u16,
has_b: bool,
b_data: Vec<BMB>,
pred_coeffs: Vec<PredCoeffs>,
is_gob: bool,
+ may_have_b_frames: bool,
+ mv_data: Vec<BlockMVInfo>,
}
#[inline]
#[allow(dead_code)]
impl H263BaseDecoder {
- pub fn new(is_gob: bool) -> Self {
+ pub fn new_with_opts(is_gob: bool, may_have_b_frames: bool) -> Self {
H263BaseDecoder{
w: 0, h: 0, mb_w: 0, mb_h: 0, num_mb: 0,
ftype: Type::Special,
- prev_frm: None, cur_frm: None,
- last_ts: 0,
+ ipbs: IPBShuffler::new(),
+ last_ts: 0, next_ts: 0, tsdiff: 0,
has_b: false, b_data: Vec::new(),
pred_coeffs: Vec::new(),
is_gob: is_gob,
+ may_have_b_frames: may_have_b_frames,
+ mv_data: Vec::new(),
}
}
+ pub fn new(is_gob: bool) -> Self {
+ Self::new_with_opts(is_gob, false)
+ }
+ pub fn new_b_frames(is_gob: bool) -> Self {
+ Self::new_with_opts(is_gob, true)
+ }
pub fn is_intra(&self) -> bool { self.ftype == Type::I }
pub fn get_frame_type(&self) -> FrameType {
self.has_b = pinfo.is_pb();
if self.has_b {
- self.b_data.truncate(0);
+ self.mv_data.truncate(0);
}
- mem::swap(&mut self.cur_frm, &mut self.prev_frm);
+ let save_b_data = pinfo.mode.is_ref() && self.may_have_b_frames;
+ if save_b_data {
+ self.mv_data.truncate(0);
+ }
- let tsdiff = pinfo.ts.wrapping_sub(self.last_ts);
- let bsdiff = if pinfo.is_pb() { pinfo.get_pbinfo().get_trb() } else { 0 };
+ let tsdiff = pinfo.ts.wrapping_sub(self.last_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);
if !self.is_gob {
mvi.reset(self.mb_w, mb_x, pinfo.get_mvmode());
cbpi.reset(self.mb_w);
- sstate.first_line = true;
- sstate.first_mb = true;
+ sstate.reset_slice(mb_x, mb_y);
}
}
cbpi.set_cbp(mb_x, cbp);
cbpi.set_q(mb_x, 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) {
mvi.set_zero_mv(mb_x);
} 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));
- if let Some(ref srcbuf) = self.prev_frm {
+ 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);
}
} else {
+ let mut mv: [MV; 4] = [ZERO_MV, ZERO_MV, ZERO_MV, ZERO_MV];
for blk_no in 0..4 {
- let mv = mvi.predict(mb_x, blk_no, true, binfo.get_mv(blk_no));
- if let Some(ref srcbuf) = self.prev_frm {
+ 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);
+ mb_y * 16 + (blk_no & 2) * 4, 8, 8, mv[blk_no]);
}
}
+ 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])?;
}
blockdsp::add_blocks(&mut buf, mb_x, mb_y, &blk);
} else if binfo.mode != Type::B {
+ self.mv_data.push(BlockMVInfo::Inter_1MV(ZERO_MV));
mvi.set_zero_mv(mb_x);
- if let Some(ref srcbuf) = self.prev_frm {
+ 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 {
-//todo
+ 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;
+ let is_direct = has_fwd && has_bwd;
+//todo refactor
+ if let BlockMVInfo::Inter_4MV(mvs) = ref_mv_info {
+ for blk_no in 0..4 {
+ let ref_mv = mvs[blk_no];
+ let mut ref_mv_fwd = ref_mv.scale(bsdiff, tsdiff);
+ let mut 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 has_fwd { ref_mv_fwd = MV::add_umv(ref_mv_fwd, binfo.get_mv(0), pinfo.get_mvmode()); }
+ if has_bwd { ref_mv_bwd = MV::add_umv(ref_mv_bwd, binfo.get_mv2(0), pinfo.get_mvmode()); }
+ if let (Some(ref bck_buf), Some(ref fwd_buf)) = (self.ipbs.get_nextref(), self.ipbs.get_lastref()) {
+ if is_direct || (!has_fwd && !has_bwd) {
+ 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 if has_fwd {
+ bdsp.copy_blocks(&mut buf, fwd_buf, xoff, yoff, 8, 8, ref_mv_fwd);
+ } else {
+ bdsp.copy_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 mut ref_mv_fwd = ref_mv.scale(bsdiff, tsdiff);
+ let mut ref_mv_bwd = ref_mv - ref_mv_fwd;
+ if has_fwd { ref_mv_fwd = MV::add_umv(ref_mv_fwd, binfo.get_mv(0), pinfo.get_mvmode()); }
+ if has_bwd { ref_mv_bwd = MV::add_umv(ref_mv_bwd, binfo.get_mv2(0), pinfo.get_mvmode()); }
+ if let (Some(ref bck_buf), Some(ref fwd_buf)) = (self.ipbs.get_nextref(), self.ipbs.get_lastref()) {
+ if is_direct || (!has_fwd && !has_bwd) {
+ 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);
+ } else if has_fwd {
+ bdsp.copy_blocks(&mut buf, fwd_buf, mb_x * 16, mb_y * 16, 16, 16, ref_mv_fwd);
+ } else {
+ bdsp.copy_blocks(&mut buf, bck_buf, mb_x * 16, mb_y * 16, 16, 16, ref_mv_bwd);
+ }
+ }
+ }
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])?;
h263_idct(&mut blk[i]);
}
+ blockdsp::add_blocks(&mut buf, mb_x, mb_y, &blk);
}
- blockdsp::add_blocks(&mut buf, mb_x, mb_y, &blk);
}
if pinfo.is_pb() {
let mut b_mb = BMB::new();
cbpi.update_row();
sstate.new_row();
}
-
- self.cur_frm = Some(buf);
- self.last_ts = pinfo.ts;
+
+ 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 get_bframe(&mut self, bdsp: &BlockDSP) -> DecoderResult<NABufferType> {
- if !self.has_b || !self.cur_frm.is_some() || !self.prev_frm.is_some() {
+ if !self.has_b || !self.ipbs.get_lastref().is_some() || !self.ipbs.get_nextref().is_some() {
return Err(DecoderError::MissingReference);
}
self.has_b = false;
let mut bufinfo = bufret.unwrap();
let mut b_buf = bufinfo.get_vbuf().unwrap();
- if let Some(ref bck_buf) = self.prev_frm {
- if let Some(ref fwd_buf) = self.cur_frm {
- recon_b_frame(&mut b_buf, bck_buf, fwd_buf, self.mb_w, self.mb_h, &self.b_data, bdsp);
- }
+ if let (Some(ref bck_buf), Some(ref fwd_buf)) = (self.ipbs.get_nextref(), self.ipbs.get_lastref()) {
+ recon_b_frame(&mut b_buf, bck_buf, fwd_buf, self.mb_w, self.mb_h, &self.b_data, bdsp);
}
self.b_data.truncate(0);
projects / nihav.git / blobdiff