| 1 | //use std::mem; |
| 2 | use nihav_core::codecs::DecoderError; |
| 3 | use nihav_core::frame::*; |
| 4 | use super::super::*; |
| 5 | use super::super::blockdsp; |
| 6 | use super::*; |
| 7 | use super::code::{H263_INTERP_FUNCS, obmc_filter}; |
| 8 | use super::data::H263_CHROMA_ROUND; |
| 9 | use nihav_core::formats; |
| 10 | |
| 11 | #[allow(dead_code)] |
| 12 | struct MVInfo { |
| 13 | mv: Vec<MV>, |
| 14 | mb_w: usize, |
| 15 | mb_stride: usize, |
| 16 | mb_start: usize, |
| 17 | top: bool, |
| 18 | mvmode: MVMode, |
| 19 | } |
| 20 | |
| 21 | impl MVInfo { |
| 22 | fn new() -> Self { MVInfo{ mv: Vec::new(), mb_w: 0, mb_stride: 0, mb_start: 0, top: true, mvmode: MVMode::Old } } |
| 23 | fn reset(&mut self, mb_w: usize, mb_start: usize, mvmode: MVMode) { |
| 24 | self.mb_start = mb_start; |
| 25 | self.mb_w = mb_w; |
| 26 | self.mb_stride = mb_w * 2 + 2; |
| 27 | self.mv.resize(self.mb_stride * 3, ZERO_MV); |
| 28 | self.mvmode = mvmode; |
| 29 | } |
| 30 | fn update_row(&mut self) { |
| 31 | self.mb_start = self.mb_w + 1; |
| 32 | self.top = false; |
| 33 | for i in 0..self.mb_stride { |
| 34 | self.mv[i] = self.mv[self.mb_stride * 2 + i]; |
| 35 | } |
| 36 | } |
| 37 | #[allow(non_snake_case)] |
| 38 | fn predict(&mut self, mb_x: usize, blk_no: usize, use4: bool, diff: MV, first_line: bool, first_mb: bool) -> MV { |
| 39 | let A; |
| 40 | let B; |
| 41 | let C; |
| 42 | let last = mb_x == self.mb_w - 1; |
| 43 | match blk_no { |
| 44 | 0 => { |
| 45 | if mb_x != self.mb_start { |
| 46 | A = if !first_mb { self.mv[self.mb_stride + mb_x * 2 - 1] } else { ZERO_MV }; |
| 47 | B = if !first_line { self.mv[ mb_x * 2] } else { A }; |
| 48 | C = if !first_line && !last { self.mv[mb_x * 2 + 2] } else { ZERO_MV }; |
| 49 | } else { |
| 50 | A = ZERO_MV; B = ZERO_MV; C = ZERO_MV; |
| 51 | } |
| 52 | }, |
| 53 | 1 => { |
| 54 | A = self.mv[self.mb_stride + mb_x * 2]; |
| 55 | B = if !first_line { self.mv[mb_x * 2 + 1] } else { A }; |
| 56 | C = if !first_line && !last { self.mv[mb_x * 2 + 2] } else { ZERO_MV/*A*/ }; |
| 57 | }, |
| 58 | 2 => { |
| 59 | A = if mb_x != self.mb_start { self.mv[self.mb_stride * 2 + mb_x * 2 - 1] } else { ZERO_MV }; |
| 60 | B = self.mv[self.mb_stride + mb_x * 2]; |
| 61 | C = self.mv[self.mb_stride + mb_x * 2 + 1]; |
| 62 | }, |
| 63 | 3 => { |
| 64 | A = self.mv[self.mb_stride * 2 + mb_x * 2]; |
| 65 | B = self.mv[self.mb_stride * 1 + mb_x * 2 + 1]; |
| 66 | C = self.mv[self.mb_stride * 1 + mb_x * 2]; |
| 67 | }, |
| 68 | _ => { return ZERO_MV; } |
| 69 | } |
| 70 | let pred_mv = MV::pred(A, B, C); |
| 71 | let new_mv = MV::add_umv(pred_mv, diff, self.mvmode); |
| 72 | if !use4 { |
| 73 | self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = new_mv; |
| 74 | self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = new_mv; |
| 75 | self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = new_mv; |
| 76 | self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = new_mv; |
| 77 | } else { |
| 78 | match blk_no { |
| 79 | 0 => { self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = new_mv; }, |
| 80 | 1 => { self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = new_mv; }, |
| 81 | 2 => { self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = new_mv; }, |
| 82 | 3 => { self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = new_mv; }, |
| 83 | _ => {}, |
| 84 | }; |
| 85 | } |
| 86 | |
| 87 | new_mv |
| 88 | } |
| 89 | fn set_zero_mv(&mut self, mb_x: usize) { |
| 90 | self.mv[self.mb_stride * 1 + mb_x * 2 + 0] = ZERO_MV; |
| 91 | self.mv[self.mb_stride * 1 + mb_x * 2 + 1] = ZERO_MV; |
| 92 | self.mv[self.mb_stride * 2 + mb_x * 2 + 0] = ZERO_MV; |
| 93 | self.mv[self.mb_stride * 2 + mb_x * 2 + 1] = ZERO_MV; |
| 94 | } |
| 95 | fn get_mv(&self, mb_x: usize, blk_no: usize) -> MV { |
| 96 | self.mv[self.mb_stride + mb_x * 2 + (blk_no & 1) + (blk_no >> 1) * self.mb_stride] |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | #[allow(dead_code)] |
| 101 | #[derive(Clone,Copy)] |
| 102 | struct BMB { |
| 103 | num_mv: usize, |
| 104 | mv_f: [MV; 4], |
| 105 | mv_b: [MV; 4], |
| 106 | fwd: bool, |
| 107 | blk: [[i16; 64]; 6], |
| 108 | cbp: u8, |
| 109 | } |
| 110 | |
| 111 | impl BMB { |
| 112 | fn new() -> Self { BMB {blk: [[0; 64]; 6], cbp: 0, fwd: false, mv_f: [ZERO_MV; 4], mv_b: [ZERO_MV; 4], num_mv: 0} } |
