| 1 | use nihav_core::io::bitreader::*; |
| 2 | use nihav_core::io::codebook::*; |
| 3 | use nihav_core::formats; |
| 4 | use nihav_core::frame::*; |
| 5 | use nihav_core::codecs::*; |
| 6 | use nihav_codec_support::codecs::{MV, ZIGZAG}; |
| 7 | use nihav_codec_support::codecs::blockdsp; |
| 8 | use nihav_codec_support::codecs::h263::*; |
| 9 | use nihav_codec_support::codecs::h263::code::*; |
| 10 | use nihav_codec_support::codecs::h263::decoder::*; |
| 11 | use nihav_codec_support::codecs::h263::data::*; |
| 12 | |
| 13 | #[allow(dead_code)] |
| 14 | struct Tables { |
| 15 | intra_mcbpc_cb: Codebook<u8>, |
| 16 | inter_mcbpc_cb: Codebook<u8>, |
| 17 | cbpy_cb: Codebook<u8>, |
| 18 | rl_cb: Codebook<H263RLSym>, |
| 19 | aic_rl_cb: Codebook<H263RLSym>, |
| 20 | mv_cb: Codebook<u8>, |
| 21 | } |
| 22 | |
| 23 | struct VivoBlockDSP {} |
| 24 | |
| 25 | impl VivoBlockDSP { fn new() -> Self { Self {} } } |
| 26 | |
| 27 | #[allow(clippy::erasing_op)] |
| 28 | #[allow(clippy::identity_op)] |
| 29 | fn deblock_hor(buf: &mut [u8], off: usize, stride: usize, clip_tab: &[i16; 64]) { |
| 30 | for x in 0..8 { |
| 31 | let p1 = i16::from(buf[off - 2 * stride + x]); |
| 32 | let p0 = i16::from(buf[off - 1 * stride + x]); |
| 33 | let q0 = i16::from(buf[off + 0 * stride + x]); |
| 34 | let q1 = i16::from(buf[off + 1 * stride + x]); |
| 35 | let diff = (3 * (p1 - q1) + 8 * (q0 - p0)) >> 4; |
| 36 | if (diff != 0) && (diff > -32) && (diff < 32) { |
| 37 | let delta = clip_tab[(diff + 32) as usize]; |
| 38 | buf[off - 1 * stride + x] = (p0 + delta).max(0).min(255) as u8; |
| 39 | buf[off + 0 * stride + x] = (q0 - delta).max(0).min(255) as u8; |
| 40 | } |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | #[allow(clippy::identity_op)] |
| 45 | fn deblock_ver(buf: &mut [u8], off: usize, stride: usize, clip_tab: &[i16; 64]) { |
| 46 | for y in 0..8 { |
| 47 | let p1 = i16::from(buf[off - 2 + y * stride]); |
| 48 | let p0 = i16::from(buf[off - 1 + y * stride]); |
| 49 | let q0 = i16::from(buf[off + 0 + y * stride]); |
| 50 | let q1 = i16::from(buf[off + 1 + y * stride]); |
| 51 | let diff = (3 * (p1 - q1) + 8 * (q0 - p0)) >> 4; |
| 52 | if (diff != 0) && (diff > -32) && (diff < 32) { |
| 53 | let delta = clip_tab[(diff + 32) as usize]; |
| 54 | buf[off - 1 + y * stride] = (p0 + delta).max(0).min(255) as u8; |
| 55 | buf[off + y * stride] = (q0 - delta).max(0).min(255) as u8; |
| 56 | } |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | fn gen_clip_tab(clip_tab: &mut [i16; 64], q: u8) { |
| 61 | let q = i16::from(q); |
| 62 | *clip_tab = [0; 64]; |
| 63 | let lim = (q + 2) >> 1; |
| 64 | for i in 0..lim { |
| 65 | clip_tab[(32 - i) as usize] = -i; |
| 66 | clip_tab[(32 + i) as usize] = i; |
| 67 | } |
| 68 | for i in lim..q { |
| 69 | let val = q - i; |
| 70 | clip_tab[(32 - i) as usize] = -val; |
| 71 | clip_tab[(32 + i) as usize] = val; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | impl BlockDSP for VivoBlockDSP { |
| 76 | fn idct(&self, blk: &mut [i16; 64]) { |
| 77 | h263_annex_w_idct(blk); |
| 78 | } |
| 79 | fn copy_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mv: MV) { |
| 80 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; |
| 81 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); |
| 82 | |
| 83 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); |
| 84 | |
| 85 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos, ypos, mv.x >> 1, mv.y >> 1, 16, 16, 0, 1, mode, H263_INTERP_FUNCS); |
| 86 | 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); |
