From 3e52414f742a961885778d9c851224176a851405 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Sun, 19 Apr 2020 10:04:04 +0200 Subject: [PATCH] add Lernout & Hauspie StreamTalk 25kbps at 22 kHz codec --- nihav-game/Cargo.toml | 3 +- nihav-game/src/codecs/lhst500f22.rs | 642 ++++++++++++++++++++++++++++ nihav-game/src/codecs/mod.rs | 4 + 3 files changed, 648 insertions(+), 1 deletion(-) create mode 100644 nihav-game/src/codecs/lhst500f22.rs diff --git a/nihav-game/Cargo.toml b/nihav-game/Cargo.toml index 0accbc3..daed01e 100644 --- a/nihav-game/Cargo.toml +++ b/nihav-game/Cargo.toml @@ -27,12 +27,13 @@ demuxer_vmd = ["demuxers"] all_decoders = ["all_video_decoders", "all_audio_decoders"] decoders = [] -all_video_decoders = ["decoder_bmv", "decoder_bmv3", "decoder_gdvvid", "decoder_midivid", "decoder_midivid3", "decoder_vmd"] +all_video_decoders = ["decoder_bmv", "decoder_bmv3", "decoder_gdvvid", "decoder_midivid", "decoder_midivid3", "decoder_vmd", "decoder_lhst500f22"] decoder_bmv = ["decoders"] decoder_bmv3 = ["decoders"] decoder_gdvvid = ["decoders"] decoder_midivid = ["decoders"] decoder_midivid3 = ["decoders"] decoder_vmd = ["decoders"] +decoder_lhst500f22 = ["decoders"] all_audio_decoders = [] diff --git a/nihav-game/src/codecs/lhst500f22.rs b/nihav-game/src/codecs/lhst500f22.rs new file mode 100644 index 0000000..eea2c9f --- /dev/null +++ b/nihav-game/src/codecs/lhst500f22.rs @@ -0,0 +1,642 @@ +use nihav_core::codecs::*; +use nihav_core::io::bitreader::*; +use std::str::FromStr; +use std::sync::Arc; + +const CODEC_SAMPLES: usize = 1152; + +struct QMF { + hist: [f32; 1024], + pos: usize, +} + +macro_rules! butterfly { + (in; $src0: expr, $src1: expr, $dst0: expr, $dst1: expr, $scale: expr) => { + $dst0 = $src0 + $src1; + $dst1 = ($src0 - $src1) * $scale; + }; + (rev; $a: expr, $b: expr) => { + butterfly!(rev; $a, $b, std::f32::consts::FRAC_1_SQRT_2); + }; + (rev; $a: expr, $b: expr, $scale: expr) => { + let tmp = $a + $b; + $b = ($a - $b) * $scale; + $a = tmp; + }; + (scal; $a: expr, $b: expr) => { + butterfly!(scal; $a, $b, std::f32::consts::FRAC_1_SQRT_2); + }; + (scal; $a: expr, $b: expr, $scale: expr) => { + let tmp = $a + $b; + $b = ($b - $a) * $scale; + $a = tmp; + }; +} + +macro_rules! postadd { + ($tmp: expr, $a0: expr, $b0: expr, $c0: expr, $d0: expr, $a1: expr, $b1: expr, $c1: expr, $d1: expr) => { + $tmp[$c0] += $tmp[$d0]; + $tmp[$c1] += $tmp[$d1]; + $tmp[$a1] += $tmp[$c1]; + $tmp[$c1] += $tmp[$b1]; + $tmp[$b1] += $tmp[$d1]; + } +} + +fn dct32(src: &[f32; 32], dst: &mut [f32]) { + let mut tmp = [0.0f32; 32]; + + butterfly!(in; src[ 0], src[31], tmp[ 0], tmp[31], 0.50060299823519627); + butterfly!(in; src[ 1], src[30], tmp[ 1], tmp[30], 0.50547095989754365); + butterfly!(in; src[ 2], src[29], tmp[ 2], tmp[29], 0.51544730992262455); + butterfly!(in; src[ 3], src[28], tmp[ 3], tmp[28], 0.53104259108978413); + butterfly!(in; src[ 4], src[27], tmp[ 4], tmp[27], 0.55310389603444454); + butterfly!(in; src[ 5], src[26], tmp[ 5], tmp[26], 0.58293496820613389); + butterfly!(in; src[ 6], src[25], tmp[ 6], tmp[25], 0.62250412303566482); + butterfly!(in; src[ 7], src[24], tmp[ 7], tmp[24], 0.67480834145500568); + butterfly!(in; src[ 8], src[23], tmp[ 8], tmp[23], 0.74453627100229858); + butterfly!