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696e4e20 KS |
1 | use nihav_codec_support::codecs::{MV, ZERO_MV}; |
2 | use nihav_codec_support::data::GenericCache; | |
3 | use super::FrameRefs; | |
4 | ||
5 | #[repr(u8)] | |
6 | #[derive(Clone,Copy,Debug,PartialEq)] | |
7 | pub enum BMode { | |
8 | L0, | |
9 | L1, | |
10 | Bi, | |
11 | } | |
12 | ||
13 | #[derive(Clone,Copy,Debug,PartialEq)] | |
14 | pub enum MBType { | |
15 | Intra4x4, | |
16 | Intra8x8, | |
17 | Intra16x16(u8, u8, u8), | |
18 | PCM, | |
19 | ||
20 | P16x16, | |
21 | P16x8, | |
22 | P8x16, | |
23 | P8x8, | |
24 | P8x8Ref0, | |
25 | PSkip, | |
26 | ||
27 | Direct, | |
28 | B16x16(BMode), | |
29 | B16x8(BMode, BMode), | |
30 | B8x16(BMode, BMode), | |
31 | B8x8, | |
32 | BSkip, | |
33 | } | |
34 | ||
35 | impl MBType { | |
36 | pub fn is_intra(self) -> bool { | |
37 | match self { | |
38 | MBType::Intra4x4 | MBType::Intra8x8 | MBType::Intra16x16(_, _, _) | MBType::PCM => true, | |
39 | _ => false, | |
40 | } | |
41 | } | |
42 | pub fn is_intra16x16(self) -> bool { | |
43 | if let MBType::Intra16x16(_, _, _) = self { | |
44 | true | |
45 | } else { | |
46 | false | |
47 | } | |
48 | } | |
49 | pub fn is_skip(self) -> bool { | |
50 | match self { | |
51 | MBType::PSkip | MBType::BSkip => true, | |
52 | _ => false, | |
53 | } | |
54 | } | |
55 | pub fn is_4x4(self) -> bool { self.num_parts() == 4 } | |
56 | pub fn is_l0(self, part: usize) -> bool { | |
57 | match self { | |
58 | MBType::B16x16(mode) => mode == BMode::L0, | |
59 | MBType::B16x8(mode0, mode1) | MBType::B8x16(mode0, mode1) => { | |
60 | if part == 0 { | |
61 | mode0 == BMode::L0 | |
62 | } else { | |
63 | mode1 == BMode::L0 | |
64 | } | |
65 | }, | |
66 | MBType::Direct | MBType::BSkip => false, | |
67 | _ => true, | |
68 | } | |
69 | } | |
70 | pub fn is_l1(self, part: usize) -> bool { | |
71 | match self { | |
72 | MBType::B16x16(mode) => mode == BMode::L1, | |
73 | MBType::B16x8(mode0, mode1) | MBType::B8x16(mode0, mode1) => { | |
74 | if part == 0 { | |
75 | mode0 == BMode::L1 | |
76 | } else { | |
77 | mode1 == BMode::L1 | |
78 | } | |
79 | }, | |
80 | _ => false, | |
81 | } | |
82 | } | |
83 | pub fn num_parts(self) -> usize { | |
84 | match self { | |
85 | MBType::Intra4x4 | MBType::Intra8x8 | MBType::Intra16x16(_, _, _) | MBType::PCM | | |
86 | MBType::PSkip | | |
87 | MBType::Direct | MBType::BSkip | |
88 | => 1, | |
89 | MBType::P16x16 | | |
90 | MBType::B16x16(_) | |
91 | => 1, | |
92 | MBType::P16x8 | MBType::P8x16 | | |
93 | MBType::B16x8(_, _) | MBType::B8x16(_, _) | |
94 | => 2, | |
95 | _ => 4, | |
96 | } | |
97 | } | |
98 | pub fn size(self) -> (usize, usize) { | |
99 | match self { | |
100 | MBType::Intra4x4 | | |
101 | MBType::Intra8x8 | | |
102 | MBType::Intra16x16(_, _, _) | | |
103 | MBType::PCM | | |
104 | MBType::P16x16 | | |
105 | MBType::PSkip | | |
106 | MBType::Direct | | |
107 | MBType::B16x16(_) | | |
108 | MBType::BSkip | |
109 | => (16, 16), | |
110 | MBType::P16x8 | MBType::B16x8(_, _) => (16, 8), | |
111 | MBType::P8x16 | MBType::B8x16(_, _) => (8, 16), | |
112 | _ => (8, 8), | |
113 | } | |
114 | } | |
115 | } | |
116 | ||
117 | impl Default for MBType { | |
118 | fn default() -> Self { MBType::Intra4x4 } | |
119 | } | |
120 | ||
121 | #[derive(Clone,Copy,Debug,PartialEq)] | |
122 | pub enum SubMBType { | |
123 | P8x8, | |
124 | P8x4, | |
125 | P4x8, | |
126 | P4x4, | |
127 | Direct8x8, | |
128 | B8x8(BMode), | |
129 | B8x4(BMode), | |
130 | B4x8(BMode), | |
131 | B4x4(BMode), | |
132 | } | |
133 | ||
134 | impl SubMBType { | |
135 | pub fn num_parts(self) -> usize { | |
136 | match self { | |
137 | SubMBType::P8x8 | SubMBType::Direct8x8 | SubMBType::B8x8(_) => 1, | |
138 | SubMBType::P4x4 | SubMBType::B4x4(_) => 4, | |
139 | _ => 2, | |
140 | } | |
141 | } | |
142 | pub fn size(self) -> (usize, usize) { | |
143 | match self { | |
