| 1 | use nihav_core::codecs::*; |
| 2 | use nihav_core::io::byteio::*; |
| 3 | use nihav_core::io::bitreader::*; |
| 4 | use nihav_core::io::intcode::*; |
| 5 | use nihav_codec_support::codecs::*; |
| 6 | use nihav_codec_support::codecs::blockdsp::*; |
| 7 | use nihav_codec_support::data::GenericCache; |
| 8 | |
| 9 | use super::svq3dsp::*; |
| 10 | |
| 11 | struct SVQ3Header { |
| 12 | ftype: FrameType, |
| 13 | ts: u8, |
| 14 | quant: u8, |
| 15 | dquant: bool, |
| 16 | } |
| 17 | |
| 18 | #[derive(Clone,Copy,Debug,PartialEq)] |
| 19 | enum MCMode { |
| 20 | Pixel, |
| 21 | Halfpel, |
| 22 | Thirdpel |
| 23 | } |
| 24 | |
| 25 | #[derive(Default)] |
| 26 | struct SState { |
| 27 | q: u8, |
| 28 | has_left: bool, |
| 29 | has_top: bool, |
| 30 | has_tl: bool, |
| 31 | has_tr: bool, |
| 32 | trb: u8, |
| 33 | trd: u8, |
| 34 | } |
| 35 | |
| 36 | struct IntraModeState { |
| 37 | cache: GenericCache<i8>, |
| 38 | i16_pred: i8, |
| 39 | } |
| 40 | |
| 41 | impl IntraModeState { |
| 42 | fn new(mb_w: usize) -> Self { |
| 43 | let stride = 1 + mb_w * 4 + 1; |
| 44 | IntraModeState { cache: GenericCache::new(4, stride, -1), i16_pred: 0 } |
| 45 | } |
| 46 | fn reset(&mut self) { self.cache.reset(); } |
| 47 | fn update(&mut self) { self.cache.update_row(); } |
| 48 | fn get_pos(&self, xpos: usize) -> usize { |
| 49 | self.cache.stride + 1 + xpos * 4 |
| 50 | } |
| 51 | fn set_mb_x(&mut self, mb_x: usize) { |
| 52 | self.cache.xpos = self.get_pos(mb_x); |
| 53 | } |
| 54 | fn fill_block(&mut self, val: i8) { |
| 55 | let mut pos = self.cache.xpos; |
| 56 | for _ in 0..4 { |
| 57 | for j in 0..4 { |
| 58 | self.cache.data[pos + j] = val; |
| 59 | } |
| 60 | pos += self.cache.stride; |
| 61 | } |
| 62 | } |
| 63 | fn get_pred16_type(&self, has_top: bool, has_left: bool) -> PredType8x8 { |
| 64 | if !has_top && !has_left { return PredType8x8::DC128; } |
| 65 | let mut im = INTRA_PRED16[self.i16_pred as usize]; |
| 66 | if !has_top { |
| 67 | im = match im { |
| 68 | PredType8x8::Plane | PredType8x8::Ver => PredType8x8::Hor, |
| 69 | PredType8x8::DC => PredType8x8::LeftDC, |
| 70 | _ => im, |
| 71 | }; |
| 72 | } else if !has_left { |
| 73 | im = match im { |
| 74 | PredType8x8::Plane | PredType8x8::Hor => PredType8x8::Ver, |
| 75 | PredType8x8::DC => PredType8x8::TopDC, |
| 76 | _ => im, |
| 77 | }; |
| 78 | } |
| 79 | im |
| 80 | } |
| 81 | fn get_pred8_type(&self, has_top: bool, has_left: bool) -> PredType8x8 { |
| 82 | if !has_top && !has_left { return PredType8x8::DC128; } |
| 83 | let mut im = PredType8x8::DC; |
| 84 | if !has_top { |
| 85 | im = match im { |
| 86 | PredType8x8::Plane | PredType8x8::Ver => PredType8x8::Hor, |
| 87 | PredType8x8::DC => PredType8x8::LeftDC, |
| 88 | _ => im, |
| 89 | }; |
| 90 | } else if !has_left { |
| 91 | im = match im { |
| 92 | PredType8x8::Plane | PredType8x8::Hor => PredType8x8::Ver, |
| 93 | PredType8x8::DC => PredType8x8::TopDC, |
| 94 | _ => im, |
| 95 | }; |
| 96 | } |
| 97 | im |
| 98 | } |
| 99 | fn get_pred4_type(&self, x: usize, y: usize, has_top: bool, has_left: bool) -> PredType4x4 { |
| 100 | let no_up = !has_top && (y == 0); |
| 101 | let no_left = !has_left && (x == 0); |
| 102 | if no_up && no_left { return PredType4x4::DC128; } |
| 103 | |
| 104 | let mut im = INTRA_PRED4[self.cache.data[self.cache.xpos + x + y * self.cache.stride] as usize]; |
| 105 | |
| 106 | if no_up { |
| 107 | im = match im { |
| 108 | PredType4x4::Ver => PredType4x4::Hor, |
| 109 | PredType4x4::DC => PredType4x4::LeftDC, |
| 110 | _ => im, |
| 111 | }; |
| 112 | } else if no_left { |
| 113 | im = match im { |
| 114 | PredType4x4::Hor => PredType4x4::Ver, |
| 115 | PredType4x4::DC => PredType4x4::TopDC, |
| 116 | _ => im, |
| 117 | }; |
| 118 | } |
| 119 | im |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | struct MVInfo { |
| 124 | mv_b: Vec<MV>, |
| 125 | mv_f: Vec<MV>, |
| 126 | w: usize, |
| 127 | h: usize, |
| 128 | has_b: Vec<bool>, |
| 129 | has_f: Vec<bool>, |
| 130 | } |
| 131 | |
| 132 | impl MVInfo { |
| 133 | fn new() -> Self { |
| 134 | Self { mv_b: Vec::new(), mv_f: Vec::new(), w: 0, h: 0, has_b: Vec::new(), has_f: Vec::new() } |
| 135 | } |
| 136 | fn resize(&mut self, mb_w: usize, mb_h: usize) { |
| 137 | self.w = mb_w * 4; |
| 138 | self.h = mb_h * 4; |
| 139 | self.reset(); |
| 140 | } |
| 141 | fn reset(&mut self) { |
| 142 | let size = self.w * self.h; |
| 143 | self.mv_f.truncate(0); |
| 144 | self.mv_f.resize(size, ZERO_MV); |
| 145 | self.mv_b.truncate(0); |
| 146 | self.mv_b.resize(size, ZERO_MV); |
| 147 | self.has_f.truncate(0); |
| 148 | self.has_f.resize(size >> 4, false); |
| 149 | self.has_b.truncate(0); |
| 150 | self.has_b.resize(size >> 4, false); |
| 151 | } |
| 152 | fn fill(&mut self, mb_x: usize, mb_y: usize, fwd: bool, mv: MV) { |
| 153 | let idx = mb_x * 4 + mb_y * 4 * self.w; |
| 154 | let dst = if fwd { &mut self.mv_f[idx..] } else { &mut self.mv_b[idx..] }; |
| 155 | for row in dst.chunks_mut(self.w).take(4) { |
| 156 | row[0] = mv; |
| 157 | row[1] = mv; |
| 158 | row[2] = mv; |
| 159 | row[3] = mv; |
| 160 | } |
| 161 | } |
| 162 | fn fill_part(&mut self, x: usize, y: usize, fwd: bool, bw: usize, bh: usize, mv: MV) { |
| 163 | let idx = x + y * self.w; |
| 164 | let dst = if fwd { &mut self.mv_f[idx..] } else { &mut self.mv_b[idx..] }; |
| 165 | for row in dst.chunks_mut(self.w).take(bh) { |
| 166 | for el in row.iter_mut().take(bw) { |
| 167 | *el = mv; |
| 168 | } |
| 169 | } |
| 170 | } |
| 171 | fn get_mv_by_idx(&self, idx: usize, fwd: bool) -> MV { |
| 172 | if fwd { self.mv_f[idx] } else { self.mv_b[idx] } |
| 173 | } |
| 174 | fn pred_mv(&self, idx: usize, bw: usize, fwd: bool, has_top: bool, has_left: bool, has_tr: bool, has_tl: bool) -> MV { |
| 175 | if !has_top && !has_left { return ZERO_MV; } |
| 176 | let left_mv = if has_left { self.get_mv_by_idx(idx - 1, fwd) } else { ZERO_MV }; |
| 177 | let top_mv = if has_top { self.get_mv_by_idx(idx - self.w, fwd) } else { left_mv }; |
| 178 | let tr_mv; |
| 179 | if has_tr { |
| 180 | tr_mv = self.get_mv_by_idx(idx - self.w + bw, fwd); |
| 181 | } else if has_tl { |
| 182 | tr_mv = self.get_mv_by_idx(idx - self.w - 1, fwd); |
| 183 | } else { |
| 184 | tr_mv = left_mv; |
| 185 | } |
| 186 | MV::pred(left_mv, top_mv, tr_mv) |
| 187 | } |
| 188 | fn pred_mv_part(&self, x: usize, y: usize, bw: usize, fwd: bool, has_top: bool, has_left: bool, has_tr: bool, has_tl: bool) -> MV { |
| 189 | self.pred_mv(x + y * self.w, bw, fwd, has_top, has_left, has_tr, has_tl) |
| 190 | } |
| 191 | fn get_mv(&self, x: usize, y: usize, fwd: bool) -> MV { |
| 192 | let idx = x + y * self.w; |