| 113 | } |
| 114 | |
| 115 | #[derive(Clone,Copy)] |
| 116 | struct PredCoeffs { |
| 117 | hor: [[i16; 8]; 6], |
| 118 | ver: [[i16; 8]; 6], |
| 119 | } |
| 120 | |
| 121 | const ZERO_PRED_COEFFS: PredCoeffs = PredCoeffs { hor: [[1024, 0, 0, 0, 0, 0, 0, 0]; 6], ver: [[1024, 0, 0, 0, 0, 0, 0, 0]; 6] }; |
| 122 | const ZERO_PRED_COEFFS2: PredCoeffs = PredCoeffs { hor: [[0x7FFF, 0, 0, 0, 0, 0, 0, 0]; 6], ver: [[0x7FFF, 0, 0, 0, 0, 0, 0, 0]; 6] }; |
| 123 | |
| 124 | pub const H263DEC_OPT_USES_GOB: u32 = 0x0001; |
| 125 | pub const H263DEC_OPT_SLICE_RESET: u32 = 0x0002; |
| 126 | pub const H263DEC_OPT_HAS_B_FRAMES: u32 = 0x0004; |
| 127 | pub const H263DEC_OPT_HAS_OBMC: u32 = 0x0008; |
| 128 | pub const H263DEC_OPT_PRED_QUANT: u32 = 0x0010; |
| 129 | |
| 130 | pub struct H263BaseDecoder { |
| 131 | w: usize, |
| 132 | h: usize, |
| 133 | mb_w: usize, |
| 134 | mb_h: usize, |
| 135 | num_mb: usize, |
| 136 | ftype: Type, |
| 137 | ipbs: IPBShuffler, |
| 138 | next_ts: u16, |
| 139 | last_ts: u16, |
| 140 | tsdiff: u16, |
| 141 | has_b: bool, |
| 142 | b_data: Vec<BMB>, |
| 143 | pred_coeffs: Vec<PredCoeffs>, |
| 144 | is_gob: bool, |
| 145 | slice_reset: bool, |
| 146 | may_have_b_frames: bool, |
| 147 | has_obmc: bool, |
| 148 | mv_data: Vec<BlockMVInfo>, |
| 149 | blk: [[i16; 64]; 6], |
| 150 | obmc_buf: NAVideoBufferRef<u8>, |
| 151 | obmc_blk: Vec<(Type, BMB)>, |
| 152 | pred_quant: bool, |
| 153 | } |
| 154 | |
| 155 | #[inline] |
| 156 | fn clip_dc(dc: i16) -> i16 { |
| 157 | if dc <= 0 { 0 } |
| 158 | else if dc > 2046 { 2047 } |
| 159 | else { dc | 1 } |
| 160 | } |
| 161 | |
| 162 | #[inline] |
| 163 | fn clip_ac(ac: i16) -> i16 { |
| 164 | if ac < -2048 { -2048 } |
| 165 | else if ac > 2047 { 2047 } |
| 166 | else { ac } |
| 167 | } |
| 168 | |
| 169 | #[allow(dead_code)] |
| 170 | impl H263BaseDecoder { |
| 171 | pub fn new_with_opts(options: u32) -> Self { |
| 172 | let is_gob = (options & H263DEC_OPT_USES_GOB) != 0; |
| 173 | let slice_reset = (options & H263DEC_OPT_SLICE_RESET) != 0; |
| 174 | let may_have_b_frames = (options & H263DEC_OPT_HAS_B_FRAMES) != 0; |
| 175 | let has_obmc = (options & H263DEC_OPT_HAS_OBMC) != 0; |
| 176 | let pred_quant = (options & H263DEC_OPT_PRED_QUANT) != 0; |
| 177 | |
| 178 | let vbuf = alloc_video_buffer(NAVideoInfo::new(64, 64, false, YUV420_FORMAT), 4).unwrap(); |
| 179 | let obmc_buf = vbuf.get_vbuf().unwrap(); |
| 180 | |
| 181 | H263BaseDecoder{ |
| 182 | w: 0, h: 0, mb_w: 0, mb_h: 0, num_mb: 0, |
| 183 | ftype: Type::Special, |
| 184 | ipbs: IPBShuffler::new(), |
| 185 | last_ts: 0, next_ts: 0, tsdiff: 0, |
| 186 | has_b: false, b_data: Vec::new(), |
| 187 | pred_coeffs: Vec::new(), |
| 188 | is_gob, slice_reset, |
| 189 | may_have_b_frames, has_obmc, |
| 190 | pred_quant, |
| 191 | mv_data: Vec::new(), |
| 192 | blk: [[0; 64]; 6], |
| 193 | obmc_buf, |
| 194 | obmc_blk: Vec::new(), |
| 195 | } |
| 196 | } |
| 197 | pub fn new(is_gob: bool) -> Self { |
| 198 | Self::new_with_opts(H263DEC_OPT_SLICE_RESET | (if is_gob { H263DEC_OPT_USES_GOB } else { 0 })) |
| 199 | } |
| 200 | pub fn new_b_frames(is_gob: bool) -> Self { |
| 201 | Self::new_with_opts(H263DEC_OPT_SLICE_RESET | H263DEC_OPT_HAS_B_FRAMES | (if is_gob { H263DEC_OPT_USES_GOB } else { 0 })) |
| 202 | } |
| 203 | |
| 204 | pub fn is_intra(&self) -> bool { self.ftype == Type::I } |
| 205 | pub fn get_frame_type(&self) -> FrameType { |
| 206 | match self.ftype { |
| 207 | Type::I => FrameType::I, |
| 208 | Type::P => FrameType::P, |
| 209 | Type::B => FrameType::B, |
| 210 | Type::PB => FrameType::P, |
| 211 | Type::Skip => FrameType::Skip, |
| 212 | Type::Special => FrameType::Skip, |
| 213 | } |
| 214 | } |
| 215 | pub fn get_dimensions(&self) -> (usize, usize) { (self.w, self.h) } |
| 216 | |
| 217 | fn decode_intra_mb(&mut self, bd: &mut dyn BlockDecoder, bdsp: &dyn BlockDSP, mb_pos: usize, binfo: &BlockInfo, sstate: &SliceState, apply_acpred: bool) -> DecoderResult<()> { |
| 218 | for i in 0..6 { |
| 219 | bd.decode_block_intra(&binfo, &sstate, binfo.get_q(), i, (binfo.cbp & (1 << (5 - i))) != 0, &mut self.blk[i])?; |
| 220 | if apply_acpred && (binfo.acpred != ACPredMode::None) { |
| 221 | let has_b = (i == 1) || (i == 3) || !sstate.first_mb; |
| 222 | let has_a = (i == 2) || (i == 3) || !sstate.first_line; |
