| 1 | use nihav_core::codecs::*; |
| 2 | use nihav_core::io::byteio::*; |
| 3 | use super::vp6data::*; |
| 4 | use super::vpcommon::*; |
| 5 | |
| 6 | mod coder; |
| 7 | use coder::*; |
| 8 | mod dsp; |
| 9 | use dsp::MVSearchMode; |
| 10 | mod huff; |
| 11 | use huff::*; |
| 12 | mod mb; |
| 13 | use mb::*; |
| 14 | mod models; |
| 15 | use models::*; |
| 16 | mod ratectl; |
| 17 | use ratectl::*; |
| 18 | mod rdo; |
| 19 | |
| 20 | enum VP6Writer<'a, 'b> { |
| 21 | BoolCoder(BoolEncoder<'a, 'b>), |
| 22 | Huffman(HuffEncoder<'a, 'b>), |
| 23 | } |
| 24 | |
| 25 | #[derive(Default)] |
| 26 | pub struct VP56DCPred { |
| 27 | dc_y: Vec<i16>, |
| 28 | dc_u: Vec<i16>, |
| 29 | dc_v: Vec<i16>, |
| 30 | ldc_y: [i16; 2], |
| 31 | ldc_u: i16, |
| 32 | ldc_v: i16, |
| 33 | ref_y: Vec<u8>, |
| 34 | ref_c: Vec<u8>, |
| 35 | ref_left: u8, |
| 36 | y_idx: usize, |
| 37 | c_idx: usize, |
| 38 | |
| 39 | last_dc: [[i16; 4]; 3], |
| 40 | } |
| 41 | |
| 42 | const INVALID_REF: u8 = 42; |
| 43 | |
| 44 | impl VP56DCPred { |
| 45 | fn new() -> Self { Self::default() } |
| 46 | fn resize(&mut self, mb_w: usize) { |
| 47 | self.dc_y.resize(mb_w * 2 + 2, 0); |
| 48 | self.dc_u.resize(mb_w + 2, 0); |
| 49 | self.dc_v.resize(mb_w + 2, 0); |
| 50 | self.ref_y.resize(mb_w * 2 + 2, INVALID_REF); |
| 51 | self.ref_c.resize(mb_w + 2, INVALID_REF); |
| 52 | self.ref_c[0] = 0; |
| 53 | } |
| 54 | fn reset(&mut self) { |
| 55 | self.update_row(); |
| 56 | for el in self.ref_y.iter_mut().skip(1) { *el = INVALID_REF; } |
| 57 | for el in self.ref_c.iter_mut().skip(1) { *el = INVALID_REF; } |
| 58 | |
| 59 | self.last_dc = [[0; 4]; 3]; |
| 60 | self.last_dc[0][1] = 0x80; |
| 61 | self.last_dc[0][2] = 0x80; |
| 62 | } |
| 63 | fn update_row(&mut self) { |
| 64 | self.y_idx = 1; |
| 65 | self.c_idx = 1; |
| 66 | self.ldc_y = [0; 2]; |
| 67 | self.ldc_u = 0; |
| 68 | self.ldc_v = 0; |
| 69 | self.ref_left = INVALID_REF; |
| 70 | } |
| 71 | fn next_mb(&mut self) { |
| 72 | self.y_idx += 2; |
| 73 | self.c_idx += 1; |
| 74 | } |
| 75 | fn predict_dc(&mut self, mb_type: VPMBType, blk_no: usize, coeffs: &mut [i16; 64], fwd: bool) { |
| 76 | let is_luma = blk_no < 4; |
| 77 | let (plane, dcs) = match blk_no { |
| 78 | 4 => (1, &mut self.dc_u), |
| 79 | 5 => (2, &mut self.dc_v), |
| 80 | _ => (0, &mut self.dc_y), |
| 81 | }; |
| 82 | let (dc_ref, dc_idx) = if is_luma { |
| 83 | (&mut self.ref_y, self.y_idx + (blk_no & 1)) |
| 84 | } else { |
| 85 | (&mut self.ref_c, self.c_idx) |
| 86 | }; |
| 87 | let ref_id = mb_type.get_ref_id(); |
| 88 | let mut dc_pred = 0; |
| 89 | let mut count = 0; |
| 90 | let has_left_blk = is_luma && ((blk_no & 1) == 1); |
| 91 | if has_left_blk || self.ref_left == ref_id { |
| 92 | dc_pred += match blk_no { |
| 93 | 0 | 1 => self.ldc_y[0], |
| 94 | 2 | 3 => self.ldc_y[1], |
| 95 | 4 => self.ldc_u, |
| 96 | _ => self.ldc_v, |
| 97 | }; |
| 98 | count += 1; |
| 99 | } |
| 100 | if dc_ref[dc_idx] == ref_id { |
| 101 | dc_pred += dcs[dc_idx]; |
| 102 | count += 1; |
| 103 | } |
| 104 | if count == 0 { |
| 105 | dc_pred = self.last_dc[ref_id as usize][plane]; |
| 106 | } else if count == 2 { |
| 107 | dc_pred /= 2; |
| 108 | } |
| 109 | if !fwd { |
| 110 | coeffs[0] += dc_pred; |
| 111 | } |
| 112 | |
| 113 | let dc = coeffs[0]; |
| 114 | if blk_no != 4 { // update top block reference only for the second chroma component |
| 115 | dc_ref[dc_idx] = ref_id; |
| 116 | } |
| 117 | match blk_no { |
| 118 | 0 | 1 => { |
| 119 | self.ldc_y[0] = dc; |
| 120 | }, |
| 121 | 2 | 3 => { |
| 122 | self.ldc_y[1] = dc; |
| 123 | }, |
| 124 | 4 => { |
| 125 | self.ldc_u = dc; |
| 126 | }, |
| 127 | _ => { |
| 128 | self.ldc_v = dc; |
| 129 | self.ref_left = ref_id; |
| 130 | }, |
| 131 | }; |
| 132 | dcs[dc_idx] = dc; |
| 133 | |
| 134 | self.last_dc[ref_id as usize][plane] = dc; |
| 135 | if fwd { |
| 136 | coeffs[0] -= dc_pred; |
| 137 | } |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | trait ZeroBlock { |
