| 1 | use nihav_core::codecs::*; |
| 2 | use nihav_core::io::byteio::*; |
| 3 | use nihav_core::io::bitreader::*; |
| 4 | use nihav_core::io::codebook::*; |
| 5 | use nihav_core::io::intcode::*; |
| 6 | use std::str::FromStr; |
| 7 | |
| 8 | use std::ops::*; |
| 9 | |
| 10 | #[derive(Clone,Copy,Default,Debug,PartialEq)] |
| 11 | struct MV { |
| 12 | x: i8, |
| 13 | y: i8, |
| 14 | } |
| 15 | |
| 16 | impl Add for MV { |
| 17 | type Output = MV; |
| 18 | fn add(self, other: MV) -> MV { MV { x: self.x + other.x, y: self.y + other.y } } |
| 19 | } |
| 20 | |
| 21 | impl AddAssign for MV { |
| 22 | fn add_assign(&mut self, other: MV) { self.x += other.x; self.y += other.y; } |
| 23 | } |
| 24 | |
| 25 | impl Sub for MV { |
| 26 | type Output = MV; |
| 27 | fn sub(self, other: MV) -> MV { MV { x: self.x - other.x, y: self.y - other.y } } |
| 28 | } |
| 29 | |
| 30 | impl SubAssign for MV { |
| 31 | fn sub_assign(&mut self, other: MV) { self.x -= other.x; self.y -= other.y; } |
| 32 | } |
| 33 | |
| 34 | impl MV { |
| 35 | fn pred(t: MV, tl: MV, l: MV) -> MV { |
| 36 | let x0 = i16::from(t.x); |
| 37 | let x1 = i16::from(tl.x); |
| 38 | let x2 = i16::from(l.x); |
| 39 | let y0 = i16::from(t.y); |
| 40 | let y1 = i16::from(tl.y); |
| 41 | let y2 = i16::from(l.y); |
| 42 | let x = x0 + x1 + x2 - x0.min(x1).min(x2) - x0.max(x1).max(x2); |
| 43 | let y = y0 + y1 + y2 - y0.min(y1).min(y2) - y0.max(y1).max(y2); |
| 44 | MV{ x: x as i8, y: y as i8 } |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | trait ReadCodes { |
| 49 | fn read_gammap(&mut self) -> BitReaderResult<u32>; |
| 50 | fn read_gammap_s(&mut self) -> BitReaderResult<i32>; |
| 51 | fn read_unary(&mut self) -> BitReaderResult<u32>; |
| 52 | } |
| 53 | |
| 54 | impl<'a> ReadCodes for BitReader<'a> { |
| 55 | fn read_gammap(&mut self) -> BitReaderResult<u32> { |
| 56 | Ok(self.read_code(UintCodeType::GammaP)? - 1) |
| 57 | } |
| 58 | fn read_gammap_s(&mut self) -> BitReaderResult<i32> { |
| 59 | let val = self.read_code(UintCodeType::GammaP)?; |
| 60 | if (val & 1) == 0 { |
| 61 | Ok((val >> 1) as i32) |
| 62 | } else { |
| 63 | Ok((1 - (val as i32)) >> 1) |
| 64 | } |
| 65 | } |
| 66 | fn read_unary(&mut self) -> BitReaderResult<u32> { |
| 67 | self.read_code(UintCodeType::UnaryZeroes) |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | const CUR_BUF: usize = 3; |
| 72 | const CHROMA_OFF: usize = 256 * 256; |
| 73 | |
| 74 | macro_rules! mc { |
| 75 | ($bufs: expr, $src_id: expr, $dst_id: expr, $mx: expr, $my: expr, $xpos: expr, $ypos: expr, $w: expr, $h: expr, $ydelta: expr, $udelta: expr, $vdelta: expr, $width: expr, $height: expr) => { |
| 76 | if ($mx + ($xpos as isize) < 0) || ($mx + (($xpos + $w) as isize) > ($width as isize)) { |
| 77 | return Err(DecoderError::InvalidData); |
| 78 | } |
| 79 | if ($my + ($ypos as isize) < 0) || ($my + (($ypos + $h) as isize) > ($height as isize)) { |
| 80 | return Err(DecoderError::InvalidData); |
| 81 | } |
| 82 | |
| 83 | let sx = (($xpos as isize) + $mx) as usize; |
| 84 | let sy = (($ypos as isize) + $my) as usize; |
| 85 | |
| 86 | let mut soff = sx + sy * 256; |
| 87 | let mut doff = $xpos + $ypos * 256; |
| 88 | for _y in 0..$h { |
| 89 | for x in 0..$w { |
| 90 | $bufs[$dst_id][doff + x] = (i32::from($bufs[$src_id][soff + x]) + $ydelta).max(0).min(255) as u8; |
| 91 | } |
| 92 | soff += 256; |
| 93 | doff += 256; |
| 94 | } |
| 95 | let mut soff = CHROMA_OFF + sx / 2 + (sy / 2) * 256; |
| 96 | let mut doff = CHROMA_OFF + $xpos / 2 + $ypos / 2 * 256; |
| 97 | for _y in 0..$h / 2 { |
| 98 | for x in 0..$w / 2 { |
| 99 | $bufs[$dst_id][doff + x] = (i32::from($bufs[$src_id][soff + x]) + $udelta).max(0).min(255) as u8; |
| 100 | $bufs[$dst_id][doff + x + 128] = (i32::from($bufs[$src_id][soff + x + 128]) + $vdelta).max(0).min(255) as u8; |
| 101 | } |
| 102 | soff += 256; |
| 103 | doff += 256; |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | fn pred_dc(buf: &mut [u8], mut pos: usize, x: usize, y: usize, w: usize, h: usize) { |
| 109 | let dc = if x == 0 && y == 0 { |
| 110 | 128 |
| 111 | } else if y == 0 { |
| 112 | let mut sum = 0; |
| 113 | let hh = h as u16; |
| 114 | for i in 0..h { |
| 115 | sum += u16::from(buf[pos - 1 + i * 256]); |
| 116 | } |
| 117 | ((sum + hh / 2) / hh) as u8 |
| 118 | } else if x == 0 { |
| 119 | let mut sum = 0; |
| 120 | let ww = w as u16; |
| 121 | for i in 0..w { |
| 122 | sum += u16::from(buf[pos - 256 + i]); |
| 123 | } |
| 124 | ((sum + ww / 2) / ww) as u8 |
| 125 | } else { |
| 126 | let mut sum = 0; |
| 127 | let ww = w as u16; |
| 128 | for i in 0..w { |
| 129 | sum += u16::from(buf[pos - 256 + i]); |
| 130 | } |
| 131 | let wdc = (sum + ww / 2) / ww; |
| 132 | |
| 133 | let mut sum = 0; |
| 134 | let hh = h as u16; |
| 135 | for i in 0..h { |
| 136 | sum += u16::from(buf[pos - 1 + i * 256]); |
| 137 | } |
| 138 | let hdc = (sum + hh / 2) / hh; |
| 139 | |
| 140 | ((wdc + hdc + 1) >> 1) as u8 |
| 141 | }; |
| 142 | for _ in 0..h { |
| 143 | for x in 0..w { |
| 144 | buf[pos + x] = dc; |
| 145 | } |
| 146 | pos += 256; |
| 147 | } |
| 148 | } |
| 149 | fn pred_dc4x4(buf: &mut [u8], mut pos: usize, x: usize, y: usize) { |
| 150 | if x == 0 && y == 0 { |
| 151 | for _ in 0..4 { |
| 152 | for x in 0..4 { |
| 153 | buf[x] = 0x80; |
| 154 | } |
| 155 | pos += 256; |
| 156 | } |
| 157 | return; |
| 158 | } |
| 159 | let mut sum = 0; |
| 160 | let mut shift = 1; |
| 161 | if y != 0 { |
| 162 | for i in 0..4 { |
| 163 | sum += u16::from(buf[pos - 256 + i]); |
| 164 | } |
| 165 | sum += 2; |
| 166 | shift += 1; |
| 167 | } |
| 168 | if x != 0 { |
| 169 | for i in 0..4 { |
| 170 | sum += u16::from(buf[pos + i * 256 - 1]); |
| 171 | } |
| 172 | sum += 2; |
| 173 | shift += 1; |
| 174 | } |
| 175 | let dc = (sum >> shift) as u8; |
| 176 | for _ in 0..4 { |
| 177 | for x in 0..4 { |
| 178 | buf[pos + x] = dc; |
| 179 | } |
| 180 | pos += 256; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | fn pred_hor(buf: &mut [u8], mut pos: usize, w: usize, h: usize) { |
| 185 | for _ in 0..h { |
| 186 | for x in 0..w { |
| 187 | buf[pos + x] = buf[pos - 1]; |
| 188 | } |
| 189 | pos += 256; |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | fn pred_ver(buf: &mut [u8], mut pos: usize, w: usize, h: usize) { |
| 194 | for _ in 0..h { |
| 195 | for x in 0..w { |
| 196 | buf[pos + x] = buf[pos + x - 256]; |
| 197 | } |
| 198 | pos += 256; |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | fn avg(a: u8, b: u8) -> u8 { |
| 203 | ((u16::from(a) + u16::from(b) + 1) >> 1) as u8 |
| 204 | } |
| 205 | fn avg_nr(a: u8, b: u8) -> u8 { |
| 206 | ((u16::from(a) + u16::from(b)) >> 1) as u8 |
| 207 | } |
| 208 | fn interp2(a: u8, b: u8, c: u8) -> u8 { |
| 209 | ((u16::from(a) + 2 * u16::from(b) + u16::from(c) + 2) >> 2) as u8 |
| 210 | } |
| 211 | |
| 212 | fn pred_ddown_left(blk: &mut [u8], pos: usize) { |
| 213 | let (t0, t1, t2, t3) = (blk[pos - 256], blk[pos - 256 + 1], blk[pos - 256 + 2], blk[pos - 256 + 3]); |
| 214 | let (t4, t5, t6, t7) = (blk[pos - 256 + 4], blk[pos - 256 + 5], blk[pos - 256 + 6], blk[pos - 256 + 7]); |
| 215 | |
| 216 | blk[pos + 0 + 0 * 256] = interp2(t0, t1, t2); |
| 217 | let pix = interp2(t1, t2, t3); |
| 218 | blk[pos + 1 + 0 * 256] = pix; |
| 219 | blk[pos + 0 + 1 * 256] = pix; |
| 220 | let pix = interp2(t2, t3, t4); |
| 221 | blk[pos + 2 + 0 * 256] = pix; |
| 222 | blk[pos + 1 + 1 * 256] = pix; |
| 223 | blk[pos + 0 + 2 * 256] = pix; |
| 224 | let pix = interp2(t3, t4, t5); |