| 87 | blockdsp::copy_block(&mut dst, src.clone(), 2, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_FUNCS); |
| 88 | } |
| 89 | fn copy_blocks8x8(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mvs: &[MV; 4]) { |
| 90 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); |
| 91 | |
| 92 | for i in 0..4 { |
| 93 | let xadd = (i & 1) * 8; |
| 94 | let yadd = (i & 2) * 4; |
| 95 | let mode = ((mvs[i].x & 1) + (mvs[i].y & 1) * 2) as usize; |
| 96 | |
| 97 | 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); |
| 98 | } |
| 99 | |
| 100 | let sum_mv = mvs[0] + mvs[1] + mvs[2] + mvs[3]; |
| 101 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; |
| 102 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; |
| 103 | let mode = ((cmx & 1) + (cmy & 1) * 2) as usize; |
| 104 | for plane in 1..3 { |
| 105 | blockdsp::copy_block(&mut dst, src.clone(), plane, xpos >> 1, ypos >> 1, cmx >> 1, cmy >> 1, 8, 8, 0, 1, mode, H263_INTERP_FUNCS); |
| 106 | } |
| 107 | } |
| 108 | fn avg_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mv: MV) { |
| 109 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; |
| 110 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); |
| 111 | |
| 112 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); |
| 113 | |
| 114 | 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); |
| 115 | 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); |
| 116 | blockdsp::copy_block(&mut dst, src.clone(), 2, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_AVG_FUNCS); |
| 117 | } |
| 118 | fn avg_blocks8x8(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mvs: &[MV; 4]) { |
| 119 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); |
| 120 | |
| 121 | for i in 0..4 { |
| 122 | let xadd = (i & 1) * 8; |
| 123 | let yadd = (i & 2) * 4; |
| 124 | let mode = ((mvs[i].x & 1) + (mvs[i].y & 1) * 2) as usize; |
| 125 | |
| 126 | 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); |
| 127 | } |
| 128 | |
| 129 | let sum_mv = mvs[0] + mvs[1] + mvs[2] + mvs[3]; |
| 130 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; |
| 131 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; |
| 132 | let mode = ((cmx & 1) + (cmy & 1) * 2) as usize; |
| 133 | for plane in 1..3 { |
| 134 | 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); |
| 135 | } |
| 136 | } |
| 137 | fn filter_row(&self, buf: &mut NAVideoBuffer<u8>, mb_y: usize, mb_w: usize, cbpi: &CBPInfo) { |
| 138 | let ystride = buf.get_stride(0); |
| 139 | let ustride = buf.get_stride(1); |
| 140 | let vstride = buf.get_stride(2); |
| 141 | let yoff = buf.get_offset(0) + mb_y * 16 * ystride; |
| 142 | let uoff = buf.get_offset(1) + mb_y * 8 * ustride; |
| 143 | let voff = buf.get_offset(2) + mb_y * 8 * vstride; |
| 144 | let buf = buf.get_data_mut().unwrap(); |
| 145 | |
| 146 | let mut clip_tab = [0i16; 64]; |
| 147 | let mut last_q = 0; |
| 148 | let mut off = yoff; |
| 149 | for mb_x in 0..mb_w { |
| 150 | let coff = off; |
| 151 | let coded0 = cbpi.is_coded(mb_x, 0); |
| 152 | let coded1 = cbpi.is_coded(mb_x, 1); |
| 153 | let q = cbpi.get_q(mb_w + mb_x); |
| 154 | if q != last_q { |
| 155 | gen_clip_tab(&mut clip_tab, q); |
| 156 | last_q = q; |
| 157 | } |
| 158 | if mb_y != 0 { |
| 159 | if coded0 && cbpi.is_coded_top(mb_x, 0) { |
| 160 | deblock_hor(buf, ystride, coff, &clip_tab); |
| 161 | } |
| 162 | if coded1 && cbpi.is_coded_top(mb_x, 1) { |
| 163 | deblock_hor(buf, ystride, coff + 8, &clip_tab); |
| 164 | } |
| 165 | } |