(in; src[ 9], src[22], tmp[ 9], tmp[22], 0.83934964541552681); + butterfly!(in; src[10], src[21], tmp[10], tmp[21], 0.97256823786196078); + butterfly!(in; src[11], src[20], tmp[11], tmp[20], 1.1694399334328847); + butterfly!(in; src[12], src[19], tmp[12], tmp[19], 1.4841646163141662); + butterfly!(in; src[13], src[18], tmp[13], tmp[18], 2.0577810099534108); + butterfly!(in; src[14], src[17], tmp[14], tmp[17], 3.407608418468719); + butterfly!(in; src[15], src[16], tmp[15], tmp[16], 10.190008123548033); + butterfly!(rev; tmp[ 0], tmp[15], 0.50241928618815568); + butterfly!(rev; tmp[ 1], tmp[14], 0.52249861493968885); + butterfly!(rev; tmp[ 2], tmp[13], 0.56694403481635769); + butterfly!(rev; tmp[ 3], tmp[12], 0.64682178335999008); + butterfly!(rev; tmp[ 4], tmp[11], 0.7881546234512502); + butterfly!(rev; tmp[ 5], tmp[10], 1.0606776859903471); + butterfly!(rev; tmp[ 6], tmp[ 9], 1.7224470982383342); + butterfly!(rev; tmp[ 7], tmp[ 8], 5.1011486186891553); + butterfly!(scal; tmp[16], tmp[31], 0.50241928618815568); + butterfly!(scal; tmp[17], tmp[30], 0.52249861493968885); + butterfly!(scal; tmp[18], tmp[29], 0.56694403481635769); + butterfly!(scal; tmp[19], tmp[28], 0.64682178335999008); + butterfly!(scal; tmp[20], tmp[27], 0.7881546234512502); + butterfly!(scal; tmp[21], tmp[26], 1.0606776859903471); + butterfly!(scal; tmp[22], tmp[25], 1.7224470982383342); + butterfly!(scal; tmp[23], tmp[24], 5.1011486186891553); + butterfly!(rev; tmp[ 0], tmp[ 7], 0.50979557910415918); + butterfly!(rev; tmp[ 1], tmp[ 6], 0.60134488693504529); + butterfly!(rev; tmp[ 2], tmp[ 5], 0.89997622313641557); + butterfly!(rev; tmp[ 3], tmp[ 4], 2.5629154477415055); + butterfly!(rev; tmp[16], tmp[23], 0.50979557910415918); + butterfly!(rev; tmp[17], tmp[22], 0.60134488693504529); + butterfly!(rev; tmp[18], tmp[21], 0.89997622313641557); + butterfly!(rev; tmp[19], tmp[20], 2.5629154477415055); + butterfly!(scal; tmp[ 8], tmp[15], 0.50979557910415918); + butterfly!(scal; tmp[ 9], tmp[14], 0.60134488693504529); + butterfly!(scal; tmp[10], tmp[13], 0.89997622313641557); + butterfly!(scal; tmp[11], tmp[12], 2.5629154477415055); + butterfly!(scal; tmp[24], tmp[31], 0.50979557910415918); + butterfly!(scal; tmp[25], tmp[30], 0.60134488693504529); + butterfly!(scal; tmp[26], tmp[29], 0.89997622313641557); + butterfly!(scal; tmp[27], tmp[28], 2.5629154477415055); + butterfly!(rev; tmp[ 0], tmp[ 3], 0.54119610014619701); + butterfly!(rev; tmp[ 1], tmp[ 2], 1.3065629648763764); + butterfly!(rev; tmp[ 8], tmp[11], 0.54119610014619701); + butterfly!(rev; tmp[ 9], tmp[10], 1.3065629648763764); + butterfly!(rev; tmp[16], tmp[19], 0.54119610014619701); + butterfly!(rev; tmp[17], tmp[18], 1.3065629648763764); + butterfly!(rev; tmp[24], tmp[27], 0.54119610014619701); + butterfly!(rev; tmp[25], tmp[26], 1.3065629648763764); + butterfly!(scal; tmp[ 4], tmp[ 7], 0.54119610014619701); + butterfly!(scal; tmp[ 5], tmp[ 6], 1.3065629648763764); + butterfly!(scal; tmp[12], tmp[15], 0.54119610014619701); + butterfly!(scal; tmp[13], tmp[14], 1.3065629648763764); + butterfly!(scal; tmp[20], tmp[23], 0.54119610014619701); + butterfly!(scal; tmp[21], tmp[22], 1.3065629648763764); + butterfly!(scal; tmp[28], tmp[31], 0.54119610014619701); + butterfly!(scal; tmp[29], tmp[30], 1.3065629648763764); + butterfly!