| 193 | if fwd { self.mv_f[idx] } |
| 194 | else { self.mv_b[idx] } |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | struct SVQ3Decoder { |
| 199 | info: NACodecInfoRef, |
| 200 | width: usize, |
| 201 | height: usize, |
| 202 | ipbs: IPBShuffler, |
| 203 | avg_buf: NAVideoBufferRef<u8>, |
| 204 | imode: IntraModeState, |
| 205 | mvi: MVInfo, |
| 206 | ref_mvi: MVInfo, |
| 207 | mbtypes: Vec<u8>, |
| 208 | ebuf: [u8; 32 * 18], |
| 209 | |
| 210 | coeffs: [[i16; 16]; 25], |
| 211 | coded: [bool; 24], |
| 212 | dc_only: [bool; 24], |
| 213 | |
| 214 | use_hpel: bool, |
| 215 | use_tpel: bool, |
| 216 | no_bframes: bool, |
| 217 | protected: bool, |
| 218 | slice_buf: Vec<u8>, |
| 219 | mb_x: usize, |
| 220 | mb_y: usize, |
| 221 | mb_w: usize, |
| 222 | mb_h: usize, |
| 223 | ts_fwd: u8, |
| 224 | ts_bwd: u8, |
| 225 | pts_base: u64, |
| 226 | ts_base: u8, |
| 227 | } |
| 228 | |
| 229 | const ZIGZAG4: &[usize; 16] = &[ |
| 230 | 0, 1, 4, 8, |
| 231 | 5, 2, 3, 6, |
| 232 | 9, 12, 13, 10, |
| 233 | 7, 11, 14, 15 |
| 234 | ]; |
| 235 | const ALT_SCAN: &[usize; 16] = &[ |
| 236 | 0, 1, 2, 6, |
| 237 | 10, 3, 7, 11, |
| 238 | 4, 8, 5, 9, |
| 239 | 12, 13, 14, 15 |
| 240 | ]; |
| 241 | |
| 242 | const SVQ3_RUNLEVEL: [(usize, i16); 16] = [ |
| 243 | ( 0, 0 ), ( 0, 1 ), ( 1, 1 ), ( 2, 1 ), ( 0, 2 ), ( 3, 1 ), ( 4, 1 ), ( 5, 1 ), |
| 244 | ( 0, 3 ), ( 1, 2 ), ( 2, 2 ), ( 6, 1 ), ( 7, 1 ), ( 8, 1 ), ( 9, 1 ), ( 0, 4 ) |
| 245 | ]; |
| 246 | const SVQ3_RUNLEVEL_ALT: [(usize, i16); 16] = [ |
| 247 | ( 0, 0 ), ( 0, 1 ), ( 1, 1 ), ( 0, 2 ), ( 2, 1 ), ( 0, 3 ), ( 0, 4 ), ( 0, 5 ), |
| 248 | ( 3, 1 ), ( 4, 1 ), ( 1, 2 ), ( 1, 3 ), ( 0, 6 ), ( 0, 7 ), ( 0, 8 ), ( 0, 9 ) |
| 249 | ]; |
| 250 | const RUN_ADD: [i16; 16] = [ 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0 ]; |
| 251 | const RUN_ADD_ALT: [i16; 8] = [ 8, 2, 0, 0, 0, -1, -1, -1 ]; |
| 252 | |
| 253 | fn decode_alt_slice(br: &mut BitReader, blk: &mut [i16; 16], mut idx: usize, end: usize) -> DecoderResult<bool> { |
| 254 | let mut coded = false; |
| 255 | while idx < end { |
| 256 | let val = br.read_code(UintCodeType::Gamma)?; |
| 257 | if val == 0 { break; } |
| 258 | let sign = (val & 1) == 0; |
| 259 | let val = (val + 1) >> 1; |
| 260 | let (run, level) = if (val as usize) < SVQ3_RUNLEVEL.len() { |
| 261 | SVQ3_RUNLEVEL_ALT[val as usize] |
| 262 | } else { |
| 263 | let run = (val & 0x7) as usize; |
| 264 | (run, ((val >> 3) as i16) + RUN_ADD_ALT[(run as usize).min(RUN_ADD_ALT.len() - 1)]) |
| 265 | }; |
| 266 | idx += run; |
| 267 | validate!(idx < end); |
| 268 | blk[ALT_SCAN[idx]] = if sign { -level } else { level }; |
| 269 | coded = true; |
| 270 | idx += 1; |
| 271 | } |
| 272 | if idx == end { |
| 273 | let val = br.read_code(UintCodeType::Gamma)?; |
| 274 | validate!(val == 0); |
| 275 | } |
| 276 | Ok(coded) |
| 277 | } |
| 278 | |
| 279 | fn decode_block(br: &mut BitReader, blk: &mut [i16; 16], start: usize, alt: bool) -> DecoderResult<bool> { |
| 280 | let mut coded = false; |
| 281 | if !alt { |
| 282 | let mut idx = start; |
| 283 | while idx < blk.len() { |
| 284 | let val = br.read_code(UintCodeType::Gamma)?; |
| 285 | if val == 0 { break; } |
| 286 | let sign = (val & 1) == 0; |
| 287 | let val = (val + 1) >> 1; |
| 288 | let (run, level) = if (val as usize) < SVQ3_RUNLEVEL.len() { |
| 289 | SVQ3_RUNLEVEL[val as usize] |
| 290 | } else { |
| 291 | let run = (val & 0xF) as usize; |
| 292 | (run, ((val >> 4) as i16) + RUN_ADD[(run as usize).min(RUN_ADD.len() - 1)]) |
| 293 | }; |
| 294 | idx += run; |
| 295 | validate!(idx < blk.len()); |
| 296 | blk[ZIGZAG4[idx]] = if sign { -level } else { level }; |
| 297 | coded = true; |
| 298 | idx += 1; |
| 299 | } |
| 300 | if idx == blk.len() { |
| 301 | let val = br.read_code(UintCodeType::Gamma)?; |
| 302 | validate!(val == 0); |
| 303 | } |
| 304 | } else { |
| 305 | coded = decode_alt_slice(br, blk, start, 8)?; |
| 306 | coded |= decode_alt_slice(br, blk, 8, 16)?; |
| 307 | } |
| 308 | Ok(coded) |
| 309 | } |
| 310 | |
| 311 | fn decode_chroma_dc(br: &mut BitReader) -> DecoderResult<[i16; 4]> { |
| 312 | let mut idx = 0; |
| 313 | let mut blk = [0i16; 4]; |
| 314 | while idx < blk.len() { |
| 315 | let val = br.read_code(UintCodeType::Gamma)?; |
| 316 | if val == 0 { break; } |
| 317 | let sign = (val & 1) == 0; |
| 318 | let val = (val + 1) >> 1; |
| 319 | let (run, level) = if val < 3 { |
| 320 | (0, val as i16) |
| 321 | } else if val == 3 { |
| 322 | (1, 1) |
| 323 | } else { |
| 324 | ((val & 3) as usize, (((val + 9) >> 2) - (val & 3)) as i16) |
| 325 | }; |
| 326 | idx += run; |
| 327 | validate!(idx < blk.len()); |
| 328 | blk[idx] = if sign { -level } else { level }; |
| 329 | idx += 1; |
| 330 | } |
| 331 | if idx == blk.len() { |
| 332 | let val = br.read_code(UintCodeType::Gamma)?; |
| 333 | validate!(val == 0); |
| 334 | } |
| 335 | Ok(blk) |
| 336 | } |
| 337 | |
| 338 | fn read_mv(br: &mut BitReader) -> DecoderResult<MV> { |
| 339 | let y = br.read_code_signed(IntCodeType::Gamma)? as i16; |
| 340 | let x = br.read_code_signed(IntCodeType::Gamma)? as i16; |
| 341 | Ok(MV{ x, y }) |
| 342 | } |
| 343 | |
| 344 | fn div6(val: i16) -> i16 { |
| 345 | (((((i32::from(val) + (6 << 16)) as u32) / 6) as i32) - (1 << 16)) as i16 |
| 346 | } |
| 347 | |
| 348 | fn scale_mv(mv: MV, trb: u8, trd: u8) -> (MV, MV) { |
| 349 | let trb = i32::from(trb); |
| 350 | let trd = i32::from(trd); |
| 351 | let fx = (i32::from(mv.x * 2) * trb / trd + 1) >> 1; |
| 352 | let fy = (i32::from(mv.y * 2) * trb / trd + 1) >> 1; |
| 353 | let bx = (i32::from(mv.x * 2) * (trb - trd) / trd + 1) >> 1; |
| 354 | let by = (i32::from(mv.y * 2) * (trb - trd) / trd + 1) >> 1; |
| 355 | (MV { x: fx as i16, y: fy as i16 }, MV { x: bx as i16, y: by as i16 }) |
| 356 | } |
| 357 | |
| 358 | fn add_mv(pred_mv: MV, dmv: MV, mc_mode: MCMode) -> (MV, usize, &'static [BlkInterpFunc]) { |
| 359 | match mc_mode { |
| 360 | MCMode::Pixel => { |
| 361 | let x = div6(pred_mv.x + 3); |
| 362 | let y = div6(pred_mv.y + 3); |
| 363 | let mut mv = MV{ x, y } + dmv; |
| 364 | mv.x *= 6; |
| 365 | mv.y *= 6; |
| 366 | (mv, 0, HALFPEL_INTERP_FUNCS) |
| 367 | }, |
| 368 | MCMode::Halfpel => { |
| 369 | let x = div6(pred_mv.x * 2 + 2); |
| 370 | let y = div6(pred_mv.y * 2 + 2); |
| 371 | let mut mv = MV{ x, y } + dmv; |
| 372 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; |
| 373 | mv.x *= 3; |
| 374 | mv.y *= 3; |
| 375 | (mv, mode, HALFPEL_INTERP_FUNCS) |
| 376 | }, |
| 377 | MCMode::Thirdpel => { |
| 378 | let x = (pred_mv.x + 1) >> 1; |
| 379 | let y = (pred_mv.y + 1) >> 1; |
