| 1 | use nihav_core::frame::{NAVideoBuffer, NAVideoBufferRef, NASimpleVideoFrame}; |
| 2 | use super::{BlockDSP, CBPInfo, MV}; |
| 3 | use super::super::blockdsp; |
| 4 | use super::data::H263_CHROMA_ROUND; |
| 5 | |
| 6 | /*const W1: i32 = 22725; |
| 7 | const W2: i32 = 21407; |
| 8 | const W3: i32 = 19266; |
| 9 | const W4: i32 = 16383; |
| 10 | const W5: i32 = 12873; |
| 11 | const W6: i32 = 8867; |
| 12 | const W7: i32 = 4520; |
| 13 | |
| 14 | const ROW_SHIFT: u8 = 11; |
| 15 | const COL_SHIFT: u8 = 20; |
| 16 | |
| 17 | fn idct_row(row: &mut [i16]) { |
| 18 | let in0 = row[0] as i32; |
| 19 | let in1 = row[1] as i32; |
| 20 | let in2 = row[2] as i32; |
| 21 | let in3 = row[3] as i32; |
| 22 | let in4 = row[4] as i32; |
| 23 | let in5 = row[5] as i32; |
| 24 | let in6 = row[6] as i32; |
| 25 | let in7 = row[7] as i32; |
| 26 | |
| 27 | let mut a0 = in0 * W1 + (1 << (ROW_SHIFT - 1)); |
| 28 | let mut a1 = a0; |
| 29 | let mut a2 = a0; |
| 30 | let mut a3 = a0; |
| 31 | |
| 32 | a0 += W2 * in2; |
| 33 | a1 += W6 * in2; |
| 34 | a2 -= W6 * in2; |
| 35 | a3 -= W2 * in2; |
| 36 | |
| 37 | let mut b0 = W1 * in1 + W3 * in3; |
| 38 | let mut b1 = W3 * in1 - W7 * in3; |
| 39 | let mut b2 = W5 * in1 - W1 * in3; |
| 40 | let mut b3 = W7 * in1 - W5 * in3; |
| 41 | |
| 42 | a0 += W4 * in4 + W6 * in6; |
| 43 | a1 -= W4 * in4 + W2 * in6; |
| 44 | a2 -= W4 * in4 - W2 * in6; |
| 45 | a3 += W4 * in4 - W6 * in6; |
| 46 | |
| 47 | b0 += W5 * in5 + W7 * in7; |
| 48 | b1 -= W1 * in5 + W5 * in7; |
| 49 | b2 += W7 * in5 + W3 * in7; |
| 50 | b3 += W3 * in5 - W1 * in7; |
| 51 | |
| 52 | row[0] = ((a0 + b0) >> ROW_SHIFT) as i16; |
| 53 | row[7] = ((a0 - b0) >> ROW_SHIFT) as i16; |
| 54 | row[1] = ((a1 + b1) >> ROW_SHIFT) as i16; |
| 55 | row[6] = ((a1 - b1) >> ROW_SHIFT) as i16; |
| 56 | row[2] = ((a2 + b2) >> ROW_SHIFT) as i16; |
| 57 | row[5] = ((a2 - b2) >> ROW_SHIFT) as i16; |
| 58 | row[3] = ((a3 + b3) >> ROW_SHIFT) as i16; |
| 59 | row[4] = ((a3 - b3) >> ROW_SHIFT) as i16; |
| 60 | } |
| 61 | |
| 62 | fn idct_col(blk: &mut [i16; 64], off: usize) { |
| 63 | let in0 = blk[off + 0*8] as i32; |
| 64 | let in1 = blk[off + 1*8] as i32; |
| 65 | let in2 = blk[off + 2*8] as i32; |
| 66 | let in3 = blk[off + 3*8] as i32; |
| 67 | let in4 = blk[off + 4*8] as i32; |
| 68 | let in5 = blk[off + 5*8] as i32; |
| 69 | let in6 = blk[off + 6*8] as i32; |
| 70 | let in7 = blk[off + 7*8] as i32; |
| 71 | |
| 72 | let mut a0 = in0 * W1 + (1 << (COL_SHIFT - 1)); |
| 73 | let mut a1 = a0; |
| 74 | let mut a2 = a0; |
| 75 | let mut a3 = a0; |
| 76 | |
| 77 | a0 += W2 * in2; |
| 78 | a1 += W6 * in2; |
| 79 | a2 -= W6 * in2; |
| 80 | a3 -= W2 * in2; |
| 81 | |
| 82 | let mut b0 = W1 * in1 + W3 * in3; |
| 83 | let mut b1 = W3 * in1 - W7 * in3; |
| 84 | let mut b2 = W5 * in1 - W1 * in3; |
| 85 | let mut b3 = W7 * in1 - W5 * in3; |
| 86 | |
| 87 | a0 += W4 * in4 + W6 * in6; |
| 88 | a1 -= W4 * in4 + W2 * in6; |
| 89 | a2 -= W4 * in4 - W2 * in6; |
| 90 | a3 += W4 * in4 - W6 * in6; |
| 91 | |
| 92 | b0 += W5 * in5 + W7 * in7; |
| 93 | b1 -= W1 * in5 + W5 * in7; |
| 94 | b2 += W7 * in5 + W3 * in7; |
| 95 | b3 += W3 * in5 - W1 * in7; |
| 96 | |
| 97 | blk[off + 0*8] = ((a0 + b0) >> COL_SHIFT) as i16; |
| 98 | blk[off + 7*8] = ((a0 - b0) >> COL_SHIFT) as i16; |
| 99 | blk[off + 1*8] = ((a1 + b1) >> COL_SHIFT) as i16; |
| 100 | blk[off + 6*8] = ((a1 - b1) >> COL_SHIFT) as i16; |
| 101 | blk[off + 2*8] = ((a2 + b2) >> COL_SHIFT) as i16; |
| 102 | blk[off + 5*8] = ((a2 - b2) >> COL_SHIFT) as i16; |
| 103 | blk[off + 3*8] = ((a3 + b3) >> COL_SHIFT) as i16; |
| 104 | blk[off + 4*8] = ((a3 - b3) >> COL_SHIFT) as i16; |
| 105 | } |
| 106 | |
| 107 | #[allow(dead_code)] |
| 108 | pub fn h263_idct(blk: &mut [i16; 64]) { |
| 109 | for i in 0..8 { idct_row(&mut blk[i*8..(i+1)*8]); } |
| 110 | for i in 0..8 { idct_col(blk, i); } |
| 111 | }*/ |
| 112 | |
| 113 | const W1: i32 = 2841; |
| 114 | const W2: i32 = 2676; |
| 115 | const W3: i32 = 2408; |
| 116 | const W5: i32 = 1609; |
| 117 | const W6: i32 = 1108; |
| 118 | const W7: i32 = 565; |
| 119 | const W8: i32 = 181; |
| 120 | |
| 121 | const ROW_SHIFT: u8 = 8; |
