| 1 | use nihav_core::frame::*; |
| 2 | use nihav_codec_support::codecs::{MV, ZERO_MV}; |
| 3 | use super::super::vpcommon::*; |
| 4 | use super::VP56DCPred; |
| 5 | use super::dsp::*; |
| 6 | use super::rdo::*; |
| 7 | |
| 8 | /*#[cfg(debug_assertions)] |
| 9 | use std::io::Write; |
| 10 | #[cfg(debug_assertions)] |
| 11 | use std::fs::File; |
| 12 | #[cfg(debug_assertions)] |
| 13 | pub fn dump_pgm(vbuf: &NAVideoBuffer<u8>, name: &str) { |
| 14 | let dst = vbuf.get_data(); |
| 15 | let (w, h) = vbuf.get_dimensions(0); |
| 16 | let mut file = File::create(name).unwrap(); |
| 17 | file.write_all(format!("P5\n{} {}\n255\n", w, h * 3 / 2).as_bytes()).unwrap(); |
| 18 | for row in dst[vbuf.get_offset(0)..].chunks(vbuf.get_stride(0)).take(h).rev() { |
| 19 | file.write_all(row).unwrap(); |
| 20 | } |
| 21 | for (row1, row2) in dst[vbuf.get_offset(1)..].chunks(vbuf.get_stride(1)).take(h / 2).zip(dst[vbuf.get_offset(2)..].chunks(vbuf.get_stride(2))).rev() { |
| 22 | file.write_all(row1).unwrap(); |
| 23 | file.write_all(row2).unwrap(); |
| 24 | } |
| 25 | }*/ |
| 26 | |
| 27 | pub type Coeffs = [[i16; 64]; 6]; |
| 28 | |
| 29 | #[derive(Clone)] |
| 30 | pub struct ResidueMB { |
| 31 | pub coeffs: Coeffs, |
| 32 | } |
| 33 | |
| 34 | impl ResidueMB { |
| 35 | fn new() -> Self { |
| 36 | Self { |
| 37 | coeffs: [[0; 64]; 6], |
| 38 | } |
| 39 | } |
| 40 | fn fdct(&mut self) { |
| 41 | for blk in self.coeffs.iter_mut() { |
| 42 | vp_fdct(blk); |
| 43 | } |
| 44 | } |
| 45 | fn idct(&mut self) { |
| 46 | for blk in self.coeffs.iter_mut() { |
| 47 | vp_idct(blk); |
| 48 | } |
| 49 | } |
| 50 | fn quant(&mut self, q: usize) { |
| 51 | for blk in self.coeffs.iter_mut() { |
| 52 | if blk[0] != 0 { |
| 53 | blk[0] /= VP56_DC_QUANTS[q] * 4; |
| 54 | } |
| 55 | for coef in blk[1..].iter_mut() { |
| 56 | if *coef != 0 { |
| 57 | *coef /= VP56_AC_QUANTS[q] * 4; |
| 58 | } |
| 59 | } |
| 60 | } |
| 61 | } |
| 62 | fn dequant(&mut self, q: usize) { |
| 63 | for blk in self.coeffs.iter_mut() { |
| 64 | if blk[0] != 0 { |
| 65 | blk[0] *= VP56_DC_QUANTS[q] * 4; |
| 66 | } |
| 67 | for coef in blk[1..].iter_mut() { |
| 68 | if *coef != 0 { |
| 69 | *coef *= VP56_AC_QUANTS[q] * 4; |
| 70 | } |
| 71 | } |
| 72 | } |
| 73 | } |
| 74 | fn dequant_from(&mut self, src: &Self, q: usize) { |
| 75 | for (dblk, sblk) in self.coeffs.iter_mut().zip(src.coeffs.iter()) { |
| 76 | dblk[0] = if sblk[0] != 0 { sblk[0] * VP56_DC_QUANTS[q] * 4 } else { 0 }; |
| 77 | for (dcoef, &scoef) in dblk[1..].iter_mut().zip(sblk[1..].iter()) { |
| 78 | *dcoef = if scoef != 0 { scoef * VP56_AC_QUANTS[q] * 4 } else { 0 }; |
| 79 | } |
| 80 | } |
| 81 | } |
| 82 | fn fill(&self, dst: &mut [[u8; 64]; 6]) { |
| 83 | for (dblk, sblk) in dst.iter_mut().zip(self.coeffs.iter()) { |
| 84 | for (dcoef, &scoef) in dblk.iter_mut().zip(sblk.iter()) { |
| 85 | *dcoef = scoef as u8; |
| 86 | } |
| 87 | } |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | #[derive(Clone)] |
| 92 | pub struct InterMB { |
| 93 | pub residue: ResidueMB, |
| 94 | pub reference: Coeffs, |
| 95 | pub mv: [MV; 4], |
| 96 | } |
| 97 | |
| 98 | impl InterMB { |
| 99 | fn new() -> Self { |
| 100 | Self { |
| 101 | residue: ResidueMB::new(), |
| 102 | reference: [[0; 64]; 6], |
