| 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 | } |
| 648 | #[allow(clippy::if_same_then_else)] |
| 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) { |
| 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]; |
| 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 | } |