| 122 | const COL_SHIFT: u8 = 14; |
| 123 | |
| 124 | #[allow(clippy::erasing_op)] |
| 125 | fn idct_row(row: &mut [i16]) { |
| 126 | let in0 = ((i32::from(row[0])) << 11) + (1 << (ROW_SHIFT - 1)); |
| 127 | let in1 = (i32::from(row[4])) << 11; |
| 128 | let in2 = i32::from(row[6]); |
| 129 | let in3 = i32::from(row[2]); |
| 130 | let in4 = i32::from(row[1]); |
| 131 | let in5 = i32::from(row[7]); |
| 132 | let in6 = i32::from(row[5]); |
| 133 | let in7 = i32::from(row[3]); |
| 134 | |
| 135 | let tmp = W7 * (in4 + in5); |
| 136 | let a4 = tmp + (W1 - W7) * in4; |
| 137 | let a5 = tmp - (W1 + W7) * in5; |
| 138 | |
| 139 | let tmp = W3 * (in6 + in7); |
| 140 | let a6 = tmp - (W3 - W5) * in6; |
| 141 | let a7 = tmp - (W3 + W5) * in7; |
| 142 | |
| 143 | let tmp = in0 + in1; |
| 144 | |
| 145 | let a0 = in0 - in1; |
| 146 | let t1 = W6 * (in2 + in3); |
| 147 | let a2 = t1 - (W2 + W6) * in2; |
| 148 | let a3 = t1 + (W2 - W6) * in3; |
| 149 | let b1 = a4 + a6; |
| 150 | |
| 151 | let b4 = a4 - a6; |
| 152 | let t2 = a5 - a7; |
| 153 | let b6 = a5 + a7; |
| 154 | let b7 = tmp + a3; |
| 155 | let b5 = tmp - a3; |
| 156 | let b3 = a0 + a2; |
| 157 | let b0 = a0 - a2; |
| 158 | let b2 = (W8 * (b4 + t2) + 128) >> 8; |
| 159 | let b4 = (W8 * (b4 - t2) + 128) >> 8; |
| 160 | |
| 161 | row[0] = ((b7 + b1) >> ROW_SHIFT) as i16; |
| 162 | row[7] = ((b7 - b1) >> ROW_SHIFT) as i16; |
| 163 | row[1] = ((b3 + b2) >> ROW_SHIFT) as i16; |
| 164 | row[6] = ((b3 - b2) >> ROW_SHIFT) as i16; |
| 165 | row[2] = ((b0 + b4) >> ROW_SHIFT) as i16; |
| 166 | row[5] = ((b0 - b4) >> ROW_SHIFT) as i16; |
| 167 | row[3] = ((b5 + b6) >> ROW_SHIFT) as i16; |
| 168 | row[4] = ((b5 - b6) >> ROW_SHIFT) as i16; |
| 169 | } |
| 170 | |
| 171 | #[allow(clippy::erasing_op)] |
| 172 | fn idct_col(blk: &mut [i16; 64], off: usize) { |
| 173 | let in0 = ((i32::from(blk[off + 0*8])) << 8) + (1 << (COL_SHIFT - 1)); |
| 174 | let in1 = (i32::from(blk[off + 4*8])) << 8; |
| 175 | let in2 = i32::from(blk[off + 6*8]); |
| 176 | let in3 = i32::from(blk[off + 2*8]); |
| 177 | let in4 = i32::from(blk[off + 1*8]); |
| 178 | let in5 = i32::from(blk[off + 7*8]); |
| 179 | let in6 = i32::from(blk[off + 5*8]); |
| 180 | let in7 = i32::from(blk[off + 3*8]); |
| 181 | |
| 182 | let tmp = W7 * (in4 + in5); |
| 183 | let a4 = (tmp + (W1 - W7) * in4) >> 3; |
| 184 | let a5 = (tmp - (W1 + W7) * in5) >> 3; |
| 185 | |
| 186 | let tmp = W3 * (in6 + in7); |
| 187 | let a6 = (tmp - (W3 - W5) * in6) >> 3; |
| 188 | let a7 = (tmp - (W3 + W5) * in7) >> 3; |
| 189 | |
| 190 | let tmp = in0 + in1; |
| 191 | |
| 192 | let a0 = in0 - in1; |
| 193 | let t1 = W6 * (in2 + in3); |
| 194 | let a2 = (t1 - (W2 + W6) * in2) >> 3; |
| 195 | let a3 = (t1 + (W2 - W6) * in3) >> 3; |
| 196 | let b1 = a4 + a6; |
| 197 | |
| 198 | let b4 = a4 - a6; |
| 199 | let t2 = a5 - a7; |
| 200 | let b6 = a5 + a7; |
| 201 | let b7 = tmp + a3; |
| 202 | let b5 = tmp - a3; |
| 203 | let b3 = a0 + a2; |
| 204 | let b0 = a0 - a2; |
| 205 | let b2 = (W8 * (b4 + t2) + 128) >> 8; |
| 206 | let b4 = (W8 * (b4 - t2) + 128) >> 8; |
| 207 | |
| 208 | blk[off + 0*8] = ((b7 + b1) >> COL_SHIFT) as i16; |
| 209 | blk[off + 7*8] = ((b7 - b1) >> COL_SHIFT) as i16; |
| 210 | blk[off + 1*8] = ((b3 + b2) >> COL_SHIFT) as i16; |
| 211 | blk[off + 6*8] = ((b3 - b2) >> COL_SHIFT) as i16; |
| 212 | blk[off + 2*8] = ((b0 + b4) >> COL_SHIFT) as i16; |
| 213 | blk[off + 5*8] = ((b0 - b4) >> COL_SHIFT) as i16; |
| 214 | blk[off + 3*8] = ((b5 + b6) >> COL_SHIFT) as i16; |
| 215 | blk[off + 4*8] = ((b5 - b6) >> COL_SHIFT) as i16; |
| 216 | } |
| 217 | |
| 218 | #[allow(dead_code)] |
| 219 | pub fn h263_idct(blk: &mut [i16; 64]) { |
| 220 | for i in 0..8 { idct_row(&mut blk[i*8..(i+1)*8]); } |
| 221 | for i in 0..8 { idct_col(blk, i); } |
| 222 | } |
| 223 | |
| 224 | struct IDCTAnnexW {} |
| 225 | |
| 226 | impl IDCTAnnexW { |
| 227 | const CPO8: i32 = 0x539f; |
| 228 | const SPO8: i32 = 0x4546; |
| 229 | const CPO16: i32 = 0x7d8a; |
| 230 | const SPO16: i32 = 0x18f9; |
| 231 | const C3PO16: i32 = 0x6a6e; |
| 232 | const S3PO16: i32 = 0x471d; |
| 233 | const OOR2: i32 = 0x5a82; |
