mousiki 0.2.1

Pure Rust Opus codec.
Documentation 
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//! Port of the SILK narrowband/midband NLSF codebook tables from
//! `silk/tables_NLSF_CB_NB_MB.c`.
//!
//! The tables expose the narrowband and mediumband NLSF codebook used during
//! stage-one and stage-two decoding of line spectral frequencies.

use super::tables_nlsf_cb_wb::SilkNlsfCb;

#[rustfmt::skip]
pub const SILK_NLSF_CB1_NB_MB_Q8: [u8; 320] = [
        12,     35,     60,     83,    108,    132,    157,    180,
       206,    228,     15,     32,     55,     77,    101,    125,
       151,    175,    201,    225,     19,     42,     66,     89,
       114,    137,    162,    184,    209,    230,     12,     25,
        50,     72,     97,    120,    147,    172,    200,    223,
        26,     44,     69,     90,    114,    135,    159,    180,
       205,    225,     13,     22,     53,     80,    106,    130,
       156,    180,    205,    228,     15,     25,     44,     64,
        90,    115,    142,    168,    196,    222,     19,     24,
        62,     82,    100,    120,    145,    168,    190,    214,
        22,     31,     50,     79,    103,    120,    151,    170,
       203,    227,     21,     29,     45,     65,    106,    124,
       150,    171,    196,    224,     30,     49,     75,     97,
       121,    142,    165,    186,    209,    229,     19,     25,
        52,     70,     93,    116,    143,    166,    192,    219,
        26,     34,     62,     75,     97,    118,    145,    167,
       194,    217,     25,     33,     56,     70,     91,    113,
       143,    165,    196,    223,     21,     34,     51,     72,
        97,    117,    145,    171,    196,    222,     20,     29,
        50,     67,     90,    117,    144,    168,    197,    221,
        22,     31,     48,     66,     95,    117,    146,    168,
       196,    222,     24,     33,     51,     77,    116,    134,
       158,    180,    200,    224,     21,     28,     70,     87,
       106,    124,    149,    170,    194,    217,     26,     33,
        53,     64,     83,    117,    152,    173,    204,    225,
        27,     34,     65,     95,    108,    129,    155,    174,
       210,    225,     20,     26,     72,     99,    113,    131,
       154,    176,    200,    219,     34,     43,     61,     78,
        93,    114,    155,    177,    205,    229,     23,     29,
        54,     97,    124,    138,    163,    179,    209,    229,
        30,     38,     56,     89,    118,    129,    158,    178,
       200,    231,     21,     29,     49,     63,     85,    111,
       142,    163,    193,    222,     27,     48,     77,    103,
       133,    158,    179,    196,    215,    232,     29,     47,
        74,     99,    124,    151,    176,    198,    220,    237,
        33,     42,     61,     76,     93,    121,    155,    174,
       207,    225,     29,     53,     87,    112,    136,    154,
       170,    188,    208,    227,     24,     30,     52,     84,
       131,    150,    166,    186,    203,    229,     37,     48,
        64,     84,    104,    118,    156,    177,    201,    230
];