| 166 | let coff = off + 8 * ystride; |
| 167 | if cbpi.is_coded(mb_x, 2) && coded0 { |
| 168 | deblock_hor(buf, ystride, coff, &clip_tab); |
| 169 | } |
| 170 | if cbpi.is_coded(mb_x, 3) && coded1 { |
| 171 | deblock_hor(buf, ystride, coff + 8, &clip_tab); |
| 172 | } |
| 173 | off += 16; |
| 174 | } |
| 175 | let mut leftt = false; |
| 176 | let mut leftc = false; |
| 177 | let mut off = yoff; |
| 178 | for mb_x in 0..mb_w { |
| 179 | let ctop0 = cbpi.is_coded_top(mb_x, 0); |
| 180 | let ctop1 = cbpi.is_coded_top(mb_x, 0); |
| 181 | let ccur0 = cbpi.is_coded(mb_x, 0); |
| 182 | let ccur1 = cbpi.is_coded(mb_x, 1); |
| 183 | let q = cbpi.get_q(mb_w + mb_x); |
| 184 | if q != last_q { |
| 185 | gen_clip_tab(&mut clip_tab, q); |
| 186 | last_q = q; |
| 187 | } |
| 188 | if mb_y != 0 { |
| 189 | let coff = off - 8 * ystride; |
| 190 | let qtop = cbpi.get_q(mb_x); |
| 191 | if qtop != last_q { |
| 192 | gen_clip_tab(&mut clip_tab, qtop); |
| 193 | last_q = qtop; |
| 194 | } |
| 195 | if leftt && ctop0 { |
| 196 | deblock_ver(buf, ystride, coff, &clip_tab); |
| 197 | } |
| 198 | if ctop0 && ctop1 { |
| 199 | deblock_ver(buf, ystride, coff + 8, &clip_tab); |
| 200 | } |
| 201 | } |
| 202 | if leftc && ccur0 { |
| 203 | deblock_ver(buf, ystride, off, &clip_tab); |
| 204 | } |
| 205 | if ccur0 && ccur1 { |
| 206 | deblock_ver(buf, ystride, off + 8, &clip_tab); |
| 207 | } |
| 208 | leftt = ctop1; |
| 209 | leftc = ccur1; |
| 210 | off += 16; |
| 211 | } |
| 212 | if mb_y != 0 { |
| 213 | for mb_x in 0..mb_w { |
| 214 | let ctu = cbpi.is_coded_top(mb_x, 4); |
| 215 | let ccu = cbpi.is_coded(mb_x, 4); |
| 216 | let ctv = cbpi.is_coded_top(mb_x, 5); |
| 217 | let ccv = cbpi.is_coded(mb_x, 5); |
| 218 | let q = cbpi.get_q(mb_w + mb_x); |
| 219 | if q != last_q { |
| 220 | gen_clip_tab(&mut clip_tab, q); |
| 221 | last_q = q; |
| 222 | } |
| 223 | if ctu && ccu { |
| 224 | deblock_hor(buf, ustride, uoff + mb_x * 8, &clip_tab); |
| 225 | } |
| 226 | if ctv && ccv { |
| 227 | deblock_hor(buf, vstride, voff + mb_x * 8, &clip_tab); |
| 228 | } |
| 229 | } |
| 230 | let mut leftu = false; |
| 231 | let mut leftv = false; |
| 232 | let offu = uoff - 8 * ustride; |
| 233 | let offv = voff - 8 * vstride; |
| 234 | for mb_x in 0..mb_w { |
| 235 | let ctu = cbpi.is_coded_top(mb_x, 4); |
| 236 | let ctv = cbpi.is_coded_top(mb_x, 5); |
| 237 | let qt = cbpi.get_q(mb_x); |
| 238 | if qt != last_q { |
| 239 | gen_clip_tab(&mut clip_tab, qt); |
| 240 | last_q = qt; |
| 241 | } |
| 242 | if leftu && ctu { |
| 243 | deblock_ver(buf, ustride, offu + mb_x * 8, &clip_tab); |
| 244 | } |
| 245 | if leftv && ctv { |
| 246 | deblock_ver(buf, vstride, offv + mb_x * 8, &clip_tab); |
| 247 | } |
| 248 | leftu = ctu; |
| 249 | leftv = ctv; |
| 250 | } |
| 251 | } |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | struct VivoDecoder { |
| 256 | info: NACodecInfoRef, |
| 257 | dec: H263BaseDecoder, |
| 258 | tables: Tables, |
| 259 | bdsp: VivoBlockDSP, |
| 260 | lastframe: Option<NABufferType>, |
| 261 | lastpts: Option<u64>, |
| 262 | width: usize, |
| 263 | height: usize, |
| 264 | } |
| 265 | |
| 266 | struct VivoBR<'a> { |
| 267 | br: BitReader<'a>, |
| 268 | tables: &'a Tables, |
| 269 | gob_no: usize, |
| 270 | mb_w: usize, |
| 271 | is_pb: bool, |
| 272 | is_ipb: bool, |
| 273 | ref_w: usize, |
| 274 | ref_h: usize, |
| 275 | aic: bool, |
| 276 | } |
| 277 | |
| 278 | fn check_marker<'a>(br: &mut BitReader<'a>) -> DecoderResult<()> { |
| 279 | let mark = br.read(1)?; |
| 280 | validate!(mark == 1); |
