Commit | Line | Data |
---|---|---|
cf64af13 | 1 | use std::mem; |
88c58b1b KS |
2 | use frame::*; |
3 | use super::super::*; | |
4 | use super::super::blockdsp; | |
cf64af13 | 5 | use super::*; |
88c58b1b | 6 | use super::code::*; |
cf64af13 KS |
7 | use formats; |
8 | ||
cf64af13 KS |
9 | #[allow(dead_code)] |
10 | struct MVInfo { | |
11 | mv: Vec<MV>, | |
12 | mb_w: usize, | |
13 | mb_stride: usize, | |
14 | mb_start: usize, | |
15 | top: bool, | |
2324f30b | 16 | mvmode: MVMode, |
cf64af13 KS |
17 | } |
18 | ||
19 | impl MVInfo { | |
2324f30b KS |
20 | fn new() -> Self { MVInfo{ mv: Vec::new(), mb_w: 0, mb_stride: 0, mb_start: 0, top: true, mvmode: MVMode::Old } } |
21 | fn reset(&mut self, mb_w: usize, mb_start: usize, mvmode: MVMode) { | |
cf64af13 KS |
22 | self.mb_start = mb_start; |
23 | self.mb_w = mb_w; | |
24 | self.mb_stride = mb_w * 2; | |
25 | self.top = true; | |
26 | self.mv.resize(self.mb_stride * 3, ZERO_MV); | |
2324f30b | 27 | self.mvmode = mvmode; |
cf64af13 KS |
28 | } |
29 | fn update_row(&mut self) { | |
30 | self.mb_start = self.mb_w + 1; | |
31 | self.top = false; | |
32 | for i in 0..self.mb_stride { | |
33 | self.mv[i] = self.mv[self.mb_stride * 2 + i]; | |
34 | } | |
35 | } | |
36 | #[allow(non_snake_case)] | |
37 | fn predict(&mut self, mb_x: usize, blk_no: usize, use4: bool, diff: MV) -> MV { | |
38 | let A; | |
39 | let B; | |
40 | let C; | |
41 | let last = mb_x == self.mb_w - 1; | |
cf64af13 KS |
42 | match blk_no { |
43 | 0 => { | |
44 | if mb_x != self.mb_start { | |
45 | A = if mb_x != 0 { self.mv[self.mb_stride + mb_x * 2 - 1] } else { ZERO_MV }; | |
46 | B = if !self.top { self.mv[ mb_x * 2] } else { A }; | |
47 | C = if !self.top && !last { self.mv[mb_x * 2 + 2] } else { ZERO_MV }; | |
48 | } else { | |
49 | A = ZERO_MV; B = ZERO_MV; C = ZERO_MV; | |
50 | } | |
51 | }, | |
52 | 1 => { | |
53 | A = self.mv[self.mb_stride + mb_x * 2]; | |
54 | B = if !self.top { self.mv[mb_x * 2 + 1] } else { A }; | |
55 | C = if !self.top && !last { self.mv[mb_x * 2 + 2] } else { A }; | |
56 | }, | |
57 | 2 => { | |
58 | A = if mb_x != self.mb_start { self.mv[self.mb_stride * 2 + mb_x * 2 - 1] } else { ZERO_MV }; | |
59 | B = self.mv[self.mb_stride + mb_x * 2]; | |
60 | C = self.mv[self.mb_stride + mb_x * 2 + 1]; | |
61 | }, | |
62 | 3 => { | |
63 | A = self.mv[self.mb_stride * 2 + mb_x * 2]; | |
64 | B = self.mv[self.mb_stride * 1 + mb_x * 2 + 1]; | |
65 | C = self.mv[self.mb_stride * 1 + mb_x * 2]; | |
66 | }, | |
67 | _ => { return ZERO_MV; } | |
68 | } | |
cf64af13 | 69 | let pred_mv = MV::pred(A, B, C); |
2324f30b | 70 | let new_mv = MV::add_umv(pred_mv, diff, self.mvmode); |
cf64af13 KS |
71 | if !use4 { |
72 | self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = new_mv; | |
73 | self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = new_mv; | |
74 | self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = new_mv; | |