| 142 | fn no_dc(&self) -> bool; |
| 143 | fn no_ac(&self) -> bool; |
| 144 | } |
| 145 | |
| 146 | impl ZeroBlock for [i16; 64] { |
| 147 | fn no_dc(&self) -> bool { |
| 148 | self[0] == 0 |
| 149 | } |
| 150 | fn no_ac(&self) -> bool { |
| 151 | for &el in self[1..].iter() { |
| 152 | if el != 0 { |
| 153 | return false; |
| 154 | } |
| 155 | } |
| 156 | true |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | struct VP6Encoder { |
| 161 | stream: Option<NAStreamRef>, |
| 162 | pkt: Option<NAPacket>, |
| 163 | key_int: u8, |
| 164 | frmcount: u8, |
| 165 | mb_w: usize, |
| 166 | mb_h: usize, |
| 167 | dc_pred: VP56DCPred, |
| 168 | top_ctx: [Vec<bool>; 4], |
| 169 | mc_buf: NAVideoBufferRef<u8>, |
| 170 | fenc: FrameEncoder, |
| 171 | ratectl: RateControl, |
| 172 | |
| 173 | huffman: bool, |
| 174 | |
| 175 | version: u8, |
| 176 | profile: u8, |
| 177 | |
| 178 | models: VP56Models, |
| 179 | stats: VP56ModelsStat, |
| 180 | pmodels: VP56Models, |
| 181 | |
| 182 | last_frame: NABufferType, |
| 183 | gold_frame: NABufferType, |
| 184 | last_gold: bool, |
| 185 | me_mode: MVSearchMode, |
| 186 | me_range: i16, |
| 187 | |
| 188 | force_q: Option<usize>, |
| 189 | } |
| 190 | |
| 191 | impl VP6Encoder { |
| 192 | fn new() -> Self { |
| 193 | let vt = alloc_video_buffer(NAVideoInfo::new(24, 24, false, VP_YUVA420_FORMAT), 4).unwrap(); |
| 194 | let mc_buf = vt.get_vbuf().unwrap(); |
| 195 | Self { |
| 196 | stream: None, |
| 197 | pkt: None, |
| 198 | key_int: 10, |
| 199 | frmcount: 0, |
| 200 | mb_w: 0, |
| 201 | mb_h: 0, |
| 202 | dc_pred: VP56DCPred::new(), |
| 203 | top_ctx: [Vec::new(), Vec::new(), Vec::new(), Vec::new()], |
| 204 | fenc: FrameEncoder::new(), |
| 205 | ratectl: RateControl::new(), |
| 206 | mc_buf, |
| 207 | |
| 208 | huffman: false, |
| 209 | |
| 210 | version: VERSION_VP60, |
| 211 | profile: VP6_SIMPLE_PROFILE, |
| 212 | |
| 213 | models: VP56Models::new(), |
| 214 | pmodels: VP56Models::new(), |
| 215 | stats: VP56ModelsStat::new(), |
| 216 | |
| 217 | last_frame: NABufferType::None, |
| 218 | gold_frame: NABufferType::None, |
| 219 | last_gold: false, |
| 220 | me_mode: MVSearchMode::default(), |
| 221 | me_range: 16, |
| 222 | |
| 223 | force_q: None, |
| 224 | } |
| 225 | } |
| 226 | fn decide_encoding(&mut self) -> bool { |
| 227 | false |
| 228 | } |
| 229 | fn estimate_blocks(&mut self, is_intra: bool) { |
| 230 | for top_ctx in self.top_ctx.iter_mut() { |
| 231 | for el in top_ctx.iter_mut() { |
| 232 | *el = false; |
| 233 | } |
| 234 | } |
| 235 | let mut last_mbt = VPMBType::InterNoMV; |
| 236 | let mut mb_idx = 0; |
| 237 | for _mb_y in 0..self.mb_h { |
| 238 | let mut left_dc = [false; 4]; |
| 239 | for mb_x in 0..self.mb_w { |
| 240 | let mb_type = self.fenc.mb_types[mb_idx]; |
| 241 | if !is_intra { |
| 242 | estimate_mb_type(mb_type, last_mbt, ((self.fenc.num_mv[mb_idx] + 1) % 3) as usize, &mut self.stats); |
| 243 | last_mbt = mb_type; |
| 244 | match mb_type { |
| 245 | VPMBType::InterMV | VPMBType::GoldenMV => { |
| 246 | estimate_mv(self.fenc.coded_mv[mb_idx][3], &mut self.stats); |
| 247 | }, |
| 248 | VPMBType::InterFourMV => { |
| 249 | for (&sub_type, &mv) in self.fenc.fmv_sub[mb_idx].iter().zip(self.fenc.coded_mv[mb_idx].iter()) { |
| 250 | if sub_type == VPMBType::InterMV { |
| 251 | estimate_mv(mv, &mut self.stats); |
| 252 | } |
| 253 | } |
| 254 | }, |
| 255 | _ => {}, |
| 256 | }; |
| 257 | } |
| 258 | let mb = self.fenc.get_mb(mb_idx); |
| 259 | for i in 0..4 { |
| 260 | let cur_idx = mb_x * 2 + (i & 1); |
| 261 | let mut dc_mode = 0; |
| 262 | if self.top_ctx[0][cur_idx] { |
| 263 | dc_mode += 1; |
| 264 | } |
| 265 | if left_dc[i >> 1] { |
| 266 | dc_mode += 1; |
| 267 | } |
| 268 | self.top_ctx[0][cur_idx] = mb.coeffs[i][0] != 0; |
| 269 | left_dc[i >> 1] = mb.coeffs[i][0] != 0; |
| 270 | estimate_block(&mb.coeffs[i], dc_mode, &mut self.stats.coeff_models[0], &mut self.stats.vp6models, &self.models.vp6models.zigzag); |
| 271 | } |
| 272 | |