| 281 | Ok(()) |
| 282 | } |
| 283 | |
| 284 | impl<'a> VivoBR<'a> { |
| 285 | fn new(src: &'a [u8], tables: &'a Tables, ref_w: usize, ref_h: usize) -> Self { |
| 286 | VivoBR { |
| 287 | br: BitReader::new(src, BitReaderMode::BE), |
| 288 | tables, |
| 289 | gob_no: 0, |
| 290 | mb_w: 0, |
| 291 | is_pb: false, |
| 292 | is_ipb: false, |
| 293 | ref_w, ref_h, |
| 294 | aic: false, |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | fn decode_block(&mut self, quant: u8, intra: bool, coded: bool, blk: &mut [i16; 64], _plane_no: usize, acpred: ACPredMode) -> DecoderResult<()> { |
| 299 | let br = &mut self.br; |
| 300 | let mut idx = 0; |
| 301 | if !self.aic && intra { |
| 302 | let mut dc = br.read(8)? as i16; |
| 303 | if dc == 255 { dc = 128; } |
| 304 | blk[0] = dc << 3; |
| 305 | idx = 1; |
| 306 | } |
| 307 | if !coded { return Ok(()); } |
| 308 | let scan = match acpred { |
| 309 | ACPredMode::Hor => H263_SCAN_V, |
| 310 | ACPredMode::Ver => H263_SCAN_H, |
| 311 | _ => &ZIGZAG, |
| 312 | }; |
| 313 | |
| 314 | let rl_cb = if self.aic && intra { &self.tables.aic_rl_cb } else { &self.tables.rl_cb }; |
| 315 | let q = i16::from(quant * 2); |
| 316 | let q_add = if q == 0 || self.aic { 0i16 } else { (((q >> 1) - 1) | 1) as i16 }; |
| 317 | while idx < 64 { |
| 318 | let code = br.read_cb(rl_cb)?; |
| 319 | let run; |
| 320 | let mut level; |
| 321 | let last; |
| 322 | if !code.is_escape() { |
| 323 | run = code.get_run(); |
| 324 | level = code.get_level(); |
| 325 | last = code.is_last(); |
| 326 | if br.read_bool()? { level = -level; } |
| 327 | if !intra || idx != 0 { |
| 328 | if level >= 0 { |
| 329 | level = (level * q) + q_add; |
| 330 | } else { |
| 331 | level = (level * q) - q_add; |
| 332 | } |
| 333 | } |
| 334 | } else { |
| 335 | last = br.read_bool()?; |
| 336 | run = br.read(6)? as u8; |
| 337 | level = br.read_s(8)? as i16; |
| 338 | if level == -128 { |
| 339 | let low = br.read(5)? as i16; |
| 340 | let top = br.read_s(6)? as i16; |
| 341 | level = (top << 5) | low; |
| 342 | } |
| 343 | if !intra || idx != 0 { |
| 344 | if level >= 0 { |
| 345 | level = (level * q) + q_add; |
| 346 | } else { |
| 347 | level = (level * q) - q_add; |
| 348 | } |
| 349 | if level < -2048 { level = -2048; } |
| 350 | if level > 2047 { level = 2047; } |
| 351 | } |
| 352 | } |
| 353 | idx += run; |
| 354 | validate!(idx < 64); |
| 355 | let oidx = scan[idx as usize]; |
| 356 | blk[oidx] = level; |
| 357 | idx += 1; |
| 358 | if last { break; } |
| 359 | } |
| 360 | Ok(()) |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | fn decode_mv_component(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<i16> { |
| 365 | let code = i16::from(br.read_cb(mv_cb)?); |
| 366 | if code == 0 { return Ok(0) } |
| 367 | if !br.read_bool()? { |
| 368 | Ok(code) |
| 369 | } else { |
| 370 | Ok(-code) |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | fn decode_mv(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<MV> { |
| 375 | let xval = decode_mv_component(br, mv_cb)?; |
| 376 | let yval = decode_mv_component(br, mv_cb)?; |
| 377 | Ok(MV::new(xval, yval)) |
| 378 | } |
| 379 | |
| 380 | fn decode_b_info(br: &mut BitReader, is_pb: bool, is_ipb: bool, is_intra: bool) -> DecoderResult<BBlockInfo> { |
| 381 | if is_pb { // as improved pb |
| 382 | if is_ipb { |
| 383 | let pb_mv_add = if is_intra { 1 } else { 0 }; |
| 384 | if br.read_bool()?{ |
| 385 | if br.read_bool()? { |
| 386 | let pb_mv_count = 1 - (br.read(1)? as usize); |
| 387 | let cbpb = br.read(6)? as u8; |