| 223 | let (b_mb, b_blk) = if has_b { |
| 224 | if (i == 1) || (i == 3) { |
| 225 | (mb_pos, i - 1) |
| 226 | } else if i < 4 { |
| 227 | (mb_pos - 1, i + 1) |
| 228 | } else { |
| 229 | (mb_pos - 1, i) |
| 230 | } |
| 231 | } else { (0, 0) }; |
| 232 | let (a_mb, a_blk) = if has_a { |
| 233 | if (i == 2) || (i == 3) { |
| 234 | (mb_pos, i - 2) |
| 235 | } else if i < 4 { |
| 236 | (mb_pos - self.mb_w, i + 2) |
| 237 | } else { |
| 238 | (mb_pos - self.mb_w, i) |
| 239 | } |
| 240 | } else { (0, 0) }; |
| 241 | match binfo.acpred { |
| 242 | ACPredMode::DC => { |
| 243 | let dc; |
| 244 | if has_a && has_b { |
| 245 | dc = (self.pred_coeffs[b_mb].hor[b_blk][0] + self.pred_coeffs[a_mb].ver[a_blk][0]) / 2; |
| 246 | } else if has_a { |
| 247 | dc = self.pred_coeffs[a_mb].ver[a_blk][0]; |
| 248 | } else if has_b { |
| 249 | dc = self.pred_coeffs[b_mb].hor[b_blk][0]; |
| 250 | } else { |
| 251 | dc = 1024; |
| 252 | } |
| 253 | self.blk[i][0] = clip_dc(self.blk[i][0] + dc); |
| 254 | }, |
| 255 | ACPredMode::Hor => { |
| 256 | if has_b { |
| 257 | for k in 0..8 { |
| 258 | self.blk[i][k * 8] += self.pred_coeffs[b_mb].hor[b_blk][k]; |
| 259 | } |
| 260 | for k in 1..8 { |
| 261 | self.blk[i][k * 8] = clip_ac(self.blk[i][k * 8]); |
| 262 | } |
| 263 | } else { |
| 264 | self.blk[i][0] += 1024; |
| 265 | } |
| 266 | self.blk[i][0] = clip_dc(self.blk[i][0]); |
| 267 | }, |
| 268 | ACPredMode::Ver => { |
| 269 | if has_a { |
| 270 | for k in 0..8 { |
| 271 | self.blk[i][k] += self.pred_coeffs[a_mb].ver[a_blk][k]; |
| 272 | } |
| 273 | for k in 1..8 { |
| 274 | self.blk[i][k] = clip_ac(self.blk[i][k]); |
| 275 | } |
| 276 | } else { |
| 277 | self.blk[i][0] += 1024; |
| 278 | } |
| 279 | self.blk[i][0] = clip_dc(self.blk[i][0]); |
| 280 | }, |
| 281 | ACPredMode::None => {}, |
| 282 | }; |
| 283 | for t in 0..8 { self.pred_coeffs[mb_pos].hor[i][t] = self.blk[i][t * 8]; } |
| 284 | for t in 0..8 { self.pred_coeffs[mb_pos].ver[i][t] = self.blk[i][t]; } |
| 285 | } |
| 286 | bdsp.idct(&mut self.blk[i]); |
| 287 | } |
| 288 | Ok(()) |
| 289 | } |
| 290 | #[allow(clippy::comparison_chain)] |
| 291 | fn decode_intra_mb_pred_quant(&mut self, bd: &mut dyn BlockDecoder, bdsp: &dyn BlockDSP, mb_pos: usize, binfo: &BlockInfo, sstate: &SliceState, apply_acpred: bool) -> DecoderResult<()> { |
| 292 | for i in 0..6 { |
| 293 | bd.decode_block_intra(&binfo, &sstate, binfo.get_q(), i, (binfo.cbp & (1 << (5 - i))) != 0, &mut self.blk[i])?; |
| 294 | let q = if binfo.get_q() < 8 { |
| 295 | 8 |
| 296 | } else { |
| 297 | i16::from(binfo.get_q() * 2) |
| 298 | }; |
| 299 | let qadd = (q + 1) >> 1; |
| 300 | let quant_gray = 1024 / q; |
| 301 | if apply_acpred && (binfo.acpred != ACPredMode::None) { |
| 302 | let has_b = (i == 1) || (i == 3) || !sstate.first_mb; |
| 303 | let has_a = (i == 2) || (i == 3) || !sstate.first_line; |
| 304 | let (b_mb, b_blk) = if has_b { |
| 305 | if (i == 1) || (i == 3) { |
| 306 | (mb_pos, i - 1) |
| 307 | } else if i < 4 { |
| 308 | (mb_pos - 1, i + 1) |
| 309 | } else { |
| 310 | (mb_pos - 1, i) |
| 311 | } |
| 312 | } else { (0, 0) }; |
| 313 | let (a_mb, a_blk) = if has_a { |
| 314 | if (i == 2) || (i == 3) { |
| 315 | (mb_pos, i - 2) |
| 316 | } else if i < 4 { |
| 317 | (mb_pos - self.mb_w, i + 2) |
| 318 | } else { |
| 319 | (mb_pos - self.mb_w, i) |
| 320 | } |
| 321 | } else { (0, 0) }; |
| 322 | let dc_a = if has_a && self.pred_coeffs[a_mb].ver[a_blk][0] != 0x7FFF { |
| 323 | self.pred_coeffs[a_mb].ver[a_blk][0] |
| 324 | } else { |
| 325 | quant_gray |
| 326 | }; |
| 327 | let dc_b = if has_b && self.pred_coeffs[b_mb].hor[b_blk][0] != 0x7FFF { |
| 328 | self.pred_coeffs[b_mb].hor[b_blk][0] |
| 329 | } else { |
| 330 | quant_gray |
| 331 | }; |
| 332 | let dc = match binfo.acpred { |
| 333 | ACPredMode::DC => { |
| 334 | if has_a && has_b { |
| 335 | (dc_a + dc_b + 1) >> 1 |
| 336 | } else if has_a { |
| 337 | dc_a |
| 338 | } else if has_b { |
| 339 | dc_b |
| 340 | } else { |
| 341 | quant_gray |
| 342 | } |
| 343 | }, |
| 344 | ACPredMode::Hor => { |
| 345 | if has_b { |
| 346 | for k in 1..8 { |
| 347 | self.blk[i][k * 8] += self.pred_coeffs[b_mb].hor[b_blk][k]; |
| 348 | } |
| 349 | for k in 1..8 { |
| 350 | self.blk[i][k * 8] = clip_ac(self.blk[i][k * 8]); |
| 351 | } |
| 352 | dc_b |
