| 1 | use nihav_core::codecs::*; |
| 2 | use nihav_core::io::byteio::*; |
| 3 | use std::str::FromStr; |
| 4 | |
| 5 | const ADAPT_TABLE: [i32; 16] = [ |
| 6 | 230, 230, 230, 230, 307, 409, 512, 614, |
| 7 | 768, 614, 512, 409, 307, 230, 230, 230 |
| 8 | ]; |
| 9 | const ADAPT_COEFFS: [[i32; 2]; 7] = [ |
| 10 | [ 256, 0 ], [ 512, -256 ], [ 0, 0 ], [ 192, 64 ], |
| 11 | [ 240, 0 ], [ 460, -208 ], [ 392, -232 ] |
| 12 | ]; |
| 13 | |
| 14 | #[derive(Default)] |
| 15 | struct Predictor { |
| 16 | sample1: i32, |
| 17 | sample2: i32, |
| 18 | delta: i32, |
| 19 | coef1: i32, |
| 20 | coef2: i32, |
| 21 | } |
| 22 | |
| 23 | impl Predictor { |
| 24 | fn expand_nibble(&mut self, nibble: u8) -> i16 { |
| 25 | let mul = if (nibble & 8) == 0 { i32::from(nibble) } else { i32::from(nibble) - 16 }; |
| 26 | let pred = self.calc_pred() + self.delta.wrapping_mul(mul); |
| 27 | self.update(pred.max(-0x8000).min(0x7FFF)); |
| 28 | self.delta = (ADAPT_TABLE[nibble as usize].wrapping_mul(self.delta) >> 8).max(16); |
| 29 | self.sample1 as i16 |
| 30 | } |
| 31 | fn calc_pred(&self) -> i32 { |
| 32 | self.sample1.wrapping_mul(self.coef1).wrapping_add(self.sample2.wrapping_mul(self.coef2)) >> 8 |
| 33 | } |
| 34 | fn update(&mut self, new_samp: i32) { |
| 35 | self.sample2 = self.sample1; |
| 36 | self.sample1 = new_samp; |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | struct MSADPCMDecoder { |
| 41 | ainfo: NAAudioInfo, |
| 42 | chmap: NAChannelMap, |
| 43 | adapt_coeffs: Vec<[i32; 2]>, |
| 44 | block_len: usize, |
| 45 | block_samps: usize, |
| 46 | } |
| 47 | |
| 48 | impl MSADPCMDecoder { |
| 49 | fn new() -> Self { |
| 50 | Self { |
| 51 | ainfo: NAAudioInfo::new(0, 1, SND_S16P_FORMAT, 0), |
| 52 | chmap: NAChannelMap::new(), |
| 53 | adapt_coeffs: Vec::with_capacity(7), |
| 54 | block_len: 0, |
| 55 | block_samps: 0, |
| 56 | } |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | impl NADecoder for MSADPCMDecoder { |
| 61 | #[allow(clippy::int_plus_one)] |
| 62 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { |
| 63 | if let NACodecTypeInfo::Audio(ainfo) = info.get_properties() { |
| 64 | self.block_len = ainfo.get_block_len(); |
| 65 | let channels = ainfo.get_channels() as usize; |
| 66 | validate!(channels == 2 || channels == 1); |
| 67 | validate!(self.block_len >= 7 * channels + 1); |
| 68 | self.block_samps = (self.block_len / channels - 7) * 2 + 2; |
| 69 | self.ainfo = NAAudioInfo::new(ainfo.get_sample_rate(), channels as u8, SND_S16P_FORMAT, self.block_samps); |
| 70 | self.chmap = NAChannelMap::from_str(if channels == 1 { "C" } else { "L,R" }).unwrap(); |
| 71 | self.adapt_coeffs.truncate(0); |
| 72 | if let Some(ref buf) = info.get_extradata() { |
| 73 | validate!(buf.len() >= 6); |
| 74 | validate!((buf.len() & 3) == 0); |
| 75 | let mut mr = MemoryReader::new_read(buf.as_slice()); |
| 76 | let mut br = ByteReader::new(&mut mr); |
| 77 | let _smth = br.read_u16le()?; |
| 78 | let ncoeffs = br.read_u16le()? as usize; |