144 | SubMBType::P8x8 | SubMBType::Direct8x8 | SubMBType::B8x8(_) => (8, 8), | |
145 | SubMBType::P8x4 | SubMBType::B8x4(_) => (8, 4), | |
146 | SubMBType::P4x8 | SubMBType::B4x8(_) => (4, 8), | |
147 | SubMBType::P4x4 | SubMBType::B4x4(_) => (4, 4), | |
148 | } | |
149 | } | |
150 | pub fn is_l0(self) -> bool { | |
151 | match self { | |
152 | SubMBType::B8x8(mode) | SubMBType::B8x4(mode) | | |
153 | SubMBType::B4x8(mode) | SubMBType::B4x4(mode) => { | |
154 | mode == BMode::L0 | |
155 | }, | |
156 | _ => true, | |
157 | } | |
158 | } | |
159 | pub fn is_l1(self) -> bool { | |
160 | match self { | |
161 | SubMBType::B8x8(mode) | SubMBType::B8x4(mode) | | |
162 | SubMBType::B4x8(mode) | SubMBType::B4x4(mode) => { | |
163 | mode == BMode::L1 | |
164 | }, | |
165 | _ => false, | |
166 | } | |
167 | } | |
168 | } | |
169 | ||
170 | impl Default for SubMBType { | |
171 | fn default() -> Self { SubMBType::Direct8x8 } | |
172 | } | |
173 | ||
174 | #[repr(u8)] | |
175 | #[derive(Clone,Copy,Debug,PartialEq)] | |
176 | pub enum CompactMBType { | |
177 | Intra4x4, | |
178 | Intra8x8, | |
179 | Intra16x16, | |
180 | PCM, | |
181 | ||
182 | P16x16, | |
183 | P16x8, | |
184 | P8x16, | |
185 | P8x8, | |
186 | P8x8Ref0, | |
187 | PSkip, | |
188 | ||
189 | Direct, | |
190 | B16x16, | |
191 | B16x8, | |
192 | B8x16, | |
193 | B8x8, | |
194 | BSkip, | |
195 | ||
196 | None, | |
197 | } | |
198 | ||
199 | impl CompactMBType { | |
200 | pub fn is_intra(self) -> bool { | |
201 | match self { | |
202 | CompactMBType::Intra4x4 | CompactMBType::Intra8x8 | CompactMBType::Intra16x16 => true, | |
203 | _ => false, | |
204 | } | |
205 | } | |
206 | pub fn is_intra16orpcm(self) -> bool { | |
207 | match self { | |
208 | CompactMBType::Intra16x16 | CompactMBType::PCM => true, | |
209 | _ => false, | |
210 | } | |
211 | } | |
212 | pub fn is_skip(self) -> bool { | |
213 | match self { | |
214 | CompactMBType::PSkip | CompactMBType::BSkip => true, | |
215 | _ => false, | |
216 | } | |
217 | } | |
218 | pub fn is_direct(self) -> bool { | |
219 | match self { | |
220 | CompactMBType::BSkip | CompactMBType::Direct | CompactMBType::None => true, | |
221 | _ => false, | |
222 | } | |
223 | } | |
224 | pub fn is_inter(self) -> bool { | |
225 | !self.is_intra() && !self.is_skip() && self != CompactMBType::PCM | |
226 | } | |
227 | pub fn is_16x16(self) -> bool { | |
228 | match self { | |
229 | CompactMBType::P16x8 | CompactMBType::P8x16 | | |
230 | CompactMBType::P8x8 | CompactMBType::P8x8Ref0 | | |
231 | CompactMBType::B16x8 | CompactMBType::B8x16 | | |
232 | CompactMBType::B8x8 => false, | |
233 | _ => true, | |
234 | } | |
235 | } | |
236 | } | |
237 | ||
238 | impl Default for CompactMBType { | |
239 | fn default() -> Self { CompactMBType::None } | |
240 | } | |
241 | ||
242 | impl From<MBType> for CompactMBType { | |
243 | fn from(mbtype: MBType) -> Self { | |
244 | match mbtype { | |
245 | MBType::Intra4x4 => CompactMBType::Intra4x4, | |
246 | MBType::Intra8x8 => CompactMBType::Intra8x8, | |
247 | MBType::Intra16x16(_, _, _) => CompactMBType::Intra16x16, | |
248 | MBType::PCM => CompactMBType::PCM, | |
249 | MBType::P16x16 => CompactMBType::P16x16, | |
250 | MBType::P16x8 => CompactMBType::P16x8, | |
251 | MBType::P8x16 => CompactMBType::P8x16, | |
252 | MBType::P8x8 => CompactMBType::P8x8, | |
253 | MBType::P8x8Ref0 => CompactMBType::P8x8Ref0, | |
254 | MBType::PSkip => CompactMBType::PSkip, | |
255 | MBType::Direct => CompactMBType::Direct, | |
256 | MBType::B16x16(_) => CompactMBType::B16x16, | |
257 | MBType::B16x8(_, _) => CompactMBType::B16x8, | |
258 | MBType::B8x16(_, _) => CompactMBType::B8x16, | |
259 | MBType::B8x8 => CompactMBType::B8x8, | |
260 | MBType::BSkip => CompactMBType::BSkip, | |
261 | } | |
262 | } | |
263 | } | |
264 | ||
265 | #[repr(u8)] | |
266 | #[derive(Clone,Copy,Debug,PartialEq)] | |
267 | pub enum IntraPredMode { | |
268 | Vertical, | |
269 | Horizontal, | |