| 273 | let mut dc_mode = 0; |
| 274 | if self.top_ctx[1][mb_x] { |
| 275 | dc_mode += 1; |
| 276 | } |
| 277 | if left_dc[2] { |
| 278 | dc_mode += 1; |
| 279 | } |
| 280 | self.top_ctx[1][mb_x] = mb.coeffs[4][0] != 0; |
| 281 | left_dc[2] = mb.coeffs[4][0] != 0; |
| 282 | estimate_block(&mb.coeffs[4], dc_mode, &mut self.stats.coeff_models[1], &mut self.stats.vp6models, &self.models.vp6models.zigzag); |
| 283 | |
| 284 | let mut dc_mode = 0; |
| 285 | if self.top_ctx[2][mb_x] { |
| 286 | dc_mode += 1; |
| 287 | } |
| 288 | if left_dc[3] { |
| 289 | dc_mode += 1; |
| 290 | } |
| 291 | self.top_ctx[2][mb_x] = mb.coeffs[5][0] != 0; |
| 292 | left_dc[3] = mb.coeffs[5][0] != 0; |
| 293 | estimate_block(&mb.coeffs[5], dc_mode, &mut self.stats.coeff_models[1], &mut self.stats.vp6models, &self.models.vp6models.zigzag); |
| 294 | |
| 295 | mb_idx += 1; |
| 296 | } |
| 297 | } |
| 298 | } |
| 299 | fn prepare_huff_models(&mut self) { |
| 300 | for i in 0..2 { |
| 301 | self.models.vp6huff.dc_token_tree[i].build_codes(&self.models.coeff_models[i].dc_value_probs); |
| 302 | } |
| 303 | for i in 0..2 { |
| 304 | for mode in 0..3 { |
| 305 | for band in 0..6 { |
| 306 | self.models.vp6huff.ac_token_tree[i][mode][band].build_codes(&self.models.coeff_models[i].ac_val_probs[mode][band]); |
| 307 | } |
| 308 | } |
| 309 | } |
| 310 | for i in 0..2 { |
| 311 | self.models.vp6huff.zero_run_tree[i].build_codes_zero_run(&self.models.vp6models.zero_run_probs[i]); |
| 312 | } |
| 313 | } |
| 314 | fn determine_coeff_runs_luma(&self, hstate: &mut HuffState, mb_pos: usize, blk: usize) { |
| 315 | let mb = self.fenc.get_mb(mb_pos); |
| 316 | |
| 317 | if !hstate.dc_zr_coded[0] { |
| 318 | if mb.coeffs[blk].no_dc() { |
| 319 | hstate.dc_zero_run[0] = 0; |
| 320 | let mut blk_no = (blk + 1) & 3; |
| 321 | let mut mb_no = mb_pos + ((blk + 1) >> 2); |
| 322 | let mut cmb = mb; |
| 323 | let mut last_mb_no = mb_pos; |
| 324 | while (hstate.dc_zero_run[0] < MAX_EOB_RUN) && (mb_no < self.mb_w * self.mb_h) { |
| 325 | if mb_no != last_mb_no { |
| 326 | cmb = self.fenc.get_mb(mb_no); |
| 327 | last_mb_no = mb_no; |
| 328 | } |
| 329 | if !cmb.coeffs[blk_no].no_dc() { |
| 330 | break; |
| 331 | } |
| 332 | hstate.dc_zero_run[0] += 1; |
| 333 | blk_no += 1; |
| 334 | if blk_no == 4 { |
| 335 | blk_no = 0; |
| 336 | mb_no += 1; |
| 337 | } |
| 338 | } |
| 339 | } |
| 340 | } |
| 341 | if !hstate.ac_zr_coded[0] { |
| 342 | if mb.coeffs[blk].no_ac() { |
| 343 | hstate.ac_zero_run[0] = 0; |
| 344 | let mut blk_no = (blk + 1) & 3; |
| 345 | let mut mb_no = mb_pos + ((blk + 1) >> 2); |
| 346 | let mut cmb = mb; |
| 347 | let mut last_mb_no = mb_pos; |
| 348 | while (hstate.ac_zero_run[0] < MAX_EOB_RUN) && (mb_no < self.mb_w * self.mb_h) { |
| 349 | if mb_no != last_mb_no { |
| 350 | cmb = self.fenc.get_mb(mb_no); |
| 351 | last_mb_no = mb_no; |
| 352 | } |
| 353 | if !cmb.coeffs[blk_no].no_ac() { |
| 354 | break; |
| 355 | } |
| 356 | hstate.ac_zero_run[0] += 1; |
| 357 | blk_no += 1; |
| 358 | if blk_no == 4 { |
| 359 | blk_no = 0; |
| 360 | mb_no += 1; |
| 361 | } |
| 362 | } |
| 363 | } |
| 364 | } |
| 365 | } |
| 366 | fn determine_coeff_runs_chroma(&self, hstate: &mut HuffState, mb_pos: usize, plane: usize) { |
| 367 | let mb = self.fenc.get_mb(mb_pos); |
| 368 | let blk = plane + 3; |
| 369 | |
| 370 | if !hstate.dc_zr_coded[1] { |
| 371 | if mb.coeffs[blk].no_dc() { |
| 372 | hstate.dc_zero_run[1] = 0; |
| 373 | let mut blk_no = if blk == 4 { 5 } else { 4 }; |
| 374 | let mut mb_no = mb_pos + if blk == 4 { 0 } else { 1 }; |
| 375 | while (hstate.dc_zero_run[1] < MAX_EOB_RUN) && (mb_no < self.mb_w * self.mb_h) { |
| 376 | let mb = self.fenc.get_mb(mb_no); |
| 377 | if !mb.coeffs[blk_no].no_dc() { |
| 378 | break; |
| 379 | } |
| 380 | hstate.dc_zero_run[1] += 1; |
| 381 | blk_no += 1; |
| 382 | if blk_no == 6 { |
| 383 | blk_no = 4; |
| 384 | mb_no += 1; |
| 385 | } |
| 386 | } |
| 387 | } |
| 388 | } |
| 389 | if !hstate.ac_zr_coded[1] { |