| 79 | validate!(buf.len() == ncoeffs * 4 + 4); |
| 80 | |
| 81 | for _ in 0..ncoeffs { |
| 82 | let pair = [ |
| 83 | i32::from(br.read_u16le()? as i16), |
| 84 | i32::from(br.read_u16le()? as i16)]; |
| 85 | self.adapt_coeffs.push(pair); |
| 86 | } |
| 87 | } else { |
| 88 | self.adapt_coeffs.extend_from_slice(&ADAPT_COEFFS); |
| 89 | } |
| 90 | Ok(()) |
| 91 | } else { |
| 92 | Err(DecoderError::InvalidData) |
| 93 | } |
| 94 | } |
| 95 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { |
| 96 | let info = pkt.get_stream().get_info(); |
| 97 | if let NACodecTypeInfo::Audio(_) = info.get_properties() { |
| 98 | let pktbuf = pkt.get_buffer(); |
| 99 | let channels = self.chmap.num_channels(); |
| 100 | validate!(!pktbuf.is_empty() && (pktbuf.len() % self.block_len) == 0); |
| 101 | let nblocks = pktbuf.len() / self.block_len; |
| 102 | let nsamples = nblocks * self.block_samps; |
| 103 | let abuf = alloc_audio_buffer(self.ainfo, nsamples, self.chmap.clone())?; |
| 104 | let mut adata = abuf.get_abuf_i16().unwrap(); |
| 105 | let mut off = [adata.get_offset(0), adata.get_offset(1)]; |
| 106 | let dst = adata.get_data_mut().unwrap(); |
| 107 | |
| 108 | let mut pred = [Predictor::default(), Predictor::default()]; |
| 109 | |
| 110 | for blk in pktbuf.chunks(self.block_len) { |
| 111 | let mut mr = MemoryReader::new_read(blk); |
| 112 | let mut br = ByteReader::new(&mut mr); |
| 113 | for ch in 0..channels { |
| 114 | let coef_idx = br.read_byte()? as usize; |
| 115 | validate!(coef_idx < self.adapt_coeffs.len()); |
| 116 | pred[ch].coef1 = self.adapt_coeffs[coef_idx][0]; |
| 117 | pred[ch].coef2 = self.adapt_coeffs[coef_idx][1]; |
| 118 | } |
| 119 | for ch in 0..channels { |
| 120 | pred[ch].delta = i32::from(br.read_u16le()?); |
| 121 | } |
| 122 | for ch in 0..channels { |
| 123 | let samp = br.read_u16le()? as i16; |
| 124 | pred[ch].sample2 = i32::from(samp); |
| 125 | } |
| 126 | for ch in 0..channels { |
| 127 | let samp = br.read_u16le()? as i16; |
| 128 | pred[ch].sample1 = i32::from(samp); |
| 129 | } |
| 130 | for ch in 0..channels { |
| 131 | dst[off[ch]] = pred[ch].sample2 as i16; |
| 132 | dst[off[ch] + 1] = pred[ch].sample1 as i16; |
| 133 | off[ch] += 2; |
| 134 | } |
| 135 | if channels == 1 { |
| 136 | while br.left() > 0 { |
| 137 | let idx = br.read_byte()?; |
| 138 | dst[off[0]] = pred[0].expand_nibble(idx >> 4); |
| 139 | off[0] += 1; |
| 140 | dst[off[0]] = pred[0].expand_nibble(idx & 0xF); |
| 141 | off[0] += 1; |
| 142 | } |
| 143 | } else { |
| 144 | while br.left() > 0 { |
| 145 | let idx = br.read_byte()?; |
| 146 | dst[off[0]] = pred[0].expand_nibble(idx >> 4); |
| 147 | off[0] += 1; |
| 148 | dst[off[1]] = pred[1].expand_nibble(idx & 0xF); |
| 149 | off[1] += 1; |
| 150 | } |
| 151 | } |
| 152 | } |
| 153 | let mut frm = NAFrame::new_from_pkt(pkt, info.replace_info(NACodecTypeInfo::Audio(self.ainfo)), abuf); |
| 154 | frm.set_duration(Some(nsamples as u64)); |
| 155 | frm.set_keyframe(false); |
| 156 | Ok(frm.into_ref()) |