270 | DC, | |
271 | DiagDownLeft, | |
272 | DiagDownRight, | |
273 | VerRight, | |
274 | HorDown, | |
275 | VerLeft, | |
276 | HorUp, | |
277 | None, | |
278 | } | |
279 | ||
280 | impl IntraPredMode { | |
281 | pub fn is_none(self) -> bool { self == IntraPredMode::None } | |
282 | pub fn into_pred_idx(self) -> i8 { | |
283 | if !self.is_none() { | |
284 | self as u8 as i8 | |
285 | } else { | |
286 | -1 | |
287 | } | |
288 | } | |
289 | } | |
290 | ||
291 | impl Default for IntraPredMode { | |
292 | fn default() -> Self { IntraPredMode::None } | |
293 | } | |
294 | ||
295 | impl From<u8> for IntraPredMode { | |
296 | fn from(val: u8) -> Self { | |
297 | match val { | |
298 | 0 => IntraPredMode::Vertical, | |
299 | 1 => IntraPredMode::Horizontal, | |
300 | 2 => IntraPredMode::DC, | |
301 | 3 => IntraPredMode::DiagDownLeft, | |
302 | 4 => IntraPredMode::DiagDownRight, | |
303 | 5 => IntraPredMode::VerRight, | |
304 | 6 => IntraPredMode::HorDown, | |
305 | 7 => IntraPredMode::VerLeft, | |
306 | 8 => IntraPredMode::HorUp, | |
307 | _ => IntraPredMode::None, | |
308 | } | |
309 | } | |
310 | } | |
311 | ||
312 | impl Into<u8> for IntraPredMode { | |
313 | fn into(self) -> u8 { | |
314 | match self { | |
315 | IntraPredMode::Vertical => 0, | |
316 | IntraPredMode::Horizontal => 1, | |
317 | IntraPredMode::DC => 2, | |
318 | IntraPredMode::DiagDownLeft => 3, | |
319 | IntraPredMode::DiagDownRight => 4, | |
320 | IntraPredMode::VerRight => 5, | |
321 | IntraPredMode::HorDown => 6, | |
322 | IntraPredMode::VerLeft => 7, | |
323 | IntraPredMode::HorUp => 8, | |
324 | _ => 9, | |
325 | } | |
326 | } | |
327 | } | |
328 | ||
329 | pub const MISSING_POC: u16 = 0xFFFF; | |
330 | ||
331 | #[derive(Clone,Copy,Debug)] | |
332 | pub struct PicRef { | |
333 | ref_idx: u8 | |
334 | } | |
335 | ||
336 | pub const MISSING_REF: PicRef = PicRef { ref_idx: 0xFF }; | |
337 | pub const INVALID_REF: PicRef = PicRef { ref_idx: 0xFE }; | |
338 | pub const ZERO_REF: PicRef = PicRef { ref_idx: 0 }; | |
339 | const DIRECT_FLAG: u8 = 0x40; | |
340 | ||
341 | impl PicRef { | |
342 | pub fn new(ref_idx: u8) -> Self { | |
343 | Self { ref_idx } | |
344 | } | |
345 | pub fn not_avail(self) -> bool { | |
346 | self == MISSING_REF || self == INVALID_REF | |
347 | } | |
348 | pub fn index(self) -> usize { (self.ref_idx & !DIRECT_FLAG) as usize } | |
349 | pub fn is_direct(self) -> bool { (self.ref_idx & DIRECT_FLAG) != 0 } | |
350 | pub fn set_direct(&mut self) { self.ref_idx |= DIRECT_FLAG; } | |
351 | fn min_pos(self, other: Self) -> Self { | |
352 | match (self.not_avail(), other.not_avail()) { | |
353 | (true, true) => self, | |
354 | (false, true) => self, | |
355 | (true, false) => other, | |
356 | (false, false) => PicRef::new((self.ref_idx & !DIRECT_FLAG).min(other.ref_idx & !DIRECT_FLAG)), | |
357 | } | |
358 | } | |
359 | } | |
360 | ||
361 | impl Default for PicRef { | |
362 | fn default() -> Self { MISSING_REF } | |
363 | } | |
364 | ||
365 | impl PartialEq for PicRef { | |
366 | fn eq(&self, other: &Self) -> bool { | |
367 | (self.ref_idx | DIRECT_FLAG) == (other.ref_idx | DIRECT_FLAG) | |
368 | } | |
369 | } | |
370 | ||
371 | impl std::fmt::Display for PicRef { | |
372 | fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { | |
373 | if *self == MISSING_REF { | |
374 | write!(f, "-1") | |
375 | } else if *self == INVALID_REF { | |
376 | write!(f, "-2") | |
377 | } else { | |
378 | write!(f, "{}", self.ref_idx & !DIRECT_FLAG) | |
379 | } | |
380 | } | |
381 | } | |
382 | ||
383 | #[derive(Clone,Copy,Default)] | |
384 | pub struct MBData { | |
385 | pub mb_type: CompactMBType, | |
386 | pub cbp: u8, | |
387 | pub coded_flags: u32, | |
388 | pub cmode: u8, | |
389 | pub qp_y: u8, | |
390 | pub qp_u: u8, | |
391 | pub qp_v: u8, | |
392 | pub transform_8x8: bool, | |
393 | } | |
394 | ||
395 | pub fn blk4_to_blk8(blk4: usize) -> usize { | |
