From 0e18270ddb438c765a4597404f9053a15ce84704 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Thu, 7 Jul 2022 17:57:00 +0200 Subject: [PATCH] aac: SBR support (without PS) --- nihav-mpeg/Cargo.toml | 1 + nihav-mpeg/src/codecs/aac/mod.rs | 118 ++- nihav-mpeg/src/codecs/aac/sbr/bs.rs | 584 ++++++++++++ nihav-mpeg/src/codecs/aac/sbr/dsp.rs | 328 +++++++ nihav-mpeg/src/codecs/aac/sbr/mod.rs | 427 +++++++++ nihav-mpeg/src/codecs/aac/sbr/synth.rs | 1130 ++++++++++++++++++++++++ nihav-mpeg/src/codecs/mod.rs | 2 + nihav-mpeg/src/lib.rs | 1 + 8 files changed, 2581 insertions(+), 10 deletions(-) create mode 100644 nihav-mpeg/src/codecs/aac/sbr/bs.rs create mode 100644 nihav-mpeg/src/codecs/aac/sbr/dsp.rs create mode 100644 nihav-mpeg/src/codecs/aac/sbr/mod.rs create mode 100644 nihav-mpeg/src/codecs/aac/sbr/synth.rs diff --git a/nihav-mpeg/Cargo.toml b/nihav-mpeg/Cargo.toml index 53a1d9e..84d0c4b 100644 --- a/nihav-mpeg/Cargo.toml +++ b/nihav-mpeg/Cargo.toml @@ -14,6 +14,7 @@ features = ["qmf", "fft", "mdct", "dsp_window"] [dev-dependencies] nihav_flash = { path = "../nihav-flash", default-features=false, features = ["all_demuxers"] } nihav_realmedia = { path = "../nihav-realmedia", default-features=false, features = ["all_demuxers"] } +nihav_commonfmt = { path = "../nihav-commonfmt", default-features=false, features = ["all_demuxers"] } [features] default = ["all_decoders"] diff --git a/nihav-mpeg/src/codecs/aac/mod.rs b/nihav-mpeg/src/codecs/aac/mod.rs index de9fbe5..2d37fa7 100644 --- a/nihav-mpeg/src/codecs/aac/mod.rs +++ b/nihav-mpeg/src/codecs/aac/mod.rs @@ -11,6 +11,8 @@ mod coeff_read; use coeff_read::*; mod info; use info::*; +mod sbr; +use sbr::{SBRHeader, SBRCodebooks, SBRState, SBRChannel, SBRDSP, sbr_read_sce, sbr_read_cpe}; #[allow(clippy::excessive_precision)] mod tables; use tables::*; @@ -288,6 +290,10 @@ struct ChannelPair { ms_mask_present: u8, ms_used: [[bool; MAX_SFBS]; MAX_WINDOWS], ics: [ICS; 2], + sbr_hdr: SBRHeader, + sbr_state: SBRState, + sbr_ch: [SBRChannel; 2], + do_sbr: bool, } impl ChannelPair { @@ -298,6 +304,10 @@ impl ChannelPair { ms_mask_present: 0, ms_used: [[false; MAX_SFBS]; MAX_WINDOWS], ics: [ICS::new(sbinfo), ICS::new(sbinfo)], + sbr_hdr: SBRHeader::new(), + sbr_state: SBRState::new(), + sbr_ch: [SBRChannel::new(), SBRChannel::new()], + do_sbr: false, } } fn decode_ga_sce(&mut self, br: &mut BitReader, codebooks: &Codebooks, m4atype: M4AType) -> DecoderResult<()> { @@ -356,14 +366,59 @@ impl ChannelPair { } Ok(()) } - fn synth_audio(&mut self, dsp: &mut DSP, abuf: &mut NABufferType, srate_idx: usize) { + fn decode_sbr(&mut self, buf: &[u8], has_crc: bool, cbs: &SBRCodebooks, srate: u32) -> DecoderResult<()> { + let mut br = BitReader::new(buf, BitReaderMode::BE); + if has_crc { + let _bs_sbr_crc_bits = br.read(10)?; + } + if br.read_bool()? { + if let Ok(hdr) = SBRHeader::read(&mut br) { + if self.sbr_hdr.differs_from(&hdr) { + self.do_sbr = self.sbr_state.init(&hdr, srate).is_ok(); + self.sbr_ch[0].reset(); + self.sbr_ch[1].reset(); + } + self.sbr_hdr = hdr; + } else { + self.do_sbr = false; + } + } + if self.do_sbr { + if !self.pair { + sbr_read_sce(&mut br, self.sbr_hdr.amp_res, &self.sbr_state, cbs, &mut self.sbr_ch[0])?; + } else { + sbr_read_cpe(&mut br, self.sbr_hdr.amp_res, &self.sbr_state, cbs, &mut self.sbr_ch)?; + } + } + + Ok(()) + } + fn synth_audio(&mut self, dsp: &mut DSP, abuf: &mut NABufferType, srate_idx: usize, upsample: bool) { let mut adata = abuf.get_abuf_f32().unwrap(); let output = adata.get_data_mut().unwrap(); let off0 = abuf.get_offset(self.channel); let off1 = abuf.get_offset(self.channel + 1); - self.ics[0].synth_channel(dsp, &mut output[off0..], srate_idx); - if self.pair { - self.ics[1].synth_channel(dsp, &mut output[off1..], srate_idx); + if !upsample { + self.ics[0].synth_channel(dsp, &mut output[off0..], srate_idx); + if self.pair { + self.ics[1].synth_channel(dsp, &mut output[off1..], srate_idx); + } + } else { + let mut tmp = [0.0; 1024]; + let nchannels = if self.pair { 2 } else { 1 }; + for ch in 0..nchannels { + let off = if ch == 0 { off0 } else { off1 }; + self.ics[ch].synth_channel(dsp, &mut tmp, srate_idx); + self.sbr_ch[ch].analysis(&mut dsp.sbr_dsp, &tmp); + if self.do_sbr { + self.sbr_ch[ch].hf_generate(&self.sbr_state); + self.sbr_ch[ch].hf_adjust(&self.sbr_state, &self.sbr_hdr); + } else { + self.sbr_ch[ch].bypass(); + } + self.sbr_ch[ch].synthesis(&mut dsp.sbr_dsp, &mut output[off..][..2048]); + self.sbr_ch[ch].update_frame(); + } } } } @@ -377,6 +432,7 @@ struct DSP { imdct_short: IMDCT, tmp: [f32; 2048], ew_buf: [f32; 1152], + sbr_dsp: SBRDSP, } const SHORT_WIN_POINT0: usize = 512 - 64; @@ -398,6 +454,7 @@ impl DSP { imdct_long: IMDCT::new(1024 * 2, true), imdct_short: IMDCT::new(128 * 2, true), tmp: [0.0; 2048], ew_buf: [0.0; 1152], + sbr_dsp: SBRDSP::new(), } } #[allow(clippy::cognitive_complexity)] @@ -507,6 +564,8 @@ struct AACDecoder { codebooks: Codebooks, dsp: DSP, sbinfo: GASubbandInfo, + sbr_cbs: SBRCodebooks, + upsample: bool, } impl AACDecoder { @@ -519,6 +578,8 @@ impl AACDecoder { codebooks: Codebooks::new(), dsp: DSP::new(), sbinfo: AAC_SUBBAND_INFO[0], + sbr_cbs: SBRCodebooks::new(), + upsample: false, } } fn set_pair(&mut self, pair_no: usize, channel: usize, pair: bool) -> DecoderResult<()> { @@ -578,9 +639,28 @@ impl AACDecoder { count += br.read(8)? as usize; count -= 1; } - for _ in 0..count { - // ext payload + if count > 0 { + let extension_type = br.read(4)?; + match extension_type { + 0xD | 0xE => { // SBR data without or with CRC + let has_crc = extension_type == 0xE; + + let mut buf = [0; 256 + 16]; + for el in buf[..count - 1].iter_mut() { + *el = br.read(8)? as u8; + } + buf[count - 1] = br.read(4)? as u8; + if cur_pair > 0 { + self.pairs[cur_pair - 1].decode_sbr(&buf[..count], has_crc, &self.sbr_cbs, self.m4ainfo.srate * 2)?; + } + }, + _ => { + for _ in 0..count-1 { br.skip(8)?; + } + br.skip(4)?; + }, + }; } }, 7 => { // ID_TERM @@ -591,7 +671,7 @@ impl AACDecoder { } let srate_idx = GASubbandInfo::find_idx(self.m4ainfo.srate); for pair in 0..cur_pair { - self.pairs[pair].synth_audio(&mut self.dsp, abuf, srate_idx); + self.pairs[pair].synth_audio(&mut self.dsp, abuf, srate_idx, self.upsample); } Ok(()) } @@ -665,8 +745,15 @@ impl NADecoder for AACDecoder { } self.sbinfo = GASubbandInfo::find(self.m4ainfo.srate); - let ainfo = NAAudioInfo::new(self.m4ainfo.srate, self.m4ainfo.channels as u8, - SND_F32P_FORMAT, self.m4ainfo.samples); + self.upsample = self.m4ainfo.srate < 32000; + let (srate, samples) = if !self.upsample { + (self.m4ainfo.srate, self.m4ainfo.samples) + } else { + (self.m4ainfo.srate * 2, self.m4ainfo.samples * 2) + }; + + let ainfo = NAAudioInfo::new(srate, self.m4ainfo.channels as u8, + SND_F32P_FORMAT, samples); self.info = info.replace_info(NACodecTypeInfo::Audio(ainfo)); if self.m4ainfo.channels >= DEFAULT_CHANNEL_MAP.len() { @@ -687,7 +774,8 @@ impl NADecoder for AACDecoder { let pktbuf = pkt.get_buffer(); let ainfo = self.info.get_properties().get_audio_info().unwrap(); - let mut abuf = alloc_audio_buffer(ainfo, self.m4ainfo.samples, self.chmap.clone())?; + let samples = if !self.upsample { self.m4ainfo.samples } else { self.m4ainfo.samples * 2 }; + let mut abuf = alloc_audio_buffer(ainfo, samples, self.chmap.clone())?; let mut br = BitReader::new(&pktbuf, BitReaderMode::BE); match self.m4ainfo.otype { @@ -737,6 +825,16 @@ mod test { let file = "assets/RV/rv40_weighted_mc_2.rmvb"; test_decode_audio("realmedia", file, Some(12000), None/*Some("aac")*/, &dmx_reg, &dec_reg); } + #[test] + fn test_aac_sbr() { + let mut dmx_reg = RegisteredDemuxers::new(); + nihav_commonfmt::generic_register_all_demuxers(&mut dmx_reg); + let mut dec_reg = RegisteredDecoders::new(); + mpeg_register_all_decoders(&mut dec_reg); + + let file = "assets/MPEG/SBRtestStereoAot29Sig0.mp4"; + test_decode_audio("mov", file, Some(400), None/*Some("aacsbr")*/, &dmx_reg, &dec_reg); + } } const DEFAULT_CHANNEL_MAP: [&str; 9] = [ diff --git a/nihav-mpeg/src/codecs/aac/sbr/bs.rs b/nihav-mpeg/src/codecs/aac/sbr/bs.rs new file mode 100644 index 0000000..292a32a --- /dev/null +++ b/nihav-mpeg/src/codecs/aac/sbr/bs.rs @@ -0,0 +1,584 @@ +use nihav_core::codecs::{DecoderResult, DecoderError}; +use nihav_core::io::bitreader::*; +use nihav_core::io::codebook::*; + +use super::{MAX_SLOTS, NUM_ENVELOPES, SBR_BANDS, SBRState, SBRChannel}; +use super::synth::QuantMode; + +#[derive(Clone,Copy,Debug,PartialEq)] +pub enum FrameClass { + FixFix, + FixVar, + VarFix, + VarVar, +} + +impl FrameClass { + fn read(br: &mut BitReader) -> DecoderResult { + Ok(match br.read(2)? { + 0 => Self::FixFix, + 1 => Self::FixVar, + 2 => Self::VarFix, + _ => Self::VarVar, + }) + } +} + +pub fn sbr_read_sce(br: &mut BitReader, orig_amp_res: bool, state: &SBRState, cbs: &SBRCodebooks, ch: &mut SBRChannel) -> DecoderResult<()> { + ch.qmode = QuantMode::Single; + if br.read_bool()? { + br.skip(4)?; + } + read_grid(br, ch)?; + read_dtdf(br, ch)?; + read_invf(br, ch, state)?; + ch.set_amp_res(orig_amp_res); + read_envelope(br, ch, false, cbs, state)?; + read_noise(br, ch, false, cbs, state)?; + read_sinusoidal_coding(br, ch, state)?; + read_extensions(br)?; + + Ok(()) +} +pub fn sbr_read_cpe(br: &mut BitReader, orig_amp_res: bool, state: &SBRState, cbs: &SBRCodebooks, ch: &mut [SBRChannel; 2]) -> DecoderResult<()> { + if br.read_bool()? { + br.skip(4)?; + br.skip(4)?; + } + let coupling = br.read_bool()?; + if coupling { + ch[0].qmode = QuantMode::Left; + ch[1].qmode = QuantMode::Right; + read_grid(br, &mut ch[0])?; + ch[1].fclass = ch[0].fclass; + ch[1].num_env = ch[0].num_env; + ch[1].env_border = ch[0].env_border; + ch[1].freq_res = ch[0].freq_res; + ch[1].pointer = ch[0].pointer; + ch[1].num_noise = ch[0].num_noise; + ch[1].noise_env_border = ch[0].noise_env_border; + + read_dtdf(br, &mut ch[0])?; + read_dtdf(br, &mut ch[1])?; + read_invf(br, &mut ch[0], state)?; + ch[1].invf_mode = ch[0].invf_mode; + + ch[0].set_amp_res(orig_amp_res); + read_envelope(br, &mut ch[0], false, cbs, state)?; + read_noise(br, &mut ch[0], false, cbs, state)?; + ch[1].set_amp_res(orig_amp_res); + read_envelope(br, &mut