| 157 | } else { |
| 158 | Err(DecoderError::InvalidData) |
| 159 | } |
| 160 | } |
| 161 | fn flush(&mut self) { |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | impl NAOptionHandler for MSADPCMDecoder { |
| 166 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 167 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 168 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 169 | } |
| 170 | |
| 171 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { |
| 172 | Box::new(MSADPCMDecoder::new()) |
| 173 | } |
| 174 | |
| 175 | #[derive(Default)] |
| 176 | struct MSADPCMEncoder { |
| 177 | stream: Option<NAStreamRef>, |
| 178 | samples: Vec<i16>, |
| 179 | block_len: usize, |
| 180 | channels: usize, |
| 181 | flush: bool, |
| 182 | srate: u32, |
| 183 | } |
| 184 | |
| 185 | const DEFAULT_BLOCK_LEN: usize = 256; |
| 186 | |
| 187 | impl MSADPCMEncoder { |
| 188 | fn new() -> Self { Self::default() } |
| 189 | fn encode_packet(&mut self) -> EncoderResult<NAPacket> { |
| 190 | if self.samples.is_empty() { |
| 191 | return Err(EncoderError::TryAgain); |
| 192 | } |
| 193 | let len = (self.samples.len() / self.channels).min(self.block_len); |
| 194 | if len < self.block_len && !self.flush { |
| 195 | return Err(EncoderError::TryAgain); |
| 196 | } |
| 197 | if len < 2 { |
| 198 | self.flush = false; |
| 199 | return Err(EncoderError::TryAgain); |
| 200 | } |
| 201 | |
| 202 | let mut dbuf = vec![0u8; Self::calc_block_size(len, self.channels)]; |
| 203 | let mut mw = MemoryWriter::new_write(dbuf.as_mut_slice()); |
| 204 | let mut bw = ByteWriter::new(&mut mw); |
| 205 | |
| 206 | let mut best_idx = [0usize; 2]; |
| 207 | for ch in 0..self.channels { |
| 208 | let mut best_dist = std::i64::MAX; |
| 209 | for i in 0..ADAPT_COEFFS.len() { |
| 210 | let dist = self.calc_dist(ch, i, len); |
| 211 | if dist < best_dist { |
| 212 | best_dist = dist; |
| 213 | best_idx[ch] = i; |
| 214 | } |
| 215 | } |
| 216 | bw.write_byte(best_idx[ch] as u8)?; |
| 217 | } |
| 218 | let mut dec = [Predictor::default(), Predictor::default()]; |
| 219 | for ch in 0..self.channels { |
| 220 | dec[ch].sample1 = i32::from(self.samples[ch + self.channels]); |
| 221 | dec[ch].sample2 = i32::from(self.samples[ch]); |
| 222 | dec[ch].coef1 = ADAPT_COEFFS[best_idx[ch]][0]; |
| 223 | dec[ch].coef2 = ADAPT_COEFFS[best_idx[ch]][1]; |
| 224 | if len > 2 { |
| 225 | let pred = dec[ch].calc_pred(); |
| 226 | dec[ch].delta = ((i32::from(self.samples[ch + self.channels * 2]) - pred).abs() / 4).max(16); |
| 227 | } else { |
| 228 | dec[ch].delta = 16; |
| 229 | } |
| 230 | } |
| 231 | for ch in 0..self.channels { |
| 232 | bw.write_u16le(dec[ch].delta as u16)?; |
| 233 | } |
| 234 | for ch in 0..self.channels { |
| 235 | bw.write_u16le(dec[ch].sample1 as u16)?; |
| 236 | } |
| 237 | for ch in 0..self.channels { |
| 238 | bw.write_u16le(dec[ch].sample2 as u16)?; |
| 239 | } |
| 240 | if self.channels == 1 { |
| 241 | for samps in self.samples.chunks(2).skip(1).take(len/2 - 1) { |