| 225 | blk[pos + 3 + 0 * 256] = pix; |
| 226 | blk[pos + 2 + 1 * 256] = pix; |
| 227 | blk[pos + 1 + 2 * 256] = pix; |
| 228 | blk[pos + 0 + 3 * 256] = pix; |
| 229 | let pix = interp2(t4, t5, t6); |
| 230 | blk[pos + 3 + 1 * 256] = pix; |
| 231 | blk[pos + 2 + 2 * 256] = pix; |
| 232 | blk[pos + 1 + 3 * 256] = pix; |
| 233 | let pix = interp2(t5, t6, t7); |
| 234 | blk[pos + 3 + 2 * 256] = pix; |
| 235 | blk[pos + 2 + 3 * 256] = pix; |
| 236 | blk[pos + 3 + 3 * 256] = interp2(t6, t7, t7); |
| 237 | } |
| 238 | fn pred_ddown_right(blk: &mut [u8], pos: usize) { |
| 239 | let (l0, l1, l2, l3) = (blk[pos - 1], blk[pos + 256 - 1], blk[pos + 256 * 2 - 1], blk[pos + 256 * 3 - 1]); |
| 240 | let (tl, t0, t1, t2) = (blk[pos - 256 - 1], blk[pos - 256], blk[pos - 256 + 1], blk[pos - 256 + 2]); |
| 241 | let t3 = blk[pos - 256 + 3]; |
| 242 | |
| 243 | blk[pos + 0 + 3 * 256] = interp2(l1, l2, l3); |
| 244 | let pix = interp2(l0, l1, l2); |
| 245 | blk[pos + 0 + 2 * 256] = pix; |
| 246 | blk[pos + 1 + 3 * 256] = pix; |
| 247 | let pix = interp2(tl, l0, l1); |
| 248 | blk[pos + 0 + 1 * 256] = pix; |
| 249 | blk[pos + 1 + 2 * 256] = pix; |
| 250 | blk[pos + 2 + 3 * 256] = pix; |
| 251 | let pix = interp2(l0, tl, t0); |
| 252 | blk[pos + 0 + 0 * 256] = pix; |
| 253 | blk[pos + 1 + 1 * 256] = pix; |
| 254 | blk[pos + 2 + 2 * 256] = pix; |
| 255 | blk[pos + 3 + 3 * 256] = pix; |
| 256 | let pix = interp2(tl, t0, t1); |
| 257 | blk[pos + 1 + 0 * 256] = pix; |
| 258 | blk[pos + 2 + 1 * 256] = pix; |
| 259 | blk[pos + 3 + 2 * 256] = pix; |
| 260 | let pix = interp2(t0, t1, t2); |
| 261 | blk[pos + 2 + 0 * 256] = pix; |
| 262 | blk[pos + 3 + 1 * 256] = pix; |
| 263 | blk[pos + 3 + 0 * 256] = interp2(t1, t2, t3); |
| 264 | } |
| 265 | fn pred_ver_right(blk: &mut [u8], pos: usize) { |
| 266 | let (l0, l1, l2) = (blk[pos - 1], blk[pos + 256 - 1], blk[pos + 256 * 2 - 1]); |
| 267 | let (tl, t0, t1, t2, t3) = (blk[pos - 256 - 1], blk[pos - 256], blk[pos - 256 + 1], blk[pos - 256 + 2], blk[pos - 256 + 3]); |
| 268 | |
| 269 | blk[pos + 0 + 3 * 256] = interp2(l0, l1, l2); |
| 270 | blk[pos + 0 + 2 * 256] = interp2(tl, l0, l1); |
| 271 | let pix = interp2(l0, tl, t0); |
| 272 | blk[pos + 0 + 1 * 256] = pix; |
| 273 | blk[pos + 1 + 3 * 256] = pix; |
| 274 | let pix = avg(tl, t0); |
| 275 | blk[pos + 0 + 0 * 256] = pix; |
| 276 | blk[pos + 1 + 2 * 256] = pix; |
| 277 | let pix = interp2(tl, t0, t1); |
| 278 | blk[pos + 1 + 1 * 256] = pix; |
| 279 | blk[pos + 2 + 3 * 256] = pix; |
| 280 | let pix = avg(t0, t1); |
| 281 | blk[pos + 1 + 0 * 256] = pix; |
| 282 | blk[pos + 2 + 2 * 256] = pix; |
| 283 | let pix = interp2(t0, t1, t2); |
| 284 | blk[pos + 2 + 1 * 256] = pix; |
| 285 | blk[pos + 3 + 3 * 256] = pix; |
| 286 | let pix = avg(t1, t2); |
| 287 | blk[pos + 2 + 0 * 256] = pix; |
| 288 | blk[pos + 3 + 2 * 256] = pix; |
| 289 | blk[pos + 3 + 1 * 256] = interp2(t1, t2, t3); |
| 290 | blk[pos + 3 + 0 * 256] = avg(t2, t3); |
| 291 | } |
| 292 | fn pred_hor_down(blk: &mut [u8], pos: usize) { |
| 293 | let (l0, l1, l2, l3) = (blk[pos - 1], blk[pos + 256 - 1], blk[pos + 256 * 2 - 1], blk[pos + 256 * 3 - 1]); |
| 294 | let (tl, t0, t1, t2) = (blk[pos - 256 - 1], blk[pos - 256], blk[pos - 256 + 1], blk[pos - 256 + 2]); |
| 295 | |
| 296 | blk[pos + 0 + 3 * 256] = avg(l2, l3); |
| 297 | blk[pos + 1 + 3 * 256] = interp2(l1, l2, l3); |
| 298 | let pix = avg(l1, l2); |
| 299 | blk[pos + 0 + 2 * 256] = pix; |
| 300 | blk[pos + 2 + 3 * 256] = pix; |
| 301 | let pix = interp2(l0, l1, l2); |
| 302 | blk[pos + 1 + 2 * 256] = pix; |
| 303 | blk[pos + 3 + 3 * 256] = pix; |
| 304 | let pix = avg(l0, l1); |
| 305 | blk[pos + 0 + 1 * 256] = pix; |
| 306 | blk[pos + 2 + 2 * 256] = pix; |
| 307 | let pix = interp2(tl, l0, l1); |
| 308 | blk[pos + 1 + 1 * 256] = pix; |
| 309 | blk[pos + 3 + 2 * 256] = pix; |
| 310 | let pix = avg(tl, l0); |
| 311 | blk[pos + 0 + 0 * 256] = pix; |
| 312 | blk[pos + 2 + 1 * 256] = pix; |
| 313 | let pix = interp2(l0, tl, t0); |
| 314 | blk[pos + 1 + 0 * 256] = pix; |
| 315 | blk[pos + 3 + 1 * 256] = pix; |
| 316 | blk[pos + 2 + 0 * 256] = interp2(tl, t0, t1); |
| 317 | blk[pos + 3 + 0 * 256] = interp2(t0, t1, t2); |
| 318 | } |
| 319 | fn pred_ver_left(blk: &mut [u8], pos: usize) { |
| 320 | let (t0, t1, t2, t3) = (blk[pos - 256], blk[pos - 256 + 1], blk[pos - 256 + 2], blk[pos - 256 + 3]); |
| 321 | let (t4, t5, t6) = (blk[pos - 256 + 4], blk[pos - 256 + 5], blk[pos - 256 + 6]); |
| 322 | |
| 323 | blk[pos + 3 + 3 * 256] = interp2(t4, t5, t6); |
| 324 | blk[pos + 3 + 2 * 256] = avg(t4, t5); |
| 325 | let pix = interp2(t3, t4, t5); |
| 326 | blk[pos + 3 + 1 * 256] = pix; |
| 327 | blk[pos + 2 + 3 * 256] = pix; |
| 328 | let pix = avg(t3, t4); |
| 329 | blk[pos + 3 + 0 * 256] = pix; |
| 330 | blk[pos + 2 + 2 * 256] = pix; |
| 331 | let pix = interp2(t2, t3, t4); |
| 332 | blk[pos + 2 + 1 * 256] = pix; |
| 333 | blk[pos + 1 + 3 * 256] = pix; |
| 334 | let pix = avg(t2, t3); |
| 335 | blk[pos + 2 + 0 * 256] = pix; |
| 336 | blk[pos + 1 + 2 * 256] = pix; |
| 337 | let pix = interp2(t1, t2, t3); |
| 338 | blk[pos + 1 + 1 * 256] = pix; |
| 339 | blk[pos + 0 + 3 * 256] = pix; |
| 340 | let pix = avg(t1, t2); |
| 341 | blk[pos + 1 + 0 * 256] = pix; |
| 342 | blk[pos + 0 + 2 * 256] = pix; |
| 343 | blk[pos + 0 + 1 * 256] = interp2(t0, t1, t2); |
| 344 | blk[pos + 0 + 0 * 256] = avg(t0, t1); |
| 345 | } |
| 346 | fn pred_hor_up(blk: &mut [u8], pos: usize) { |
| 347 | let (l0, l1, l2, l3) = (blk[pos - 1], blk[pos + 256 - 1], blk[pos + 256 * 2 - 1], blk[pos + 256 * 3 - 1]); |
| 348 | |
| 349 | blk[pos + 0 + 0 * 256] = avg(l0, l1); |
| 350 | blk[pos + 1 + 0 * 256] = interp2(l0, l1, l2); |
| 351 | let pix = avg(l1, l2); |
| 352 | blk[pos + 2 + 0 * 256] = pix; |
| 353 | blk[pos + 0 + 1 * 256] = pix; |
| 354 | let pix = interp2(l1, l2, l3); |
| 355 | blk[pos + 3 + 0 * 256] = pix; |
| 356 | blk[pos + 1 + 1 * 256] = pix; |
| 357 | let pix = avg(l2, l3); |
| 358 | blk[pos + 2 + 1 * 256] = pix; |
| 359 | blk[pos + 0 + 2 * 256] = pix; |
| 360 | let pix = interp2(l2, l3, l3); |
| 361 | blk[pos + 3 + 1 * 256] = pix; |
| 362 | blk[pos + 1 + 2 * 256] = pix; |
| 363 | blk[pos + 0 + 3 * 256] = l3; |
| 364 | blk[pos + 2 + 2 * 256] = l3; |
| 365 | blk[pos + 3 + 2 * 256] = l3; |
| 366 | blk[pos + 1 + 3 * 256] = l3; |
| 367 | blk[pos + 2 + 3 * 256] = l3; |
| 368 | blk[pos + 3 + 3 * 256] = l3; |
| 369 | } |
| 370 | |
| 371 | fn pred_plane(blk: &mut [u8], pos: usize, w: usize, h: usize) { |
| 372 | if w == 1 && h == 1 { |
| 373 | return; |
| 374 | } |
| 375 | if h == 1 { |
| 376 | blk[pos + w / 2 - 1] = avg_nr(blk[pos - 1], blk[pos + w - 1]); |
| 377 | if w > 2 { |
| 378 | pred_plane(blk, pos, w / 2, 1); |
| 379 | pred_plane(blk, pos + w / 2, w / 2, 1); |
| 380 | } |
| 381 | return; |
| 382 | } |
| 383 | if w == 1 { |
| 384 | blk[pos + (h / 2 - 1) * 256] = avg_nr(blk[pos - 256], blk[pos + (h - 1) * 256]); |
| 385 | if h > 2 { |
| 386 | pred_plane(blk, pos, 1, h / 2); |
| 387 | pred_plane(blk, pos + (h / 2) * 256, 1, h / 2); |
| 388 | } |
| 389 | return; |
| 390 | } |
| 391 | |
| 392 | let is_even_block = ((w.trailing_zeros() + h.trailing_zeros()) & 1) == 0; // i.e. w*h = 256/64/16/4 |
| 393 | |
| 394 | let hoff = (h - 1) * 256; |
| 395 | let h2off = (h / 2 - 1) * 256; |
| 396 | let woff = w - 1; |
| 397 | let w2off = w / 2 - 1; |
| 398 | let dr = blk[pos + woff + hoff]; |
| 399 | let tr = blk[pos + woff - 256]; |
| 400 | let dl = blk[pos - 1 + hoff]; |
| 401 | |
| 402 | let dm = avg_nr(dl, dr); |