ch[1], true, cbs, state)?; + read_noise(br, &mut ch[1], true, cbs, state)?; + + ch[0].data_env2 = ch[1].data_env; + ch[0].data_noise2 = ch[1].data_noise; + ch[1].data_env2 = ch[0].data_env; + ch[1].data_noise2 = ch[0].data_noise; + } else { + ch[0].qmode = QuantMode::Single; + ch[1].qmode = QuantMode::Single; + read_grid(br, &mut ch[0])?; + read_grid(br, &mut ch[1])?; + read_dtdf(br, &mut ch[0])?; + read_dtdf(br, &mut ch[1])?; + read_invf(br, &mut ch[0], state)?; + read_invf(br, &mut ch[1], state)?; + + ch[0].set_amp_res(orig_amp_res); + read_envelope(br, &mut ch[0], false, cbs, state)?; + ch[1].set_amp_res(orig_amp_res); + read_envelope(br, &mut ch[1], false, cbs, state)?; + read_noise(br, &mut ch[0], false, cbs, state)?; + read_noise(br, &mut ch[1], false, cbs, state)?; + } + read_sinusoidal_coding(br, &mut ch[0], state)?; + read_sinusoidal_coding(br, &mut ch[1], state)?; + read_extensions(br)?; + + Ok(()) +} + +fn read_grid(br: &mut BitReader, chan: &mut SBRChannel) -> DecoderResult<()> { + chan.fclass = FrameClass::read(br)?; + match chan.fclass { + FrameClass::FixFix => { + chan.num_env = 1 << br.read(2)?; + let freq_res = br.read_bool()?; + for el in chan.freq_res[..chan.num_env].iter_mut() { + *el = freq_res; + } + if chan.num_env > 1 { + let delta = (MAX_SLOTS + chan.num_env / 2) / chan.num_env; + chan.env_border[0] = delta; + for i in 0..chan.num_env - 1 { + chan.env_border[i + 1] = chan.env_border[i] + delta; + } + } + chan.env_border[chan.num_env - 1] = MAX_SLOTS; + }, + FrameClass::FixVar => { + let var_bord_1 = br.read(2)? as u8; + chan.num_env = br.read(2)? as usize + 1; + let mut rel_bord_1 = [0u8; NUM_ENVELOPES]; + for el in rel_bord_1[..chan.num_env - 1].iter_mut() { + *el = 2 * (br.read(2)? as u8) + 2; + } + let ptr_bits = 8 - (chan.num_env as u8).leading_zeros(); + chan.pointer = br.read(ptr_bits as u8)? as u8; + for el in chan.freq_res[..chan.num_env].iter_mut().rev() { + *el = br.read_bool()?; + } + + chan.env_border[chan.num_env - 1] = MAX_SLOTS + usize::from(var_bord_1); + for (i, &delta) in (1..chan.num_env).rev().zip(rel_bord_1.iter()) { + chan.env_border[i - 1] = chan.env_border[i] - usize::from(delta); + } + }, + FrameClass::VarFix => { + let var_bord_0 = br.read(2)? as u8; + chan.num_env = br.read(2)? as usize + 1; + let mut rel_bord_0 = [0u8; NUM_ENVELOPES]; + for el in rel_bord_0[..chan.num_env - 1].iter_mut() { + *el = 2 * (br.read(2)? as u8) + 2; + } + let ptr_bits = 8 - (chan.num_env as u8).leading_zeros(); + chan.pointer = br.read(ptr_bits as u8)? as u8; + for el in chan.freq_res[..chan.num_env].iter_mut() { + *el = br.read_bool()?; + } + + chan.env_border[0] = usize::from(var_bord_0 + rel_bord_0[0]); + for i in 1..chan.num_env { + chan.env_border[i] = chan.env_border[i - 1] + usize::from(rel_bord_0[i]); + } + chan.env_border[chan.num_env - 1] = MAX_SLOTS; + }, + FrameClass::VarVar => { + let var_bord_0 = br.read(2)? as u8; + let var_bord_1 = br.read(2)? as u8; + let num_rel_0 = br.read(2)? as usize; + let num_rel_1 = br.read(2)? as usize; + chan.num_env = (num_rel_0 as usize) + (num_rel_1 as usize) + 1; + let mut rel_bord_0 = [0u8; NUM_ENVELOPES]; + let mut rel_bord_1 = [0u8; NUM_ENVELOPES]; + for el in rel_bord_0[..num_rel_0].iter_mut() { + *el = 2 * (br.read(2)? as u8) + 2; + } + for el in rel_bord_1[..num_rel_1].iter_mut() { + *el = 2 * (br.read(2)? as u8) + 2; + } + let ptr_bits = 8 - (chan.num_env as u8).leading_zeros(); + chan.pointer = br.read(ptr_bits as u8)? as u8; + for el in chan.freq_res[..chan.num_env].iter_mut() { + *el = br.read_bool()?; + } + + chan.env_border[0] = usize::from(var_bord_0 + rel_bord_0[0]); + for i in 1..=num_rel_0 { + chan.env_border[i] = chan.env_border[i - 1] + usize::from(rel_bord_0[i]); + } + chan.env_border[chan.num_env - 1] = MAX_SLOTS + usize::from(var_bord_1); + for i in 0..num_rel_1 { + chan.env_border[chan.num_env - 2 - i] = chan.env_border[chan.num_env - 1 - i] - usize::from(rel_bord_1[i]); + } + }, + }; + for i in 0..chan.num_env - 1 { + validate!(chan.env_border[i] < chan.env_border[i + 1]); + } + + if chan.num_env > 1 { + chan.num_noise = 2; + let mid = match (chan.fclass, chan.pointer) { + (FrameClass::FixFix, _) => chan.num_env / 2 - 1, + (FrameClass::VarFix, 0) => 0, + (FrameClass::VarFix, 1) => chan.num_env - 2, + (FrameClass::VarFix, _) => chan.pointer as usize - 2, + (_, 0) | (_, 1) => chan.num_env - 2, + (_, _) => chan.num_env - (chan.pointer as usize), + }; + chan.noise_env_border[0] = chan.env_border[mid]; + chan.noise_env_border[1] = chan.env_border[chan.num_env - 1]; + } else { + chan.num_noise = 1; + chan.noise_env_border[0] = chan.env_border[0]; + } + + + Ok(()) +} +fn read_dtdf(br: &mut BitReader, chan: &mut SBRChannel) -> DecoderResult<()> { + for el in chan.df_env[..chan.num_env].iter_mut() { + *el = br.read_bool()?; + } + for el in chan.df_noise[..chan.num_noise].iter_mut() { + *el = br.read_bool()?; + } + Ok(()) +} +fn read_invf(br: &mut BitReader, chan: &mut SBRChannel, state: &SBRState) -> DecoderResult<()> { + for el in chan.invf_mode[..state.num_noise_bands].iter_mut() { + *el = br.read(2)? as u8; + } + Ok(()) +} +fn read_envelope(br: &mut BitReader, chan: &mut SBRChannel, coupled: bool, cbs: &SBRCodebooks, state: &SBRState) -> DecoderResult<()> { + let (f_cb, t_cb) = if coupled { + if chan.amp_res { + (&cbs.env_bal_3_0db_f_cb, &cbs.env_bal_3_0db_t_cb) + } else { + (&cbs.env_bal_1_5db_f_cb, &cbs.env_bal_1_5db_t_cb) + } + } else { + if chan.amp_res { + (&cbs.env_3_0db_f_cb, &cbs.env_3_0db_t_cb) + } else { + (&cbs.env_1_5db_f_cb, &cbs.env_1_5db_t_cb) + } + }; + let scale = if coupled { 2 } else { 1 }; + for (envelope, (&df_env, &freq_res)) in chan.data_env[..chan.num_env].iter_mut().zip(chan.df_env.iter().zip(chan.freq_res.iter())) { + let num_env_bands = state.num_env_bands[freq_res as usize]; + if !df_env { + if coupled { + envelope[0] = br.read(5 + (!chan.amp_res as u8))? as i8; + } else { + envelope[0] = br.read(6 + (!chan.amp_res as u8))? as i8; + } + envelope[0] *= scale; + let mut last = envelope[0]; + for band_env in envelope[1..num_env_bands].iter_mut() { + let delta = br.read_cb(f_cb)?; + *band_env = last + delta * scale; + last = *band_env + } + } else { + for (i, band_env) in envelope[..num_env_bands].iter_mut().enumerate() { + let delta = br.read_cb(t_cb)?; + let last = match (freq_res, chan.last_freq_res) { + (true, false) => chan.last_envelope[state.high_to_low_res[i]], + (false, true) => chan.last_envelope[state.low_to_high_res[i]], + _ => chan.last_envelope[i], + }; + *band_env = last + delta * scale; + } + } + chan.last_envelope = *envelope; + chan.last_freq_res = freq_res; + } + Ok(()) +} +fn read_noise(br: &mut BitReader, chan: &mut SBRChannel, coupled: bool, cbs: &SBRCodebooks, state: &SBRState) -> DecoderResult<()> { + let (f_cb, t_cb) = if coupled { + (&cbs.env_bal_3_0db_f_cb, &cbs.noise_bal_3_0db_t_cb) + } else { + (&cbs.env_3_0db_f_cb, &cbs.noise_3_0db_t_cb) + }; + let scale = if coupled { 2 } else { 1 }; + for (noise, &df_noise) in chan.data_noise[..chan.num_noise].iter_mut().zip(chan.df_noise.iter()) { + if !df_noise { + noise[0] = (br.read(5)? as i8) * scale; + let mut last = noise[0]; + for band_noise in noise[1..state.num_noise_bands].iter_mut() { + let delta = br.read_cb(f_cb)?; + *band_noise = last + scale * delta; + last = *band_noise; + } + } else { + for (band_noise, &last) in noise[..state.num_noise_bands].iter_mut().zip(chan.last_noise_env.iter()) { + let delta = br.read_cb(t_cb)?; + *band_noise = last + delta * scale; + } + } + chan.last_noise_env = *noise; + } + Ok(()) +} +fn read_sinusoidal_coding(br: &mut BitReader, chan: &mut SBRChannel, state: &SBRState) -> DecoderResult<()> { + if !br.read_bool()? { + chan.add_harmonic = [false; SBR_BANDS]; + return Ok(()); + } + for el in chan.add_harmonic[..state.num_env_bands[1]].iter_mut() { + *el = br.read_bool()?; + } + Ok(()) +} +fn read_extensions(br: &mut BitReader) -> DecoderResult<()> { + if br.read_bool()? { + let mut size = br.read(4)? as usize; + if size == 15 { + size += br.read(8)? as usize; + } + validate!(br.left() >= ((size * 8) as isize)); + let end = br.tell() + size * 8; + while br.tell() + 7 < end { + let _extension_id = br.read(2)?; + // todo parse PS? + } + } + Ok(()) +} + +pub struct SBRCodebooks { + env_bal_1_5db_f_cb: Codebook, + env_bal_1_5db_t_cb: Codebook, + env_bal_3_0db_f_cb: Codebook, + env_bal_3_0db_t_cb: Codebook, + env_1_5db_f_cb: Codebook, + env_1_5db_t_cb: Codebook, + env_3_0db_f_cb: Codebook, + env_3_0db_t_cb: Codebook, + noise_bal_3_0db_t_cb: Codebook, + noise_3_0db_t_cb: Codebook, +} + +fn map_idx12(idx: usize) -> i8 { idx as i8 - 12 } +fn map_idx24(idx: usize) -> i8 { idx as i8 - 24 } +fn map_idx31(idx: usize) -> i8 { idx as i8 - 31 } +fn map_idx60(idx: usize) -> i8 { idx as i8 - 60 } + +impl SBRCodebooks { + pub fn new() -> Self { + let mut cbr = TableCodebookDescReader::new(ENV_BAL_1_5DB_F_BITS, ENV_BAL_1_5DB_F_LENS, map_idx24); + let env_bal_1_5db_f_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + let mut cbr = TableCodebookDescReader::new(ENV_BAL_1_5DB_T_BITS, ENV_BAL_1_5DB_T_LENS, map_idx24); + let env_bal_1_5db_t_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + + let mut cbr = TableCodebookDescReader::new(ENV_1_5DB_F_BITS, ENV_1_5DB_F_LENS, map_idx60); + let env_1_5db_f_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + let mut cbr = TableCodebookDescReader::new(ENV_1_5DB_T_BITS, ENV_1_5DB_T_LENS, map_idx60); + let env_1_5db_t_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + + let mut cbr = TableCodebookDescReader::new(ENV_BAL_3_0DB_F_BITS, ENV_BAL_3_0DB_F_LENS, map_idx12); + let env_bal_3_0db_f_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + let mut cbr = TableCodebookDescReader::new(ENV_BAL_3_0DB_T_BITS, ENV_BAL_3_0DB_T_LENS, map_idx12); + let env_bal_3_0db_t_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + + let mut cbr = TableCodebookDescReader::new(ENV_3_0DB_F_BITS, ENV_3_0DB_F_LENS, map_idx31); + let env_3_0db_f_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + let mut cbr = TableCodebookDescReader::new(ENV_3_0DB_T_BITS, ENV_3_0DB_T_LENS, map_idx31); + let