| 1 | use nihav_core::codecs::*; |
| 2 | use nihav_core::io::byteio::*; |
| 3 | use nihav_codec_support::vq::*; |
| 4 | |
| 5 | #[derive(Default,Clone,Copy,PartialEq,Debug)] |
| 6 | struct YUVCode { |
| 7 | y: [u8; 4], |
| 8 | u: u8, |
| 9 | v: u8, |
| 10 | } |
| 11 | impl VQElement for YUVCode { |
| 12 | fn dist(&self, rval: Self) -> u32 { |
| 13 | let mut ysum = 0; |
| 14 | for (y0, y1) in self.y.iter().zip(rval.y.iter()) { |
| 15 | let yd = i32::from(*y0) - i32::from(*y1); |
| 16 | ysum += yd * yd; |
| 17 | } |
| 18 | let ud = i32::from(self.u) - i32::from(rval.u); |
| 19 | let vd = i32::from(self.v) - i32::from(rval.v); |
| 20 | (ysum + ud * ud + vd * vd) as u32 |
| 21 | } |
| 22 | fn min_cw() -> Self { YUVCode { y: [0; 4], u: 0, v: 0 } } |
| 23 | fn max_cw() -> Self { YUVCode { y: [255; 4], u: 255, v: 255 } } |
| 24 | fn min(&self, rval: Self) -> Self { |
| 25 | let mut ycode = YUVCode::default(); |
| 26 | for i in 0..4 { |
| 27 | ycode.y[i] = self.y[i].min(rval.y[i]); |
| 28 | } |
| 29 | ycode.u = self.u.min(rval.u); |
| 30 | ycode.v = self.v.min(rval.v); |
| 31 | ycode |
| 32 | } |
| 33 | fn max(&self, rval: Self) -> Self { |
| 34 | let mut ycode = YUVCode::default(); |
| 35 | for i in 0..4 { |
| 36 | ycode.y[i] = self.y[i].max(rval.y[i]); |
| 37 | } |
| 38 | ycode.u = self.u.max(rval.u); |
| 39 | ycode.v = self.v.max(rval.v); |
| 40 | ycode |
| 41 | } |
| 42 | fn num_components() -> usize { 6 } |
| 43 | fn sort_by_component(arr: &mut [Self], component: usize) { |
| 44 | let mut counts = [0; 256]; |
| 45 | for entry in arr.iter() { |
| 46 | let idx = match component { |
| 47 | 0 | 1 | 2 | 3 => entry.y[component], |
| 48 | 4 => entry.u, |
| 49 | _ => entry.v, |
| 50 | } as usize; |
| 51 | counts[idx] += 1; |
| 52 | } |
| 53 | let mut offs = [0; 256]; |
| 54 | for i in 0..255 { |
| 55 | offs[i + 1] = offs[i] + counts[i]; |
| 56 | } |
| 57 | let mut dst = vec![YUVCode::default(); arr.len()]; |
| 58 | for entry in arr.iter() { |
| 59 | let idx = match component { |
| 60 | 0 | 1 | 2 | 3 => entry.y[component], |
| 61 | 4 => entry.u, |
| 62 | _ => entry.v, |
| 63 | } as usize; |
| 64 | dst[offs[idx]] = *entry; |
| 65 | offs[idx] += 1; |
| 66 | } |
| 67 | arr.copy_from_slice(dst.as_slice()); |
| 68 | } |
| 69 | fn max_dist_component(min: &Self, max: &Self) -> usize { |
| 70 | let mut comp = 0; |
| 71 | let mut diff = 0; |
| 72 | for i in 0..4 { |
| 73 | let d = u32::from(max.y[i]) - u32::from(min.y[i]); |
| 74 | if d > diff { |
| 75 | diff = d; |
| 76 | comp = i; |
| 77 | } |
| 78 | } |
| 79 | let ud = u32::from(max.u) - u32::from(min.u); |
| 80 | if ud > diff { |
| 81 | diff = ud; |
| 82 | comp = 4; |
| 83 | } |
| 84 | let vd = u32::from(max.v) - u32::from(min.v); |
| 85 | if vd > diff { |
| 86 | comp = 5; |
| 87 | } |
| 88 | comp |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | #[derive(Default)] |
| 93 | struct YUVCodeSum { |
| 94 | ysum: [u64; 4], |
| 95 | usum: u64, |
| 96 | vsum: u64, |
| 97 | count: u64, |
| 98 | } |
| 99 | |
| 100 | impl VQElementSum<YUVCode> for YUVCodeSum { |
| 101 | fn zero() -> Self { Self::default() } |
| 102 | fn add(&mut self, rval: YUVCode, count: u64) { |
| 103 | for i in 0..4 { |
| 104 | self.ysum[i] += u64::from(rval.y[i]) * count; |
| 105 | } |
| 106 | self.usum += u64::from(rval.u) * count; |
| 107 | self.vsum += u64::from(rval.v) * count; |
| 108 | self.count += count; |
| 109 | } |
| 110 | fn get_centroid(&self) -> YUVCode { |
| 111 | if self.count != 0 { |
| 112 | let mut ycode = YUVCode::default(); |
| 113 | for i in 0..4 { |
| 114 | ycode.y[i] = ((self.ysum[i] + self.count / 2) / self.count) as u8; |
| 115 | } |
| 116 | ycode.u = ((self.usum + self.count / 2) / self.count) as u8; |
| 117 | ycode.v = ((self.vsum + self.count / 2) / self.count) as u8; |
| 118 | ycode |
| 119 | } else { |
| 120 | YUVCode::default() |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | struct RNG { |
| 126 | seed: u32, |
| 127 | } |
| 128 | |
| 129 | impl RNG { |
| 130 | fn new() -> Self { Self { seed: 0x12345678 } } |
| 131 | fn next(&mut self) -> u8 { |
| 132 | let mut x = self.seed; |
| 133 | x ^= x.wrapping_shl(13); |
| 134 | x ^= x >> 17; |
| 135 | self.seed = x; |
| 136 | (self.seed >> 24) as u8 |
| 137 | } |
| 138 | fn fill_entry(&mut self, entry: &mut YUVCode) { |
| 139 | for y in entry.y.iter_mut() { |
| 140 | *y = self.next(); |
| 141 | } |
| 142 | entry.u = self.next(); |
| 143 | entry.v = self.next(); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | const GRAY_FORMAT: NAPixelFormaton = NAPixelFormaton { |
| 148 | model: ColorModel::YUV(YUVSubmodel::YUVJ), |
| 149 | components: 1, |
| 150 | comp_info: [Some(NAPixelChromaton{h_ss: 0, v_ss: 0, packed: false, depth: 8, shift: 0, comp_offs: 0, next_elem: 1}), None, None, None, None], |
| 151 | elem_size: 1, |
| 152 | be: true, |
| 153 | alpha: false, |
| 154 | palette: false, |
| 155 | }; |
| 156 | |
| 157 | struct MaskWriter { |
| 158 | masks: Vec<u32>, |
| 159 | mask: u32, |
| 160 | pos: u8, |
| 161 | } |
| 162 | |
| 163 | impl MaskWriter { |
| 164 | fn new() -> Self { |
| 165 | Self { |
| 166 | masks: Vec::new(), |
| 167 | mask: 0, |
| 168 | pos: 0, |
| 169 | } |
| 170 | } |
| 171 | fn reset(&mut self) { |
| 172 | self.masks.clear(); |
| 173 | self.mask = 0; |