| 403 | blk[pos + w2off + hoff] = dm; |
| 404 | blk[pos + woff + h2off] = avg_nr(tr, dr); |
| 405 | let (val1, val2) = if is_even_block { |
| 406 | (dm, blk[pos + w2off - 256]) |
| 407 | } else { |
| 408 | (blk[pos + woff + h2off], blk[pos - 1 + h2off]) |
| 409 | }; |
| 410 | blk[pos + w2off + h2off] = avg_nr(val1, val2); |
| 411 | |
| 412 | let hw = w / 2; |
| 413 | let hh = h / 2; |
| 414 | pred_plane(blk, pos, hw, hh); |
| 415 | pred_plane(blk, pos + hw, hw, hh); |
| 416 | pred_plane(blk, pos + hh * 256, hw, hh); |
| 417 | pred_plane(blk, pos + hw + hh * 256, hw, hh); |
| 418 | } |
| 419 | fn pred_plane_delta(blk: &mut [u8], pos: usize, w: usize, h: usize, delta: i32) { |
| 420 | let tr = blk[pos + w - 1 - 256]; |
| 421 | let dl = blk[pos + 256 * (h - 1) - 1]; |
| 422 | let pred = avg(tr, dl).wrapping_add(delta as u8); |
| 423 | blk[pos + 256 * (h - 1) + w - 1] = pred; |
| 424 | pred_plane(blk, pos, w, h); |
| 425 | } |
| 426 | |
| 427 | struct Codebooks { |
| 428 | nc_cb: [Codebook<u8>; 3], |
| 429 | num_zero_cb: [Codebook<u8>; 15], |
| 430 | zero_run_cb: [Codebook<u8>; 6], |
| 431 | } |
| 432 | |
| 433 | fn map_idx(idx: usize) -> u8 { idx as u8 } |
| 434 | macro_rules! create_cb { |
| 435 | ($bits_tab: expr, $lens_tab: expr) => {{ |
| 436 | let mut cbr = TableCodebookDescReader::new($bits_tab, $lens_tab, map_idx); |
| 437 | Codebook::new(&mut cbr, CodebookMode::MSB).unwrap() |
| 438 | }} |
| 439 | } |
| 440 | |
| 441 | impl Codebooks { |
| 442 | fn new() -> Self { |
| 443 | let nc_cb0 = create_cb!(&NC_BITS[0], &NC_LENS[0]); |
| 444 | let nc_cb1 = create_cb!(&NC_BITS[1], &NC_LENS[1]); |
| 445 | let nc_cb2 = create_cb!(&NC_BITS[2], &NC_LENS[2]); |
| 446 | |
| 447 | let nz0 = create_cb!(&NUM_ZERO_BITS[ 0], &NUM_ZERO_LENS[ 0]); |
| 448 | let nz1 = create_cb!(&NUM_ZERO_BITS[ 1], &NUM_ZERO_LENS[ 1]); |
| 449 | let nz2 = create_cb!(&NUM_ZERO_BITS[ 2], &NUM_ZERO_LENS[ 2]); |
| 450 | let nz3 = create_cb!(&NUM_ZERO_BITS[ 3], &NUM_ZERO_LENS[ 3]); |
| 451 | let nz4 = create_cb!(&NUM_ZERO_BITS[ 4], &NUM_ZERO_LENS[ 4]); |
| 452 | let nz5 = create_cb!(&NUM_ZERO_BITS[ 5], &NUM_ZERO_LENS[ 5]); |
| 453 | let nz6 = create_cb!(&NUM_ZERO_BITS[ 6], &NUM_ZERO_LENS[ 6]); |
| 454 | let nz7 = create_cb!(&NUM_ZERO_BITS[ 7], &NUM_ZERO_LENS[ 7]); |
| 455 | let nz8 = create_cb!(&NUM_ZERO_BITS[ 8], &NUM_ZERO_LENS[ 8]); |
| 456 | let nz9 = create_cb!(&NUM_ZERO_BITS[ 9], &NUM_ZERO_LENS[ 9]); |
| 457 | let nz10 = create_cb!(&NUM_ZERO_BITS[10], &NUM_ZERO_LENS[10]); |
| 458 | let nz11 = create_cb!(&NUM_ZERO_BITS[11], &NUM_ZERO_LENS[11]); |
| 459 | let nz12 = create_cb!(&NUM_ZERO_BITS[12], &NUM_ZERO_LENS[12]); |
| 460 | let nz13 = create_cb!(&NUM_ZERO_BITS[13], &NUM_ZERO_LENS[13]); |
| 461 | let nz14 = create_cb!(&NUM_ZERO_BITS[14], &NUM_ZERO_LENS[14]); |
| 462 | |
| 463 | let zcb0 = create_cb!(&ZERO_RUN_BITS[0], &ZERO_RUN_LENS[0]); |
| 464 | let zcb1 = create_cb!(&ZERO_RUN_BITS[1], &ZERO_RUN_LENS[1]); |
| 465 | let zcb2 = create_cb!(&ZERO_RUN_BITS[2], &ZERO_RUN_LENS[2]); |
| 466 | let zcb3 = create_cb!(&ZERO_RUN_BITS[3], &ZERO_RUN_LENS[3]); |
| 467 | let zcb4 = create_cb!(&ZERO_RUN_BITS[4], &ZERO_RUN_LENS[4]); |
| 468 | let zcb5 = create_cb!(&ZERO_RUN_BITS[5], &ZERO_RUN_LENS[5]); |
| 469 | Self { |
| 470 | nc_cb: [nc_cb0, nc_cb1, nc_cb2], |
| 471 | num_zero_cb: [nz0, nz1, nz2, nz3, nz4, nz5, nz6, nz7, nz8, nz9, nz10, nz11, nz12, nz13, nz14], |
| 472 | zero_run_cb: [zcb0, zcb1, zcb2, zcb3, zcb4, zcb5], |
| 473 | } |
| 474 | } |
| 475 | } |
| 476 | |
| 477 | macro_rules! transform { |
| 478 | ($a: expr, $b: expr, $c: expr, $d: expr, $q0: expr, $q1: expr) => { |
| 479 | let t0 = ($a + $c).wrapping_mul($q0); |
| 480 | let t1 = ($a - $c).wrapping_mul($q0); |
| 481 | let tb = $b.wrapping_mul($q1); |
| 482 | let td = $d.wrapping_mul($q1); |
| 483 | let t2 = tb + (td >> 1); |
| 484 | let t3 = (tb >> 1) - td; |
| 485 | $a = t0 + t2; |
| 486 | $b = t1 + t3; |
| 487 | $c = t1 - t3; |
| 488 | $d = t0 - t2; |
| 489 | } |
| 490 | } |
| 491 | |
| 492 | fn idct_add(qmat: &[i32; 8], blk: &mut [i32; 16], dst: &mut [u8]) { |
| 493 | for i in 0..4 { |
| 494 | transform!(blk[i + 0 * 4], blk[i + 1 * 4], blk[i + 2 * 4], blk[i + 3 * 4], qmat[i], qmat[i + 4]); |
| 495 | } |
| 496 | for (dline, row) in dst.chunks_mut(256).zip(blk.chunks_mut(4)) { |
| 497 | transform!(row[0], row[1], row[2], row[3], 1, 1); |
| 498 | for (out, coef) in dline.iter_mut().zip(row.iter_mut()) { |
| 499 | *out = (i32::from(*out) + ((*coef + 0x20) >> 6)).max(0).min(255) as u8; |
| 500 | } |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | fn decode_coeffs(br: &mut BitReader, codebooks: &Codebooks, qmat: &[i32; 8], ctx: u8, dst: &mut [u8]) -> DecoderResult<u8> { |
| 505 | const ZIGZAG: [usize; 16] = [ |
| 506 | 0, 1, 4, 8, |
| 507 | 5, 2, 3, 6, |
| 508 | 9, 12, 13, 10, |
| 509 | 7, 11, 14, 15 |
| 510 | ]; |
| 511 | const MAX_LEVEL: [i32; 6] = [ 2, 5, 11, 23, 47, 0x8000 ]; |
| 512 | |
| 513 | let (ncoeffs, nones) = if ctx < 8 { |
| 514 | let sym = br.read_cb(&codebooks.nc_cb[NC_MAP[ctx as usize]])?; |
| 515 | if sym == 0 { |
| 516 | return Ok(0); |
| 517 | } |
| 518 | (sym >> 2, sym & 3) |
| 519 | } else { |
| 520 | let ncoeffs = (br.read(4)? + 1) as u8; |
| 521 | let nones = br.read(2)? as u8; |
| 522 | if ncoeffs < nones { |
| 523 | return Ok(0); |
| 524 | } |
| 525 | (ncoeffs, nones) |
| 526 | }; |
| 527 | let mut num_zero = if ncoeffs == 16 { 0 } else { |
| 528 | br.read_cb(&codebooks.num_zero_cb[ncoeffs as usize - 1])? |
| 529 | }; |
| 530 | validate!(ncoeffs + num_zero <= 16); |
| 531 | let mut blk = [0i32; 16]; |
| 532 | let mut level = 0usize; |
| 533 | let mut coef_left = ncoeffs; |
| 534 | let mut ones_left = nones; |
| 535 | let mut idx = ncoeffs + num_zero; |
| 536 | while coef_left > 0 { |
| 537 | let val = if ones_left > 0 { |
| 538 | ones_left -= 1; |
| 539 | if !br.read_bool()? { 1 } else { -1 } |
| 540 | } else { |
| 541 | let prefix = br.read_unary()?; |
| 542 | let val = if prefix < 15 { |
| 543 | (br.read(level as u8)? | (prefix << level)) as i32 |
| 544 | } else { |
| 545 | (br.read(11)? + (15 << level)) as i32 |
| 546 | }; |
| 547 | if val > MAX_LEVEL[level] { |
| 548 | level += 1; |
| 549 | } |
| 550 | if !br.read_bool()? { |
| 551 | val + 1 |
| 552 | } else { |
| 553 | -(val + 1) |
| 554 | } |
| 555 | }; |
| 556 | idx -= 1; |
| 557 | blk[ZIGZAG[idx as usize]] = val; |
| 558 | coef_left -= 1; |
| 559 | if num_zero > 0 && coef_left > 0 { |
| 560 | let run = if num_zero < 7 { |
| 561 | br.read_cb(&codebooks.zero_run_cb[num_zero as usize - 1])? |
| 562 | } else { |
| 563 | if br.peek(3) != 0 { |
| 564 | 7 - (br.read(3)? as u8) |
| 565 | } else { |
| 566 | (br.read_unary()? as u8) + 4 |
| 567 | } |
| 568 | }; |
| 569 | validate!(run <= num_zero); |
| 570 | idx -= run; |
| 571 | num_zero -= run; |
| 572 | } |
| 573 | } |
| 574 | idct_add(qmat, &mut blk, dst); |
| 575 | Ok(ncoeffs) |
| 576 | } |
| 577 | |
| 578 | const NCSTRIDE: usize = 64 + 1; |
| 579 | |
| 580 | struct VXVideoDecoder { |
| 581 | info: NACodecInfoRef, |
| 582 | width: usize, |
| 583 | height: usize, |
| 584 | buf: [[u8; 256 * 392]; 4], // layout is luma with stride 256 and at 256*256 chroma lines with two components starting at positions 0 and 128 and stride 256 |
| 585 | refs: [usize; 4], |
| 586 | ipred4x4: [u8; 25], |
| 587 | y_ncoeffs: [u8; NCSTRIDE * (256 / 4 + 1)], |
| 588 | c_ncoeffs: [u8; NCSTRIDE * (256 / 8 + 1)], |
| 589 | mvs: [MV; 16 * 16], |
| 590 | pred_mv: MV, |
| 591 | cur_mv: MV, |
