projects / nihav.git / blame
| Commit | Line | Data |
|---|---|---|
| 999c25f7 KS |
1 | use nihav_core::codecs::{DecoderResult, DecoderError}; |
| 2 | use nihav_core::io::bitreader::*; | |
| 3 | use nihav_core::io::codebook::*; | |
| 4 | use nihav_core::io::intcode::*; | |
| 5 | use std::mem; | |
| 6 | use std::ptr; | |
| 7 | use super::{INTENSITY_SCALE_MIN, MAX_WINDOWS, MAX_SFBS, GASubbandInfo, ICSInfo}; | |
| 27608aa6 | 8 | use super::tables::CBRT_TAB; |
| 999c25f7 KS |
9 | |
| 10 | pub const ZERO_HCB: u8 = 0; | |
| 11 | pub const FIRST_PAIR_HCB: u8 = 5; | |
| 12 | pub const ESC_HCB: u8 = 11; | |
| 13 | pub const RESERVED_HCB: u8 = 12; | |
| 14 | pub const NOISE_HCB: u8 = 13; | |
| 15 | pub const INTENSITY_HCB2: u8 = 14; | |
| 16 | pub const INTENSITY_HCB: u8 = 15; | |
| 17 | ||
| 18 | pub struct Codebooks { | |
| 19 | pub scale_cb: Codebook<i8>, | |
| 20 | pub spec_cb: [Codebook<u16>; 11], | |
| 21 | } | |
| 22 | ||
| 23 | fn scale_map(idx: usize) -> i8 { (idx as i8) - 60 } | |
| 24 | fn cb_map(idx: usize) -> u16 { idx as u16 } | |
| 25 | ||
| 26 | impl Codebooks { | |
| 27 | pub fn new() -> Self { | |
| 28 | let mut coderead = TableCodebookDescReader::new(AAC_SCF_CODEBOOK_CODES, AAC_SCF_CODEBOOK_BITS, scale_map); | |
| 29 | let scale_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
| 30 | let spec_cb = unsafe { | |
| 31 | let mut uspec_cb: mem::MaybeUninit::<[Codebook<u16>; 11]> = mem::MaybeUninit::uninit(); | |
| 32 | for i in 0..AAC_SPEC_CODES.len() { | |
| 33 | let mut coderead = TableCodebookDescReader::new(AAC_SPEC_CODES[i], AAC_SPEC_BITS[i], cb_map); | |
| 34 | ptr::write(&mut (*uspec_cb.as_mut_ptr())[i], Codebook::new(&mut coderead, CodebookMode::MSB).unwrap()); | |
| 35 | } | |
| 36 | uspec_cb.assume_init() | |
| 37 | }; | |
| 38 | Self { scale_cb, spec_cb } | |
| 39 | } | |
| 40 | } | |
| 41 | ||
| 42 | pub fn get_scale(scale: u8) -> f32 { | |
| 43 | 2.0f32.powf(0.25 * (f32::from(scale) - 100.0 - 56.0)) | |
| 44 | } | |
| 27608aa6 KS |
45 | fn iquant(val: i16) -> f32 { |
| 46 | let idx = val.abs() as usize; | |
| 47 | if idx < CBRT_TAB.len() { | |
| 48 | if val < 0 { | |
| 49 | -CBRT_TAB[idx] | |
| 50 | } else { | |
| 51 | CBRT_TAB[idx] | |
| 52 | } | |
| 53 | } else if val < 0 { | |
| 54 | -((-f32::from(val)).powf(4.0 / 3.0)) | |
| 999c25f7 | 55 | } else { |
| 27608aa6 | 56 | f32::from(val).powf(4.0 / 3.0) |
| 999c25f7 KS |
57 | } |
| 58 | } | |
| 59 | pub fn requant(val: f32, scale: f32) -> f32 { | |
| 60 | if scale == 0.0 { return 0.0; } | |
| 61 | let bval = val / scale; | |
| 62 | if bval >= 0.0 { | |
| 63 | val.powf(3.0 / 4.0) | |
| 64 | } else { | |
| 65 | -((-val).powf(3.0 / 4.0)) | |
| 66 | } | |
| 67 | } | |
| 68 | fn decode_quads(br: &mut BitReader, cb: &Codebook<u16>, unsigned: bool, scale: f32, dst: &mut [f32]) -> DecoderResult<()> { | |
| 69 | for out in dst.chunks_mut(4) { | |
| 70 | let cw = br.read_cb(cb)? as usize; | |
| 71 | if unsigned { | |
| 72 | for i in 0..4 { | |
| 73 | let val = AAC_QUADS[cw][i]; | |
| 74 | if val != 0 { | |
| 75 | if br.read_bool()? { | |
| 27608aa6 | 76 | out[i] = -CBRT_TAB[val as usize] * scale; |
| 999c25f7 | 77 | } else { |
| 27608aa6 | 78 | out[i] = CBRT_TAB[val as usize] * scale; |
| 999c25f7 KS |
79 | } |
| 80 | } | |
| 81 | } | |
| 82 | } else { | |
| 83 | for i in 0..4 { | |
| 27608aa6 KS |
84 | let val = AAC_QUADS[cw][i] - 1; |
| 85 | if val < 0 { | |
| 86 | out[i] = -CBRT_TAB[val.abs() as usize] * scale; | |
| 87 | } else { | |
| 88 | out[i] = CBRT_TAB[val.abs() as usize] * scale; | |
| 89 | } | |
| 999c25f7 KS |
90 | } |
| 91 | } | |
| 92 | } | |
| 93 | Ok(()) | |
| 94 | } | |
| 95 | fn decode_pairs(br: &mut BitReader, cb: &Codebook<u16>, unsigned: bool, escape: bool, modulo: u16, scale: f32, dst: &mut [f32]) -> DecoderResult<()> { | |
| 96 | for out in dst.chunks_mut(2) { | |
| 97 | let cw = br.read_cb(cb)?; | |
| 98 | let mut x = (cw / modulo) as i16; | |