396 | const MAP: [usize; 16] = [ 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3 ]; | |
397 | MAP[blk4 & 0xF] | |
398 | } | |
399 | ||
400 | #[derive(Clone,Copy)] | |
401 | pub struct Blk8Data { | |
402 | pub ref_idx: [PicRef; 2], | |
403 | pub ncoded_c: [u8; 2], | |
404 | } | |
405 | ||
406 | impl Default for Blk8Data { | |
407 | fn default() -> Self { | |
408 | Self { | |
409 | ref_idx: [MISSING_REF; 2], | |
410 | ncoded_c: [0; 2], | |
411 | } | |
412 | } | |
413 | } | |
414 | ||
415 | #[derive(Clone,Copy,Default)] | |
416 | pub struct Blk4Data { | |
417 | pub ncoded: u8, | |
418 | pub ipred: IntraPredMode, | |
419 | pub mv: [MV; 2], | |
420 | pub mvd: [MV; 2], | |
421 | } | |
422 | ||
423 | pub struct SliceState { | |
424 | pub mb_x: usize, | |
425 | pub mb_y: usize, | |
426 | pub mb_w: usize, | |
427 | pub mb_h: usize, | |
428 | pub mb_start: usize, | |
429 | ||
430 | pub mb: GenericCache<MBData>, | |
431 | pub blk8: GenericCache<Blk8Data>, | |
432 | pub blk4: GenericCache<Blk4Data>, | |
433 | ||
434 | pub deblock: GenericCache<u8>, | |
435 | ||
436 | pub has_top: bool, | |
437 | pub has_left: bool, | |
438 | } | |
439 | ||
440 | impl SliceState { | |
441 | pub fn new() -> Self { | |
442 | Self { | |
443 | mb_x: 0, | |
444 | mb_y: 0, | |
445 | mb_w: 0, | |
446 | mb_h: 0, | |
447 | mb_start: 0, | |
448 | mb: GenericCache::new(0, 0, MBData::default()), | |
449 | blk8: GenericCache::new(0, 0, Blk8Data::default()), | |
450 | blk4: GenericCache::new(0, 0, Blk4Data::default()), | |
451 | ||
452 | deblock: GenericCache::new(0, 0, 0), | |
453 | ||
454 | has_top: false, | |
455 | has_left: false, | |
456 | } | |
457 | } | |
458 | pub fn reset(&mut self, mb_w: usize, mb_h: usize, mb_pos: usize) { | |
459 | self.mb_w = mb_w; | |
460 | self.mb_h = mb_h; | |
461 | self.mb_start = mb_pos; | |
462 | if mb_w > 0 { | |
463 | self.mb_x = mb_pos % mb_w; | |
464 | self.mb_y = mb_pos / mb_w; | |
465 | } else { | |
466 | self.mb_x = 0; | |
467 | self.mb_y = 0; | |
468 | } | |
469 | self.mb = GenericCache::new(1, mb_w + 2, MBData::default()); | |
470 | self.blk8 = GenericCache::new(2, mb_w * 2 + 2, Blk8Data::default()); | |
471 | self.blk4 = GenericCache::new(4, mb_w * 4 + 2, Blk4Data::default()); | |
472 | ||
473 | self.deblock = GenericCache::new(4, mb_w * 4 + 1, 0); | |
474 | ||
475 | self.has_top = false; | |
476 | self.has_left = false; | |
477 | } | |
478 | pub fn fill_deblock(&mut self, deblock_mode: u8, is_s: bool) { | |
479 | if deblock_mode == 1 { | |
480 | return; | |
481 | } | |
482 | ||
483 | let tx8x8 = self.get_cur_mb().transform_8x8; | |
484 | ||
485 | let mut idx = self.deblock.xpos + self.mb_x * 4; | |
486 | let cur_mbt = self.get_cur_mb().mb_type; | |
487 | let left_mbt = self.get_left_mb().mb_type; | |
488 | let mut top_mbt = self.get_top_mb().mb_type; | |
489 | for y in 0..4 { | |
490 | if tx8x8 && (y & 1) != 0 { | |
491 | continue; | |
492 | } | |
493 | let can_do_top = y != 0 || (self.mb_y != 0 && (self.has_top || deblock_mode != 2)); | |
494 | if can_do_top { | |
495 | if is_s || cur_mbt.is_intra() || top_mbt.is_intra() { | |
496 | let val = if y == 0 { 0x40 } else { 0x30 }; | |
497 | for el in self.deblock.data[idx..][..4].iter_mut() { *el |= val; } | |
498 | } else { | |
499 | for x in 0..4 { | |
500 | if self.get_cur_blk4(x).ncoded != 0 || self.get_top_blk4(x).ncoded != 0 { | |
501 | self.deblock.data[idx + x] |= 0x20; | |
502 | } else { | |
503 | let cur_mv = self.get_cur_blk4(x).mv; | |
504 | let top_mv = self.get_top_blk4(x).mv; | |
505 | let cur_ref = self.get_cur_blk8(x / 2).ref_idx; | |
506 | let top_ref = self.get_top_blk8(x / 2).ref_idx; | |
507 | if mvdiff4(cur_mv[0], top_mv[0]) || mvdiff4(cur_mv[1], top_mv[1]) || cur_ref != top_ref { | |
508 | self.deblock.data[idx + x] |= 0x10; | |
509 | } | |
510 | } | |
511 | } | |
512 | } | |
513 | } | |
514 | let mut lleft_mbt = left_mbt; | |
515 | for x in 0..4 { | |
516 | if tx8x8 && (x & 1) != 0 { | |