| 592 | qmat: [i32; 8], |
| 593 | codebooks: Codebooks, |
| 594 | } |
| 595 | |
| 596 | impl VXVideoDecoder { |
| 597 | fn new() -> Self { |
| 598 | Self { |
| 599 | info: NACodecInfoRef::default(), |
| 600 | buf: [[0x80; 256 * 392]; 4], |
| 601 | width: 0, |
| 602 | height: 0, |
| 603 | refs: [0, 1, 2, 3], |
| 604 | ipred4x4: [9; 25], |
| 605 | y_ncoeffs: [0; NCSTRIDE * (256 / 4 + 1)], |
| 606 | c_ncoeffs: [0; NCSTRIDE * (256 / 8 + 1)], |
| 607 | mvs: [MV::default(); 16 * 16], |
| 608 | cur_mv: MV::default(), |
| 609 | pred_mv: MV::default(), |
| 610 | qmat: [0; 8], |
| 611 | codebooks: Codebooks::new(), |
| 612 | } |
| 613 | } |
| 614 | fn update_refs(&mut self) { |
| 615 | for el in self.refs.iter_mut() { |
| 616 | *el = (*el + 3) & 3; |
| 617 | } |
| 618 | } |
| 619 | fn decode_frame(&mut self, br: &mut BitReader) -> DecoderResult<()> { |
| 620 | let mut mv_pos = 18; |
| 621 | for ypos in (0..self.height).step_by(16) { |
| 622 | for xpos in (0..self.width).step_by(16) { |
| 623 | let left_mv = self.mvs[mv_pos - 1]; |
| 624 | let top_mv = self.mvs[mv_pos - 17]; |
| 625 | let tl_mv = self.mvs[mv_pos - 18]; |
| 626 | self.pred_mv = MV::pred(top_mv, tl_mv, left_mv); |
| 627 | self.cur_mv = MV::default(); |
| 628 | self.decode_block(br, xpos, ypos, 16, 16)?; |
| 629 | self.mvs[mv_pos] = self.cur_mv; |
| 630 | mv_pos += 1; |
| 631 | } |
| 632 | mv_pos -= self.width / 16; |
| 633 | mv_pos += 18; |
| 634 | } |
| 635 | Ok(()) |
| 636 | } |
| 637 | fn copy_block(&mut self, xpos: usize, ypos: usize, w: usize, h: usize, ref_buf: usize) -> DecoderResult<()> { |
| 638 | let src = self.refs[ref_buf]; |
| 639 | let dst = self.refs[CUR_BUF]; |
| 640 | self.cur_mv = self.pred_mv; |
| 641 | let mx = self.pred_mv.x as isize; |
| 642 | let my = self.pred_mv.y as isize; |
| 643 | mc!(self.buf, src, dst, mx, my, xpos, ypos, w, h, 0, 0, 0, self.width, self.height); |
| 644 | Ok(()) |
| 645 | } |
| 646 | fn do_mc(&mut self, br: &mut BitReader, xpos: usize, ypos: usize, w: usize, h: usize, ref_buf: usize) -> DecoderResult<()> { |
| 647 | let src = self.refs[ref_buf]; |
| 648 | let dst = self.refs[CUR_BUF]; |
| 649 | let dx = br.read_gammap_s()? as i8; |
| 650 | let dy = br.read_gammap_s()? as i8; |
| 651 | self.cur_mv = self.pred_mv + MV { x: dx, y: dy }; |
| 652 | let mx = self.cur_mv.x as isize; |
| 653 | let my = self.cur_mv.y as isize; |
| 654 | mc!(self.buf, src, dst, mx, my, xpos, ypos, w, h, 0, 0, 0, self.width, self.height); |
| 655 | |
| 656 | Ok(()) |
| 657 | } |
| 658 | fn do_mc_bias(&mut self, br: &mut BitReader, xpos: usize, ypos: usize, w: usize, h: usize) -> DecoderResult<()> { |
| 659 | let src = self.refs[0]; |
| 660 | let dst = self.refs[CUR_BUF]; |
| 661 | let mx = br.read_gammap_s()? as isize; |
| 662 | let my = br.read_gammap_s()? as isize; |
| 663 | let ydelta = br.read_gammap_s()? * 2; |
| 664 | let udelta = br.read_gammap_s()? * 2; |
| 665 | let vdelta = br.read_gammap_s()? * 2; |
| 666 | mc!(self.buf, src, dst, mx, my, xpos, ypos, w, h, ydelta, udelta, vdelta, self.width, self.height); |
| 667 | |
| 668 | Ok(()) |
| 669 | } |
| 670 | fn pred_plane(&mut self, br: &mut BitReader, xpos: usize, ypos: usize, w: usize, h: usize) -> DecoderResult<()> { |
| 671 | let ydelta = br.read_gammap_s()? * 2; |
| 672 | let udelta = br.read_gammap_s()? * 2; |
| 673 | let vdelta = br.read_gammap_s()? * 2; |
| 674 | let yoff = xpos + ypos * 256; |
| 675 | let coff = CHROMA_OFF + xpos / 2 + ypos / 2 * 256; |
| 676 | pred_plane_delta(&mut self.buf[self.refs[CUR_BUF]], yoff, w, h, ydelta); |
| 677 | pred_plane_delta(&mut self.buf[self.refs[CUR_BUF]], coff, w / 2, h / 2, udelta); |
| 678 | pred_plane_delta(&mut self.buf[self.refs[CUR_BUF]], coff + 128, w / 2, h / 2, vdelta); |
| 679 | Ok(()) |
| 680 | } |
| 681 | fn intra_pred(&mut self, br: &mut BitReader, xpos: usize, ypos: usize, w: usize, h: usize) -> DecoderResult<()> { |
| 682 | let ymode = br.read_gammap()? as usize; |
| 683 | let cmode = br.read_gammap()? as usize; |
| 684 | let yoff = xpos + ypos * 256; |
| 685 | let coff = CHROMA_OFF + xpos / 2 + ypos / 2 * 256; |
| 686 | let blk = &mut self.buf[self.refs[CUR_BUF]]; |
| 687 | match ymode { |
| 688 | 0 => pred_ver(blk, yoff, w, h), |
| 689 | 1 => pred_hor(blk, yoff, w, h), |
| 690 | 2 => pred_dc (blk, yoff, xpos, ypos, w, h), |
| 691 | 3 => pred_plane_delta(blk, yoff, w, h, 0), |
| 692 | _ => return Err(DecoderError::InvalidData), |
| 693 | }; |
| 694 | match cmode { |
| 695 | 0 => { |
| 696 | pred_dc(blk, coff, xpos / 2, ypos / 2, w / 2, h / 2); |
| 697 | pred_dc(blk, coff + 128, xpos / 2, ypos / 2, w / 2, h / 2); |
| 698 | }, |
| 699 | 1 => { |
| 700 | pred_hor(blk, coff, w / 2, h / 2); |
| 701 | pred_hor(blk, coff + 128, w / 2, h / 2); |
| 702 | }, |
| 703 | 2 => { |
| 704 | pred_ver(blk, coff, w / 2, h / 2); |
| 705 | pred_ver(blk, coff + 128, w / 2, h / 2); |
| 706 | }, |
| 707 | 3 => { |
| 708 | pred_plane_delta(blk, coff, w / 2, h / 2, 0); |
| 709 | pred_plane_delta(blk, coff + 128, w / 2, h / 2, 0); |
| 710 | }, |
| 711 | _ => return Err(DecoderError::InvalidData), |
| 712 | }; |
| 713 | Ok(()) |
| 714 | } |
| 715 | fn intra_pred4x4(&mut self, br: &mut BitReader, xpos: usize, ypos: usize, w: usize, h: usize) -> DecoderResult<()> { |
| 716 | let mut yoff = xpos + ypos * 256; |
| 717 | let mut idx = 6; |
| 718 | let blk = &mut self.buf[self.refs[CUR_BUF]]; |
| 719 | for y in (0..h).step_by(4) { |
| 720 | for x in (0..w).step_by(4) { |
| 721 | let mut mode = self.ipred4x4[idx - 5].min(self.ipred4x4[idx - 1]); |
| 722 | if mode == 9 { |
| 723 | mode = 2; |
| 724 | } |
| 725 | if !br.read_bool()? { |
| 726 | let mode1 = br.read(3)? as u8; |
| 727 | mode = if mode1 >= mode { mode1 + 1 } else { mode1 }; |
| 728 | } |
| 729 | match mode { |
| 730 | 0 => pred_ver(blk, yoff + x, 4, 4), |
| 731 | 1 => pred_hor(blk, yoff + x, 4, 4), |
| 732 | 2 => pred_dc4x4(blk, yoff + x, xpos + x, ypos + y), |
| 733 | 3 => pred_ddown_left (blk, yoff + x), |
| 734 | 4 => pred_ddown_right(blk, yoff + x), |
| 735 | 5 => pred_ver_right (blk, yoff + x), |
| 736 | 6 => pred_hor_down (blk, yoff + x), |
| 737 | 7 => pred_ver_left (blk, yoff + x), |
| 738 | 8 => pred_hor_up (blk, yoff + x), |
| 739 | _ => unreachable!(), |
| 740 | }; |
| 741 | self.ipred4x4[idx] = mode; |
| 742 | idx += 1; |
| 743 | } |
| 744 | yoff += 256 * 4; |
| 745 | idx -= w / 4; |
| 746 | idx += 5; |
| 747 | } |
| 748 | let cmode = br.read_gammap()? as usize; |
| 749 | let coff = CHROMA_OFF + xpos / 2 + ypos / 2 * 256; |
| 750 | match cmode { |
| 751 | 0 => { |
| 752 | pred_dc(blk, coff, xpos / 2, ypos / 2, w / 2, h / 2); |
| 753 | pred_dc(blk, coff + 128, xpos / 2, ypos / 2, w / 2, h / 2); |
| 754 | }, |
| 755 | 1 => { |
| 756 | pred_hor(blk, coff, w / 2, h / 2); |
| 757 | pred_hor(blk, coff + 128, w / 2, h / 2); |
| 758 | }, |
| 759 | 2 => { |
| 760 | pred_ver(blk, coff, w / 2, h / 2); |
| 761 | pred_ver(blk, coff + 128, w / 2, h / 2); |
| 762 | }, |
| 763 | 3 => { |
| 764 | pred_plane_delta(blk, coff, w / 2, h / 2, 0); |
| 765 | pred_plane_delta(blk, coff + 128, w / 2, h / 2, 0); |
| 766 | }, |
| 767 | _ => return Err(DecoderError::InvalidData), |
| 768 | }; |
| 769 | Ok(()) |
| 770 | } |
| 771 | fn decode_residue(&mut self, br: &mut BitReader, xpos: usize, ypos: usize, w: usize, h: usize) -> DecoderResult<()> { |
| 772 | const CBP: [u8; 32] = [ |
| 773 | 0x00, 0x08, 0x04, 0x02, 0x01, 0x1F, 0x0F, 0x0A, |
| 774 | 0x05, 0x0C, 0x03, 0x10, 0x0E, 0x0D, 0x0B, 0x07, |
| 775 | 0x09, 0x06, 0x1E, 0x1B, 0x1A, 0x1D, 0x17, 0x15, |