| 234 | |
| 235 | fn rotate(a: i32, b: i32, c: i32, s: i32, cs: i8, ss: i8) -> (i32, i32) { |
| 236 | let (t00, t10) = if cs > 0 { |
| 237 | ((a * c) >> cs, (b * c) >> cs) |
| 238 | } else { |
| 239 | ((a * c) << -cs, (b * c) << -cs) |
| 240 | }; |
| 241 | let (t01, t11) = if ss > 0 { |
| 242 | ((a * s) >> ss, (b * s) >> ss) |
| 243 | } else { |
| 244 | ((a * s) << -ss, (b * s) << -ss) |
| 245 | }; |
| 246 | ((t01 - t10 + 0x7FFF) >> 16, (t00 + t11 + 0x7FFF) >> 16) |
| 247 | } |
| 248 | |
| 249 | fn bfly(a: i32, b: i32) -> (i32, i32) { (a + b, a - b) } |
| 250 | |
| 251 | fn idct_row(dst: &mut [i32; 64], src: &[i16; 64]) { |
| 252 | for (drow, srow) in dst.chunks_mut(8).zip(src.chunks(8)) { |
| 253 | let s0 = i32::from(srow[0]) << 4; |
| 254 | let s1 = i32::from(srow[1]) << 4; |
| 255 | let s2 = i32::from(srow[2]) << 4; |
| 256 | let s3 = i32::from(srow[3]) << 4; |
| 257 | let s4 = i32::from(srow[4]) << 4; |
| 258 | let s5 = i32::from(srow[5]) << 4; |
| 259 | let s6 = i32::from(srow[6]) << 4; |
| 260 | let s7 = i32::from(srow[7]) << 4; |
| 261 | |
| 262 | let (s2, s6) = Self::rotate(s2, s6, Self::CPO8, Self::SPO8, -2, -1); |
| 263 | let (s1, s7) = Self::rotate(s1, s7, Self::CPO16, Self::SPO16, -1, -1); |
| 264 | let (s3, s5) = Self::rotate(s3, s5, Self::C3PO16, Self::S3PO16, -1, -1); |
| 265 | let (s0, s4) = Self::bfly(s0, s4); |
| 266 | |
| 267 | let (s3, s1) = Self::bfly(s1, s3); |
| 268 | let (s5, s7) = Self::bfly(s7, s5); |
| 269 | let (s0, s6) = Self::bfly(s0, s6); |
| 270 | let (s4, s2) = Self::bfly(s4, s2); |
| 271 | |
| 272 | let (s3, s7) = Self::bfly(s7, s3); |
| 273 | let s1 = (s1 * Self::OOR2 * 4).saturating_add(0x7FFF) >> 16; |
| 274 | let s5 = (s5 * Self::OOR2 * 4).saturating_add(0x7FFF) >> 16; |
| 275 | |
| 276 | drow[1] = s4 + s3; |
| 277 | drow[6] = s4 - s3; |
| 278 | drow[2] = s2 + s7; |
| 279 | drow[5] = s2 - s7; |
| 280 | drow[0] = s0 + s5; |
| 281 | drow[7] = s0 - s5; |
| 282 | drow[3] = s6 + s1; |
| 283 | drow[4] = s6 - s1; |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | #[allow(clippy::erasing_op)] |
| 288 | #[allow(clippy::identity_op)] |
| 289 | fn idct_col(dst: &mut [i16; 64], src: &[i32; 64]) { |
| 290 | for i in 0..8 { |
| 291 | let s0 = src[i + 8 * 0]; |
| 292 | let s1 = src[i + 8 * 1]; |
| 293 | let s2 = src[i + 8 * 2]; |
| 294 | let s3 = src[i + 8 * 3]; |
| 295 | let s4 = src[i + 8 * 4]; |
| 296 | let s5 = src[i + 8 * 5]; |
| 297 | let s6 = src[i + 8 * 6]; |
| 298 | let s7 = src[i + 8 * 7]; |
| 299 | |
| 300 | let (s2, s6) = Self::rotate(s2, s6, Self::CPO8, Self::SPO8, -1, 0); |
| 301 | let (s1, s7) = Self::rotate(s1, s7, Self::CPO16, Self::SPO16, 0, 0); |
| 302 | let (s3, s5) = Self::rotate(s3, s5, Self::C3PO16, Self::S3PO16, 0, 0); |
| 303 | let (a, b) = Self::bfly(s0, s4); |
| 304 | let (s0, s4) = if s4 >= 0 { |
| 305 | (a >> 1, b >> 1) |
| 306 | } else { |
| 307 | ((a + 1) >> 1, (b + 1) >> 1) |
| 308 | }; |
| 309 | |
| 310 | let (s3, s1) = Self::bfly(s1, s3); |
| 311 | let (s5, s7) = Self::bfly(s7, s5); |
| 312 | let (s0, s6) = Self::bfly(s0, s6); |
| 313 | let (s4, s2) = Self::bfly(s4, s2); |
| 314 | |
| 315 | let (s3, s7) = Self::bfly(s7, s3); |
| 316 | let s1 = (s1 * Self::OOR2 * 4).saturating_add(0x7FFF) >> 16; |
| 317 | let s5 = (s5 * Self::OOR2 * 4).saturating_add(0x7FFF) >> 16; |
| 318 | |
| 319 | dst[i + 8 * 1] = ((s4 + s3) >> 6) as i16; |
| 320 | dst[i + 8 * 6] = ((s4 - s3) >> 6) as i16; |
| 321 | dst[i + 8 * 2] = ((s2 + s7) >> 6) as i16; |
| 322 | dst[i + 8 * 5] = ((s2 - s7) >> 6) as i16; |
| 323 | dst[i + 8 * 0] = ((s0 + s5) >> 6) as i16; |
| 324 | dst[i + 8 * 7] = ((s0 - s5) >> 6) as i16; |
| 325 | dst[i + 8 * 3] = ((s6 + s1) >> 6) as i16; |
| 326 | dst[i + 8 * 4] = ((s6 - s1) >> 6) as i16; |
| 327 | } |
| 328 | } |
| 329 | } |
| 330 | #[allow(dead_code)] |
| 331 | pub fn h263_annex_w_idct(blk: &mut [i16; 64]) { |
| 332 | let mut tmp = [0i32; 64]; |
| 333 | IDCTAnnexW::idct_row(&mut tmp, blk); |
| 334 | IDCTAnnexW::idct_col(blk, &tmp); |
| 335 | } |
| 336 | |
| 337 | fn h263_interp00(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize) |
| 338 | { |
| 339 | let mut didx = 0; |
| 340 | let mut sidx = 0; |