517 | continue; | |
518 | } | |
519 | let can_do_left = x > 0 || self.has_left || (self.mb_x != 0 && deblock_mode != 2); | |
520 | if !can_do_left { | |
521 | continue; | |
522 | } | |
523 | let blk4 = x + y * 4; | |
524 | let blk8 = x / 2 + (y / 2) * 2; | |
525 | if is_s || cur_mbt.is_intra() || lleft_mbt.is_intra() { | |
526 | self.deblock.data[idx + x] |= if x == 0 { 4 } else { 3 }; | |
527 | } else if self.get_cur_blk4(blk4).ncoded != 0 || self.get_top_blk4(blk4).ncoded != 0 { | |
528 | self.deblock.data[idx + x] |= 2; | |
529 | } else { | |
530 | let cur_mv = self.get_cur_blk4(blk4).mv; | |
531 | let left_mv = self.get_left_blk4(blk4).mv; | |
532 | let cur_ref = self.get_cur_blk8(blk8).ref_idx; | |
533 | let left_ref = self.get_left_blk8(blk8).ref_idx; | |
534 | if mvdiff4(cur_mv[0], left_mv[0]) || mvdiff4(cur_mv[1], left_mv[1]) || cur_ref != left_ref { | |
535 | self.deblock.data[idx + x] |= 1; | |
536 | } | |
537 | } | |
538 | lleft_mbt = cur_mbt; | |
539 | } | |
540 | top_mbt = cur_mbt; | |
541 | idx += self.deblock.stride; | |
542 | } | |
543 | } | |
544 | pub fn next_mb(&mut self) { | |
545 | self.mb_x += 1; | |
546 | self.has_left = true; | |
547 | if self.mb_x == self.mb_w { | |
548 | self.mb_x = 0; | |
549 | self.mb_y += 1; | |
550 | self.mb.update_row(); | |
551 | self.blk8.update_row(); | |
552 | self.blk4.update_row(); | |
553 | ||
554 | self.deblock.update_row(); | |
555 | ||
556 | self.has_left = false; | |
557 | } | |
558 | self.has_top = self.mb_x + self.mb_y * self.mb_w >= self.mb_start + self.mb_w; | |
559 | } | |
560 | pub fn get_cur_mb_idx(&self) -> usize { self.mb.xpos + self.mb_x } | |
561 | pub fn get_cur_blk8_idx(&self, blk_no: usize) -> usize { | |
562 | self.blk8.xpos + self.mb_x * 2 + (blk_no & 1) + (blk_no >> 1) * self.blk8.stride | |
563 | } | |
564 | pub fn get_cur_blk4_idx(&self, blk_no: usize) -> usize { | |
565 | self.blk4.xpos + self.mb_x * 4 + (blk_no & 3) + (blk_no >> 2) * self.blk4.stride | |
566 | } | |
567 | pub fn get_cur_mb(&mut self) -> &mut MBData { | |
568 | let idx = self.get_cur_mb_idx(); | |
569 | &mut self.mb.data[idx] | |
570 | } | |
571 | pub fn get_left_mb(&self) -> &MBData { | |
572 | &self.mb.data[self.get_cur_mb_idx() - 1] | |
573 | } | |
574 | pub fn get_top_mb(&self) -> &MBData { | |
575 | &self.mb.data[self.get_cur_mb_idx() - self.mb.stride] | |
576 | } | |
577 | pub fn get_cur_blk8(&mut self, blk_no: usize) -> &mut Blk8Data { | |
578 | let idx = self.get_cur_blk8_idx(blk_no); | |
579 | &mut self.blk8.data[idx] | |
580 | } | |
581 | pub fn get_left_blk8(&self, blk_no: usize) -> &Blk8Data { | |
582 | &self.blk8.data[self.get_cur_blk8_idx(blk_no) - 1] | |
583 | } | |
584 | pub fn get_top_blk8(&self, blk_no: usize) -> &Blk8Data { | |
585 | &self.blk8.data[self.get_cur_blk8_idx(blk_no) - self.blk8.stride] | |
586 | } | |
587 | pub fn get_cur_blk4(&mut self, blk_no: usize) -> &mut Blk4Data { | |
588 | let idx = self.get_cur_blk4_idx(blk_no); | |
589 | &mut self.blk4.data[idx] | |
590 | } | |
591 | pub fn get_left_blk4(&self, blk_no: usize) -> &Blk4Data { | |
592 | &self.blk4.data[self.get_cur_blk4_idx(blk_no) - 1] | |
593 | } | |
594 | pub fn get_top_blk4(&self, blk_no: usize) -> &Blk4Data { | |
595 | &self.blk4.data[self.get_cur_blk4_idx(blk_no) - self.blk4.stride] | |
596 | } | |
597 | ||
598 | pub fn apply_to_blk8<F: (Fn(&mut Blk8Data))>(&mut self, f: F) { | |
599 | let start = self.get_cur_blk8_idx(0); | |
600 | for row in self.blk8.data[start..].chunks_mut(self.blk8.stride).take(2) { | |
601 | for el in row[..2].iter_mut() { | |
602 | f(el); | |
603 | } | |
604 | } | |
605 | } | |
606 | pub fn apply_to_blk4<F: (Fn(&mut Blk4Data))>(&mut self, f: F) { | |
607 | let start = self.get_cur_blk4_idx(0); | |
608 | for row in self.blk4.data[start..].chunks_mut(self.blk4.stride).take(4) { | |
609 | for el in row[..4].iter_mut() { | |
610 | f(el); | |
611 | } | |
612 | } | |