| 103 | mv: [ZERO_MV; 4], |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | const VP56_DC_QUANTS: [i16; 64] = [ |
| 109 | 47, 47, 47, 47, 45, 43, 43, 43, |
| 110 | 43, 43, 42, 41, 41, 40, 40, 40, |
| 111 | 40, 35, 35, 35, 35, 33, 33, 33, |
| 112 | 33, 32, 32, 32, 27, 27, 26, 26, |
| 113 | 25, 25, 24, 24, 23, 23, 19, 19, |
| 114 | 19, 19, 18, 18, 17, 16, 16, 16, |
| 115 | 16, 16, 15, 11, 11, 11, 10, 10, |
| 116 | 9, 8, 7, 5, 3, 3, 2, 2 |
| 117 | ]; |
| 118 | const VP56_AC_QUANTS: [i16; 64] = [ |
| 119 | 94, 92, 90, 88, 86, 82, 78, 74, |
| 120 | 70, 66, 62, 58, 54, 53, 52, 51, |
| 121 | 50, 49, 48, 47, 46, 45, 44, 43, |
| 122 | 42, 40, 39, 37, 36, 35, 34, 33, |
| 123 | 32, 31, 30, 29, 28, 27, 26, 25, |
| 124 | 24, 23, 22, 21, 20, 19, 18, 17, |
| 125 | 16, 15, 14, 13, 12, 11, 10, 9, |
| 126 | 8, 7, 6, 5, 4, 3, 2, 1 |
| 127 | ]; |
| 128 | |
| 129 | const VP56_FILTER_LIMITS: [u8; 64] = [ |
| 130 | 14, 14, 13, 13, 12, 12, 10, 10, |
| 131 | 10, 10, 8, 8, 8, 8, 8, 8, |
| 132 | 8, 8, 8, 8, 8, 8, 8, 8, |
| 133 | 8, 8, 8, 8, 8, 8, 8, 8, |
| 134 | 8, 8, 8, 8, 7, 7, 7, 7, |
| 135 | 7, 7, 6, 6, 6, 6, 6, 6, |
| 136 | 5, 5, 5, 5, 4, 4, 4, 4, |
| 137 | 4, 4, 4, 3, 3, 3, 3, 2 |
| 138 | ]; |
| 139 | |
| 140 | #[derive(Default)] |
| 141 | pub struct FrameEncoder { |
| 142 | pub quant: usize, |
| 143 | pub src_mbs: Vec<ResidueMB>, |
| 144 | pub intra_mbs: Vec<ResidueMB>, |
| 145 | pub inter_mbs: Vec<InterMB>, |
| 146 | pub fourmv_mbs: Vec<InterMB>, |
| 147 | pub golden_mbs: Vec<InterMB>, |
| 148 | |
| 149 | pub mb_types: Vec<VPMBType>, |
| 150 | pub num_mv: Vec<u8>, |
| 151 | pub coded_mv: Vec<[MV; 4]>, |
| 152 | pub fmv_sub: Vec<[VPMBType; 4]>, |
| 153 | |
| 154 | pub mb_w: usize, |
| 155 | pub mb_h: usize, |
| 156 | |
| 157 | pub me_mode: MVSearchMode, |
| 158 | pub me_range: i16, |
| 159 | } |
| 160 | |
| 161 | macro_rules! read_block { |
| 162 | ($dst: expr, $src: expr, $stride: expr) => { |
| 163 | for (drow, srow) in $dst.chunks_mut(8).zip($src.chunks($stride).take(8)) { |
| 164 | for (dst, &src) in drow.iter_mut().zip(srow.iter()) { |
| 165 | *dst = i16::from(src); |
| 166 | } |
| 167 | } |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | macro_rules! write_block { |
| 172 | ($dst: expr, $src: expr, $stride: expr) => { |
| 173 | for (drow, srow) in $dst.chunks_mut($stride).take(8).zip($src.chunks(8)) { |
| 174 | drow[..8].copy_from_slice(srow); |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | impl FrameEncoder { |
| 180 | pub fn new() -> Self { Self::default() } |
| 181 | pub fn resize(&mut self, mb_w: usize, mb_h: usize) { |
| 182 | self.mb_w = mb_w; |
| 183 | self.mb_h = mb_h; |
| 184 | |
| 185 | let num_mbs = self.mb_w * self.mb_h; |
| 186 | self.src_mbs.clear(); |
| 187 | self.src_mbs.reserve(num_mbs); |
| 188 | self.intra_mbs.clear(); |
| 189 | self.intra_mbs.reserve(num_mbs); |
| 190 | self.inter_mbs.clear(); |
| 191 | self.inter_mbs.reserve(num_mbs); |
| 192 | self.fourmv_mbs.clear(); |
| 193 | self.fourmv_mbs.reserve(num_mbs); |
| 194 | self.golden_mbs.clear(); |
| 195 | self.golden_mbs.reserve(num_mbs); |
| 196 | |
| 197 | self.mb_types.clear(); |
| 198 | self.mb_types.reserve(num_mbs); |
| 199 | self.num_mv.clear(); |
| 200 | self.num_mv.reserve(num_mbs); |