| 242 | let diff = i32::from(samps[0]) - dec[0].calc_pred(); |
| 243 | let nib0 = Self::calculate_mul(dec[0].delta, diff); |
| 244 | dec[0].expand_nibble(nib0); |
| 245 | let diff = i32::from(samps[1]) - dec[0].calc_pred(); |
| 246 | let nib1 = Self::calculate_mul(dec[0].delta, diff); |
| 247 | dec[0].expand_nibble(nib1); |
| 248 | bw.write_byte(nib0 * 16 + nib1)?; |
| 249 | } |
| 250 | } else { |
| 251 | for samps in self.samples.chunks(2).skip(2).take(len - 2) { |
| 252 | let diff = i32::from(samps[0]) - dec[0].calc_pred(); |
| 253 | let nib0 = Self::calculate_mul(dec[0].delta, diff); |
| 254 | dec[0].expand_nibble(nib0); |
| 255 | let diff = i32::from(samps[1]) - dec[1].calc_pred(); |
| 256 | let nib1 = Self::calculate_mul(dec[1].delta, diff); |
| 257 | dec[1].expand_nibble(nib1); |
| 258 | bw.write_byte(nib0 * 16 + nib1)?; |
| 259 | } |
| 260 | } |
| 261 | self.samples.drain(..len * self.channels); |
| 262 | drop(bw); |
| 263 | let ts = NATimeInfo::new(None, None, Some(1), 1, self.srate); |
| 264 | Ok(NAPacket::new(self.stream.clone().unwrap(), ts, true, dbuf)) |
| 265 | } |
| 266 | fn calc_dist(&self, ch: usize, idx: usize, len: usize) -> i64 { |
| 267 | let mut dist = 0; |
| 268 | let mut dec = Predictor { |
| 269 | sample2: i32::from(self.samples[ch]), |
| 270 | sample1: i32::from(self.samples[ch + self.channels]), |
| 271 | coef1: ADAPT_COEFFS[idx][0], |
| 272 | coef2: ADAPT_COEFFS[idx][1], |
| 273 | delta: 16, |
| 274 | }; |
| 275 | if self.channels == 1 { |
| 276 | for samp in self.samples.iter().skip(2).take(len - 2) { |
| 277 | let pred = dec.calc_pred(); |
| 278 | dec.update(pred); |
| 279 | let diff = i64::from(*samp) - i64::from(pred); |
| 280 | dist += diff * diff; |
| 281 | } |
| 282 | } else { |
| 283 | for samp in self.samples.chunks(2).skip(2).take(len - 2) { |
| 284 | let pred = dec.calc_pred(); |
| 285 | dec.update(pred); |
| 286 | let diff = i64::from(samp[ch]) - i64::from(pred); |
| 287 | dist += diff * diff; |
| 288 | } |
| 289 | } |
| 290 | dist |
| 291 | } |
| 292 | fn calculate_mul(delta: i32, diff: i32) -> u8 { |
| 293 | ((diff / delta).max(-8).min(7) & 0xF) as u8 |
| 294 | } |
| 295 | fn calc_block_size(nsamps: usize, channels: usize) -> usize { |
| 296 | (nsamps - 2) * channels / 2 + 7 * channels |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | impl NAEncoder for MSADPCMEncoder { |
| 301 | fn negotiate_format(&self, encinfo: &EncodeParameters) -> EncoderResult<EncodeParameters> { |
| 302 | match encinfo.format { |
| 303 | NACodecTypeInfo::None => { |
| 304 | let mut ofmt = EncodeParameters::default(); |
| 305 | ofmt.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 1, SND_S16_FORMAT, DEFAULT_BLOCK_LEN)); |
| 306 | Ok(ofmt) |
| 307 | }, |
| 308 | NACodecTypeInfo::Video(_) => Err(EncoderError::FormatError), |
| 309 | NACodecTypeInfo::Audio(ainfo) => { |
| 310 | let mut outinfo = ainfo; |
| 311 | outinfo.channels = outinfo.channels.min(2); |
| 312 | if outinfo.format != SND_S16P_FORMAT && outinfo.format != SND_S16_FORMAT { |
