enc_rom.c

关于AMR-WB+语音压缩编码的实现代码

/*
 *===================================================================
 *  3GPP AMR Wideband Floating-point Speech Codec
 *===================================================================
 */
#include "typedef.h"
#define L_SUBFR         64    /* Subframe size                       */
#define ORDER           16    /* Order of linear prediction filter   */
#define M               16    /* Order of LP filter                  */
#define NB_SUBFR        4     /* Number of subframe per frame        */
#define UP_SAMP         4
#define L_INTERPOL1     4
#define L_INTERPOL2     16
#define L_WINDOW        384   /* hamming cos window size             */
#define SIZE_BK1        256
#define SIZE_BK2        256
#define SIZE_BK21       64
#define SIZE_BK22       128
#define SIZE_BK23       128
#define SIZE_BK24       32
#define SIZE_BK25       32
#define SIZE_BK21_36b   128
#define SIZE_BK22_36b   128
#define SIZE_BK23_36b   64
#define SIZE_BK_NOISE1  64
#define SIZE_BK_NOISE2  64
#define SIZE_BK_NOISE3  64
#define SIZE_BK_NOISE4  32
#define SIZE_BK_NOISE5  32
#define NB_QUA_GAIN6B   64    /* Number of quantization level        */
#define NB_QUA_GAIN7B   128   /* Number of quantization level        */
/* 16-byte align start */
/*
 * isf codebooks:  two-stage VQ with split-by-5 in 2nd stage
 *
 * codebook   vector dimension    number of vectors
 * ~~~~~~~~   ~~~~~~~~~~~~~~~~    ~~~~~~~~~~~~~~~~~
 *    1_1            9                  256
 *    1_2            7                  256
 *    2_1            3                  64
 *    2_2            3                  128
 *    2_3            3                  128
 *    2_4            3                  32
 *    2_5            4                  32
 */
/*
 * 1st stage codebook; 1st split: isf0 to isf8
 */
const Float32 E_ROM_dico1_isf[SIZE_BK1 * 9] = {
   226.1477F, 422.2338F, 404.4563F, 152.3442F, 1.2553F, -102.5648F, -77.5073F, -32.1403F, 14.9134F,
   6.9890F, -26.5711F, -4.8001F, 122.2654F, 297.4533F, 158.0168F, 97.1963F, 43.4786F, -29.4927F,
   289.1461F, 493.4574F, 504.5048F, 393.1421F, 389.3840F, 397.8990F, 397.4072F, 381.0959F, 360.5083F,
   -35.6482F, 323.0566F, 370.2882F, 252.9499F, 239.6172F, 209.0563F, 203.9713F, 191.4865F, 164.6219F,
   16.1026F, -17.1264F, -109.6817F, -184.2085F, 254.5133F, 208.7087F, 75.3774F, 52.8718F, -35.2364F,
   15.8336F, -47.0775F, -139.1713F, -23.5561F, 259.0049F, 120.0214F, 23.8825F, -18.5948F, -134.3813F,
   217.4017F, 369.5988F, 409.6801F, 338.5433F, 330.4056F, 386.7012F, 434.5276F, 492.7760F, 484.6164F,
   -46.1429F, -79.6218F, 128.1106F, 199.9543F, 339.7710F, 309.8338F, 238.4430F, 156.8895F, 72.7742F,