| 341 | for _ in 0..bh { |
| 342 | for x in 0..bw { dst[didx + x] = src[sidx + x]; } |
| 343 | didx += dstride; |
| 344 | sidx += sstride; |
| 345 | } |
| 346 | } |
| 347 | |
| 348 | fn h263_interp01(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize) |
| 349 | { |
| 350 | let mut didx = 0; |
| 351 | let mut sidx = 0; |
| 352 | for _ in 0..bh { |
| 353 | for x in 0..bw { dst[didx + x] = (((src[sidx + x] as u16) + (src[sidx + x + 1] as u16) + 1) >> 1) as u8; } |
| 354 | didx += dstride; |
| 355 | sidx += sstride; |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | fn h263_interp10(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize) |
| 360 | { |
| 361 | let mut didx = 0; |
| 362 | let mut sidx = 0; |
| 363 | for _ in 0..bh { |
| 364 | for x in 0..bw { dst[didx + x] = (((src[sidx + x] as u16) + (src[sidx + x + sstride] as u16) + 1) >> 1) as u8; } |
| 365 | didx += dstride; |
| 366 | sidx += sstride; |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | fn h263_interp11(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize) |
| 371 | { |
| 372 | let mut didx = 0; |
| 373 | let mut sidx = 0; |
| 374 | for _ in 0..bh { |
| 375 | for x in 0..bw { |
| 376 | dst[didx + x] = (((src[sidx + x] as u16) + |
| 377 | (src[sidx + x + 1] as u16) + |
| 378 | (src[sidx + x + sstride] as u16) + |
| 379 | (src[sidx + x + sstride + 1] as u16) + 2) >> 2) as u8; |
| 380 | } |
| 381 | didx += dstride; |
| 382 | sidx += sstride; |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | pub const H263_INTERP_FUNCS: &[blockdsp::BlkInterpFunc] = &[ |
| 387 | h263_interp00, h263_interp01, h263_interp10, h263_interp11 ]; |
| 388 | |
| 389 | fn h263_interp00_avg(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize) |
| 390 | { |
| 391 | let mut didx = 0; |
| 392 | let mut sidx = 0; |
| 393 | for _ in 0..bh { |
| 394 | for x in 0..bw { |
| 395 | let a = dst[didx + x] as u16; |
| 396 | let b = src[sidx + x] as u16; |
| 397 | dst[didx + x] = ((a + b + 1) >> 1) as u8; |
| 398 | } |
| 399 | didx += dstride; |
| 400 | sidx += sstride; |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | fn h263_interp01_avg(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize) |
| 405 | { |
| 406 | let mut didx = 0; |
| 407 | let mut sidx = 0; |
| 408 | for _ in 0..bh { |
| 409 | for x in 0..bw { |
| 410 | let a = dst[didx + x] as u16; |
| 411 | let b = ((src[sidx + x] as u16) + (src[sidx + x + 1] as u16) + 1) >> 1; |
| 412 | dst[didx + x] = ((a + b + 1) >> 1) as u8; |
| 413 | } |
| 414 | didx += dstride; |
| 415 | sidx += sstride; |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | fn h263_interp10_avg(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize) |
| 420 | { |
| 421 | let mut didx = 0; |
| 422 | let mut sidx = 0; |
| 423 | for _ in 0..bh { |
| 424 | for x in 0..bw { |
| 425 | let a = dst[didx + x] as u16; |
| 426 | let b = ((src[sidx + x] as u16) + (src[sidx + x + sstride] as u16) + 1) >> 1; |
| 427 | dst[didx + x] = ((a + b + 1) >> 1) as u8; |
| 428 | } |
| 429 | didx += dstride; |
| 430 | sidx += sstride; |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | fn h263_interp11_avg(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize) |
| 435 | { |
| 436 | let mut didx = 0; |
| 437 | let mut sidx = 0; |
| 438 | for _ in 0..bh { |
| 439 | for x in 0..bw { |
| 440 | let a = dst[didx + x] as u16; |
| 441 | let b = ((src[sidx + x] as u16) + |
| 442 | (src[sidx + x + 1] as u16) + |
| 443 | (src[sidx + x + sstride] as u16) + |
| 444 | (src[sidx + x + sstride + 1] as u16) + 2) >> 2; |
| 445 | dst[didx + x] = ((a + b + 1) >> 1) as u8; |
| 446 | } |
| 447 | didx += dstride; |
| 448 | sidx += sstride; |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | pub const H263_INTERP_AVG_FUNCS: &[blockdsp::BlkInterpFunc] = &[ |
| 453 | h263_interp00_avg, h263_interp01_avg, h263_interp10_avg, h263_interp11_avg ]; |
| 454 | |
| 455 | #[derive(Default)] |
| 456 | pub struct H263BlockDSP { } |
| 457 | |
| 458 | impl H263BlockDSP { |
| 459 | pub fn new() -> Self { |
| 460 | H263BlockDSP { } |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | #[allow(clippy::erasing_op)] |