| 776 | 0x18, 0x12, 0x11, 0x1C, 0x14, 0x13, 0x16, 0x19 |
| 777 | ]; |
| 778 | |
| 779 | let mut yoff = xpos + ypos * 256; |
| 780 | let mut coff = CHROMA_OFF + xpos / 2 + ypos / 2 * 256; |
| 781 | let blk = &mut self.buf[self.refs[CUR_BUF]]; |
| 782 | let mut yidx = (xpos / 4 + 1) + NCSTRIDE * (ypos / 4 + 1); |
| 783 | let mut cidx = (xpos / 8 + 1) + NCSTRIDE * (ypos / 8 + 1); |
| 784 | for _y in (0..h).step_by(8) { |
| 785 | for x in (0..w).step_by(8) { |
| 786 | let idx = br.read_gammap()? as usize; |
| 787 | validate!(idx < CBP.len()); |
| 788 | let cbp = CBP[idx]; |
| 789 | for bno in 0..4 { |
| 790 | let cur_yidx = yidx + x / 4 + (bno & 1) + (bno / 2) * NCSTRIDE; |
| 791 | if (cbp & (1 << bno)) != 0 { |
| 792 | let ctx = avg(self.y_ncoeffs[cur_yidx - 1], self.y_ncoeffs[cur_yidx - NCSTRIDE]); |
| 793 | self.y_ncoeffs[cur_yidx] = decode_coeffs(br, &self.codebooks, &self.qmat, ctx, &mut blk[yoff + x + (bno & 1) * 4 + (bno / 2) * 4 * 256..])?; |
| 794 | } else { |
| 795 | self.y_ncoeffs[cur_yidx] = 0; |
| 796 | } |
| 797 | } |
| 798 | if (cbp & 0x10) != 0 { |
| 799 | let ctx = avg(self.c_ncoeffs[cidx + x / 8 - 1], self.c_ncoeffs[cidx + x / 8 - NCSTRIDE]); |
| 800 | let unc = decode_coeffs(br, &self.codebooks, &self.qmat, ctx, &mut blk[coff + x / 2..])?; |
| 801 | let vnc = decode_coeffs(br, &self.codebooks, &self.qmat, ctx, &mut blk[coff + 128 + x / 2..])?; |
| 802 | self.c_ncoeffs[cidx + x / 8] = avg(unc, vnc); |
| 803 | } else { |
| 804 | self.c_ncoeffs[cidx + x / 8] = 0; |
| 805 | } |
| 806 | } |
| 807 | yidx += NCSTRIDE * 2; |
| 808 | cidx += NCSTRIDE; |
| 809 | yoff += 8 * 256; |
| 810 | coff += 4 * 256; |
| 811 | } |
| 812 | Ok(()) |
| 813 | } |
| 814 | fn decode_block(&mut self, br: &mut BitReader, xpos: usize, ypos: usize, w: usize, h: usize) -> DecoderResult<()> { |
| 815 | let mode = br.read_gammap()?; |
| 816 | let min_dim = w.min(h); |
| 817 | let large_block = min_dim >= 8; |
| 818 | if mode >= 16 && !large_block { |
| 819 | return Err(DecoderError::InvalidData); |
| 820 | } |
| 821 | match mode { |
| 822 | 0 if w > 2 => { |
| 823 | let hw = w / 2; |
| 824 | self.decode_block(br, xpos, ypos, hw, h)?; |
| 825 | self.decode_block(br, xpos + hw, ypos, hw, h)?; |
| 826 | }, |
| 827 | 1 => { self.copy_block(xpos, ypos, w, h, 0)?; }, |
| 828 | 2 if h > 2 => { |
| 829 | let hh = h / 2; |
| 830 | self.decode_block(br, xpos, ypos, w, hh)?; |
| 831 | self.decode_block(br, xpos, ypos + hh, w, hh)?; |
| 832 | }, |
| 833 | 3 => { self.do_mc_bias(br, xpos, ypos, w, h)?; }, |
| 834 | 4 | 5 | 6 => { |
| 835 | let ref_id = (mode - 4) as usize; |
| 836 | self.do_mc(br, xpos, ypos, w, h, ref_id)?; |
| 837 | }, |
| 838 | 7 => { self.pred_plane(br, xpos, ypos, w, h)?; }, |
| 839 | 8 if large_block => { |
| 840 | let hw = w / 2; |
| 841 | self.decode_block(br, xpos, ypos, hw, h)?; |
| 842 | self.decode_block(br, xpos + hw, ypos, hw, h)?; |
| 843 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 844 | }, |
| 845 | 9 => { self.copy_block(xpos, ypos, w, h, 1)?; }, |
| 846 | 10 if large_block => { |
| 847 | self.do_mc_bias(br, xpos, ypos, w, h)?; |
| 848 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 849 | }, |
| 850 | 11 => { |
| 851 | if min_dim >= 4 { |
| 852 | self.intra_pred(br, xpos, ypos, w, h)?; |
| 853 | } |
| 854 | }, |
| 855 | 12 if large_block => { |
| 856 | self.copy_block(xpos, ypos, w, h, 0)?; |
| 857 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 858 | }, |
| 859 | 13 if large_block => { |
| 860 | let hh = h / 2; |
| 861 | self.decode_block(br, xpos, ypos, w, hh)?; |
| 862 | self.decode_block(br, xpos, ypos + hh, w, hh)?; |
| 863 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 864 | }, |
| 865 | 14 => { self.copy_block(xpos, ypos, w, h, 2)?; }, |
| 866 | 15 => { |
| 867 | if min_dim >= 4 { |
| 868 | self.intra_pred4x4(br, xpos, ypos, w, h)?; |
| 869 | } |
| 870 | }, |
| 871 | 16 | 17 | 18 => { |
| 872 | let ref_id = (mode - 16) as usize; |
| 873 | self.do_mc(br, xpos, ypos, w, h, ref_id)?; |
| 874 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 875 | }, |
| 876 | 19 => { |
| 877 | self.intra_pred4x4(br, xpos, ypos, w, h)?; |
| 878 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 879 | }, |
| 880 | 20 => { |
| 881 | self.copy_block(xpos, ypos, w, h, 1)?; |
| 882 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 883 | }, |
| 884 | 21 => { |
| 885 | self.copy_block(xpos, ypos, w, h, 2)?; |
| 886 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 887 | }, |
| 888 | 22 => { |
| 889 | self.intra_pred(br, xpos, ypos, w, h)?; |
| 890 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 891 | }, |
| 892 | 23 => { |
| 893 | self.pred_plane(br, xpos, ypos, w, h)?; |
| 894 | self.decode_residue(br, xpos, ypos, w, h)?; |
| 895 | }, |
| 896 | _ => return Err(DecoderError::InvalidData), |
| 897 | }; |
| 898 | Ok(()) |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | const QUANTISERS: [u8; 52] = [ |
| 903 | 10, 13, 10, 13, 13, 16, 13, 16, 11, 14, 11, 14, 14, 18, 14, 18, |
| 904 | 13, 16, 13, 16, 16, 20, 16, 20, 14, 18, 14, 18, 18, 23, 18, 23, |
| 905 | 16, 20, 16, 20, 20, 25, 20, 25, 18, 23, 18, 23, 23, 29, 23, 29, |
| 906 | 20, 14, 12, 10 |
| 907 | ]; |
| 908 | |
| 909 | impl NADecoder for VXVideoDecoder { |
| 910 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { |
| 911 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { |
| 912 | self.width = vinfo.get_width(); |
| 913 | self.height = vinfo.get_height(); |
| 914 | validate!(self.width <= 256 && self.height <= 256); |
| 915 | |
| 916 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(self.width, self.height, false, YUV420_FORMAT)); |
| 917 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref(); |
| 918 | |
| 919 | if let Some(edata) = info.get_extradata() { |
| 920 | validate!(edata.len() > 0); |
| 921 | let fps = edata[0] as usize; |
| 922 | validate!(fps <= 60); |
| 923 | let base = &QUANTISERS[(fps % 6) * 8..][..8]; |
| 924 | let scale = fps / 6; |
| 925 | for (dq, iq) in self.qmat.iter_mut().zip(base.iter()) { |
| 926 | *dq = i32::from(*iq) << scale; |
| 927 | } |
| 928 | } else { |
| 929 | return Err(DecoderError::InvalidData); |
| 930 | } |
| 931 | |
| 932 | for frm in self.buf.iter_mut() { |
| 933 | let (ybuf, cbuf) = frm.split_at_mut(CHROMA_OFF); |
| 934 | for el in ybuf.iter_mut() { |
| 935 | *el = 0; |
| 936 | } |
| 937 | for el in cbuf.iter_mut() { |
| 938 | *el = 0x80; |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | Ok(()) |
| 943 | } else { |
| 944 | Err(DecoderError::InvalidData) |
| 945 | } |
| 946 | } |
| 947 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { |
| 948 | let src = pkt.get_buffer(); |
| 949 | validate!(src.len() > 0); |
| 950 | |
| 951 | let mut br = BitReader::new(&src[0..], BitReaderMode::LE16MSB); |
| 952 | |
| 953 | self.y_ncoeffs = [0; NCSTRIDE * (256 / 4 + 1)]; |
| 954 | self.c_ncoeffs = [0; NCSTRIDE * (256 / 8 + 1)]; |
| 955 | self.mvs = [MV::default(); 16 * 16]; |
| 956 | self.decode_frame(&mut br)?; |
| 957 | |
| 958 | let bufinfo = alloc_video_buffer(self.info.get_properties().get_video_info().unwrap(), 4)?; |
| 959 | let mut buf = bufinfo.get_vbuf().unwrap(); |
| 960 | let ystride = buf.get_stride(0); |
| 961 | let ustride = buf.get_stride(1); |
| 962 | let vstride = buf.get_stride(2); |
| 963 | let yoff = buf.get_offset(0); |
| 964 | let uoff = buf.get_offset(1); |
| 965 | let voff = buf.get_offset(2); |
| 966 | let data = buf.get_data_mut().unwrap(); |