| 174 | self.pos = 0; |
| 175 | } |
| 176 | fn put_v1(&mut self) { |
| 177 | self.mask <<= 1; |
| 178 | self.pos += 1; |
| 179 | if self.pos == 32 { |
| 180 | self.flush(); |
| 181 | } |
| 182 | } |
| 183 | fn put_v4(&mut self) { |
| 184 | self.mask <<= 1; |
| 185 | self.mask |= 1; |
| 186 | self.pos += 1; |
| 187 | if self.pos == 32 { |
| 188 | self.flush(); |
| 189 | } |
| 190 | } |
| 191 | fn put_inter(&mut self, skip: bool) { |
| 192 | self.mask <<= 1; |
| 193 | self.mask |= !skip as u32; |
| 194 | self.pos += 1; |
| 195 | if self.pos == 32 { |
| 196 | self.flush(); |
| 197 | } |
| 198 | } |
| 199 | fn flush(&mut self) { |
| 200 | self.masks.push(self.mask); |
| 201 | self.mask = 0; |
| 202 | self.pos = 0; |
| 203 | } |
| 204 | fn end(&mut self) { |
| 205 | if self.pos == 0 { return; } |
| 206 | while self.pos < 32 { |
| 207 | self.mask <<= 1; |
| 208 | self.pos += 1; |
| 209 | } |
| 210 | self.flush(); |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | #[derive(Clone,Copy,PartialEq)] |
| 215 | enum QuantMode { |
| 216 | ELBG, |
| 217 | MedianCut, |
| 218 | } |
| 219 | |
| 220 | impl std::string::ToString for QuantMode { |
| 221 | fn to_string(&self) -> String { |
| 222 | match *self { |
| 223 | QuantMode::ELBG => "elbg".to_string(), |
| 224 | QuantMode::MedianCut => "mediancut".to_string(), |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | struct CinepakEncoder { |
| 230 | stream: Option<NAStreamRef>, |
| 231 | lastfrm: Option<NAVideoBufferRef<u8>>, |
| 232 | pkt: Option<NAPacket>, |
| 233 | frmcount: u8, |
| 234 | key_int: u8, |
| 235 | qmode: QuantMode, |
| 236 | quality: u8, |
| 237 | nstrips: usize, |
| 238 | force_v1: bool, |
| 239 | cur_strip: usize, |
| 240 | v1_entries: Vec<YUVCode>, |
| 241 | v4_entries: Vec<YUVCode>, |
| 242 | v1_cb: Vec<[YUVCode; 256]>, |
| 243 | v4_cb: Vec<[YUVCode; 256]>, |
| 244 | v1_cur_cb: Vec<[YUVCode; 256]>, |
| 245 | v4_cur_cb: Vec<[YUVCode; 256]>, |
| 246 | v1_len: usize, |
| 247 | v4_len: usize, |
| 248 | v1_idx: Vec<u8>, |
| 249 | v4_idx: Vec<u8>, |
| 250 | grayscale: bool, |
| 251 | rng: RNG, |
| 252 | masks: MaskWriter, |
| 253 | skip_dist: Vec<u32>, |
| 254 | } |
| 255 | |
| 256 | fn avg4(a: u8, b: u8, c: u8, d: u8) -> u8 { |
| 257 | ((u16::from(a) + u16::from(b) + u16::from(c) + u16::from(d) + 3) >> 2) as u8 |
| 258 | } |
| 259 | |
| 260 | fn patch_size(bw: &mut ByteWriter, pos: u64) -> EncoderResult<()> { |
| 261 | let size = bw.tell() - pos; |
| 262 | bw.seek(SeekFrom::Current(-((size + 3) as i64)))?; |
| 263 | bw.write_u24be((size + 4) as u32)?; |
| 264 | bw.seek(SeekFrom::End(0))?; |
| 265 | Ok(()) |
| 266 | } |
| 267 | |
| 268 | fn elbg_quant(entries: &[YUVCode], codebook: &mut [YUVCode]) -> usize { |
| 269 | let cb_len = quantise_median_cut::<YUVCode, YUVCodeSum>(entries, codebook); |
| 270 | if cb_len < codebook.len() { |
| 271 | cb_len |
| 272 | } else { |
| 273 | let mut elbg: ELBG<YUVCode, YUVCodeSum> = ELBG::new(codebook); |
| 274 | elbg.quantise(entries, codebook) |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | impl CinepakEncoder { |
| 279 | fn new() -> Self { |
| 280 | Self { |
| 281 | stream: None, |
| 282 | pkt: None, |
| 283 | lastfrm: None, |
| 284 | frmcount: 0, |
| 285 | qmode: QuantMode::MedianCut, |
| 286 | key_int: 25, |
| 287 | quality: 0, |
| 288 | nstrips: 2, |
| 289 | force_v1: false, |
| 290 | cur_strip: 0, |
| 291 | v1_entries: Vec::new(), |
| 292 | v4_entries: Vec::new(), |
| 293 | v1_cb: Vec::with_capacity(2), |
| 294 | v4_cb: Vec::with_capacity(2), |
| 295 | v1_cur_cb: Vec::with_capacity(2), |
| 296 | v4_cur_cb: Vec::with_capacity(2), |
| 297 | v1_len: 0, |
| 298 | v4_len: 0, |
| 299 | grayscale: false, |
| 300 | rng: RNG::new(), |
| 301 | v1_idx: Vec::new(), |
| 302 | v4_idx: Vec::new(), |
| 303 | masks: MaskWriter::new(), |
| 304 | skip_dist: Vec::new(), |
| 305 | } |
| 306 | } |
| 307 | fn read_strip(&mut self, in_frm: &NAVideoBuffer<u8>, start: usize, end: usize) { |
| 308 | let ystride = in_frm.get_stride(0); |
| 309 | let mut yoff = in_frm.get_offset(0) + start * ystride; |
| 310 | let ustride = in_frm.get_stride(1); |
| 311 | let mut uoff = in_frm.get_offset(1) + start / 2 * ustride; |
| 312 | let vstride = in_frm.get_stride(2); |
| 313 | let mut voff = in_frm.get_offset(2) + start / 2 * vstride; |
| 314 | let (width, _) = in_frm.get_dimensions(0); |
| 315 | let data = in_frm.get_data(); |
| 316 | self.v1_entries.clear(); |
| 317 | self.v4_entries.clear(); |
| 318 | for _ in (start..end).step_by(4) { |
| 319 | for x in (0..width).step_by(4) { |
| 320 | let mut yblk = [0; 16]; |
| 321 | let mut ublk = [128; 4]; |
| 322 | let mut vblk = [128; 4]; |
| 323 | for j in 0..4 { |
| 324 | for i in 0..4 { |
| 325 | yblk[i + j * 4] = data[yoff + x + i + j * ystride]; |
| 326 | } |
| 327 | } |
| 328 | if !self.grayscale { |
| 329 | for j in 0..2 { |
| 330 | for i in 0..2 { |
| 331 | ublk[i + j * 2] = data[uoff + x / 2 + i + j * ustride]; |
| 332 | vblk[i + j * 2] = data[voff + x / 2 + i + j * vstride]; |
| 333 | } |
| 334 | } |
| 335 | } |
| 336 | self.v1_entries.push(YUVCode { |
| 337 | y: [avg4(yblk[ 0], yblk[ 1], yblk[ 4], yblk[ 5]), |
| 338 | avg4(yblk[ 2], yblk[ 3], yblk[ 6], yblk[ 7]), |
| 339 | avg4(yblk[ 8], yblk[ 9], yblk[12], yblk[13]), |