| 380 | let mut mv = MV{ x, y } + dmv; |
| 381 | let mut mx = mv.x % 3; |
| 382 | if mx < 0 { mx += 3; } |
| 383 | let mut my = mv.y % 3; |
| 384 | if my < 0 { my += 3; } |
| 385 | let mode = (mx + my * 3) as usize; |
| 386 | mv.x <<= 1; |
| 387 | mv.y <<= 1; |
| 388 | (mv, mode, THIRDPEL_INTERP_FUNCS) |
| 389 | }, |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | fn copy_block(dst: &mut NASimpleVideoFrame<u8>, src: NAVideoBufferRef<u8>, ebuf: &mut [u8; 32 * 18], comp: usize, |
| 394 | dx: usize, dy: usize, mv_x: i16, mv_y: i16, bw: usize, bh: usize, |
| 395 | preborder: usize, postborder: usize, |
| 396 | mode: usize, interp: &[BlkInterpFunc]) |
| 397 | { |
| 398 | let pre = if mode != 0 { preborder as isize } else { 0 }; |
| 399 | let post = if mode != 0 { postborder as isize } else { 0 }; |
| 400 | let (w, h) = src.get_dimensions(comp); |
| 401 | let sx = (dx as isize) + (mv_x as isize); |
| 402 | let sy = (dy as isize) + (mv_y as isize); |
| 403 | |
| 404 | if (sx - pre < 0) || (sx + (bw as isize) + post > (w as isize)) || |
| 405 | (sy - pre < 0) || (sy + (bh as isize) + post > (h as isize)) { |
| 406 | let ebuf_stride: usize = 32; |
| 407 | |
| 408 | let dstride = dst.stride[comp]; |
| 409 | let doff = dst.offset[comp]; |
| 410 | let edge = (pre + post) as usize; |
| 411 | edge_emu(&src, sx - pre, sy - pre, bw + edge, bh + edge, |
| 412 | ebuf, ebuf_stride, comp, 4); |
| 413 | (interp[mode])(&mut dst.data[doff + dx + dy * dstride..], dstride, |
| 414 | ebuf, ebuf_stride, bw, bh); |
| 415 | } else { |
| 416 | let sstride = src.get_stride(comp); |
| 417 | let soff = src.get_offset(comp); |
| 418 | let sdta = src.get_data(); |
| 419 | let sbuf: &[u8] = sdta.as_slice(); |
| 420 | let dstride = dst.stride[comp]; |
| 421 | let doff = dst.offset[comp]; |
| 422 | let saddr = soff + ((sx - pre) as usize) + ((sy - pre) as usize) * sstride; |
| 423 | (interp[mode])(&mut dst.data[doff + dx + dy * dstride..], dstride, |
| 424 | &sbuf[saddr..], sstride, bw, bh); |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | fn mc_part(dframe: &mut NASimpleVideoFrame<u8>, src: NAVideoBufferRef<u8>, ebuf: &mut [u8; 32 * 18], xoff: usize, yoff: usize, bw: usize, bh: usize, mv: MV, mode: usize, ifuncs: &[BlkInterpFunc]) { |
| 429 | let mx = div6(mv.x); |
| 430 | let my = div6(mv.y); |
| 431 | let cmx = (mx + if mx < 0 { 1 } else { 0 }) >> 1; |
| 432 | let cmy = (my + if my < 0 { 1 } else { 0 }) >> 1; |
| 433 | let post = if mode != 0 { 1 } else { 0 }; |
| 434 | |
| 435 | copy_block(dframe, src.clone(), ebuf, 0, xoff, yoff, mx, my, bw * 4, bh * 4, 0, post, mode, ifuncs); |
| 436 | copy_block(dframe, src.clone(), ebuf, 1, xoff / 2, yoff / 2, cmx, cmy, bw * 2, bh * 2, 0, post, mode, ifuncs); |
| 437 | copy_block(dframe, src.clone(), ebuf, 2, xoff / 2, yoff / 2, cmx, cmy, bw * 2, bh * 2, 0, post, mode, ifuncs); |
| 438 | } |
| 439 | |
| 440 | impl SVQ3Decoder { |
| 441 | fn new() -> Self { |
| 442 | let tmp_vinfo = NAVideoInfo::new(16, 16, false, YUV420_FORMAT); |
| 443 | let vt = alloc_video_buffer(tmp_vinfo, 4).unwrap(); |
| 444 | let vb = vt.get_vbuf(); |
| 445 | let avg_buf = vb.unwrap(); |
| 446 | |
| 447 | Self { |
| 448 | info: NACodecInfoRef::default(), |
| 449 | width: 0, |
| 450 | height: 0, |
| 451 | ipbs: IPBShuffler::new(), |
| 452 | avg_buf, |
| 453 | imode: IntraModeState::new(0), |
| 454 | mvi: MVInfo::new(), |
| 455 | ref_mvi: MVInfo::new(), |
| 456 | mbtypes: Vec::new(), |
| 457 | ebuf: [0; 32 * 18], |
| 458 | |
| 459 | coeffs: [[0; 16]; 25], |
| 460 | coded: [false; 24], |
| 461 | dc_only: [false; 24], |
| 462 | |
| 463 | use_hpel: false, |
| 464 | use_tpel: false, |
| 465 | no_bframes: false, |
| 466 | protected: false, |
| 467 | slice_buf: Vec::new(), |
| 468 | mb_x: 0, |
| 469 | mb_y: 0, |
| 470 | mb_w: 0, |
| 471 | mb_h: 0, |
| 472 | ts_fwd: 0, |
| 473 | ts_bwd: 0, |
| 474 | pts_base: 0, |
| 475 | ts_base: 0, |
| 476 | } |
| 477 | } |
| 478 | fn parse_sequence_header(&mut self, src: &[u8]) -> DecoderResult<()> { |
| 479 | let mut br = BitReader::new(src, BitReaderMode::BE); |
| 480 | let fcode = br.read(3)? as usize; |
| 481 | let (w, h) = if fcode < FRAME_SIZES.len() { |
| 482 | FRAME_SIZES[fcode] |
| 483 | } else { |
| 484 | let w = br.read(12)? as usize; |
| 485 | let h = br.read(12)? as usize; |
| 486 | validate!(w >= 16 && h >= 16); |
| 487 | (w, h) |
| 488 | }; |
| 489 | self.width = w; |
| 490 | self.height = h; |
| 491 | self.use_hpel = br.read_bool()?; |
| 492 | self.use_tpel = br.read_bool()?; |
| 493 | br.skip(1)?; |
| 494 | br.skip(1)?; |
| 495 | br.skip(1)?; |
| 496 | br.skip(1)?; |
| 497 | self.no_bframes = br.read_bool()?; |
| 498 | br.skip(1)?; |
| 499 | while br.read_bool()? { |
| 500 | br.skip(8)?; |
| 501 | } |
| 502 | self.protected = br.read_bool()?; |
| 503 | //println!(" seq: {}x{} hpel {} tpel {} nob {}", w, h, self.use_hpel, self.use_tpel, self.no_bframes); |
| 504 | if self.protected { |
| 505 | unimplemented!(); |
| 506 | } |
| 507 | Ok(()) |
| 508 | } |
| 509 | fn prepare_slice_buffer(&mut self, src: &[u8]) -> DecoderResult<usize> { |
| 510 | let llen = ((src[0] >> 5) & 3) as usize; |
| 511 | validate!(llen != 0); |
| 512 | validate!(src.len() > llen); |
| 513 | let length = match llen { |
| 514 | 1 => src[1] as usize, |
| 515 | 2 => (src[1] as usize) * 256 + (src[2] as usize), |
| 516 | 3 => ((src[1] as usize) << 16) + ((src[2] as usize) << 8) + (src[3] as usize), |
| 517 | _ => unreachable!(), |
| 518 | }; |
| 519 | let slice_len = length + llen + 1; |
| 520 | validate!(src.len() >= slice_len); |
| 521 | self.slice_buf.truncate(0); |
| 522 | if llen > 1 { |
| 523 | self.slice_buf.extend_from_slice(&src[slice_len - llen + 1..][..llen - 1]); |
| 524 | } |
| 525 | self.slice_buf.extend_from_slice(&src[llen + 1..][..slice_len - llen - 1]); |
| 526 | // todo unscramble |
| 527 | Ok(slice_len) |
| 528 | } |
| 529 | fn parse_slice_header(&self, br: &mut BitReader, slice_mode: u8) -> DecoderResult<SVQ3Header> { |
| 530 | let ftype_id = br.read_code(UintCodeType::Gamma)? as usize; |
| 531 | validate!(ftype_id < FRAME_TYPES.len()); |
| 532 | let ftype = FRAME_TYPES[ftype_id]; |
| 533 | if self.no_bframes { |
| 534 | validate!(ftype != FrameType::B); |
| 535 | } |
| 536 | |
| 537 | if slice_mode == 1 { |
| 538 | br.skip(1)?; |
| 539 | } else { |
| 540 | let mbs = self.mb_w * self.mb_h; |
| 541 | let mb_bits = if mbs < 64 { 6 } else { 32 - (mbs - 1).leading_zeros() } as u8; |
| 542 | let _offset = br.read(mb_bits)?; |
| 543 | println!("slice offset {}", _offset); |
| 544 | } |
| 545 | let ts = br.read(8)? as u8; |
| 546 | let quant = br.read(5)? as u8; |
| 547 | let dquant = br.read_bool()?; |