| 967 | let cur = self.refs[CUR_BUF]; |
| 968 | for (sline, dline) in self.buf[cur][0..].chunks(256).take(self.height).zip(data[yoff..].chunks_mut(ystride)) { |
| 969 | dline[..self.width].copy_from_slice(&sline[..self.width]); |
| 970 | } |
| 971 | for (sline, dline) in self.buf[cur][CHROMA_OFF..].chunks(256).take(self.height / 2).zip(data[uoff..].chunks_mut(ustride)) { |
| 972 | dline[..self.width / 2].copy_from_slice(&sline[..self.width / 2]); |
| 973 | } |
| 974 | for (sline, dline) in self.buf[cur][CHROMA_OFF + 128..].chunks(256).take(self.height / 2).zip(data[voff..].chunks_mut(vstride)) { |
| 975 | dline[..self.width / 2].copy_from_slice(&sline[..self.width / 2]); |
| 976 | } |
| 977 | let videobuf = NABufferType::Video(buf); |
| 978 | self.update_refs(); |
| 979 | |
| 980 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), videobuf); |
| 981 | let is_intra = pkt.get_pts() == Some(0); |
| 982 | frm.set_keyframe(is_intra); |
| 983 | frm.set_frame_type(if is_intra { FrameType::I } else { FrameType::P }); |
| 984 | Ok(frm.into_ref()) |
| 985 | } |
| 986 | fn flush(&mut self) { |
| 987 | } |
| 988 | } |
| 989 | |
| 990 | impl NAOptionHandler for VXVideoDecoder { |
| 991 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 992 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 993 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 994 | } |
| 995 | |
| 996 | |
| 997 | pub fn get_decoder_video() -> Box<dyn NADecoder + Send> { |
| 998 | Box::new(VXVideoDecoder::new()) |
| 999 | } |
| 1000 | |
| 1001 | |
| 1002 | struct AudioState { |
| 1003 | lpc0_idx: usize, |
| 1004 | lpc1_idx: usize, |
| 1005 | lpc2_idx: usize, |
| 1006 | scale: i32, |
| 1007 | frame_mode: usize, |
| 1008 | cur_filt: [i32; 8], |
| 1009 | |
| 1010 | lpc0_cb: [[i16; 8]; 64], |
| 1011 | lpc1_cb: [[i16; 8]; 64], |
| 1012 | lpc2_cb: [[i16; 8]; 64], |
| 1013 | decays: [i32; 8], |
| 1014 | base_filt: [i32; 8], |
| 1015 | base_scale: i32, |
| 1016 | } |
| 1017 | |
| 1018 | impl AudioState { |
| 1019 | fn new() -> Self { |
| 1020 | Self { |
| 1021 | lpc0_idx: 0, |
| 1022 | lpc1_idx: 0, |
| 1023 | lpc2_idx: 0, |
| 1024 | scale: 0, |
| 1025 | frame_mode: 0, |
| 1026 | cur_filt: [0; 8], |
| 1027 | |
| 1028 | lpc0_cb: [[0; 8]; 64], |
| 1029 | lpc1_cb: [[0; 8]; 64], |
| 1030 | lpc2_cb: [[0; 8]; 64], |
| 1031 | decays: [0; 8], |
| 1032 | base_filt: [0; 8], |
| 1033 | base_scale: 0, |
| 1034 | } |
| 1035 | } |
| 1036 | fn read_initial_params(&mut self, br: &mut ByteReader) -> DecoderResult<()> { |
| 1037 | for entry in self.lpc0_cb.iter_mut() { |
| 1038 | for el in entry.iter_mut() { |
| 1039 | *el = br.read_u16le()? as i16; |
| 1040 | } |
| 1041 | } |
| 1042 | for entry in self.lpc1_cb.iter_mut() { |
| 1043 | for el in entry.iter_mut() { |
| 1044 | *el = br.read_u16le()? as i16; |
| 1045 | } |
| 1046 | } |
| 1047 | for entry in self.lpc2_cb.iter_mut() { |
| 1048 | for el in entry.iter_mut() { |
| 1049 | *el = br.read_u16le()? as i16; |
| 1050 | } |
| 1051 | } |
| 1052 | for el in self.decays.iter_mut() { |
| 1053 | *el = i32::from(br.read_u16le()? as i16); |
| 1054 | } |
| 1055 | for el in self.base_filt.iter_mut() { |
| 1056 | *el = br.read_u32le()? as i32; |
| 1057 | } |
| 1058 | self.base_scale = br.read_u32le()? as i32; |
| 1059 | Ok(()) |
| 1060 | } |
| 1061 | fn unpack_data(&mut self, br: &mut ByteReader, val: u16, dst: &mut [i32]) -> DecoderResult<()> { |
| 1062 | self.lpc0_idx = (val & 0x3F) as usize; |
| 1063 | self.scale = (self.decays[((val >> 6) & 7) as usize] * self.scale) >> 13; |
| 1064 | let val1 = br.read_u16le()?; |
| 1065 | self.lpc1_idx = ((val1 >> 6) & 0x3F) as usize; |
| 1066 | self.lpc2_idx = (val1 & 0x3F) as usize; |
| 1067 | self.frame_mode = ((val1 >> 12) & 3) as usize; |
| 1068 | let mut idx = (val1 >> 14) as usize; |
| 1069 | if self.frame_mode == 0 { |
| 1070 | let mut tail = 0; |
| 1071 | for _ in 0..8 { |
| 1072 | let val = br.read_u16le()?; |
| 1073 | for i in 0..5 { |
| 1074 | let add = i32::from((val >> (13 - i * 3)) & 7); |
| 1075 | dst[idx] += self.scale * (add * 2 - 7); |
| 1076 | idx += 3; |
| 1077 | } |
| 1078 | tail = tail * 2 + (val & 1); |
| 1079 | } |
| 1080 | let add = i32::from((tail >> 5) & 7); |
| 1081 | dst[idx] += self.scale * (add * 2 - 7); |
| 1082 | idx += 3; |
| 1083 | let add = i32::from((tail >> 2) & 7); |
| 1084 | dst[idx] += self.scale * (add * 2 - 7); |
| 1085 | } else { |
| 1086 | let (len, step) = match self.frame_mode { |
| 1087 | 1 => (5, 3), |
| 1088 | 2 => (4, 4), |
| 1089 | 3 => (3, 5), |
| 1090 | _ => unreachable!(), |
| 1091 | }; |
| 1092 | idx += 128; |
| 1093 | for _ in 0..len { |
| 1094 | let val = br.read_u16le()?; |
| 1095 | for i in 0..8 { |
| 1096 | let add = i32::from((val >> (14 - i * 2)) & 3); |
| 1097 | dst[idx] += self.scale * (add * 2 - 3); |
| 1098 | idx += step; |
| 1099 | } |
| 1100 | } |
| 1101 | } |
| 1102 | Ok(()) |
| 1103 | } |
| 1104 | fn update_intra(&mut self) { |
| 1105 | self.cur_filt = self.base_filt; |
| 1106 | for i in 0..8 { |
| 1107 | self.cur_filt[i] += i32::from(self.lpc0_cb[self.lpc0_idx][i]); |
| 1108 | self.cur_filt[i] += i32::from(self.lpc1_cb[self.lpc1_idx][i]); |
| 1109 | self.cur_filt[i] += i32::from(self.lpc2_cb[self.lpc2_idx][i]); |
| 1110 | } |
| 1111 | } |
| 1112 | fn update_inter(&mut self) { |
| 1113 | for i in 0..8 { |
| 1114 | self.cur_filt[i] += i32::from(self.lpc0_cb[self.lpc0_idx][i]); |
| 1115 | self.cur_filt[i] += i32::from(self.lpc1_cb[self.lpc1_idx][i]); |
| 1116 | self.cur_filt[i] += i32::from(self.lpc2_cb[self.lpc2_idx][i]); |
| 1117 | } |
| 1118 | } |
| 1119 | } |
| 1120 | |
| 1121 | fn apply_lpc(dst: &mut [i32], src: &[i32], hist: &mut [i32], filt: &[i32; 8]) { |
| 1122 | let mut hidx = 0; |
| 1123 | for (out, src) in dst.iter_mut().zip(src.iter()) { |
| 1124 | let mut sum = *src << 14; |
| 1125 | for i in 0..8 { |
| 1126 | sum += hist[(hidx + i) & 7] * filt[i]; |
| 1127 | } |
| 1128 | let samp = sum >> 14; |
| 1129 | *out = samp; |
| 1130 | hist[hidx & 7] = samp; |
| 1131 | hidx += 1; |
| 1132 | } |
| 1133 | } |
| 1134 | |
| 1135 | struct VXAudioDecoder { |
| 1136 | ainfo: NAAudioInfo, |
| 1137 | info: Arc<NACodecInfo>, |
| 1138 | chmap: NAChannelMap, |
| 1139 | buf: [i32; 256 * 2], |
| 1140 | flip_buf: bool, |
| 1141 | state: AudioState, |
| 1142 | lpc_hist: [i32; 8], |
| 1143 | lpc_filt: [i32; 8], |
| 1144 | lpc_filt1: [i32; 8], |
| 1145 | } |
| 1146 | |
| 1147 | impl VXAudioDecoder { |
| 1148 | fn new() -> Self { |
| 1149 | Self { |
| 1150 | ainfo: NAAudioInfo::new(0, 1, SND_S16P_FORMAT, 0), |
| 1151 | info: NACodecInfo::new_dummy(), |
| 1152 | chmap: NAChannelMap::new(), |
| 1153 | buf: [0; 256 * 2], |
| 1154 | flip_buf: true, |
| 1155 | state: AudioState::new(), |
| 1156 | lpc_hist: [0; 8], |
| 1157 | lpc_filt: [0; 8], |
| 1158 | lpc_filt1: [0; 8], |
| 1159 | } |
| 1160 | } |
| 1161 | fn decode_inter(&mut self, br: &mut ByteReader, mode: u16, val: u16) -> DecoderResult<()> { |
| 1162 | let (mut cur_buf, mut prev_buf) = self.buf.split_at_mut(256); |
| 1163 | if self.flip_buf { |
| 1164 | std::mem::swap(&mut cur_buf, &mut prev_buf); |
| 1165 | } |
| 1166 | cur_buf[0..128].copy_from_slice(&prev_buf[128..]); |
| 1167 | if mode == 0x7E { |
| 1168 | for el in cur_buf[128..].iter_mut() { |
| 1169 | *el = 0; |
| 1170 | } |
| 1171 | } else { |
| 1172 | let src = &prev_buf[127 - (mode as usize)..]; |
| 1173 | let dst = &mut cur_buf[128..]; |
| 1174 | for i in 0..7 { |
| 1175 | dst[i] = (src[i] * ((i + 1) as i32)) >> 4; |
| 1176 | } |