| 99 | let mut y = (cw % modulo) as i16; | |
| 100 | if unsigned { | |
| 101 | if x != 0 && br.read_bool()? { | |
| 102 | x = -x; | |
| 103 | } | |
| 104 | if y != 0 && br.read_bool()? { | |
| 105 | y = -y; | |
| 106 | } | |
| 107 | } else { | |
| 108 | x -= (modulo >> 1) as i16; | |
| 109 | y -= (modulo >> 1) as i16; | |
| 110 | } | |
| 111 | if escape { | |
| 112 | if (x == 16) || (x == -16) { | |
| 243a5f47 | 113 | x = read_escape(br, x > 0)?; |
| 999c25f7 KS |
114 | } |
| 115 | if (y == 16) || (y == -16) { | |
| 243a5f47 | 116 | y = read_escape(br, y > 0)?; |
| 999c25f7 | 117 | } |
| 27608aa6 KS |
118 | out[0] = iquant(x) * scale; |
| 119 | out[1] = iquant(y) * scale; | |
| 120 | } else { | |
| 121 | out[0] = scale * if x < 0 { -CBRT_TAB[x.abs() as usize] } else { CBRT_TAB[x as usize] }; | |
| 122 | out[1] = scale * if y < 0 { -CBRT_TAB[y.abs() as usize] } else { CBRT_TAB[y as usize] }; | |
| 999c25f7 | 123 | } |
| 999c25f7 KS |
124 | } |
| 125 | Ok(()) | |
| 126 | } | |
| 127 | fn read_escape(br: &mut BitReader, sign: bool) -> DecoderResult<i16> { | |
| 128 | let prefix = br.read_code(UintCodeType::UnaryOnes)? as u8; | |
| 129 | validate!(prefix < 9); | |
| 130 | let bits = br.read(prefix + 4)? as i16; | |
| 131 | let bits = bits | (1 << (prefix + 4)); | |
| 132 | if sign { | |
| 133 | Ok(bits) | |
| 134 | } else { | |
| 135 | Ok(-bits) | |
| 136 | } | |
| 137 | } | |
| 138 | ||
| 139 | fn get_band_start(info: &ICSInfo, sbinfo: &GASubbandInfo, swb: usize) -> usize { | |
| 140 | if info.long_win { | |
| 141 | sbinfo.long_bands[swb] | |
| 142 | } else { | |
| 143 | sbinfo.short_bands[swb] | |
| 144 | } | |
| 145 | } | |
| 146 | ||
| 147 | const NOISE_SCALE_MIN: i16 = -100; | |
| 148 | ||
| 149 | pub fn decode_scale_factor_data(br: &mut BitReader, scales: &mut [[u8; MAX_SFBS]; MAX_WINDOWS], global_gain: u8, info: &ICSInfo, sfb_cb: &[[u8; MAX_SFBS]; MAX_WINDOWS], codebooks: &Codebooks) -> DecoderResult<()> { | |
| 150 | let mut noise_pcm_flag = true; | |
| 151 | let mut scf_normal = i16::from(global_gain); | |
| 152 | let mut scf_intensity = 0i16; | |
| 153 | let mut scf_noise = 0i16; | |
| 154 | for g in 0..info.window_groups { | |
| 155 | for sfb in 0..info.max_sfb { | |
| 156 | if sfb_cb[g][sfb] != ZERO_HCB { | |
| 157 | if (sfb_cb[g][sfb] == INTENSITY_HCB) || (sfb_cb[g][sfb] == INTENSITY_HCB2) { | |
| 158 | let diff = i16::from(br.read_cb(&codebooks.scale_cb)?); | |
| 159 | scf_intensity += diff; | |
| 160 | validate!((scf_intensity >= INTENSITY_SCALE_MIN) && (scf_intensity < INTENSITY_SCALE_MIN + 256)); | |
| 161 | scales[g][sfb] = (scf_intensity - INTENSITY_SCALE_MIN) as u8; | |
| 162 | } else if sfb_cb[g][sfb] == NOISE_HCB { | |
| 163 | if noise_pcm_flag { | |
| 164 | noise_pcm_flag = false; | |
| 165 | scf_noise = (br.read(9)? as i16) - 256 + i16::from(global_gain) - 90; | |
| 166 | } else { | |
| 167 | scf_noise += i16::from(br.read_cb(&codebooks.scale_cb)?); | |
| 168 | } | |
| 169 | validate!((scf_noise >= NOISE_SCALE_MIN) && (scf_noise < NOISE_SCALE_MIN + 256)); | |
| 170 | scales[g][sfb] = (scf_noise - NOISE_SCALE_MIN) as u8; | |
| 171 | } else { | |
| 172 | scf_normal += i16::from(br.read_cb(&codebooks.scale_cb)?); | |
| 173 | validate!((scf_normal >= 0) && (scf_normal < 255)); | |
| 174 | scales[g][sfb] = scf_normal as u8; | |
| 175 | } | |
| 176 | } | |
| 177 | } | |
| 178 | } | |
| 179 | Ok(()) | |
| 180 | } | |
| 181 | ||
| 182 | pub fn decode_spectrum(br: &mut BitReader, coeffs: &mut [f32; 1024], scales: &[[u8; MAX_SFBS]; MAX_WINDOWS], info: &ICSInfo, sbinfo: &GASubbandInfo, sfb_cb: &[[u8; MAX_SFBS]; MAX_WINDOWS], codebooks: &Codebooks) -> DecoderResult<()> { | |
| 183 | for g in 0..info.window_groups { | |
| 184 | let cur_w = info.get_group_start(g); | |
| 185 | let next_w = info.get_group_start(g + 1); | |
| 186 | for sfb in 0..info.max_sfb { | |
| 187 | let start = get_band_start(info, sbinfo, sfb); | |