| 353 | } else { |
| 354 | quant_gray |
| 355 | } |
| 356 | }, |
| 357 | ACPredMode::Ver => { |
| 358 | if has_a { |
| 359 | for k in 1..8 { |
| 360 | self.blk[i][k] += self.pred_coeffs[a_mb].ver[a_blk][k]; |
| 361 | } |
| 362 | for k in 1..8 { |
| 363 | self.blk[i][k] = clip_ac(self.blk[i][k]); |
| 364 | } |
| 365 | dc_a |
| 366 | } else { |
| 367 | quant_gray |
| 368 | } |
| 369 | }, |
| 370 | ACPredMode::None => { 0 }, |
| 371 | }; |
| 372 | self.blk[i][0] += dc; |
| 373 | for t in 0..8 { self.pred_coeffs[mb_pos].hor[i][t] = self.blk[i][t * 8]; } |
| 374 | for t in 0..8 { self.pred_coeffs[mb_pos].ver[i][t] = self.blk[i][t]; } |
| 375 | } |
| 376 | if apply_acpred { |
| 377 | let start = if binfo.get_q() < 8 { |
| 378 | self.blk[i][0] <<= 3; |
| 379 | 1 |
| 380 | } else { |
| 381 | 0 |
| 382 | }; |
| 383 | for el in self.blk[i].iter_mut().skip(start) { |
| 384 | if *el > 0 { |
| 385 | *el = *el * q + qadd; |
| 386 | } else if *el < 0 { |
| 387 | *el = *el * q - qadd; |
| 388 | } |
| 389 | } |
| 390 | } |
| 391 | bdsp.idct(&mut self.blk[i]); |
| 392 | } |
| 393 | Ok(()) |
| 394 | } |
| 395 | fn decode_inter_mb(&mut self, bd: &mut dyn BlockDecoder, bdsp: &dyn BlockDSP, binfo: &BlockInfo, sstate: &SliceState) -> DecoderResult<()> { |
| 396 | for i in 0..6 { |
| 397 | bd.decode_block_inter(&binfo, &sstate, binfo.get_q(), i, ((binfo.cbp >> (5 - i)) & 1) != 0, &mut self.blk[i])?; |
| 398 | bdsp.idct(&mut self.blk[i]); |
| 399 | } |
| 400 | Ok(()) |
| 401 | } |
| 402 | fn get_obmc_mv(&self, mb_idx: usize, blk_no: usize, cur_mv: MV) -> MV { |
| 403 | let (mbt, ref bi) = self.obmc_blk[mb_idx]; |
| 404 | if mbt == Type::I { |
| 405 | cur_mv |
| 406 | } else if mbt == Type::Skip { |
| 407 | ZERO_MV |
| 408 | } else if bi.num_mv == 1 { |
| 409 | bi.mv_f[0] |
| 410 | } else { |
| 411 | bi.mv_f[blk_no] |
| 412 | } |
| 413 | } |
| 414 | #[allow(clippy::cognitive_complexity)] |
| 415 | fn reconstruct_obmc(&mut self, buf: &mut NAVideoBuffer<u8>, slice_start: usize, start: usize, end: usize, slice_end: bool) -> usize { |
| 416 | let mut mb_x = start % self.mb_w; |
| 417 | let mut mb_y = start / self.mb_w; |
| 418 | let mut mb_pos = start; |
| 419 | while mb_pos < end { |
| 420 | let has_top = mb_pos >= slice_start + self.mb_w; |
| 421 | let has_left = (mb_x > 0) && (mb_pos > slice_start); |
| 422 | let has_right = (mb_x + 1 < self.mb_w) && (mb_pos + 1 < end); |
| 423 | let has_bottom = mb_pos + self.mb_w < end; |
| 424 | |
| 425 | if !has_bottom && !slice_end { |
| 426 | break; |
| 427 | } |
| 428 | |
| 429 | let (mbt, ref bi) = self.obmc_blk[mb_pos]; |
| 430 | if mbt == Type::P || mbt == Type::Skip { |
| 431 | let single_mv = bi.num_mv != 4; |
| 432 | for blk in 0..4 { |
| 433 | let cur_mv = if single_mv { bi.mv_f[0] } else { bi.mv_f[blk] }; |
| 434 | let top_mv = if (blk & 2) == 0 { |
| 435 | if has_top { |
| 436 | self.get_obmc_mv(mb_pos - self.mb_w, blk + 2, cur_mv) |
| 437 | } else { cur_mv } |
| 438 | } else { |
| 439 | if single_mv { cur_mv } else { bi.mv_f[blk - 2] } |
| 440 | }; |
| 441 | let left_mv = if (blk & 1) == 0 { |
| 442 | if has_left { |
| 443 | self.get_obmc_mv(mb_pos - 1, blk + 1, cur_mv) |
| 444 | } else { cur_mv } |
| 445 | } else { |
| 446 | if single_mv { cur_mv } else { bi.mv_f[blk - 1] } |
| 447 | }; |
| 448 | let bottom_mv = if (blk & 2) != 0 { |
| 449 | if has_bottom { |
| 450 | self.get_obmc_mv(mb_pos + self.mb_w, blk - 2, cur_mv) |
| 451 | } else { cur_mv } |
| 452 | } else { |
| 453 | if single_mv { cur_mv } else { bi.mv_f[blk + 2] } |
| 454 | }; |
| 455 | let right_mv = if (blk & 1) != 0 { |
| 456 | if has_right { |
| 457 | self.get_obmc_mv(mb_pos + 1, blk - 1, cur_mv) |
| 458 | } else { cur_mv } |
| 459 | } else { |
| 460 | if single_mv { cur_mv } else { bi.mv_f[blk + 1] } |
| 461 | }; |
| 462 | |
| 463 | let mut obmcbuf = NASimpleVideoFrame::from_video_buf(&mut self.obmc_buf).unwrap(); |
| 464 | |
| 465 | if let Some(ref srcbuf) = self.ipbs.get_lastref() { |
| 466 | let dx = (mb_x * 16 + (blk & 1) * 8) as i16; |
| 467 | let dy = (mb_y * 16 + (blk & 2) * 4) as i16; |
| 468 | |
| 469 | let block_params = [(8, 0, top_mv), (0, 8, left_mv), (8, 8, cur_mv), (16, 8, right_mv), (8, 16, bottom_mv)]; |
| 470 | |
| 471 | for (off_x, off_y, mv) in block_params.iter() { |
| 472 | let mx = dx + (mv.x >> 1) - off_x; |