(rev; tmp[ 0], tmp[ 1]); + butterfly!(rev; tmp[ 4], tmp[ 5]); + butterfly!(rev; tmp[ 8], tmp[ 9]); + butterfly!(rev; tmp[12], tmp[13]); + butterfly!(rev; tmp[16], tmp[17]); + butterfly!(rev; tmp[20], tmp[21]); + butterfly!(rev; tmp[24], tmp[25]); + butterfly!(rev; tmp[28], tmp[29]); + butterfly!(scal; tmp[ 2], tmp[ 3]); + butterfly!(scal; tmp[ 6], tmp[ 7]); + butterfly!(scal; tmp[10], tmp[11]); + butterfly!(scal; tmp[14], tmp[15]); + butterfly!(scal; tmp[18], tmp[19]); + butterfly!(scal; tmp[22], tmp[23]); + butterfly!(scal; tmp[26], tmp[27]); + butterfly!(scal; tmp[30], tmp[31]); + + postadd!(tmp, 0, 1, 2, 3, 4, 5, 6, 7); + postadd!(tmp, 8, 9, 10, 11, 12, 13, 14, 15); + postadd!(tmp,16, 17, 18, 19, 20, 21, 22, 23); + postadd!(tmp,24, 25, 26, 27, 28, 29, 30, 31); + + dst[ 0] = tmp[0]; + dst[16] = tmp[1]; + dst[ 8] = tmp[2]; + dst[24] = tmp[3]; + dst[ 4] = tmp[4]; + dst[20] = tmp[5]; + dst[12] = tmp[6]; + dst[28] = tmp[7]; + + dst[ 2] = tmp[ 8] + tmp[12]; + dst[18] = tmp[ 9] + tmp[13]; + dst[10] = tmp[10] + tmp[14]; + dst[26] = tmp[11] + tmp[15]; + + dst[ 6] = tmp[12] + tmp[10]; + dst[22] = tmp[13] + tmp[11]; + + dst[14] = tmp[14] + tmp[ 9]; + + dst[30] = tmp[15]; + + tmp[24] += tmp[28]; + tmp[28] += tmp[26]; + tmp[26] += tmp[30]; + tmp[30] += tmp[25]; + tmp[25] += tmp[29]; + tmp[29] += tmp[27]; + tmp[27] += tmp[31]; + + dst[ 1] = tmp[16] + tmp[24]; + dst[17] = tmp[17] + tmp[25]; + dst[ 9] = tmp[18] + tmp[26]; + dst[25] = tmp[19] + tmp[27]; + dst[ 5] = tmp[20] + tmp[28]; + dst[21] = tmp[21] + tmp[29]; + dst[13] = tmp[22] + tmp[30]; + dst[29] = tmp[23] + tmp[31]; + + dst[ 3] = tmp[24] + tmp[20]; + dst[19] = tmp[25] + tmp[21]; + dst[11] = tmp[26] + tmp[22]; + dst[27] = tmp[27] + tmp[23]; + + dst[ 7] = tmp[28] + tmp[18]; + dst[23] = tmp[29] + tmp[19]; + + dst[15] = tmp[30] + tmp[17]; + + dst[31] = tmp[31]; +} + +impl QMF { + fn new() -> Self { + Self { + hist: [0.0; 1024], + pos: 0, + } + } + fn synth(&mut self, src: &[f32; 32], dst: &mut [f32]) { + self.pos = self.pos.wrapping_sub(32) & 0x1FF; + dct32(src, &mut self.hist[self.pos..][..32]); + + for i in 0..16 { + let mut acc = 0.0; + for j in (0..512).step_by(64) { + acc += QMF_WINDOW[i + j] * self.hist[(j + 16 + i + self.pos) & 0x1FF]; + acc -= QMF_WINDOW[i + j + 32] * self.hist[(j + 16 + 32 - i + self.pos) & 0x1FF]; + } + dst[i] = acc; + } + let mut acc = 0.0; + for j in (0..512).step_by(64) { + acc -= QMF_WINDOW[j + 32 + 16] * self.hist[(j + 32 + self.pos) & 0x1FF]; + } + dst[16] = acc; + for i in 17..32 { + let mut acc = 0.0; + for j in (0..512).step_by(64) { + acc -= QMF_WINDOW[i + j] * self.hist[(j + 32 + 16 - i + self.pos) & 0x1FF]; + acc -= QMF_WINDOW[i + j + 32] * self.hist[(j + 32 - 16 + i + self.pos) & 0x1FF]; + } + dst[i] = acc; + } + } +} + +struct LHDecoder { + ainfo: NAAudioInfo, + info: Arc, + chmap: NAChannelMap, + + bitalloc: [[u8; 32]; 3], + scf_select: [u8; 32], + scales: [[u8; 32]; 3], + samples: [[f32; 32]; 36], + + bitpos: u32, + + qmf: QMF, +} + +impl LHDecoder { + fn new() -> Self { + Self { + ainfo: NAAudioInfo::new(22050, 1, SND_F32P_FORMAT, CODEC_SAMPLES), + info: NACodecInfo::new_dummy(), + chmap: NAChannelMap::new(), + + bitalloc: [[0; 32]; 3], + scf_select: [0; 32], + scales: [[0; 32]; 3], + samples: [[0.0; 32]; 36], + + bitpos: 0, + + qmf: QMF::new(), + } + } + fn