#[rustfmt::skip]
pub const SILK_NLSF_CB1_NB_MB_WGHT_Q9: [i16; 320] = [
     2897, 2314, 2314, 2314, 2287, 2287, 2314, 2300, 2327, 2287,
     2888, 2580, 2394, 2367, 2314, 2274, 2274, 2274, 2274, 2194,
     2487, 2340, 2340, 2314, 2314, 2314, 2340, 2340, 2367, 2354,
     3216, 2766, 2340, 2340, 2314, 2274, 2221, 2207, 2261, 2194,
     2460, 2474, 2367, 2394, 2394, 2394, 2394, 2367, 2407, 2314,
     3479, 3056, 2127, 2207, 2274, 2274, 2274, 2287, 2314, 2261,
     3282, 3141, 2580, 2394, 2247, 2221, 2207, 2194, 2194, 2114,
     4096, 3845, 2221, 2620, 2620, 2407, 2314, 2394, 2367, 2074,
     3178, 3244, 2367, 2221, 2553, 2434, 2340, 2314, 2167, 2221,
     3338, 3488, 2726, 2194, 2261, 2460, 2354, 2367, 2207, 2101,
     2354, 2420, 2327, 2367, 2394, 2420, 2420, 2420, 2460, 2367,
     3779, 3629, 2434, 2527, 2367, 2274, 2274, 2300, 2207, 2048,
     3254, 3225, 2713, 2846, 2447, 2327, 2300, 2300, 2274, 2127,
     3263, 3300, 2753, 2806, 2447, 2261, 2261, 2247, 2127, 2101,
     2873, 2981, 2633, 2367, 2407, 2354, 2194, 2247, 2247, 2114,
     3225, 3197, 2633, 2580, 2274, 2181, 2247, 2221, 2221, 2141,
     3178, 3310, 2740, 2407, 2274, 2274, 2274, 2287, 2194, 2114,
     3141, 3272, 2460, 2061, 2287, 2500, 2367, 2487, 2434, 2181,
     3507, 3282, 2314, 2700, 2647, 2474, 2367, 2394, 2340, 2127,
     3423, 3535, 3038, 3056, 2300, 1950, 2221, 2274, 2274, 2274,
     3404, 3366, 2087, 2687, 2873, 2354, 2420, 2274, 2474, 2540,
     3760, 3488, 1950, 2660, 2897, 2527, 2394, 2367, 2460, 2261,
     3028, 3272, 2740, 2888, 2740, 2154, 2127, 2287, 2234, 2247,
     3695, 3657, 2025, 1969, 2660, 2700, 2580, 2500, 2327, 2367,
     3207, 3413, 2354, 2074, 2888, 2888, 2340, 2487, 2247, 2167,
     3338, 3366, 2846, 2780, 2327, 2154, 2274, 2287, 2114, 2061,
     2327, 2300, 2181, 2167, 2181, 2367, 2633, 2700, 2700, 2553,
     2407, 2434, 2221, 2261, 2221, 2221, 2340, 2420, 2607, 2700,
     3038, 3244, 2806, 2888, 2474, 2074, 2300, 2314, 2354, 2380,
     2221, 2154, 2127, 2287, 2500, 2793, 2793, 2620, 2580, 2367,
     3676, 3713, 2234, 1838, 2181, 2753, 2726, 2673, 2513, 2207,
     2793, 3160, 2726, 2553, 2846, 2513, 2181, 2394, 2221, 2181
];

#[rustfmt::skip]
pub const SILK_NLSF_CB1_ICDF_NB_MB: [u8; 64] = [
       212,    178,    148,    129,    108,     96,     85,     82,
        79,     77,     61,     59,     57,     56,     51,     49,
        48,     45,     42,     41,     40,     38,     36,     34,
        31,     30,     21,     12,     10,      3,      1,      0,
       255,    245,    244,    236,    233,    225,    217,    203,
       190,    176,    175,    161,    149,    136,    125,    114,
       102,     91,     81,     71,     60,     52,     43,     35,
        28,     20,     19,     18,     12,     11,      5,      0
];

#[rustfmt::skip]
pub const SILK_NLSF_CB2_SELECT_NB_MB: [u8; 160] = [
        16,      0,      0,      0,      0,     99,     66,     36,
        36,     34,     36,     34,     34,     34,     34,     83,
        69,     36,     52,     34,    116,    102,     70,     68,
        68,    176,    102,     68,     68,     34,     65,     85,
        68,     84,     36,    116,    141,    152,    139,    170,
       132,    187,    184,    216,    137,    132,    249,    168,
       185,    139,    104,    102,    100,     68,     68,    178,
       218,    185,    185,    170,    244,    216,    187,    187,
       170,    244,    187,    187,    219,    138,    103,    155,
       184,    185,    137,    116,    183,    155,    152,    136,
       132,    217,    184,    184,    170,    164,    217,    171,
       155,    139,    244,    169,    184,    185,    170,    164,
       216,    223,    218,    138,    214,    143,    188,    218,
       168,    244,    141,    136,    155,    170,    168,    138,
       220,    219,    139,    164,    219,    202,    216,    137,
       168,    186,    246,    185,    139,    116,    185,    219,
       185,    138,    100,    100,    134,    100,    102,     34,
        68,     68,    100,     68,    168,    203,    221,    218,
       168,    167,    154,    136,    104,     70,    164,    246,
       171,    137,    139,    137,    155,    218,    219,    139
];