613 | } | |
614 | ||
615 | pub fn fill_ipred(&mut self, imode: IntraPredMode) { | |
616 | self.apply_to_blk4(|blk| blk.ipred = imode); | |
617 | } | |
618 | pub fn fill_ncoded(&mut self, nc: u8) { | |
619 | self.apply_to_blk4(|blk| blk.ncoded = nc); | |
620 | self.apply_to_blk8(|blk| blk.ncoded_c = [nc; 2]); | |
621 | } | |
622 | pub fn reset_mb_mv(&mut self) { | |
623 | self.apply_to_blk8(|blk| blk.ref_idx = [INVALID_REF; 2]); | |
624 | } | |
625 | ||
626 | pub fn get_mv_ctx(&self, xoff: usize, yoff: usize, ref_l: usize) -> (usize, usize) { | |
627 | let blk_no = xoff / 4 + yoff; | |
628 | let mv_a = self.get_left_blk4(blk_no).mvd[ref_l]; | |
629 | let mv_b = self.get_top_blk4(blk_no).mvd[ref_l]; | |
630 | let mv = mv_a + mv_b; | |
631 | let ctx0 = if mv.x < 3 { 0 } else if mv.x <= 32 { 1 } else { 2 }; | |
632 | let ctx1 = if mv.y < 3 { 0 } else if mv.y <= 32 { 1 } else { 2 }; | |
633 | (ctx0, ctx1) | |
634 | } | |
635 | pub fn get_mv_ref_ctx(&self, xoff: usize, yoff: usize, ref_l: usize) -> usize { | |
636 | let blk_no = xoff / 8 + (yoff / 8) * 2; | |
637 | let mut ctx = 0; | |
638 | let left_ref = self.get_left_blk8(blk_no).ref_idx[ref_l]; | |
639 | let top_ref = self.get_top_blk8(blk_no).ref_idx[ref_l]; | |
640 | if !left_ref.not_avail() && !left_ref.is_direct() && left_ref.index() > 0 { | |
641 | ctx += 1; | |
642 | } | |
643 | if !top_ref.not_avail() && !top_ref.is_direct() && top_ref.index() > 0 { | |
644 | ctx += 2; | |
645 | } | |
646 | ctx | |
647 | } | |
4a1ca15c | 648 | #[allow(clippy::if_same_then_else)] |
696e4e20 KS |
649 | pub fn predict(&mut self, xpos: usize, ypos: usize, bw: usize, bh: usize, ref_l: usize, diff_mv: MV, ref_idx: PicRef) { |
650 | let midx = self.get_cur_blk4_idx(0) + xpos / 4 + ypos / 4 * self.blk4.stride; | |
651 | let ridx = self.get_cur_blk8_idx(0) + xpos / 8 + ypos / 8 * self.blk8.stride; | |
652 | let ridx_c = self.get_cur_blk8_idx(0) + (xpos + bw) / 8 + ypos / 8 * self.blk8.stride - if (ypos & 4) == 0 { self.blk8.stride } else { 0 }; | |
653 | ||
654 | let mv_a = self.blk4.data[midx - 1].mv[ref_l]; | |
655 | let mv_b = self.blk4.data[midx - self.blk4.stride].mv[ref_l]; | |
656 | let mut mv_c = self.blk4.data[midx - self.blk4.stride + bw / 4].mv[ref_l]; | |
657 | ||
658 | let rx = if (xpos & 4) != 0 { 0 } else { 1 }; | |
659 | let ry = if (ypos & 4) != 0 { 0 } else { self.blk8.stride }; | |
660 | let ref_a = self.blk8.data[ridx - rx].ref_idx[ref_l]; | |
661 | let ref_b = self.blk8.data[ridx - ry].ref_idx[ref_l]; | |
662 | let mut ref_c = self.blk8.data[ridx_c].ref_idx[ref_l]; | |
663 | ||
664 | if ref_c == MISSING_REF || (((xpos + bw) & 4) == 0 && (ypos & 4) != 0) { | |
665 | mv_c = self.blk4.data[midx - self.blk4.stride - 1].mv[ref_l]; | |
666 | ref_c = self.blk8.data[ridx - rx - ry].ref_idx[ref_l]; | |
667 | } | |
668 | ||
669 | let pred_mv = if bw == 16 && bh == 8 && ypos == 0 && ref_b == ref_idx { | |
670 | mv_b | |
671 | } else if bw == 16 && bh == 8 && ypos != 0 && ref_a == ref_idx { | |
672 | mv_a | |
673 | } else if bw == 8 && bh == 16 && xpos == 0 && ref_a == ref_idx { | |
674 | mv_a | |
675 | } else if bw == 8 && bh == 16 && xpos != 0 && ref_c == ref_idx { | |
676 | mv_c | |
677 | } else if ref_b == MISSING_REF && ref_c == MISSING_REF { | |
678 | mv_a | |
679 | } else { | |
680 | let count = ((ref_a == ref_idx) as u8) + ((ref_b == ref_idx) as u8) + ((ref_c == ref_idx) as u8); | |
681 | if count == 1 { | |
682 | if ref_a == ref_idx { | |
683 | mv_a | |
684 | } else if ref_b == ref_idx { | |
685 | mv_b | |
686 | } else { | |
687 | mv_c | |
688 | } | |
689 | } else { | |
690 | MV::pred(mv_a, mv_b, mv_c) | |
691 | } | |
692 | }; | |
693 | ||
694 | let mv = pred_mv + diff_mv; | |
695 | self.fill_mv (xpos, ypos, bw, bh, ref_l, mv); | |
696 | self.fill_ref(xpos, ypos, bw, bh, ref_l, ref_idx); | |
697 | } | |
698 | pub fn predict_pskip(&mut self) { | |
699 | let midx = self.get_cur_blk4_idx(0); | |