| 340 | avg4(yblk[10], yblk[11], yblk[14], yblk[15])], |
| 341 | u: avg4(ublk[0], ublk[1], ublk[2], ublk[3]), |
| 342 | v: avg4(vblk[0], vblk[1], vblk[2], vblk[3]), |
| 343 | }); |
| 344 | for i in 0..4 { |
| 345 | let yidx = (i & 1) * 2 + (i & 2) * 4; |
| 346 | self.v4_entries.push(YUVCode { |
| 347 | y: [ yblk[yidx], yblk[yidx + 1], yblk[yidx + 4], yblk[yidx + 5] ], |
| 348 | u: ublk[i], |
| 349 | v: vblk[i], |
| 350 | }); |
| 351 | } |
| 352 | } |
| 353 | yoff += ystride * 4; |
| 354 | uoff += ustride * 2; |
| 355 | voff += vstride * 2; |
| 356 | } |
| 357 | } |
| 358 | fn find_nearest(codebook: &[YUVCode], code: YUVCode) -> (u8, u32) { |
| 359 | let mut min_dist = std::u32::MAX; |
| 360 | let mut idx = 0; |
| 361 | for (i, cw) in codebook.iter().enumerate() { |
| 362 | let dist = cw.dist(code); |
| 363 | if dist < min_dist { |
| 364 | min_dist = dist; |
| 365 | idx = i; |
| 366 | if dist == 0 { |
| 367 | break; |
| 368 | } |
| 369 | } |
| 370 | } |
| 371 | (idx as u8, min_dist) |
| 372 | } |
| 373 | fn can_update_cb(new_cb: &[YUVCode], old_cb: &[YUVCode], cb_size: usize) -> bool { |
| 374 | let mut skip_count = 0; |
| 375 | for (new, old) in new_cb.iter().zip(old_cb.iter()) { |
| 376 | if new == old { |
| 377 | skip_count += 1; |
| 378 | } |
| 379 | } |
| 380 | let full_size = cb_size * new_cb.len(); |
| 381 | let upd_size = cb_size * (new_cb.len() - skip_count) + (new_cb.len() + 31) / 32 * 4; |
| 382 | upd_size < full_size |
| 383 | } |
| 384 | fn write_cb(bw: &mut ByteWriter, mut id: u8, new_cb: &[YUVCode], old_cb: &[YUVCode], grayscale: bool, update: bool, num_elem: usize) -> EncoderResult<()> { |
| 385 | if grayscale { |
| 386 | id |= 4; |
| 387 | } |
| 388 | if update { |
| 389 | id |= 1; |
| 390 | } |
| 391 | bw.write_byte(id)?; |
| 392 | bw.write_u24be(0)?; |
| 393 | let chunk_pos = bw.tell(); |
| 394 | if !update { |
| 395 | for entry in new_cb.iter().take(num_elem) { |
| 396 | bw.write_buf(&entry.y)?; |
| 397 | if !grayscale { |
| 398 | bw.write_byte(entry.u ^ 0x80)?; |
| 399 | bw.write_byte(entry.v ^ 0x80)?; |
| 400 | } |
| 401 | } |
| 402 | } else { |
| 403 | let mut end = num_elem; |
| 404 | for (i, (ncw, ocw)) in new_cb.iter().zip(old_cb.iter()).enumerate().take(num_elem).rev() { |
| 405 | if ncw == ocw { |
| 406 | end = i; |
| 407 | } else { |
| 408 | break; |
| 409 | } |
| 410 | } |
| 411 | for i in (0..end).step_by(32) { |
| 412 | let mut mask = 0; |
| 413 | for j in 0..32 { |
| 414 | mask <<= 1; |
| 415 | if new_cb[i + j] != old_cb[i + j] { |
| 416 | mask |= 1; |
| 417 | } |
| 418 | } |
| 419 | bw.write_u32be(mask)?; |
| 420 | for j in 0..32 { |
| 421 | if new_cb[i + j] == old_cb[i + j] { continue; } |
| 422 | bw.write_buf(&new_cb[i + j].y)?; |
| 423 | if !grayscale { |
| 424 | bw.write_byte(new_cb[i + j].u ^ 0x80)?; |
| 425 | bw.write_byte(new_cb[i + j].v ^ 0x80)?; |
| 426 | } |
| 427 | } |
| 428 | } |
| 429 | } |
| 430 | patch_size(bw, chunk_pos)?; |
| 431 | Ok(()) |
| 432 | } |
| 433 | fn render_stripe(&mut self, intra: bool, start: usize, end: usize) { |
| 434 | if let Some(ref mut dst_frm) = self.lastfrm { |
| 435 | let ystride = dst_frm.get_stride(0); |
| 436 | let mut yoff = dst_frm.get_offset(0) + start * ystride; |
| 437 | let ustride = dst_frm.get_stride(1); |
| 438 | let mut uoff = dst_frm.get_offset(1) + start / 2 * ustride; |
| 439 | let vstride = dst_frm.get_stride(2); |
| 440 | let mut voff = dst_frm.get_offset(2) + start / 2 * vstride; |
| 441 | let (width, _) = dst_frm.get_dimensions(0); |
| 442 | let data = dst_frm.get_data_mut().unwrap(); |
| 443 | let mut miter = self.masks.masks.iter(); |
| 444 | let mut v1_iter = self.v1_idx.iter(); |
| 445 | let mut v4_iter = self.v4_idx.iter(); |
| 446 | let mut cur_mask = 0; |
| 447 | let mut cur_bit = 0; |
| 448 | for _ in (start..end).step_by(4) { |
| 449 | for x in (0..width).step_by(4) { |
| 450 | if cur_bit == 0 { |
| 451 | if !intra || !self.v1_idx.is_empty() { |
| 452 | cur_mask = *miter.next().unwrap(); |
| 453 | } else { |
| 454 | cur_mask = 0xFFFFFFFF; |
| 455 | } |
| 456 | cur_bit = 1 << 31; |
| 457 | } |
| 458 | if !intra { |
| 459 | if (cur_mask & cur_bit) == 0 { |
| 460 | cur_bit >>= 1; |
| 461 | continue; |
| 462 | } |
| 463 | cur_bit >>= 1; |
| 464 | if cur_bit == 0 { |
| 465 | cur_mask = *miter.next().unwrap(); |
| 466 | cur_bit = 1 << 31; |
| 467 | } |
| 468 | } |
| 469 | if (cur_mask & cur_bit) == 0 { |
| 470 | let idx = *v1_iter.next().unwrap() as usize; |
| 471 | let cb = &self.v1_cur_cb[self.cur_strip][idx]; |
| 472 | |
| 473 | let mut coff = yoff + x; |
| 474 | data[coff] = cb.y[0]; data[coff + 1] = cb.y[0]; |
| 475 | data[coff + 2] = cb.y[1]; data[coff + 3] = cb.y[1]; |
| 476 | coff += ystride; |
| 477 | data[coff] = cb.y[0]; data[coff + 1] = cb.y[0]; |
| 478 | data[coff + 2] = cb.y[1]; data[coff + 3] = cb.y[1]; |
| 479 | coff += ystride; |
| 480 | data[coff] = cb.y[2]; data[coff + 1] = cb.y[2]; |
| 481 | data[coff + 2] = cb.y[3]; data[coff + 3] = cb.y[3]; |
| 482 | coff += ystride; |
| 483 | data[coff] = cb.y[2]; data[coff + 1] = cb.y[2]; |
| 484 | data[coff + 2] = cb.y[3]; data[coff + 3] = cb.y[3]; |
| 485 | |
| 486 | if !self.grayscale { |
| 487 | let mut coff = uoff + x / 2; |
| 488 | data[coff] = cb.u; data[coff + 1] = cb.u; |
| 489 | coff += ustride; |