unpack_bitalloc(&mut self, br: &mut BitReader) -> DecoderResult<()> { + for i in 0..3 { + for sb in 0..32 { + self.bitalloc[i][sb] = br.read(BITALLOC_INFO[sb])? as u8; + } + } + Ok(()) + } + fn unpack_scales(&mut self, br: &mut BitReader) -> DecoderResult<()> { + for sb in 0..32 { + if (self.bitalloc[0][sb] | self.bitalloc[1][sb] | self.bitalloc[2][sb]) != 0 { + self.scf_select[sb] = br.read(2)? as u8; + } else { + self.scf_select[sb] = 0; + } + } + + self.scales = [[0; 32]; 3]; + for sb in 0..32 { + let ba0 = self.bitalloc[0][sb]; + let ba1 = self.bitalloc[1][sb]; + let ba2 = self.bitalloc[2][sb]; + if (ba0 | ba1 | ba2) == 0 { + continue; + } + match self.scf_select[sb] { + 0 => { + for j in 0..3 { + if self.bitalloc[j][sb] != 0 { + self.scales[j][sb] = br.read(6)? as u8; + } + } + }, + 1 => { + if (ba0 | ba1) != 0 { + let scale = br.read(6)? as u8; + self.scales[0][sb] = scale; + self.scales[1][sb] = scale; + } + if ba2 != 0 { + self.scales[2][sb] = br.read(6)? as u8; + } + }, + 2 => { + let scale = br.read(6)? as u8; + self.scales[0][sb] = scale; + self.scales[1][sb] = scale; + self.scales[2][sb] = scale; + }, + _ => { + if ba0 != 0 { + self.scales[0][sb] = br.read(6)? as u8; + } + if (ba1 | ba2) != 0 { + let scale = br.read(6)? as u8; + self.scales[1][sb] = scale; + self.scales[2][sb] = scale; + } + }, + }; + } + Ok(()) + } + fn unpack_samples(&mut self, br: &mut BitReader) -> DecoderResult<()> { + for grp in 0..3 { + for gr in 0..4 { + for sb in 0..32 { + let set = (grp * 4 + gr) * 3; + if self.bitalloc[grp][sb] == 0 { + self.samples[set + 0][sb] = 0.0; + self.samples[set + 1][sb] = 0.0; + self.samples[set + 2][sb] = 0.0; + continue; + } + let idx = sb * 4 + (self.bitalloc[grp][sb] as usize); + let bits = GROUP_BITS[idx]; + let sf = SCALEFACTORS[self.scales[grp][sb] as usize]; + if GROUP_INFO[idx] == 1 { + let radix = (1 << bits) - 1; + let val0 = br.read(bits)? as usize; + let val1 = br.read(bits)? as usize; + let val2 = br.read(bits)? as usize; + self.samples[set + 0][sb] = Self::dequant(val0, idx, radix) * sf; + self.samples[set + 1][sb] = Self::dequant(val1, idx, radix) * sf; + self.samples[set + 2][sb] = Self::dequant(val2, idx, radix) * sf; + } else { + let radix = GROUP_RADIX[idx] as usize; + let val = br.read(bits)? as usize; + let val0 = val % radix; + let val1 = (val / radix) % radix; + let val2 = val / radix / radix; + self.samples[set + 0][sb] = Self::dequant(val0, idx, radix) * sf; + self.samples[set + 1][sb] = Self::dequant(val1, idx, radix) * sf; + self.samples[set + 2][sb] = Self::dequant(val2, idx, radix) * sf; + } + } + } + } + Ok(()) + } + fn dequant(val: usize, idx: usize, radix: usize) -> f32 { + let qval = match radix { + 3 => QUANTS3[val], + 5 => QUANTS5[val], + 7 => QUANTS7[val], + 15 => QUANTS15[val], + 63 => QUANTS63[val], + _ => unreachable!