   61.1308F, 114.6106F, 28.7939F, -131.9070F, -185.5015F, -350.3943F, -232.0556F, -62.9803F, -194.0513F,
   88.2757F, 51.2294F, -53.9555F, 120.0698F, 65.9863F, -105.8813F, -64.0929F, -151.0651F, -243.7652F,
   24.1201F, -12.6302F, -23.7808F, -98.2577F, -211.1396F, -323.5447F, -401.0499F, -204.4768F, -258.4671F,
   39.7202F, -23.9607F, 55.2442F, 43.6804F, -105.4100F, -97.8749F, -211.3002F, 9.7097F, -58.7138F,
   2.1766F, -51.7480F, -138.9340F, -268.1601F, -37.5098F, -125.8675F, -203.7929F, -12.2603F, -127.2472F,
   -14.0622F, -81.7822F, -203.4806F, -89.5766F, 119.8931F, -51.7010F, -2.1055F, -38.5536F, -149.8808F,
   23.6196F, -19.7370F, -92.7527F, -260.9933F, -380.1402F, -158.8319F, -276.5396F, -29.3644F, -67.0346F,
   10.0869F, -54.0238F, -104.0772F, 43.4993F, -118.0066F, 16.7674F, -108.4172F, -138.9907F, -140.3299F,
   222.5364F, 321.1411F, 193.8368F, -60.0340F, -121.7460F, -35.9078F, 53.6514F, 109.0639F, 145.0366F,
   -57.1173F, 143.6362F, 159.6491F, 26.6189F, 2.3305F, 30.0608F, 65.3329F, 78.8683F, 63.4622F,
   247.1436F, 350.7171F, 389.0685F, 295.2953F, 258.6614F, 266.7955F, 305.9202F, 355.1905F, 389.1698F,
   -40.0882F, 114.6876F, 237.0104F, 161.9769F, 188.5636F, 180.3751F, 187.4189F, 168.3521F, 159.5175F,
   -46.7654F, -132.1011F, -238.9261F, -204.8685F, 228.1911F, 129.1599F, 36.0960F, 169.1651F, 107.7902F,
   -69.5087F, -114.5055F, -60.0494F, -15.9078F, 105.1520F, 39.1060F, -3.6140F, 83.1345F, 62.4498F,
   324.4036F, 287.6214F, 108.7328F, 320.4871F, 489.7306F, 267.9902F, 278.2168F, 405.7287F, 184.7344F,
   -85.2571F, -118.8197F, 180.9905F, 177.4239F, 154.8864F, 106.5995F, 78.7528F, 111.5907F, 106.4840F,
   -90.5891F, 2.5823F, 2.5231F, -151.4854F, -184.4761F, -166.9757F, -147.6148F, -65.2055F, -39.1239F,
   -114.9974F, -71.3698F, 52.3087F, -18.1814F, 39.4264F, -34.2483F, -32.8691F, -45.8165F, -1.2029F,
   22.1063F, 6.7469F, -79.0146F, -247.7831F, -386.2835F, -437.2287F, -208.2931F, 68.6375F, -14.1447F,
   46.7840F, -11.0692F, 9.1612F, 43.4278F, -124.5574F, 124.1172F, -8.5368F, -30.1898F, 103.7909F,
   -105.9007F, -181.3862F, -169.7189F, -257.0920F, -250.0032F, -150.2815F, -150.4918F, -38.5650F, -26.7658F,
   -77.3138F, -101.1008F, -103.9903F, -17.1337F, -15.2577F, -54.2134F, -53.5373F, 66.9219F, 25.6872F,
   3.6265F, -56.7222F, -147.2143F, -330.5455F, -390.5518F, -43.3139F, -126.9112F, 133.5488F, 52.7399F,
   -31.5816F, -111.6706F, -148.4743F, 75.1588F, -22.0969F, 119.9764F, 29.6891F, -9.5309F, -54.7378F,
   264.5383F, 274.1302F, 96.5690F, 21.7008F, 97.2691F, 55.1255F, -40.9705F, -92.2272F, -38.6482F,
   13.8969F, -15.1538F, -27.1357F, 135.8413F, 77.4989F, -36.1739F, 125.8114F, 35.5744F, -28.2436F,