| 390 | if mb.coeffs[blk].no_ac() { |
| 391 | hstate.ac_zero_run[1] = 0; |
| 392 | let mut blk_no = if blk == 4 { 5 } else { 4 }; |
| 393 | let mut mb_no = mb_pos + if blk == 4 { 0 } else { 1 }; |
| 394 | while (hstate.ac_zero_run[1] < MAX_EOB_RUN) && (mb_no < self.mb_w * self.mb_h) { |
| 395 | let mb = self.fenc.get_mb(mb_no); |
| 396 | if !mb.coeffs[blk_no].no_ac() { |
| 397 | break; |
| 398 | } |
| 399 | hstate.ac_zero_run[1] += 1; |
| 400 | blk_no += 1; |
| 401 | if blk_no == 6 { |
| 402 | blk_no = 4; |
| 403 | mb_no += 1; |
| 404 | } |
| 405 | } |
| 406 | } |
| 407 | } |
| 408 | } |
| 409 | fn encode_intra(&mut self, bw: &mut ByteWriter, quant: usize) -> EncoderResult<bool> { |
| 410 | self.models.reset(false); |
| 411 | self.models.reset_mbtype_models(); |
| 412 | self.stats.reset(); |
| 413 | |
| 414 | self.pmodels.reset(false); |
| 415 | self.pmodels.reset_mbtype_models(); |
| 416 | |
| 417 | let multistream = self.huffman; |
| 418 | |
| 419 | self.fenc.prepare_intra_blocks(); |
| 420 | self.fenc.apply_dc_prediction(&mut self.dc_pred); |
| 421 | self.estimate_blocks(true); |
| 422 | self.stats.generate(&mut self.models, true); |
| 423 | |
| 424 | // header |
| 425 | bw.write_byte(((quant as u8) << 1) | (multistream as u8))?; |
| 426 | bw.write_byte((self.version << 3) | (self.profile << 1))?; |
| 427 | bw.write_u16be(0)?; // part 2 offset placeholder |
| 428 | |
| 429 | let mut bc = BoolEncoder::new(bw); |
| 430 | |
| 431 | bc.put_bits(self.mb_h as u32, 8)?; |
| 432 | bc.put_bits(self.mb_w as u32, 8)?; |
| 433 | bc.put_bits(self.mb_h as u32, 8)?; // display MB height |
| 434 | bc.put_bits(self.mb_w as u32, 8)?; // display MB width |
| 435 | bc.put_bits(0, 2)?; // scaline mode |
| 436 | // todo other advanced profile bits |
| 437 | bc.put_bits(self.huffman as u32, 1)?; // Huffman mode |
| 438 | |
| 439 | encode_coeff_models(&mut bc, &mut self.models, &self.pmodels, true, false)?; |
| 440 | self.pmodels = self.models.clone(); |
| 441 | |
| 442 | if multistream || (self.profile == VP6_SIMPLE_PROFILE) { |
| 443 | bc.flush()?; |
| 444 | |
| 445 | // patch coefficient offset |
| 446 | let offset = bw.tell(); |
| 447 | if offset >= 65535 { |
| 448 | return Err(EncoderError::Bug); |
| 449 | } |
| 450 | bw.seek(SeekFrom::Start(2))?; |
| 451 | bw.write_u16be(offset as u16)?; |
| 452 | bw.seek(SeekFrom::End(0))?; |
| 453 | |
| 454 | bc = BoolEncoder::new(bw); |
| 455 | } |
| 456 | let writer = if !self.huffman { |
| 457 | VP6Writer::BoolCoder(bc) |
| 458 | } else { |
| 459 | VP6Writer::Huffman(HuffEncoder::new(bw)) |
| 460 | }; |
| 461 | self.encode_coeffs(writer)?; |
| 462 | Ok(true) |
| 463 | } |
| 464 | fn encode_inter(&mut self, bw: &mut ByteWriter, quant: usize) -> EncoderResult<bool> { |
| 465 | self.stats.reset(); |
| 466 | |
| 467 | let multistream = !self.huffman; |
| 468 | let loop_filter = false; |
| 469 | |
| 470 | self.fenc.prepare_intra_blocks(); |
| 471 | self.fenc.prepare_inter_blocks(false); |
| 472 | if !self.last_gold { |
| 473 | self.fenc.prepare_inter_blocks(true); |
| 474 | } |
| 475 | let lambda = if self.force_q.is_some() { 1.0 } else { self.ratectl.lambda }; |
| 476 | self.fenc.select_inter_blocks(self.last_frame.get_vbuf().unwrap(), self.mc_buf.clone(), !self.last_gold, lambda); |
| 477 | // todo implement forced intra |
| 478 | let (_force_intra, golden_frame) = self.fenc.decide_frame_type(); |
| 479 | self.fenc.apply_dc_prediction(&mut self.dc_pred); |
| 480 | self.fenc.predict_mvs(); |
| 481 | self.estimate_blocks(false); |
| 482 | |
| 483 | self.stats.generate(&mut self.models, false); |
| 484 | |
| 485 | // header |
| 486 | bw.write_byte(0x80 | ((quant as u8) << 1) | (multistream as u8))?; |
| 487 | bw.write_u16be(0)?; // part 2 offset placeholder |
| 488 | |
| 489 | let mut bc = BoolEncoder::new(bw); |
| 490 | |
| 491 | bc.put_bits(golden_frame as u32, 1)?; // refresh golden frame |
| 492 | if self.profile == VP6_ADVANCED_PROFILE { |