| 201 | self.coded_mv.clear(); |
| 202 | self.coded_mv.reserve(num_mbs); |
| 203 | self.fmv_sub.clear(); |
| 204 | self.fmv_sub.reserve(num_mbs); |
| 205 | } |
| 206 | pub fn set_quant(&mut self, quant: usize) { self.quant = quant; } |
| 207 | pub fn read_mbs(&mut self, vbuf: &NAVideoBuffer<u8>) { |
| 208 | let src = vbuf.get_data(); |
| 209 | let y = &src[vbuf.get_offset(0)..]; |
| 210 | let ystride = vbuf.get_stride(0); |
| 211 | let u = &src[vbuf.get_offset(1)..]; |
| 212 | let ustride = vbuf.get_stride(1); |
| 213 | let v = &src[vbuf.get_offset(2)..]; |
| 214 | let vstride = vbuf.get_stride(2); |
| 215 | let (w, _) = vbuf.get_dimensions(0); |
| 216 | |
| 217 | self.src_mbs.clear(); |
| 218 | for (ys, (us, vs)) in y.chunks(ystride * 16).zip(u.chunks(ustride * 8).zip(v.chunks(vstride * 8))) { |
| 219 | for x in (0..w).step_by(16) { |
| 220 | let mut mb = ResidueMB::new(); |
| 221 | for (i, blk) in mb.coeffs[..4].iter_mut().enumerate() { |
| 222 | read_block!(blk, ys[x + (i & 1) * 8 + (i >> 1) * 8 * ystride..], ystride); |
| 223 | } |
| 224 | read_block!(mb.coeffs[4], us[x/2..], ustride); |
| 225 | read_block!(mb.coeffs[5], vs[x/2..], vstride); |
| 226 | self.src_mbs.push(mb); |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | pub fn reconstruct_frame(&mut self, dc_pred: &mut VP56DCPred, mut vbuf: NAVideoBufferRef<u8>) { |
| 231 | let mut blocks = [[0u8; 64]; 6]; |
| 232 | |
| 233 | let mut yoff = vbuf.get_offset(0); |
| 234 | let mut uoff = vbuf.get_offset(1); |
| 235 | let mut voff = vbuf.get_offset(2); |
| 236 | let ystride = vbuf.get_stride(0); |
| 237 | let ustride = vbuf.get_stride(1); |
| 238 | let vstride = vbuf.get_stride(2); |
| 239 | let dst = vbuf.get_data_mut().unwrap(); |
| 240 | |
| 241 | dc_pred.reset(); |
| 242 | |
| 243 | let quant = self.quant; |
| 244 | let mut mb_pos = 0; |
| 245 | for _mb_y in 0..self.mb_h { |
| 246 | for mb_x in 0..self.mb_w { |
| 247 | let mb_type = self.mb_types[mb_pos]; |
| 248 | let mb = self.get_mb_mut(mb_pos); |
| 249 | for (i, blk) in mb.coeffs.iter_mut().enumerate() { |
| 250 | dc_pred.predict_dc(mb_type, i, blk, false); |
| 251 | } |
| 252 | mb.dequant(quant); |
| 253 | mb.idct(); |
| 254 | let mb = self.get_mb(mb_pos); |
| 255 | if mb_type.is_intra() { |
| 256 | for (dblk, sblk) in blocks.iter_mut().zip(mb.coeffs.iter()) { |
| 257 | for (dcoef, &scoef) in dblk.iter_mut().zip(sblk.iter()) { |
| 258 | *dcoef = (scoef + 128).max(0).min(255) as u8; |
| 259 | } |
| 260 | } |
| 261 | } else { |
| 262 | let res_mb = match mb_type.get_ref_id() { |
| 263 | 0 => unreachable!(), |
| 264 | 1 => if mb_type != VPMBType::InterFourMV { |
| 265 | &self.inter_mbs[mb_pos].reference |
| 266 | } else { |
| 267 | &self.fourmv_mbs[mb_pos].reference |
| 268 | }, |
| 269 | _ => &self.golden_mbs[mb_pos].reference, |
| 270 | }; |
| 271 | |
| 272 | for (dblk, (sblk1, sblk2)) in blocks.iter_mut().zip(mb.coeffs.iter().zip(res_mb.iter())) { |
| 273 | for (dcoef, (&scoef1, &scoef2)) in dblk.iter_mut().zip(sblk1.iter().zip(sblk2.iter())) { |
| 274 | *dcoef = (scoef1 + scoef2).max(0).min(255) as u8; |
| 275 | } |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | for i in 0..4 { |
| 280 | write_block!(&mut dst[yoff + mb_x * 16 + (i & 1) * 8 + (i >> 1) * 8 * ystride..], |