| 1177 | for i in 7..121 { |
| 1178 | dst[i] = src[i] >> 1; |
| 1179 | } |
| 1180 | for i in 121..128 { |
| 1181 | dst[i] = (src[i] * ((128 - i) as i32)) >> 4; |
| 1182 | } |
| 1183 | } |
| 1184 | |
| 1185 | self.state.unpack_data(br, val, prev_buf )?; |
| 1186 | self.state.update_inter(); |
| 1187 | |
| 1188 | let (cfilt, pfilt) = if !self.flip_buf { |
| 1189 | (&mut self.lpc_filt, &mut self.lpc_filt1) |
| 1190 | } else { |
| 1191 | (&mut self.lpc_filt1, &mut self.lpc_filt) |
| 1192 | }; |
| 1193 | *cfilt = self.state.cur_filt; |
| 1194 | let mut f0 = [0; 8]; |
| 1195 | let mut f1 = [0; 8]; |
| 1196 | let mut f2 = [0; 8]; |
| 1197 | for i in 0..8 { |
| 1198 | f1[i] = (pfilt[i] + cfilt[i]) >> 1; |
| 1199 | f0[i] = (pfilt[i] + f1 [i]) >> 1; |
| 1200 | f2[i] = (f1 [i] + cfilt[i]) >> 1; |
| 1201 | } |
| 1202 | apply_lpc(&mut cur_buf[ 0..][..32], &prev_buf[128..], &mut self.lpc_hist, &f0); |
| 1203 | apply_lpc(&mut cur_buf[32..][..32], &prev_buf[128 + 32..], &mut self.lpc_hist, &f1); |
| 1204 | apply_lpc(&mut cur_buf[64..][..32], &prev_buf[128 + 64..], &mut self.lpc_hist, &f2); |
| 1205 | apply_lpc(&mut cur_buf[96..][..32], &prev_buf[128 + 96..], &mut self.lpc_hist, &cfilt); |
| 1206 | Ok(()) |
| 1207 | } |
| 1208 | fn decode_intra(&mut self, br: &mut ByteReader, val: u16) -> DecoderResult<()> { |
| 1209 | self.state.scale = self.state.base_scale; |
| 1210 | self.lpc_hist = [0; 8]; |
| 1211 | self.flip_buf = true; |
| 1212 | |
| 1213 | let (mut cur_buf, mut prev_buf) = self.buf.split_at_mut(256); |
| 1214 | if self.flip_buf { |
| 1215 | std::mem::swap(&mut cur_buf, &mut prev_buf); |
| 1216 | } |
| 1217 | for el in cur_buf[128..].iter_mut() { |
| 1218 | *el = 0; |
| 1219 | } |
| 1220 | self.state.unpack_data(br, val, prev_buf)?; |
| 1221 | self.state.update_intra(); |
| 1222 | |
| 1223 | self.lpc_filt = self.state.cur_filt; |
| 1224 | apply_lpc(&mut cur_buf[..128], &prev_buf[128..], &mut self.lpc_hist, &self.lpc_filt); |
| 1225 | Ok(()) |
| 1226 | } |
| 1227 | fn output(&mut self, dst: &mut [i16]) { |
| 1228 | let src = if self.flip_buf { &self.buf[256..][..128] } else { &self.buf[..128] }; |
| 1229 | for (src, dst) in src.iter().zip(dst.iter_mut()) { |
| 1230 | *dst = (*src).max(-0x8000).min(0x7FFF) as i16; |
| 1231 | } |
| 1232 | self.flip_buf = !self.flip_buf; |
| 1233 | } |
| 1234 | } |
| 1235 | |
| 1236 | impl NADecoder for VXAudioDecoder { |
| 1237 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { |
| 1238 | if let NACodecTypeInfo::Audio(ainfo) = info.get_properties() { |
| 1239 | if let Some(edata) = info.get_extradata() { |
| 1240 | validate!(edata.len() >= 3124); |
| 1241 | let mut mr = MemoryReader::new_read(edata.as_slice()); |
| 1242 | let mut br = ByteReader::new(&mut mr); |
| 1243 | self.state.read_initial_params(&mut br)?; |
| 1244 | } else { |
| 1245 | return Err(DecoderError::InvalidData); |
| 1246 | } |
| 1247 | self.ainfo = NAAudioInfo::new(ainfo.get_sample_rate(), 1, SND_S16_FORMAT, 1); |
| 1248 | self.info = info.replace_info(NACodecTypeInfo::Audio(self.ainfo)); |
| 1249 | self.chmap = NAChannelMap::from_str("C").unwrap(); |
| 1250 | Ok(()) |
| 1251 | } else { |
| 1252 | Err(DecoderError::InvalidData) |
| 1253 | } |
| 1254 | } |
| 1255 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { |
| 1256 | const SUBFRAME_LEN: [usize; 4] = [20, 14, 12, 10]; |
| 1257 | |
| 1258 | let info = pkt.get_stream().get_info(); |
| 1259 | if let NACodecTypeInfo::Audio(_) = info.get_properties() { |
| 1260 | let pktbuf = pkt.get_buffer(); |
| 1261 | validate!(pktbuf.len() >= 10); |
| 1262 | |
| 1263 | let mut mr = MemoryReader::new_read(&pktbuf); |
| 1264 | let mut br = ByteReader::new(&mut mr); |
| 1265 | let mut nblocks = 0; |
| 1266 | while br.left() > 4 { |
| 1267 | br.read_skip(2)?; |
| 1268 | let val = br.read_u16le()?; |
| 1269 | nblocks += 1; |
| 1270 | let sf_len = SUBFRAME_LEN[((val >> 12) & 3) as usize]; |
| 1271 | if br.left() <= sf_len as i64 { |
| 1272 | break; |
| 1273 | } |
| 1274 | br.read_skip(sf_len - 4)?; |
| 1275 | } |
| 1276 | |
| 1277 | let samples = 128 * nblocks; |
| 1278 | let abuf = alloc_audio_buffer(self.ainfo, samples, self.chmap.clone())?; |
| 1279 | let mut adata = abuf.get_abuf_i16().unwrap(); |
| 1280 | let dst = adata.get_data_mut().unwrap(); |
| 1281 | |
| 1282 | let mut mr = MemoryReader::new_read(&pktbuf); |
| 1283 | let mut br = ByteReader::new(&mut mr); |
| 1284 | |
| 1285 | let mut blk_no = 0usize; |
| 1286 | while br.left() > 0 { |
| 1287 | let val = br.read_u16le()?; |
| 1288 | let mode = val >> 9; |
| 1289 | if mode == 0x7F { |
| 1290 | self.decode_intra(&mut br, val)?; |
| 1291 | } else { |
| 1292 | self.decode_inter(&mut br, val & 0x1FF, mode)?; |
| 1293 | } |
| 1294 | self.output(&mut dst[blk_no * 128..]); |
| 1295 | blk_no += 1; |
| 1296 | } |
| 1297 | |
| 1298 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), abuf); |
| 1299 | frm.set_duration(Some(samples as u64)); |
| 1300 | frm.set_keyframe(true); |
| 1301 | Ok(frm.into_ref()) |
| 1302 | } else { |
| 1303 | Err(DecoderError::InvalidData) |
| 1304 | } |
| 1305 | } |
| 1306 | fn flush(&mut self) { |
| 1307 | } |
| 1308 | } |
| 1309 | |
| 1310 | |
| 1311 | impl NAOptionHandler for VXAudioDecoder { |
| 1312 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 1313 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 1314 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 1315 | } |
| 1316 | |
| 1317 | |
| 1318 | pub fn get_decoder_audio() -> Box<dyn NADecoder + Send> { |
| 1319 | Box::new(VXAudioDecoder::new()) |
| 1320 | } |
| 1321 | |
| 1322 | #[cfg(test)] |
| 1323 | mod test { |
| 1324 | use nihav_core::codecs::RegisteredDecoders; |
| 1325 | use nihav_core::demuxers::RegisteredDemuxers; |
| 1326 | use nihav_codec_support::test::dec_video::*; |
| 1327 | use crate::game_register_all_decoders; |
| 1328 | use crate::game_register_all_demuxers; |
| 1329 | #[test] |
| 1330 | fn test_vx_video() { |
| 1331 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 1332 | game_register_all_demuxers(&mut dmx_reg); |
| 1333 | let mut dec_reg = RegisteredDecoders::new(); |
| 1334 | game_register_all_decoders(&mut dec_reg); |
| 1335 | |
| 1336 | //XXX: the current version does not reconstruct videos perfectly yet |
| 1337 | test_decoding("vx", "vxvideo", "assets/Game/bioware.vx", Some(31), &dmx_reg, &dec_reg, |
| 1338 | ExpectedTestResult::MD5Frames(vec![ |
| 1339 | [0x33de14fa, 0x00948eb7, 0x028141d7, 0x1d07abd6], |
| 1340 | [0x07442eef, 0x36ec00c1, 0x3d9556c6, 0x6ddbcd46], |
| 1341 | [0xb5b48d03, 0x0063faaf, 0xfa64de6f, 0xbe5d916b], |
| 1342 | [0xb760b777, 0xe7159f5e, 0x352b7326, 0xd21e3d14], |
| 1343 | [0xee1ccadc, 0xd2b54891, 0xb5f6f31a, 0x73d7e869], |
| 1344 | [0xcd234bd9, 0xad3d8f3e, 0xdb405b8c, 0x4faa738b], |
| 1345 | [0x615957be, 0x8a20b367, 0xadc031af, 0x886311cc], |
| 1346 | [0xade60b19, 0x2560fffa, 0x8bafff67, 0x698485ad], |
| 1347 | [0x131b874c, 0x4bb41da5, 0xc0f52bf2, 0x626d6e66], |
| 1348 | [0x1dc1bb4b, 0xc3552467, 0xa5598162, 0xe6220dde], |
| 1349 | [0xa1e27935, 0xd01c18c4, 0x6e6e1be7, 0xc42b021c], |
| 1350 | [0x28876ccb, 0xfaca435f, 0xe8cf81d7, 0x8f103d89], |
| 1351 | [0xab610d4d, 0x0bf5b213, 0x28749eda, 0xcbf5c34c], |
| 1352 | [0x48a452f8, 0x544b8a4d, 0x0a031be4, 0xe60b6f59], |
| 1353 | [0xe6f88898, 0x46171e3b, 0xf39e2605, 0x3d16e75a], |
| 1354 | [0xe1461669, 0x3dd4daa6, 0x1e82b9e7, 0x49214174], |
| 1355 | [0x39d89d57, 0x5c0bf9ba, 0xf254cdc4, 0x8c1b9bb9], |
| 1356 | [0x81f1a684, 0xd2a0bc8a, 0xe1355afa, 0xbe33e476], |