env_3_0db_t_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + + let mut cbr = TableCodebookDescReader::new(NOISE_BAL_3_0DB_T_BITS, NOISE_BAL_3_0DB_T_LENS, map_idx12); + let noise_bal_3_0db_t_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + let mut cbr = TableCodebookDescReader::new(NOISE_3_0DB_T_BITS, NOISE_3_0DB_T_LENS, map_idx31); + let noise_3_0db_t_cb = Codebook::new(&mut cbr, CodebookMode::MSB).unwrap(); + + Self { + env_bal_1_5db_f_cb, env_bal_1_5db_t_cb, + env_1_5db_f_cb, env_1_5db_t_cb, + env_bal_3_0db_f_cb, env_bal_3_0db_t_cb, + env_3_0db_f_cb, env_3_0db_t_cb, + noise_3_0db_t_cb, noise_bal_3_0db_t_cb + } + } +} + +const ENV_1_5DB_F_BITS: &[u32; 121] = &[ + 0x7ffe7, 0x7ffe8, 0xfffd2, 0xfffd3, 0xfffd4, 0xfffd5, 0xfffd6, 0xfffd7, + 0xfffd8, 0x7ffda, 0xfffd9, 0xfffda, 0xfffdb, 0xfffdc, 0x7ffdb, 0xfffdd, + 0x7ffdc, 0x7ffdd, 0xfffde, 0x3ffe4, 0xfffdf, 0xfffe0, 0xfffe1, 0x7ffde, + 0xfffe2, 0xfffe3, 0xfffe4, 0x7ffdf, 0xfffe5, 0x7ffe0, 0x3ffe8, 0x7ffe1, + 0x3ffe0, 0x3ffe9, 0x1ffef, 0x3ffe5, 0x1ffec, 0x1ffed, 0x1ffee, 0x0fff4, + 0x0fff3, 0x0fff0, 0x07ff7, 0x07ff6, 0x03ffa, 0x01ffa, 0x01ff9, 0x00ffa, + 0x00ff8, 0x007f9, 0x003fb, 0x001fc, 0x001fa, 0x000fb, 0x0007c, 0x0003c, + 0x0001c, 0x0000c, 0x00005, 0x00001, 0x00000, 0x00004, 0x0000d, 0x0001d, + 0x0003d, 0x000fa, 0x000fc, 0x001fb, 0x003fa, 0x007f8, 0x007fa, 0x007fb, + 0x00ff9, 0x00ffb, 0x01ff8, 0x01ffb, 0x03ff8, 0x03ff9, 0x0fff1, 0x0fff2, + 0x1ffea, 0x1ffeb, 0x3ffe1, 0x3ffe2, 0x3ffea, 0x3ffe3, 0x3ffe6, 0x3ffe7, + 0x3ffeb, 0xfffe6, 0x7ffe2, 0xfffe7, 0xfffe8, 0xfffe9, 0xfffea, 0xfffeb, + 0xfffec, 0x7ffe3, 0xfffed, 0xfffee, 0xfffef, 0xffff0, 0x7ffe4, 0xffff1, + 0x3ffec, 0xffff2, 0xffff3, 0x7ffe5, 0x7ffe6, 0xffff4, 0xffff5, 0xffff6, + 0xffff7, 0xffff8, 0xffff9, 0xffffa, 0xffffb, 0xffffc, 0xffffd, 0xffffe, + 0xfffff +]; +const ENV_1_5DB_F_LENS: &[u8; 121] = &[ + 19, 19, 20, 20, 20, 20, 20, 20, + 20, 19, 20, 20, 20, 20, 19, 20, + 19, 19, 20, 18, 20, 20, 20, 19, + 20, 20, 20, 19, 20, 19, 18, 19, + 18, 18, 17, 18, 17, 17, 17, 16, + 16, 16, 15, 15, 14, 13, 13, 12, + 12, 11, 10, 9, 9, 8, 7, 6, + 5, 4, 3, 2, 2, 3, 4, 5, + 6, 8, 8, 9, 10, 11, 11, 11, + 12, 12, 13, 13, 14, 14, 16, 16, + 17, 17, 18, 18, 18, 18, 18, 18, + 18, 20, 19, 20, 20, 20, 20, 20, + 20, 19, 20, 20, 20, 20, 19, 20, + 18, 20, 20, 19, 19, 20, 20, 20, + 20, 20, 20, 20, 20, 20, 20, 20, + 20 +]; +const ENV_1_5DB_T_BITS: &[u32; 121] = &[ + 0x3ffd6, 0x3ffd7, 0x3ffd8, 0x3ffd9, 0x3ffda, 0x3ffdb, 0x7ffb8, 0x7ffb9, + 0x7ffba, 0x7ffbb, 0x7ffbc, 0x7ffbd, 0x7ffbe, 0x7ffbf, 0x7ffc0, 0x7ffc1, + 0x7ffc2, 0x7ffc3, 0x7ffc4, 0x7ffc5, 0x7ffc6, 0x7ffc7, 0x7ffc8, 0x7ffc9, + 0x7ffca, 0x7ffcb, 0x7ffcc, 0x7ffcd, 0x7ffce, 0x7ffcf, 0x7ffd0, 0x7ffd1, + 0x7ffd2, 0x7ffd3, 0x1ffe6, 0x3ffd4, 0x0fff0, 0x1ffe9, 0x3ffd5, 0x1ffe7, + 0x0fff1, 0x0ffec, 0x0ffed, 0x0ffee, 0x07ff4, 0x03ff9, 0x03ff7, 0x01ffa, + 0x01ff9, 0x00ffb, 0x007fc, 0x003fc, 0x001fd, 0x000fd, 0x0007d, 0x0003d, + 0x0001d, 0x0000d, 0x00005, 0x00001, 0x00000, 0x00004, 0x0000c, 0x0001c, + 0x0003c, 0x0007c, 0x000fc, 0x001fc, 0x003fd, 0x00ffa, 0x01ff8, 0x03ff6, + 0x03ff8, 0x07ff5, 0x0ffef, 0x1ffe8, 0x0fff2, 0x7ffd4, 0x7ffd5, 0x7ffd6, + 0x7ffd7, 0x7ffd8, 0x7ffd9, 0x7ffda, 0x7ffdb, 0x7ffdc, 0x7ffdd, 0x7ffde, + 0x7ffdf, 0x7ffe0, 0x7ffe1, 0x7ffe2, 0x7ffe3, 0x7ffe4, 0x7ffe5, 0x7ffe6, + 0x7ffe7, 0x7ffe8, 0x7ffe9, 0x7ffea, 0x7ffeb, 0x7ffec, 0x7ffed, 0x7ffee, + 0x7ffef, 0x7fff0, 0x7fff1, 0x7fff2, 0x7fff3, 0x7fff4, 0x7fff5, 0x7fff6, + 0x7fff7, 0x7fff8, 0x7fff9, 0x7fffa, 0x7fffb, 0x7fffc, 0x7fffd, 0x7fffe, + 0x7ffff +]; +const ENV_1_5DB_T_LENS: &[u8; 121] = &[ + 18, 18, 18, 18, 18, 18, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 17, 18, 16, 17, 18, 17, + 16, 16, 16, 16, 15, 14, 14, 13, + 13, 12, 11, 10, 9, 8, 7, 6, + 5, 4, 3, 2, 2, 3, 4, 5, + 6, 7, 8, 9, 10, 12, 13, 14, + 14, 15, 16, 17, 16, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19 +]; + +const ENV_BAL_1_5DB_F_BITS: &[u32; 49] = &[ + 0x3ffe2, 0x3ffe3, 0x3ffe4, 0x3ffe5, 0x3ffe6, 0x3ffe7, 0x3ffe8, 0x3ffe9, + 0x3ffea, 0x3ffeb, 0x3ffec, 0x3ffed, 0x3ffee, 0x3ffef, 0x3fff0, 0x0fff7, + 0x1fff0, 0x03ffc, 0x007fe, 0x007fc, 0x000fe, 0x0007e, 0x0000e, 0x00002, + 0x00000, 0x00006, 0x0001e, 0x0003e, 0x001fe, 0x007fd, 0x00ffe, 0x07ffa, + 0x0fff6, 0x3fff1, 0x3fff2, 0x3fff3, 0x3fff4, 0x3fff5, 0x3fff6, 0x3fff7, + 0x3fff8, 0x3fff9, 0x3fffa, 0x3fffb, 0x3fffc, 0x3fffd, 0x3fffe, 0x7fffe, + 0x7ffff +]; +const ENV_BAL_1_5DB_F_LENS: &[u8; 49] = &[ + 18, 18, 18, 18, 18, 18, 18, 18, + 18, 18, 18, 18, 18, 18, 18, 16, + 17, 14, 11, 11, 8, 7, 4, 2, + 1, 3, 5, 6, 9, 11, 12, 15, + 16, 18, 18, 18, 18, 18, 18, 18, + 18, 18, 18, 18, 18, 18, 18, 19, + 19 +]; +const ENV_BAL_1_5DB_T_BITS: &[u32; 49] = &[ + 0x0ffe4, 0x0ffe5, 0x0ffe6, 0x0ffe7, 0x0ffe8, 0x0ffe9, 0x0ffea, 0x0ffeb, + 0x0ffec, 0x0ffed, 0x0ffee, 0x0ffef, 0x0fff0, 0x0fff1, 0x0fff2, 0x0fff3, + 0x0fff4, 0x0ffe2, 0x00ffc, 0x007fc, 0x001fe, 0x0007e, 0x0001e, 0x00006, + 0x00000, 0x00002, 0x0000e, 0x0003e, 0x000fe, 0x007fd, 0x00ffd, 0x07ff0, + 0x0ffe3, 0x0fff5, 0x0fff6, 0x0fff7, 0x0fff8, 0x0fff9, 0x0fffa, 0x1fff6, + 0x1fff7, 0x1fff8, 0x1fff9, 0x1fffa, 0x1fffb, 0x1fffc, 0x1fffd, 0x1fffe, + 0x1ffff +]; +const ENV_BAL_1_5DB_T_LENS: &[u8; 49] = &[ + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 12, 11, 9, 7, 5, 3, + 1, 2, 4, 6, 8, 11, 12, 15, + 16, 16, 16, 16, 16, 16, 16, 17, + 17, 17, 17, 17, 17, 17, 17, 17, + 17 +]; + +const ENV_3_0DB_F_BITS: &[u32; 63] = &[ + 0xffff0, 0xffff1, 0xffff2, 0xffff3, 0xffff4, 0xffff5, 0xffff6, 0x3fff3, + 0x7fff5, 0x7ffee, 0x7ffef, 0x7fff6, 0x3fff4, 0x3fff2, 0xffff7, 0x7fff0, + 0x1fff5, 0x3fff0, 0x1fff4, 0x0fff7, 0x0fff6, 0x07ff8, 0x03ffb, 0x00ffd, + 0x007fd, 0x003fd, 0x001fd, 0x000fd, 0x0003e, 0x0000e, 0x00002, 0x00000, + 0x00006, 0x0001e, 0x000fc, 0x001fc, 0x003fc, 0x007fc, 0x00ffc, 0x01ffc, + 0x03ffa, 0x07ff9, 0x07ffa, 0x0fff8, 0x0fff9, 0x1fff6, 0x1fff7, 0x3fff5, + 0x3fff6, 0x3fff1, 0xffff8, 0x7fff1, 0x7fff2, 0x7fff3, 0xffff9, 0x7fff7, + 0x7fff4, 0xffffa, 0xffffb, 0xffffc, 0xffffd, 0xffffe, 0xfffff +]; +const ENV_3_0DB_F_LENS: &[u8; 63] = &[ + 20, 20, 20, 20, 20, 20, 20, 18, + 19, 19, 19, 19, 18, 18, 20, 19, + 17, 18, 17, 16, 16, 15, 14, 12, + 11, 10, 9, 8, 6, 4, 2, 1, + 3, 5, 8, 9, 10, 11, 12, 13, + 14, 15, 15, 16, 16, 17, 17, 18, + 18, 18, 20, 19, 19, 19, 20, 19, + 19, 20, 20, 20, 20, 20, 20 +]; +const ENV_3_0DB_T_BITS: &[u32; 63] = &[ + 0x3ffed, 0x3ffee, 0x7ffde, 0x7ffdf, 0x7ffe0, 0x7ffe1, 0x7ffe2, 0x7ffe3, + 0x7ffe4, 0x7ffe5, 0x7ffe6, 0x7ffe7, 0x7ffe8, 0x7ffe9, 0x7ffea, 0x7ffeb, + 0x7ffec, 0x1fff4, 0x0fff7, 0x0fff9, 0x0fff8, 0x03ffb, 0x03ffa, 0x03ff8, + 0x01ffa, 0x00ffc, 0x007fc, 0x000fe, 0x0003e, 0x0000e, 0x00002, 0x00000, + 0x00006, 0x0001e, 0x0007e, 0x001fe, 0x007fd, 0x01ffb, 0x03ff9, 0x03ffc, + 0x07ffa, 0x0fff6, 0x1fff5, 0x3ffec, 0x7ffed, 0x7ffee, 0x7ffef, 0x7fff0, + 0x7fff1, 0x7fff2, 0x7fff3, 0x7fff4, 0x7fff5, 0x7fff6, 0x7fff7, 0x7fff8, + 0x7fff9, 0x7fffa, 0x7fffb, 0x7fffc, 0x7fffd, 0x7fffe, 0x7ffff +]; +const ENV_3_0DB_T_LENS: &[u8; 63] = &[ + 18, 18, 19, 19, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 17, 16, 16, 16, 14, 14, 14, + 13, 12, 11, 8, 6, 4, 2, 1, + 3, 5, 7, 9, 11, 13, 14, 14, + 15, 16, 17, 18, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 19, 19, 19, 19, 19 +]; + +const ENV_BAL_3_0DB_F_BITS: &[u16; 25] = &[ + 0x1ff7, 0x1ff8, 0x1ff9, 0x1ffa, 0x1ffb, 0x3ff8, 0x3ff9, 0x07fc, + 0x00fe, 0x007e, 0x000e, 0x0002, 0x0000, 0x0006, 0x001e, 0x003e, + 0x01fe, 0x0ffa, 0x1ff6, 0x3ffa, 0x3ffb, 0x3ffc, 0x3ffd, 0x3ffe, + 0x3fff +]; +const ENV_BAL_3_0DB_F_LENS: &[u8; 25] = &[ + 13, 13, 13, 13, 13, 14, 14, 11, + 8, 7, 4, 2, 1, 3, 5, 6, + 9, 12, 13, 14, 14, 14, 14, 14, + 14 +]; +const ENV_BAL_3_0DB_T_BITS: &[u16; 25] = &[ + 0x1ff2, 0x1ff3, 0x1ff4, 0x1ff5, 0x1ff6, 0x1ff7, 0x1ff8, 0x0ff8, + 0x00fe, 0x007e, 0x000e, 0x0006, 0x0000, 0x0002, 0x001e, 0x003e, + 0x01fe, 0x1ff9, 0x1ffa, 0x1ffb, 0x1ffc, 0x1ffd, 0x1ffe, 0x3ffe, + 0x3fff +]; +const ENV_BAL_3_0DB_T_LENS: &[u8; 25] = &[ + 13, 13, 13, 13, 13, 13, 13, 12, + 8, 7, 4, 3, 1, 2, 5, 6, + 9, 13, 13, 13, 13, 13, 13, 14, + 14 +]; + +const NOISE_3_0DB_T_BITS: &[u16; 63] = &[ + 0x1fce, 0x1fcf, 0x1fd0, 0x1fd1, 0x1fd2, 0x1fd3, 0x1fd4, 0x1fd5, + 0x1fd6, 0x1fd7, 0x1fd8, 0x1fd9, 0x1fda, 0x1fdb, 0x1fdc, 0x1fdd, + 0x1fde, 0x1fdf, 0x1fe0, 0x1fe1, 0x1fe2, 0x1fe3, 0x1fe4, 0x1fe5, + 0x1fe6, 0x1fe7, 0x07f2, 0x00fd, 0x003e, 0x000e, 0x0006, 0x0000, + 0x0002, 0x001e, 0x00fc, 0x03f8, 0x1fcc, 0x1fe8, 0x1fe9, 0x1fea, + 0x1feb, 0x1fec, 0x1fcd, 0x1fed, 0x1fee, 0x1fef, 0x1ff0, 0x1ff1, + 0x1ff2, 0x1ff3, 0x1ff4, 0x1ff5, 0x1ff6, 0x1ff7, 0x1ff8, 0x1ff9, + 0x1ffa, 0x1ffb, 0x1ffc, 0x1ffd, 0x1ffe, 0x3ffe, 0x3fff +]; +const NOISE_3_0DB_T_LENS: &[u8; 63] = &[ + 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 11, 8, 6, 4, 3, 1, + 2, 5, 8, 10, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 14, 14 +]; +const NOISE_BAL_3_0DB_T_BITS: &[u8; 25] = &[ + 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, + 0xf4, 0xf5, 0x1c, 0x02, 0x00, 0x06, 0x3a, 0xf6, + 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, + 0xff +]; +const NOISE_BAL_3_0DB_T_LENS: &[u8; 25] = &[ + 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 5, 2, 1, 3, 6, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8 +]; diff --git a/nihav-mpeg/src/codecs/aac/sbr/dsp.rs b/nihav-mpeg/src/codecs/aac/sbr/dsp.rs new file mode 100644 index 0000000..a9762b0 --- /dev/null +++ b/nihav-mpeg/src/codecs/aac/sbr/dsp.rs @@ -0,0 +1,328 @@ +pub use nihav_codec_support::dsp::fft::*; +pub use nihav_codec_support::dsp::mdct::*; + +pub struct SBRDSP { + imdct: IMDCT, + tmp0: [f32; 64], + tmp1: [f32; 64], + tmp2: [f32; 64], + tmp3: [f32; 64], +} + +impl SBRDSP { + pub fn new() -> Self { + Self { + imdct: IMDCT::new(128, false), + tmp0: [0.0; 64], + tmp1: [0.0; 64], + tmp2: [0.0; 64], + tmp3: [0.0; 64], + } + } +} + +#[derive(Clone)] +pub struct SBRAnalysis { + hist: [f32; 320], + pos: usize, +} + +impl SBRAnalysis { + pub fn new() -> Self { + Self { + hist: [0.0; 320], + pos: 0, + } + } + pub fn analysis(&mut self, dsp: &mut SBRDSP, samples: &[f32], dst: &mut [FFTComplex; 64]) { + self.pos += self.hist.len() - 32; + if self.pos >= self.hist.len() { + self.pos -= self.hist.len(); + } + for (dst, &src) in