| 490 | data[coff] = cb.u; data[coff + 1] = cb.u; |
| 491 | |
| 492 | let mut coff = voff + x / 2; |
| 493 | data[coff] = cb.v; data[coff + 1] = cb.v; |
| 494 | coff += vstride; |
| 495 | data[coff] = cb.v; data[coff + 1] = cb.v; |
| 496 | } |
| 497 | } else { |
| 498 | let idx0 = *v4_iter.next().unwrap() as usize; |
| 499 | let cb0 = &self.v4_cur_cb[self.cur_strip][idx0]; |
| 500 | let idx1 = *v4_iter.next().unwrap() as usize; |
| 501 | let cb1 = &self.v4_cur_cb[self.cur_strip][idx1]; |
| 502 | let idx2 = *v4_iter.next().unwrap() as usize; |
| 503 | let cb2 = &self.v4_cur_cb[self.cur_strip][idx2]; |
| 504 | let idx3 = *v4_iter.next().unwrap() as usize; |
| 505 | let cb3 = &self.v4_cur_cb[self.cur_strip][idx3]; |
| 506 | |
| 507 | let mut coff = yoff + x; |
| 508 | data[coff] = cb0.y[0]; data[coff + 1] = cb0.y[1]; |
| 509 | data[coff + 2] = cb1.y[0]; data[coff + 3] = cb1.y[1]; |
| 510 | coff += ystride; |
| 511 | data[coff] = cb0.y[2]; data[coff + 1] = cb0.y[3]; |
| 512 | data[coff + 2] = cb1.y[2]; data[coff + 3] = cb1.y[3]; |
| 513 | coff += ystride; |
| 514 | data[coff] = cb2.y[0]; data[coff + 1] = cb2.y[1]; |
| 515 | data[coff + 2] = cb3.y[0]; data[coff + 3] = cb3.y[1]; |
| 516 | coff += ystride; |
| 517 | data[coff] = cb2.y[2]; data[coff + 1] = cb2.y[3]; |
| 518 | data[coff + 2] = cb3.y[2]; data[coff + 3] = cb3.y[3]; |
| 519 | |
| 520 | if !self.grayscale { |
| 521 | let mut coff = uoff + x / 2; |
| 522 | data[coff] = cb0.u; data[coff + 1] = cb1.u; |
| 523 | coff += ustride; |
| 524 | data[coff] = cb2.u; data[coff + 1] = cb3.u; |
| 525 | |
| 526 | let mut coff = voff + x / 2; |
| 527 | data[coff] = cb0.v; data[coff + 1] = cb1.v; |
| 528 | coff += vstride; |
| 529 | data[coff] = cb2.v; data[coff + 1] = cb3.v; |
| 530 | } |
| 531 | } |
| 532 | cur_bit >>= 1; |
| 533 | } |
| 534 | yoff += ystride * 4; |
| 535 | uoff += ustride * 2; |
| 536 | voff += vstride * 2; |
| 537 | } |
| 538 | } else { |
| 539 | unreachable!(); |
| 540 | } |
| 541 | } |
| 542 | fn calc_skip_dist(&mut self, in_frm: &NAVideoBuffer<u8>, start: usize, end: usize) { |
| 543 | self.skip_dist.clear(); |
| 544 | if let Some(ref ref_frm) = self.lastfrm { |
| 545 | let rystride = ref_frm.get_stride(0); |
| 546 | let mut ryoff = ref_frm.get_offset(0) + start * rystride; |
| 547 | let rustride = ref_frm.get_stride(1); |
| 548 | let mut ruoff = ref_frm.get_offset(1) + start / 2 * rustride; |
| 549 | let rvstride = ref_frm.get_stride(2); |
| 550 | let mut rvoff = ref_frm.get_offset(2) + start / 2 * rvstride; |
| 551 | let (width, _) = ref_frm.get_dimensions(0); |
| 552 | let rdata = ref_frm.get_data(); |
| 553 | |
| 554 | let iystride = in_frm.get_stride(0); |
| 555 | let mut iyoff = in_frm.get_offset(0) + start * iystride; |
| 556 | let iustride = in_frm.get_stride(1); |
| 557 | let mut iuoff = in_frm.get_offset(1) + start / 2 * iustride; |
| 558 | let ivstride = in_frm.get_stride(2); |
| 559 | let mut ivoff = in_frm.get_offset(2) + start / 2 * ivstride; |
| 560 | let idata = in_frm.get_data(); |
| 561 | |
| 562 | for _ in (start..end).step_by(4) { |
| 563 | for x in (0..width).step_by(4) { |
| 564 | let mut dist = 0; |
| 565 | let mut roff = ryoff + x; |
| 566 | let mut ioff = iyoff + x; |
| 567 | for _ in 0..4 { |
| 568 | for i in 0..4 { |
| 569 | let d = i32::from(rdata[roff + i]) - i32::from(idata[ioff + i]); |
| 570 | dist += d * d; |
| 571 | } |
| 572 | roff += rystride; |
| 573 | ioff += iystride; |
| 574 | } |
| 575 | if !self.grayscale { |
| 576 | let mut roff = ruoff + x / 2; |
| 577 | let mut ioff = iuoff + x / 2; |
| 578 | let ud = i32::from(rdata[roff]) - i32::from(idata[ioff]); |
| 579 | dist += ud * ud; |
| 580 | let ud = i32::from(rdata[roff + 1]) - i32::from(idata[ioff + 1]); |
| 581 | dist += ud * ud; |
| 582 | roff += rustride; ioff += iustride; |
| 583 | let ud = i32::from(rdata[roff]) - i32::from(idata[ioff]); |
| 584 | dist += ud * ud; |
| 585 | let ud = i32::from(rdata[roff + 1]) - i32::from(idata[ioff + 1]); |
| 586 | dist += ud * ud; |
| 587 | |
| 588 | let mut roff = rvoff + x / 2; |
| 589 | let mut ioff = ivoff + x / 2; |
| 590 | let vd = i32::from(rdata[roff]) - i32::from(idata[ioff]); |
| 591 | dist += vd * vd; |
| 592 | let vd = i32::from(rdata[roff + 1]) - i32::from(idata[ioff + 1]); |
| 593 | dist += vd * vd; |
| 594 | roff += rvstride; ioff += ivstride; |
| 595 | let vd = i32::from(rdata[roff]) - i32::from(idata[ioff]); |
| 596 | dist += vd * vd; |
| 597 | let vd = i32::from(rdata[roff + 1]) - i32::from(idata[ioff + 1]); |
| 598 | dist += vd * vd; |
| 599 | } |
| 600 | self.skip_dist.push(dist as u32); |
| 601 | } |
| 602 | |
| 603 | iyoff += iystride * 4; |
| 604 | iuoff += iustride * 2; |
| 605 | ivoff += ivstride * 2; |
| 606 | ryoff += rystride * 4; |
| 607 | ruoff += rustride * 2; |
| 608 | rvoff += rvstride * 2; |
| 609 | } |
| 610 | } else { |
| 611 | unreachable!(); |
| 612 | } |
| 613 | } |
| 614 | fn quant_vectors(&mut self) { |
| 615 | match self.qmode { |
| 616 | QuantMode::ELBG => { |
| 617 | self.v1_len = elbg_quant(&self.v1_entries, &mut self.v1_cur_cb[self.cur_strip]); |
| 618 | self.v4_len = if !self.force_v1 { |
| 619 | elbg_quant(&self.v4_entries, &mut self.v4_cur_cb[self.cur_strip]) |
| 620 | } else { |
| 621 | 0 |
| 622 | }; |
| 623 | }, |
| 624 | QuantMode::MedianCut => { |