| 281 | blocks[i], ystride); |
| 282 | } |
| 283 | write_block!(&mut dst[uoff + mb_x * 8..], blocks[4], ustride); |
| 284 | write_block!(&mut dst[voff + mb_x * 8..], blocks[5], vstride); |
| 285 | |
| 286 | dc_pred.next_mb(); |
| 287 | mb_pos += 1; |
| 288 | } |
| 289 | yoff += ystride * 16; |
| 290 | uoff += ustride * 8; |
| 291 | voff += vstride * 8; |
| 292 | dc_pred.update_row(); |
| 293 | } |
| 294 | /*#[cfg(debug_assertions)] |
| 295 | dump_pgm(&vbuf, "/home/kst/devel/NihAV-rust/assets/test_out/debug.pgm");*/ |
| 296 | } |
| 297 | pub fn get_mb(&self, mb_pos: usize) -> &ResidueMB { |
| 298 | let mb_type = self.mb_types[mb_pos]; |
| 299 | match mb_type.get_ref_id() { |
| 300 | 0 => &self.intra_mbs[mb_pos], |
| 301 | 1 => if mb_type != VPMBType::InterFourMV { |
| 302 | &self.inter_mbs[mb_pos].residue |
| 303 | } else { |
| 304 | &self.fourmv_mbs[mb_pos].residue |
| 305 | }, |
| 306 | _ => &self.golden_mbs[mb_pos].residue, |
| 307 | } |
| 308 | } |
| 309 | fn get_mb_mut(&mut self, mb_pos: usize) -> &mut ResidueMB { |
| 310 | let mb_type = self.mb_types[mb_pos]; |
| 311 | match mb_type.get_ref_id() { |
| 312 | 0 => &mut self.intra_mbs[mb_pos], |
| 313 | 1 => if mb_type != VPMBType::InterFourMV { |
| 314 | &mut self.inter_mbs[mb_pos].residue |
| 315 | } else { |
| 316 | &mut self.fourmv_mbs[mb_pos].residue |
| 317 | }, |
| 318 | _ => &mut self.golden_mbs[mb_pos].residue, |
| 319 | } |
| 320 | } |
| 321 | pub fn prepare_intra_blocks(&mut self) { |
| 322 | self.intra_mbs.clear(); |
| 323 | self.mb_types.clear(); |
| 324 | for smb in self.src_mbs.iter() { |
| 325 | let mut dmb = smb.clone(); |
| 326 | dmb.fdct(); |
| 327 | for blk in dmb.coeffs.iter_mut() { |
| 328 | blk[0] -= 4096; |
| 329 | } |
| 330 | dmb.quant(self.quant); |
| 331 | self.mb_types.push(VPMBType::Intra); |
| 332 | self.intra_mbs.push(dmb); |
| 333 | } |
| 334 | } |
| 335 | pub fn prepare_inter_blocks(&mut self, golden: bool) { |
| 336 | let inter_mbs = if !golden { &mut self.inter_mbs } else { &mut self.golden_mbs }; |
| 337 | for (mb_idx, mb) in inter_mbs.iter_mut().enumerate() { |
| 338 | mb.residue.fdct(); |
| 339 | mb.residue.quant(self.quant); |
| 340 | self.mb_types[mb_idx] = VPMBType::InterMV; |
| 341 | } |
| 342 | } |
| 343 | pub fn estimate_mvs(&mut self, ref_frame: NAVideoBufferRef<u8>, mc_buf: NAVideoBufferRef<u8>, golden: bool) { |
| 344 | let loop_thr = i16::from(VP56_FILTER_LIMITS[self.quant as usize]); |
| 345 | |
| 346 | let inter_mbs = if !golden { &mut self.inter_mbs } else { &mut self.golden_mbs }; |
| 347 | |
| 348 | if inter_mbs.is_empty() { |
| 349 | for _ in 0..self.mb_w * self.mb_h { |
| 350 | inter_mbs.push(InterMB::new()); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | let mut cur_blk = [[0u8; 64]; 6]; |
| 355 | |
| 356 | let mut mv_est = MVEstimator::new(ref_frame, mc_buf, loop_thr, self.me_range); |
| 357 | |
| 358 | let mut mv_search: Box<dyn MVSearch> = match self.me_mode { |
| 359 | MVSearchMode::Full => Box::new(FullMVSearch::new()), |
| 360 | MVSearchMode::Diamond => Box::new(DiaSearch::new()), |
| 361 | MVSearchMode::Hexagon => Box::new(HexSearch::new()), |
| 362 | }; |
| 363 | let mut mb_pos = 0; |
| 364 | for (mb_y, row) in inter_mbs.chunks_mut(self.mb_w).enumerate() { |