(), + }; + let bias_idx = QUANT_BIAS_MAP[idx] as usize; + (qval + QUANT_BIAS[bias_idx]) / QUANT_RANGE[bias_idx] + } +} + +impl NADecoder for LHDecoder { + fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { + if let NACodecTypeInfo::Audio(ainfo) = info.get_properties() { + self.ainfo = NAAudioInfo::new(ainfo.get_sample_rate(), 1, SND_F32P_FORMAT, CODEC_SAMPLES); + self.info = info.replace_info(NACodecTypeInfo::Audio(self.ainfo.clone())); + self.chmap = NAChannelMap::from_str("C").unwrap(); + Ok(()) + } else { + Err(DecoderError::InvalidData) + } + } + fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult { + let info = pkt.get_stream().get_info(); + if let NACodecTypeInfo::Audio(_) = info.get_properties() { + let pktbuf = pkt.get_buffer(); + + let mut daudio = Vec::with_capacity(CODEC_SAMPLES); + + let mut br = BitReader::new(pktbuf.as_slice(), BitReaderMode::BE); + br.skip(self.bitpos)?; + + while br.left() >= 8 { + self.unpack_bitalloc(&mut br)?; + self.unpack_scales(&mut br)?; + self.unpack_samples(&mut br)?; + + let mut samp_buf = [0.0f32; 32]; + for set in 0..36 { + self.qmf.synth(&self.samples[set], &mut samp_buf); + daudio.extend_from_slice(&samp_buf); + } + } + + self.bitpos = (br.tell() as u32) & 7; + + let abuf = alloc_audio_buffer(self.ainfo, daudio.len(), self.chmap.clone())?; + let mut adata = abuf.get_abuf_f32().unwrap(); + let buf = adata.get_data_mut().unwrap(); + (&mut buf[..daudio.len()]).copy_from_slice(daudio.as_slice()); + + let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), abuf); + frm.set_duration(Some(CODEC_SAMPLES as u64)); + frm.set_keyframe(true); + Ok(frm.into_ref()) + } else { + Err(DecoderError::Bug) + } + } + fn flush(&mut self) { + self.qmf = QMF::new(); + self.bitpos = 0; + } +} + +pub fn get_decoder() -> Box { + Box::new(LHDecoder::new()) +} + +const BITALLOC_INFO: [u8; 32] = [ + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 +]; + +const GROUP_BITS: [u8; 128] = [ + 0, 3, 4, 6, 0, 3, 4, 6, 0, 3, 4, 6, 0, 3, 4, 6, + 0, 3, 4, 6, 0, 3, 4, 6, 0, 5, 7, 4, 0, 5, 7, 4, + 0, 5, 7, 4, 0, 5, 7, 4, 0, 5, 7, 4, 0, 5, 7, 4, + 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, + 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, + 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, + 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, + 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0, 0, 5, 0, 0 +]; +const GROUP_INFO: [u8; 128] = [ + 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, + 0, 1, 1, 1, 0, 1, 1, 1, 0, 3, 3, 1, 0, 3, 3, 1, + 0, 3, 3, 1, 0, 3, 3, 1, 0, 3, 3, 1, 0, 3, 3, 1, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0 +]; +const GROUP_RADIX: [u8; 128] = [ + 0, 7, 15, 63, 0, 7, 15, 63, 0, 7, 15, 63, 0, 7, 15, 63, + 0, 7, 15, 63, 0, 7, 15, 63, 0, 3, 5, 15, 0, 3, 5, 15, + 0, 3, 5, 15, 0, 3, 5, 15, 0, 3, 5, 15, 0, 3, 5, 15, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, + 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0 +]; + +const QUANT_BIAS_MAP: [u8; 128] = [ + 0, 2, 4, 6, 0, 2, 4, 6, 0, 2, 4, 6, 0, 2, 4, 6, + 0, 2, 4, 6, 0, 2, 4, 6, 0, 0, 1, 4, 0, 0, 1, 4, + 0, 0, 1, 4, 0, 0, 1, 4, 0, 0, 1, 4, 0, 0, 1, 4, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +]; +const QUANT_BIAS: [f32; 17] = [ + 0.5, 0.5, 0.25, 0.5, 0.125, 0.0625, 0.03125, 0.015625, + 0.0078125, 0.00390625, 0.001953125, 0.0009765625, 0.00048828125, + 0.00024414062, 0.00012207031, 0.000061035164, 0.000030517582 +]; +const QUANT_RANGE: [f32; 17] = [ + 0.75, 0.625, 0.875, 0.5625, 0.9375, 0.96875, 0.984375, + 0.9921875, 0.99609375, 0.99804688, 0.99902344, 0.99951172, + 0.99975586, 0.99987793, 0.99993896, 0.99996948, 0.99998474 +]; +const SCALEFACTORS: [f32; 64] = [ + 2.0, 1.587401, 1.2599211, 1.0, 0.79370052, 0.62996054, + 0.5, 0.39685026, 