| 473 | let my = dy + (mv.y >> 1) - off_y; |
| 474 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; |
| 475 | blockdsp::copy_block(&mut obmcbuf, srcbuf.clone(), 0, |
| 476 | *off_x as usize, *off_y as usize, mx, my, |
| 477 | 8, 8, 0, 1, mode, H263_INTERP_FUNCS); |
| 478 | } |
| 479 | let stride = buf.get_stride(0); |
| 480 | let off = buf.get_offset(0) + (dx as usize) + (dy as usize) * stride; |
| 481 | let data = buf.get_data_mut().unwrap(); |
| 482 | obmc_filter(&mut data[off..], stride, obmcbuf.data, obmcbuf.stride[0]); |
| 483 | } |
| 484 | } |
| 485 | if let Some(ref srcbuf) = self.ipbs.get_lastref() { |
| 486 | let mut dst = NASimpleVideoFrame::from_video_buf(buf).unwrap(); |
| 487 | let xpos = mb_x * 8; |
| 488 | let ypos = mb_y * 8; |
| 489 | |
| 490 | let (mvx, mvy, cmode) = if single_mv { |
| 491 | let mv = bi.mv_f[0]; |
| 492 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); |
| 493 | (mv.x >> 2, mv.y >> 2, cmode) |
| 494 | } else { |
| 495 | let sum_mv = bi.mv_f[0] + bi.mv_f[1] + bi.mv_f[2] + bi.mv_f[3]; |
| 496 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; |
| 497 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; |
| 498 | let cmode = ((cmx & 1) + (cmy & 1) * 2) as usize; |
| 499 | (cmx, cmy, cmode) |
| 500 | }; |
| 501 | blockdsp::copy_block(&mut dst, srcbuf.clone(), 1, xpos, ypos, mvx, mvy, 8, 8, 0, 1, cmode, H263_INTERP_FUNCS); |
| 502 | blockdsp::copy_block(&mut dst, srcbuf.clone(), 2, xpos, ypos, mvx, mvy, 8, 8, 0, 1, cmode, H263_INTERP_FUNCS); |
| 503 | } |
| 504 | if mbt != Type::Skip { |
| 505 | blockdsp::add_blocks(buf, mb_x, mb_y, &bi.blk); |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | mb_pos += 1; |
| 510 | mb_x += 1; |
| 511 | if mb_x == self.mb_w { |
| 512 | mb_x = 0; |
| 513 | mb_y += 1; |
| 514 | } |
| 515 | } |
| 516 | mb_pos |
| 517 | } |
| 518 | #[allow(clippy::cognitive_complexity)] |
| 519 | pub fn parse_frame(&mut self, bd: &mut dyn BlockDecoder, bdsp: &dyn BlockDSP) -> DecoderResult<NABufferType> { |
| 520 | let pinfo = bd.decode_pichdr()?; |
| 521 | let mut mvi = MVInfo::new(); |
| 522 | let mut mvi2 = MVInfo::new(); |
| 523 | let mut cbpi = CBPInfo::new(); |
| 524 | |
| 525 | //todo handle res change |
| 526 | self.w = pinfo.w; |
| 527 | self.h = pinfo.h; |
| 528 | self.mb_w = (pinfo.w + 15) >> 4; |
| 529 | self.mb_h = (pinfo.h + 15) >> 4; |
| 530 | self.num_mb = self.mb_w * self.mb_h; |
| 531 | self.ftype = pinfo.mode; |
| 532 | self.has_b = pinfo.is_pb(); |
| 533 | |
| 534 | let do_obmc = self.has_obmc && (pinfo.mode == Type::P); |
| 535 | |
| 536 | if do_obmc { |
| 537 | let capacity = self.obmc_blk.capacity(); |
| 538 | if capacity < self.num_mb { |
| 539 | self.obmc_blk.reserve(self.num_mb - capacity); |
| 540 | } |
| 541 | self.obmc_blk.clear(); |
| 542 | } |
| 543 | |
| 544 | if self.has_b { |
| 545 | self.mv_data.clear(); |
| 546 | } |
| 547 | |
| 548 | let save_b_data = pinfo.mode.is_ref() && self.may_have_b_frames; |
| 549 | if save_b_data { |
| 550 | self.mv_data.clear(); |
| 551 | } |
| 552 | let is_b = pinfo.mode == Type::B; |
| 553 | |
| 554 | if is_b && (self.mv_data.len() < self.mb_w * self.mb_h) { |
| 555 | return Err(DecoderError::MissingReference); |
| 556 | } |
| 557 | |
| 558 | let tsdiff = if pinfo.is_pb() { pinfo.ts.wrapping_sub(self.last_ts) >> 1 } |
| 559 | else { self.last_ts.wrapping_sub(self.next_ts) >> 1 }; |
| 560 | let bsdiff = if pinfo.is_pb() { (pinfo.get_pbinfo().get_trb() as u16) << 7 } |
| 561 | else { pinfo.ts.wrapping_sub(self.next_ts) >> 1 }; |
| 562 | |
| 563 | let fmt = formats::YUV420_FORMAT; |
| 564 | let vinfo = NAVideoInfo::new(self.w, self.h, false, fmt); |
| 565 | let bufinfo = alloc_video_buffer(vinfo, 4)?; |
| 566 | let mut buf = bufinfo.get_vbuf().unwrap(); |
| 567 | |
| 568 | let mut slice = if self.is_gob { |
| 569 | SliceInfo::get_default_slice(&pinfo) |
| 570 | } else { |
| 571 | bd.decode_slice_header(&pinfo)? |
| 572 | }; |
| 573 | mvi.reset(self.mb_w, 0, pinfo.get_mvmode()); |
| 574 | if is_b || pinfo.is_pb() { |
| 575 | mvi2.reset(self.mb_w, 0, pinfo.get_mvmode()); |
| 576 | } |
| 577 | cbpi.reset(self.mb_w); |
| 578 | |
| 579 | let mut sstate = SliceState::new(pinfo.mode == Type::I); |
| 580 | let mut mb_pos = 0; |
| 581 | let apply_acpred = /*(pinfo.mode == Type::I) && */pinfo.plusinfo.is_some() && pinfo.plusinfo.unwrap().aic; |