| 493 | bc.put_bits(loop_filter as u32, 1)?; // use loop filter |
| 494 | if loop_filter { |
| 495 | bc.put_bits(0, 1)?; // loop filter selector |
| 496 | } |
| 497 | if self.version == VERSION_VP62 { |
| 498 | bc.put_bits(0, 1)?; // auto select PM |
| 499 | } |
| 500 | } |
| 501 | // todo other advanced profile bits |
| 502 | bc.put_bits(self.huffman as u32, 1)?; |
| 503 | |
| 504 | encode_mode_prob_models(&mut bc, &mut self.models, &self.pmodels, &self.stats.mbtype_models)?; |
| 505 | encode_mv_models(&mut bc, &self.models.mv_models, &self.pmodels.mv_models)?; |
| 506 | encode_coeff_models(&mut bc, &mut self.models, &self.pmodels, false, false)?; |
| 507 | self.pmodels = self.models.clone(); |
| 508 | |
| 509 | let mut last_mbt = VPMBType::InterNoMV; |
| 510 | for mb_idx in 0..self.mb_w * self.mb_h { |
| 511 | let mb_type = self.fenc.mb_types[mb_idx]; |
| 512 | encode_mb_type(&mut bc, self.fenc.mb_types[mb_idx], last_mbt, ((self.fenc.num_mv[mb_idx] + 1) % 3) as usize, &self.models)?; |
| 513 | last_mbt = mb_type; |
| 514 | match mb_type { |
| 515 | VPMBType::InterMV | VPMBType::GoldenMV => { |
| 516 | encode_mv(&mut bc, self.fenc.coded_mv[mb_idx][3], &self.models)?; |
| 517 | }, |
| 518 | VPMBType::InterFourMV => { |
| 519 | for &sub_type in self.fenc.fmv_sub[mb_idx].iter() { |
| 520 | let id = match sub_type { |
| 521 | VPMBType::InterNoMV => 0, |
| 522 | VPMBType::InterMV => 1, |
| 523 | VPMBType::InterNearest => 2, |
| 524 | VPMBType::InterNear => 3, |
| 525 | _ => unreachable!(), |
| 526 | }; |
| 527 | bc.put_bits(id, 2)?; |
| 528 | } |
| 529 | for (&sub_type, &mv) in self.fenc.fmv_sub[mb_idx].iter().zip(self.fenc.coded_mv[mb_idx].iter()) { |
| 530 | if sub_type == VPMBType::InterMV { |
| 531 | encode_mv(&mut bc, mv, &self.models)?; |
| 532 | } |
| 533 | } |
| 534 | }, |
| 535 | _ => {}, |
| 536 | }; |
| 537 | } |
| 538 | |
| 539 | if multistream || (self.profile == VP6_SIMPLE_PROFILE) { |
| 540 | bc.flush()?; |
| 541 | |
| 542 | // patch coefficient offset |
| 543 | let offset = bw.tell(); |
| 544 | if offset >= 65535 { |
| 545 | return Err(EncoderError::Bug); |
| 546 | } |
| 547 | bw.seek(SeekFrom::Start(1))?; |
| 548 | bw.write_u16be(offset as u16)?; |
| 549 | bw.seek(SeekFrom::End(0))?; |
| 550 | |
| 551 | bc = BoolEncoder::new(bw); |
| 552 | } |
| 553 | let writer = if !self.huffman { |
| 554 | VP6Writer::BoolCoder(bc) |
| 555 | } else { |
| 556 | VP6Writer::Huffman(HuffEncoder::new(bw)) |
| 557 | }; |
| 558 | self.encode_coeffs(writer)?; |
| 559 | Ok(golden_frame) |
| 560 | } |
| 561 | fn encode_coeffs(&mut self, mut writer: VP6Writer) -> EncoderResult<()> { |
| 562 | if self.huffman { |
| 563 | self.prepare_huff_models(); |
| 564 | } |
| 565 | |
| 566 | let mut hstate = HuffState::new(); |
| 567 | for top_ctx in self.top_ctx.iter_mut() { |
| 568 | for el in top_ctx.iter_mut() { |
| 569 | *el = false; |
| 570 | } |
| 571 | } |
| 572 | let mut mb_pos = 0; |
| 573 | for _mb_y in 0..self.mb_h { |
| 574 | let mut left_dc = [false; 4]; |
| 575 | for mb_x in 0..self.mb_w { |
| 576 | let mb = self.fenc.get_mb(mb_pos); |
| 577 | for i in 0..4 { |
| 578 | let cur_idx = mb_x * 2 + (i & 1); |
| 579 | let mut dc_mode = 0; |
| 580 | if self.top_ctx[0][cur_idx] { |
| 581 | dc_mode += 1; |
| 582 | } |
| 583 | if left_dc[i >> 1] { |
| 584 | dc_mode += 1; |
| 585 | } |
| 586 | self.top_ctx[0][cur_idx] = mb.coeffs[i][0] != 0; |
| 587 | left_dc[i >> 1] = mb.coeffs[i][0] != 0; |
| 588 | if self.huffman { |
| 589 | self.determine_coeff_runs_luma(&mut hstate, mb_pos, i); |
| 590 | } |
| 591 | match writer { |
| 592 | VP6Writer::BoolCoder(ref mut bc) => encode_block(bc, &mb.coeffs[i], dc_mode, &self.models.coeff_models[0], &self.models.vp6models)?, |
| 593 | VP6Writer::Huffman(ref mut huff) => encode_block_huff(huff, &self.models.vp6models.zigzag, &mb.coeffs[i], 0, &mut hstate, &self.models.vp6huff)?, |
| 594 | }; |
| 595 | } |
| 596 | |
| 597 | for plane in 1..3 { |
| 598 | let mut dc_mode = 0; |