0.31498027, 0.25, 0.19842513, 0.15749013, + 0.125, 0.099212565, 0.078745067, 0.0625, 0.049606282, 0.039372534, + 0.03125, 0.024803141, 0.019686267, 0.015625, 0.012401571, 0.0098431334, + 0.0078125, 0.0062007853, 0.0049215667, 0.00390625, 0.0031003926, 0.0024607833, + 0.001953125, 0.0015501963, 0.0012303917, 0.0009765625, 0.00077509816, 0.00061519584, + 0.00048828125, 0.00038754908, 0.00030759792, 0.00024414062, 0.00019377454, 0.00015379896, + 0.00012207031, 0.00009688727, 0.00007689948, 0.000061035156, + 0.000048443635, 0.00003844974, 0.000030517578, 0.000024221818, + 0.00001922487, 0.000015258789, 0.000012110909, 0.000009612435, + 0.0000076293945, 0.0000060554544, 0.0000048062175, 0.0000038146973, + 0.0000030277272, 0.0000024031087, 0.0000019073486, 0.0000015138636, + 0.0000012015544, 9.9999997e-21 +]; + +const QUANTS3: [f32; 4] = [ -1.0, -0.5, 0.0, 0.5 ]; +const QUANTS5: [f32; 6] = [ -1.0, -0.75, -0.5, -0.25, 0.0, 0.25 ]; +const QUANTS7: [f32; 8] = [ -1.0, -0.75, -0.5, -0.25, 0.0, 0.25, 0.5, 0.75 ]; +const QUANTS15: [f32; 16] = [ + -1.0, -0.875, -0.75, -0.625, -0.5, -0.375, -0.25, -0.125, + 0.0, 0.125, 0.25, 0.375, 0.5, 0.625, 0.75, 0.875 ]; +const QUANTS63: [f32; 64] = [ + -1.0, -0.96875, -0.9375, -0.90625, -0.875, -0.84375, -0.8125, -0.78125, + -0.75, -0.71875, -0.6875, -0.65625, -0.625, -0.59375, -0.5625, -0.53125, + -0.5, -0.46875, -0.4375, -0.40625, -0.375, -0.34375, -0.3125, -0.28125, + -0.25, -0.21875, -0.1875, -0.15625, -0.125, -0.09375, -0.0625, -0.03125, + 0.0, 0.03125, 0.0625, 0.09375, 0.125, 0.15625, 0.1875, 0.21875, + 0.25, 0.28125, 0.3125, 0.34375, 0.375, 0.40625, 0.4375, 0.46875, + 0.5, 0.53125, 0.5625, 0.59375, 0.625, 0.65625, 0.6875, 0.71875, + 0.75, 0.78125, 0.8125, 0.84375, 0.875, 0.90625, 0.9375, 0.96875 ]; + +const QMF_WINDOW: [f32; 512] = [ + 0.000000000, -0.000015259, -0.000015259, -0.000015259, + -0.000015259, -0.000015259, -0.000015259, -0.000030518, + -0.000030518, -0.000030518, -0.000030518, -0.000045776, + -0.000045776, -0.000061035, -0.000061035, -0.000076294, + -0.000076294, -0.000091553, -0.000106812, -0.000106812, + -0.000122070, -0.000137329, -0.000152588, -0.000167847, + -0.000198364, -0.000213623, -0.000244141, -0.000259399, + -0.000289917, -0.000320435, -0.000366211, -0.000396729, + -0.000442505, -0.000473022, -0.000534058, -0.000579834, + -0.000625610, -0.000686646, -0.000747681, -0.000808716, + -0.000885010, -0.000961304, -0.001037598, -0.001113892, + -0.001205444, -0.001296997, -0.001388550, -0.001480103, + -0.001586914, -0.001693726, -0.001785278, -0.001907349, + -0.002014160, -0.002120972, -0.002243042, -0.002349854, + -0.002456665, -0.002578735, -0.002685547, -0.002792358, + -0.002899170, -0.002990723, -0.003082275, -0.003173828, + 0.003250122, 0.003326416, 0.003387451, 0.003433228, + 0.003463745, 0.003479004, 0.003479004, 0.003463745, + 0.003417969, 0.003372192, 0.003280640, 0.003173828, + 0.003051758, 0.002883911, 0.002700806, 0.002487183, + 0.002227783, 0.001937866, 0.001617432, 0.001266479, + 0.000869751, 