75 | self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = new_mv; | |
76 | } else { | |
77 | match blk_no { | |
78 | 0 => { self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = new_mv; }, | |
79 | 1 => { self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = new_mv; }, | |
80 | 2 => { self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = new_mv; }, | |
81 | 3 => { self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = new_mv; }, | |
82 | _ => {}, | |
83 | }; | |
84 | } | |
85 | ||
86 | new_mv | |
87 | } | |
88 | fn set_zero_mv(&mut self, mb_x: usize) { | |
89 | self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = ZERO_MV; | |
90 | self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = ZERO_MV; | |
91 | self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = ZERO_MV; | |
92 | self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = ZERO_MV; | |
93 | } | |
94 | } | |
95 | ||
21c16d5f KS |
96 | #[allow(dead_code)] |
97 | #[derive(Clone,Copy)] | |
98 | struct BMB { | |
99 | num_mv: usize, | |
100 | mv_f: [MV; 4], | |
101 | mv_b: [MV; 4], | |
102 | fwd: bool, | |
103 | blk: [[i16; 64]; 6], | |
104 | cbp: u8, | |
105 | } | |
106 | ||
107 | impl BMB { | |
108 | 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} } | |
109 | } | |
110 | ||
ef3209c7 KS |
111 | #[derive(Clone,Copy)] |
112 | struct PredCoeffs { | |
113 | hor: [[i16; 8]; 6], | |
114 | ver: [[i16; 8]; 6], | |
115 | } | |
116 | ||
117 | const ZERO_PRED_COEFFS: PredCoeffs = PredCoeffs { hor: [[0; 8]; 6], ver: [[0; 8]; 6] }; | |
118 | ||
88c58b1b | 119 | pub struct H263BaseDecoder { |
cf64af13 KS |
120 | w: usize, |
121 | h: usize, | |
122 | mb_w: usize, | |
123 | mb_h: usize, | |
124 | num_mb: usize, | |
125 | ftype: Type, | |
126 | prev_frm: Option<NAVideoBuffer<u8>>, | |
127 | cur_frm: Option<NAVideoBuffer<u8>>, | |
21c16d5f KS |
128 | last_ts: u8, |
129 | has_b: bool, | |
130 | b_data: Vec<BMB>, | |
ef3209c7 | 131 | pred_coeffs: Vec<PredCoeffs>, |
42a59352 | 132 | is_gob: bool, |
ef3209c7 KS |
133 | } |
134 | ||
135 | #[inline] | |
136 | fn clip_dc(dc: i16) -> i16 { | |
137 | if dc < 0 { 0 } | |
138 | else if dc > 2046 { 2046 } | |
139 | else { (dc + 1) & !1 } | |
140 | } | |
141 | ||
142 | #[inline] | |
143 | fn clip_ac(ac: i16) -> i16 { | |
144 | if ac < -2048 { -2048 } | |
145 | else if ac > 2047 { 2047 } | |
146 | else { ac } | |
cf64af13 KS |
147 | } |
148 | ||
149 | #[allow(dead_code)] | |
88c58b1b | 150 | impl H263BaseDecoder { |
42a59352 | 151 | pub fn new(is_gob: bool) -> Self { |
88c58b1b | 152 | H263BaseDecoder{ |
cf64af13 KS |
153 | w: 0, h: 0, mb_w: 0, mb_h: 0, num_mb: 0, |
154 | ftype: Type::Special, | |
155 | prev_frm: None, cur_frm: None, | |
21c16d5f KS |
156 | last_ts: 0, |
157 | has_b: false, b_data: Vec::new(), | |
ef3209c7 | 158 | pred_coeffs: Vec::new(), |
42a59352 | 159 | is_gob: is_gob, |
cf64af13 KS |
160 | } |