| 388 | Ok(BBlockInfo::new(true, cbpb, pb_mv_count + pb_mv_add, pb_mv_count == 1)) |
| 389 | } else { |
| 390 | Ok(BBlockInfo::new(true, 0, 1 + pb_mv_add, true)) |
| 391 | } |
| 392 | } else { |
| 393 | Ok(BBlockInfo::new(true, 0, pb_mv_add, false)) |
| 394 | } |
| 395 | } else { |
| 396 | let mvdb = br.read_bool()?; |
| 397 | let cbpb = if mvdb && br.read_bool()? { br.read(6)? as u8 } else { 0 }; |
| 398 | Ok(BBlockInfo::new(true, cbpb, if mvdb { 1 } else { 0 }, false)) |
| 399 | } |
| 400 | } else { |
| 401 | Ok(BBlockInfo::new(false, 0, 0, false)) |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | impl<'a> BlockDecoder for VivoBR<'a> { |
| 406 | |
| 407 | #[allow(unused_variables)] |
| 408 | #[allow(clippy::unreadable_literal)] |
| 409 | fn decode_pichdr(&mut self) -> DecoderResult<PicInfo> { |
| 410 | let br = &mut self.br; |
| 411 | let syncw = br.read(22)?; |
| 412 | validate!(syncw == 0x000020); |
| 413 | let tr = (br.read(8)? << 8) as u16; |
| 414 | check_marker(br)?; |
| 415 | let id = br.read(1)?; |
| 416 | validate!(id == 0); |
| 417 | br.read(1)?; // split screen indicator |
| 418 | br.read(1)?; // document camera indicator |
| 419 | br.read(1)?; // freeze picture release |
| 420 | let mut sfmt = br.read(3)?; |
| 421 | validate!(sfmt != 0b000); |
| 422 | let is_intra = !br.read_bool()?; |
| 423 | let umv = br.read_bool()?; |
| 424 | br.read(1)?; // syntax arithmetic coding |
| 425 | let apm = br.read_bool()?; |
| 426 | self.is_pb = br.read_bool()?; |
| 427 | let deblock; |
| 428 | let pbplus; |
| 429 | let aic; |
| 430 | if sfmt == 0b110 { |
| 431 | sfmt = br.read(3)?; |
| 432 | validate!(sfmt != 0b000 && sfmt != 0b110); |
| 433 | aic = br.read_bool()?; |
| 434 | br.read(1)?; // umv mode |
| 435 | deblock = br.read_bool()?; |
| 436 | br.read(3)?; // unknown flags |
| 437 | pbplus = br.read_bool()?; |
| 438 | br.read(4)?; // unknown flags |
| 439 | } else { |
| 440 | aic = false; |
| 441 | deblock = false; |
| 442 | pbplus = false; |
| 443 | } |
| 444 | self.is_ipb = pbplus; |
| 445 | let (w, h) = match sfmt { |
| 446 | 0b001 => ( 64, 48), |
| 447 | 0b011 => ( 88, 72), |
| 448 | 0b010 => (176, 144), |
| 449 | 0b100 => (352, 288), |
| 450 | 0b101 => (704, 576), |
| 451 | 0b111 => { |
| 452 | validate!((self.ref_w != 0) && (self.ref_h != 0)); |
| 453 | ((self.ref_w + 15) & !15, (self.ref_h + 15) & !15) |
| 454 | }, |
| 455 | _ => return Err(DecoderError::InvalidData), |
| 456 | }; |
| 457 | let quant = br.read(5)?; |
| 458 | let cpm = br.read_bool()?; |
| 459 | validate!(!cpm); |
| 460 | |
| 461 | let pbinfo; |
| 462 | if self.is_pb { |
| 463 | let trb = br.read(3)?; |
| 464 | let dbquant = br.read(2)?; |
| 465 | pbinfo = Some(PBInfo::new(trb as u8, dbquant as u8, pbplus)); |
| 466 | } else { |
| 467 | pbinfo = None; |
| 468 | } |
| 469 | while br.read_bool()? { // skip PEI |
| 470 | br.read(8)?; |
| 471 | } |
| 472 | self.gob_no = 0; |
| 473 | self.mb_w = (w + 15) >> 4; |
| 474 | self.aic = aic; |
| 475 | |
| 476 | let ftype = if is_intra { Type::I } else { Type::P }; |
| 477 | let plusinfo = Some(PlusInfo::new(aic, deblock, false, false)); |
| 478 | let mvmode = if umv { MVMode::UMV } else { MVMode::Old }; |
| 479 | let picinfo = PicInfo::new(w, h, ftype, mvmode, umv, apm, quant as u8, tr, pbinfo, plusinfo); |
| 480 | Ok(picinfo) |
| 481 | } |
| 482 | |
| 483 | #[allow(unused_variables)] |
| 484 | fn decode_slice_header(&mut self, info: &PicInfo) -> DecoderResult<SliceInfo> { |
| 485 | let br = &mut self.br; |