0.000442505, -0.000030518, -0.000549316, + -0.001098633, -0.001693726, -0.002334595, -0.003005981, + -0.003723145, -0.004486084, -0.005294800, -0.006118774, + -0.007003784, -0.007919312, -0.008865356, -0.009841919, + -0.010848999, -0.011886597, -0.012939453, -0.014022827, + -0.015121460, -0.016235352, -0.017349243, -0.018463135, + -0.019577026, -0.020690918, -0.021789551, -0.022857666, + -0.023910522, -0.024932861, -0.025909424, -0.026840210, + -0.027725220, -0.028533936, -0.029281616, -0.029937744, + -0.030532837, -0.031005859, -0.031387329, -0.031661987, + -0.031814575, -0.031845093, -0.031738281, -0.031478882, + 0.031082153, 0.030517578, 0.029785156, 0.028884888, + 0.027801514, 0.026535034, 0.025085449, 0.023422241, + 0.021575928, 0.019531250, 0.017257690, 0.014801025, + 0.012115479, 0.009231567, 0.006134033, 0.002822876, + -0.000686646, -0.004394531, -0.008316040, -0.012420654, + -0.016708374, -0.021179199, -0.025817871, -0.030609131, + -0.035552979, -0.040634155, -0.045837402, -0.051132202, + -0.056533813, -0.061996460, -0.067520142, -0.073059082, + -0.078628540, -0.084182739, -0.089706421, -0.095169067, + -0.100540161, -0.105819702, -0.110946655, -0.115921021, + -0.120697021, -0.125259399, -0.129562378, -0.133590698, + -0.137298584, -0.140670776, -0.143676758, -0.146255493, + -0.148422241, -0.150115967, -0.151306152, -0.151962280, + -0.152069092, -0.151596069, -0.150497437, -0.148773193, + -0.146362305, -0.143264771, -0.139450073, -0.134887695, + -0.129577637, -0.123474121, -0.116577148, -0.108856201, + 0.100311279, 0.090927124, 0.080688477, 0.069595337, + 0.057617187, 0.044784546, 0.031082153, 0.016510010, + 0.001068115, -0.015228271, -0.032379150, -0.050354004, + -0.069168091, -0.088775635, -0.109161377, -0.130310059, + -0.152206421, -0.174789429, -0.198059082, -0.221984863, + -0.246505737, -0.271591187, -0.297210693, -0.323318481, + -0.349868774, -0.376800537, -0.404083252, -0.431655884, + -0.459472656, -0.487472534, -0.515609741, -0.543823242, + -0.572036743, -0.600219727, -0.628295898, -0.656219482, + -0.683914185, -0.711318970, -0.738372803, -0.765029907, + -0.791213989, -0.816864014, -0.841949463, -0.866363525, + -0.890090942, -0.913055420, -0.935195923, -0.956481934, + -0.976852417, -0.996246338, -1.014617920, -1.031936646, + -1.048156738, -1.063217163, -1.077117920, -1.089782715, + -1.101211548, -1.111373901, -1.120223999, -1.127746582, + -1.133926392, -1.138763428, -1.142211914, -1.144287109, + 1.144989014, 1.144287109, 1.142211914, 1.138763428, + 1.133926392, 1.127746582, 1.120223999, 1.111373901, + 1.101211548, 1.089782715, 1.077117920, 1.063217163, + 1.048156738, 1.031936646, 1.014617920, 0.996246338, + 0.976852417, 0.956481934, 0.935195923, 0.913055420, + 0.890090942, 0.866363525, 0.841949463, 0.816864014, + 0.791213989, 0.765029907, 0.738372803, 0.711318970, + 0.683914185, 0.656219482, 0.628295898, 0.600219727, + 0.572036743, 0.543823242, 0.515609741, 0.487472534, + 0.459472656, 0.431655884, 0.404083252, 0.376800537, + 0.349868774, 0.323318481, 0.297210693, 0.271591187, + 0.246505737, 0.221984863, 0.198059082, 0.174789429, + 0.152206421, 0.130310059, 0.109161377, 0.088775635, + 0.069168091, 0.050354004, 0.032379150, 0.015228271, + -0.001068115, -0.016510010, -0.031082153, -0.044784546, + -0.057617187, -0.069595337, -0.080688477, -0.090927124, + 0.100311279, 0.108856201, 0.116577148, 0.123474121, + 0.129577637, 0.134887695, 0.139450073, 0.143264771, + 0.146362305, 0.148773193, 0.150497437, 0.151596069, + 0.152069092, 0.151962280, 0.151306152, 0.150115967, + 0.148422241, 0.146255493, 0.143676758, 