| 625 | self.v1_len = quantise_median_cut::<YUVCode, YUVCodeSum>(&self.v1_entries, &mut self.v1_cur_cb[self.cur_strip]); |
| 626 | if !self.force_v1 { |
| 627 | self.v4_len = quantise_median_cut::<YUVCode, YUVCodeSum>(&self.v4_entries, &mut self.v4_cur_cb[self.cur_strip]); |
| 628 | } else { |
| 629 | self.v4_len = 0; |
| 630 | } |
| 631 | }, |
| 632 | }; |
| 633 | |
| 634 | for e in self.v1_cur_cb[self.cur_strip].iter_mut().skip(self.v1_len) { *e = YUVCode::default(); } |
| 635 | for e in self.v4_cur_cb[self.cur_strip].iter_mut().skip(self.v4_len) { *e = YUVCode::default(); } |
| 636 | } |
| 637 | fn encode_intra(&mut self, bw: &mut ByteWriter, in_frm: &NAVideoBuffer<u8>) -> EncoderResult<bool> { |
| 638 | let (width, height) = in_frm.get_dimensions(0); |
| 639 | let mut strip_h = (height / self.nstrips + 3) & !3; |
| 640 | if strip_h == 0 { |
| 641 | self.nstrips = 1; |
| 642 | strip_h = height; |
| 643 | } |
| 644 | let mut start_line = 0; |
| 645 | let mut end_line = strip_h; |
| 646 | |
| 647 | bw.write_byte(0)?; // intra flag |
| 648 | bw.write_u24be(0)?; // frame size |
| 649 | let frame_data_pos = bw.tell(); |
| 650 | bw.write_u16be(width as u16)?; |
| 651 | bw.write_u16be(height as u16)?; |
| 652 | bw.write_u16be(self.nstrips as u16)?; |
| 653 | |
| 654 | self.cur_strip = 0; |
| 655 | for entry in self.v1_cb[self.cur_strip].iter_mut() { |
| 656 | self.rng.fill_entry(entry); |
| 657 | } |
| 658 | for entry in self.v4_cb[self.cur_strip].iter_mut() { |
| 659 | self.rng.fill_entry(entry); |
| 660 | } |
| 661 | while start_line < height { |
| 662 | self.read_strip(in_frm, start_line, end_line); |
| 663 | |
| 664 | if self.cur_strip > 0 { |
| 665 | self.v1_cb[self.cur_strip] = self.v1_cb[self.cur_strip - 1]; |
| 666 | self.v4_cb[self.cur_strip] = self.v4_cb[self.cur_strip - 1]; |
| 667 | } |
| 668 | self.quant_vectors(); |
| 669 | if self.grayscale { |
| 670 | for cw in self.v1_cur_cb[self.cur_strip].iter_mut() { |
| 671 | cw.u = 128; |
| 672 | cw.v = 128; |
| 673 | } |
| 674 | for cw in self.v4_cur_cb[self.cur_strip].iter_mut() { |
| 675 | cw.u = 128; |
| 676 | cw.v = 128; |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | self.v1_idx.clear(); |
| 681 | self.v4_idx.clear(); |
| 682 | self.masks.reset(); |
| 683 | |
| 684 | for (v1_entry, v4_entries) in self.v1_entries.iter().zip(self.v4_entries.chunks(4)) { |
| 685 | let (v1_idx, v1_dist) = Self::find_nearest(&self.v1_cur_cb[self.cur_strip][..self.v1_len], *v1_entry); |
| 686 | if v1_dist == 0 || self.force_v1 { |
| 687 | self.masks.put_v1(); |
| 688 | self.v1_idx.push(v1_idx); |
| 689 | continue; |
| 690 | } |
| 691 | let (v40_idx, v40_dist) = Self::find_nearest(&self.v4_cur_cb[self.cur_strip][..self.v4_len], v4_entries[0]); |
| 692 | let (v41_idx, v41_dist) = Self::find_nearest(&self.v4_cur_cb[self.cur_strip][..self.v4_len], v4_entries[1]); |
| 693 | let (v42_idx, v42_dist) = Self::find_nearest(&self.v4_cur_cb[self.cur_strip][..self.v4_len], v4_entries[2]); |
| 694 | let (v43_idx, v43_dist) = Self::find_nearest(&self.v4_cur_cb[self.cur_strip][..self.v4_len], v4_entries[3]); |
| 695 | if v40_dist + v41_dist + v42_dist + v43_dist > v1_dist { |
| 696 | self.masks.put_v4(); |
| 697 | self.v4_idx.push(v40_idx); |
| 698 | self.v4_idx.push(v41_idx); |
| 699 | self.v4_idx.push(v42_idx); |
| 700 | self.v4_idx.push(v43_idx); |
| 701 | } else { |
| 702 | self.masks.put_v1(); |
| 703 | self.v1_idx.push(v1_idx); |
| 704 | } |
| 705 | } |
| 706 | self.masks.end(); |
| 707 | |
| 708 | let mut is_intra_strip = start_line == 0; |
| 709 | let (upd_v1, upd_v4) = if !is_intra_strip { |
| 710 | let cb_size = if self.grayscale { 4 } else { 6 }; |
| 711 | (Self::can_update_cb(&self.v1_cur_cb[self.cur_strip][..self.v1_len], &self.v1_cb[self.cur_strip][..self.v1_len], cb_size), |
| 712 | Self::can_update_cb(&self.v4_cur_cb[self.cur_strip][..self.v4_len], &self.v4_cb[self.cur_strip][..self.v4_len], cb_size)) |
| 713 | } else { |
| 714 | (false, false) |
| 715 | }; |
| 716 | if !is_intra_strip && !upd_v1 && !upd_v4 { |
| 717 | is_intra_strip = true; |
| 718 | } |
| 719 | bw.write_byte(if is_intra_strip { 0x10 } else { 0x11 })?; |
| 720 | bw.write_u24be(0)?; // strip size |
| 721 | let strip_data_pos = bw.tell(); |
| 722 | bw.write_u16be(0)?; // yoff |
| 723 | bw.write_u16be(0)?; // xoff |
| 724 | bw.write_u16be((end_line - start_line) as u16)?; |
| 725 | bw.write_u16be(width as u16)?; |
| 726 | |
| 727 | Self::write_cb(bw, 0x20, &self.v4_cur_cb[self.cur_strip], &self.v4_cb[self.cur_strip], self.grayscale, upd_v4, self.v4_len)?; |
| 728 | Self::write_cb(bw, 0x22, &self.v1_cur_cb[self.cur_strip], &self.v1_cb[self.cur_strip], self.grayscale, upd_v1, self.v1_len)?; |
| 729 | |
| 730 | self.render_stripe(true, start_line, end_line); |
| 731 | |
| 732 | if self.v4_idx.is_empty() { |
| 733 | bw.write_byte(0x32)?; |
| 734 | bw.write_u24be((self.v1_idx.len() + 4) as u32)?; |
| 735 | bw.write_buf(self.v1_idx.as_slice())?; |
| 736 | } else { |
| 737 | bw.write_byte(0x30)?; |
| 738 | bw.write_u24be(0)?; |
| 739 | let chunk_pos = bw.tell(); |
| 740 | let mut v1_pos = 0; |
| 741 | let mut v4_pos = 0; |
| 742 | for _ in 0..32 { |
| 743 | self.v1_idx.push(0); |
| 744 | self.v4_idx.push(0); |
| 745 | self.v4_idx.push(0); |