| 548 | br.skip(1)?; |
| 549 | if self.protected { |
| 550 | br.skip(1)?; |
| 551 | } |
| 552 | br.skip(1)?; |
| 553 | br.skip(2)?; |
| 554 | while br.read_bool()? { |
| 555 | br.skip(8)?; |
| 556 | } |
| 557 | |
| 558 | Ok(SVQ3Header { ftype, ts, quant, dquant }) |
| 559 | } |
| 560 | fn decode_intra_block(&mut self, br: &mut BitReader, mb_type: usize, sstate: &mut SState, hdr: &SVQ3Header) -> DecoderResult<()> { |
| 561 | const INTRA_CBP: [u8; 48] = [ |
| 562 | 47, 31, 15, 0, 23, 27, 29, 30, 7, 11, 13, 14, 39, 43, 45, 46, |
| 563 | 16, 3, 5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1, 2, 4, |
| 564 | 8, 17, 18, 20, 24, 6, 9, 22, 25, 32, 33, 34, 36, 40, 38, 41 |
| 565 | ]; |
| 566 | let is_4x4 = mb_type == 8 || mb_type == 33; |
| 567 | let cbp; |
| 568 | if !is_4x4 { |
| 569 | let angle = SVQ3_INTRA_ANGLE[(mb_type - 9) & 3]; |
| 570 | cbp = SVQ3_INTRA_CBP[(mb_type - 9) / 4]; |
| 571 | self.imode.i16_pred = angle; |
| 572 | self.imode.fill_block(2); |
| 573 | } else if mb_type == 8 { |
| 574 | for i in 0..8 { |
| 575 | let idx = br.read_code(UintCodeType::Gamma)? as usize; |
| 576 | validate!(idx < SVQ3_INTRA4_PAIRS.len()); |
| 577 | let mut iidx = self.imode.cache.xpos; |
| 578 | if (i & 1) != 0 { iidx += self.imode.cache.stride; } |
| 579 | if (i & 2) != 0 { iidx += 2; } |
| 580 | if (i & 4) != 0 { iidx += self.imode.cache.stride * 2; } |
| 581 | |
| 582 | let t0 = self.imode.cache.data[iidx - self.imode.cache.stride]; |
| 583 | let t1 = self.imode.cache.data[iidx + 1 - self.imode.cache.stride]; |
| 584 | let l0 = self.imode.cache.data[iidx - 1]; |
| 585 | |
| 586 | let p = SVQ3_INTRA4_PAIRS[idx]; |
| 587 | self.imode.cache.data[iidx] = SVQ3_INTRA4_CTX_PRED[(t0 + 1) as usize][(l0 + 1) as usize][p[0] as usize]; |
| 588 | let l1 = self.imode.cache.data[iidx]; |
| 589 | self.imode.cache.data[iidx + 1] = SVQ3_INTRA4_CTX_PRED[(t1 + 1) as usize][(l1 + 1) as usize][p[1] as usize]; |
| 590 | validate!(self.imode.cache.data[iidx] != -1); |
| 591 | validate!(self.imode.cache.data[iidx + 1] != -1); |
| 592 | } |
| 593 | let idx = br.read_code(UintCodeType::Gamma)? as usize; |
| 594 | validate!(idx < INTRA_CBP.len()); |
| 595 | cbp = INTRA_CBP[idx]; |
| 596 | self.imode.i16_pred = 0; |
| 597 | } else { |
| 598 | self.imode.fill_block(2); |
| 599 | cbp = 0; |
| 600 | } |
| 601 | |
| 602 | if !is_4x4 || (hdr.dquant && hdr.ftype != FrameType::I && cbp != 0) { |
| 603 | let dq = br.read_code_signed(IntCodeType::Gamma)?; |
| 604 | let new_q = i32::from(sstate.q) + dq; |
| 605 | validate!(new_q >= 0 && new_q < 32); |
| 606 | sstate.q = new_q as u8; |
| 607 | } |
| 608 | if !is_4x4 { |
| 609 | decode_block(br, &mut self.coeffs[24], 0, false)?; |
| 610 | idct_dc_coeffs(&mut self.coeffs[24], sstate.q); |
| 611 | } |
| 612 | let start = if is_4x4 { 0 } else { 1 }; |
| 613 | let alt = sstate.q < 24 && is_4x4; |
| 614 | for sb in 0..4 { |
| 615 | if ((cbp >> sb) & 1) == 0 { continue; } |
| 616 | for b in 0..4 { |
| 617 | let blk_idx = if is_4x4 { |
| 618 | (sb & 1) * 2 + (sb >> 1) * 8 + (b & 1) + (b >> 1) * 4 |
| 619 | } else { |
| 620 | sb * 4 + b |
| 621 | }; |
| 622 | self.coded[blk_idx] = decode_block(br, &mut self.coeffs[blk_idx], start, alt)?; |
| 623 | if is_4x4 && self.coded[blk_idx] { |
| 624 | idct_dc_coeffs(&mut self.coeffs[blk_idx], sstate.q); |
| 625 | } |
| 626 | } |
| 627 | } |
| 628 | if !is_4x4 { |
| 629 | for blk_idx in 0..16 { |
| 630 | self.coeffs[blk_idx][0] = self.coeffs[24][blk_idx]; |
| 631 | self.dc_only[blk_idx] = self.coeffs[blk_idx][0] != 0; |
| 632 | idct(&mut self.coeffs[blk_idx], sstate.q, false); |
| 633 | } |
| 634 | } |
| 635 | if (cbp & 0x30) != 0 { |
| 636 | let mut u_dc = decode_chroma_dc(br)?; |
| 637 | let mut v_dc = decode_chroma_dc(br)?; |
| 638 | chroma_transform(&mut u_dc); |
| 639 | chroma_transform(&mut v_dc); |
| 640 | |
| 641 | let cdcs = [u_dc, v_dc]; |
| 642 | if (cbp & 0x20) != 0 { |
| 643 | for comp in 0..2 { |
| 644 | for i in 0..4 { |
| 645 | let blk_idx = 16 + comp * 4 + i; |
| 646 | self.coded[blk_idx] = decode_block(br, &mut self.coeffs[blk_idx], 1, false)?; |
| 647 | } |
| 648 | } |
| 649 | } |
| 650 | for comp in 0..2 { |
| 651 | for i in 0..4 { |
| 652 | let blk_idx = 16 + comp * 4 + i; |
| 653 | self.coeffs[blk_idx][0] = cdcs[comp][i]; |
| 654 | self.dc_only[blk_idx] = cdcs[comp][i] != 0; |
| 655 | idct(&mut self.coeffs[blk_idx], SVQ3_CHROMA_QUANT[sstate.q as usize], true); |
| 656 | } |
| 657 | } |
| 658 | } |
| 659 | |
| 660 | Ok(()) |
| 661 | } |
| 662 | fn do_mc_p(&mut self, br: &mut BitReader, mb_type: usize, sstate: &mut SState, dframe: &mut NASimpleVideoFrame<u8>) -> DecoderResult<()> { |
| 663 | if mb_type == 0 { |
| 664 | self.mvi.fill(self.mb_x, self.mb_y, true, ZERO_MV); |
| 665 | if let Some(ref_frm) = self.ipbs.get_lastref() { |
| 666 | mc_part(dframe, ref_frm, &mut self.ebuf, self.mb_x * 16, self.mb_y * 16, 4, 4, ZERO_MV, 0, HALFPEL_INTERP_FUNCS); |
| 667 | } |
| 668 | return Ok(()); |
| 669 | } |
| 670 | let mc_mode = if self.use_tpel && br.read_bool()? != self.use_hpel { |
| 671 | MCMode::Thirdpel |
| 672 | } else if self.use_hpel && br.read_bool()? != self.use_tpel { |
| 673 | MCMode::Halfpel |
| 674 | } else { |
| 675 | MCMode::Pixel |
| 676 | }; |
| 677 | let (bw, bh) = SVQ3_PART_SIZES[mb_type as usize]; |
| 678 | let bw = (bw >> 2) as usize; |
| 679 | let bh = (bh >> 2) as usize; |
| 680 | |
| 681 | let mut avail = [false; 6 * 5]; |
| 682 | avail[0] = sstate.has_tl; |
| 683 | if sstate.has_top { |
| 684 | avail[1] = true; |
| 685 | avail[2] = true; |
| 686 | avail[3] = true; |
| 687 | avail[4] = true; |
| 688 | } |
| 689 | avail[5] = sstate.has_tr; |
| 690 | if sstate.has_left { |
| 691 | avail[6 * 1] = true; |
| 692 | avail[6 * 2] = true; |
| 693 | avail[6 * 3] = true; |
| 694 | avail[6 * 4] = true; |
| 695 | } |
| 696 | |
| 697 | let dir = true; //forward |
| 698 | for y in (0..16).step_by(bh * 4) { |
| 699 | for x in (0..16).step_by(bw * 4) { |
| 700 | let mv_x = x >> 2; |
| 701 | let mv_y = y >> 2; |
| 702 | let xpos = self.mb_x * 16 + x; |
| 703 | let ypos = self.mb_y * 16 + y; |
| 704 | |
| 705 | let avail_idx = mv_x + 1 + (mv_y + 1) * 6; |
| 706 | let mut pred_mv = self.mvi.pred_mv_part(self.mb_x * 4 + mv_x, self.mb_y * 4 + mv_y, bw, dir, avail[avail_idx - 6], avail[avail_idx - 1], avail[avail_idx - 6 + bw], avail[avail_idx - 6 - 1]); |
| 707 | pred_mv.x = pred_mv.x.max(-6 * (xpos as i16)).min(6 * ((((self.width + 15) & !15) - xpos - bw * 4) as i16)); |
| 708 | pred_mv.y = pred_mv.y.max(-6 * (ypos as i16)).min(6 * ((((self.height + 15) & !15) - ypos - bh * 4) as i16)); |
| 709 | |
| 710 | for j in 0..bh { |