| 599 | if self.top_ctx[plane][mb_x] { |
| 600 | dc_mode += 1; |
| 601 | } |
| 602 | if left_dc[plane + 1] { |
| 603 | dc_mode += 1; |
| 604 | } |
| 605 | self.top_ctx[plane][mb_x] = mb.coeffs[plane + 3][0] != 0; |
| 606 | left_dc[plane + 1] = mb.coeffs[plane + 3][0] != 0; |
| 607 | if self.huffman { |
| 608 | self.determine_coeff_runs_chroma(&mut hstate, mb_pos, plane); |
| 609 | } |
| 610 | match writer { |
| 611 | VP6Writer::BoolCoder(ref mut bc) => encode_block(bc, &mb.coeffs[plane + 3], dc_mode, &self.models.coeff_models[1], &self.models.vp6models)?, |
| 612 | VP6Writer::Huffman(ref mut huff) => encode_block_huff(huff, &self.models.vp6models.zigzag, &mb.coeffs[plane + 3], 1, &mut hstate, &self.models.vp6huff)?, |
| 613 | }; |
| 614 | } |
| 615 | |
| 616 | mb_pos += 1; |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | match writer { |
| 621 | VP6Writer::BoolCoder(bc) => bc.flush()?, |
| 622 | VP6Writer::Huffman(huff) => huff.flush()?, |
| 623 | }; |
| 624 | |
| 625 | Ok(()) |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | impl NAEncoder for VP6Encoder { |
| 630 | fn negotiate_format(&self, encinfo: &EncodeParameters) -> EncoderResult<EncodeParameters> { |
| 631 | match encinfo.format { |
| 632 | NACodecTypeInfo::None => { |
| 633 | let mut ofmt = EncodeParameters::default(); |
| 634 | ofmt.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, true, YUV420_FORMAT)); |
| 635 | Ok(ofmt) |
| 636 | }, |
| 637 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), |
| 638 | NACodecTypeInfo::Video(vinfo) => { |
| 639 | let outinfo = NAVideoInfo::new((vinfo.width + 3) & !3, (vinfo.height + 3) & !3, true, YUV420_FORMAT); |
| 640 | let mut ofmt = *encinfo; |
| 641 | ofmt.format = NACodecTypeInfo::Video(outinfo); |
| 642 | Ok(ofmt) |
| 643 | } |
| 644 | } |
| 645 | } |
| 646 | fn init(&mut self, stream_id: u32, encinfo: EncodeParameters) -> EncoderResult<NAStreamRef> { |
| 647 | match encinfo.format { |
| 648 | NACodecTypeInfo::None => Err(EncoderError::FormatError), |
| 649 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), |
| 650 | NACodecTypeInfo::Video(vinfo) => { |
| 651 | if vinfo.format != YUV420_FORMAT { |
| 652 | return Err(EncoderError::FormatError); |
| 653 | } |
| 654 | if ((vinfo.width | vinfo.height) & 15) != 0 { |
| 655 | return Err(EncoderError::FormatError); |
| 656 | } |
| 657 | if (vinfo.width | vinfo.height) >= (1 << 12) { |
| 658 | return Err(EncoderError::FormatError); |
| 659 | } |
| 660 | |
| 661 | let out_info = NAVideoInfo::new(vinfo.width, vinfo.height, true, vinfo.format); |
| 662 | let info = NACodecInfo::new("vp6", NACodecTypeInfo::Video(out_info), None); |
| 663 | let mut stream = NAStream::new(StreamType::Video, stream_id, info, encinfo.tb_num, encinfo.tb_den, 0); |
| 664 | stream.set_num(stream_id as usize); |
| 665 | let stream = stream.into_ref(); |
| 666 | |
| 667 | self.last_frame = alloc_video_buffer(out_info, 4)?; |
| 668 | self.gold_frame = alloc_video_buffer(out_info, 4)?; |
| 669 | |
| 670 | self.stream = Some(stream.clone()); |
| 671 | |
| 672 | self.mb_w = (vinfo.width + 15) >> 4; |
| 673 | self.mb_h = (vinfo.height + 15) >> 4; |
| 674 | self.fenc.resize(self.mb_w, self.mb_h); |
| 675 | self.ratectl.init(self.mb_w, self.mb_h, encinfo.bitrate, encinfo.tb_num, encinfo.tb_den); |
| 676 | |
| 677 | self.dc_pred.resize(self.mb_w); |
| 678 | self.top_ctx = [vec![false; self.mb_w * 2], vec![false; self.mb_w], vec![false; self.mb_w], vec![false; self.mb_w * 2]]; |
| 679 | |
| 680 | self.version = VERSION_VP60; |
| 681 | self.profile = VP6_SIMPLE_PROFILE; |
| 682 | |
| 683 | Ok(stream) |
| 684 | }, |
| 685 | } |
| 686 | } |
| 687 | fn encode(&mut self, frm: &NAFrame) -> EncoderResult<()> { |
| 688 | let buf = frm.get_buffer(); |
| 689 | if let Some(ref vbuf) = buf.get_vbuf() { |
| 690 | let mut dbuf = Vec::with_capacity(4); |
| 691 | let mut gw = GrowableMemoryWriter::new_write(&mut dbuf); |
| 692 | let mut bw = ByteWriter::new(&mut gw); |
| 693 | |