| 188 | let end = get_band_start(info, sbinfo, sfb + 1); | |
| 189 | let cb_idx = sfb_cb[g][sfb]; | |
| 190 | for w in cur_w..next_w { | |
| 191 | let dst = &mut coeffs[start + w*128..end + w*128]; | |
| 192 | match cb_idx { | |
| 193 | ZERO_HCB => { /* zeroes */ }, | |
| 194 | NOISE_HCB => { /* noise */ }, | |
| 195 | INTENSITY_HCB | INTENSITY_HCB2 => { /* intensity */ }, | |
| 196 | _ => { | |
| 197 | let unsigned = AAC_UNSIGNED_CODEBOOK[(cb_idx - 1) as usize]; | |
| 198 | let scale = get_scale(scales[g][sfb]); | |
| 199 | let cb = &codebooks.spec_cb[(cb_idx - 1) as usize]; | |
| 200 | if cb_idx < FIRST_PAIR_HCB { | |
| 201 | decode_quads(br, cb, unsigned, scale, dst)?; | |
| 202 | } else { | |
| 203 | decode_pairs(br, cb, unsigned, cb_idx == ESC_HCB, | |
| 204 | AAC_CODEBOOK_MODULO[(cb_idx - FIRST_PAIR_HCB) as usize], scale, dst)?; | |
| 205 | } | |
| 206 | }, | |
| 207 | }; | |
| 208 | } | |
| 209 | } | |
| 210 | } | |
| 211 | Ok(()) | |
| 212 | } | |
| 213 | ||
| 214 | const AAC_SCF_CODEBOOK_BITS: &[u8] = &[ | |
| 215 | 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, | |
| 216 | 19, 19, 19, 18, 19, 18, 17, 17, 16, 17, 16, 16, 16, 16, 15, 15, | |
| 217 | 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 12, 11, 12, 11, 10, 10, | |
| 218 | 10, 9, 9, 8, 8, 8, 7, 6, 6, 5, 4, 3, 1, 4, 4, 5, | |
| 219 | 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 10, 11, 11, 11, 11, 12, | |
| 220 | 12, 13, 13, 13, 14, 14, 16, 15, 16, 15, 18, 19, 19, 19, 19, 19, | |
| 221 | 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, | |
| 222 | 19, 19, 19, 19, 19, 19, 19, 19, 19 | |
| 223 | ]; | |
| 224 | ||
| 225 | const AAC_SCF_CODEBOOK_CODES: &[u32] = &[ | |
| 226 | 0x3FFE8, 0x3FFE6, 0x3FFE7, 0x3FFE5, 0x7FFF5, 0x7FFF1, 0x7FFED, 0x7FFF6, | |
| 227 | 0x7FFEE, 0x7FFEF, 0x7FFF0, 0x7FFFC, 0x7FFFD, 0x7FFFF, 0x7FFFE, 0x7FFF7, | |
| 228 | 0x7FFF8, 0x7FFFB, 0x7FFF9, 0x3FFE4, 0x7FFFA, 0x3FFE3, 0x1FFEF, 0x1FFF0, | |
| 229 | 0x0FFF5, 0x1FFEE, 0x0FFF2, 0x0FFF3, 0x0FFF4, 0x0FFF1, 0x07FF6, 0x07FF7, | |
| 230 | 0x03FF9, 0x03FF5, 0x03FF7, 0x03FF3, 0x03FF6, 0x03FF2, 0x01FF7, 0x01FF5, | |
| 231 | 0x00FF9, 0x00FF7, 0x00FF6, 0x007F9, 0x00FF4, 0x007F8, 0x003F9, 0x003F7, | |
| 232 | 0x003F5, 0x001F8, 0x001F7, 0x000FA, 0x000F8, 0x000F6, 0x00079, 0x0003A, | |
| 233 | 0x00038, 0x0001A, 0x0000B, 0x00004, 0x00000, 0x0000A, 0x0000C, 0x0001B, | |
| 234 | 0x00039, 0x0003B, 0x00078, 0x0007A, 0x000F7, 0x000F9, 0x001F6, 0x001F9, | |
| 235 | 0x003F4, 0x003F6, 0x003F8, 0x007F5, 0x007F4, 0x007F6, 0x007F7, 0x00FF5, | |
| 236 | 0x00FF8, 0x01FF4, 0x01FF6, 0x01FF8, 0x03FF8, 0x03FF4, 0x0FFF0, 0x07FF4, | |
| 237 | 0x0FFF6, 0x07FF5, 0x3FFE2, 0x7FFD9, 0x7FFDA, 0x7FFDB, 0x7FFDC, 0x7FFDD, | |
| 238 | 0x7FFDE, 0x7FFD8, 0x7FFD2, 0x7FFD3, 0x7FFD4, 0x7FFD5, 0x7FFD6, 0x7FFF2, | |
| 239 | 0x7FFDF, 0x7FFE7, 0x7FFE8, 0x7FFE9, 0x7FFEA, 0x7FFEB, 0x7FFE6, 0x7FFE0, | |
| 240 | 0x7FFE1, 0x7FFE2, 0x7FFE3, 0x7FFE4, 0x7FFE5, 0x7FFD7, 0x7FFEC, 0x7FFF4, | |
| 241 | 0x7FFF3 | |
| 242 | ]; | |
| 243 | ||
| 244 | const AAC_SPEC_CB1_BITS: &[u8] = &[ | |
| 245 | 11, 9, 11, 10, 7, 10, 11, 9, 11, 10, 7, 10, 7, 5, 7, 9, | |
| 246 | 7, 10, 11, 9, 11, 9, 7, 9, 11, 9, 11, 9, 7, 9, 7, 5, | |
| 247 | 7, 9, 7, 9, 7, 5, 7, 5, 1, 5, 7, 5, 7, 9, 7, 9, | |
| 248 | 7, 5, 7, 9, 7, 9, 11, 9, 11, 9, 7, 9, 11, 9, 11, 10, | |
| 249 | 7, 9, 7, 5, 7, 9, 7, 10, 11, 9, 11, 10, 7, 9, 11, 9, | |
| 250 | 11 | |
| 251 | ]; | |
| 252 | const AAC_SPEC_CB1_CODES: &[u16] = &[ | |
| 253 | 0x7f8, 0x1f1, 0x7fd, 0x3f5, 0x068, 0x3f0, 0x7f7, 0x1ec, | |
| 254 | 0x7f5, 0x3f1, 0x072, 0x3f4, 0x074, 0x011, 0x076, 0x1eb, | |
| 255 | 0x06c, 0x3f6, 0x7fc, 0x1e1, 0x7f1, 0x1f0, 0x061, 0x1f6, | |
| 256 | 0x7f2, 0x1ea, 0x7fb, 0x1f2, 0x069, 0x1ed, 0x077, 0x017, | |
| 257 | 0x06f, 0x1e6, 0x064, 0x1e5, 0x067, 0x015, 0x062, 0x012, | |
| 258 | 0x000, 0x014, 0x065, 0x016, 0x06d, 0x1e9, 0x063, 0x1e4, | |
| 259 | 0x06b, 0x013, 0x071, 0x1e3, 0x070, 0x1f3, 0x7fe, 0x1e7, | |