| 313 | outinfo.format = SND_S16_FORMAT; |
| 314 | } |
| 315 | if outinfo.block_len == 0 { |
| 316 | outinfo.block_len = DEFAULT_BLOCK_LEN; |
| 317 | } |
| 318 | if outinfo.block_len < 2 { |
| 319 | outinfo.block_len = 2; |
| 320 | } |
| 321 | if (outinfo.channels == 1) && ((outinfo.block_len & 1) == 1) { |
| 322 | outinfo.block_len += 1; |
| 323 | } |
| 324 | let mut ofmt = *encinfo; |
| 325 | ofmt.format = NACodecTypeInfo::Audio(outinfo); |
| 326 | Ok(ofmt) |
| 327 | } |
| 328 | } |
| 329 | } |
| 330 | fn init(&mut self, stream_id: u32, encinfo: EncodeParameters) -> EncoderResult<NAStreamRef> { |
| 331 | match encinfo.format { |
| 332 | NACodecTypeInfo::None => Err(EncoderError::FormatError), |
| 333 | NACodecTypeInfo::Video(_) => Err(EncoderError::FormatError), |
| 334 | NACodecTypeInfo::Audio(ainfo) => { |
| 335 | if ainfo.format != SND_S16P_FORMAT && ainfo.format != SND_S16_FORMAT { |
| 336 | return Err(EncoderError::FormatError); |
| 337 | } |
| 338 | if ainfo.channels != 1 && ainfo.channels != 2 { |
| 339 | return Err(EncoderError::FormatError); |
| 340 | } |
| 341 | if ainfo.block_len < 2 || ((ainfo.block_len * (ainfo.channels as usize)) & 1) != 0 { |
| 342 | return Err(EncoderError::FormatError); |
| 343 | } |
| 344 | self.channels = ainfo.channels as usize; |
| 345 | self.block_len = ainfo.block_len; |
| 346 | |
| 347 | let soniton = NASoniton::new(4, 0); |
| 348 | let out_ainfo = NAAudioInfo::new(ainfo.sample_rate, ainfo.channels, soniton, Self::calc_block_size(self.block_len, self.channels)); |
| 349 | let info = NACodecInfo::new("ms-adpcm", NACodecTypeInfo::Audio(out_ainfo), None); |
| 350 | let mut stream = NAStream::new(StreamType::Audio, stream_id, info.clone(), self.block_len as u32, ainfo.sample_rate); |
| 351 | stream.set_num(stream_id as usize); |
| 352 | let stream = stream.into_ref(); |
| 353 | |
| 354 | self.stream = Some(stream.clone()); |
| 355 | self.samples = Vec::with_capacity(self.block_len * self.channels); |
| 356 | self.srate = ainfo.sample_rate; |
| 357 | self.flush = false; |
| 358 | |
| 359 | Ok(stream) |
| 360 | }, |
| 361 | } |
| 362 | } |
| 363 | fn encode(&mut self, frm: &NAFrame) -> EncoderResult<()> { |
| 364 | let buf = frm.get_buffer(); |
| 365 | if let Some(ref abuf) = buf.get_abuf_i16() { |
| 366 | let src = abuf.get_data(); |
| 367 | let len = abuf.get_length(); |
| 368 | let ch = abuf.get_chmap().num_channels(); |
| 369 | if abuf.get_step() > 1 || ch == 1 { |
| 370 | self.samples.extend(src.iter().take(len * ch)); |
| 371 | } else { |
| 372 | let (src0, src1) = src.split_at(abuf.get_stride()); |
| 373 | self.samples.reserve(len * 2); |
| 374 | for (s0, s1) in src0.iter().take(len).zip(src1.iter()) { |
| 375 | self.samples.push(*s0); |
| 376 | self.samples.push(*s1); |
| 377 | } |
| 378 | } |
| 379 | Ok(()) |
| 380 | } else { |
| 381 | Err(EncoderError::InvalidParameters) |
| 382 | } |
| 383 | } |
| 384 | fn get_packet(&mut self) -> EncoderResult<Option<NAPacket>> { |
| 385 | if let Ok(pkt) = self.encode_packet() { |