| 1357 | [0x571b0722, 0x25643452, 0x509ed72d, 0x1d55214e], |
| 1358 | [0xc799fa72, 0xed2bc13d, 0xa9be1b55, 0xece4d7f0], |
| 1359 | [0x0eae7358, 0x87d80481, 0xcac84bf9, 0x76bee392], |
| 1360 | [0xf0e6fb26, 0x95a9a362, 0x474edaa2, 0xd8d0b5fc], |
| 1361 | [0xee57bff2, 0x490b9ffc, 0x6189e2d4, 0xb1b97277], |
| 1362 | [0xa5f83723, 0xaa807527, 0x5c722b29, 0x3ea10cfc], |
| 1363 | [0x83562752, 0x27021714, 0x5b81f808, 0x192fa17c], |
| 1364 | [0x50f5ab82, 0x01a482b2, 0xa44b7525, 0xac4d1916], |
| 1365 | [0x8cf1fffd, 0xf09364c5, 0x57847078, 0x1a811a61], |
| 1366 | [0x3d8e4221, 0xe69532b1, 0x7bd4fa20, 0x78dc0676], |
| 1367 | [0x7b6432a5, 0x01ee9819, 0xfd0fd634, 0x96fd612b], |
| 1368 | [0xb0e0d469, 0xc651dd3a, 0xf2fa8e9b, 0xc58d55be], |
| 1369 | [0xa9d7fa17, 0xaf2d05f8, 0xd307d0c1, 0xd83dc57a], |
| 1370 | [0x14e644a7, 0xd8d9e459, 0x0d81e68c, 0xe57b9b81]])); |
| 1371 | } |
| 1372 | } |
| 1373 | |
| 1374 | const NC_MAP: [usize; 8] = [ 0, 0, 1, 1, 2, 2, 2, 2 ]; |
| 1375 | const NC_BITS: [[u16; 68]; 3] = [ |
| 1376 | [ |
| 1377 | 0x0001, 0x0000, 0x0000, 0x0000, 0x0005, 0x0001, 0x0000, 0x0000, |
| 1378 | 0x0007, 0x0004, 0x0001, 0x0000, 0x0007, 0x0006, 0x0005, 0x0003, |
| 1379 | 0x0007, 0x0006, 0x0005, 0x0003, 0x0007, 0x0006, 0x0005, 0x0004, |
| 1380 | 0x000F, 0x0006, 0x0005, 0x0004, 0x000B, 0x000E, 0x0005, 0x0004, |
| 1381 | 0x0008, 0x000A, 0x000D, 0x0004, 0x000F, 0x000E, 0x0009, 0x0004, |
| 1382 | 0x000B, 0x000A, 0x000D, 0x000C, 0x000F, 0x000E, 0x0009, 0x000C, |
| 1383 | 0x000B, 0x000A, 0x000D, 0x0008, 0x000F, 0x0001, 0x0009, 0x000C, |
| 1384 | 0x000B, 0x000E, 0x000D, 0x0008, 0x0007, 0x000A, 0x0009, 0x000C, |
| 1385 | 0x0004, 0x0006, 0x0005, 0x0008 |
| 1386 | ], [ |
| 1387 | 0x0003, 0x0000, 0x0000, 0x0000, 0x000B, 0x0002, 0x0000, 0x0000, |
| 1388 | 0x0007, 0x0007, 0x0003, 0x0000, 0x0007, 0x000A, 0x0009, 0x0005, |
| 1389 | 0x0007, 0x0006, 0x0005, 0x0004, 0x0004, 0x0006, 0x0005, 0x0006, |
| 1390 | 0x0007, 0x0006, 0x0005, 0x0008, 0x000F, 0x0006, 0x0005, 0x0004, |
| 1391 | 0x000B, 0x000E, 0x000D, 0x0004, 0x000F, 0x000A, 0x0009, 0x0004, |
| 1392 | 0x000B, 0x000E, 0x000D, 0x000C, 0x0008, 0x000A, 0x0009, 0x0008, |
| 1393 | 0x000F, 0x000E, 0x000D, 0x000C, 0x000B, 0x000A, 0x0009, 0x000C, |
| 1394 | 0x0007, 0x000B, 0x0006, 0x0008, 0x0009, 0x0008, 0x000A, 0x0001, |
| 1395 | 0x0007, 0x0006, 0x0005, 0x0004 |
| 1396 | ], [ |
| 1397 | 0x000F, 0x0000, 0x0000, 0x0000, 0x000F, 0x000E, 0x0000, 0x0000, |
| 1398 | 0x000B, 0x000F, 0x000D, 0x0000, 0x0008, 0x000C, 0x000E, 0x000C, |
| 1399 | 0x000F, 0x000A, 0x000B, 0x000B, 0x000B, 0x0008, 0x0009, 0x000A, |
| 1400 | 0x0009, 0x000E, 0x000D, 0x0009, 0x0008, 0x000A, 0x0009, 0x0008, |
| 1401 | 0x000F, 0x000E, 0x000D, 0x000D, 0x000B, 0x000E, 0x000A, 0x000C, |
| 1402 | 0x000F, 0x000A, 0x000D, 0x000C, 0x000B, 0x000E, 0x0009, 0x000C, |
| 1403 | 0x0008, 0x000A, 0x000D, 0x0008, 0x000D, 0x0007, 0x0009, 0x000C, |
| 1404 | 0x0009, 0x000C, 0x000B, 0x000A, 0x0005, 0x0008, 0x0007, 0x0006, |
| 1405 | 0x0001, 0x0004, 0x0003, 0x0002 |
| 1406 | ] |
| 1407 | ]; |
| 1408 | const NC_LENS: [[u8; 68]; 3] = [ |
| 1409 | [ |
| 1410 | 1, 0, 0, 0, 6, 2, 0, 0, |
| 1411 | 8, 6, 3, 0, 9, 8, 7, 5, |
| 1412 | 10, 9, 8, 6, 11, 10, 9, 7, |
| 1413 | 13, 11, 10, 8, 13, 13, 11, 9, |
| 1414 | 13, 13, 13, 10, 14, 14, 13, 11, |
| 1415 | 14, 14, 14, 13, 15, 15, 14, 14, |
| 1416 | 15, 15, 15, 14, 16, 15, 15, 15, |
| 1417 | 16, 16, 16, 15, 16, 16, 16, 16, |
| 1418 | 16, 16, 16, 16 |
| 1419 | ], [ |
| 1420 | 2, 0, 0, 0, 6, 2, 0, 0, |
| 1421 | 6, 5, 3, 0, 7, 6, 6, 4, |
| 1422 | 8, 6, 6, 4, 8, 7, 7, 5, |
| 1423 | 9, 8, 8, 6, 11, 9, 9, 6, |
| 1424 | 11, 11, 11, 7, 12, 11, 11, 9, |
| 1425 | 12, 12, 12, 11, 12, 12, 12, 11, |
| 1426 | 13, 13, 13, 12, 13, 13, 13, 13, |
| 1427 | 13, 14, 13, 13, 14, 14, 14, 13, |
| 1428 | 14, 14, 14, 14 |
| 1429 | ], [ |
| 1430 | 4, 0, 0, 0, 6, 4, 0, 0, |
| 1431 | 6, 5, 4, 0, 6, 5, 5, 4, |
| 1432 | 7, 5, 5, 4, 7, 5, 5, 4, |
| 1433 | 7, 6, 6, 4, 7, 6, 6, 4, |
| 1434 | 8, 7, 7, 5, 8, 8, 7, 6, |
| 1435 | 9, 8, 8, 7, 9, 9, 8, 8, |
| 1436 | 9, 9, 9, 8, 10, 9, 9, 9, |
| 1437 | 10, 10, 10, 10, 10, 10, 10, 10, |
| 1438 | 10, 10, 10, 10 |
| 1439 | ] |
| 1440 | ]; |
| 1441 | |
| 1442 | const NUM_ZERO_BITS: [[u8; 16]; 15] = [ |
| 1443 | [ |
| 1444 | 0x01, 0x03, 0x02, 0x03, 0x02, 0x03, 0x02, 0x03, 0x02, 0x03, 0x02, 0x03, 0x02, 0x03, 0x02, 0x01 |
| 1445 | ], [ |
| 1446 | 0x07, 0x06, 0x05, 0x04, 0x03, 0x05, 0x04, 0x03, 0x02, 0x03, 0x02, 0x03, 0x02, 0x01, 0x00, 0x00 |
| 1447 | ], [ |
| 1448 | 0x05, 0x07, 0x06, 0x05, 0x04, 0x03, 0x04, 0x03, 0x02, 0x03, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00 |
| 1449 | ], [ |
| 1450 | 0x03, 0x07, 0x05, 0x04, 0x06, 0x05, 0x04, 0x03, 0x03, 0x02, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00 |
| 1451 | ], [ |
| 1452 | 0x05, 0x04, 0x03, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1453 | ], [ |
| 1454 | 0x01, 0x01, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1455 | ], [ |
| 1456 | 0x01, 0x01, 0x05, 0x04, 0x03, 0x03, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1457 | ], [ |
| 1458 | 0x01, 0x01, 0x01, 0x03, 0x03, 0x02, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1459 | ], [ |
| 1460 | 0x01, 0x00, 0x01, 0x03, 0x02, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1461 | ], [ |
| 1462 | 0x01, 0x00, 0x01, 0x03, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1463 | ], [ |
| 1464 | 0x00, 0x01, 0x01, 0x02, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1465 | ], [ |
| 1466 | 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1467 | ], [ |
| 1468 | 0x00, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1469 | ], [ |
| 1470 | 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1471 | ], [ |
| 1472 | 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 1473 | ] |
| 1474 | ]; |
| 1475 | const NUM_ZERO_LENS: [[u8; 16]; 15] = [ |
| 1476 | [ 1, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 9 ], |
| 1477 | [ 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 6, 6, 6, 0 ], |
| 1478 | [ 4, 3, 3, 3, 4, 4, 3, 3, 4, 5, 5, 6, 5, 6, 0, 0 ], |
| 1479 | [ 5, 3, 4, 4, 3, 3, 3, 4, 3, 4, 5, 5, 5, 0, 0, 0 ], |
| 1480 | [ 4, 4, 4, 3, 3, 3, 3, 3, 4, 5, 4, 5, 0, 0, 0, 0 ], |
| 1481 | [ 6, 5, 3, 3, 3, 3, 3, 3, 4, 3, 6, 0, 0, 0, 0, 0 ], |
| 1482 | [ 6, 5, 3, 3, 3, 2, 3, 4, 3, 6, 0, 0, 0, 0, 0, 0 ], |
| 1483 | [ 6, 4, 5, 3, 2, 2, 3, 3, 6, 0, 0, 0, 0, 0, 0, 0 ], |
| 1484 | [ 6, 6, 4, 2, 2, 3, 2, 5, 0, 0, 0, 0, 0, 0, 0, 0 ], |
| 1485 | [ 5, 5, 3, 2, 2, 2, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], |
| 1486 | [ 4, 4, 3, 3, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], |
| 1487 | [ 4, 4, 2, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], |
| 1488 | [ 3, 3, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], |
| 1489 | [ 2, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], |
| 1490 | [ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] |
| 1491 | ]; |
| 1492 | |
| 1493 | const ZERO_RUN_BITS: [[u8; 8]; 6] = [ |
| 1494 | [ 1, 0, 0, 0, 0, 0, 0, 0 ], |
| 1495 | [ 1, 1, 0, 0, 0, 0, 0, 0 ], |
| 1496 | [ 3, 2, 1, 0, 0, 0, 0, 0 ], |
| 1497 | [ 3, 2, 1, 1, 0, 0, 0, 0 ], |
| 1498 | [ 3, 2, 3, 2, 1, 0, 0, 0 ], |
| 1499 | [ 3, 0, 1, 3, 2, 5, 4, 0 ] |
| 1500 | ]; |
| 1501 | const ZERO_RUN_LENS: [[u8; 8]; 6] = [ |
| 1502 | [ 1, 1, 0, 0, 0, 0, 0, 0 ], |
| 1503 | [ 1, 2, 2, 0, 0, 0, 0, 0 ], |
| 1504 | [ 2, 2, 2, 2, 0, 0, 0, 0 ], |
| 1505 | [ 2, 2, 2, 3, 3, 0, 0, 0 ], |
| 1506 | [ 2, 2, 3, 3, 3, 3, 0, 0 ], |
| 1507 | [ 2, 3, 3, 3, 3, 3, 3, 0 ] |
| 1508 | ]; |
| 1509 | |