| 582 | if apply_acpred { |
| 583 | self.pred_coeffs.clear(); |
| 584 | if !self.pred_quant { |
| 585 | self.pred_coeffs.resize(self.mb_w * self.mb_h, ZERO_PRED_COEFFS); |
| 586 | } else { |
| 587 | self.pred_coeffs.resize(self.mb_w * self.mb_h, ZERO_PRED_COEFFS2); |
| 588 | } |
| 589 | } |
| 590 | sstate.quant = slice.quant; |
| 591 | let mut obmc_start = 0; |
| 592 | let mut slice_start = 0; |
| 593 | for mb_y in 0..self.mb_h { |
| 594 | for mb_x in 0..self.mb_w { |
| 595 | self.blk = [[0; 64]; 6]; |
| 596 | |
| 597 | if slice.is_at_end(mb_pos) || (slice.needs_check() && mb_pos > 0 && bd.is_slice_end()) { |
| 598 | if do_obmc { |
| 599 | self.reconstruct_obmc(&mut buf, slice_start, obmc_start, mb_pos, true); |
| 600 | obmc_start = mb_pos; |
| 601 | slice_start = mb_pos; |
| 602 | } |
| 603 | slice = bd.decode_slice_header(&pinfo)?; |
| 604 | if self.is_gob || self.slice_reset { |
| 605 | mvi.reset(self.mb_w, mb_x, pinfo.get_mvmode()); |
| 606 | if is_b || pinfo.is_pb() { |
| 607 | mvi2.reset(self.mb_w, mb_x, pinfo.get_mvmode()); |
| 608 | } |
| 609 | cbpi.reset(self.mb_w); |
| 610 | sstate.reset_slice(mb_x, mb_y); |
| 611 | sstate.quant = slice.quant; |
| 612 | } |
| 613 | } |
| 614 | |
| 615 | let binfo = bd.decode_block_header(&pinfo, &slice, &sstate)?; |
| 616 | let cbp = binfo.get_cbp(); |
| 617 | cbpi.set_cbp(mb_x, cbp); |
| 618 | cbpi.set_q(mb_x, binfo.get_q()); |
| 619 | sstate.quant = binfo.get_q(); |
| 620 | if binfo.is_intra() { |
| 621 | if save_b_data { |
| 622 | self.mv_data.push(BlockMVInfo::Intra); |
| 623 | } |
| 624 | if !self.pred_quant { |
| 625 | self.decode_intra_mb(bd, bdsp, mb_pos, &binfo, &sstate, apply_acpred)?; |
| 626 | } else { |
| 627 | self.decode_intra_mb_pred_quant(bd, bdsp, mb_pos, &binfo, &sstate, apply_acpred)?; |
| 628 | } |
| 629 | blockdsp::put_blocks(&mut buf, mb_x, mb_y, &self.blk); |
| 630 | mvi.set_zero_mv(mb_x); |
| 631 | if is_b { |
| 632 | mvi2.set_zero_mv(mb_x); |
| 633 | } else if pinfo.is_pb() { |
| 634 | mvi.predict(mb_x, 0, false, binfo.get_mv2(0), sstate.first_line, sstate.first_mb); |
| 635 | mvi2.predict(mb_x, 0, false, binfo.get_mv2(0), sstate.first_line, sstate.first_mb); |
| 636 | } |
| 637 | if do_obmc { |
| 638 | //todo: use MV from PB-part if available |
| 639 | self.obmc_blk.push((Type::I, BMB::new())); |
| 640 | } |
| 641 | } else if (binfo.mode != Type::B) && !binfo.is_skipped() { |
| 642 | if binfo.get_num_mvs() == 1 { |
| 643 | let mv = mvi.predict(mb_x, 0, false, binfo.get_mv(0), sstate.first_line, sstate.first_mb); |
| 644 | if save_b_data { |
| 645 | self.mv_data.push(BlockMVInfo::Inter_1MV(mv)); |
| 646 | } |
| 647 | if let Some(ref srcbuf) = self.ipbs.get_lastref() { |
| 648 | bdsp.copy_blocks(&mut buf, srcbuf.clone(), mb_x * 16, mb_y * 16, mv); |
| 649 | } |
| 650 | if pinfo.is_pb() { |
| 651 | mvi2.predict(mb_x, 0, false, binfo.get_mv(0), sstate.first_line, sstate.first_mb); |
| 652 | } |
| 653 | if do_obmc { |
| 654 | let mut blki = BMB::new(); |
| 655 | blki.mv_f[0] = mv; |
| 656 | blki.num_mv = 1; |
| 657 | self.obmc_blk.push((Type::P, blki)); |
| 658 | } |
| 659 | } else { |
| 660 | let mut mv: [MV; 4] = [ZERO_MV, ZERO_MV, ZERO_MV, ZERO_MV]; |
| 661 | for blk_no in 0..4 { |
| 662 | mv[blk_no] = mvi.predict(mb_x, blk_no, true, binfo.get_mv(blk_no), sstate.first_line, sstate.first_mb); |
| 663 | } |
| 664 | if let Some(ref srcbuf) = self.ipbs.get_lastref() { |
| 665 | bdsp.copy_blocks8x8(&mut buf, srcbuf.clone(), mb_x * 16, mb_y * 16, &mv); |
| 666 | } |
| 667 | if pinfo.is_pb() { |
| 668 | for blk_no in 0..4 { |
| 669 | mvi2.predict(mb_x, blk_no, true, binfo.get_mv(blk_no), sstate.first_line, sstate.first_mb); |
| 670 | } |
| 671 | } |
| 672 | if save_b_data { |
| 673 | self.mv_data.push(BlockMVInfo::Inter_4MV(mv)); |
| 674 | } |
| 675 | if do_obmc { |
| 676 | let mut blki = BMB::new(); |
| 677 | blki.mv_f = mv; |
| 678 | blki.num_mv = 4; |
| 679 | self.obmc_blk.push((Type::P, blki)); |
| 680 | } |
| 681 | } |
| 682 | self.decode_inter_mb(bd, bdsp, &binfo, &sstate)?; |
| 683 | if !do_obmc { |
| 684 | blockdsp::add_blocks(&mut buf, mb_x, mb_y, &self.blk); |
| 685 | } else { |
| 686 | let (_, ref mut bi) = self.obmc_blk[mb_pos]; |
| 687 | bi.blk = self.blk; |
| 688 | } |
| 689 | if is_b && !pinfo.is_pb() { |
| 690 | mvi2.set_zero_mv(mb_x); |