| 746 | self.v4_idx.push(0); |
| 747 | self.v4_idx.push(0); |
| 748 | } |
| 749 | for mask in self.masks.masks.iter() { |
| 750 | bw.write_u32be(*mask)?; |
| 751 | for j in (0..32).rev() { |
| 752 | if (mask & (1 << j)) == 0 { |
| 753 | bw.write_byte(self.v1_idx[v1_pos])?; |
| 754 | v1_pos += 1; |
| 755 | } else { |
| 756 | bw.write_byte(self.v4_idx[v4_pos])?; |
| 757 | bw.write_byte(self.v4_idx[v4_pos + 1])?; |
| 758 | bw.write_byte(self.v4_idx[v4_pos + 2])?; |
| 759 | bw.write_byte(self.v4_idx[v4_pos + 3])?; |
| 760 | v4_pos += 4; |
| 761 | } |
| 762 | } |
| 763 | } |
| 764 | patch_size(bw, chunk_pos)?; |
| 765 | } |
| 766 | |
| 767 | patch_size(bw, strip_data_pos)?; |
| 768 | |
| 769 | self.v1_cb[self.cur_strip].copy_from_slice(&self.v1_cur_cb[self.cur_strip]); |
| 770 | self.v4_cb[self.cur_strip].copy_from_slice(&self.v4_cur_cb[self.cur_strip]); |
| 771 | start_line = end_line; |
| 772 | end_line = (end_line + strip_h).min(height); |
| 773 | |
| 774 | self.cur_strip += 1; |
| 775 | } |
| 776 | patch_size(bw, frame_data_pos)?; |
| 777 | Ok(true) |
| 778 | } |
| 779 | fn encode_inter(&mut self, bw: &mut ByteWriter, in_frm: &NAVideoBuffer<u8>) -> EncoderResult<bool> { |
| 780 | let (width, height) = in_frm.get_dimensions(0); |
| 781 | let mut strip_h = (height / self.nstrips + 3) & !3; |
| 782 | if strip_h == 0 { |
| 783 | self.nstrips = 1; |
| 784 | strip_h = height; |
| 785 | } |
| 786 | let mut start_line = 0; |
| 787 | let mut end_line = strip_h; |
| 788 | |
| 789 | bw.write_byte(1)?; // intra flag |
| 790 | bw.write_u24be(0)?; // frame size |
| 791 | let frame_data_pos = bw.tell(); |
| 792 | bw.write_u16be(width as u16)?; |
| 793 | bw.write_u16be(height as u16)?; |
| 794 | bw.write_u16be(self.nstrips as u16)?; |
| 795 | |
| 796 | self.cur_strip = 0; |
| 797 | while start_line < height { |
| 798 | self.read_strip(in_frm, start_line, end_line); |
| 799 | self.calc_skip_dist(in_frm, start_line, end_line); |
| 800 | |
| 801 | self.quant_vectors(); |
| 802 | if self.grayscale { |
| 803 | for cw in self.v1_cur_cb[self.cur_strip].iter_mut() { |
| 804 | cw.u = 128; |
| 805 | cw.v = 128; |
| 806 | } |
| 807 | for cw in self.v4_cur_cb[self.cur_strip].iter_mut() { |
| 808 | cw.u = 128; |
| 809 | cw.v = 128; |
| 810 | } |
| 811 | } |
| 812 | |
| 813 | self.v1_idx.clear(); |
| 814 | self.v4_idx.clear(); |
| 815 | self.masks.reset(); |
| 816 | |
| 817 | let mut skip_iter = self.skip_dist.iter(); |
| 818 | for (v1_entry, v4_entries) in self.v1_entries.iter().zip(self.v4_entries.chunks(4)) { |
| 819 | let skip_dist = *skip_iter.next().unwrap(); |
| 820 | if skip_dist == 0 { |
| 821 | self.masks.put_inter(true); |
| 822 | continue; |
| 823 | } |
| 824 | let (v1_idx, v1_dist) = Self::find_nearest(&self.v1_cur_cb[self.cur_strip][..self.v1_len], *v1_entry); |
| 825 | if skip_dist < v1_dist { |
| 826 | self.masks.put_inter(true); |
| 827 | continue; |
| 828 | } else { |
| 829 | self.masks.put_inter(false); |
| 830 | } |
| 831 | if v1_dist == 0 || self.force_v1 { |
| 832 | self.masks.put_v1(); |
| 833 | self.v1_idx.push(v1_idx); |
| 834 | continue; |
| 835 | } |
| 836 | let (v40_idx, v40_dist) = Self::find_nearest(&self.v4_cur_cb[self.cur_strip][..self.v4_len], v4_entries[0]); |
| 837 | let (v41_idx, v41_dist) = Self::find_nearest(&self.v4_cur_cb[self.cur_strip][..self.v4_len], v4_entries[1]); |
| 838 | let (v42_idx, v42_dist) = Self::find_nearest(&self.v4_cur_cb[self.cur_strip][..self.v4_len], v4_entries[2]); |
| 839 | let (v43_idx, v43_dist) = Self::find_nearest(&self.v4_cur_cb[self.cur_strip][..self.v4_len], v4_entries[3]); |
| 840 | if v40_dist + v41_dist + v42_dist + v43_dist > v1_dist { |
| 841 | self.masks.put_v4(); |
| 842 | self.v4_idx.push(v40_idx); |
| 843 | self.v4_idx.push(v41_idx); |
| 844 | self.v4_idx.push(v42_idx); |
| 845 | self.v4_idx.push(v43_idx); |
| 846 | } else { |
| 847 | self.masks.put_v1(); |
| 848 | self.v1_idx.push(v1_idx); |
| 849 | } |
| 850 | } |
| 851 | self.masks.end(); |
| 852 | |
| 853 | let (upd_v1, upd_v4) = { |
| 854 | let cb_size = if self.grayscale { 4 } else { 6 }; |
| 855 | (Self::can_update_cb(&self.v1_cur_cb[self.cur_strip][..self.v1_len], &self.v1_cb[self.cur_strip][..self.v1_len], cb_size), |
| 856 | Self::can_update_cb(&self.v4_cur_cb[self.cur_strip][..self.v4_len], &self.v4_cb[self.cur_strip][..self.v4_len], cb_size)) |
| 857 | }; |
| 858 | bw.write_byte(0x11)?; |
| 859 | bw.write_u24be(0)?; // strip size |
| 860 | let strip_data_pos = bw.tell(); |
| 861 | bw.write_u16be(0)?; // yoff |
| 862 | bw.write_u16be(0)?; // xoff |
| 863 | bw.write_u16be((end_line - start_line) as u16)?; |
| 864 | bw.write_u16be(width as u16)?; |
| 865 | |
| 866 | Self::write_cb(bw, 0x20, &self.v4_cur_cb[self.cur_strip], &self.v4_cb[self.cur_strip], self.grayscale, upd_v4, self.v4_len)?; |
| 867 | Self::write_cb(bw, 0x22, &self.v1_cur_cb[self.cur_strip], &self.v1_cb[self.cur_strip], self.grayscale, upd_v1, self.v1_len)?; |
| 868 | |
| 869 | self.render_stripe(false, start_line, end_line); |
| 870 | |
| 871 | bw.write_byte(0x31)?; |
| 872 | bw.write_u24be(0)?; |
| 873 | let chunk_pos = bw.tell(); |
| 874 | let mut v1_pos = 0; |
| 875 | let mut v4_pos = 0; |
| 876 | for _ in 0..32 { |
| 877 | self.v1_idx.push(0); |
| 878 | self.v4_idx.push(0); |