161 | } | |
162 | ||
163 | pub fn is_intra(&self) -> bool { self.ftype == Type::I } | |
164 | pub fn get_dimensions(&self) -> (usize, usize) { (self.w, self.h) } | |
165 | ||
2a2aa421 | 166 | pub fn parse_frame(&mut self, bd: &mut BlockDecoder, bdsp: &BlockDSP) -> DecoderResult<NABufferType> { |
cf64af13 | 167 | let pinfo = bd.decode_pichdr()?; |
21c16d5f | 168 | let mut mvi = MVInfo::new(); |
f2f1afb2 | 169 | let mut cbpi = CBPInfo::new(); |
cf64af13 KS |
170 | |
171 | //todo handle res change | |
172 | self.w = pinfo.w; | |
173 | self.h = pinfo.h; | |
174 | self.mb_w = (pinfo.w + 15) >> 4; | |
175 | self.mb_h = (pinfo.h + 15) >> 4; | |
176 | self.num_mb = self.mb_w * self.mb_h; | |
177 | self.ftype = pinfo.mode; | |
21c16d5f KS |
178 | self.has_b = pinfo.is_pb(); |
179 | ||
180 | if self.has_b { | |
181 | self.b_data.truncate(0); | |
182 | } | |
cf64af13 KS |
183 | |
184 | mem::swap(&mut self.cur_frm, &mut self.prev_frm); | |
cf64af13 | 185 | |
21c16d5f KS |
186 | let tsdiff = pinfo.ts.wrapping_sub(self.last_ts); |
187 | let bsdiff = if pinfo.is_pb() { pinfo.get_pbinfo().get_trb() } else { 0 }; | |
188 | ||
cf64af13 KS |
189 | let fmt = formats::YUV420_FORMAT; |
190 | let vinfo = NAVideoInfo::new(self.w, self.h, false, fmt); | |
191 | let bufret = alloc_video_buffer(vinfo, 4); | |
192 | if let Err(_) = bufret { return Err(DecoderError::InvalidData); } | |
193 | let mut bufinfo = bufret.unwrap(); | |
194 | let mut buf = bufinfo.get_vbuf().unwrap(); | |
195 | ||
42a59352 | 196 | let mut slice = if self.is_gob { |
2a2aa421 KS |
197 | SliceInfo::get_default_slice(&pinfo) |
198 | } else { | |
199 | bd.decode_slice_header(&pinfo)? | |
200 | }; | |
2324f30b | 201 | mvi.reset(self.mb_w, 0, pinfo.get_mvmode()); |
f2f1afb2 | 202 | cbpi.reset(self.mb_w); |
cf64af13 KS |
203 | |
204 | let mut blk: [[i16; 64]; 6] = [[0; 64]; 6]; | |
2a2aa421 KS |
205 | let mut sstate = SliceState::new(pinfo.mode == Type::I); |
206 | let mut mb_pos = 0; | |
ef3209c7 KS |
207 | let apply_acpred = (pinfo.mode == Type::I) && pinfo.plusinfo.is_some() && pinfo.plusinfo.unwrap().aic; |
208 | if apply_acpred { | |
209 | self.pred_coeffs.truncate(0); | |
210 | self.pred_coeffs.resize(self.mb_w * self.mb_h, ZERO_PRED_COEFFS); | |
211 | } | |
cf64af13 KS |
212 | for mb_y in 0..self.mb_h { |
213 | for mb_x in 0..self.mb_w { | |
214 | for i in 0..6 { for j in 0..64 { blk[i][j] = 0; } } | |
215 | ||
2a2aa421 | 216 | if slice.is_at_end(mb_pos) || (slice.needs_check() && mb_pos > 0 && bd.is_slice_end()) { |
cf64af13 | 217 | slice = bd.decode_slice_header(&pinfo)?; |
6f21f5f4 KS |
218 | if !self.is_gob { |
219 | mvi.reset(self.mb_w, mb_x, pinfo.get_mvmode()); | |
220 | cbpi.reset(self.mb_w); | |
221 | sstate.first_line = true; | |
222 | } | |
cf64af13 KS |
223 | } |
224 | ||
2a2aa421 | 225 | let binfo = bd.decode_block_header(&pinfo, &slice, &sstate)?; |
cf64af13 | 226 | let cbp = binfo.get_cbp(); |