| 465 | fn deblock_hor(buf: &mut NAVideoBuffer<u8>, comp: usize, strength: u8, off: usize) { |
| 466 | let stride = buf.get_stride(comp); |
| 467 | let dptr = buf.get_data_mut().unwrap(); |
| 468 | let buf = dptr.as_mut_slice(); |
| 469 | for x in 0..8 { |
| 470 | let a = buf[off - 2 * stride + x] as i16; |
| 471 | let b = buf[off - 1 * stride + x] as i16; |
| 472 | let c = buf[off + 0 * stride + x] as i16; |
| 473 | let d = buf[off + 1 * stride + x] as i16; |
| 474 | let diff = ((a - d) + (c - b) * 4) / 8; |
| 475 | if (diff != 0) && (diff > -24) && (diff < 24) { |
| 476 | let d1a = (diff.abs() - 2 * (diff.abs() - (strength as i16)).max(0)).max(0); |
| 477 | let d1 = if diff < 0 { -d1a } else { d1a }; |
| 478 | let hd1 = d1a / 2; |
| 479 | let d2 = ((a - d) / 4).max(-hd1).min(hd1); |
| 480 | |
| 481 | buf[off - 2 * stride + x] = (a - d2) as u8; |
| 482 | buf[off - 1 * stride + x] = (b + d1).max(0).min(255) as u8; |
| 483 | buf[off + 0 * stride + x] = (c - d1).max(0).min(255) as u8; |
| 484 | buf[off + 1 * stride + x] = (d + d2) as u8; |
| 485 | } |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | fn deblock_ver(buf: &mut NAVideoBuffer<u8>, comp: usize, strength: u8, off: usize) { |
| 490 | let stride = buf.get_stride(comp); |
| 491 | let dptr = buf.get_data_mut().unwrap(); |
| 492 | let buf = dptr.as_mut_slice(); |
| 493 | for y in 0..8 { |
| 494 | let a = buf[off - 2 + y * stride] as i16; |
| 495 | let b = buf[off - 1 + y * stride] as i16; |
| 496 | let c = buf[off + 0 + y * stride] as i16; |
| 497 | let d = buf[off + 1 + y * stride] as i16; |
| 498 | let diff = (a - d + (c - b) * 4) / 8; |
| 499 | if (diff != 0) && (diff > -24) && (diff < 24) { |
| 500 | let d1a = (diff.abs() - 2 * (diff.abs() - (strength as i16)).max(0)).max(0); |
| 501 | let d1 = if diff < 0 { -d1a } else { d1a }; |
| 502 | let hd1 = d1a / 2; |
| 503 | let d2 = ((a - d) / 4).max(-hd1).min(hd1); |
| 504 | |
| 505 | buf[off - 2 + y * stride] = (a - d2) as u8; |
| 506 | buf[off - 1 + y * stride] = (b + d1).max(0).min(255) as u8; |
| 507 | buf[off + y * stride] = (c - d1).max(0).min(255) as u8; |
| 508 | buf[off + 1 + y * stride] = (d + d2) as u8; |
| 509 | } |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | const FILTER_STRENGTH: [u8; 32] = [ |
| 514 | 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, |
| 515 | 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 12 |
| 516 | ]; |
| 517 | |
| 518 | pub fn h263_filter_row(buf: &mut NAVideoBuffer<u8>, mb_y: usize, mb_w: usize, cbpi: &CBPInfo) { |
| 519 | let stride = buf.get_stride(0); |
| 520 | let mut off = buf.get_offset(0) + mb_y * 16 * stride; |
| 521 | for mb_x in 0..mb_w { |
| 522 | let coff = off; |
| 523 | let coded0 = cbpi.is_coded(mb_x, 0); |
| 524 | let coded1 = cbpi.is_coded(mb_x, 1); |
| 525 | let q = cbpi.get_q(mb_w + mb_x); |
| 526 | let str = if q < 32 { FILTER_STRENGTH[q as usize] } else { 0 }; |
| 527 | if mb_y != 0 { |
| 528 | if coded0 && cbpi.is_coded_top(mb_x, 0) { deblock_hor(buf, 0, str, coff); } |
| 529 | if coded1 && cbpi.is_coded_top(mb_x, 1) { deblock_hor(buf, 0, str, coff + 8); } |
| 530 | } |
| 531 | let coff = off + 8 * stride; |
| 532 | if cbpi.is_coded(mb_x, 2) && coded0 { deblock_hor(buf, 0, q, coff); } |
| 533 | if cbpi.is_coded(mb_x, 3) && coded1 { deblock_hor(buf, 0, q, coff + 8); } |
| 534 | off += 16; |
| 535 | } |
| 536 | let mut leftt = false; |
| 537 | let mut leftc = false; |
| 538 | let mut off = buf.get_offset(0) + mb_y * 16 * stride; |
| 539 | for mb_x in 0..mb_w { |
| 540 | let ctop0 = cbpi.is_coded_top(mb_x, 0); |
| 541 | let ctop1 = cbpi.is_coded_top(mb_x, 0); |
| 542 | let ccur0 = cbpi.is_coded(mb_x, 0); |
| 543 | let ccur1 = cbpi.is_coded(mb_x, 1); |
| 544 | let q = cbpi.get_q(mb_w + mb_x); |
| 545 | let str = if q < 32 { FILTER_STRENGTH[q as usize] } else { 0 }; |
| 546 | if mb_y != 0 { |
| 547 | let coff = off - 8 * stride; |
| 548 | let qtop = cbpi.get_q(mb_x); |
| 549 | let strtop = if qtop < 32 { FILTER_STRENGTH[qtop as usize] } else { 0 }; |
| 550 | if leftt && ctop0 { deblock_ver(buf, 0, strtop, coff); } |
| 551 | if ctop0 && ctop1 { deblock_ver(buf, 0, strtop, coff + 8); } |