| 879 | self.v4_idx.push(0); |
| 880 | self.v4_idx.push(0); |
| 881 | self.v4_idx.push(0); |
| 882 | } |
| 883 | let mut skip = true; |
| 884 | for mask in self.masks.masks.iter() { |
| 885 | bw.write_u32be(*mask)?; |
| 886 | if *mask == 0 && skip { continue; } |
| 887 | let mut bit = 1 << 31; |
| 888 | while bit > 0 { |
| 889 | if skip { |
| 890 | skip = (mask & bit) == 0; |
| 891 | bit >>= 1; |
| 892 | } else { |
| 893 | if (mask & bit) == 0 { |
| 894 | bw.write_byte(self.v1_idx[v1_pos])?; |
| 895 | v1_pos += 1; |
| 896 | } else { |
| 897 | bw.write_byte(self.v4_idx[v4_pos])?; |
| 898 | bw.write_byte(self.v4_idx[v4_pos + 1])?; |
| 899 | bw.write_byte(self.v4_idx[v4_pos + 2])?; |
| 900 | bw.write_byte(self.v4_idx[v4_pos + 3])?; |
| 901 | v4_pos += 4; |
| 902 | } |
| 903 | bit >>= 1; |
| 904 | skip = true; |
| 905 | } |
| 906 | } |
| 907 | } |
| 908 | patch_size(bw, chunk_pos)?; |
| 909 | |
| 910 | patch_size(bw, strip_data_pos)?; |
| 911 | |
| 912 | self.v1_cb[self.cur_strip].copy_from_slice(&self.v1_cur_cb[self.cur_strip]); |
| 913 | self.v4_cb[self.cur_strip].copy_from_slice(&self.v4_cur_cb[self.cur_strip]); |
| 914 | start_line = end_line; |
| 915 | end_line = (end_line + strip_h).min(height); |
| 916 | |
| 917 | self.cur_strip += 1; |
| 918 | } |
| 919 | patch_size(bw, frame_data_pos)?; |
| 920 | Ok(true) |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | impl NAEncoder for CinepakEncoder { |
| 925 | fn negotiate_format(&self, encinfo: &EncodeParameters) -> EncoderResult<EncodeParameters> { |
| 926 | match encinfo.format { |
| 927 | NACodecTypeInfo::None => { |
| 928 | Ok(EncodeParameters { |
| 929 | format: NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, true, YUV420_FORMAT)), |
| 930 | ..Default::default() |
| 931 | }) |
| 932 | }, |
| 933 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), |
| 934 | NACodecTypeInfo::Video(vinfo) => { |
| 935 | let pix_fmt = if vinfo.format == GRAY_FORMAT { GRAY_FORMAT } else { YUV420_FORMAT }; |
| 936 | let outinfo = NAVideoInfo::new((vinfo.width + 3) & !3, (vinfo.height + 3) & !3, false, pix_fmt); |
| 937 | let mut ofmt = *encinfo; |
| 938 | ofmt.format = NACodecTypeInfo::Video(outinfo); |
| 939 | Ok(ofmt) |
| 940 | } |
| 941 | } |
| 942 | } |
| 943 | fn get_capabilities(&self) -> u64 { 0 } |
| 944 | fn init(&mut self, stream_id: u32, encinfo: EncodeParameters) -> EncoderResult<NAStreamRef> { |
| 945 | match encinfo.format { |
| 946 | NACodecTypeInfo::None => Err(EncoderError::FormatError), |
| 947 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), |
| 948 | NACodecTypeInfo::Video(vinfo) => { |
| 949 | if vinfo.format != YUV420_FORMAT && vinfo.format != GRAY_FORMAT { |
| 950 | return Err(EncoderError::FormatError); |
| 951 | } |
| 952 | if ((vinfo.width | vinfo.height) & 3) != 0 { |
| 953 | return Err(EncoderError::FormatError); |
| 954 | } |
| 955 | if (vinfo.width | vinfo.height) >= (1 << 16) { |
| 956 | return Err(EncoderError::FormatError); |
| 957 | } |
| 958 | |
| 959 | let out_info = NAVideoInfo::new(vinfo.width, vinfo.height, false, vinfo.format); |
| 960 | let info = NACodecInfo::new("cinepak", NACodecTypeInfo::Video(out_info), None); |
| 961 | let mut stream = NAStream::new(StreamType::Video, stream_id, info, encinfo.tb_num, encinfo.tb_den, 0); |
| 962 | stream.set_num(stream_id as usize); |
| 963 | let stream = stream.into_ref(); |
| 964 | |
| 965 | self.stream = Some(stream.clone()); |
| 966 | self.quality = encinfo.quality; |
| 967 | self.grayscale = vinfo.format != YUV420_FORMAT; |
| 968 | let num_blocks = vinfo.width / 2 * vinfo.height / 2; |
| 969 | self.v1_entries = Vec::with_capacity(num_blocks); |
| 970 | self.v4_entries = Vec::with_capacity(num_blocks * 4); |
| 971 | self.v1_idx = Vec::with_capacity(num_blocks); |
| 972 | self.v4_idx = Vec::with_capacity(num_blocks * 4); |
| 973 | self.skip_dist = Vec::with_capacity(vinfo.width / 4 * vinfo.height / 4); |
| 974 | |
| 975 | let buf = alloc_video_buffer(out_info, 2)?; |
| 976 | self.lastfrm = Some(buf.get_vbuf().unwrap()); |
| 977 | |
| 978 | Ok(stream) |
| 979 | }, |
| 980 | } |
| 981 | } |
| 982 | fn encode(&mut self, frm: &NAFrame) -> EncoderResult<()> { |
| 983 | let buf = frm.get_buffer(); |
| 984 | if let Some(ref vbuf) = buf.get_vbuf() { |
| 985 | if self.nstrips == 0 { |
| 986 | let (w, h) = vbuf.get_dimensions(0); |
| 987 | self.nstrips = ((((w * h) >> 4) + 1200) / 2400).max(1).min(3); |
| 988 | let strip_h = ((h + self.nstrips - 1) / self.nstrips + 3) & !3; |
| 989 | self.nstrips = (h + strip_h - 1) / strip_h; |
| 990 | } |
| 991 | let cur_strips = self.v1_cb.len(); |
| 992 | if cur_strips != self.nstrips { |
| 993 | self.frmcount = 0; |
| 994 | } |
| 995 | if cur_strips < self.nstrips { |
| 996 | for _ in cur_strips..self.nstrips { |
| 997 | self.v1_cb.push([YUVCode::default(); 256]); |
| 998 | self.v4_cb.push([YUVCode::default(); 256]); |
| 999 | self.v1_cur_cb.push([YUVCode::default(); 256]); |
| 1000 | self.v4_cur_cb.push([YUVCode::default(); 256]); |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | let mut dbuf = Vec::with_capacity(4); |
| 1005 | let mut gw = GrowableMemoryWriter::new_write(&mut dbuf); |
| 1006 | let mut bw = ByteWriter::new(&mut gw); |
| 1007 | let is_intra = if self.frmcount == 0 { |