| 260 | 0x7f3, 0x1ef, 0x060, 0x1ee, 0x7f0, 0x1e2, 0x7fa, 0x3f3, | |
| 261 | 0x06a, 0x1e8, 0x075, 0x010, 0x073, 0x1f4, 0x06e, 0x3f7, | |
| 262 | 0x7f6, 0x1e0, 0x7f9, 0x3f2, 0x066, 0x1f5, 0x7ff, 0x1f7, | |
| 263 | 0x7f4 | |
| 264 | ]; | |
| 265 | const AAC_SPEC_CB2_BITS: &[u8] = &[ | |
| 266 | 9, 7, 9, 8, 6, 8, 9, 8, 9, 8, 6, 7, 6, 5, 6, 7, | |
| 267 | 6, 8, 9, 7, 8, 8, 6, 8, 9, 7, 9, 8, 6, 7, 6, 5, | |
| 268 | 6, 7, 6, 8, 6, 5, 6, 5, 3, 5, 6, 5, 6, 8, 6, 7, | |
| 269 | 6, 5, 6, 8, 6, 8, 9, 7, 9, 8, 6, 8, 8, 7, 9, 8, | |
| 270 | 6, 7, 6, 4, 6, 8, 6, 7, 9, 7, 9, 7, 6, 8, 9, 7, | |
| 271 | 9 | |
| 272 | ]; | |
| 273 | const AAC_SPEC_CB2_CODES: &[u16] = &[ | |
| 274 | 0x1f3, 0x06f, 0x1fd, 0x0eb, 0x023, 0x0ea, 0x1f7, 0x0e8, | |
| 275 | 0x1fa, 0x0f2, 0x02d, 0x070, 0x020, 0x006, 0x02b, 0x06e, | |
| 276 | 0x028, 0x0e9, 0x1f9, 0x066, 0x0f8, 0x0e7, 0x01b, 0x0f1, | |
| 277 | 0x1f4, 0x06b, 0x1f5, 0x0ec, 0x02a, 0x06c, 0x02c, 0x00a, | |
| 278 | 0x027, 0x067, 0x01a, 0x0f5, 0x024, 0x008, 0x01f, 0x009, | |
| 279 | 0x000, 0x007, 0x01d, 0x00b, 0x030, 0x0ef, 0x01c, 0x064, | |
| 280 | 0x01e, 0x00c, 0x029, 0x0f3, 0x02f, 0x0f0, 0x1fc, 0x071, | |
| 281 | 0x1f2, 0x0f4, 0x021, 0x0e6, 0x0f7, 0x068, 0x1f8, 0x0ee, | |
| 282 | 0x022, 0x065, 0x031, 0x002, 0x026, 0x0ed, 0x025, 0x06a, | |
| 283 | 0x1fb, 0x072, 0x1fe, 0x069, 0x02e, 0x0f6, 0x1ff, 0x06d, | |
| 284 | 0x1f6 | |
| 285 | ]; | |
| 286 | const AAC_SPEC_CB3_BITS: &[u8] = &[ | |
| 287 | 1, 4, 8, 4, 5, 8, 9, 9, 10, 4, 6, 9, 6, 6, 9, 9, | |
| 288 | 9, 10, 9, 10, 13, 9, 9, 11, 11, 10, 12, 4, 6, 10, 6, 7, | |
| 289 | 10, 10, 10, 12, 5, 7, 11, 6, 7, 10, 9, 9, 11, 9, 10, 13, | |
| 290 | 8, 9, 12, 10, 11, 12, 8, 10, 15, 9, 11, 15, 13, 14, 16, 8, | |
| 291 | 10, 14, 9, 10, 14, 12, 12, 15, 11, 12, 16, 10, 11, 15, 12, 12, | |
| 292 | 15 | |
| 293 | ]; | |
| 294 | const AAC_SPEC_CB3_CODES: &[u16] = &[ | |
| 295 | 0x0000, 0x0009, 0x00ef, 0x000b, 0x0019, 0x00f0, 0x01eb, 0x01e6, | |
| 296 | 0x03f2, 0x000a, 0x0035, 0x01ef, 0x0034, 0x0037, 0x01e9, 0x01ed, | |
| 297 | 0x01e7, 0x03f3, 0x01ee, 0x03ed, 0x1ffa, 0x01ec, 0x01f2, 0x07f9, | |
| 298 | 0x07f8, 0x03f8, 0x0ff8, 0x0008, 0x0038, 0x03f6, 0x0036, 0x0075, | |
| 299 | 0x03f1, 0x03eb, 0x03ec, 0x0ff4, 0x0018, 0x0076, 0x07f4, 0x0039, | |
| 300 | 0x0074, 0x03ef, 0x01f3, 0x01f4, 0x07f6, 0x01e8, 0x03ea, 0x1ffc, | |
| 301 | 0x00f2, 0x01f1, 0x0ffb, 0x03f5, 0x07f3, 0x0ffc, 0x00ee, 0x03f7, | |
| 302 | 0x7ffe, 0x01f0, 0x07f5, 0x7ffd, 0x1ffb, 0x3ffa, 0xffff, 0x00f1, | |
| 303 | 0x03f0, 0x3ffc, 0x01ea, 0x03ee, 0x3ffb, 0x0ff6, 0x0ffa, 0x7ffc, | |
| 304 | 0x07f2, 0x0ff5, 0xfffe, 0x03f4, 0x07f7, 0x7ffb, 0x0ff7, 0x0ff9, | |
| 305 | 0x7ffa | |
| 306 | ]; | |
| 307 | const AAC_SPEC_CB4_BITS: &[u8] = &[ | |
| 308 | 4, 5, 8, 5, 4, 8, 9, 8, 11, 5, 5, 8, 5, 4, 8, 8, | |
| 309 | 7, 10, 9, 8, 11, 8, 8, 10, 11, 10, 11, 4, 5, 8, 4, 4, | |
| 310 | 8, 8, 8, 10, 4, 4, 8, 4, 4, 7, 8, 7, 9, 8, 8, 10, | |
| 311 | 7, 7, 9, 10, 9, 10, 8, 8, 11, 8, 7, 10, 11, 10, 12, 8, | |
| 312 | 7, 10, 7, 7, 9, 10, 9, 11, 11, 10, 12, 10, 9, 11, 11, 10, | |
| 313 | 11 | |
| 314 | ]; | |
| 315 | const AAC_SPEC_CB4_CODES: &[u16] = &[ | |
| 316 | 0x007, 0x016, 0x0f6, 0x018, 0x008, 0x0ef, 0x1ef, 0x0f3, | |
| 317 | 0x7f8, 0x019, 0x017, 0x0ed, 0x015, 0x001, 0x0e2, 0x0f0, | |
| 318 | 0x070, 0x3f0, 0x1ee, 0x0f1, 0x7fa, 0x0ee, 0x0e4, 0x3f2, | |
| 319 | 0x7f6, 0x3ef, 0x7fd, 0x005, 0x014, 0x0f2, 0x009, 0x004, | |
| 320 | 0x0e5, 0x0f4, 0x0e8, 0x3f4, 0x006, 0x002, 0x0e7, 0x003, | |
| 321 | 0x000, 0x06b, 0x0e3, 0x069, 0x1f3, 0x0eb, 0x0e6, 0x3f6, | |
| 322 | 0x06e, 0x06a, 0x1f4, 0x3ec, 0x1f0, 0x3f9, 0x0f5, 0x0ec, | |
| 323 | 0x7fb, 0x0ea, 0x06f, 0x3f7, 0x7f9, 0x3f3, 0xfff, 0x0e9, | |
| 324 | 0x06d, 0x3f8, 0x06c, 0x068, 0x1f5, 0x3ee, 0x1f2, 0x7f4, | |
| 325 | 0x7f7, 0x3f1, 0xffe, 0x3ed, 0x1f1, 0x7f5, 0x7fe, 0x3f5, | |
| 326 | 0x7fc | |
| 327 | ]; | |
| 328 | const AAC_SPEC_CB5_BITS: &[u8] = &[ | |