0.140670776, + 0.137298584, 0.133590698, 0.129562378, 0.125259399, + 0.120697021, 0.115921021, 0.110946655, 0.105819702, + 0.100540161, 0.095169067, 0.089706421, 0.084182739, + 0.078628540, 0.073059082, 0.067520142, 0.061996460, + 0.056533813, 0.051132202, 0.045837402, 0.040634155, + 0.035552979, 0.030609131, 0.025817871, 0.021179199, + 0.016708374, 0.012420654, 0.008316040, 0.004394531, + 0.000686646, -0.002822876, -0.006134033, -0.009231567, + -0.012115479, -0.014801025, -0.017257690, -0.019531250, + -0.021575928, -0.023422241, -0.025085449, -0.026535034, + -0.027801514, -0.028884888, -0.029785156, -0.030517578, + 0.031082153, 0.031478882, 0.031738281, 0.031845093, + 0.031814575, 0.031661987, 0.031387329, 0.031005859, + 0.030532837, 0.029937744, 0.029281616, 0.028533936, + 0.027725220, 0.026840210, 0.025909424, 0.024932861, + 0.023910522, 0.022857666, 0.021789551, 0.020690918, + 0.019577026, 0.018463135, 0.017349243, 0.016235352, + 0.015121460, 0.014022827, 0.012939453, 0.011886597, + 0.010848999, 0.009841919, 0.008865356, 0.007919312, + 0.007003784, 0.006118774, 0.005294800, 0.004486084, + 0.003723145, 0.003005981, 0.002334595, 0.001693726, + 0.001098633, 0.000549316, 0.000030518, -0.000442505, + -0.000869751, -0.001266479, -0.001617432, -0.001937866, + -0.002227783, -0.002487183, -0.002700806, -0.002883911, + -0.003051758, -0.003173828, -0.003280640, -0.003372192, + -0.003417969, -0.003463745, -0.003479004, -0.003479004, + -0.003463745, -0.003433228, -0.003387451, -0.003326416, + 0.003250122, 0.003173828, 0.003082275, 0.002990723, + 0.002899170, 0.002792358, 0.002685547, 0.002578735, + 0.002456665, 0.002349854, 0.002243042, 0.002120972, + 0.002014160, 0.001907349, 0.001785278, 0.001693726, + 0.001586914, 0.001480103, 0.001388550, 0.001296997, + 0.001205444, 0.001113892, 0.001037598, 0.000961304, + 0.000885010, 0.000808716, 0.000747681, 0.000686646, + 0.000625610, 0.000579834, 0.000534058, 0.000473022, + 0.000442505, 0.000396729, 0.000366211, 0.000320435, + 0.000289917, 0.000259399, 0.000244141, 0.000213623, + 0.000198364, 0.000167847, 0.000152588, 0.000137329, + 0.000122070, 0.000106812, 0.000106812, 0.000091553, + 0.000076294, 0.000076294, 0.000061035, 0.000061035, + 0.000045776, 0.000045776, 0.000030518, 0.000030518, + 0.000030518, 0.000030518, 0.000015259, 0.000015259, + 0.000015259, 0.000015259, 0.000015259, 0.000015259, +]; diff --git a/nihav-game/src/codecs/mod.rs b/nihav-game/src/codecs/mod.rs index 8e163ba..bd2d6eb 100644 --- a/nihav-game/src/codecs/mod.rs +++ b/nihav-game/src/codecs/mod.rs @@ -10,6 +10,8 @@ pub mod bmv; pub mod bmv3; #[cfg(feature="decoder_gdvvid")] pub mod gremlinvideo; +#[cfg(feature="decoder_lhst500f22")] +pub mod lhst500f22; #[cfg(feature="decoder_midivid")] pub mod midivid; #[cfg(feature="decoder_midivid3")] @@ -34,6 +36,8 @@ const GAME_CODECS: &[DecoderInfo] = &[ DecoderInfo { name: "vmd-audio", get_decoder: vmd::get_decoder_audio }, #[cfg(feature="decoder_vmd")] DecoderInfo { name: "vmd-video", get_decoder: vmd::get_decoder_video }, +#[cfg(feature="decoder_lhst500f22")] + DecoderInfo { name: "lhst500f22", get_decoder: lhst500f22::get_decoder }, #[cfg(feature="decoder_midivid")] DecoderInfo { name: "midivid", get_decoder: midivid::get_decoder_video }, #[cfg(feature="decoder_midivid3")] -- 2.39.5