   196.2991F, 345.8166F, 588.9347F, 510.5197F, 500.8432F, 457.6244F, 436.9384F, 472.1788F, 414.4815F,
   162.4519F, 280.7038F, 386.4482F, 479.3623F, 390.8287F, 411.1292F, 372.5701F, 289.3485F, 407.8594F,
   -49.5343F, -147.0080F, -256.8338F, 54.1618F, 243.5530F, 87.1110F, 195.7264F, 119.5070F, 85.9479F,
   -43.9641F, -150.1866F, -310.9041F, 196.7455F, 171.2780F, 33.0834F, 83.3645F, -32.4579F, -75.7126F,
   228.4330F, 442.3277F, 481.6548F, 426.3000F, 487.1132F, 559.8019F, 590.4699F, 565.5949F, 513.3911F,
   -68.0544F, -164.7799F, 2.8141F, 451.2739F, 425.3554F, 461.7245F, 391.6532F, 369.1004F, 314.9413F,
   3.2743F, -49.3561F, -123.9568F, -40.1754F, -137.2377F, -271.6588F, -38.4305F, -104.5226F, -209.8071F,
   12.8092F, -40.2922F, -113.2953F, 65.4057F, -15.2443F, -159.0118F, 17.0998F, -81.3044F, -146.3446F,
   40.4305F, -8.9102F, -24.9719F, -113.7701F, -248.7160F, -332.5068F, -423.4328F, -23.8073F, -43.9266F,
   -29.4866F, -119.6504F, -169.5775F, 85.2585F, -57.7724F, -138.3062F, -265.4940F, -52.0935F, -84.4635F,
   -47.3285F, -147.4516F, -280.5169F, -38.0164F, -50.7237F, -141.1316F, -60.9737F, -147.8608F, -233.9212F,
   -22.0146F, -99.1479F, -228.8716F, 91.6618F, 61.1343F, -83.5247F, 4.2834F, -101.7035F, -58.0283F,
   -48.6094F, -104.2664F, -155.2664F, -226.4858F, -231.7223F, -205.7180F, -314.6280F, -150.3995F, 135.1819F,
   -75.2552F, -171.9896F, -276.5969F, -137.0060F, -55.2086F, -99.5797F, -195.1097F, -57.2647F, -72.3255F,
   174.9245F, 258.0028F, 192.8297F, 81.3562F, 198.8450F, 180.2081F, 132.0824F, 113.5126F, 58.1412F,
   -87.2559F, 34.2946F, 130.7081F, 62.1078F, 82.7816F, 74.4854F, 111.6818F, 120.3099F, 80.1334F,
   -11.9671F, 183.3834F, 313.7754F, 257.2813F, 241.7612F, 256.9710F, 329.4492F, 385.5374F, 434.7875F,
   -66.8195F, -94.6890F, 200.6887F, 141.3063F, 115.2635F, 204.7280F, 215.7973F, 270.9673F, 228.4647F,
   -24.9070F, -120.1441F, -175.1481F, -8.0896F, 110.9215F, 307.0280F, 174.2457F, 112.7169F, 35.9639F,
   -85.1717F, -152.2496F, -2.5803F, 66.0904F, 80.5138F, 128.8919F, 137.5303F, 159.4245F, 139.7766F,
   -14.1396F, 274.4125F, 374.6268F, 335.3957F, 336.4666F, 435.5791F, 495.5083F, 529.9642F, 509.9389F,
   -51.7794F, -133.3125F, -25.4473F, 264.8054F, 162.9175F, 171.9332F, 189.6735F, 202.1561F, 304.5228F,
   12.7820F, -17.2653F, -74.5083F, -134.5510F, -180.1133F, -294.9349F, -78.6120F, 84.8225F, -12.0772F,
   -137.7282F, -213.7303F, -17.3509F, 48.2225F, -23.9524F, -26.4293F, -30.7054F, 11.1575F, 23.4229F,
   28.3886F, -22.3550F, -158.4269F, -299.3692F, -485.7126F, -469.8884F, 93.8213F, 156.3351F, 64.4156F,
   -28.7029F, -110.1881F, -234.8032F, -83.3735F, -66.7772F, -146.3531F, 129.8178F, 13.7979F, -40.1959F,