| 365 | for (mb_x, mb) in row.iter_mut().enumerate() { |
| 366 | self.src_mbs[mb_pos].fill(&mut cur_blk); |
| 367 | |
| 368 | let (best_mv, _best_dist) = mv_search.search_mb(&mut mv_est, &cur_blk, mb_x, mb_y); |
| 369 | mb.mv[3] = best_mv; |
| 370 | |
| 371 | for i in 0..4 { |
| 372 | mv_est.mc_block(i, 0, mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >> 1) * 8, best_mv); |
| 373 | sub_blk(&mut mb.residue.coeffs[i], &cur_blk[i], &mv_est.ref_blk[i]); |
| 374 | } |
| 375 | for plane in 1..3 { |
| 376 | mv_est.mc_block(plane + 3, plane, mb_x * 8, mb_y * 8, best_mv); |
| 377 | sub_blk(&mut mb.residue.coeffs[plane + 3], &cur_blk[plane + 3], &mv_est.ref_blk[plane + 3]); |
| 378 | } |
| 379 | |
| 380 | for (dblk, sblk) in mb.reference.iter_mut().zip(mv_est.ref_blk.iter()) { |
| 381 | for (dst, &src) in dblk.iter_mut().zip(sblk.iter()) { |
| 382 | *dst = i16::from(src); |
| 383 | } |
| 384 | } |
| 385 | mb_pos += 1; |
| 386 | } |
| 387 | } |
| 388 | } |
| 389 | fn estimate_fourmv(&mut self, ref_frame: NAVideoBufferRef<u8>, mc_buf: NAVideoBufferRef<u8>, mb_x: usize, mb_y: usize) -> bool { |
| 390 | let loop_thr = i16::from(VP56_FILTER_LIMITS[self.quant as usize]); |
| 391 | |
| 392 | if self.fourmv_mbs.is_empty() { |
| 393 | for _ in 0..self.mb_w * self.mb_h { |
| 394 | self.fourmv_mbs.push(InterMB::new()); |
| 395 | } |
| 396 | } |
| 397 | if self.fmv_sub.is_empty() { |
| 398 | self.fmv_sub.resize(self.mb_w * self.mb_h, [VPMBType::Intra; 4]); |
| 399 | } |
| 400 | |
| 401 | let mb_pos = mb_x + mb_y * self.mb_w; |
| 402 | let mb = &mut self.fourmv_mbs[mb_pos]; |
| 403 | |
| 404 | let mut cur_blk = [[0u8; 64]; 6]; |
| 405 | self.src_mbs[mb_pos].fill(&mut cur_blk); |
| 406 | |
| 407 | let mut mv_est = MVEstimator::new(ref_frame, mc_buf, loop_thr, self.me_range); |
| 408 | |
| 409 | let mut mv_search: Box<dyn MVSearch> = match self.me_mode { |
| 410 | MVSearchMode::Full => Box::new(FullMVSearch::new()), |
| 411 | MVSearchMode::Diamond => Box::new(DiaSearch::new()), |
| 412 | MVSearchMode::Hexagon => Box::new(HexSearch::new()), |
| 413 | }; |
| 414 | |
| 415 | for i in 0..4 { |
| 416 | let xpos = mb_x * 16 + (i & 1) * 8; |
| 417 | let ypos = mb_y * 16 + (i >> 1) * 8; |
| 418 | let (best_mv, _best_dist) = mv_search.search_blk(&mut mv_est, &cur_blk[i], xpos, ypos); |
| 419 | mb.mv[i] = best_mv; |
| 420 | } |
| 421 | let mvsum = mb.mv[0] + mb.mv[1] + mb.mv[2] + mb.mv[3]; |
| 422 | let chroma_mv = MV{ x: mvsum.x / 4, y: mvsum.y / 4}; |
| 423 | |
| 424 | for (i, blk) in mb.residue.coeffs[..4].iter_mut().enumerate() { |
| 425 | let xpos = mb_x * 16 + (i & 1) * 8; |
| 426 | let ypos = mb_y * 16 + (i >> 1) * 8; |
| 427 | mv_est.mc_block(i, 0, xpos, ypos, mb.mv[i]); |
| 428 | sub_blk(blk, &cur_blk[i], &mv_est.ref_blk[i]); |
| 429 | } |
| 430 | for plane in 1..3 { |
| 431 | mv_est.mc_block(plane + 3, plane, mb_x * 8, mb_y * 8, chroma_mv); |
| 432 | sub_blk(&mut mb.residue.coeffs[plane + 3], &cur_blk[plane + 3], &mv_est.ref_blk[plane + 3]); |
| 433 | } |
| 434 | |
| 435 | for (dblk, sblk) in mb.reference.iter_mut().zip(mv_est.ref_blk.iter()) { |
| 436 | for (dst, &src) in dblk.iter_mut().zip(sblk.iter()) { |
| 437 | *dst = i16::from(src); |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | (mb.mv[0] != mb.mv[1]) || (mb.mv[0] != mb.mv[2]) || (mb.mv[0] != mb.mv[3]) |