| 486 | let gbsc = br.read(17)?; |
| 487 | validate!(gbsc == 1); |
| 488 | let gn = br.read(5)?; |
| 489 | let gfid = br.read(2)?; |
| 490 | let gquant = br.read(5)?; |
| 491 | let ret = SliceInfo::new_gob(0, self.gob_no, gquant as u8); |
| 492 | self.gob_no += 1; |
| 493 | Ok(ret) |
| 494 | } |
| 495 | |
| 496 | #[allow(unused_variables)] |
| 497 | fn decode_block_header(&mut self, info: &PicInfo, slice: &SliceInfo, sstate: &SliceState) -> DecoderResult<BlockInfo> { |
| 498 | let br = &mut self.br; |
| 499 | let mut q = slice.get_quant(); |
| 500 | match info.get_mode() { |
| 501 | Type::I => { |
| 502 | let mut cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; |
| 503 | while cbpc == 8 { cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; } |
| 504 | let mut acpred = ACPredMode::None; |
| 505 | if let Some(ref pi) = info.plusinfo { |
| 506 | if pi.aic { |
| 507 | let acpp = br.read_bool()?; |
| 508 | acpred = ACPredMode::DC; |
| 509 | if acpp { |
| 510 | acpred = if !br.read_bool()? { ACPredMode::Hor } else { ACPredMode::Ver }; |
| 511 | } |
| 512 | } |
| 513 | } |
| 514 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
| 515 | let cbp = (cbpy << 2) | (cbpc & 3); |
| 516 | let dquant = (cbpc & 4) != 0; |
| 517 | if dquant { |
| 518 | let idx = br.read(2)? as usize; |
| 519 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; |
| 520 | } |
| 521 | let mut binfo = BlockInfo::new(Type::I, cbp, q); |
| 522 | binfo.set_acpred(acpred); |
| 523 | Ok(binfo) |
| 524 | }, |
| 525 | Type::P => { |
| 526 | if br.read_bool()? { return Ok(BlockInfo::new(Type::Skip, 0, info.get_quant())); } |
| 527 | let mut cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; |
| 528 | while cbpc == 20 { cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; } |
| 529 | let is_intra = (cbpc & 0x04) != 0; |
| 530 | let dquant = (cbpc & 0x08) != 0; |
| 531 | let is_4x4 = (cbpc & 0x10) != 0; |
| 532 | if is_intra { |
| 533 | let mut acpred = ACPredMode::None; |
| 534 | if let Some(ref pi) = info.plusinfo { |
| 535 | if pi.aic { |
| 536 | let acpp = br.read_bool()?; |
| 537 | acpred = ACPredMode::DC; |
| 538 | if acpp { |
| 539 | acpred = if !br.read_bool()? { ACPredMode::Hor } else { ACPredMode::Ver }; |
| 540 | } |
| 541 | } |
| 542 | } |
| 543 | let mut mvec: Vec<MV> = Vec::new(); |
| 544 | let bbinfo = decode_b_info(br, self.is_pb, self.is_ipb, true)?; |
| 545 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
| 546 | let cbp = (cbpy << 2) | (cbpc & 3); |
| 547 | if dquant { |
| 548 | let idx = br.read(2)? as usize; |
| 549 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; |
| 550 | } |
| 551 | let mut binfo = BlockInfo::new(Type::I, cbp, q); |
| 552 | binfo.set_bpart(bbinfo); |
| 553 | binfo.set_acpred(acpred); |
| 554 | if self.is_pb { |
| 555 | for _ in 0..bbinfo.get_num_mv() { |
| 556 | mvec.push(decode_mv(br, &self.tables.mv_cb)?); |
| 557 | } |
| 558 | binfo.set_b_mv(mvec.as_slice()); |
| 559 | } |
| 560 | return Ok(binfo); |
| 561 | } |
| 562 | |
| 563 | let bbinfo = decode_b_info(br, self.is_pb, self.is_ipb, false)?; |
| 564 | let mut cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
| 565 | // if /* !aiv && */(cbpc & 3) != 3 { |
| 566 | cbpy ^= 0xF; |
| 567 | // } |
| 568 | let cbp = (cbpy << 2) | (cbpc & 3); |
| 569 | if dquant { |
| 570 | let idx = br.read(2)? as usize; |
| 571 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; |
| 572 | } |
| 573 | let mut binfo = BlockInfo::new(Type::P, cbp, q); |
| 574 | binfo.set_bpart(bbinfo); |
| 575 | if !is_4x4 { |