| 386 | Ok(Some(pkt)) |
| 387 | } else { |
| 388 | Ok(None) |
| 389 | } |
| 390 | } |
| 391 | fn flush(&mut self) -> EncoderResult<()> { |
| 392 | self.flush = true; |
| 393 | Ok(()) |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | impl NAOptionHandler for MSADPCMEncoder { |
| 398 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 399 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 400 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 401 | } |
| 402 | |
| 403 | pub fn get_encoder() -> Box<dyn NAEncoder + Send> { |
| 404 | Box::new(MSADPCMEncoder::new()) |
| 405 | } |
| 406 | |
| 407 | #[cfg(test)] |
| 408 | mod test { |
| 409 | use nihav_core::codecs::*; |
| 410 | use nihav_core::demuxers::*; |
| 411 | use nihav_core::muxers::*; |
| 412 | use nihav_codec_support::test::dec_video::*; |
| 413 | use nihav_codec_support::test::enc_video::*; |
| 414 | use crate::*; |
| 415 | use nihav_commonfmt::*; |
| 416 | #[cfg(feature="decoder_ms_adpcm")] |
| 417 | #[test] |
| 418 | fn test_ms_adpcm_decoder() { |
| 419 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 420 | generic_register_all_demuxers(&mut dmx_reg); |
| 421 | let mut dec_reg = RegisteredDecoders::new(); |
| 422 | ms_register_all_decoders(&mut dec_reg); |
| 423 | |
| 424 | test_decoding("avi", "ms-adpcm", "assets/MS/dance.avi", None, &dmx_reg, &dec_reg, |
| 425 | ExpectedTestResult::MD5([0xf5e3fc84, 0xbcabc11c, 0x33c6874e, 0xe05ecd14])); |
| 426 | } |
| 427 | #[cfg(feature="encoder_ms_adpcm")] |
| 428 | #[test] |
| 429 | fn test_ms_adpcm_encoder() { |
| 430 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 431 | generic_register_all_demuxers(&mut dmx_reg); |
| 432 | let mut dec_reg = RegisteredDecoders::new(); |
| 433 | generic_register_all_decoders(&mut dec_reg); |
| 434 | ms_register_all_decoders(&mut dec_reg); |
| 435 | let mut mux_reg = RegisteredMuxers::new(); |
| 436 | generic_register_all_muxers(&mut mux_reg); |
| 437 | let mut enc_reg = RegisteredEncoders::new(); |
| 438 | ms_register_all_encoders(&mut enc_reg); |
| 439 | |
| 440 | let dec_config = DecoderTestParams { |
| 441 | demuxer: "avi", |
| 442 | in_name: "assets/Indeo/laser05.avi", |
| 443 | stream_type: StreamType::Audio, |
| 444 | limit: None, |
| 445 | dmx_reg, dec_reg, |
| 446 | }; |
| 447 | let enc_config = EncoderTestParams { |
| 448 | muxer: "wav", |
| 449 | enc_name: "ms-adpcm", |
| 450 | out_name: "msadpcm.wav", |
| 451 | mux_reg, enc_reg, |
| 452 | }; |
| 453 | let dst_ainfo = NAAudioInfo { |
| 454 | sample_rate: 0, |
| 455 | channels: 0, |
| 456 | format: SND_S16_FORMAT, |
| 457 | block_len: 128, |
| 458 | }; |
| 459 | let enc_params = EncodeParameters { |
| 460 | format: NACodecTypeInfo::Audio(dst_ainfo), |
| 461 | quality: 0, |
| 462 | bitrate: 0, |
| 463 | tb_num: 0, |
| 464 | tb_den: 0, |
| 465 | flags: 0, |
| 466 | }; |
| 467 | test_encoding_md5(&dec_config, &enc_config, enc_params, |
| 468 | &[0xe1591a1e, 0x816d0239, 0x4cc42291, 0x4e6b69cb]); |
| 469 | } |
| 470 | } |