self.hist[self.pos..][..32].iter_mut().zip(samples.iter().rev()) { + *dst = src; + } + + let sum = &mut dsp.tmp0; + *sum = [0.0; 64]; + for (n, dst) in sum.iter_mut().enumerate() { + *dst = 0.0; + for j in 0..5 { + *dst += self.hist[(self.pos + n + j * 64) % self.hist.len()] * SBR_WINDOW[(n + j * 64) * 2]; + } + } + + let src = &mut dsp.tmp1; + + src[0] = sum[0]; + src[1] = sum[1]; + for k in (1..31).step_by(2) { + src[k * 2] = -sum[64 - k]; + src[k * 2 + 1] = sum[k + 1]; + src[k * 2 + 2] = -sum[63 - k]; + src[k * 2 + 3] = sum[k + 2]; + } + src[62] = -sum[33]; + src[63] = sum[32]; + + let out = &mut dsp.tmp2; + dsp.imdct.imdct_half(src, out); + + *dst = [FFTC_ZERO; 64]; + for (k, dst) in dst[..32].iter_mut().enumerate() { + dst.re = -out[63 - k]; + dst.im = out[k]; + } + } +} + +#[derive(Clone)] +pub struct SBRSynthesis { + hist: [f32; 1280], + pos: usize, +} + +impl SBRSynthesis { + pub fn new() -> Self { + Self { + hist: [0.0; 1280], + pos: 0, + } + } + pub fn synthesis(&mut self, dsp: &mut SBRDSP, src: &[FFTComplex; 64], dst: &mut [f32]) { + self.pos += self.hist.len() - 128; + if self.pos >= self.hist.len() { + self.pos -= self.hist.len(); + } + let re = &mut dsp.tmp0; + let im = &mut dsp.tmp1; + for ((re, im), src) in re.iter_mut().zip(im.iter_mut()).zip(src.iter()) { + *re = src.re / 32.0; + *im = src.im / 32.0; + } + for pair in im.chunks_mut(2) { + pair[1] = -pair[1]; + } + let out0 = &mut dsp.tmp2; + let out1 = &mut dsp.tmp3; + dsp.imdct.imdct_half(re, out0); + dsp.imdct.imdct_half(im, out1); + + for (k, (&a, &b)) in out1.iter().zip(out0.iter().rev()).enumerate() { + self.hist[self.pos..][k] = a - b; + self.hist[self.pos..][127 - k] = a + b; + } + + for (k, dst) in dst[..64].iter_mut().enumerate() { + *dst = 0.0; + for n in 0..5 { + *dst += self.hist[(self.pos + 256 * n + k) % self.hist.len()] * SBR_WINDOW[128 * n + k]; + *dst += self.hist[(self.pos + 256 * n + k + 192) % self.hist.len()] * SBR_WINDOW[128 * n + k + 64]; + } + } + } +} + +/*#[derive(Clone)] +pub struct SBRSynthesisDownsampled { + hist: [f32; 640], + pos: usize, +} + +impl SBRSynthesisDownsampled { + pub fn new() -> Self { + Self { + hist: [0.0; 640], + pos: 0, + } + } + pub fn synthesis(&mut self, dsp: &mut SBRDSP, src: &[FFTComplex; 64], dst: &mut [f32]) { + self.pos += self.hist.len() - 64; + if self.pos >= self.hist.len() { + self.pos -= self.hist.len(); + } + + let (p0, p1) = dsp.tmp0.split_at_mut(32); + let out = &mut dsp.tmp1; + for (n, (dst0, dst1)) in p0.iter_mut().zip(p1.iter_mut()).enumerate() { + *dst0 = -src[n].re / 32.0; + *dst1 = src[31 - n].im / 32.0; + } + dsp.imdct.imdct_half(&dsp.tmp0, out); + for (k, pair) in out.chunks(2).rev().enumerate() { + self.hist[self.pos..][k] = pair[1]; + self.hist[self.pos..][63 - k] = -pair[0]; + } + + for (k, dst) in dst[..32].iter_mut().enumerate() { + *dst = 0.0; + for n in 0..5 { + *dst += self.hist[(self.pos + 128 * n + k) % self.hist.len()] * SBR_WINDOW[128 * n + k]; + *dst += self.hist[(self.pos + 128 * n + k + 96) % self.hist.len()] * SBR_WINDOW[128 * n + k + 64]; + } + } + } +}*/ + +const SBR_WINDOW: [f32; 640] = [ + 0.0, -0.00055252865047, -0.00056176925738, -0.00049475180896, + -0.00048752279712, -0.00048937912498, -0.00050407143497, -0.00052265642972, + -0.00054665656337, -0.00056778025613, -0.00058709304852, -0.00061327473938, + -0.00063124935319, -0.00065403333621, -0.00067776907764, -0.00069416146273, + -0.00071577364744, -0.00072550431222, -0.00074409418541, -0.00074905980532, + -0.0007681371927, -0.00077248485949, -0.00078343322877, -0.00077798694927, + -0.000780366471, -0.00078014496257, -0.0007757977331, -0.00076307935757, + -0.00075300014201, -0.00073193571525, -0.00072153919876, -0.00069179375372, + -0.00066504150893, -0.00063415949025, -0.0005946118933, -0.00055645763906, + -0.00051455722108, -0.00046063254803, -0.00040951214522, -0.00035011758756, + -0.00028969811748, -0.0002098337344, -0.00014463809349, -0.00006173344072, + 0.00001349497418, 0.00010943831274, 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-0.00056778025613, + -0.00054665656337, -0.00052265642972, -0.00050407143497, -0.00048937912498, + -0.00048752279712, -0.00049475180896, -0.00056176925738, -0.00055252865047 +]; diff --git a/nihav-mpeg/src/codecs/aac/sbr/mod.rs b/nihav-mpeg/src/codecs/aac/sbr/mod.rs new file mode 100644 index 0000000..fb455cb --- /dev/null +++ b/nihav-mpeg/src/codecs/aac/sbr/mod.rs @@ -0,0 +1,427 @@ +use nihav_core::codecs::{DecoderResult, DecoderError}; +use nihav_core::io::bitreader::*; + +mod bs; +mod dsp; +mod synth; + +pub use bs::{SBRCodebooks, sbr_read_sce, sbr_read_cpe}; +pub use dsp::SBRDSP; +pub use synth::SBRChannel; + +pub const NUM_ENVELOPES: usize = 8; +pub const NUM_PATCHES: usize = 5; +pub const SBR_BANDS: usize = 64; +pub const QMF_DELAY: usize = 8; +pub const HF_ADJ: usize = 2; +pub const MAX_SLOTS: usize = 16; + +#[derive(Clone, Copy, Debug)] +pub struct SBRHeader { + pub amp_res: bool, + start_freq: usize, + stop_freq: usize, + xover_band: usize, + freq_scale: u8, + alter_scale: bool, + noise_bands: u8, + limiter_bands: u8, + limiter_gains: u8, + interpol_freq: bool, + smoothing_mode: bool, +} + +impl SBRHeader { + pub fn new() -> Self { + let mut obj: Self = unsafe { std::mem::zeroed() }; + obj.reset(); + obj + } + fn reset(&mut self) { + self.freq_scale = 2; + self.alter_scale = true; + self.noise_bands = 2; + self.limiter_bands = 2; + self.limiter_gains = 2; + self.interpol_freq = true; + self.smoothing_mode = true; + } + + pub fn read(br: &mut BitReader) -> DecoderResult { + let mut sbrh = Self::new(); + sbrh.reset(); + sbrh.amp_res = br.read_bool()?; + sbrh.start_freq = br.read(4)? as usize; + sbrh.stop_freq = br.read(4)? as usize; + sbrh.xover_band = br.read(3)? as usize; + br.skip(2)?; + let header_extra_1 = br.read_bool()?; + let header_extra_2 = br.read_bool()?; + if header_extra_1 { + sbrh.freq_scale = br.read(2)? as u8; + sbrh.alter_scale = br.read_bool()?; + sbrh.noise_bands = br.read(2)? as u8; + } + if header_extra_2 { + sbrh.limiter_bands = br.read(2)? as u8; + sbrh.limiter_gains = br.read(2)? as u8; + sbrh.interpol_freq = br.read_bool()?; + if !sbrh.interpol_freq { + return Err(DecoderError::NotImplemented); + } + sbrh.smoothing_mode = br.read_bool()?; + } + Ok(sbrh) + } + + pub fn differs_from(&self, rval: &Self) -> bool { + self.start_freq != rval.start_freq || + self.stop_freq != rval.stop_freq || + self.xover_band != rval.xover_band || + self.freq_scale != rval.freq_scale || + self.alter_scale != rval.alter_scale || + self.noise_bands != rval.noise_bands + } +} + +#[derive(Clone)] +pub struct SBRState { + num_env_bands: [usize; 2], + num_master: usize, + num_noise_bands: usize, + num_lim: usize, + k_x: usize, + low_to_high_res: [usize; SBR_BANDS], + high_to_low_res: [usize; SBR_BANDS], + f: [usize; SBR_BANDS], + f_low: [usize; SBR_BANDS], + f_noise: [usize; SBR_BANDS], + f_lim: [usize; SBR_BANDS], + patch_num_subbands: [usize; SBR_BANDS], + patch_start_subband: [usize; SBR_BANDS], + num_patches: usize, +} + +impl SBRState { + pub fn new() -> Self { + Self { + num_env_bands: [0; 2], + num_master: 0, + num_noise_bands: 0, + num_lim: 0, + k_x: 0, + low_to_high_res: [0; SBR_BANDS], + high_to_low_res: [0; SBR_BANDS], + f: [0; SBR_BANDS], + f_low: [0; SBR_BANDS], + f_noise: [0; SBR_BANDS], + f_lim: [0; SBR_BANDS], + patch_num_subbands: [0; SBR_BANDS], + patch_start_subband: [0; SBR_BANDS], + num_patches: 0, + } + } + pub fn init(&mut self, hdr: &SBRHeader, srate: u32) -> DecoderResult<()> { + let offset_tab = match srate { + 0..=16000 => &SBR_OFFSETS[0], + 16001..=22050 => &SBR_OFFSETS[1], + 22051..=24000 => &SBR_OFFSETS[2], + 24001..=32000 => &SBR_OFFSETS[3], + 32001..=64000 => &SBR_OFFSETS[4], + _ => &SBR_OFFSETS[5], + }; + let smult = match srate { + 0..=31999 => 3000, + 32000..=63999 => 4000, + _ => 5000, + }; + let start_min = (128 * smult + srate / 2) / srate; + let stop_min = (128 * smult * 2 + srate / 2) / srate; + + let k0 = ((start_min as i32) + i32::from(offset_tab[hdr.start_freq])).max(0) as usize; + let k2 = (match hdr.stop_freq { + 14 => 2 * k0, + 15 => 3 * k0, + _ => { + let mut stop_dk = [0; 14]; + generate_vdk(&mut stop_dk, stop_min as usize, SBR_BANDS, 13); + let dk_sum: usize = stop_dk[..hdr.stop_freq].iter().sum(); + (stop_min as usize) + dk_sum + }, + }).min(SBR_BANDS); + + let max_bands = match srate { + 0..=32000 => 48, + 32001..=47999 => 35, + _ => 32, + }; + validate!(k2 - k0 <= max_bands); + + self.num_master = calculate_master_frequencies(&mut self.f, k0, k2, hdr); + let num_high = self.num_master - hdr.xover_band; + let num_low = (num_high + 1) / 2; // INT(num_high / 2) + (num_high - 2 * INT(num_high / 2)) + + self.num_env_bands = [num_low, num_high]; + + let f_high = &self.f[hdr.xover_band..]; + let m = f_high[num_high] - f_high[0]; + let k_x = f_high[0]; + self.k_x = k_x; + self.f_low = [0; SBR_BANDS]; + if (num_high & 1) == 0 { + for k in 0..=num_low { + self.f_low[k] = f_high[k * 2]; + } + } else { + self.f_low[0] = f_high[0]; + for k in 1..=num_low { + self.f_low[k] = f_high[k * 2 - 1]; + } + } + + let high_src = &f_high[..=num_high]; + let low_src = &self.f_low[..=num_low]; + for (dst, low) in self.high_to_low_res.iter_mut().zip(low_src.iter()) { + if let Ok(idx) = high_src.binary_search(low) { + *dst = idx; + } else { + return Err(DecoderError::Bug); + } + } + for (dst, high) in self.low_to_high_res.iter_mut().zip(high_src.iter()) { + match low_src.binary_search(high) { + Ok(idx) | Err(idx) => *dst = idx, + }; + } + + let num_q = (((hdr.noise_bands as f32) * ((k2 as f32) / (k_x as f32)).log2()).round() as usize).max(1); + self.num_noise_bands = num_q; + self.f_noise = [0; SBR_BANDS]; + let mut prev = 0; + self.f_noise[0] = self.f_low[0]; + for k in 1..