| 711 | for i in 0..bw { |
| 712 | avail[avail_idx + i + j * 6] = true; |
| 713 | } |
| 714 | } |
| 715 | |
| 716 | let dmv = read_mv(br)?; |
| 717 | let (mv, mode, ifuncs) = add_mv(pred_mv, dmv, mc_mode); |
| 718 | self.mvi.fill_part(self.mb_x * 4 + mv_x, self.mb_y * 4 + mv_y, dir, bw, bh, mv); |
| 719 | if let Some(ref_frm) = self.ipbs.get_lastref() { |
| 720 | mc_part(dframe, ref_frm, &mut self.ebuf, xpos, ypos, bw, bh, mv, mode, ifuncs); |
| 721 | } |
| 722 | } |
| 723 | } |
| 724 | Ok(()) |
| 725 | } |
| 726 | fn do_mc_direct(&mut self, sstate: &mut SState, dframe: &mut NASimpleVideoFrame<u8>) -> DecoderResult<()> { |
| 727 | let mut ref_mbt = self.mbtypes[self.mb_x + self.mb_y * self.mb_w]; |
| 728 | if ref_mbt >= 8 { |
| 729 | ref_mbt = 0; |
| 730 | } |
| 731 | let (bw, bh) = SVQ3_PART_SIZES[ref_mbt as usize]; |
| 732 | let bw = (bw >> 2) as usize; |
| 733 | let bh = (bh >> 2) as usize; |
| 734 | let mut aframe = NASimpleVideoFrame::from_video_buf(&mut self.avg_buf).unwrap(); |
| 735 | if let (Some(fwd_ref), Some(bwd_ref)) = (self.ipbs.get_b_fwdref(), self.ipbs.get_b_bwdref()) { |
| 736 | for y in (0..16).step_by(bh * 4) { |
| 737 | for x in (0..16).step_by(bw * 4) { |
| 738 | let mv = self.ref_mvi.get_mv(self.mb_x * 4 + x / 4, self.mb_y * 4 + y / 4, true); |
| 739 | let (fwd_pred, bwd_pred) = scale_mv(mv, sstate.trb, sstate.trd); |
| 740 | let (fmv, fmode, _) = add_mv(fwd_pred, ZERO_MV, MCMode::Halfpel); |
| 741 | let (bmv, bmode, _) = add_mv(bwd_pred, ZERO_MV, MCMode::Halfpel); |
| 742 | self.mvi.fill_part(self.mb_x * 4 + x / 4, self.mb_y * 4 + y / 4, true, bw, bh, fmv); |
| 743 | self.mvi.fill_part(self.mb_x * 4 + x / 4, self.mb_y * 4 + y / 4, false, bw, bh, bmv); |
| 744 | |
| 745 | let xoff = self.mb_x * 16 + x; |
| 746 | let yoff = self.mb_y * 16 + y; |
| 747 | mc_part(dframe, fwd_ref.clone(), &mut self.ebuf, xoff, yoff, bw, bh, fmv, fmode, HALFPEL_INTERP_FUNCS); |
| 748 | |
| 749 | let amv = MV { x: bmv.x + (xoff as i16) * 6, y: bmv.y + (yoff as i16) * 6 }; |
| 750 | mc_part(&mut aframe, bwd_ref.clone(), &mut self.ebuf, 0, 0, bw, bh, amv, bmode, HALFPEL_INTERP_FUNCS); |
| 751 | |
| 752 | let dstride = dframe.stride[0]; |
| 753 | let dst = &mut dframe.data[dframe.offset[0] + xoff + yoff * dstride..]; |
| 754 | let src = &aframe.data; |
| 755 | let sstride = aframe.stride[0]; |
| 756 | avg(dst, dstride, src, sstride, bw * 4, bh * 4); |
| 757 | |
| 758 | let dstride = dframe.stride[1]; |
| 759 | let dst = &mut dframe.data[dframe.offset[1] + xoff / 2 + yoff / 2 * dstride..]; |
| 760 | let sstride = aframe.stride[1]; |
| 761 | avg(dst, dstride, &src[aframe.offset[1]..], sstride, bw * 2, bh * 2); |
| 762 | |
| 763 | let dstride = dframe.stride[2]; |
| 764 | let dst = &mut dframe.data[dframe.offset[2] + xoff / 2 + yoff / 2 * dstride..]; |
| 765 | let sstride = aframe.stride[2]; |
| 766 | avg(dst, dstride, &src[aframe.offset[2]..], sstride, bw * 2, bh * 2); |
| 767 | } |
| 768 | } |
| 769 | } |
| 770 | Ok(()) |
| 771 | } |
| 772 | fn do_mc_b(&mut self, br: &mut BitReader, mb_type: usize, sstate: &mut SState, dframe: &mut NASimpleVideoFrame<u8>) -> DecoderResult<()> { |
| 773 | let mc_mode = if self.use_tpel && br.read_bool()? != self.use_hpel { |
| 774 | MCMode::Thirdpel |
| 775 | } else if self.use_hpel && br.read_bool()? != self.use_tpel { |
| 776 | MCMode::Halfpel |
| 777 | } else { |
| 778 | MCMode::Pixel |
| 779 | }; |
| 780 | let fwd_pred = self.mvi.pred_mv_part(self.mb_x * 4, self.mb_y * 4, 4, true, sstate.has_top, sstate.has_left, sstate.has_tr, sstate.has_tl); |
| 781 | let bwd_pred = self.mvi.pred_mv_part(self.mb_x * 4, self.mb_y * 4, 4, false, sstate.has_top, sstate.has_left, sstate.has_tr, sstate.has_tl); |
| 782 | let (fdmv, bdmv) = match mb_type { |
| 783 | 1 => { |
| 784 | let dmv = read_mv(br)?; |
| 785 | (dmv, ZERO_MV) |
| 786 | }, |
| 787 | 2 => { |
| 788 | let dmv = read_mv(br)?; |
| 789 | (ZERO_MV, dmv) |
| 790 | }, |
| 791 | 3 => { |
| 792 | let fdmv = read_mv(br)?; |
| 793 | let bdmv = read_mv(br)?; |
| 794 | (fdmv, bdmv) |
| 795 | }, |
| 796 | _ => unreachable!(), |
| 797 | }; |
| 798 | let (fmv, fmode, ifuncs) = add_mv(fwd_pred, fdmv, mc_mode); |
| 799 | let (bmv, bmode, _) = add_mv(bwd_pred, bdmv, mc_mode); |
| 800 | let has_fwd = mb_type != 2; |
| 801 | let has_bwd = mb_type != 1; |
| 802 | if has_fwd { |
| 803 | self.mvi.fill(self.mb_x, self.mb_y, true, fmv); |
| 804 | } |
| 805 | if has_bwd { |
| 806 | self.mvi.fill(self.mb_x, self.mb_y, false, bmv); |
| 807 | } |
| 808 | let refframe = if has_fwd { self.ipbs.get_b_fwdref() } else { self.ipbs.get_b_bwdref() }; |
| 809 | if let Some(ref_buf) = refframe { |
| 810 | let (mv, mode) = if has_fwd { (fmv, fmode) } else { (bmv, bmode) }; |
| 811 | mc_part(dframe, ref_buf, &mut self.ebuf, self.mb_x * 16, self.mb_y * 16, 4, 4, mv, mode, ifuncs); |
| 812 | } |
| 813 | if let (Some(bwd_ref), true, true) = (self.ipbs.get_b_bwdref(), has_fwd, has_bwd) { |
| 814 | let mut aframe = NASimpleVideoFrame::from_video_buf(&mut self.avg_buf).unwrap(); |
| 815 | let amv = MV { x: bmv.x + (self.mb_x as i16) * 16 * 6, y: bmv.y + (self.mb_y as i16) * 16 * 6 }; |
| 816 | mc_part(&mut aframe, bwd_ref.clone(), &mut self.ebuf, 0, 0, 4, 4, amv, bmode, ifuncs); |
| 817 | |
| 818 | let dstride = dframe.stride[0]; |
| 819 | let dst = &mut dframe.data[dframe.offset[0] + self.mb_x * 16 + self.mb_y * 16 * dstride..]; |
| 820 | let src = self.avg_buf.get_data(); |
| 821 | let sstride = self.avg_buf.get_stride(0); |
| 822 | avg(dst, dstride, src, sstride, 16, 16); |
| 823 | |
| 824 | let dstride = dframe.stride[1]; |
| 825 | let dst = &mut dframe.data[dframe.offset[1] + self.mb_x * 8 + self.mb_y * 8 * dstride..]; |
| 826 | let sstride = self.avg_buf.get_stride(1); |
| 827 | avg(dst, dstride, &src[self.avg_buf.get_offset(1)..], sstride, 8, 8); |
| 828 | |
| 829 | let dstride = dframe.stride[2]; |
| 830 | let dst = &mut dframe.data[dframe.offset[2] + self.mb_x * 8 + self.mb_y * 8 * dstride..]; |
| 831 | let sstride = self.avg_buf.get_stride(2); |
| 832 | avg(dst, dstride, &src[self.avg_buf.get_offset(2)..], sstride, 8, 8); |
| 833 | } |
| 834 | Ok(()) |
| 835 | } |
| 836 | fn decode_inter_block(&mut self, br: &mut BitReader, mb_type: usize, sstate: &mut SState, hdr: &SVQ3Header, dframe: &mut NASimpleVideoFrame<u8>) -> DecoderResult<()> { |
| 837 | const INTER_CBP: [u8; 48] = [ |
| 838 | 0, 16, 1, 2, 4, 8, 32, 3, 5, 10, 12, 15, 47, 7, 11, 13, |
| 839 | 14, 6, 9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46, |
| 840 | 17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41 |
| 841 | ]; |
| 842 | if hdr.ftype == FrameType::P { |