| 552 | } |
| 553 | if leftc && ccur0 { deblock_ver(buf, 0, str, off); } |
| 554 | if ccur0 && ccur1 { deblock_ver(buf, 0, str, off + 8); } |
| 555 | leftt = ctop1; |
| 556 | leftc = ccur1; |
| 557 | off += 16; |
| 558 | } |
| 559 | let strideu = buf.get_stride(1); |
| 560 | let stridev = buf.get_stride(2); |
| 561 | let offu = buf.get_offset(1) + mb_y * 8 * strideu; |
| 562 | let offv = buf.get_offset(2) + mb_y * 8 * stridev; |
| 563 | if mb_y != 0 { |
| 564 | for mb_x in 0..mb_w { |
| 565 | let ctu = cbpi.is_coded_top(mb_x, 4); |
| 566 | let ccu = cbpi.is_coded(mb_x, 4); |
| 567 | let ctv = cbpi.is_coded_top(mb_x, 5); |
| 568 | let ccv = cbpi.is_coded(mb_x, 5); |
| 569 | let q = cbpi.get_q(mb_w + mb_x); |
| 570 | let str = if q < 32 { FILTER_STRENGTH[q as usize] } else { 0 }; |
| 571 | if ctu && ccu { deblock_hor(buf, 1, str, offu + mb_x * 8); } |
| 572 | if ctv && ccv { deblock_hor(buf, 2, str, offv + mb_x * 8); } |
| 573 | } |
| 574 | let mut leftu = false; |
| 575 | let mut leftv = false; |
| 576 | let offu = buf.get_offset(1) + (mb_y - 1) * 8 * strideu; |
| 577 | let offv = buf.get_offset(2) + (mb_y - 1) * 8 * stridev; |
| 578 | for mb_x in 0..mb_w { |
| 579 | let ctu = cbpi.is_coded_top(mb_x, 4); |
| 580 | let ctv = cbpi.is_coded_top(mb_x, 5); |
| 581 | let qt = cbpi.get_q(mb_x); |
| 582 | let strt = if qt < 32 { FILTER_STRENGTH[qt as usize] } else { 0 }; |
| 583 | if leftu && ctu { deblock_ver(buf, 1, strt, offu + mb_x * 8); } |
| 584 | if leftv && ctv { deblock_ver(buf, 2, strt, offv + mb_x * 8); } |
| 585 | leftu = ctu; |
| 586 | leftv = ctv; |
| 587 | } |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | impl BlockDSP for H263BlockDSP { |
| 592 | fn idct(&self, blk: &mut [i16; 64]) { |
| 593 | h263_idct(blk) |
| 594 | } |
| 595 | fn copy_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mv: MV) { |
| 596 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; |
| 597 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); |
| 598 | |
| 599 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); |
| 600 | |
| 601 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos, ypos, mv.x >> 1, mv.y >> 1, 16, 16, 0, 1, mode, H263_INTERP_FUNCS); |
| 602 | blockdsp::copy_block(&mut dst, src.clone(), 1, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_FUNCS); |
| 603 | blockdsp::copy_block(&mut dst, src, 2, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_FUNCS); |
| 604 | } |
| 605 | fn copy_blocks8x8(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mvs: &[MV; 4]) { |
| 606 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); |
| 607 | |
| 608 | for i in 0..4 { |
| 609 | let xadd = (i & 1) * 8; |
| 610 | let yadd = (i & 2) * 4; |
| 611 | let mode = ((mvs[i].x & 1) + (mvs[i].y & 1) * 2) as usize; |
| 612 | |
| 613 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos + xadd, ypos + yadd, mvs[i].x >> 1, mvs[i].y >> 1, 8, 8, 0, 1, mode, H263_INTERP_FUNCS); |
| 614 | } |
| 615 | |
| 616 | let sum_mv = mvs[0] + mvs[1] + mvs[2] + mvs[3]; |
| 617 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; |
| 618 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; |
| 619 | let mode = ((cmx & 1) + (cmy & 1) * 2) as usize; |
| 620 | for plane in 1..3 { |
| 621 | blockdsp::copy_block(&mut dst, src.clone(), plane, xpos >> 1, ypos >> 1, cmx >> 1, cmy >> 1, 8, 8, 0, 1, mode, H263_INTERP_FUNCS); |
| 622 | } |
| 623 | } |
| 624 | fn avg_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mv: MV) { |
| 625 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; |
| 626 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); |
| 627 | |
| 628 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); |
| 629 | |
| 630 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos, ypos, mv.x >> 1, mv.y >> 1, 16, 16, 0, 1, mode, H263_INTERP_AVG_FUNCS); |
| 631 | blockdsp::copy_block(&mut dst, src.clone(), 1, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_AVG_FUNCS); |
| 632 | blockdsp::copy_block(&mut dst, src, 2, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_AVG_FUNCS); |
| 633 | } |