=num_q { + let idx = prev + ((num_low - prev) / (num_q + 1 - k)); + self.f_noise[k] = self.f_low[idx]; + prev = idx; + } + + let mut num_patches = 0; + self.patch_num_subbands = [0; SBR_BANDS]; + self.patch_start_subband = [0; SBR_BANDS]; + let mut msb = k0; + let mut usb = k_x; + let goal_sb = ((2048000 + srate / 2) / srate) as usize; + let last_band = k_x + m; + let mut k = if goal_sb < last_band { + let mut kk = 0; + for i in 0..self.num_master { + if self.f[i] >= goal_sb { + break; + } + kk = i + 1; + } + kk + } else { + self.num_master + }; + loop { + let mut sb; + let mut odd; + let mut j = k; + loop { + sb = self.f[j]; + odd = (sb - 2 + k0) & 1; + if sb <= k0 + msb - 1 - odd { + break; + } + j -= 1; + } + + self.patch_num_subbands[num_patches] = sb.saturating_sub(usb); + self.patch_start_subband[num_patches] = k0 - odd - self.patch_num_subbands[num_patches]; + + if self.patch_num_subbands[num_patches] > 0 { + usb = sb; + msb = sb; + num_patches += 1; + } else { + msb = k_x; + } + + if self.f[k] < sb + 3 { + k = self.num_master; + } + + if sb == last_band { + break; + } + } + if (num_patches > 1) && (self.patch_num_subbands[num_patches - 1] < 3) { + num_patches -= 1; + } + validate!(num_patches <= NUM_PATCHES); + self.num_patches = num_patches; + + self.f_lim = [0; SBR_BANDS]; + let num_l = if hdr.limiter_bands == 0 { + self.f_lim[0] = self.f_low[0]; + self.f_lim[1] = self.f_low[num_low]; + 1 + } else { + let lim_bands = match hdr.limiter_bands { + 1 => 1.2f32, + 2 => 2.0, + _ => 3.0, + }; + let mut patch_borders = [0; NUM_PATCHES + 1]; + patch_borders[0] = k_x; + for k in 0..num_patches { + patch_borders[k + 1] = patch_borders[k] + self.patch_num_subbands[k]; + } + self.f_lim = self.f_low; + let f_lim_ptr = &mut self.f_lim[..num_low + num_patches]; + for &pborder in patch_borders[1..num_patches].iter() { + let mut i = 0; + for &el in f_lim_ptr.iter() { + if el > pborder { + break; + } + i += 1; + } + for j in (i..num_low + num_patches - 1).rev() { + f_lim_ptr[j + 1] = f_lim_ptr[j]; + } + f_lim_ptr[i] = pborder; + } + let mut nr_lim = num_low + num_patches - 1; + let mut k = 1; + let pbord = &patch_borders[..=num_patches]; + while k <= nr_lim { + let n_octaves = ((self.f_lim[k] as f32) / (self.f_lim[k - 1] as f32)).log2(); + if (n_octaves * lim_bands) < 0.49 { + if self.f_lim[k] == self.f_lim[k - 1] || !pbord.contains(&self.f_lim[k]) { + for l in k..nr_lim { + self.f_lim[l] = self.f_lim[l + 1]; + } + nr_lim -= 1; + } else if !pbord.contains(&self.f_lim[k - 1]) { + for l in (k - 1)..nr_lim { + self.f_lim[l] = self.f_lim[l + 1]; + } + nr_lim -= 1; + } else { + k += 1; + } + } else { + k += 1; + } + } + + nr_lim + }; + self.num_lim = num_l; + + Ok(()) + } +} + +fn generate_vdk(v_dk: &mut [usize], k0: usize, k1: usize, num_bands: usize) { + let mut last = k0; + let k0 = k0 as f64; + let factor = (k1 as f64) / k0; + for k in 0..num_bands { + let next = (k0 * factor.powf((k + 1) as f64 / (num_bands as f64))).round() as usize; + let newval = next - last; + last = next; + let mut idx = k; + for (j, &el) in v_dk[..k].iter().enumerate() { + if newval < el { + idx = j; + break; + } + } + for j in (idx..k).rev() { + v_dk[j + 1] = v_dk[j]; + } + v_dk[idx] = newval; + } +} + +fn calculate_master_frequencies(f: &mut [usize; SBR_BANDS], k0: usize, k2: usize, hdr: &SBRHeader) -> usize { + if hdr.freq_scale == 0 { + let (dk, num_bands) = if !hdr.alter_scale { + (1, 2 * ((k2 - k0) / 2)) + } else { + (2, 2 * ((k2 - k0 + 2) / (2 * 2))) + }; + let k2_achieved = k0 + num_bands * dk; + let mut k2_diff = (k2 as isize) - (k2_achieved as isize); + let mut v_dk = [dk; SBR_BANDS]; + if k2_diff < 0 { + let mut k = 0; + while k2_diff != 0 { + v_dk[k] -= 1; + k += 1; + k2_diff += 1; + } + } else if k2_diff > 0 { + let mut k = num_bands - 1; + while k2_diff != 0 { + v_dk[k] += 1; + k -= 1; + k2_diff -= 1; + } + } + f[0] = k0; + for i in 0..num_bands { + f[i + 1] = f[i] + v_dk[i]; + } + + num_bands + } else { + let bands = 14 - hdr.freq_scale * 2; + let warp = if !hdr.alter_scale { 1.0f32 } else { 1.3f32 }; + let two_regions = (k2 as f32) / (k0 as f32) > 2.2449; + let k1 = if two_regions { 2 * k0 } else { k2 }; + let num_bands0 = 2 * (((bands as f32) * ((k1 as f32) / (k0 as f32)).log2() / 2.0).round() as usize); + let mut v_dk0 = [0; SBR_BANDS]; + generate_vdk(&mut v_dk0, k0, k1, num_bands0); + let mut v_k0 = [0; SBR_BANDS]; + v_k0[0] = k0; + for i in 0..num_bands0 { + v_k0[i + 1] = v_k0[i] + v_dk0[i]; + } + + if two_regions { + let num_bands1 = 2 * (((bands as f32) * ((k2 as f32) / (k1 as f32)).log2() / (2.0 * warp)).round() as usize); + let mut v_dk1 = [0; SBR_BANDS]; + generate_vdk(&mut v_dk1, k1, k2, num_bands1); + let max_vdk0 = v_dk0[num_bands0 - 1]; + if v_dk1[0] < max_vdk0 { + let change = (max_vdk0 - v_dk1[0]).min((v_dk1[num_bands1 - 1] - v_dk1[0]) / 2); + v_dk1[0] += change; + v_dk1[num_bands1 - 1] -= change; + } + let mut v_k1 = [0; SBR_BANDS]; + v_k1[0] = k1; + for i in 0..num_bands1 { + v_k1[i + 1] = v_k1[i] + v_dk1[i]; + } + f[..=num_bands0].copy_from_slice(&v_k0[..=num_bands0]); + f[num_bands0 + 1..][..=num_bands1].copy_from_slice(&v_k1[1..][..=num_bands1]); + num_bands0 + num_bands1 + } else { + f[..=num_bands0].copy_from_slice(&v_k0[..=num_bands0]); + num_bands0 + } + } +} + +const SBR_OFFSETS: [[i8; 16]; 6] = [ + [ -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7 ], // 16kHz + [ -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13 ], // 22kHz + [ -5, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16 ], // 24kHz + [ -6, -4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16 ], // 32kHz + [ -4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 20 ], // 44kHz + [ -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 20, 24 ] // 64kHz +]; diff --git a/nihav-mpeg/src/codecs/aac/sbr/synth.rs b/nihav-mpeg/src/codecs/aac/sbr/synth.rs new file mode 100644 index 0000000..e06a8c1 --- /dev/null +++ b/nihav-mpeg/src/codecs/aac/sbr/synth.rs @@ -0,0 +1,1130 @@ +use super::*; +use super::bs::FrameClass; +use super::dsp::{SBRAnalysis, SBRSynthesis}; +use nihav_codec_support::dsp::fft::{FFTComplex, FFTC_ZERO}; + +const RANGE: f32 = 65536.0; + +const SMOOTH_DELAY: usize = 4; + +const NEW_BW: [[f32; 4]; 4] = [ + [ 0.0, 0.6, 0.9, 0.98 ], + [ 0.6, 0.75, 0.9, 0.98 ], + [ 0.0, 0.75, 0.9, 0.98 ], + [ 0.0, 0.75, 0.9, 0.98 ] +]; + +#[derive(Clone, Copy)] +pub enum QuantMode { + Single, + Left, + Right, +} + +#[derive(Clone)] +pub struct SBRChannel { + sbr_a: SBRAnalysis, + sbr_s: SBRSynthesis, + + w: [[FFTComplex; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + x: [[FFTComplex; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + x_high: [[FFTComplex; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + y: [[FFTComplex; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + prev_y: [[FFTComplex; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + + bw_array: [f32; SBR_BANDS], + old_bw_array: [f32; SBR_BANDS], + + pub qmode: QuantMode, + pub fclass: FrameClass, + pub amp_res: bool, + pub num_env: usize, + prev_num_env: usize, + pub freq_res: [bool; NUM_ENVELOPES], + pub env_border: [usize; NUM_ENVELOPES], + pub noise_env_border: [usize; 3], + pub pointer: u8, + pub num_noise: usize, + pub last_env_end: usize, + + pub df_env: [bool; NUM_ENVELOPES], + pub df_noise: [bool; 2], + + pub invf_mode: [u8; NUM_PATCHES], + old_invf_mode: [u8; NUM_PATCHES], + + pub data_env: [[i8; SBR_BANDS]; NUM_PATCHES], + pub data_noise: [[i8; SBR_BANDS]; NUM_PATCHES], + pub data_env2: [[i8; SBR_BANDS]; NUM_PATCHES], + pub data_noise2: [[i8; SBR_BANDS]; NUM_PATCHES], + pub last_envelope: [i8; SBR_BANDS], + pub last_noise_env: [i8; SBR_BANDS], + pub last_freq_res: bool, + + pub add_harmonic: [bool; SBR_BANDS], + prev_l_a: i8, + + s_idx_mapped: [[bool; SBR_BANDS]; NUM_ENVELOPES], + prev_s_idx_mapped: [bool; SBR_BANDS], + index_sine: usize, + index_noise: usize, + g_temp: [[f32; SBR_BANDS]; MAX_SLOTS * 2 + QMF_DELAY + SMOOTH_DELAY], + q_temp: [[f32; SBR_BANDS]; MAX_SLOTS * 2 + QMF_DELAY + SMOOTH_DELAY], +} + +impl SBRChannel { + pub fn new() -> Self { + Self { + sbr_a: SBRAnalysis::new(), + sbr_s: SBRSynthesis::new(), + + w: [[FFTC_ZERO; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + x: [[FFTC_ZERO; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + x_high: [[FFTC_ZERO; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + y: [[FFTC_ZERO; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + prev_y: [[FFTC_ZERO; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2], + + bw_array: [0.0; SBR_BANDS], + old_bw_array: [0.0; SBR_BANDS], + + qmode: QuantMode::Single, + fclass: FrameClass::FixFix, + amp_res: false, + num_env: 0, + prev_num_env: 0, + freq_res: [false; NUM_ENVELOPES], + env_border: [0; NUM_ENVELOPES], + noise_env_border: [0; 3], + pointer: 0, + num_noise: 0, + last_env_end: 0, + + df_env: [false; NUM_ENVELOPES], + df_noise: [false; 2], + + invf_mode: [0; NUM_PATCHES], + old_invf_mode: [0; NUM_PATCHES], + + data_env: [[0; SBR_BANDS]; NUM_PATCHES], + data_noise: [[0; SBR_BANDS]; NUM_PATCHES], + data_env2: [[0; SBR_BANDS]; NUM_PATCHES], + data_noise2: [[0; SBR_BANDS]; NUM_PATCHES], + last_envelope: [0; SBR_BANDS], + last_noise_env: [0; SBR_BANDS], + last_freq_res: false, + + add_harmonic: [false; SBR_BANDS], + prev_l_a: -1, + + s_idx_mapped: [[false; SBR_BANDS]; NUM_ENVELOPES], + prev_s_idx_mapped: [false; SBR_BANDS], + index_sine: 0, + index_noise: 0, + g_temp: [[0.0; SBR_BANDS]; MAX_SLOTS * 2 + QMF_DELAY + SMOOTH_DELAY], + q_temp: [[0.0; SBR_BANDS]; MAX_SLOTS * 2 + QMF_DELAY + SMOOTH_DELAY], + } + } + + pub fn reset(&mut self) { + self.prev_y = [[FFTC_ZERO; SBR_BANDS]; QMF_DELAY + MAX_SLOTS * 2]; + self.old_bw_array = [0.0; SBR_BANDS]; + self.last_envelope = [0; SBR_BANDS]; + self.last_noise_env = [0; SBR_BANDS]; + self.last_freq_res = false; + self.last_env_end = 0; + self.prev_num_env = 0; + self.old_invf_mode = [0; NUM_PATCHES]; + self.prev_s_idx_mapped = [false; SBR_BANDS]; + self.index_sine = 0; + self.index_noise = 0; + } + + pub fn set_amp_res(&mut self, amp_res: bool) { + if self.fclass != FrameClass::FixFix || self.num_env != 1 { + self.amp_res = amp_res; + } else { + self.amp_res = false; + } + } + + pub fn analysis(&mut self, dsp: &mut SBRDSP, src: &[f32]) { + for (src, dst) in src.chunks(32).zip(self.w[QMF_DELAY..].iter_mut()) { + self.sbr_a.analysis(dsp, src, dst); + } + } + pub fn synthesis(&mut self, dsp: &mut SBRDSP, dst: &mut [f32]) { + for (src, dst) in self.x.iter().zip(dst.chunks_mut(64)) { + self.sbr_s.synthesis(dsp, src, dst); + } + } + pub