| 843 | self.do_mc_p(br, mb_type, sstate, dframe)?; |
| 844 | if mb_type == 0 { |
| 845 | return Ok(()); |
| 846 | } |
| 847 | } else if mb_type != 0 { |
| 848 | self.do_mc_b(br, mb_type, sstate, dframe)?; |
| 849 | } else { |
| 850 | self.do_mc_direct(sstate, dframe)?; |
| 851 | } |
| 852 | |
| 853 | let idx = br.read_code(UintCodeType::Gamma)? as usize; |
| 854 | validate!(idx < INTER_CBP.len()); |
| 855 | let cbp = INTER_CBP[idx]; |
| 856 | |
| 857 | if hdr.dquant && cbp != 0 { |
| 858 | let dq = br.read_code_signed(IntCodeType::Gamma)?; |
| 859 | let new_q = i32::from(sstate.q) + dq; |
| 860 | validate!(new_q >= 0 && new_q < 32); |
| 861 | sstate.q = new_q as u8; |
| 862 | } |
| 863 | for sb in 0..4 { |
| 864 | if ((cbp >> sb) & 1) == 0 { continue; } |
| 865 | for b in 0..4 { |
| 866 | let blk_idx = (sb & 1) * 2 + (sb >> 1) * 8 + (b & 1) + (b >> 1) * 4; |
| 867 | self.coded[blk_idx] = decode_block(br, &mut self.coeffs[blk_idx], 0, false)?; |
| 868 | if self.coded[blk_idx] { |
| 869 | idct_dc_coeffs(&mut self.coeffs[blk_idx], sstate.q); |
| 870 | } |
| 871 | } |
| 872 | } |
| 873 | if (cbp & 0x30) != 0 { |
| 874 | let mut u_dc = decode_chroma_dc(br)?; |
| 875 | let mut v_dc = decode_chroma_dc(br)?; |
| 876 | chroma_transform(&mut u_dc); |
| 877 | chroma_transform(&mut v_dc); |
| 878 | |
| 879 | let cdcs = [u_dc, v_dc]; |
| 880 | if (cbp & 0x20) != 0 { |
| 881 | for comp in 0..2 { |
| 882 | for i in 0..4 { |
| 883 | let blk_idx = 16 + comp * 4 + i; |
| 884 | self.coded[blk_idx] = decode_block(br, &mut self.coeffs[blk_idx], 1, false)?; |
| 885 | } |
| 886 | } |
| 887 | } |
| 888 | for comp in 0..2 { |
| 889 | for i in 0..4 { |
| 890 | let blk_idx = 16 + comp * 4 + i; |
| 891 | self.coeffs[blk_idx][0] = cdcs[comp][i]; |
| 892 | self.dc_only[blk_idx] = cdcs[comp][i] != 0; |
| 893 | idct(&mut self.coeffs[blk_idx], SVQ3_CHROMA_QUANT[sstate.q as usize], true); |
| 894 | } |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | Ok(()) |
| 899 | } |
| 900 | fn put_intra4x4(&self, dframe: &mut NASimpleVideoFrame<u8>, sstate: &SState) { |
| 901 | let dst = &mut dframe.data[0..]; |
| 902 | let stride = dframe.stride[0]; |
| 903 | let mut doff = dframe.offset[0] + self.mb_x * 16 + self.mb_y * 16 * stride; |
| 904 | for y in 0..4 { |
| 905 | for x in 0..4 { |
| 906 | let im = self.imode.get_pred4_type(x, y, sstate.has_top, sstate.has_left); |
| 907 | let noright = (self.mb_x == self.mb_w - 1) && (x == 3); |
| 908 | let has_top = sstate.has_top || (y > 0); |
| 909 | let topright: [u8; 4] = if (noright && sstate.has_top && y == 0) || (x == 3 && y > 0) { |
| 910 | let i = doff + x * 4 - stride; |
| 911 | [dst[i + 3], dst[i + 3], dst[i + 3], dst[i + 3]] |
| 912 | } else if has_top { |
| 913 | let i = doff + x * 4 - stride; |
| 914 | [dst[i + 4], dst[i + 5], dst[i + 6], dst[i + 7]] |
| 915 | } else { |
| 916 | [0; 4] |
| 917 | }; |
| 918 | IPRED_FUNCS4X4[im as usize](dst, doff + x * 4, stride, &topright); |
| 919 | let blk_idx = x + y * 4; |
| 920 | if self.dc_only[blk_idx] || self.coded[blk_idx] { |
| 921 | add_coeffs(dst, doff + x * 4, stride, &self.coeffs[blk_idx]); |
| 922 | } |
| 923 | } |
| 924 | doff += stride * 4; |
| 925 | } |
| 926 | let im8 = self.imode.get_pred8_type(sstate.has_top, sstate.has_left); |
| 927 | for comp in 1..3 { |
| 928 | let stride = dframe.stride[comp]; |
| 929 | let mut doff = dframe.offset[comp] + self.mb_x * 8 + self.mb_y * 8 * stride; |
| 930 | IPRED_FUNCS8X8[im8 as usize](dst, doff, stride); |
| 931 | for y in 0..2 { |
| 932 | for x in 0..2 { |
| 933 | let blk_idx = 16 + (comp - 1) * 4 + x + y * 2; |
| 934 | if self.dc_only[blk_idx] || self.coded[blk_idx] { |
| 935 | add_coeffs(dst, doff + x * 4, stride, &self.coeffs[blk_idx]); |
| 936 | } |
| 937 | } |
| 938 | doff += stride * 4; |
| 939 | } |
| 940 | } |
| 941 | } |
| 942 | fn put_residue(&self, dframe: &mut NASimpleVideoFrame<u8>) { |
| 943 | let dst = &mut dframe.data[0..]; |
| 944 | let stride = dframe.stride[0]; |
| 945 | let mut doff = dframe.offset[0] + self.mb_x * 16 + self.mb_y * 16 * stride; |
| 946 | for y in 0..4 { |
| 947 | for x in 0..4 { |
| 948 | let blk_idx = x + y * 4; |
| 949 | if self.dc_only[blk_idx] || self.coded[blk_idx] { |
| 950 | add_coeffs(dst, doff + x * 4, stride, &self.coeffs[blk_idx]); |
| 951 | } |
| 952 | } |
| 953 | doff += stride * 4; |
| 954 | } |
| 955 | for comp in 1..3 { |
| 956 | let stride = dframe.stride[comp]; |
| 957 | let mut doff = dframe.offset[comp] + self.mb_x * 8 + self.mb_y * 8 * stride; |
| 958 | for y in 0..2 { |
| 959 | for x in 0..2 { |
| 960 | let blk_idx = 16 + (comp - 1) * 4 + x + y * 2; |
| 961 | if self.dc_only[blk_idx] || self.coded[blk_idx] { |
| 962 | add_coeffs(dst, doff + x * 4, stride, &self.coeffs[blk_idx]); |
| 963 | } |
| 964 | } |
| 965 | doff += stride * 4; |
| 966 | } |
| 967 | } |
| 968 | } |
| 969 | fn decode_slice(&mut self, br: &mut BitReader, hdr: &SVQ3Header, dframe: &mut NASimpleVideoFrame<u8>) -> DecoderResult<()> { |
| 970 | let mut mb_idx = self.mb_x + self.mb_y * self.mb_w; |
| 971 | let mbs = self.mb_w * self.mb_h; |
| 972 | let mut sstate = SState::default(); |
| 973 | sstate.q = hdr.quant; |
| 974 | if hdr.ftype == FrameType::B { |
| 975 | sstate.trd = self.ts_bwd.wrapping_sub(self.ts_fwd).max(1); |
| 976 | sstate.trb = hdr.ts.wrapping_sub(self.ts_fwd).max(1); |
| 977 | } |
| 978 | let start_idx = mb_idx; |
| 979 | self.imode.reset(); |
| 980 | while mb_idx < mbs { |
| 981 | sstate.has_top = mb_idx - start_idx >= self.mb_w; |
| 982 | if sstate.has_top { |
| 983 | sstate.has_tl = sstate.has_left && mb_idx - start_idx + 1 > self.mb_w; |
| 984 | sstate.has_tr = self.mb_x + 1 < self.mb_w && mb_idx - start_idx >= self.mb_w - 1; |
| 985 | } else { |
| 986 | sstate.has_tl = false; |
| 987 | sstate.has_tr = false; |
| 988 | } |
| 989 | |
| 990 | if br.left() < 8 { |
| 991 | if (br.tell() & 7) == 0 && br.peek(8) == 0 { |
| 992 | return Ok(()); |
| 993 | } |
| 994 | } |
| 995 | let mut mb_type = br.read_code(UintCodeType::Gamma)? as usize; |
| 996 | if hdr.ftype == FrameType::I { |
| 997 | mb_type += 8; |
| 998 | } |
| 999 | if hdr.ftype == FrameType::B && mb_type >= 4 { |
| 1000 | mb_type += 4; |
| 1001 | } |
| 1002 | validate!(mb_type <= 33); |
| 1003 | self.imode.set_mb_x(self.mb_x); |
| 1004 | self.coeffs = [[0; 16]; 25]; |
| 1005 | self.coded = [false; 24]; |
| 1006 | self.dc_only = [false; 24]; |
| 1007 | if hdr.ftype != FrameType::B { |
| 1008 | self.mbtypes[mb_idx] = mb_type as u8; |
| 1009 | } |
| 1010 | if mb_type < 8 { |
| 1011 | validate!(hdr.ftype != FrameType::I); |
| 1012 | self.imode.fill_block(2); |