| 442 | } |
| 443 | pub fn select_inter_blocks(&mut self, ref_frame: NAVideoBufferRef<u8>, mc_buf: NAVideoBufferRef<u8>, has_golden_frame: bool, lambda: f32) { |
| 444 | let mut tmp_mb = ResidueMB::new(); |
| 445 | for mb_idx in 0..self.mb_w * self.mb_h { |
| 446 | tmp_mb.dequant_from(&self.intra_mbs[mb_idx], self.quant); |
| 447 | tmp_mb.idct(); |
| 448 | for blk in tmp_mb.coeffs.iter_mut() { |
| 449 | for coef in blk.iter_mut() { |
| 450 | *coef = (*coef + 128).max(0).min(255); |
| 451 | } |
| 452 | } |
| 453 | let intra_dist = calc_mb_dist(&self.src_mbs[mb_idx], &tmp_mb); |
| 454 | let intra_nits = estimate_intra_mb_nits(&self.intra_mbs[mb_idx].coeffs, self.quant); |
| 455 | let intra_cost = (intra_dist as f32) + lambda * (intra_nits as f32); |
| 456 | |
| 457 | tmp_mb.dequant_from(&self.inter_mbs[mb_idx].residue, self.quant); |
| 458 | tmp_mb.idct(); |
| 459 | for (blk, res) in tmp_mb.coeffs.iter_mut().zip(self.inter_mbs[mb_idx].reference.iter()) { |
| 460 | for (coef, add) in blk.iter_mut().zip(res.iter()) { |
| 461 | *coef = (*coef + add).max(0).min(255); |
| 462 | } |
| 463 | } |
| 464 | let inter_dist = calc_mb_dist(&self.src_mbs[mb_idx], &tmp_mb); |
| 465 | let mut inter_nits = estimate_inter_mb_nits(&self.inter_mbs[mb_idx], self.quant, false); |
| 466 | if self.inter_mbs[mb_idx].mv[3] != ZERO_MV { |
| 467 | inter_nits += estimate_mv_nits(self.inter_mbs[mb_idx].mv[3]); |
| 468 | } |
| 469 | let mut inter_cost = (inter_dist as f32) + lambda * (inter_nits as f32); |
| 470 | |
| 471 | if inter_cost < intra_cost { |
| 472 | self.mb_types[mb_idx] = VPMBType::InterMV; |
| 473 | |
| 474 | if inter_dist > 512 { |
| 475 | self.estimate_fourmv(ref_frame.clone(), mc_buf.clone(), mb_idx % self.mb_w, mb_idx / self.mb_w); |
| 476 | self.fourmv_mbs[mb_idx].residue.fdct(); |
| 477 | self.fourmv_mbs[mb_idx].residue.quant(self.quant); |
| 478 | |
| 479 | tmp_mb.dequant_from(&self.fourmv_mbs[mb_idx].residue, self.quant); |
| 480 | tmp_mb.idct(); |
| 481 | for (blk, res) in tmp_mb.coeffs.iter_mut().zip(self.fourmv_mbs[mb_idx].reference.iter()) { |
| 482 | for (coef, add) in blk.iter_mut().zip(res.iter()) { |
| 483 | *coef = (*coef + add).max(0).min(255); |
| 484 | } |
| 485 | } |
| 486 | let fourmv_dist = calc_mb_dist(&self.src_mbs[mb_idx], &tmp_mb); |
| 487 | let fourmv_nits = estimate_inter_mb_nits(&self.fourmv_mbs[mb_idx], self.quant, true); |
| 488 | let fourmv_cost = (fourmv_dist as f32) + lambda * (fourmv_nits as f32); |
| 489 | if fourmv_cost < inter_cost { |
| 490 | self.mb_types[mb_idx] = VPMBType::InterFourMV; |
| 491 | inter_cost = fourmv_cost; |
| 492 | } |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | if has_golden_frame { |
| 497 | tmp_mb.dequant_from(&self.golden_mbs[mb_idx].residue, self.quant); |
| 498 | tmp_mb.idct(); |
| 499 | for (blk, res) in tmp_mb.coeffs.iter_mut().zip(self.golden_mbs[mb_idx].reference.iter()) { |
| 500 | for (coef, add) in blk.iter_mut().zip(res.iter()) { |
| 501 | *coef = (*coef + add).max(0).min(255); |
| 502 | } |
| 503 | } |
| 504 | let golden_dist = calc_mb_dist(&self.src_mbs[mb_idx], &tmp_mb); |
| 505 | let golden_nits = estimate_inter_mb_nits(&self.golden_mbs[mb_idx], self.quant, false); |