| 329 | 13, 12, 11, 11, 10, 11, 11, 12, 13, 12, 11, 10, 9, 8, 9, 10, | |
| 330 | 11, 12, 12, 10, 9, 8, 7, 8, 9, 10, 11, 11, 9, 8, 5, 4, | |
| 331 | 5, 8, 9, 11, 10, 8, 7, 4, 1, 4, 7, 8, 11, 11, 9, 8, | |
| 332 | 5, 4, 5, 8, 9, 11, 11, 10, 9, 8, 7, 8, 9, 10, 11, 12, | |
| 333 | 11, 10, 9, 8, 9, 10, 11, 12, 13, 12, 12, 11, 10, 10, 11, 12, | |
| 334 | 13 | |
| 335 | ]; | |
| 336 | const AAC_SPEC_CB5_CODES: &[u16] = &[ | |
| 337 | 0x1fff, 0x0ff7, 0x07f4, 0x07e8, 0x03f1, 0x07ee, 0x07f9, 0x0ff8, | |
| 338 | 0x1ffd, 0x0ffd, 0x07f1, 0x03e8, 0x01e8, 0x00f0, 0x01ec, 0x03ee, | |
| 339 | 0x07f2, 0x0ffa, 0x0ff4, 0x03ef, 0x01f2, 0x00e8, 0x0070, 0x00ec, | |
| 340 | 0x01f0, 0x03ea, 0x07f3, 0x07eb, 0x01eb, 0x00ea, 0x001a, 0x0008, | |
| 341 | 0x0019, 0x00ee, 0x01ef, 0x07ed, 0x03f0, 0x00f2, 0x0073, 0x000b, | |
| 342 | 0x0000, 0x000a, 0x0071, 0x00f3, 0x07e9, 0x07ef, 0x01ee, 0x00ef, | |
| 343 | 0x0018, 0x0009, 0x001b, 0x00eb, 0x01e9, 0x07ec, 0x07f6, 0x03eb, | |
| 344 | 0x01f3, 0x00ed, 0x0072, 0x00e9, 0x01f1, 0x03ed, 0x07f7, 0x0ff6, | |
| 345 | 0x07f0, 0x03e9, 0x01ed, 0x00f1, 0x01ea, 0x03ec, 0x07f8, 0x0ff9, | |
| 346 | 0x1ffc, 0x0ffc, 0x0ff5, 0x07ea, 0x03f3, 0x03f2, 0x07f5, 0x0ffb, | |
| 347 | 0x1ffe | |
| 348 | ]; | |
| 349 | const AAC_SPEC_CB6_BITS: &[u8] = &[ | |
| 350 | 11, 10, 9, 9, 9, 9, 9, 10, 11, 10, 9, 8, 7, 7, 7, 8, | |
| 351 | 9, 10, 9, 8, 6, 6, 6, 6, 6, 8, 9, 9, 7, 6, 4, 4, | |
| 352 | 4, 6, 7, 9, 9, 7, 6, 4, 4, 4, 6, 7, 9, 9, 7, 6, | |
| 353 | 4, 4, 4, 6, 7, 9, 9, 8, 6, 6, 6, 6, 6, 8, 9, 10, | |
| 354 | 9, 8, 7, 7, 7, 7, 8, 10, 11, 10, 9, 9, 9, 9, 9, 10, | |
| 355 | 11 | |
| 356 | ]; | |
| 357 | const AAC_SPEC_CB6_CODES: &[u16] = &[ | |
| 358 | 0x7fe, 0x3fd, 0x1f1, 0x1eb, 0x1f4, 0x1ea, 0x1f0, 0x3fc, | |
| 359 | 0x7fd, 0x3f6, 0x1e5, 0x0ea, 0x06c, 0x071, 0x068, 0x0f0, | |
| 360 | 0x1e6, 0x3f7, 0x1f3, 0x0ef, 0x032, 0x027, 0x028, 0x026, | |
| 361 | 0x031, 0x0eb, 0x1f7, 0x1e8, 0x06f, 0x02e, 0x008, 0x004, | |
| 362 | 0x006, 0x029, 0x06b, 0x1ee, 0x1ef, 0x072, 0x02d, 0x002, | |
| 363 | 0x000, 0x003, 0x02f, 0x073, 0x1fa, 0x1e7, 0x06e, 0x02b, | |
| 364 | 0x007, 0x001, 0x005, 0x02c, 0x06d, 0x1ec, 0x1f9, 0x0ee, | |
| 365 | 0x030, 0x024, 0x02a, 0x025, 0x033, 0x0ec, 0x1f2, 0x3f8, | |
| 366 | 0x1e4, 0x0ed, 0x06a, 0x070, 0x069, 0x074, 0x0f1, 0x3fa, | |
| 367 | 0x7ff, 0x3f9, 0x1f6, 0x1ed, 0x1f8, 0x1e9, 0x1f5, 0x3fb, | |
| 368 | 0x7fc | |
| 369 | ]; | |
| 370 | const AAC_SPEC_CB7_BITS: &[u8] = &[ | |
| 371 | 1, 3, 6, 7, 8, 9, 10, 11, 3, 4, 6, 7, 8, 8, 9, 9, | |
| 372 | 6, 6, 7, 8, 8, 9, 9, 10, 7, 7, 8, 8, 9, 9, 10, 10, | |
| 373 | 8, 8, 9, 9, 10, 10, 10, 11, 9, 8, 9, 9, 10, 10, 11, 11, | |
| 374 | 10, 9, 9, 10, 10, 11, 12, 12, 11, 10, 10, 10, 11, 11, 12, 12 | |
| 375 | ]; | |
| 376 | const AAC_SPEC_CB7_CODES: &[u16] = &[ | |
| 377 | 0x000, 0x005, 0x037, 0x074, 0x0f2, 0x1eb, 0x3ed, 0x7f7, | |
| 378 | 0x004, 0x00c, 0x035, 0x071, 0x0ec, 0x0ee, 0x1ee, 0x1f5, | |
| 379 | 0x036, 0x034, 0x072, 0x0ea, 0x0f1, 0x1e9, 0x1f3, 0x3f5, | |
| 380 | 0x073, 0x070, 0x0eb, 0x0f0, 0x1f1, 0x1f0, 0x3ec, 0x3fa, | |
| 381 | 0x0f3, 0x0ed, 0x1e8, 0x1ef, 0x3ef, 0x3f1, 0x3f9, 0x7fb, | |
| 382 | 0x1ed, 0x0ef, 0x1ea, 0x1f2, 0x3f3, 0x3f8, 0x7f9, 0x7fc, | |
| 383 | 0x3ee, 0x1ec, 0x1f4, 0x3f4, 0x3f7, 0x7f8, 0xffd, 0xffe, | |
| 384 | 0x7f6, 0x3f0, 0x3f2, 0x3f6, 0x7fa, 0x7fd, 0xffc, 0xfff | |
| 385 | ]; | |
| 386 | const AAC_SPEC_CB8_BITS: &[u8] = &[ | |
| 387 | 5, 4, 5, 6, 7, 8, 9, 10, 4, 3, 4, 5, 6, 7, 7, 8, | |
| 388 | 5, 4, 4, 5, 6, 7, 7, 8, 6, 5, 5, 6, 6, 7, 8, 8, | |
| 389 | 7, 6, 6, 6, 7, 7, 8, 9, 8, 7, 6, 7, 7, 8, 8, 10, | |
| 390 | 9, 7, 7, 8, 8, 8, 9, 9, 10, 8, 8, 8, 9, 9, 9, 10 | |
| 391 | ]; | |
| 392 | const AAC_SPEC_CB8_CODES: &[u16] = &[ | |
| 393 | 0x00e, 0x005, 0x010, 0x030, 0x06f, 0x0f1, 0x1fa, 0x3fe, | |
| 394 | 0x003, 0x000, 0x004, 0x012, 0x02c, 0x06a, 0x075, 0x0f8, | |
| 395 | 0x00f, 0x002, 0x006, 0x014, 0x02e, 0x069, 0x072, 0x0f5, | |
| 396 | 0x02f, 0x011, 0x013, 0x02a, 0x032, 0x06c, 0x0ec, 0x0fa, | |