| 1013 | self.decode_inter_block(br, mb_type, &mut sstate, hdr, dframe)?; |
| 1014 | self.put_residue(dframe); |
| 1015 | } else { |
| 1016 | self.decode_intra_block(br, mb_type, &mut sstate, hdr)?; |
| 1017 | let is_4x4 = mb_type == 8 || mb_type == 33; |
| 1018 | if is_4x4 { |
| 1019 | self.put_intra4x4(dframe, &sstate); |
| 1020 | } else { |
| 1021 | let im16 = self.imode.get_pred16_type(sstate.has_top, sstate.has_left); |
| 1022 | let stride = dframe.stride[0]; |
| 1023 | let doff = dframe.offset[0] + self.mb_x * 16 + self.mb_y * 16 * stride; |
| 1024 | IPRED_FUNCS16X16[im16 as usize](dframe.data, doff, stride); |
| 1025 | let im8 = self.imode.get_pred8_type(sstate.has_top, sstate.has_left); |
| 1026 | for comp in 1..3 { |
| 1027 | let stride = dframe.stride[comp]; |
| 1028 | let doff = dframe.offset[comp] + self.mb_x * 8 + self.mb_y * 8 * stride; |
| 1029 | IPRED_FUNCS8X8[im8 as usize](dframe.data, doff, stride); |
| 1030 | } |
| 1031 | self.put_residue(dframe); |
| 1032 | } |
| 1033 | self.mvi.fill(self.mb_x, self.mb_y, true, ZERO_MV); |
| 1034 | self.mvi.fill(self.mb_x, self.mb_y, false, ZERO_MV); |
| 1035 | } |
| 1036 | sstate.has_left = true; |
| 1037 | self.mb_x += 1; |
| 1038 | if self.mb_x == self.mb_w { |
| 1039 | self.mb_x = 0; |
| 1040 | self.mb_y += 1; |
| 1041 | sstate.has_left = false; |
| 1042 | self.imode.update(); |
| 1043 | } |
| 1044 | mb_idx += 1; |
| 1045 | } |
| 1046 | Ok(()) |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | const FRAME_SIZES: [(usize, usize); 7] = [ |
| 1051 | (160, 120), (128, 96), (176, 144), (352, 288), |
| 1052 | (704, 576), (240, 180), (320, 240) |
| 1053 | ]; |
| 1054 | const FRAME_TYPES: [FrameType; 3] = [ FrameType::P, FrameType::B, FrameType::I ]; |
| 1055 | |
| 1056 | impl NADecoder for SVQ3Decoder { |
| 1057 | fn init(&mut self, supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { |
| 1058 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { |
| 1059 | self.width = vinfo.get_width(); |
| 1060 | self.height = vinfo.get_height(); |
| 1061 | if let Some(ref edata) = info.get_extradata() { |
| 1062 | let mut start = edata.len(); |
| 1063 | for i in 0..edata.len() - 9 { |
| 1064 | if &edata[i..][..4] == b"SEQH" { |
| 1065 | let size = read_u32be(&edata[i + 4..])? as usize; |
| 1066 | validate!(i + 8 + size <= edata.len()); |
| 1067 | start = i + 8; |
| 1068 | break; |
| 1069 | } |
| 1070 | } |
| 1071 | if start < edata.len() { |
| 1072 | self.parse_sequence_header(&edata[start..])?; |
| 1073 | } else { |
| 1074 | return Err(DecoderError::InvalidData); |
| 1075 | } |
| 1076 | } else { |
| 1077 | return Err(DecoderError::InvalidData); |
| 1078 | } |
| 1079 | let myinfo = NAVideoInfo::new(self.width, self.height, false, YUV420_FORMAT); |
| 1080 | self.info = NACodecInfo::new_ref(info.get_name(), NACodecTypeInfo::Video(myinfo), info.get_extradata()).into_ref(); |
| 1081 | supp.pool_u8.set_dec_bufs(3); |
| 1082 | supp.pool_u8.prealloc_video(myinfo, 4)?; |
| 1083 | |
| 1084 | self.mb_w = (self.width + 15) >> 4; |
| 1085 | self.mb_h = (self.height + 15) >> 4; |
| 1086 | self.imode = IntraModeState::new(self.mb_w); |
| 1087 | |
| 1088 | Ok(()) |
| 1089 | } else { |
| 1090 | Err(DecoderError::InvalidData) |
| 1091 | } |
| 1092 | } |
| 1093 | fn decode(&mut self, supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { |
| 1094 | let src = pkt.get_buffer(); |
| 1095 | validate!(src.len() > 0); |
| 1096 | |
| 1097 | if src.len() == 1 { |
| 1098 | validate!(src[0] == 0xFF); |
| 1099 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), NABufferType::None); |
| 1100 | frm.set_keyframe(false); |
| 1101 | frm.set_frame_type(FrameType::Skip); |
| 1102 | return Ok(frm.into_ref()); |
| 1103 | } |
| 1104 | |
| 1105 | let slice_mode = src[0] & 0x9F; |
| 1106 | validate!(slice_mode == 1 || slice_mode == 2); |
| 1107 | let mut slice_len = self.prepare_slice_buffer(src.as_slice())?; |
| 1108 | |
| 1109 | let mut br = BitReader::new(&self.slice_buf, BitReaderMode::BE); |
| 1110 | let frame_hdr = self.parse_slice_header(&mut br, slice_mode)?; |
| 1111 | |
| 1112 | let ret = supp.pool_u8.get_free(); |
| 1113 | if ret.is_none() { |
| 1114 | return Err(DecoderError::AllocError); |
| 1115 | } |
| 1116 | |
| 1117 | let mut buf = ret.unwrap(); |
| 1118 | let mut dframe = NASimpleVideoFrame::from_video_buf(&mut buf).unwrap(); |
| 1119 | |
| 1120 | match frame_hdr.ftype { |
| 1121 | FrameType::I => { |
| 1122 | }, |
| 1123 | FrameType::P => { |
| 1124 | if self.ipbs.get_lastref().is_none() { |
| 1125 | return Err(DecoderError::MissingReference); |
| 1126 | } |
| 1127 | }, |
| 1128 | FrameType::B => { |
| 1129 | if self.ipbs.get_b_fwdref().is_none() || self.ipbs.get_b_bwdref().is_none() { |
| 1130 | return Err(DecoderError::MissingReference); |
| 1131 | } |
| 1132 | }, |
| 1133 | |
| 1134 | _ => unreachable!(), |
| 1135 | } |
| 1136 | |
| 1137 | self.mb_x = 0; |
| 1138 | self.mb_y = 0; |
| 1139 | |
| 1140 | self.mvi.resize(self.mb_w, self.mb_h); |
| 1141 | if frame_hdr.ftype != FrameType::B { |
| 1142 | self.mbtypes.resize(self.mb_w * self.mb_h, 0); |
| 1143 | } |
| 1144 | |
| 1145 | let mut slice_prepared = true; |
| 1146 | let mut off = 0; |
| 1147 | while off < src.len() { |
| 1148 | if src[off] == 0xFF { break; } |
| 1149 | |
| 1150 | let slice_mode = src[off] & 0x9F; |
| 1151 | validate!(slice_mode == 1 || slice_mode == 2); |
| 1152 | if !slice_prepared { |
| 1153 | slice_len = self.prepare_slice_buffer(&src[off..])?; |
| 1154 | } |
| 1155 | let mut sbuf = Vec::new(); |
| 1156 | std::mem::swap(&mut sbuf, &mut self.slice_buf); |
| 1157 | let mut br = BitReader::new(sbuf.as_slice(), BitReaderMode::BE); |
| 1158 | let ret = self.parse_slice_header(&mut br, slice_mode); |
| 1159 | if let Err(err) = ret { |
| 1160 | std::mem::swap(&mut sbuf, &mut self.slice_buf); |
| 1161 | return Err(err); |
| 1162 | } |
| 1163 | let hdr = ret.unwrap(); |
| 1164 | if hdr.ftype != frame_hdr.ftype || hdr.ts != frame_hdr.ts { |
| 1165 | std::mem::swap(&mut sbuf, &mut self.slice_buf); |
| 1166 | return Err(DecoderError::InvalidData); |
| 1167 | } |
| 1168 | let ret = self.decode_slice(&mut br, &hdr, &mut dframe); |
| 1169 | std::mem::swap(&mut sbuf, &mut self.slice_buf); |
| 1170 | if let Err(err) = ret { |
| 1171 | return Err(err); |
| 1172 | } |
| 1173 | slice_prepared = false; |
| 1174 | off += slice_len; |
| 1175 | } |
| 1176 | |
| 1177 | validate!(self.mb_x == 0 && self.mb_y == self.mb_h); |
| 1178 | |
| 1179 | if frame_hdr.ftype != FrameType::B { |
| 1180 | self.ipbs.add_frame(buf.clone()); |
| 1181 | std::mem::swap(&mut self.mvi, &mut self.ref_mvi); |
| 1182 | self.ts_fwd = self.ts_bwd; |