| 506 | let golden_cost = (golden_dist as f32) + lambda * (golden_nits as f32); |
| 507 | |
| 508 | if (self.mb_types[mb_idx].is_intra() && golden_cost < intra_cost) || |
| 509 | (!self.mb_types[mb_idx].is_intra() && golden_cost < inter_cost) { |
| 510 | self.mb_types[mb_idx] = VPMBType::GoldenMV; |
| 511 | } |
| 512 | } |
| 513 | } |
| 514 | } |
| 515 | pub fn decide_frame_type(&self) -> (bool, bool) { |
| 516 | let mut intra_count = 0usize; |
| 517 | let mut non_intra = 0usize; |
| 518 | for mb_type in self.mb_types.iter() { |
| 519 | if mb_type.is_intra() { |
| 520 | intra_count += 1; |
| 521 | } else { |
| 522 | non_intra += 1; |
| 523 | } |
| 524 | } |
| 525 | (intra_count > non_intra * 3, intra_count > non_intra) |
| 526 | } |
| 527 | fn find_mv_pred(&self, mb_x: usize, mb_y: usize, ref_id: u8) -> (usize, MV, MV, MV) { |
| 528 | const CAND_POS: [(i8, i8); 12] = [ |
| 529 | (-1, 0), ( 0, -1), |
| 530 | (-1, -1), (-1, 1), |
| 531 | (-2, 0), ( 0, -2), |
| 532 | (-1, -2), (-2, -1), |
| 533 | (-2, 1), (-1, 2), |
| 534 | (-2, -2), (-2, 2) |
| 535 | ]; |
| 536 | |
| 537 | let mut nearest_mv = ZERO_MV; |
| 538 | let mut near_mv = ZERO_MV; |
| 539 | let mut pred_mv = ZERO_MV; |
| 540 | let mut num_mv: usize = 0; |
| 541 | |
| 542 | for (i, (yoff, xoff)) in CAND_POS.iter().enumerate() { |
| 543 | let cx = (mb_x as isize) + (*xoff as isize); |
| 544 | let cy = (mb_y as isize) + (*yoff as isize); |
| 545 | if (cx < 0) || (cy < 0) { |
| 546 | continue; |
| 547 | } |
| 548 | let cx = cx as usize; |
| 549 | let cy = cy as usize; |
| 550 | if (cx >= self.mb_w) || (cy >= self.mb_h) { |
| 551 | continue; |
| 552 | } |
| 553 | let mb_pos = cx + cy * self.mb_w; |
| 554 | let mv = match self.mb_types[mb_pos].get_ref_id() { |
| 555 | 0 => ZERO_MV, |
| 556 | 1 => if self.mb_types[mb_pos] != VPMBType::InterFourMV { |
| 557 | self.inter_mbs[mb_pos].mv[3] |
| 558 | } else { |
| 559 | self.fourmv_mbs[mb_pos].mv[3] |
| 560 | }, |
| 561 | _ => self.golden_mbs[mb_pos].mv[3], |
| 562 | }; |
| 563 | if (self.mb_types[mb_pos].get_ref_id() != ref_id) || (mv == ZERO_MV) { |
| 564 | continue; |
| 565 | } |
| 566 | if num_mv == 0 { |
| 567 | nearest_mv = mv; |
| 568 | num_mv += 1; |
| 569 | if i < 2 { |
| 570 | pred_mv = mv; |
| 571 | } |
| 572 | } else if mv != nearest_mv { |
| 573 | near_mv = mv; |
| 574 | num_mv += 1; |
| 575 | break; |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | (num_mv, nearest_mv, near_mv, pred_mv) |
| 580 | } |
| 581 | pub fn predict_mvs(&mut self) { |
| 582 | let mut mb_idx = 0; |
| 583 | self.num_mv.clear(); |
| 584 | if self.coded_mv.is_empty() { |
| 585 | self.coded_mv.resize(self.mb_w * self.mb_h, [ZERO_MV; 4]); |
| 586 | } |
| 587 | for mb_y in 0..self.mb_h { |
| 588 | for mb_x in 0..self.mb_w { |
| 589 | let (num_mv, nearest_mv, near_mv, pred_mv) = self.find_mv_pred(mb_x, mb_y, VP_REF_INTER); |
| 590 | let mb_type = self.mb_types[mb_idx]; |
| 591 | self.num_mv.push(num_mv as u8); |
| 592 | let golden = mb_type.get_ref_id() == VP_REF_GOLDEN; |
| 593 | let mv = if !golden { self.inter_mbs[mb_idx].mv[3] } else { self.golden_mbs[mb_idx].mv[3] }; |
| 594 | |
| 595 | let mb_type = if mb_type == VPMBType::Intra { |
| 596 | VPMBType::Intra |