f2f1afb2 KS |
227 | cbpi.set_cbp(mb_x, cbp); |
228 | cbpi.set_q(mb_x, binfo.get_q()); | |
cf64af13 KS |
229 | if binfo.is_intra() { |
230 | for i in 0..6 { | |
2a2aa421 | 231 | bd.decode_block_intra(&binfo, &sstate, binfo.get_q(), i, (cbp & (1 << (5 - i))) != 0, &mut blk[i])?; |
ef3209c7 KS |
232 | if apply_acpred && (binfo.acpred != ACPredMode::None) { |
233 | let has_b = (i == 1) || (i == 3) || (mb_x > 0); | |
6f21f5f4 | 234 | let has_a = (i == 2) || (i == 3) || !sstate.first_line; |
ef3209c7 KS |
235 | let (b_mb, b_blk) = if has_b { |
236 | if (i == 1) || (i == 3) { | |
237 | (mb_pos, i - 1) | |
238 | } else if i < 4 { | |
239 | (mb_pos - 1, i + 1) | |
240 | } else { | |
241 | (mb_pos - 1, i) | |
242 | } | |
243 | } else { (0, 0) }; | |
244 | let (a_mb, a_blk) = if has_a { | |
245 | if (i == 2) || (i == 3) { | |
246 | (mb_pos, i - 2) | |
247 | } else if i < 4 { | |
248 | (mb_pos - self.mb_w, i + 2) | |
249 | } else { | |
250 | (mb_pos - self.mb_w, i) | |
251 | } | |
252 | } else { (0, 0) }; | |
253 | match binfo.acpred { | |
254 | ACPredMode::DC => { | |
255 | let dc; | |
256 | if has_a && has_b { | |
257 | dc = (self.pred_coeffs[b_mb].hor[b_blk][0] + self.pred_coeffs[a_mb].ver[a_blk][0]) / 2; | |
258 | } else if has_a { | |
259 | dc = self.pred_coeffs[a_mb].ver[a_blk][0]; | |
260 | } else if has_b { | |
261 | dc = self.pred_coeffs[b_mb].hor[b_blk][0]; | |
262 | } else { | |
263 | dc = 1024; | |
264 | } | |
265 | blk[i][0] = clip_dc(blk[i][0] + dc); | |
266 | }, | |
267 | ACPredMode::Hor => { | |
268 | if has_b { | |
269 | for k in 0..8 { | |
270 | blk[i][k * 8] += self.pred_coeffs[b_mb].hor[b_blk][k]; | |
271 | } | |
272 | for k in 1..8 { | |
273 | blk[i][k * 8] = clip_ac(blk[i][k * 8]); | |
274 | } | |
275 | } else { | |
276 | blk[i][0] += 1024; | |
277 | } | |
278 | blk[i][0] = clip_dc(blk[i][0]); | |
279 | }, | |
280 | ACPredMode::Ver => { | |
281 | if has_a { | |
282 | for k in 0..8 { | |
283 | blk[i][k] += self.pred_coeffs[a_mb].ver[a_blk][k]; | |
284 | } | |
285 | for k in 1..8 { | |
286 | blk[i][k] = clip_ac(blk[i][k]); | |
287 | } | |
288 | } else { | |
289 | blk[i][0] += 1024; | |
290 | } | |
291 | blk[i][0] = clip_dc(blk[i][0]); | |
292 | }, | |
293 | ACPredMode::None => {}, | |
294 | }; | |
295 | for t in 0..8 { self.pred_coeffs[mb_pos].hor[i][t] = blk[i][t * 8]; } | |
296 | for t in 0..8 { self.pred_coeffs[mb_pos].ver[i][t] = blk[i][t]; } | |
297 | } | |
cf64af13 KS |
298 | h263_idct(&mut blk[i]); |
299 | } | |
300 | blockdsp::put_blocks(&mut buf, mb_x, mb_y, &blk); | |
301 | mvi.set_zero_mv(mb_x); | |
302 | } else if !binfo.is_skipped() { | |
303 | if binfo.get_num_mvs() == 1 { | |
304 | let mv = mvi.predict(mb_x, 0, false, binfo.get_mv(0)); | |
cf64af13 | 305 | if let Some(ref srcbuf) = self.prev_frm { |
2a2aa421 | 306 | bdsp.copy_blocks(&mut buf, srcbuf, mb_x * 16, mb_y * 16, 16, 16, mv); |
cf64af13 KS |
307 | } |
308 | } else { | |