| 1008 | self.encode_intra(&mut bw, vbuf)? |
| 1009 | } else { |
| 1010 | self.encode_inter(&mut bw, vbuf)? |
| 1011 | }; |
| 1012 | self.pkt = Some(NAPacket::new(self.stream.clone().unwrap(), frm.ts, is_intra, dbuf)); |
| 1013 | self.frmcount += 1; |
| 1014 | if self.frmcount == self.key_int { |
| 1015 | self.frmcount = 0; |
| 1016 | } |
| 1017 | Ok(()) |
| 1018 | } else { |
| 1019 | Err(EncoderError::InvalidParameters) |
| 1020 | } |
| 1021 | } |
| 1022 | fn get_packet(&mut self) -> EncoderResult<Option<NAPacket>> { |
| 1023 | let mut npkt = None; |
| 1024 | std::mem::swap(&mut self.pkt, &mut npkt); |
| 1025 | Ok(npkt) |
| 1026 | } |
| 1027 | fn flush(&mut self) -> EncoderResult<()> { |
| 1028 | self.frmcount = 0; |
| 1029 | Ok(()) |
| 1030 | } |
| 1031 | } |
| 1032 | |
| 1033 | const ENCODER_OPTS: &[NAOptionDefinition] = &[ |
| 1034 | NAOptionDefinition { |
| 1035 | name: KEYFRAME_OPTION, description: KEYFRAME_OPTION_DESC, |
| 1036 | opt_type: NAOptionDefinitionType::Int(Some(0), Some(128)) }, |
| 1037 | NAOptionDefinition { |
| 1038 | name: "nstrips", description: "Number of strips per frame (0 - automatic)", |
| 1039 | opt_type: NAOptionDefinitionType::Int(Some(0), Some(16)) }, |
| 1040 | NAOptionDefinition { |
| 1041 | name: "quant_mode", description: "Quantisation mode", |
| 1042 | opt_type: NAOptionDefinitionType::String(Some(&["elbg", "mediancut"])) }, |
| 1043 | NAOptionDefinition { |
| 1044 | name: "force_v1", description: "Force coarse (V1-only) mode", |
| 1045 | opt_type: NAOptionDefinitionType::Bool }, |
| 1046 | ]; |
| 1047 | |
| 1048 | impl NAOptionHandler for CinepakEncoder { |
| 1049 | fn get_supported_options(&self) -> &[NAOptionDefinition] { ENCODER_OPTS } |
| 1050 | fn set_options(&mut self, options: &[NAOption]) { |
| 1051 | for option in options.iter() { |
| 1052 | for opt_def in ENCODER_OPTS.iter() { |
| 1053 | if opt_def.check(option).is_ok() { |
| 1054 | match option.name { |
| 1055 | KEYFRAME_OPTION => { |
| 1056 | if let NAValue::Int(intval) = option.value { |
| 1057 | self.key_int = intval as u8; |
| 1058 | } |
| 1059 | }, |
| 1060 | "nstrips" => { |
| 1061 | if let NAValue::Int(intval) = option.value { |
| 1062 | self.nstrips = intval as usize; |
| 1063 | } |
| 1064 | }, |
| 1065 | "quant_mode" => { |
| 1066 | if let NAValue::String(ref strval) = option.value { |
| 1067 | match strval.as_str() { |
| 1068 | "elbg" => self.qmode = QuantMode::ELBG, |
| 1069 | "mediancut" => self.qmode = QuantMode::MedianCut, |
| 1070 | _ => {}, |
| 1071 | }; |
| 1072 | } |
| 1073 | }, |
| 1074 | "force_v1" => { |
| 1075 | if let NAValue::Bool(val) = option.value { |
| 1076 | self.force_v1 = val; |
| 1077 | } |
| 1078 | }, |
| 1079 | _ => {}, |
| 1080 | }; |
| 1081 | } |
| 1082 | } |
| 1083 | } |
| 1084 | } |
| 1085 | fn query_option_value(&self, name: &str) -> Option<NAValue> { |
| 1086 | match name { |
| 1087 | KEYFRAME_OPTION => Some(NAValue::Int(i64::from(self.key_int))), |
| 1088 | "nstrips" => Some(NAValue::Int(self.nstrips as i64)), |
| 1089 | "quant_mode" => Some(NAValue::String(self.qmode.to_string())), |
| 1090 | "force_v1" => Some(NAValue::Bool(self.force_v1)), |
| 1091 | _ => None, |
| 1092 | } |
| 1093 | } |
| 1094 | } |
| 1095 | |
| 1096 | pub fn get_encoder() -> Box<dyn NAEncoder + Send> { |
| 1097 | Box::new(CinepakEncoder::new()) |
| 1098 | } |
| 1099 | |
| 1100 | #[cfg(test)] |
| 1101 | mod test { |
| 1102 | use nihav_core::codecs::*; |
| 1103 | use nihav_core::demuxers::*; |
| 1104 | use nihav_core::muxers::*; |
| 1105 | use crate::*; |
| 1106 | use nihav_codec_support::test::enc_video::*; |
| 1107 | |
| 1108 | #[test] |
| 1109 | fn test_cinepak_encoder() { |
| 1110 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 1111 | generic_register_all_demuxers(&mut dmx_reg); |
| 1112 | let mut dec_reg = RegisteredDecoders::new(); |
| 1113 | generic_register_all_decoders(&mut dec_reg); |
| 1114 | let mut mux_reg = RegisteredMuxers::new(); |
| 1115 | generic_register_all_muxers(&mut mux_reg); |
| 1116 | let mut enc_reg = RegisteredEncoders::new(); |
| 1117 | generic_register_all_encoders(&mut enc_reg); |
| 1118 | |
| 1119 | // sample: https://samples.mplayerhq.hu/V-codecs/UCOD/TalkingHead_352x288.avi |
| 1120 | let dec_config = DecoderTestParams { |
| 1121 | demuxer: "avi", |
| 1122 | in_name: "assets/Misc/TalkingHead_352x288.avi", |
| 1123 | stream_type: StreamType::Video, |
| 1124 | limit: Some(2), |
| 1125 | dmx_reg, dec_reg, |
| 1126 | }; |
| 1127 | let enc_config = EncoderTestParams { |
| 1128 | muxer: "avi", |
| 1129 | enc_name: "cinepak", |
| 1130 | out_name: "cinepak.avi", |
| 1131 | mux_reg, enc_reg, |
| 1132 | }; |
| 1133 | let dst_vinfo = NAVideoInfo { |
| 1134 | width: 0, |
| 1135 | height: 0, |
| 1136 | format: YUV420_FORMAT, |
| 1137 | flipped: true, |
| 1138 | bits: 12, |
| 1139 | }; |
| 1140 | let enc_params = EncodeParameters { |
| 1141 | format: NACodecTypeInfo::Video(dst_vinfo), |
| 1142 | quality: 0, |
| 1143 | bitrate: 0, |
| 1144 | tb_num: 0, |
| 1145 | tb_den: 0, |
| 1146 | flags: 0, |
| 1147 | }; |
| 1148 | //test_encoding_to_file(&dec_config, &enc_config, enc_params, &[]); |
| 1149 | test_encoding_md5(&dec_config, &enc_config, enc_params, &[], |
| 1150 | &[0x1d4690c8, 0x3b15b4b3, 0xc2df3c7b, 0x1a25b159]); |
| 1151 | } |
| 1152 | } |