700 | let ridx = self.get_cur_blk8_idx(0); | |
701 | ||
702 | let mv_a = self.blk4.data[midx - 1].mv[0]; | |
703 | let mv_b = self.blk4.data[midx - self.blk4.stride].mv[0]; | |
704 | let mut mv_c = self.blk4.data[midx - self.blk4.stride + 4].mv[0]; | |
705 | ||
706 | let ref_a = self.blk8.data[ridx - 1].ref_idx[0]; | |
707 | let ref_b = self.blk8.data[ridx - self.blk8.stride].ref_idx[0]; | |
708 | let mut ref_c = self.blk8.data[ridx - self.blk8.stride + 2].ref_idx[0]; | |
709 | ||
710 | if ref_c == MISSING_REF { | |
711 | mv_c = self.blk4.data[midx - self.blk4.stride - 1].mv[0]; | |
712 | ref_c = self.blk8.data[ridx - self.blk8.stride - 1].ref_idx[0]; | |
713 | } | |
714 | ||
715 | let ref_idx = ZERO_REF; | |
716 | let mv = if ref_a == MISSING_REF || ref_b == MISSING_REF || (ref_a == ZERO_REF && mv_a == ZERO_MV) || (ref_b == ZERO_REF && mv_b == ZERO_MV) { | |
717 | ZERO_MV | |
718 | } else { | |
719 | let count = ((ref_a == ref_idx) as u8) + ((ref_b == ref_idx) as u8) + ((ref_c == ref_idx) as u8); | |
720 | if count == 1 { | |
721 | if ref_a == ref_idx { | |
722 | mv_a | |
723 | } else if ref_b == ref_idx { | |
724 | mv_b | |
725 | } else { | |
726 | mv_c | |
727 | } | |
728 | } else { | |
729 | MV::pred(mv_a, mv_b, mv_c) | |
730 | } | |
731 | }; | |
732 | ||
733 | self.fill_mv (0, 0, 16, 16, 0, mv); | |
734 | self.fill_ref(0, 0, 16, 16, 0, ref_idx); | |
735 | } | |
736 | pub fn predict_direct_mb(&mut self, frame_refs: &FrameRefs, temporal_mv: bool, cur_id: u16) { | |
737 | let (col_mb, _, _) = frame_refs.get_colocated_info(self.mb_x, self.mb_y); | |
738 | if col_mb.mb_type.is_16x16() || !temporal_mv { | |
739 | let (mv0, ref0, mv1, ref1) = self.get_direct_mv(frame_refs, temporal_mv, cur_id, 0); | |
740 | self.apply_to_blk4(|blk4| blk4.mv = [mv0, mv1]); | |
741 | self.apply_to_blk8(|blk8| blk8.ref_idx = [ref0, ref1]); | |
742 | } else { | |
743 | for blk4 in 0..16 { | |
744 | let (mv0, ref0, mv1, ref1) = self.get_direct_mv(frame_refs, temporal_mv, cur_id, blk4); | |
745 | self.get_cur_blk4(blk4).mv = [mv0, mv1]; | |
746 | self.get_cur_blk8(blk4_to_blk8(blk4)).ref_idx = [ref0, ref1]; | |
747 | } | |
748 | } | |
749 | } | |
750 | pub fn predict_direct_sub(&mut self, frame_refs: &FrameRefs, temporal_mv: bool, cur_id: u16, blk4: usize) { | |
4a1ca15c KS |
751 | let (mv0, ref0, mv1, ref1) = self.get_direct_mv(frame_refs, temporal_mv, cur_id, blk4); |
752 | self.get_cur_blk4(blk4).mv = [mv0, mv1]; | |
753 | self.get_cur_blk8(blk4_to_blk8(blk4)).ref_idx = [ref0, ref1]; | |
696e4e20 KS |
754 | } |
755 | pub fn get_direct_mv(&self, frame_refs: &FrameRefs, temporal_mv: bool, cur_id: u16, blk4: usize) -> (MV, PicRef, MV, PicRef) { | |
756 | let (mbi, r1_poc, r1_long) = frame_refs.get_colocated_info(self.mb_x, self.mb_y); | |
757 | let blk8 = blk4_to_blk8(blk4); | |
758 | let (col_mv, r0_poc, col_idx) = if mbi.ref_poc[blk8] == [MISSING_POC; 2] { | |
759 | (ZERO_MV, MISSING_POC, MISSING_REF) | |
760 | } else if mbi.ref_poc[blk8][0] != MISSING_POC { | |
761 | (mbi.mv[blk4][0], mbi.ref_poc[blk8][0], mbi.ref_idx[blk8][0]) | |
762 | } else { | |
763 | (mbi.mv[blk4][1], mbi.ref_poc[blk8][1], mbi.ref_idx[blk8][1]) | |
764 | }; | |
765 | let (col_ref, r0_long) = frame_refs.map_ref0(r0_poc); | |
766 | if temporal_mv { | |
767 | let td = (i32::from(r1_poc) - i32::from(r0_poc)).max(-128).min(127); | |
768 | if r0_long || td == 0 { | |
769 | (col_mv, col_ref, ZERO_MV, ZERO_REF) | |
770 | } else { | |
771 | let tx = (16384 + (td / 2).abs()) / td; | |
772 | let tb = (i32::from(cur_id) - i32::from(r0_poc)).max(-128).min(127); | |
773 | let scale = ((tb * tx + 32) >> 6).max(-1024).min(1023); | |
774 | let mv0 = MV { | |
775 | x: ((i32::from(col_mv.x) * scale + 128) >> 8) as i16, | |
776 | y: ((i32::from(col_mv.y) * scale + 128) >> 8) as i16, | |
777 | }; | |
778 | let mv1 = mv0 - col_mv; | |
779 | (mv0, col_ref, mv1, ZERO_REF) | |
780 | } | |