309 | for blk_no in 0..4 { | |
310 | let mv = mvi.predict(mb_x, blk_no, true, binfo.get_mv(blk_no)); | |
cf64af13 | 311 | if let Some(ref srcbuf) = self.prev_frm { |
2a2aa421 KS |
312 | bdsp.copy_blocks(&mut buf, srcbuf, |
313 | mb_x * 16 + (blk_no & 1) * 8, | |
314 | mb_y * 16 + (blk_no & 2) * 4, 8, 8, mv); | |
cf64af13 KS |
315 | } |
316 | } | |
cf64af13 KS |
317 | } |
318 | for i in 0..6 { | |
2a2aa421 | 319 | bd.decode_block_inter(&binfo, &sstate, binfo.get_q(), i, ((cbp >> (5 - i)) & 1) != 0, &mut blk[i])?; |
cf64af13 KS |
320 | h263_idct(&mut blk[i]); |
321 | } | |
322 | blockdsp::add_blocks(&mut buf, mb_x, mb_y, &blk); | |
323 | } else { | |
324 | mvi.set_zero_mv(mb_x); | |
325 | if let Some(ref srcbuf) = self.prev_frm { | |
2a2aa421 | 326 | bdsp.copy_blocks(&mut buf, srcbuf, mb_x * 16, mb_y * 16, 16, 16, ZERO_MV); |
cf64af13 KS |
327 | } |
328 | } | |
21c16d5f KS |
329 | if pinfo.is_pb() { |
330 | let mut b_mb = BMB::new(); | |
cf64af13 | 331 | let cbp = binfo.get_cbp_b(); |
21c16d5f KS |
332 | let bq = (((pinfo.get_pbinfo().get_dbquant() + 5) as u16) * (binfo.get_q() as u16)) >> 2; |
333 | let bquant; | |
334 | if bq < 1 { bquant = 1; } | |
335 | else if bq > 31 { bquant = 31; } | |
336 | else { bquant = bq as u8; } | |
337 | ||
338 | b_mb.cbp = cbp; | |
cf64af13 | 339 | for i in 0..6 { |
2a2aa421 | 340 | bd.decode_block_inter(&binfo, &sstate, bquant, i, (cbp & (1 << (5 - i))) != 0, &mut b_mb.blk[i])?; |
21c16d5f | 341 | h263_idct(&mut b_mb.blk[i]); |
cf64af13 | 342 | } |
21c16d5f | 343 | |
88c58b1b | 344 | let is_fwd = !binfo.is_b_fwd(); |
21c16d5f KS |
345 | b_mb.fwd = is_fwd; |
346 | b_mb.num_mv = binfo.get_num_mvs(); | |
347 | if binfo.get_num_mvs() == 0 { | |
348 | b_mb.num_mv = 1; | |
349 | b_mb.mv_f[0] = binfo.get_mv2(1); | |
350 | b_mb.mv_b[0] = binfo.get_mv2(0); | |
88c58b1b KS |
351 | } else if binfo.get_num_mvs() == 1 { |
352 | let src_mv = binfo.get_mv(0).scale(bsdiff, tsdiff); | |
2324f30b | 353 | let mv_f = MV::add_umv(src_mv, binfo.get_mv2(0), pinfo.get_mvmode()); |
21c16d5f KS |
354 | let mv_b = MV::b_sub(binfo.get_mv(0), mv_f, binfo.get_mv2(0), bsdiff, tsdiff); |
355 | b_mb.mv_f[0] = mv_f; | |
356 | b_mb.mv_b[0] = mv_b; | |
357 | } else { | |
358 | for blk_no in 0..4 { | |
88c58b1b | 359 | let src_mv = binfo.get_mv(blk_no).scale(bsdiff, tsdiff); |
2324f30b | 360 | let mv_f = MV::add_umv(src_mv, binfo.get_mv2(0), pinfo.get_mvmode()); |
21c16d5f KS |
361 | let mv_b = MV::b_sub(binfo.get_mv(blk_no), mv_f, binfo.get_mv2(0), bsdiff, tsdiff); |
362 | b_mb.mv_f[blk_no] = mv_f; | |
363 | b_mb.mv_b[blk_no] = mv_b; | |
cf64af13 KS |
364 | } |
365 | } | |
21c16d5f | 366 | self.b_data.push(b_mb); |
cf64af13 | 367 | } |
2a2aa421 KS |
368 | sstate.next_mb(); |
369 | mb_pos += 1; | |
cf64af13 | 370 | } |
2a2aa421 KS |
371 | if let Some(plusinfo) = pinfo.plusinfo { |
372 | if plusinfo.deblock { | |
373 | bdsp.filter_row(&mut buf, mb_y, self.mb_w, &cbpi); | |