   -11.2220F, -81.0542F, -215.8795F, -186.0052F, -249.1487F, -354.7951F, 67.0249F, -8.7287F, -52.7080F,
   -75.1895F, -93.5102F, -63.8842F, -40.2971F, -43.3423F, -18.3122F, 59.9384F, 48.9469F, 42.9198F,
   -0.3036F, -79.3921F, -222.4614F, -402.4193F, -556.4007F, -208.9512F, 60.4822F, 0.2592F, 57.2596F,
   -130.2469F, -254.9911F, -337.7263F, -76.9102F, -61.5888F, -8.3782F, -17.2822F, 37.1637F, 42.0772F,
   151.9460F, 229.6417F, 191.5279F, 12.9809F, -92.7110F, -204.7091F, -245.2630F, -53.2589F, -101.3680F,
   15.8084F, -69.0148F, -180.2926F, 176.9411F, 336.6405F, 148.3504F, 51.2260F, -50.6708F, -158.2893F,
   328.7315F, 655.2856F, 719.0299F, 605.1412F, 575.6907F, 490.5742F, 422.8277F, 353.4364F, 289.8675F,
   144.5240F, 474.8398F, 690.7612F, 638.0545F, 473.3627F, 248.6244F, 8.4810F, -128.9032F, 27.8837F,
   -29.8052F, -109.6768F, -289.4402F, -289.9344F, 350.9098F, 241.8981F, 108.0220F, 27.7568F, -86.8368F,
   -12.5998F, -103.5273F, -217.2510F, -9.8401F, 388.4400F, 266.5437F, 118.9818F, 49.1643F, -64.3603F,
   28.5445F, 288.4229F, 348.8730F, 378.0052F, 387.8595F, 690.6161F, 887.8799F, 718.7092F, 543.2699F,
   -27.0127F, -136.3472F, -228.6534F, 91.4073F, 452.4637F, 352.8853F, 244.5759F, 199.3164F, 97.9452F,
   -0.2574F, -38.8124F, -106.0784F, -81.9691F, -235.3859F, -136.9961F, -210.8024F, -316.9619F, -149.7671F,
   -6.3268F, -89.9384F, -197.0412F, 160.1820F, 58.3899F, -80.1867F, -134.0614F, -254.4108F, -249.4793F,
   40.1439F, -3.4822F, -88.7857F, -80.2522F, -219.3521F, -305.1500F, -421.5967F, -471.9935F, -60.7522F,
   55.8529F, 24.5260F, -52.9174F, -26.1113F, -123.8744F, -235.0002F, -306.0707F, -450.7246F, -249.8812F,
   -56.2297F, -152.7118F, -263.1169F, -243.0294F, -78.2260F, -99.3225F, -257.7953F, -369.9445F, -154.2971F,
   -15.4570F, -97.8124F, -244.1879F, 10.4628F, 212.1971F, 36.6411F, -51.0200F, -150.9477F, -262.8206F,
   -47.9169F, -145.0780F, -295.8412F, -176.3119F, -220.4176F, -239.8767F, -162.2583F, -277.5646F, -13.5098F,
   -45.4312F, -120.7871F, -231.7391F, -104.6837F, 93.3399F, -13.0435F, -131.8873F, -253.9684F, -52.8010F,
   36.7261F, 97.8902F, 216.2452F, 22.2667F, -121.9688F, -165.2371F, -60.1795F, -22.1111F, 91.7368F,
   -104.8126F, -27.6777F, 148.6412F, 44.3956F, -17.0786F, -34.0943F, 48.6552F, 67.5896F, 52.1341F,
   590.8627F, 669.3461F, 483.5975F, 208.4471F, 107.7190F, 123.1392F, 179.9797F, 179.2124F, 198.5541F,
   -51.3512F, -7.3050F, 448.6575F, 261.8456F, 189.7417F, 139.0593F, 120.8041F, 144.0752F, 115.5179F,
   -87.2434F, -195.6786F, -351.1762F, -282.1990F, -27.3961F, 2.1866F, 51.0065F, 120.9792F, 154.0704F,
   -38.7878F, -118.5436F, -201.9035F, 97.1421F, 24.9785F, -20.8748F, 52.5830F, -4.3230F, 177.0334F,