| 694 | // todo integrate with rate control |
| 695 | let is_intra = (self.frmcount == 0) || self.decide_encoding(); |
| 696 | let quant = if let Some(q) = self.force_q { |
| 697 | q |
| 698 | } else { |
| 699 | self.ratectl.guess_quant(is_intra, self.huffman) |
| 700 | }; |
| 701 | |
| 702 | self.fenc.read_mbs(vbuf); |
| 703 | self.fenc.set_quant(quant); |
| 704 | self.fenc.me_mode = self.me_mode; |
| 705 | self.fenc.me_range = self.me_range; |
| 706 | let golden_frame = if is_intra { |
| 707 | self.encode_intra(&mut bw, quant)? |
| 708 | } else { |
| 709 | self.fenc.estimate_mvs(self.last_frame.get_vbuf().unwrap(), self.mc_buf.clone(), false); |
| 710 | if !self.last_gold { |
| 711 | self.fenc.estimate_mvs(self.gold_frame.get_vbuf().unwrap(), self.mc_buf.clone(), true); |
| 712 | } |
| 713 | self.encode_inter(&mut bw, quant)? |
| 714 | }; |
| 715 | self.fenc.reconstruct_frame(&mut self.dc_pred, self.last_frame.get_vbuf().unwrap()); |
| 716 | self.last_gold = golden_frame; |
| 717 | if golden_frame { |
| 718 | let mut dfrm = self.gold_frame.get_vbuf().unwrap(); |
| 719 | let src = self.last_frame.get_vbuf().unwrap(); |
| 720 | |
| 721 | let dst = dfrm.get_data_mut().unwrap(); |
| 722 | dst.copy_from_slice(src.get_data()); |
| 723 | } |
| 724 | |
| 725 | if self.force_q.is_none() { |
| 726 | self.ratectl.update(dbuf.len() * 8); |
| 727 | } |
| 728 | |
| 729 | self.pkt = Some(NAPacket::new(self.stream.clone().unwrap(), frm.ts, is_intra, dbuf)); |
| 730 | if self.key_int > 0 { |
| 731 | self.frmcount += 1; |
| 732 | } |
| 733 | if self.frmcount == self.key_int { |
| 734 | self.frmcount = 0; |
| 735 | } |
| 736 | Ok(()) |
| 737 | } else { |
| 738 | Err(EncoderError::InvalidParameters) |
| 739 | } |
| 740 | } |
| 741 | fn get_packet(&mut self) -> EncoderResult<Option<NAPacket>> { |
| 742 | let mut npkt = None; |
| 743 | std::mem::swap(&mut self.pkt, &mut npkt); |
| 744 | Ok(npkt) |
| 745 | } |
| 746 | fn flush(&mut self) -> EncoderResult<()> { |
| 747 | self.frmcount = 0; |
| 748 | Ok(()) |
| 749 | } |
| 750 | } |
| 751 | |
| 752 | const HUFFMAN_OPTION: &str = "huffman"; |
| 753 | const QUANT_OPTION: &str = "quant"; |
| 754 | const MV_SEARCH_OPTION: &str = "mv_mode"; |
| 755 | const MV_RANGE_OPTION: &str = "mv_range"; |
| 756 | |
| 757 | const ENCODER_OPTS: &[NAOptionDefinition] = &[ |
| 758 | NAOptionDefinition { |
| 759 | name: KEYFRAME_OPTION, description: KEYFRAME_OPTION_DESC, |
| 760 | opt_type: NAOptionDefinitionType::Int(Some(0), Some(128)) }, |
| 761 | NAOptionDefinition { |
| 762 | name: HUFFMAN_OPTION, description: "use Huffman encoding", |
| 763 | opt_type: NAOptionDefinitionType::Bool }, |
| 764 | NAOptionDefinition { |
| 765 | name: QUANT_OPTION, description: "force fixed quantiser for encoding", |
| 766 | opt_type: NAOptionDefinitionType::Int(Some(-1), Some(63)) }, |
| 767 | NAOptionDefinition { |
| 768 | name: MV_SEARCH_OPTION, description: "motion search mode", |
| 769 | opt_type: NAOptionDefinitionType::String(Some(&["full", "dia", "hex"])) }, |
| 770 | NAOptionDefinition { |
| 771 | name: MV_RANGE_OPTION, description: "motion search range (in pixels)", |
| 772 | opt_type: NAOptionDefinitionType::Int(Some(0), Some(30)) }, |
| 773 | ]; |
| 774 | |
| 775 | impl NAOptionHandler for VP6Encoder { |
| 776 | fn get_supported_options(&self) -> &[NAOptionDefinition] { ENCODER_OPTS } |
| 777 | fn set_options(&mut self, options: &[NAOption]) { |
| 778 | for option in options.iter() { |
| 779 | for opt_def in ENCODER_OPTS.iter() { |
| 780 | if opt_def.check(option).is_ok() { |
| 781 | match option.name { |
| 782 | KEYFRAME_OPTION => { |
| 783 | if let NAValue::Int(intval) = option.value { |
| 784 | self.key_int = intval as u8; |
| 785 | } |
| 786 | }, |
| 787 | HUFFMAN_OPTION => { |
| 788 | if let NAValue::Bool(bval) = option.value { |
| 789 | self.huffman = bval; |
| 790 | } |
| 791 | }, |
| 792 | QUANT_OPTION => { |
| 793 | if let NAValue::Int(intval) = option.value { |