781 | } else { | |
782 | let blk4 = 0; // we generate the same MV prediction for the whole MB | |
783 | let blk8 = blk4_to_blk8(blk4); | |
784 | let midx = self.get_cur_blk4_idx(blk4); | |
785 | let ridx = self.get_cur_blk8_idx(blk8); | |
786 | let ridx_c = self.get_cur_blk8_idx(blk8) + 16 / 8 - self.blk8.stride; | |
787 | ||
788 | let mv_a = self.blk4.data[midx - 1].mv; | |
789 | let mv_b = self.blk4.data[midx - self.blk4.stride].mv; | |
790 | let mut mv_c = self.blk4.data[midx - self.blk4.stride + 16 / 4].mv; | |
791 | ||
792 | let ref_a = self.blk8.data[ridx - 1].ref_idx; | |
793 | let ref_b = self.blk8.data[ridx - self.blk8.stride].ref_idx; | |
794 | let mut ref_c = self.blk8.data[ridx_c].ref_idx; | |
795 | ||
796 | if ref_c == [MISSING_REF; 2] { | |
797 | mv_c = self.blk4.data[midx - self.blk4.stride - 1].mv; | |
798 | ref_c = self.blk8.data[ridx - self.blk8.stride - 1].ref_idx; | |
799 | } | |
800 | let mut refs = [INVALID_REF; 2]; | |
801 | for cur_ref in [ref_a, ref_b, ref_c].iter() { | |
802 | refs[0] = refs[0].min_pos(cur_ref[0]); | |
803 | refs[1] = refs[1].min_pos(cur_ref[1]); | |
804 | } | |
805 | if refs == [INVALID_REF; 2] { | |
806 | return (ZERO_MV, ZERO_REF, ZERO_MV, ZERO_REF); | |
807 | } | |
808 | ||
809 | let mut col_zero = true; | |
810 | if r1_long || col_idx != ZERO_REF { | |
811 | col_zero = false; | |
812 | } | |
813 | if col_mv.x.abs() > 1 || col_mv.y.abs() > 1 { | |
814 | col_zero = false; | |
815 | } | |
816 | let mut mvs = [ZERO_MV; 2]; | |
817 | for ref_l in 0..2 { | |
818 | if mbi.mb_type.is_intra() || (!refs[ref_l].not_avail() && !(refs[ref_l] == ZERO_REF && col_zero)) { | |
819 | let ref_idx = refs[ref_l]; | |
820 | mvs[ref_l] = if ref_b[ref_l] == MISSING_REF && ref_c[ref_l] == MISSING_REF { | |
821 | mv_a[ref_l] | |
822 | } else { | |
823 | let count = ((ref_a[ref_l] == ref_idx) as u8) + ((ref_b[ref_l] == ref_idx) as u8) + ((ref_c[ref_l] == ref_idx) as u8); | |
824 | if count == 1 { | |
825 | if ref_a[ref_l] == ref_idx { | |
826 | mv_a[ref_l] | |
827 | } else if ref_b[ref_l] == ref_idx { | |
828 | mv_b[ref_l] | |
829 | } else { | |
830 | mv_c[ref_l] | |
831 | } | |
832 | } else { | |
833 | MV::pred(mv_a[ref_l], mv_b[ref_l], mv_c[ref_l]) | |
834 | } | |
835 | }; | |
836 | } | |
837 | } | |
838 | (mvs[0], refs[0], mvs[1], refs[1]) | |
839 | } | |
840 | } | |
841 | pub fn fill_mv(&mut self, xpos: usize, ypos: usize, bw: usize, bh: usize, ref_l: usize, mv: MV) { | |
842 | let start = self.get_cur_blk4_idx(0) + xpos / 4 + ypos / 4 * self.blk4.stride; | |
843 | for row in self.blk4.data[start..].chunks_mut(self.blk4.stride).take(bh / 4) { | |
844 | for blk in row[..bw / 4].iter_mut() { | |
845 | blk.mv[ref_l] = mv; | |
846 | } | |
847 | } | |
848 | } | |
849 | pub fn fill_mvd(&mut self, xpos: usize, ypos: usize, bw: usize, bh: usize, ref_l: usize, mv: MV) { | |
850 | let mvd = MV{ x: mv.x.abs().min(128), y: mv.y.abs().min(128) }; | |
851 | let start = self.get_cur_blk4_idx(0) + xpos / 4 + ypos / 4 * self.blk4.stride; | |
852 | for row in self.blk4.data[start..].chunks_mut(self.blk4.stride).take(bh / 4) { | |
853 | for blk in row[..bw / 4].iter_mut() { | |
854 | blk.mvd[ref_l] = mvd; | |
855 | } | |
856 | } | |
857 | } | |
858 | pub fn fill_ref(&mut self, xpos: usize, ypos: usize, bw: usize, bh: usize, ref_l: usize, ref_idx: PicRef) { | |
859 | let start = self.get_cur_blk8_idx(0) + xpos / 8 + ypos / 8 * self.blk8.stride; | |
860 | if bw < 8 || bh < 8 { | |
861 | self.blk8.data[start].ref_idx[ref_l] = ref_idx; | |
862 | } else { | |
863 | for row in self.blk8.data[start..].chunks_mut(self.blk8.stride).take(bh / 8) { | |
864 | for blk in row[..bw / 8].iter_mut() { | |
865 | blk.ref_idx[ref_l] = ref_idx; | |
866 | } | |
867 | } | |
868 | } | |
869 | } | |
870 | } | |
871 | ||
872 | fn mvdiff4(mv1: MV, mv2: MV) -> bool { | |
873 | let mv = mv1 - mv2; | |
874 | (mv.x.abs() >= 4) || (mv.y.abs() >= 4) | |
875 | } |