| 691 | } |
| 692 | } else if binfo.mode != Type::B { |
| 693 | self.mv_data.push(BlockMVInfo::Inter_1MV(ZERO_MV)); |
| 694 | mvi.set_zero_mv(mb_x); |
| 695 | if is_b || pinfo.is_pb() { |
| 696 | mvi2.set_zero_mv(mb_x); |
| 697 | } |
| 698 | if !do_obmc { |
| 699 | if let Some(ref srcbuf) = self.ipbs.get_lastref() { |
| 700 | bdsp.copy_blocks(&mut buf, srcbuf.clone(), mb_x * 16, mb_y * 16, ZERO_MV); |
| 701 | } |
| 702 | } else { |
| 703 | self.obmc_blk.push((Type::Skip, BMB::new())); |
| 704 | } |
| 705 | } else { |
| 706 | recon_b_mb(&mut buf, &mut self.ipbs, bdsp, &mut mvi, &mut mvi2, mb_pos, self.mb_w, &sstate, &binfo, &self.mv_data, bsdiff, tsdiff); |
| 707 | if cbp != 0 { |
| 708 | self.decode_inter_mb(bd, bdsp, &binfo, &sstate)?; |
| 709 | blockdsp::add_blocks(&mut buf, mb_x, mb_y, &self.blk); |
| 710 | } |
| 711 | } |
| 712 | if pinfo.is_pb() { |
| 713 | let mut b_mb = BMB::new(); |
| 714 | let cbp = binfo.get_cbp_b(); |
| 715 | let bq = (((pinfo.get_pbinfo().get_dbquant() + 5) as u16) * (binfo.get_q() as u16)) >> 2; |
| 716 | let bquant; |
| 717 | if bq < 1 { bquant = 1; } |
| 718 | else if bq > 31 { bquant = 31; } |
| 719 | else { bquant = bq as u8; } |
| 720 | |
| 721 | b_mb.cbp = cbp; |
| 722 | for i in 0..6 { |
| 723 | bd.decode_block_inter(&binfo, &sstate, bquant, i, (cbp & (1 << (5 - i))) != 0, &mut b_mb.blk[i])?; |
| 724 | bdsp.idct(&mut b_mb.blk[i]); |
| 725 | } |
| 726 | |
| 727 | let is_fwd = binfo.is_b_fwd(); |
| 728 | b_mb.fwd = is_fwd; |
| 729 | if binfo.get_num_mvs() != 4 { |
| 730 | let ref_mv = mvi2.get_mv(mb_x, 0); |
| 731 | let b_mv = if binfo.is_intra() { binfo.get_mv2(1) } else { binfo.get_mv2(0) }; |
| 732 | let src_mv = if is_fwd { ZERO_MV } else { ref_mv.scale(bsdiff, tsdiff) }; |
| 733 | let mv_f = MV::add_umv(src_mv, b_mv, pinfo.get_mvmode()); |
| 734 | let mv_b = MV::b_sub(ref_mv, mv_f, b_mv, bsdiff, tsdiff); |
| 735 | b_mb.mv_f[0] = mv_f; |
| 736 | b_mb.mv_b[0] = mv_b; |
| 737 | b_mb.num_mv = 1; |
| 738 | } else { |
| 739 | for blk_no in 0..4 { |
| 740 | let src_mv = if is_fwd { ZERO_MV } else { mvi2.get_mv(mb_x, blk_no).scale(bsdiff, tsdiff) }; |
| 741 | let mv_f = MV::add_umv(src_mv, binfo.get_mv2(0), pinfo.get_mvmode()); |
| 742 | let mv_b = MV::b_sub(mvi2.get_mv(mb_x, blk_no), mv_f, binfo.get_mv2(0), bsdiff, tsdiff); |
| 743 | b_mb.mv_f[blk_no] = mv_f; |
| 744 | b_mb.mv_b[blk_no] = mv_b; |
| 745 | } |
| 746 | b_mb.num_mv = 4; |
| 747 | } |
| 748 | self.b_data.push(b_mb); |
| 749 | } |
| 750 | sstate.next_mb(); |
| 751 | mb_pos += 1; |
| 752 | } |
| 753 | if do_obmc && (mb_pos > obmc_start + self.mb_w) { |
| 754 | obmc_start = self.reconstruct_obmc(&mut buf, slice_start, obmc_start, mb_pos - self.mb_w, false); |
| 755 | } else if let Some(plusinfo) = pinfo.plusinfo { |
| 756 | if plusinfo.deblock { |
| 757 | bdsp.filter_row(&mut buf, mb_y, self.mb_w, &cbpi); |
| 758 | } |
| 759 | } |
| 760 | mvi.update_row(); |
| 761 | if is_b || pinfo.is_pb() { |
| 762 | mvi2.update_row(); |
| 763 | } |
| 764 | cbpi.update_row(); |
| 765 | sstate.new_row(); |
| 766 | } |
| 767 | if do_obmc { |
| 768 | self.reconstruct_obmc(&mut buf, slice_start, obmc_start, mb_pos, true); |
| 769 | } |
| 770 | |
| 771 | if pinfo.mode.is_ref() { |
| 772 | self.ipbs.add_frame(buf); |
| 773 | self.next_ts = self.last_ts; |
| 774 | self.last_ts = pinfo.ts; |
| 775 | self.tsdiff = tsdiff; |
| 776 | } |
| 777 | |
| 778 | Ok(bufinfo) |
| 779 | } |
| 780 | pub fn flush(&mut self) { |
| 781 | self.ipbs.clear(); |
| 782 | } |
| 783 | |
| 784 | pub fn get_bframe(&mut self, bdsp: &dyn BlockDSP) -> DecoderResult<NABufferType> { |
| 785 | if !self.has_b || self.ipbs.get_lastref().is_none() || self.ipbs.get_nextref().is_none() { |
| 786 | return Err(DecoderError::MissingReference); |
| 787 | } |
| 788 | self.has_b = false; |
| 789 | |
| 790 | let fmt = formats::YUV420_FORMAT; |
| 791 | let vinfo = NAVideoInfo::new(self.w, self.h, false, fmt); |
| 792 | let bufinfo = alloc_video_buffer(vinfo, 4)?; |
| 793 | let b_buf = bufinfo.get_vbuf().unwrap(); |
| 794 | |
| 795 | if let (Some(ref bck_buf), Some(ref fwd_buf)) = (self.ipbs.get_b_bwdref(), self.ipbs.get_b_fwdref()) { |
| 796 | recon_b_frame(b_buf, bck_buf.clone(), fwd_buf.clone(), self.mb_w, self.mb_h, self.b_data.as_slice(), bdsp); |
| 797 | } |
| 798 | |
| 799 | self.b_data.clear(); |