| 794 | self.force_q = if intval < 0 { None } else { Some(intval as usize) }; |
| 795 | } |
| 796 | }, |
| 797 | MV_SEARCH_OPTION => { |
| 798 | if let NAValue::String(ref string) = option.value { |
| 799 | if let Ok(mv_mode) = string.parse::<MVSearchMode>() { |
| 800 | self.me_mode = mv_mode; |
| 801 | } |
| 802 | } |
| 803 | }, |
| 804 | MV_RANGE_OPTION => { |
| 805 | if let NAValue::Int(intval) = option.value { |
| 806 | self.me_range = intval as i16; |
| 807 | } |
| 808 | }, |
| 809 | _ => {}, |
| 810 | }; |
| 811 | } |
| 812 | } |
| 813 | } |
| 814 | } |
| 815 | fn query_option_value(&self, name: &str) -> Option<NAValue> { |
| 816 | match name { |
| 817 | KEYFRAME_OPTION => Some(NAValue::Int(i64::from(self.key_int))), |
| 818 | HUFFMAN_OPTION => Some(NAValue::Bool(self.huffman)), |
| 819 | QUANT_OPTION => if let Some(q) = self.force_q { |
| 820 | Some(NAValue::Int(q as i64)) |
| 821 | } else { |
| 822 | Some(NAValue::Int(-1)) |
| 823 | }, |
| 824 | MV_SEARCH_OPTION => Some(NAValue::String(self.me_mode.to_string())), |
| 825 | MV_RANGE_OPTION => Some(NAValue::Int(i64::from(self.me_range))), |
| 826 | _ => None, |
| 827 | } |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | pub fn get_encoder() -> Box<dyn NAEncoder + Send> { |
| 832 | Box::new(VP6Encoder::new()) |
| 833 | } |
| 834 | |
| 835 | #[cfg(test)] |
| 836 | mod test { |
| 837 | use nihav_core::codecs::*; |
| 838 | use nihav_core::demuxers::*; |
| 839 | use nihav_core::muxers::*; |
| 840 | use crate::*; |
| 841 | use nihav_commonfmt::*; |
| 842 | use nihav_codec_support::test::enc_video::*; |
| 843 | |
| 844 | fn encode_test(out_name: &'static str, enc_options: &[NAOption], hash: &[u32; 4]) { |
| 845 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 846 | generic_register_all_demuxers(&mut dmx_reg); |
| 847 | let mut dec_reg = RegisteredDecoders::new(); |
| 848 | duck_register_all_decoders(&mut dec_reg); |
| 849 | let mut mux_reg = RegisteredMuxers::new(); |
| 850 | generic_register_all_muxers(&mut mux_reg); |
| 851 | let mut enc_reg = RegisteredEncoders::new(); |
| 852 | duck_register_all_encoders(&mut enc_reg); |
| 853 | |
| 854 | let dec_config = DecoderTestParams { |
| 855 | demuxer: "avi", |
| 856 | in_name: "assets/Duck/ot171_vp40.avi", |
| 857 | stream_type: StreamType::Video, |
| 858 | limit: Some(1), |
| 859 | dmx_reg, dec_reg, |
| 860 | }; |
| 861 | let enc_config = EncoderTestParams { |
| 862 | muxer: "avi", |
| 863 | enc_name: "vp6", |
| 864 | out_name, |
| 865 | mux_reg, enc_reg, |
| 866 | }; |
| 867 | let dst_vinfo = NAVideoInfo { |
| 868 | width: 0, |
| 869 | height: 0, |
| 870 | format: YUV420_FORMAT, |
| 871 | flipped: true, |
| 872 | bits: 12, |
| 873 | }; |
| 874 | let enc_params = EncodeParameters { |
| 875 | format: NACodecTypeInfo::Video(dst_vinfo), |
| 876 | quality: 0, |
| 877 | bitrate: 25000, |
| 878 | tb_num: 0, |
| 879 | tb_den: 0, |
| 880 | flags: 0, |
| 881 | }; |
| 882 | //test_encoding_to_file(&dec_config, &enc_config, enc_params, enc_options); |
| 883 | test_encoding_md5(&dec_config, &enc_config, enc_params, enc_options, |
| 884 | hash); |
| 885 | } |
| 886 | #[test] |
| 887 | fn test_vp6_encoder_bc() { |
| 888 | let enc_options = &[ |
| 889 | NAOption { name: super::QUANT_OPTION, value: NAValue::Int(42) }, |
| 890 | ]; |
| 891 | encode_test("vp6-bool.avi", enc_options, &[0x3649ebc5, 0x4ed1cd7d, 0x1ad40c7b, 0xadd30276]); |
| 892 | } |
| 893 | #[test] |
| 894 | fn test_vp6_encoder_rc() { |
| 895 | let enc_options = &[ |
| 896 | ]; |
| 897 | encode_test("vp6-rc.avi", enc_options, &[0x97f3ea9d, 0x5374d30f, 0xf900a594, 0xbfa34b0f]); |
| 898 | } |
| 899 | #[test] |
| 900 | fn test_vp6_encoder_huff() { |
| 901 | let enc_options = &[ |
| 902 | NAOption { name: super::HUFFMAN_OPTION, value: NAValue::Bool(true) }, |
| 903 | NAOption { name: super::QUANT_OPTION, value: NAValue::Int(42) }, |
| 904 | ]; |
| 905 | encode_test("vp6-huff.avi", enc_options, &[0x4558af0a, 0x4d260b6b, 0x16b7c501, 0x178f42c5]); |
| 906 | } |
| 907 | } |