| 634 | fn avg_blocks8x8(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mvs: &[MV; 4]) { |
| 635 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); |
| 636 | |
| 637 | for i in 0..4 { |
| 638 | let xadd = (i & 1) * 8; |
| 639 | let yadd = (i & 2) * 4; |
| 640 | let mode = ((mvs[i].x & 1) + (mvs[i].y & 1) * 2) as usize; |
| 641 | |
| 642 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos + xadd, ypos + yadd, mvs[i].x >> 1, mvs[i].y >> 1, 8, 8, 0, 1, mode, H263_INTERP_AVG_FUNCS); |
| 643 | } |
| 644 | |
| 645 | let sum_mv = mvs[0] + mvs[1] + mvs[2] + mvs[3]; |
| 646 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; |
| 647 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; |
| 648 | let mode = ((cmx & 1) + (cmy & 1) * 2) as usize; |
| 649 | for plane in 1..3 { |
| 650 | blockdsp::copy_block(&mut dst, src.clone(), plane, xpos >> 1, ypos >> 1, cmx >> 1, cmy >> 1, 8, 8, 0, 1, mode, H263_INTERP_AVG_FUNCS); |
| 651 | } |
| 652 | } |
| 653 | fn filter_row(&self, buf: &mut NAVideoBuffer<u8>, mb_y: usize, mb_w: usize, cbpi: &CBPInfo) { |
| 654 | h263_filter_row(buf, mb_y, mb_w, cbpi) |
| 655 | } |
| 656 | } |
| 657 | |
| 658 | macro_rules! obmc_filter { |
| 659 | ($src: expr, $base_off: expr, $off0: expr, $w0: expr, $off1: expr, $w1: expr, $off2: expr, $w2: expr) => ({ |
| 660 | let a = $src[$base_off + $off0] as u16; |
| 661 | let b = $src[$base_off + $off1] as u16; |
| 662 | let c = $src[$base_off + $off2] as u16; |
| 663 | ((a * $w0 + b * $w1 + c * $w2 + 4) >> 3) as u8 |
| 664 | }) |
| 665 | } |
| 666 | pub fn obmc_filter(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize) { |
| 667 | let top_off = 8 + sstride * 0; |
| 668 | let left_off = 0 + sstride * 8; |
| 669 | let right_off = 16 + sstride * 8; |
| 670 | let bottom_off = 8 + sstride * 16; |
| 671 | let cur_off = 8 + sstride * 8; |
| 672 | |
| 673 | let mut doff = 0; |
| 674 | let mut soff = 0; |
| 675 | |
| 676 | dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, top_off, 2, cur_off, 4); |
| 677 | dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 1, top_off, 2, cur_off, 5); |
| 678 | dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, top_off, 2, cur_off, 5); |
| 679 | dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, top_off, 2, cur_off, 5); |
| 680 | dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, top_off, 2, cur_off, 5); |
| 681 | dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, top_off, 2, cur_off, 5); |
| 682 | dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 1, top_off, 2, cur_off, 5); |
| 683 | dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, top_off, 2, cur_off, 4); |
| 684 | doff += dstride; |
| 685 | soff += sstride; |
| 686 | |
| 687 | dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, top_off, 1, cur_off, 5); |
| 688 | dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, top_off, 1, cur_off, 5); |
| 689 | dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, top_off, 2, cur_off, 5); |
| 690 | dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, top_off, 2, cur_off, 5); |
| 691 | dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, top_off, 2, cur_off, 5); |
| 692 | dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, top_off, 2, cur_off, 5); |
| 693 | dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, top_off, 1, cur_off, 5); |
| 694 | dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, top_off, 1, cur_off, 5); |
| 695 | doff += dstride; |
| 696 | soff += sstride; |
| 697 | |
| 698 | dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, top_off, 1, cur_off, 5); |
| 699 | dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, top_off, 1, cur_off, 5); |
| 700 | dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, top_off, 1, cur_off, 6); |
| 701 | dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, top_off, 1, cur_off, 6); |
| 702 | dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, top_off, 1, cur_off, 6); |
| 703 | dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, top_off, 1, cur_off, 6); |
| 704 | dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, top_off, 1, cur_off, 5); |