| 1183 | self.ts_bwd = frame_hdr.ts; |
| 1184 | |
| 1185 | self.pts_base = pkt.get_pts().unwrap_or(0); |
| 1186 | self.ts_base = frame_hdr.ts; |
| 1187 | } |
| 1188 | |
| 1189 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), NABufferType::Video(buf)); |
| 1190 | frm.set_keyframe(frame_hdr.ftype == FrameType::I); |
| 1191 | frm.set_frame_type(frame_hdr.ftype); |
| 1192 | if !self.no_bframes && frm.get_pts().is_some() { |
| 1193 | let pts = self.pts_base - u64::from(self.ts_base.wrapping_sub(frame_hdr.ts)); |
| 1194 | frm.set_pts(Some(pts)); |
| 1195 | } |
| 1196 | Ok(frm.into_ref()) |
| 1197 | } |
| 1198 | fn flush(&mut self) { |
| 1199 | self.ipbs.clear(); |
| 1200 | self.ts_fwd = 0; |
| 1201 | self.ts_bwd = 0; |
| 1202 | } |
| 1203 | } |
| 1204 | |
| 1205 | impl NAOptionHandler for SVQ3Decoder { |
| 1206 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 1207 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 1208 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 1209 | } |
| 1210 | |
| 1211 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { |
| 1212 | Box::new(SVQ3Decoder::new()) |
| 1213 | } |
| 1214 | |
| 1215 | #[cfg(test)] |
| 1216 | mod test { |
| 1217 | use nihav_core::codecs::RegisteredDecoders; |
| 1218 | use nihav_core::demuxers::RegisteredDemuxers; |
| 1219 | use nihav_codec_support::test::dec_video::*; |
| 1220 | use crate::qt_register_all_decoders; |
| 1221 | use nihav_commonfmt::generic_register_all_demuxers; |
| 1222 | #[test] |
| 1223 | fn test_svq3() { |
| 1224 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 1225 | generic_register_all_demuxers(&mut dmx_reg); |
| 1226 | let mut dec_reg = RegisteredDecoders::new(); |
| 1227 | qt_register_all_decoders(&mut dec_reg); |
| 1228 | |
| 1229 | //let file = "assets/QT/cristinreel.mov"; |
| 1230 | //let file = "assets/QT/broken_sword_Large.mov"; |
| 1231 | //test_file_decoding("mov", file, Some(264), true, false, Some("svq3"), &dmx_reg, &dec_reg); |
| 1232 | //panic!("end"); |
| 1233 | test_decoding("mov", "sorenson-video3", "assets/QT/broken_sword_Large.mov", Some(40), &dmx_reg, &dec_reg, |
| 1234 | ExpectedTestResult::MD5Frames(vec![ |
| 1235 | [0x16924d18, 0xccc5a0b4, 0xc2bb9412, 0x93d41f10], |
| 1236 | [0x84cccf62, 0x0762a61c, 0xe0b1d369, 0x211f066e], |
| 1237 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1238 | [0x8f9e157e, 0xb61f5864, 0x49cc29a7, 0xa2b648a4], |
| 1239 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1240 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1241 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1242 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1243 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1244 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1245 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1246 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1247 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1248 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1249 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1250 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1251 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1252 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1253 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1254 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1255 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1256 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1257 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1258 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1259 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1260 | [0xb7a27005, 0xd22f8f4d, 0x8414d8e2, 0x84be8fda], |
| 1261 | [0xad96c999, 0x89bfe564, 0x476f918a, 0xf89bb023], |
| 1262 | [0x1f40cce7, 0xcccc68b3, 0x2a0b28b1, 0x3210675c], |
| 1263 | [0x3165e832, 0xcb7dad5b, 0x295983fa, 0x270acdcd], |
| 1264 | [0x54b88d2a, 0x97c5ad60, 0x9cca1823, 0x458566e6], |
| 1265 | [0xbdd02a56, 0x7ee24530, 0x32262d19, 0x2f3c8237], |
| 1266 | [0x4e898806, 0x85fb7504, 0x19da4747, 0x00c55a0e], |
| 1267 | [0x5899e1f5, 0x667fbc86, 0xcbeeff49, 0x6ac996b9], |
| 1268 | [0x1b640dd6, 0xa999c0f6, 0x57cb9bed, 0xf0265669], |
| 1269 | [0x3cee4540, 0x35ce897b, 0x9db825aa, 0xd6204c2c], |
| 1270 | [0x459bfa2f, 0x451555e6, 0x08681f32, 0xf56cdc05], |
| 1271 | [0x78018c23, 0x333f1892, 0xabab4889, 0x3e3cf020], |
| 1272 | [0x2a24d296, 0xc572a5fe, 0x0af6a85a, 0x5721bfc4], |
| 1273 | [0xdf354969, 0xfbf01155, 0xa1e6d53a, 0x49334823], |
| 1274 | [0x5e493eb2, 0xc92258b8, 0xcec5e684, 0x92bd0f3c], |
| 1275 | [0x5bf8ea79, 0xb363c077, 0x05c461a3, 0xa065da2c]])); |
| 1276 | } |
| 1277 | } |
| 1278 | |
| 1279 | const SVQ3_INTRA_ANGLE: [i8; 4] = [ 0, 2, 1, 3 ]; |
| 1280 | const SVQ3_INTRA_CBP: [u8; 6] = [ 0x00, 0x10, 0x20, 0x0F, 0x1F, 0x2F ]; |
| 1281 | |
| 1282 | const SVQ3_INTRA4_PAIRS: [[u8; 2]; 25] = [ |
| 1283 | [ 0, 0 ], |
| 1284 | [ 1, 0 ], [ 0, 1 ], |
| 1285 | [ 0, 2 ], [ 1, 1 ], [ 2, 0 ], |
| 1286 | [ 3, 0 ], [ 2, 1 ], [ 1, 2 ], [ 0, 3 ], |
| 1287 | [ 0, 4 ], [ 1, 3 ], [ 2, 2 ], [ 3, 1 ], [ 4, 0 ], |
| 1288 | [ 4, 1 ], [ 3, 2 ], [ 2, 3 ], [ 1, 4 ], |
| 1289 | [ 2, 4 ], [ 3, 3 ], [ 4, 2 ], |
| 1290 | [ 4, 3 ], [ 3, 4 ], |
| 1291 | [ 4, 4 ] |
| 1292 | ]; |
| 1293 | |
| 1294 | const SVQ3_INTRA4_CTX_PRED: [[[i8; 5]; 6]; 6] = [ |
| 1295 | [ |
| 1296 | [ 2, -1, -1, -1, -1 ], [ 2, 1, -1, -1, -1 ], [ 1, 2, -1, -1, -1 ], |
| 1297 | [ 2, 1, -1, -1, -1 ], [ 1, 2, -1, -1, -1 ], [ 1, 2, -1, -1, -1 ] |
| 1298 | ], [ |
| 1299 | [ 0, 2, -1, -1, -1 ], [ 0, 2, 1, 4, 3 ], [ 0, 1, 2, 4, 3 ], |
| 1300 | [ 0, 2, 1, 4, 3 ], [ 2, 0, 1, 3, 4 ], [ 0, 4, 2, 1, 3 ] |
| 1301 | ], [ |
| 1302 | [ 2, 0, -1, -1, -1 ], [ 2, 1, 0, 4, 3 ], [ 1, 2, 4, 0, 3 ], |
| 1303 | [ 2, 1, 0, 4, 3 ], [ 2, 1, 4, 3, 0 ], [ 1, 2, 4, 0, 3 ] |
| 1304 | ], [ |
| 1305 | [ 2, 0, -1, -1, -1 ], [ 2, 0, 1, 4, 3 ], [ 1, 2, 0, 4, 3 ], |
| 1306 | [ 2, 1, 0, 4, 3 ], [ 2, 1, 3, 4, 0 ], [ 2, 4, 1, 0, 3 ] |
| 1307 | ], [ |
| 1308 | [ 0, 2, -1, -1, -1 ], [ 0, 2, 1, 3, 4 ], [ 1, 2, 3, 0, 4 ], |
| 1309 | [ 2, 0, 1, 3, 4 ], [ 2, 1, 3, 0, 4 ], [ 2, 0, 4, 3, 1 ] |
| 1310 | ], [ |
| 1311 | [ 0, 2, -1, -1, -1 ], [ 0, 2, 4, 1, 3 ], [ 1, 4, 2, 0, 3 ], |
| 1312 | [ 4, 2, 0, 1, 3 ], [ 2, 0, 1, 4, 3 ], [ 4, 2, 1, 0, 3 ] |
| 1313 | ] |
| 1314 | ]; |
| 1315 | |
| 1316 | const SVQ3_PART_SIZES: [(u8, u8); 8] = [ |
| 1317 | (16, 16), (16, 16), (8, 16), (16, 8), (8, 8), (4, 8), (8, 4), (4, 4) |
| 1318 | ]; |
| 1319 | |
| 1320 | const SVQ3_CHROMA_QUANT: [u8; 32] = [ |
| 1321 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 1322 | 16, 17, 17, 18, 19, 20, 20, 21, 22, 22, 23, 23, 24, 24, 25, 25 |
| 1323 | ]; |