| 397 | 0x071, 0x02b, 0x02d, 0x031, 0x06d, 0x070, 0x0f2, 0x1f9, | |
| 398 | 0x0ef, 0x068, 0x033, 0x06b, 0x06e, 0x0ee, 0x0f9, 0x3fc, | |
| 399 | 0x1f8, 0x074, 0x073, 0x0ed, 0x0f0, 0x0f6, 0x1f6, 0x1fd, | |
| 400 | 0x3fd, 0x0f3, 0x0f4, 0x0f7, 0x1f7, 0x1fb, 0x1fc, 0x3ff | |
| 401 | ]; | |
| 402 | const AAC_SPEC_CB9_BITS: &[u8] = &[ | |
| 403 | 1, 3, 6, 8, 9, 10, 10, 11, 11, 12, 12, 13, 13, 3, 4, 6, | |
| 404 | 7, 8, 8, 9, 10, 10, 10, 11, 12, 12, 6, 6, 7, 8, 8, 9, | |
| 405 | 10, 10, 10, 11, 12, 12, 12, 8, 7, 8, 9, 9, 10, 10, 11, 11, | |
| 406 | 11, 12, 12, 13, 9, 8, 9, 9, 10, 10, 11, 11, 11, 12, 12, 12, | |
| 407 | 13, 10, 9, 9, 10, 11, 11, 11, 12, 11, 12, 12, 13, 13, 11, 9, | |
| 408 | 10, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 11, 10, 10, 11, 11, | |
| 409 | 12, 12, 13, 13, 13, 13, 13, 13, 11, 10, 10, 11, 11, 11, 12, 12, | |
| 410 | 13, 13, 14, 13, 14, 11, 10, 11, 11, 12, 12, 12, 12, 13, 13, 14, | |
| 411 | 14, 14, 12, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 12, | |
| 412 | 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 13, 12, 12, 12, | |
| 413 | 13, 13, 13, 13, 14, 14, 14, 14, 15 | |
| 414 | ]; | |
| 415 | const AAC_SPEC_CB9_CODES: &[u16] = &[ | |
| 416 | 0x0000, 0x0005, 0x0037, 0x00e7, 0x01de, 0x03ce, 0x03d9, 0x07c8, | |
| 417 | 0x07cd, 0x0fc8, 0x0fdd, 0x1fe4, 0x1fec, 0x0004, 0x000c, 0x0035, | |
| 418 | 0x0072, 0x00ea, 0x00ed, 0x01e2, 0x03d1, 0x03d3, 0x03e0, 0x07d8, | |
| 419 | 0x0fcf, 0x0fd5, 0x0036, 0x0034, 0x0071, 0x00e8, 0x00ec, 0x01e1, | |
| 420 | 0x03cf, 0x03dd, 0x03db, 0x07d0, 0x0fc7, 0x0fd4, 0x0fe4, 0x00e6, | |
| 421 | 0x0070, 0x00e9, 0x01dd, 0x01e3, 0x03d2, 0x03dc, 0x07cc, 0x07ca, | |
| 422 | 0x07de, 0x0fd8, 0x0fea, 0x1fdb, 0x01df, 0x00eb, 0x01dc, 0x01e6, | |
| 423 | 0x03d5, 0x03de, 0x07cb, 0x07dd, 0x07dc, 0x0fcd, 0x0fe2, 0x0fe7, | |
| 424 | 0x1fe1, 0x03d0, 0x01e0, 0x01e4, 0x03d6, 0x07c5, 0x07d1, 0x07db, | |
| 425 | 0x0fd2, 0x07e0, 0x0fd9, 0x0feb, 0x1fe3, 0x1fe9, 0x07c4, 0x01e5, | |
| 426 | 0x03d7, 0x07c6, 0x07cf, 0x07da, 0x0fcb, 0x0fda, 0x0fe3, 0x0fe9, | |
| 427 | 0x1fe6, 0x1ff3, 0x1ff7, 0x07d3, 0x03d8, 0x03e1, 0x07d4, 0x07d9, | |
| 428 | 0x0fd3, 0x0fde, 0x1fdd, 0x1fd9, 0x1fe2, 0x1fea, 0x1ff1, 0x1ff6, | |
| 429 | 0x07d2, 0x03d4, 0x03da, 0x07c7, 0x07d7, 0x07e2, 0x0fce, 0x0fdb, | |
| 430 | 0x1fd8, 0x1fee, 0x3ff0, 0x1ff4, 0x3ff2, 0x07e1, 0x03df, 0x07c9, | |
| 431 | 0x07d6, 0x0fca, 0x0fd0, 0x0fe5, 0x0fe6, 0x1feb, 0x1fef, 0x3ff3, | |
| 432 | 0x3ff4, 0x3ff5, 0x0fe0, 0x07ce, 0x07d5, 0x0fc6, 0x0fd1, 0x0fe1, | |
| 433 | 0x1fe0, 0x1fe8, 0x1ff0, 0x3ff1, 0x3ff8, 0x3ff6, 0x7ffc, 0x0fe8, | |
| 434 | 0x07df, 0x0fc9, 0x0fd7, 0x0fdc, 0x1fdc, 0x1fdf, 0x1fed, 0x1ff5, | |
| 435 | 0x3ff9, 0x3ffb, 0x7ffd, 0x7ffe, 0x1fe7, 0x0fcc, 0x0fd6, 0x0fdf, | |
| 436 | 0x1fde, 0x1fda, 0x1fe5, 0x1ff2, 0x3ffa, 0x3ff7, 0x3ffc, 0x3ffd, | |
| 437 | 0x7fff | |
| 438 | ]; | |
| 439 | const AAC_SPEC_CB10_BITS: &[u8] = &[ | |
| 440 | 6, 5, 6, 6, 7, 8, 9, 10, 10, 10, 11, 11, 12, 5, 4, 4, | |
| 441 | 5, 6, 7, 7, 8, 8, 9, 10, 10, 11, 6, 4, 5, 5, 6, 6, | |
| 442 | 7, 8, 8, 9, 9, 10, 10, 6, 5, 5, 5, 6, 7, 7, 8, 8, | |
| 443 | 9, 9, 10, 10, 7, 6, 6, 6, 6, 7, 7, 8, 8, 9, 9, 10, | |
| 444 | 10, 8, 7, 6, 7, 7, 7, 8, 8, 8, 9, 10, 10, 11, 9, 7, | |
| 445 | 7, 7, 7, 8, 8, 9, 9, 9, 10, 10, 11, 9, 8, 8, 8, 8, | |
| 446 | 8, 9, 9, 9, 10, 10, 11, 11, 9, 8, 8, 8, 8, 8, 9, 9, | |
| 447 | 10, 10, 10, 11, 11, 10, 9, 9, 9, 9, 9, 9, 10, 10, 10, 11, | |
| 448 | 11, 12, 10, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 12, 11, | |
| 449 | 10, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 12, 11, 10, 10, 10, | |
| 450 | 10, 10, 10, 11, 11, 12, 12, 12, 12 | |
| 451 | ]; | |
| 452 | const AAC_SPEC_CB10_CODES: &[u16] = &[ | |
| 453 | 0x022, 0x008, 0x01d, 0x026, 0x05f, 0x0d3, 0x1cf, 0x3d0, | |
| 454 | 0x3d7, 0x3ed, 0x7f0, 0x7f6, 0xffd, 0x007, 0x000, 0x001, | |
| 455 | 0x009, 0x020, 0x054, 0x060, 0x0d5, 0x0dc, 0x1d4, 0x3cd, | |