| 705 | dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, top_off, 1, cur_off, 5); |
| 706 | doff += dstride; |
| 707 | soff += sstride; |
| 708 | |
| 709 | dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, top_off, 1, cur_off, 5); |
| 710 | dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, top_off, 1, cur_off, 5); |
| 711 | dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, top_off, 1, cur_off, 6); |
| 712 | dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, top_off, 1, cur_off, 6); |
| 713 | dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, top_off, 1, cur_off, 6); |
| 714 | dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, top_off, 1, cur_off, 6); |
| 715 | dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, top_off, 1, cur_off, 5); |
| 716 | dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, top_off, 1, cur_off, 5); |
| 717 | doff += dstride; |
| 718 | soff += sstride; |
| 719 | |
| 720 | dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, bottom_off, 1, cur_off, 5); |
| 721 | dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, bottom_off, 1, cur_off, 5); |
| 722 | dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, bottom_off, 1, cur_off, 6); |
| 723 | dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, bottom_off, 1, cur_off, 6); |
| 724 | dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, bottom_off, 1, cur_off, 6); |
| 725 | dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, bottom_off, 1, cur_off, 6); |
| 726 | dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, bottom_off, 1, cur_off, 5); |
| 727 | dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, bottom_off, 1, cur_off, 5); |
| 728 | doff += dstride; |
| 729 | soff += sstride; |
| 730 | |
| 731 | dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, bottom_off, 1, cur_off, 5); |
| 732 | dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, bottom_off, 1, cur_off, 5); |
| 733 | dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, bottom_off, 1, cur_off, 6); |
| 734 | dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, bottom_off, 1, cur_off, 6); |
| 735 | dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, bottom_off, 1, cur_off, 6); |
| 736 | dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, bottom_off, 1, cur_off, 6); |
| 737 | dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, bottom_off, 1, cur_off, 5); |
| 738 | dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, bottom_off, 1, cur_off, 5); |
| 739 | doff += dstride; |
| 740 | soff += sstride; |
| 741 | |
| 742 | dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, bottom_off, 1, cur_off, 5); |
| 743 | dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, bottom_off, 1, cur_off, 5); |
| 744 | dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, bottom_off, 2, cur_off, 5); |
| 745 | dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, bottom_off, 2, cur_off, 5); |
| 746 | dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, bottom_off, 2, cur_off, 5); |
| 747 | dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, bottom_off, 2, cur_off, 5); |
| 748 | dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, bottom_off, 1, cur_off, 5); |
| 749 | dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, bottom_off, 1, cur_off, 5); |
| 750 | doff += dstride; |
| 751 | soff += sstride; |
| 752 | |
| 753 | dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, bottom_off, 2, cur_off, 4); |
| 754 | dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 1, bottom_off, 2, cur_off, 5); |
| 755 | dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, bottom_off, 2, cur_off, 5); |
| 756 | dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, bottom_off, 2, cur_off, 5); |
| 757 | dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, bottom_off, 2, cur_off, 5); |
| 758 | dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, bottom_off, 2, cur_off, 5); |
| 759 | dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 1, bottom_off, 2, cur_off, 5); |
| 760 | dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, bottom_off, 2, cur_off, 4); |
| 761 | } |