| 576 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; |
| 577 | binfo.set_mv(&mvec); |
| 578 | } else { |
| 579 | let mvec: [MV; 4] = [ |
| 580 | decode_mv(br, &self.tables.mv_cb)?, |
| 581 | decode_mv(br, &self.tables.mv_cb)?, |
| 582 | decode_mv(br, &self.tables.mv_cb)?, |
| 583 | decode_mv(br, &self.tables.mv_cb)? |
| 584 | ]; |
| 585 | binfo.set_mv(&mvec); |
| 586 | } |
| 587 | if self.is_pb { |
| 588 | let mut mvec: Vec<MV> = Vec::with_capacity(bbinfo.get_num_mv()); |
| 589 | for _ in 0..bbinfo.get_num_mv() { |
| 590 | let mv = decode_mv(br, &self.tables.mv_cb)?; |
| 591 | mvec.push(mv); |
| 592 | } |
| 593 | binfo.set_b_mv(mvec.as_slice()); |
| 594 | } |
| 595 | Ok(binfo) |
| 596 | }, |
| 597 | _ => Err(DecoderError::InvalidData), |
| 598 | } |
| 599 | } |
| 600 | |
| 601 | #[allow(unused_variables)] |
| 602 | fn decode_block_intra(&mut self, info: &BlockInfo, _sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { |
| 603 | self.decode_block(quant, true, coded, blk, if no < 4 { 0 } else { no - 3 }, info.get_acpred()) |
| 604 | } |
| 605 | |
| 606 | #[allow(unused_variables)] |
| 607 | fn decode_block_inter(&mut self, info: &BlockInfo, _sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { |
| 608 | self.decode_block(quant, false, coded, blk, if no < 4 { 0 } else { no - 3 }, ACPredMode::None) |
| 609 | } |
| 610 | |
| 611 | fn is_slice_end(&mut self) -> bool { self.br.peek(16) == 0 } |
| 612 | } |
| 613 | |
| 614 | impl VivoDecoder { |
| 615 | fn new() -> Self { |
| 616 | let mut coderead = H263ShortCodeReader::new(H263_INTRA_MCBPC); |
| 617 | let intra_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); |
| 618 | let mut coderead = H263ShortCodeReader::new(H263_INTER_MCBPC); |
| 619 | let inter_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); |
| 620 | let mut coderead = H263ShortCodeReader::new(H263_CBPY); |
| 621 | let cbpy_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); |
| 622 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES); |
| 623 | let rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); |
| 624 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES_AIC); |
| 625 | let aic_rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); |
| 626 | let mut coderead = H263ShortCodeReader::new(H263_MV); |
| 627 | let mv_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); |
| 628 | let tables = Tables { |
| 629 | intra_mcbpc_cb, |
| 630 | inter_mcbpc_cb, |
| 631 | cbpy_cb, |
| 632 | rl_cb, |
| 633 | aic_rl_cb, |
| 634 | mv_cb, |
| 635 | }; |
| 636 | |
| 637 | VivoDecoder{ |
| 638 | info: NACodecInfo::new_dummy(), |
| 639 | dec: H263BaseDecoder::new_with_opts(H263DEC_OPT_SLICE_RESET | H263DEC_OPT_USES_GOB | H263DEC_OPT_PRED_QUANT), |
| 640 | tables, |
| 641 | bdsp: VivoBlockDSP::new(), |
| 642 | lastframe: None, |
| 643 | lastpts: None, |
| 644 | width: 0, |
| 645 | height: 0, |
| 646 | } |
| 647 | } |
| 648 | } |
| 649 | |
| 650 | impl NADecoder for VivoDecoder { |
| 651 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { |
| 652 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { |
| 653 | let w = vinfo.get_width(); |
| 654 | let h = vinfo.get_height(); |
| 655 | let fmt = formats::YUV420_FORMAT; |
| 656 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, fmt)); |
| 657 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref(); |
| 658 | self.width = w; |
| 659 | self.height = h; |
| 660 | Ok(()) |
| 661 | } else { |
| 662 | Err(DecoderError::InvalidData) |
| 663 | } |
| 664 | } |