#[rustfmt::skip]
pub const SILK_NLSF_CB2_ICDF_NB_MB: [u8; 72] = [
       255,    254,    253,    238,     14,      3,      2,      1,
         0,    255,    254,    252,    218,     35,      3,      2,
         1,      0,    255,    254,    250,    208,     59,      4,
         2,      1,      0,    255,    254,    246,    194,     71,
        10,      2,      1,      0,    255,    252,    236,    183,
        82,      8,      2,      1,      0,    255,    252,    235,
       180,     90,     17,      2,      1,      0,    255,    248,
       224,    171,     97,     30,      4,      1,      0,    255,
       254,    236,    173,     95,     37,      7,      1,      0
];

#[rustfmt::skip]
pub const SILK_NLSF_CB2_BITS_NB_MB_Q5: [u8; 72] = [
       255,    255,    255,    131,      6,    145,    255,    255,
       255,    255,    255,    236,     93,     15,     96,    255,
       255,    255,    255,    255,    194,     83,     25,     71,
       221,    255,    255,    255,    255,    162,     73,     34,
        66,    162,    255,    255,    255,    210,    126,     73,
        43,     57,    173,    255,    255,    255,    201,    125,
        71,     48,     58,    130,    255,    255,    255,    166,
       110,     73,     57,     62,    104,    210,    255,    255,
       251,    123,     65,     55,     68,    100,    171,    255
];

#[rustfmt::skip]
pub const SILK_NLSF_PRED_NB_MB_Q8: [u8; 18] = [
       179,    138,    140,    148,    151,    149,    153,    151,
       163,    116,     67,     82,     59,     92,     72,    100,
        89,     92
];

#[rustfmt::skip]
pub const SILK_NLSF_DELTA_MIN_NB_MB_Q15: [i16; 11] = [
       250,      3,      6,      3,      3,      3,      4,      3,
         3,      3,    461
];

pub static SILK_NLSF_CB_NB_MB: SilkNlsfCb = SilkNlsfCb {
    n_vectors: 32,
    order: 10,
    quant_step_size_q16: 11796,
    inv_quant_step_size_q6: 356,
    cb1_nlsf_q8: &SILK_NLSF_CB1_NB_MB_Q8,
    cb1_wght_q9: &SILK_NLSF_CB1_NB_MB_WGHT_Q9,
    cb1_icdf: &SILK_NLSF_CB1_ICDF_NB_MB,
    pred_q8: &SILK_NLSF_PRED_NB_MB_Q8,
    ec_sel: &SILK_NLSF_CB2_SELECT_NB_MB,
    ec_icdf: &SILK_NLSF_CB2_ICDF_NB_MB,
    ec_rates_q5: &SILK_NLSF_CB2_BITS_NB_MB_Q5,
    delta_min_q15: &SILK_NLSF_DELTA_MIN_NB_MB_Q15,
};

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn nb_mb_codebook_metadata_matches_reference() {
        assert_eq!(SILK_NLSF_CB_NB_MB.n_vectors, 32);
        assert_eq!(SILK_NLSF_CB_NB_MB.order, 10);
        assert_eq!(SILK_NLSF_CB_NB_MB.quant_step_size_q16, 11796);
        assert_eq!(SILK_NLSF_CB_NB_MB.inv_quant_step_size_q6, 356);
        assert_eq!(SILK_NLSF_CB_NB_MB.cb1_nlsf_q8.len(), 320);
        assert_eq!(SILK_NLSF_CB_NB_MB.cb1_nlsf_q8[0], 12);
        assert_eq!(SILK_NLSF_CB_NB_MB.cb1_nlsf_q8[319], 230);
        assert_eq!(SILK_NLSF_CB_NB_MB.cb1_wght_q9.len(), 320);
        assert_eq!(SILK_NLSF_CB_NB_MB.cb1_icdf.len(), 64);
        assert_eq!(SILK_NLSF_CB_NB_MB.ec_sel.len(), 160);
        assert_eq!(SILK_NLSF_CB_NB_MB.ec_icdf.len(), 72);
        assert_eq!(SILK_NLSF_CB_NB_MB.ec_rates_q5.len(), 72);
        assert_eq!(SILK_NLSF_CB_NB_MB.delta_min_q15.len(), 11);
        assert_eq!(SILK_NLSF_CB_NB_MB.delta_min_q15[0], 250);
        assert_eq!(SILK_NLSF_CB_NB_MB.delta_min_q15[10], 461);
    }
}