| 800 | Ok(bufinfo) |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | fn recon_b_mb(buf: &mut NAVideoBuffer<u8>, ipbs: &mut IPBShuffler, bdsp: &dyn BlockDSP, mvi: &mut MVInfo, mvi2: &mut MVInfo, mb_pos: usize, mb_w: usize, sstate: &SliceState, binfo: &BlockInfo, mv_data: &[BlockMVInfo], bsdiff: u16, tsdiff: u16) { |
| 805 | let mb_x = mb_pos % mb_w; |
| 806 | let mb_y = mb_pos / mb_w; |
| 807 | |
| 808 | let ref_mv_info = mv_data[mb_pos]; |
| 809 | let has_fwd = binfo.get_num_mvs() > 0; |
| 810 | let has_bwd = binfo.get_num_mvs2() > 0; |
| 811 | |
| 812 | if has_fwd || has_bwd { |
| 813 | let fwd_mv; |
| 814 | if has_fwd { |
| 815 | fwd_mv = mvi.predict(mb_x, 0, false, binfo.get_mv(0), sstate.first_line, sstate.first_mb); |
| 816 | } else { |
| 817 | fwd_mv = ZERO_MV; |
| 818 | mvi.set_zero_mv(mb_x); |
| 819 | } |
| 820 | let bwd_mv; |
| 821 | if has_bwd { |
| 822 | bwd_mv = mvi2.predict(mb_x, 0, false, binfo.get_mv2(0), sstate.first_line, sstate.first_mb); |
| 823 | } else { |
| 824 | bwd_mv = ZERO_MV; |
| 825 | mvi2.set_zero_mv(mb_x); |
| 826 | } |
| 827 | if let (Some(ref fwd_buf), Some(ref bck_buf)) = (ipbs.get_nextref(), ipbs.get_lastref()) { |
| 828 | if has_fwd && has_bwd { |
| 829 | bdsp.copy_blocks(buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, fwd_mv); |
| 830 | bdsp.avg_blocks (buf, bck_buf.clone(), mb_x * 16, mb_y * 16, bwd_mv); |
| 831 | } else if has_fwd { |
| 832 | bdsp.copy_blocks(buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, fwd_mv); |
| 833 | } else { |
| 834 | bdsp.copy_blocks(buf, bck_buf.clone(), mb_x * 16, mb_y * 16, bwd_mv); |
| 835 | } |
| 836 | } |
| 837 | } else { |
| 838 | if let BlockMVInfo::Inter_4MV(mvs) = ref_mv_info { |
| 839 | let mut mv_f = [ZERO_MV; 4]; |
| 840 | let mut mv_b = [ZERO_MV; 4]; |
| 841 | for blk_no in 0..4 { |
| 842 | let ref_mv = mvs[blk_no]; |
| 843 | let ref_mv_fwd = ref_mv.scale(bsdiff, tsdiff); |
| 844 | let ref_mv_bwd = ref_mv - ref_mv_fwd; |
| 845 | mv_f[blk_no] = ref_mv_fwd; |
| 846 | mv_b[blk_no] = ref_mv_bwd; |
| 847 | } |
| 848 | if let (Some(ref fwd_buf), Some(ref bck_buf)) = (ipbs.get_nextref(), ipbs.get_lastref()) { |
| 849 | bdsp.copy_blocks8x8(buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, &mv_f); |
| 850 | bdsp.avg_blocks8x8 (buf, bck_buf.clone(), mb_x * 16, mb_y * 16, &mv_b); |
| 851 | } |
| 852 | } else { |
| 853 | let ref_mv = if let BlockMVInfo::Inter_1MV(mv_) = ref_mv_info { mv_ } else { ZERO_MV }; |
| 854 | let ref_mv_fwd = ref_mv.scale(bsdiff, tsdiff); |
| 855 | let ref_mv_bwd = MV::b_sub(ref_mv, ref_mv_fwd, ZERO_MV, bsdiff, tsdiff); |
| 856 | |
| 857 | if let (Some(ref fwd_buf), Some(ref bck_buf)) = (ipbs.get_nextref(), ipbs.get_lastref()) { |
| 858 | bdsp.copy_blocks(buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, ref_mv_fwd); |
| 859 | bdsp.avg_blocks (buf, bck_buf.clone(), mb_x * 16, mb_y * 16, ref_mv_bwd); |
| 860 | } |
| 861 | } |
| 862 | mvi.set_zero_mv(mb_x); |
| 863 | mvi2.set_zero_mv(mb_x); |
| 864 | } |
| 865 | } |
| 866 | |
| 867 | fn recon_b_frame(mut b_buf: NAVideoBufferRef<u8>, bck_buf: NAVideoBufferRef<u8>, fwd_buf: NAVideoBufferRef<u8>, |
| 868 | mb_w: usize, mb_h: usize, b_data: &[BMB], bdsp: &dyn BlockDSP) { |
| 869 | let mut cbpi = CBPInfo::new(); |
| 870 | let mut cur_mb = 0; |
| 871 | cbpi.reset(mb_w); |
| 872 | for mb_y in 0..mb_h { |
| 873 | for mb_x in 0..mb_w { |
| 874 | let num_mv = b_data[cur_mb].num_mv; |
| 875 | let is_fwd = b_data[cur_mb].fwd; |
| 876 | let cbp = b_data[cur_mb].cbp; |
| 877 | cbpi.set_cbp(mb_x, cbp); |
| 878 | if num_mv == 1 { |
| 879 | bdsp.copy_blocks(&mut b_buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, b_data[cur_mb].mv_f[0]); |
| 880 | if !is_fwd { |
| 881 | bdsp.avg_blocks(&mut b_buf, bck_buf.clone(), mb_x * 16, mb_y * 16, b_data[cur_mb].mv_b[0]); |
| 882 | } |
| 883 | } else { |
| 884 | bdsp.copy_blocks8x8(&mut b_buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, &b_data[cur_mb].mv_f); |
| 885 | if !is_fwd { |
| 886 | bdsp.avg_blocks8x8(&mut b_buf, bck_buf.clone(), mb_x * 16, mb_y * 16, &b_data[cur_mb].mv_b); |
| 887 | } |
| 888 | } |
| 889 | if cbp != 0 { |
| 890 | blockdsp::add_blocks(&mut b_buf, mb_x, mb_y, &b_data[cur_mb].blk); |
| 891 | } |
| 892 | cur_mb += 1; |
| 893 | } |
| 894 | cbpi.update_row(); |
| 895 | } |
| 896 | } |