| 597 | } else if mb_type == VPMBType::InterFourMV { |
| 598 | for i in 0..4 { |
| 599 | let mv = self.fourmv_mbs[mb_idx].mv[i]; |
| 600 | self.coded_mv[mb_idx][i] = ZERO_MV; |
| 601 | if mv == ZERO_MV { |
| 602 | self.fmv_sub[mb_idx][i] = VPMBType::InterNoMV; |
| 603 | } else { |
| 604 | self.fmv_sub[mb_idx][i] = match num_mv { |
| 605 | 0 => { |
| 606 | self.coded_mv[mb_idx][i] = mv - pred_mv; |
| 607 | VPMBType::InterMV |
| 608 | }, |
| 609 | 1 => { |
| 610 | if nearest_mv == mv { |
| 611 | VPMBType::InterNearest |
| 612 | } else { |
| 613 | self.coded_mv[mb_idx][i] = mv - pred_mv; |
| 614 | VPMBType::InterMV |
| 615 | } |
| 616 | }, |
| 617 | _ => { |
| 618 | if nearest_mv == mv { |
| 619 | VPMBType::InterNearest |
| 620 | } else if near_mv == mv { |
| 621 | VPMBType::InterNear |
| 622 | } else { |
| 623 | self.coded_mv[mb_idx][i] = mv - pred_mv; |
| 624 | VPMBType::InterMV |
| 625 | } |
| 626 | }, |
| 627 | }; |
| 628 | } |
| 629 | } |
| 630 | VPMBType::InterFourMV |
| 631 | } else if mv == ZERO_MV { |
| 632 | if !golden { |
| 633 | VPMBType::InterNoMV |
| 634 | } else { |
| 635 | VPMBType::GoldenNoMV |
| 636 | } |
| 637 | } else if mb_type.get_ref_id() == VP_REF_INTER { |
| 638 | self.coded_mv[mb_idx][3] = mv; |
| 639 | match num_mv { |
| 640 | 0 => VPMBType::InterMV, |
| 641 | 1 => { |
| 642 | if nearest_mv == mv { |
| 643 | VPMBType::InterNearest |
| 644 | } else { |
| 645 | self.coded_mv[mb_idx][3] = mv - pred_mv; |
| 646 | VPMBType::InterMV |
| 647 | } |
| 648 | }, |
| 649 | _ => { |
| 650 | if nearest_mv == mv { |
| 651 | VPMBType::InterNearest |
| 652 | } else if near_mv == mv { |
| 653 | VPMBType::InterNear |
| 654 | } else { |
| 655 | self.coded_mv[mb_idx][3] = mv - pred_mv; |
| 656 | VPMBType::InterMV |
| 657 | } |
| 658 | }, |
| 659 | } |
| 660 | } else { |
| 661 | let (num_mv, nearest_mv, near_mv, pred_mv) = self.find_mv_pred(mb_x, mb_y, VP_REF_GOLDEN); |
| 662 | self.coded_mv[mb_idx][3] = ZERO_MV; |
| 663 | match num_mv { |
| 664 | 0 => { |
| 665 | self.coded_mv[mb_idx][3] = mv - pred_mv; |
| 666 | VPMBType::GoldenMV |
| 667 | }, |
| 668 | 1 => { |
| 669 | if nearest_mv == mv { |
| 670 | VPMBType::GoldenNearest |
| 671 | } else { |
| 672 | self.coded_mv[mb_idx][3] = mv - pred_mv; |
| 673 | VPMBType::GoldenMV |
| 674 | } |
| 675 | }, |
| 676 | _ => { |
| 677 | if nearest_mv == mv { |
| 678 | VPMBType::GoldenNearest |
| 679 | } else if near_mv == mv { |
| 680 | VPMBType::GoldenNear |
| 681 | } else { |
| 682 | self.coded_mv[mb_idx][3] = mv - pred_mv; |
| 683 | VPMBType::GoldenMV |
| 684 | } |
| 685 | }, |
| 686 | } |
| 687 | }; |
| 688 | self.mb_types[mb_idx] = mb_type; |
| 689 | mb_idx += 1; |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | pub fn apply_dc_prediction(&mut self, dc_pred: &mut VP56DCPred) { |
| 694 | dc_pred.reset(); |
| 695 | |
| 696 | let mut mb_idx = 0; |
| 697 | for _mb_y in 0..self.mb_h { |
| 698 | for _mb_x in 0..self.mb_w { |
| 699 | let mb_type = self.mb_types[mb_idx]; |
| 700 | let mb = self.get_mb_mut(mb_idx); |
| 701 | for (i, blk) in mb.coeffs.iter_mut().enumerate() { |
| 702 | dc_pred.predict_dc(mb_type, i, blk, true); |
| 703 | } |
| 704 | dc_pred.next_mb(); |
| 705 | mb_idx += 1; |
| 706 | } |
| 707 | dc_pred.update_row(); |
| 708 | } |
| 709 | } |
| 710 | } |