374 | } | |
f2f1afb2 | 375 | } |
cf64af13 | 376 | mvi.update_row(); |
f2f1afb2 | 377 | cbpi.update_row(); |
2a2aa421 | 378 | sstate.new_row(); |
cf64af13 | 379 | } |
f2f1afb2 | 380 | |
cf64af13 | 381 | self.cur_frm = Some(buf); |
21c16d5f | 382 | self.last_ts = pinfo.ts; |
cf64af13 KS |
383 | Ok(bufinfo) |
384 | } | |
385 | ||
2a2aa421 | 386 | pub fn get_bframe(&mut self, bdsp: &BlockDSP) -> DecoderResult<NABufferType> { |
21c16d5f KS |
387 | if !self.has_b || !self.cur_frm.is_some() || !self.prev_frm.is_some() { |
388 | return Err(DecoderError::MissingReference); | |
389 | } | |
390 | self.has_b = false; | |
391 | ||
392 | let fmt = formats::YUV420_FORMAT; | |
393 | let vinfo = NAVideoInfo::new(self.w, self.h, false, fmt); | |
394 | let bufret = alloc_video_buffer(vinfo, 4); | |
395 | if let Err(_) = bufret { return Err(DecoderError::InvalidData); } | |
396 | let mut bufinfo = bufret.unwrap(); | |
397 | let mut b_buf = bufinfo.get_vbuf().unwrap(); | |
398 | ||
399 | if let Some(ref bck_buf) = self.prev_frm { | |
400 | if let Some(ref fwd_buf) = self.cur_frm { | |
2a2aa421 | 401 | recon_b_frame(&mut b_buf, bck_buf, fwd_buf, self.mb_w, self.mb_h, &self.b_data, bdsp); |
21c16d5f KS |
402 | } |
403 | } | |
404 | ||
405 | self.b_data.truncate(0); | |
406 | Ok(bufinfo) | |
407 | } | |
408 | } | |
409 | ||
410 | fn recon_b_frame(b_buf: &mut NAVideoBuffer<u8>, bck_buf: &NAVideoBuffer<u8>, fwd_buf: &NAVideoBuffer<u8>, | |
2a2aa421 | 411 | mb_w: usize, mb_h: usize, b_data: &Vec<BMB>, bdsp: &BlockDSP) { |
f2f1afb2 | 412 | let mut cbpi = CBPInfo::new(); |
21c16d5f | 413 | let mut cur_mb = 0; |
f2f1afb2 | 414 | cbpi.reset(mb_w); |
21c16d5f KS |
415 | for mb_y in 0..mb_h { |
416 | for mb_x in 0..mb_w { | |
417 | let num_mv = b_data[cur_mb].num_mv; | |
418 | let is_fwd = b_data[cur_mb].fwd; | |
f2f1afb2 KS |
419 | let cbp = b_data[cur_mb].cbp; |
420 | cbpi.set_cbp(mb_x, cbp); | |
421 | if num_mv == 1 { | |
2a2aa421 | 422 | bdsp.copy_blocks(b_buf, fwd_buf, mb_x * 16, mb_y * 16, 16, 16, b_data[cur_mb].mv_b[0]); |
21c16d5f | 423 | if !is_fwd { |
2a2aa421 | 424 | bdsp.avg_blocks(b_buf, bck_buf, mb_x * 16, mb_y * 16, 16, 16, b_data[cur_mb].mv_f[0]); |
21c16d5f KS |
425 | } |
426 | } else { | |
427 | for blk_no in 0..4 { | |
428 | let xpos = mb_x * 16 + (blk_no & 1) * 8; | |
429 | let ypos = mb_y * 16 + (blk_no & 2) * 4; | |
2a2aa421 | 430 | bdsp.copy_blocks(b_buf, fwd_buf, xpos, ypos, 8, 8, b_data[cur_mb].mv_b[blk_no]); |
21c16d5f | 431 | if !is_fwd { |
2a2aa421 | 432 | bdsp.avg_blocks(b_buf, bck_buf, xpos, ypos, 8, 8, b_data[cur_mb].mv_f[blk_no]); |
21c16d5f KS |
433 | } |
434 | } | |
435 | } | |
f2f1afb2 | 436 | if cbp != 0 { |
21c16d5f KS |
437 | blockdsp::add_blocks(b_buf, mb_x, mb_y, &b_data[cur_mb].blk); |
438 | } | |
439 | cur_mb += 1; | |
cf64af13 | 440 | } |
f2f1afb2 | 441 | cbpi.update_row(); |
cf64af13 KS |
442 | } |
443 | } |