| 456 | 0x3de, 0x7e7, 0x01c, 0x002, 0x006, 0x00c, 0x01e, 0x028, | |
| 457 | 0x05b, 0x0cd, 0x0d9, 0x1ce, 0x1dc, 0x3d9, 0x3f1, 0x025, | |
| 458 | 0x00b, 0x00a, 0x00d, 0x024, 0x057, 0x061, 0x0cc, 0x0dd, | |
| 459 | 0x1cc, 0x1de, 0x3d3, 0x3e7, 0x05d, 0x021, 0x01f, 0x023, | |
| 460 | 0x027, 0x059, 0x064, 0x0d8, 0x0df, 0x1d2, 0x1e2, 0x3dd, | |
| 461 | 0x3ee, 0x0d1, 0x055, 0x029, 0x056, 0x058, 0x062, 0x0ce, | |
| 462 | 0x0e0, 0x0e2, 0x1da, 0x3d4, 0x3e3, 0x7eb, 0x1c9, 0x05e, | |
| 463 | 0x05a, 0x05c, 0x063, 0x0ca, 0x0da, 0x1c7, 0x1ca, 0x1e0, | |
| 464 | 0x3db, 0x3e8, 0x7ec, 0x1e3, 0x0d2, 0x0cb, 0x0d0, 0x0d7, | |
| 465 | 0x0db, 0x1c6, 0x1d5, 0x1d8, 0x3ca, 0x3da, 0x7ea, 0x7f1, | |
| 466 | 0x1e1, 0x0d4, 0x0cf, 0x0d6, 0x0de, 0x0e1, 0x1d0, 0x1d6, | |
| 467 | 0x3d1, 0x3d5, 0x3f2, 0x7ee, 0x7fb, 0x3e9, 0x1cd, 0x1c8, | |
| 468 | 0x1cb, 0x1d1, 0x1d7, 0x1df, 0x3cf, 0x3e0, 0x3ef, 0x7e6, | |
| 469 | 0x7f8, 0xffa, 0x3eb, 0x1dd, 0x1d3, 0x1d9, 0x1db, 0x3d2, | |
| 470 | 0x3cc, 0x3dc, 0x3ea, 0x7ed, 0x7f3, 0x7f9, 0xff9, 0x7f2, | |
| 471 | 0x3ce, 0x1e4, 0x3cb, 0x3d8, 0x3d6, 0x3e2, 0x3e5, 0x7e8, | |
| 472 | 0x7f4, 0x7f5, 0x7f7, 0xffb, 0x7fa, 0x3ec, 0x3df, 0x3e1, | |
| 473 | 0x3e4, 0x3e6, 0x3f0, 0x7e9, 0x7ef, 0xff8, 0xffe, 0xffc, | |
| 474 | 0xfff | |
| 475 | ]; | |
| 476 | const AAC_SPEC_CB11_BITS: &[u8] = &[ | |
| 477 | 4, 5, 6, 7, 8, 8, 9, 10, 10, 10, 11, 11, 12, 11, 12, 12, | |
| 478 | 10, 5, 4, 5, 6, 7, 7, 8, 8, 9, 9, 9, 10, 10, 10, 10, | |
| 479 | 11, 8, 6, 5, 5, 6, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, | |
| 480 | 10, 10, 8, 7, 6, 6, 6, 7, 7, 8, 8, 8, 9, 9, 9, 10, | |
| 481 | 10, 10, 10, 8, 8, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, | |
| 482 | 10, 10, 10, 10, 8, 8, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, | |
| 483 | 9, 10, 10, 10, 10, 8, 9, 8, 8, 8, 8, 8, 8, 8, 9, 9, | |
| 484 | 9, 10, 10, 10, 10, 10, 8, 9, 8, 8, 8, 8, 8, 8, 9, 9, | |
| 485 | 9, 10, 10, 10, 10, 10, 10, 8, 10, 9, 8, 8, 9, 9, 9, 9, | |
| 486 | 9, 10, 10, 10, 10, 10, 10, 11, 8, 10, 9, 9, 9, 9, 9, 9, | |
| 487 | 9, 10, 10, 10, 10, 10, 10, 11, 11, 8, 11, 9, 9, 9, 9, 9, | |
| 488 | 9, 10, 10, 10, 10, 10, 11, 10, 11, 11, 8, 11, 10, 9, 9, 10, | |
| 489 | 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 8, 11, 10, 10, 10, | |
| 490 | 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 9, 11, 10, 9, | |
| 491 | 9, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 9, 11, 10, | |
| 492 | 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 9, 12, | |
| 493 | 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 12, 12, 9, | |
| 494 | 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, | |
| 495 | 5 | |
| 496 | ]; | |
| 497 | const AAC_SPEC_CB11_CODES: &[u16] = &[ | |
| 498 | 0x000, 0x006, 0x019, 0x03d, 0x09c, 0x0c6, 0x1a7, 0x390, | |
| 499 | 0x3c2, 0x3df, 0x7e6, 0x7f3, 0xffb, 0x7ec, 0xffa, 0xffe, | |
| 500 | 0x38e, 0x005, 0x001, 0x008, 0x014, 0x037, 0x042, 0x092, | |
| 501 | 0x0af, 0x191, 0x1a5, 0x1b5, 0x39e, 0x3c0, 0x3a2, 0x3cd, | |
| 502 | 0x7d6, 0x0ae, 0x017, 0x007, 0x009, 0x018, 0x039, 0x040, | |
| 503 | 0x08e, 0x0a3, 0x0b8, 0x199, 0x1ac, 0x1c1, 0x3b1, 0x396, | |
| 504 | 0x3be, 0x3ca, 0x09d, 0x03c, 0x015, 0x016, 0x01a, 0x03b, | |
| 505 | 0x044, 0x091, 0x0a5, 0x0be, 0x196, 0x1ae, 0x1b9, 0x3a1, | |
| 506 | 0x391, 0x3a5, 0x3d5, 0x094, 0x09a, 0x036, 0x038, 0x03a, | |
| 507 | 0x041, 0x08c, 0x09b, 0x0b0, 0x0c3, 0x19e, 0x1ab, 0x1bc, | |
| 508 | 0x39f, 0x38f, 0x3a9, 0x3cf, 0x093, 0x0bf, 0x03e, 0x03f, | |
| 509 | 0x043, 0x045, 0x09e, 0x0a7, 0x0b9, 0x194, 0x1a2, 0x1ba, | |
| 510 | 0x1c3, 0x3a6, 0x3a7, 0x3bb, 0x3d4, 0x09f, 0x1a0, 0x08f, | |
| 511 | 0x08d, 0x090, 0x098, 0x0a6, 0x0b6, 0x0c4, 0x19f, 0x1af, | |
| 512 | 0x1bf, 0x399, 0x3bf, 0x3b4, 0x3c9, 0x3e7, 0x0a8, 0x1b6, | |
| 513 | 0x0ab, 0x0a4, 0x0aa, 0x0b2, 0x0c2, 0x0c5, 0x198, 0x1a4, | |
| 514 | 0x1b8, 0x38c, 0x3a4, 0x3c4, 0x3c6, 0x3dd, 0x3e8, 0x0ad, | |