fn bypass(&mut self) { + self.x.copy_from_slice(&self.w); + } + pub fn hf_generate(&mut self, state: &SBRState) { + for (x, w) in self.x.iter_mut().zip(self.w.iter()) { + x[..state.k_x].copy_from_slice(&w[..state.k_x]); + for el in x[state.k_x..].iter_mut() { + *el = FFTC_ZERO; + } + } + + let mut phi = [[[FFTC_ZERO; SBR_BANDS]; 3]; 3]; + let mut a0 = [FFTC_ZERO; SBR_BANDS]; + let mut a1 = [FFTC_ZERO; SBR_BANDS]; + let k0 = state.f[0]; + for (i, phi) in phi.iter_mut().enumerate() { + for (j, phi) in phi.iter_mut().enumerate().skip(1) { + let src0 = &self.x[HF_ADJ - i..][..MAX_SLOTS * 2 + 6 - 1]; + let src1 = &self.x[HF_ADJ - j..][..MAX_SLOTS * 2 + 6 - 1]; + for (slot0, slot1) in src0.iter().zip(src1.iter()) { + for (k, phi) in phi.iter_mut().take(k0).enumerate() { + *phi += slot0[k] * !slot1[k]; + } + } + } + } + for (k, (a0, a1)) in a0.iter_mut().zip(a1.iter_mut()).take(k0).enumerate() { + let phi12 = phi[1][2][k]; + let d_k = phi[2][2][k].re * phi[1][1][k].re - phi12.sq_modulus() / (1.0 + 1.0e-6); + + if d_k != 0.0 { + *a1 = (phi[0][1][k] * phi[1][2][k] - phi[0][2][k] * phi[1][1][k]).scale(1.0 / d_k); + } + if phi[1][1][k].re != 0.0 { + *a0 = -(phi[0][1][k] + *a1 * !phi[1][2][k]).scale(1.0 / phi[1][1][k].re); + } + if a0.sq_modulus() >= 4.0*4.0 || a1.sq_modulus() >= 4.0*4.0 { + *a0 = FFTC_ZERO; + *a1 = FFTC_ZERO; + } + } + + for k in 0..state.num_noise_bands { + let new_bw = NEW_BW[self.old_invf_mode[k] as usize][self.invf_mode[k] as usize]; + let old_bw = self.old_bw_array[k]; + let temp_bw = if new_bw < old_bw { + 0.75 * new_bw + 0.25 * old_bw + } else { + 0.90625 * new_bw + 0.09375 * old_bw + }; + self.bw_array[k] = if temp_bw >= 0.015625 { + temp_bw + } else { + 0.0 + }; + } + + for (l, x_high) in self.x_high.iter_mut().enumerate().skip(HF_ADJ).take(self.env_border[self.num_env - 1] * 2) { + *x_high = [FFTC_ZERO; SBR_BANDS]; + let mut dst_k = state.k_x; + for (&patch_start, &patch_len) in state.patch_start_subband[..state.num_patches].iter().zip(state.patch_num_subbands.iter()) { + for (k, dst) in x_high[dst_k..][..patch_len].iter_mut().enumerate() { + let p = patch_start + k; + let cur_x = self.x[l][p]; + let prev_x = self.x[l - 1][p]; + let pprev_x = self.x[l - 2][p]; + let g_k = match state.f_noise[..state.num_noise_bands].binary_search(&k) { + Ok(idx) | Err(idx) => idx.min(state.num_noise_bands - 1), + }; + let bw_val = self.bw_array[g_k]; + *dst = cur_x + a0[p] * prev_x.scale(bw_val) + a1[p] * pprev_x.scale(bw_val * bw_val); + } + dst_k += patch_len; + } + } + } + pub fn hf_adjust(&mut self, state: &SBRState, hdr: &SBRHeader) { + const LIM_GAIN: [f32; 4] = [0.70795, 1.0, 1.41254, 10000.0]; + const H_SMOOTH: [f32; 5] = [ + 1.0 / 3.0, 0.30150283239582, 0.21816949906249, 0.11516383427084, 0.03183050093751 + ]; + const PHI: [FFTComplex; 4] = [ + FFTComplex{ re: 1.0, im: 0.0 }, + FFTComplex{ re: 0.0, im: 1.0 }, + FFTComplex{ re: -1.0, im: 0.0 }, + FFTComplex{ re: 0.0, im: -1.0 }, + ]; + + let kx = state.k_x; + let km = state.f[state.num_master]; + let envelope_end = self.env_border[self.num_env - 1]; + + let high_start = state.f[..=state.num_master].binary_search(&state.k_x).unwrap(); + let f_high = &state.f[..=state.num_master][high_start..]; + let f_low = &state.f_low[..=state.num_env_bands[0]]; + + let l_a = match (self.fclass, self.pointer) { + (_, 0) => -1, + (FrameClass::FixFix, _) => -1, + (FrameClass::FixVar, _) | + (FrameClass::VarVar, _) => (self.num_env as i8) + 1 - (self.pointer as i8), + (FrameClass::VarFix, 1) => -1, + (FrameClass::VarFix, _) => (self.pointer as i8) - 1, + }; + + self.s_idx_mapped = [[false; SBR_BANDS]; NUM_ENVELOPES]; + for (l, s_idx_mapped) in self.s_idx_mapped[..self.num_env].iter_mut().enumerate() { + let mut start = f_high[0]; + for (i, &end) in f_high.iter().skip(1).enumerate() { + if self.add_harmonic[i] { + let mid = (start + end) / 2; + if ((l as i8) >= l_a) || self.prev_s_idx_mapped[mid] { + s_idx_mapped[mid] = true; + } + } + start = end; + } + } + self.prev_s_idx_mapped = self.s_idx_mapped[self.num_env - 1]; + + let mut s_mapped = [[false; SBR_BANDS]; NUM_ENVELOPES]; + for ((s_mapped, s_idx_mapped), &freq_res) in s_mapped.iter_mut().zip(self.s_idx_mapped[..self.num_env].iter()).zip(self.freq_res.iter()) { + let mut band_start = kx; + if freq_res { + for (&add_sine, &band_end) in self.add_harmonic.iter().zip(f_high[1..].iter()) { + for el in s_mapped[band_start..band_end].iter_mut() { + *el = add_sine; + } + band_start = band_end; + } + } else { + for &band_end in f_low[1..].iter() { + let add_sine = s_idx_mapped[band_start..band_end].contains(&true); + for el in s_mapped[band_start..band_end].iter_mut() { + *el = add_sine; + } + band_start = band_end; + } + } + } + + let mut e_orig_mapped = [[0.0; SBR_BANDS]; NUM_ENVELOPES]; + let (a, pan_offset) = if self.amp_res { (1.0, 12.0) } else { (0.5, 24.0) }; + match self.qmode { + QuantMode::Single => { + for (dst, (src, &freq_res)) in e_orig_mapped[..self.num_env].iter_mut().zip(self.data_env.iter().zip(self.freq_res.iter())) { + let bands = if freq_res { f_high } else { f_low }; + let mut start = kx; + for (&val, &band_end) in src.iter().zip(bands.iter().skip(1)) { + let scale = 2.0f32.powf(6.0 + f32::from(val) * a); + for dst in dst[start..band_end].iter_mut() { + *dst = scale; + } + start = band_end; + } + } + }, + QuantMode::Left => { + for (dst, ((e0, e1), &freq_res)) in e_orig_mapped[..self.num_env].iter_mut().zip(self.data_env.iter().zip(self.data_env2.iter()).zip(self.freq_res.iter())) { + let bands = if freq_res { f_high } else { f_low }; + let mut start = kx; + for ((&e0, &e1), &band_end) in e0.iter().zip(e1.iter()).zip(bands.iter().skip(1)) { + let scale = 2.0f32.powf(6.0 + f32::from(e0) * a + 1.0) / (1.0 + 2.0f32.powf((pan_offset - f32::from(e1)) * a)); + for dst in dst[start..band_end].iter_mut() { + *dst = scale; + } + start = band_end; + } + } + }, + QuantMode::Right => { + for (dst, ((e0, e1), &freq_res)) in e_orig_mapped[..self.num_env].iter_mut().zip(self.data_env2.iter().zip(self.data_env.iter()).zip(self.freq_res.iter())) { + let bands = if freq_res { f_high } else { f_low }; + let mut start = kx; + for ((&e0, &e1), &band_end) in e0.iter().zip(e1.iter()).zip(bands.iter().skip(1)) { + let scale = 2.0f32.powf(6.0 + f32::from(e0) * a + 1.0) / (1.0 + 2.0f32.powf((f32::from(e1) - pan_offset) * a)); + for dst in dst[start..band_end].iter_mut() { + *dst = scale; + } + start = band_end; + } + } + } + }; + let mut q_mapped = [[0.0; SBR_BANDS]; NUM_ENVELOPES]; + let mut start = 0; + let noise_env = [0, self.noise_env_border[0], self.noise_env_border[1]]; + match self.qmode { + QuantMode::Single => { + for (env_no, &env_end) in self.env_border[..self.num_env].iter().enumerate() { + let env_end = env_end; + let mut noise_env_no = 0; + for nenv in 0..self.num_noise { + if (start >= noise_env[nenv]) && (env_end <= noise_env[nenv + 1]) { + noise_env_no = nenv; + break; + } + } + let mut band_start = state.f_noise[0]; + for (noise_band, &band_end) in state.f_noise[1..=state.num_noise_bands].iter().enumerate() { + let scale = 2.0f32.powf(6.0 - f32::from(self.data_noise[noise_env_no][noise_band])); + for el in q_mapped[env_no][band_start..band_end].iter_mut() { + *el = scale; + } + band_start = band_end; + } + start = env_end; + } + }, + QuantMode::Left => { + for (env_no, &env_end) in self.env_border[..self.num_env].iter().enumerate() { + let env_end = env_end; + let mut noise_env_no = 0; + for nenv in 0..self.num_noise { + if (start >= noise_env[nenv]) && (env_end <= noise_env[nenv + 1]) { + noise_env_no = nenv; + break; + } + } + let mut band_start = state.f_noise[0]; + for (noise_band, &band_end) in state.f_noise[1..=state.num_noise_bands].iter().enumerate() { + let scale = 2.0f32.powf(6.0 - f32::from(self.data_noise[noise_env_no][noise_band]) + 1.0) / (1.0 + 2.0f32.powf(12.0 - f32::from(self.data_noise2[noise_env_no][noise_band]))); + for el in q_mapped[env_no][band_start..band_end].iter_mut() { + *el = scale; + } + band_start = band_end; + } + start = env_end; + } + }, + QuantMode::Right => { + for (env_no, &env_end) in self.env_border[..self.num_env].iter().enumerate() { + let env_end = env_end; + let mut noise_env_no = 0; + for nenv in 0..self.num_noise { + if (start >= noise_env[nenv]) && (env_end <= noise_env[nenv + 1]) { + noise_env_no = nenv; + break; + } + } + let mut band_start = state.f_noise[0]; + for (noise_band, &band_end) in state.f_noise[1..=state.num_noise_bands].iter().enumerate() { + let scale = 2.0f32.powf(6.0 - f32::from(self.data_noise2[noise_env_no][noise_band]) + 1.0) / (1.0 + 2.0f32.powf(f32::from(self.data_noise[noise_env_no][noise_band]) - 12.0)); + for el in q_mapped[env_no][band_start..band_end].iter_mut() { + *el = scale; + } + band_start = band_end; + } + start = env_end; + } + }, + }; + + let mut start = 0; + let mut e_curr = [[0.0f32; SBR_BANDS]; NUM_ENVELOPES]; + for (e_curr, &env_end) in e_curr.iter_mut().zip(self.env_border[..self.num_env].iter()) { + for slot in self.x_high[HF_ADJ..][(start * 2)..(env_end * 2)].iter() { + for (dst, x) in e_curr[kx..km].iter_mut().zip(slot[kx..km].iter()) { + *dst += x.sq_modulus(); + } + } + for el in e_curr[kx..km].iter_mut() { + *el *= RANGE * RANGE; + *el /= ((env_end - start) * 2) as f32; + } + start = env_end; + } + + const EPS: f32 = 1.0; + const EPS0: f32 = 1.0e-12; + let la_prev = if self.prev_l_a == (self.prev_num_env as i8) { 0 } else { -1 }; + let mut g_max_tmp; + let mut g_boost_tmp; + let mut g = [0.0; SBR_BANDS]; + let mut q_m = [0.0; SBR_BANDS]; + let mut s_m = [0.0; SBR_BANDS]; + let mut q_m_lim = [0.0; SBR_BANDS]; + let mut g_lim = [0.0; SBR_BANDS]; + let mut g_lim_boost = [[0.0; SBR_BANDS]; NUM_ENVELOPES]; + let mut q_m_lim_boost = [[0.0; SBR_BANDS]; NUM_ENVELOPES]; + let mut s_m_boost = [[0.0; SBR_BANDS]; NUM_ENVELOPES]; + for env in 0..self.num_env { + let mut start = kx; + g_max_tmp = [0.0; SBR_BANDS]; + g_boost_tmp = [0.0; SBR_BANDS]; + for (dst, &end) in g_max_tmp.iter_mut().zip(state.f_lim[1..