| 665 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { |
| 666 | let src = pkt.get_buffer(); |
| 667 | |
| 668 | if src.len() == 0 { |
| 669 | let buftype; |
| 670 | let ftype; |
| 671 | if self.lastframe.is_none() { |
| 672 | buftype = NABufferType::None; |
| 673 | ftype = FrameType::Skip; |
| 674 | } else { |
| 675 | let mut buf = None; |
| 676 | std::mem::swap(&mut self.lastframe, &mut buf); |
| 677 | buftype = buf.unwrap(); |
| 678 | ftype = FrameType::B; |
| 679 | } |
| 680 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), buftype); |
| 681 | frm.set_keyframe(false); |
| 682 | frm.set_frame_type(ftype); |
| 683 | if self.lastpts.is_some() { |
| 684 | frm.set_pts(self.lastpts); |
| 685 | self.lastpts = None; |
| 686 | } |
| 687 | return Ok(frm.into_ref()); |
| 688 | } |
| 689 | let mut ibr = VivoBR::new(&src, &self.tables, self.width, self.height); |
| 690 | |
| 691 | let bufinfo = self.dec.parse_frame(&mut ibr, &self.bdsp)?; |
| 692 | |
| 693 | let mut cur_pts = pkt.get_pts(); |
| 694 | if !self.dec.is_intra() { |
| 695 | let bret = self.dec.get_bframe(&self.bdsp); |
| 696 | if let Ok(b_buf) = bret { |
| 697 | self.lastframe = Some(b_buf); |
| 698 | self.lastpts = pkt.get_pts(); |
| 699 | if let Some(pts) = pkt.get_pts() { |
| 700 | cur_pts = Some(pts + 1); |
| 701 | } |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo); |
| 706 | frm.set_keyframe(self.dec.is_intra()); |
| 707 | frm.set_frame_type(if self.dec.is_intra() { FrameType::I } else { FrameType::P }); |
| 708 | frm.set_pts(cur_pts); |
| 709 | Ok(frm.into_ref()) |
| 710 | } |
| 711 | fn flush(&mut self) { |
| 712 | self.dec.flush(); |
| 713 | } |
| 714 | } |
| 715 | |
| 716 | impl NAOptionHandler for VivoDecoder { |
| 717 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 718 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 719 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 720 | } |
| 721 | |
| 722 | |
| 723 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { |
| 724 | Box::new(VivoDecoder::new()) |
| 725 | } |
| 726 | |
| 727 | #[cfg(test)] |
| 728 | mod test { |
| 729 | use nihav_core::codecs::RegisteredDecoders; |
| 730 | use nihav_core::demuxers::RegisteredDemuxers; |
| 731 | use nihav_codec_support::test::dec_video::*; |
| 732 | use crate::vivo_register_all_decoders; |
| 733 | use crate::vivo_register_all_demuxers; |
| 734 | #[test] |
| 735 | fn test_vivo1() { |
| 736 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 737 | vivo_register_all_demuxers(&mut dmx_reg); |
| 738 | let mut dec_reg = RegisteredDecoders::new(); |
| 739 | vivo_register_all_decoders(&mut dec_reg); |
| 740 | |
| 741 | test_file_decoding("vivo", "assets/Misc/gr_al.viv", Some(16), true, false, Some("viv1"), &dmx_reg, &dec_reg); |
| 742 | // test_decoding("vivo", "vivo1", "assets/Misc/gr_al.viv", Some(16), |
| 743 | // &dmx_reg, &dec_reg, ExpectedTestResult::GenerateMD5Frames)); |
| 744 | } |
| 745 | #[test] |
| 746 | fn test_vivo2() { |
| 747 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 748 | vivo_register_all_demuxers(&mut dmx_reg); |
| 749 | let mut dec_reg = RegisteredDecoders::new(); |
| 750 | vivo_register_all_decoders(&mut dec_reg); |
| 751 | |
| 752 | test_file_decoding("vivo", "assets/Misc/02-KimagureOrangeRoad.viv", Some(50), true, false, Some("viv2"), &dmx_reg, &dec_reg); |
| 753 | panic!("end"); |
| 754 | // test_decoding("vivo", "vivo2", "assets/Misc/greetings.viv", Some(16), |
| 755 | // &dmx_reg, &dec_reg, ExpectedTestResult::GenerateMD5Frames)); |
| 756 | } |
| 757 | } |