| 515 | 0x3af, 0x192, 0x0bd, 0x0bc, 0x18e, 0x197, 0x19a, 0x1a3, | |
| 516 | 0x1b1, 0x38d, 0x398, 0x3b7, 0x3d3, 0x3d1, 0x3db, 0x7dd, | |
| 517 | 0x0b4, 0x3de, 0x1a9, 0x19b, 0x19c, 0x1a1, 0x1aa, 0x1ad, | |
| 518 | 0x1b3, 0x38b, 0x3b2, 0x3b8, 0x3ce, 0x3e1, 0x3e0, 0x7d2, | |
| 519 | 0x7e5, 0x0b7, 0x7e3, 0x1bb, 0x1a8, 0x1a6, 0x1b0, 0x1b2, | |
| 520 | 0x1b7, 0x39b, 0x39a, 0x3ba, 0x3b5, 0x3d6, 0x7d7, 0x3e4, | |
| 521 | 0x7d8, 0x7ea, 0x0ba, 0x7e8, 0x3a0, 0x1bd, 0x1b4, 0x38a, | |
| 522 | 0x1c4, 0x392, 0x3aa, 0x3b0, 0x3bc, 0x3d7, 0x7d4, 0x7dc, | |
| 523 | 0x7db, 0x7d5, 0x7f0, 0x0c1, 0x7fb, 0x3c8, 0x3a3, 0x395, | |
| 524 | 0x39d, 0x3ac, 0x3ae, 0x3c5, 0x3d8, 0x3e2, 0x3e6, 0x7e4, | |
| 525 | 0x7e7, 0x7e0, 0x7e9, 0x7f7, 0x190, 0x7f2, 0x393, 0x1be, | |
| 526 | 0x1c0, 0x394, 0x397, 0x3ad, 0x3c3, 0x3c1, 0x3d2, 0x7da, | |
| 527 | 0x7d9, 0x7df, 0x7eb, 0x7f4, 0x7fa, 0x195, 0x7f8, 0x3bd, | |
| 528 | 0x39c, 0x3ab, 0x3a8, 0x3b3, 0x3b9, 0x3d0, 0x3e3, 0x3e5, | |
| 529 | 0x7e2, 0x7de, 0x7ed, 0x7f1, 0x7f9, 0x7fc, 0x193, 0xffd, | |
| 530 | 0x3dc, 0x3b6, 0x3c7, 0x3cc, 0x3cb, 0x3d9, 0x3da, 0x7d3, | |
| 531 | 0x7e1, 0x7ee, 0x7ef, 0x7f5, 0x7f6, 0xffc, 0xfff, 0x19d, | |
| 532 | 0x1c2, 0x0b5, 0x0a1, 0x096, 0x097, 0x095, 0x099, 0x0a0, | |
| 533 | 0x0a2, 0x0ac, 0x0a9, 0x0b1, 0x0b3, 0x0bb, 0x0c0, 0x18f, | |
| 534 | 0x004 | |
| 535 | ]; | |
| 536 | ||
| 537 | const AAC_SPEC_BITS: [&[u8]; 11] = [ | |
| 538 | AAC_SPEC_CB1_BITS, AAC_SPEC_CB2_BITS, AAC_SPEC_CB3_BITS, AAC_SPEC_CB4_BITS, | |
| 539 | AAC_SPEC_CB5_BITS, AAC_SPEC_CB6_BITS, AAC_SPEC_CB7_BITS, AAC_SPEC_CB8_BITS, | |
| 540 | AAC_SPEC_CB9_BITS, AAC_SPEC_CB10_BITS, AAC_SPEC_CB11_BITS | |
| 541 | ]; | |
| 542 | const AAC_SPEC_CODES: [&[u16]; 11] = [ | |
| 543 | AAC_SPEC_CB1_CODES, AAC_SPEC_CB2_CODES, AAC_SPEC_CB3_CODES, AAC_SPEC_CB4_CODES, | |
| 544 | AAC_SPEC_CB5_CODES, AAC_SPEC_CB6_CODES, AAC_SPEC_CB7_CODES, AAC_SPEC_CB8_CODES, | |
| 545 | AAC_SPEC_CB9_CODES, AAC_SPEC_CB10_CODES, AAC_SPEC_CB11_CODES | |
| 546 | ]; | |
| 547 | const AAC_UNSIGNED_CODEBOOK: [bool; 11] = [ | |
| 548 | false, false, true, true, false, false, true, true, true, true, true | |
| 549 | ]; | |
| 550 | const AAC_CODEBOOK_MODULO: [u16; 7] = [ | |
| 551 | 9, 9, 8, 8, 13, 13, 17 | |
| 552 | ]; | |
| 553 | ||
| 554 | const AAC_QUADS: [[i8; 4]; 81] = [ | |
| 555 | [ 0, 0, 0, 0 ], [ 0, 0, 0, 1 ], [ 0, 0, 0, 2 ], | |
| 556 | [ 0, 0, 1, 0 ], [ 0, 0, 1, 1 ], [ 0, 0, 1, 2 ], | |
| 557 | [ 0, 0, 2, 0 ], [ 0, 0, 2, 1 ], [ 0, 0, 2, 2 ], | |
| 558 | [ 0, 1, 0, 0 ], [ 0, 1, 0, 1 ], [ 0, 1, 0, 2 ], | |
| 559 | [ 0, 1, 1, 0 ], [ 0, 1, 1, 1 ], [ 0, 1, 1, 2 ], | |
| 560 | [ 0, 1, 2, 0 ], [ 0, 1, 2, 1 ], [ 0, 1, 2, 2 ], | |
| 561 | [ 0, 2, 0, 0 ], [ 0, 2, 0, 1 ], [ 0, 2, 0, 2 ], | |
| 562 | [ 0, 2, 1, 0 ], [ 0, 2, 1, 1 ], [ 0, 2, 1, 2 ], | |
| 563 | [ 0, 2, 2, 0 ], [ 0, 2, 2, 1 ], [ 0, 2, 2, 2 ], | |
| 564 | [ 1, 0, 0, 0 ], [ 1, 0, 0, 1 ], [ 1, 0, 0, 2 ], | |
| 565 | [ 1, 0, 1, 0 ], [ 1, 0, 1, 1 ], [ 1, 0, 1, 2 ], | |
| 566 | [ 1, 0, 2, 0 ], [ 1, 0, 2, 1 ], [ 1, 0, 2, 2 ], | |
| 567 | [ 1, 1, 0, 0 ], [ 1, 1, 0, 1 ], [ 1, 1, 0, 2 ], | |
| 568 | [ 1, 1, 1, 0 ], [ 1, 1, 1, 1 ], [ 1, 1, 1, 2 ], | |
| 569 | [ 1, 1, 2, 0 ], [ 1, 1, 2, 1 ], [ 1, 1, 2, 2 ], | |
| 570 | [ 1, 2, 0, 0 ], [ 1, 2, 0, 1 ], [ 1, 2, 0, 2 ], | |
| 571 | [ 1, 2, 1, 0 ], [ 1, 2, 1, 1 ], [ 1, 2, 1, 2 ], | |
| 572 | [ 1, 2, 2, 0 ], [ 1, 2, 2, 1 ], [ 1, 2, 2, 2 ], | |
| 573 | [ 2, 0, 0, 0 ], [ 2, 0, 0, 1 ], [ 2, 0, 0, 2 ], | |
| 574 | [ 2, 0, 1, 0 ], [ 2, 0, 1, 1 ], [ 2, 0, 1, 2 ], | |
| 575 | [ 2, 0, 2, 0 ], [ 2, 0, 2, 1 ], [ 2, 0, 2, 2 ], | |
| 576 | [ 2, 1, 0, 0 ], [ 2, 1, 0, 1 ], [ 2, 1, 0, 2 ], | |
| 577 | [ 2, 1, 1, 0 ], [ 2, 1, 1, 1 ], [ 2, 1, 1, 2 ], | |
| 578 | [ 2, 1, 2, 0 ], [ 2, 1, 2, 1 ], [ 2, 1, 2, 2 ], | |
| 579 | [ 2, 2, 0, 0 ], [ 2, 2, 0, 1 ], [ 2, 2, 0, 2 ], | |
| 580 | [ 2, 2, 1, 0 ], [ 2, 2, 1, 1 ], [ 2, 2, 1, 2 ], | |
| 581 | [ 2, 2, 2, 0 ], [ 2, 2, 2, 1 ], [ 2, 2, 2, 2 ], | |
| 582 | ]; | |
| 583 |