=state.num_lim].iter()) { + let mut e_o_sum = EPS0; + let mut e_c_sum = EPS0; + for k in start..end { + e_o_sum += e_orig_mapped[env][k] as f32; + e_c_sum += e_curr[env][k]; + } + *dst = (e_o_sum / e_c_sum).sqrt() * LIM_GAIN[hdr.limiter_gains as usize]; + start = end; + } + for k in kx..km { + let e_orig = e_orig_mapped[env][k] as f32; + let q_orig = q_mapped[env][k] as f32; + let e_curr = e_curr[env][k]; + + q_m[k] = (e_orig * q_orig / (1.0 + q_orig)).sqrt(); + s_m[k] = if self.s_idx_mapped[env][k] { (e_orig / (1.0 + q_orig)).sqrt() } else { 0.0 }; + g[k] = if !s_mapped[env][k] { + let q_add = if (env as i8) != l_a && (env as i8) != la_prev { q_orig } else { 0.0 }; + (e_orig / ((EPS + e_curr) * (1.0 + q_add))).sqrt() + } else { + (e_orig / (EPS + e_curr) * q_orig / (1.0 + q_orig)).sqrt() + }; + + let mut lidx = 0; + for i in 0..state.num_lim { + if (state.f_lim[i] <= k) && (k < state.f_lim[i + 1]) { + lidx = i; + break; + } + } + + let g_max = g_max_tmp[lidx].min(1.0e5); + q_m_lim[k] = q_m[k].min(q_m[k] * g_max / g[k]); + g_lim[k] = g[k].min(g_max); + } + let mut start = kx; + for (lim_no, dst) in g_boost_tmp[..state.num_lim].iter_mut().enumerate() { + let end = state.f_lim[lim_no + 1]; + let mut nsum = EPS0; + let mut dsum = EPS0; + for k in start..end { + nsum += e_orig_mapped[env][k] as f32; + dsum += e_curr[env][k] * g_lim[k] * g_lim[k]; + if s_m[k] != 0.0 || (env as i8) == l_a || (env as i8) == la_prev { + dsum += s_m[k] * s_m[k]; + } else { + dsum += q_m_lim[k] * q_m_lim[k]; + } + } + *dst = (nsum / dsum).sqrt(); + let g_boost = dst.min(1.584893192); + for k in start..end { + g_lim_boost[env][k] = g_lim[k] * g_boost; + q_m_lim_boost[env][k] = q_m_lim[k] * g_boost; + s_m_boost[env][k] = s_m[k] * g_boost; + } + start = end; + } + } + + let mut env_map = [0; MAX_SLOTS * 2 + QMF_DELAY]; + let mut start = 0; + for (env, &env_end) in self.env_border[..self.num_env].iter().enumerate() { + for l in (start * 2)..(env_end * 2) { + env_map[l] = env; + } + start = env_end; + } + + let (ghead, gcur) = self.g_temp.split_at_mut(SMOOTH_DELAY); + let (qhead, qcur) = self.q_temp.split_at_mut(SMOOTH_DELAY); + if self.last_env_end > 0 { + ghead.copy_from_slice(&gcur[self.last_env_end - SMOOTH_DELAY..][..SMOOTH_DELAY]); + qhead.copy_from_slice(&qcur[self.last_env_end - SMOOTH_DELAY..][..SMOOTH_DELAY]); + let mut start = 0; + for (&env_end, (g_lim, q_lim)) in self.env_border[..self.num_env].iter().zip(g_lim_boost.iter().zip(q_m_lim_boost.iter())) { + for slot in (start * 2)..(env_end * 2) { + gcur[slot] = *g_lim; + qcur[slot] = *q_lim; + } + start = env_end; + } + } else { + for dst in ghead.iter_mut() { + *dst = g_lim_boost[0]; + } + for dst in qhead.iter_mut() { + *dst = q_m_lim_boost[0]; + } + let mut start = 0; + for (&env_end, (g_lim, q_lim)) in self.env_border[..self.num_env].iter().zip(g_lim_boost.iter().zip(q_m_lim_boost.iter())) { + for slot in (start * 2)..(env_end * 2) { + gcur[slot] = *g_lim; + qcur[slot] = *q_lim; + } + start = env_end; + } + } + + let mut g_filt = [[0.0; SBR_BANDS]; MAX_SLOTS * 2 + QMF_DELAY]; + let mut q_filt = [[0.0; SBR_BANDS]; MAX_SLOTS * 2 + QMF_DELAY]; + if !hdr.smoothing_mode { + for slot in 0..(envelope_end * 2) { + if (slot as i8) == (la_prev * 2) { + g_filt[slot].copy_from_slice(&self.g_temp[slot + SMOOTH_DELAY]); + q_filt[slot].copy_from_slice(&self.q_temp[slot + SMOOTH_DELAY]); + continue; + } + for k in kx..km { + let mut gsum = 0.0; + let mut qsum = 0.0; + for (i, &coef) in H_SMOOTH.iter().enumerate() { + gsum += self.g_temp[slot + SMOOTH_DELAY - i][k] * coef; + qsum += self.q_temp[slot + SMOOTH_DELAY - i][k] * coef; + } + g_filt[slot][k] = gsum; + q_filt[slot][k] = qsum; + } + } + } else { + g_filt.copy_from_slice(gcur); + q_filt.copy_from_slice(qcur); + } + + let index_noise = self.index_noise.wrapping_sub(self.env_border[0] * 2) & 511; + for (slot, y) in self.y.iter_mut().skip(HF_ADJ).take(envelope_end * 2).enumerate() { + for (k, y) in y.iter_mut().enumerate().skip(kx).take(km - kx) { + *y = self.x_high[HF_ADJ + slot][k].scale(g_filt[slot][k]); + + let smb = s_m_boost[env_map[slot]][k] / RANGE; + if smb != 0.0 { + let mut s = FFTComplex { re: smb, im: smb }; + if (k & 1) != 0 { + s = !s; + } + y.re += s.re * PHI[self.index_sine].re; + y.im += s.im * PHI[self.index_sine].im; + } else { + *y += SBR_NOISE_TABLE[(index_noise + slot * SBR_BANDS + k - kx + 1) & 511].scale(q_filt[slot][k] / RANGE); + } + } + self.index_sine = (self.index_sine + 1) & 3; + } + self.index_noise = (index_noise + km - kx) & 511; + + let end = if self.last_env_end != 0 { + (self.last_env_end - MAX_SLOTS) * 2 + } else { + 0 + }; + self.last_env_end = envelope_end; + for (i, x) in self.x[..end].iter_mut().enumerate() { + x[state.k_x..].copy_from_slice(&self.prev_y[HF_ADJ + MAX_SLOTS * 2 + i][state.k_x..]); + } + for (x, y) in self.x[end..].iter_mut().zip(self.y[HF_ADJ + end..].iter()) { + x[state.k_x..].copy_from_slice(&y[state.k_x..]); + } + + self.prev_l_a = l_a; + } + pub fn update_frame(&mut self) { + let (start, tail) = self.w.split_at_mut(QMF_DELAY); + start.copy_from_slice(&tail[tail.len() - QMF_DELAY..]); + self.prev_y = self.y; + self.old_invf_mode = self.invf_mode; + self.old_bw_array = self.bw_array; + + self.prev_num_env = self.num_env; + } +} + +const SBR_NOISE_TABLE: [FFTComplex; 512] = [ + FFTComplex{ re: -0.99948153278296, im: -0.59483417516607 }, + FFTComplex{ re: 0.97113454393991, im: -0.67528515225647 }, + FFTComplex{ re: 0.14130051758487, im: -0.95090983575689 }, + FFTComplex{ re: -0.47005496701697, im: -0.37340549728647 }, + FFTComplex{ re: 0.80705063769351, im: 0.29653668284408 }, + FFTComplex{ re: -0.38981478896926, im: 0.89572605717087 }, + FFTComplex{ re: -0.01053049862020, im: -0.66959058036166 }, + FFTComplex{ re: -0.91266367957293, im: -0.11522938140034 }, + FFTComplex{ re: 0.54840422910309, im: 0.75221367176302 }, + FFTComplex{ re: 0.40009252867955, im: -0.98929400334421 }, + FFTComplex{ re: -0.99867974711855, im: -0.88147068645358 }, + FFTComplex{ re: -0.95531076805040, im: 0.90908757154593 }, + FFTComplex{ re: -0.45725933317144, im: -0.56716323646760 }, + FFTComplex{ re: -0.72929675029275, im: -0.98008272727324 }, + FFTComplex{ re: 0.75622801399036, im: 0.20950329995549 }, + FFTComplex{ re: 0.07069442601050, im: -0.78247898470706 }, + FFTComplex{ re: 0.74496252926055, im: -0.91169004445807 }, + FFTComplex{ re: -0.96440182703856, im: -0.94739918296622 }, + FFTComplex{ re: 0.30424629369539, im: -0.49438267012479 }, + FFTComplex{ re: 0.66565033746925, im: 0.64652935542491 }, + FFTComplex{ re: 0.91697008020594, im: 0.17514097332009 }, + FFTComplex{ re: -0.70774918760427, im: 0.52548653416543 }, + FFTComplex{ re: -0.70051415345560, im: -0.45340028808763 }, + FFTComplex{ re: -0.99496513054797, im: -0.90071908066973 }, + FFTComplex{ re: 0.98164490790123, im: -0.77463155528697 }, + FFTComplex{ re: -0.54671580548181, im: -0.02570928536004 }, + FFTComplex{ re: -0.01689629065389, im: 0.00287506445732 }, + FFTComplex{ re: -0.86110349531986, im: 0.42548583726477 }, + FFTComplex{ re: -0.98892980586032, im: -0.87881132267556 }, + FFTComplex{ re: 0.51756627678691, im: 0.66926784710139 }, + FFTComplex{ re: -0.99635026409640, im: -0.58107730574765 }, + FFTComplex{ re: -0.99969370862163, im: 0.98369989360250 }, + FFTComplex{ re: 0.55266258627194, im: 0.59449057465591 }, + FFTComplex{ re: 0.34581177741673, im: 0.94879421061866 }, + FFTComplex{ re: 0.62664209577999, im: -0.74402970906471 }, + FFTComplex{ re: -0.77149701404973, im: -0.33883658042801 }, + FFTComplex{ re: -0.91592244254432, im: 0.03687901376713 }, + FFTComplex{ re: -0.76285492357887, im: -0.91371867919124 }, + FFTComplex{ re: 0.79788337195331, im: -0.93180971199849 }, + FFTComplex{ re: 0.54473080610200, im: -0.11919206037186 }, + FFTComplex{ re: -0.85639281671058, im: 0.42429854760451 }, + FFTComplex{ re: -0.92882402971423, im: 0.27871809078609 }, + FFTComplex{ re: -0.11708371046774, im: -0.99800843444966 }, + FFTComplex{ re: 0.21356749817493, im: -0.90716295627033 }, + FFTComplex{ re: -0.76191692573909, im: 0.99768118356265 }, + FFTComplex{ re: 0.98111043100884, im: -0.95854459734407 }, + FFTComplex{ re: -0.85913269895572, im: 0.95766566168880 }, + FFTComplex{ re: -0.93307242253692, im: 0.49431757696466 }, + FFTComplex{ re: 0.30485754879632, im: -0.70540034357529 }, + FFTComplex{ re: 0.85289650925190, im: 0.46766131791044 }, + FFTComplex{ re: 0.91328082618125, im: -0.99839597361769 }, + FFTComplex{ re: -0.05890199924154, im: 0.70741827819497 }, + FFTComplex{ re: 0.28398686150148, im: 0.34633555702188 }, + FFTComplex{ re: 0.95258164539612, im: -0.54893416026939 }, + FFTComplex{ re: -0.78566324168507, im: -0.75568541079691 }, + FFTComplex{ re: -0.95789495447877, im: -0.20423194696966 }, + FFTComplex{ re: 0.82411158711197, im: 0.96654618432562 }, + FFTComplex{ re: -0.65185446735885, im: -0.88734990773289 }, + FFTComplex{ re: -0.93643603134666, im: 0.99870790442385 }, + FFTComplex{ re: 0.91427159529618, im: -0.98290505544444 }, + FFTComplex{ re: -0.70395684036886, im: 0.58796798221039 }, + FFTComplex{ re: 0.00563771969365, im: 0.61768196727244 }, + FFTComplex{ re: 0.89065051931895, im: 0.52783352697585 }, + FFTComplex{ re: -0.68683707712762, im: 0.80806944710339 }, + FFTComplex{ re: 0.72165342518718, im: -0.69259857349564 }, + FFTComplex{ re: -0.62928247730667, im: 0.13627037407335 }, + FFTComplex{ re: 0.29938434065514, im: -0.46051329682246 }, + FFTComplex{ re: -0.91781958879280, im: -0.74012716684186 }, + FFTComplex{ re: 0.99298717043688, im: 0.40816610075661 }, + FFTComplex{ re: 0.82368298622748, im: -0.74036047190173 }, + FFTComplex{ re: -0.98512833386833, im: -0.99972330709594 }, + FFTComplex{ re: -0.95915368242257, im: -0.99237800466040 }, + FFTComplex{ re: -0.21411126572790, im: -0.93424819052545 }, + FFTComplex{ re: -0.68821476106884, im: -0.26892306315457 }, + FFTComplex{ re: 0.91851997982317, im: 0.09358228901785 }, + FFTComplex{ re: -0.96062769559127, im: 0.36099095133739 }, + FFTComplex{ re: 0.51646184922287, im: -0.71373332873917 }, + FFTComplex{ re: 0.61130721139669, im: 0.46950141175917 }, + FFTComplex{ re: 0.47336129371299, im: -0.27333178296162 }, + FFTComplex{ re: 0.90998308703519, im: 0.96715662938132 }, + FFTComplex{ re: 0.44844799194357, im: 0.99211574628306 }, + FFTComplex{ re: 0.66614891079092, im: 0.96590176169121 }, + FFTComplex{ re: 0.74922239129237, im: -0.89879858826087 }, + FFTComplex{ re: -0.99571588506485, im: 0.52785521494349 }, + FFTComplex{ re: 0.97401082477563, im: -0.16855870075190 }, + FFTComplex{ re: 0.72683747733879, im: -0.48060774432251 }, + FFTComplex{ re: 0.95432193457128, im: 0.68849603408441 }, + FFTComplex{ re: -0.72962208425191, im: -0.76608443420917 }, + FFTComplex{ re: -0.85359479233537, im: 0.88738125901579 }, + FFTComplex{ re: -0.81412430338535, im: -0.97480768049637 }, + FFTComplex{ re: -0.87930772356786, im: 0.74748307690436 }, + FFTComplex{ re: -0.71573331064977, im: -0.98570608178923 }, + FFTComplex{ re: 0.83524300028228, im: 0.83702537075163 }, + FFTComplex{ re: -0.48086065601423, im: -0.98848504923531 }, + FFTComplex{ re: 0.97139128574778, im: 0.80093621198236 }, + FFTComplex{ re: 0.51992825347895, im: 0.80247631400510 }, + FFTComplex{ re: -0.00848591195325, im: -0.76670128000486 }, + FFTComplex{ re: -0.70294374303036, im: 0.55359910445577 }, + FFTComplex{ re: -0.95894428168140, im: -0.43265504344783 }, + FFTComplex{ re: 0.97079252950321, im: 0.09325857238682 }, + FFTComplex{ re: -0.92404293670797, im: 0.85507704027855 }, + FFTComplex{ re: -0.69506469500450, im: 0.98633412625459 }, + FFTComplex{ re: 0.26559203620024, im: 0.73314307966524 }, + FFTComplex{ re: 0.28038443336943, im: 0.14537913654427 }, + FFTComplex{ re: -0.74138124825523, im: 0.99310339807762 }, + FFTComplex{ re: -0.01752795995444, im: -0.82616635284178 }, + FFTComplex{ re: -0.55126773094930, im: -0.98898543862153 }, + FFTComplex{ re: 0.97960898850996, im: -0.94021446752851 }, + FFTComplex{ re: -0.99196309146936, im: 0.67019017358456 }, + FFTComplex{ re: -0.67684928085260, im: 0.12631491649378 }, + FFTComplex{ re: 0.09140039465500, im: -0.20537731453108 }, + FFTComplex{ re: -0.71658965751996, im: -0.97788200391224 }, + FFTComplex{ re: 0.81014640078925, im: 0.53722648362443 }, + FFTComplex{ re: 0.40616991671205, im: -0.26469008598449 }, + FFTComplex{ re: -0.67680188682972, im: 0.94502052337695 }, + FFTComplex{ re: 0.86849774348749, im: -0.18333598647899 }, + FFTComplex{ re: -0.99500381284851, im: -0.02634122068550 }, + FFTComplex{ re: 0.84329189340667, im: 0.10406957462213 }, + FFTComplex{ re: -0.09215968531446, im: 0.69540012101253 }, + FFTComplex{ re: 0.99956173327206, im: -0.12358542001404 }, + FFTComplex{ re: -0.79732779473535, im: -0.91582524736159 }, + FFTComplex{ re: 0.96349973642406, im: 0.96640458041000 }, + FFTComplex{ re: -0.79942778496547, im: 0.64323902822857 }, + FFTComplex{ re: -0.11566039853896, im: 0.28587846253726 }, + FFTComplex{ re: -0.39922954514662, im: 0.94129601616966 }, + FFTComplex{ re: 0.99089197565987, im: -0.92062625581587 }, + FFTComplex{ re: 0.28631285179909, im: -0.91035047143603 }, + FFTComplex{ re: -0.83302725605608, im: -0.67330410892084 }, + FFTComplex{ re: 0.95404443402072, im: 0.49162765398743 }, + FFTComplex{ re: -0.06449863579434, im: 0.03250560813135 }, + FFTComplex{ re: -0.99575054486311, im: 0.42389784469507 }, + FFTComplex{ re: -0.65501142790847, im: 0.82546114655624 }, + FFTComplex{ re: -0.81254441908887, im: -0.51627234660629 }, + FFTComplex{ re: -0.99646369485481, im: 0.84490533520752 }, + FFTComplex{ re: 0.00287840603348, im: 0.64768261158166 }, + FFTComplex{ re: 0.70176989408455, im: -0.20453028573322 }, + FFTComplex{ re: 0.96361882270190, im: 0.40706967140989 }, + FFTComplex{ re: -0.68883758192426, im: 0.91338958840772 }, + FFTComplex{ re: -0.34875585502238, im: 0.71472290693300 }, + FFTComplex{ re: 0.91980081243087, im: 0.66507455644919 }, + FFTComplex{ re: -0.99009048343881, im: 0.85868021604848 }, + FFTComplex{ re: 0.68865791458395, im: 0.55660316809678 }, + FFTComplex{ re: -0.99484402129368, im: -0.20052559254934 }, + FFTComplex{ re: 0.94214511408023, im: -0.99696425367461 }, + FFTComplex{ re: -0.67414626793544, im: 0.49548221180078 }, + FFTComplex{ re: -0.47339353684664, im: -0.85904328834047 }, + FFTComplex{ re: 0.14323651387360, im: -0.94145598222488 }, + FFTComplex{ re: -0.29268293575672, im: 0.05759224927952 }, + FFTComplex{ re: 0.43793861458754, im: -0.78904969892724 }, + FFTComplex{ re: -0.36345126374441, im: 0.64874435357162 }, + FFTComplex{ re: -0.08750604656825, im: 0.97686944362527 }, + FFTComplex{ re: -0.96495267812511, im: -0.53960305946511 }, + FFTComplex{ re: 0.55526940659947, im: 0.78891523734774 }, + FFTComplex{ re: 0.73538215752630, im: 0.96452072373404 }, + FFTComplex{ re: -0.30889773919437, im: -0.80664389776860 }, + FFTComplex{ re: 0.03574995626194, im: -0.97325616900959 }, + FFTComplex{ re: 0.98720684660488, im: 0.48409133691962 }, + FFTComplex{ re: -0.81689296271203, im: -0.90827703628298 }, + FFTComplex{ re: 0.67866860118215, im: 0.81284503870856 }, + FFTComplex{ re: -0.15808569732583, im: 0.85279555024382 }, + FFTComplex{ re: 0.80723395114371, im: -0.24717418514605 }, + FFTComplex{ re: 0.47788757329038, im: -0.46333147839295 }, + FFTComplex{ re: 0.96367554763201, im: 0.38486749303242 }, + FFTComplex{ re: -0.99143875716818, im: -0.24945277239809 }, + FFTComplex{ re: 0.83081876925833, im: -0.94780851414763 }, + FFTComplex{ re: -0.58753191905341, im: 0.01290772389163 }, + FFTComplex{ re: 0.95538108220960, im: -0.85557052096538 }, + FFTComplex{ re: -0.96490920476211, im: -0.64020970923102 }, + FFTComplex{ re: -0.97327101028521, im: 0.12378128133110 }, + FFTComplex{ re: 0.91400366022124, im: 0.57972471346930 }, + FFTComplex{ re: -0.99925837363824, im: 0.71084847864067 }, + FFTComplex{ re: -0.86875903507313, im: -0.20291699203564 }, + FFTComplex{ re: -0.26240034795124, im: -0.68264554369108 }, + FFTComplex{ re: -0.24664412953388, im: -0.87642273115183 }, + FFTComplex{ re: 0.02416275806869, im: 0.27192914288905 }, + FFTComplex{ re: 0.82068619590515, im: -0.85087787994476 }, + FFTComplex{ re: 0.88547373760759, im: -0.89636802901469 }, + FFTComplex{ re: -0.18173078152226, im: -0.26152145156800 }, + FFTComplex{ re: 0.09355476558534, im: 0.54845123045604 }, + FFTComplex{ re: -0.54668414224090, im: 0.95980774020221 }, + FFTComplex{ re: 0.37050990604091, im: -0.59910140383171 }, + FFTComplex{ re: -0.70373594262891, im: 0.91227665827081 }, + FFTComplex{ re: -0.34600785879594, im: -0.99441426144200 }, + FFTComplex{ re: -0.68774481731008, im: -0.30238837956299 }, + FFTComplex{ re: -0.26843291251234, im: 0.83115668004362 }, + FFTComplex{ re: 0.49072334613242, im: -0.45359708737775 }, + FFTComplex{ re: 0.38975993093975, im: 0.95515358099121 }, + FFTComplex{ re: -0.97757125224150, im: 0.05305894580606 }, + FFTComplex{ re: -0.17325552859616, im: -0.92770672250494 }, + FFTComplex{ re: 0.99948035025744, im: 0.58285545563426 }, + FFTComplex{ re: -0.64946246527458, im: 0.68645507104960 }, + FFTComplex{ re: -0.12016920576437, im: -0.57147322153312 }, + FFTComplex{ re: -0.58947456517751, im: -0.34847132454388 }, + FFTComplex{ re: -0.41815140454465, im: 0.16276422358861 }, + FFTComplex{ re: 0.99885650204884, im: 0.11136095490444 }, + FFTComplex{ re: -0.56649614128386, im: -0.90494866361587 }, + FFTComplex{ re: 0.94138021032330, im: 0.35281916733018 }, + FFTComplex{ re: -0.75725076534641, im: 0.53650549640587 }, + FFTComplex{ re: 0.20541973692630, im: -0.94435144369918 }, + FFTComplex{ re: 0.99980371023351, im: 0.79835913565599 }, + FFTComplex{ re: 0.29078277605775, im: 0.35393777921520 }, + FFTComplex{ re: -0.62858772103030, im: 0.38765693387102 }, + FFTComplex{ re: 0.43440904467688, im: -0.98546330463232 }, + FFTComplex{ re: -0.98298583762390, im: 0.21021524625209 }, + FFTComplex{ re: 0.19513029146934, im: -0.94239832251867 }, + FFTComplex{ re: -0.95476662400101, im: 0.98364554179143 }, + FFTComplex{ re: 0.93379635304810, im: -0.70881994583682 }, + FFTComplex{ re: -0.85235410573336, im: -0.08342347966410 }, + FFTComplex{ re: -0.86425093011245, im: -0.45795025029466 }, + FFTComplex{ re: 0.38879779059045, im: 0.97274429344593 }, + FFTComplex{ re: 0.92045124735495, im: -0.62433652524220 }, + FFTComplex{ re: 0.89162532251878, im: 0.54950955570563 }, + FFTComplex{ re: -0.36834336949252, im: 0.96458298020975 }, + FFTComplex{ re: 0.93891760988045, im: -0.89968353740388 }, + FFTComplex{ re: 0.99267657565094, im: -0.03757034316958 }, + FFTComplex{ re: -0.94063471614176, im: 0.41332338538963 }, + FFTComplex{ re: 0.99740224117019, im: -0.16830494996370 }, + FFTComplex{ re: -0.35899413170555, im: -0.46633226649613 }, + FFTComplex{ re: 0.05237237274947, im: -0.25640361602661 }, + FFTComplex{ re: 0.36703583957424, im: -0.38653265641875 }, + 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-0.14130287347405 }, + FFTComplex{ re: -0.92366023326932, im: -0.97979298068180 }, + FFTComplex{ re: -0.44607178518598, im: -0.54233252016394 }, + FFTComplex{ re: 0.44226800932956, im: 0.71326756742752 }, + FFTComplex{ re: 0.03671907158312, im: 0.63606389366675 }, + FFTComplex{ re: 0.52175424682195, im: -0.85396826735705 }, + FFTComplex{ re: -0.94701139690956, im: -0.01826348194255 }, + FFTComplex{ re: -0.98759606946049, im: 0.82288714303073 }, + FFTComplex{ re: 0.87434794743625, im: 0.89399495655433 }, + FFTComplex{ re: -0.93412041758744, im: 0.41374052024363 }, + FFTComplex{ re: 0.96063943315511, im: 0.93116709541280 }, + FFTComplex{ re: 0.97534253457837, im: 0.86150930812689 }, + FFTComplex{ re: 0.99642466504163, im: 0.70190043427512 }, + FFTComplex{ re: -0.94705089665984, im: -0.29580042814306 }, + FFTComplex{ re: 0.91599807087376, im: -0.98147830385781 }, +]; diff --git a/nihav-mpeg/src/codecs/mod.rs b/nihav-mpeg/src/codecs/mod.rs index d02d7d8..fd05a3f 100644 --- a/nihav-mpeg/src/codecs/mod.rs +++ b/nihav-mpeg/src/codecs/mod.rs @@ -5,6 +5,8 @@ macro_rules! validate { } #[cfg(feature="decoder_aac")] +#[allow(clippy::comparison_chain)] +#[allow(clippy::excessive_precision)] #[allow(clippy::manual_memcpy)] #[allow(clippy::useless_let_if_seq)] mod aac; diff --git a/nihav-mpeg/src/lib.rs b/nihav-mpeg/src/lib.rs index 59791c1..a40decf 100644 --- a/nihav-mpeg/src/lib.rs +++ b/nihav-mpeg/src/lib.rs @@ -3,6 +3,7 @@ extern crate nihav_core; extern crate nihav_codec_support; #[cfg(feature="decoders")] +#[allow(clippy::collapsible_if)] #[allow(clippy::needless_range_loop)] mod codecs; -- 2.30.2