   -57.4864F, -155.8205F, -285.0674F, -156.5139F, 319.0307F, 288.4199F, 313.3522F, 292.7644F, 224.7193F,
   -60.1766F, -170.1086F, -288.5482F, 312.6666F, 231.6275F, 142.7810F, 206.6260F, 124.0985F, 127.5073F,
   -87.3474F, 17.7221F, -15.2086F, -151.2513F, -201.3116F, -202.2629F, -237.4979F, -150.1082F, -125.3288F,
   -123.1549F, -147.2588F, 55.9560F, -39.6018F, -44.1818F, -147.1130F, -69.1241F, -56.1722F, -4.4924F,
   45.5201F, 15.5222F, -93.3382F, -254.1893F, -410.5618F, -226.8515F, -287.7839F, -386.6172F, -128.1340F,
   10.1233F, -19.6005F, -61.5127F, -8.8349F, -177.1218F, -110.5849F, -207.5041F, -213.2586F, 74.8075F,
   -98.2741F, -195.7624F, -290.1091F, -230.1600F, -244.7515F, -194.7701F, -128.1076F, -46.1729F, -28.2903F,
   -126.3800F, -193.1177F, -95.3231F, -119.6219F, -56.1586F, -69.0881F, -102.1922F, -52.5595F, -30.4027F,
   -13.9604F, -91.5188F, -202.7529F, -375.3352F, -503.8488F, -122.5019F, -187.2047F, -144.9473F, -17.6464F,
   -37.1158F, -113.9219F, -208.9531F, -3.1283F, -117.0010F, 43.6858F, -64.0984F, -108.2942F, 77.5131F,
   -38.6401F, -49.9736F, 343.9084F, 326.3879F, 226.1680F, 136.9212F, 9.0736F, -37.1756F, -84.7974F,
   -10.5004F, -100.6890F, 48.4106F, 394.7867F, 233.0419F, 165.9509F, 56.3291F, 2.7924F, -28.5845F,
   164.3221F, 505.0226F, 640.4844F, 633.9930F, 680.5828F, 631.7908F, 585.4574F, 501.5025F, 393.1295F,
   -37.0300F, 293.6539F, 656.3401F, 612.9729F, 632.0821F, 560.9024F, 468.8401F, 382.9867F, 278.2211F,
   -26.9959F, -117.0381F, -266.9459F, -169.9414F, 442.3678F, 351.1593F, 196.7216F, 129.6217F, 42.5401F,
   -28.9160F, -126.1295F, -248.8180F, 219.9974F, 419.6462F, 237.5276F, 144.8018F, 41.0794F, -19.0438F,
   -30.6524F, 324.5342F, 466.4269F, 433.6403F, 538.3355F, 578.5025F, 582.9940F, 533.2873F, 475.3817F,
   -101.0867F, -47.3945F, 562.3863F, 521.2437F, 635.9947F, 581.9960F, 561.7294F, 477.7560F, 364.4759F,
   -32.1078F, -119.5424F, -239.6324F, -86.9073F, -147.6602F, -263.4799F, -212.9377F, -261.9229F, -330.2635F,
   20.8260F, -48.5704F, -135.4246F, 164.8506F, 20.4817F, -48.8885F, -105.4348F, -206.6621F, 3.6375F,
   30.9311F, -34.7599F, -124.8998F, -258.7565F, -390.0532F, -468.4556F, -485.3543F, -264.1984F, -115.9895F,
   -26.5921F, -106.6166F, -238.7686F, 53.4977F, -56.8913F, -155.1848F, -245.0791F, -329.9394F, -85.9503F,
   -43.8040F, -135.2615F, -311.2635F, -322.8195F, 91.5184F, -51.5741F, -73.3097F, -108.7735F, -204.0501F,
   -61.9589F, -158.0212F, -286.8211F, -163.7011F, 114.5577F, 29.0545F, -65.0919F, -65.1646F, 71.9506F,
   -59.8760F, -170.6047F, -325.2270F, -421.8182F, -131.3054F, -184.2594F, -219.1312F, -132.9352F, -98.8301F,
   -65.8626F, -165.1987F, -320.2537F, -353.1492F, -51.0331F, -7.3456F, -135.3074F, -235.8573F, 12.1485F,
   12.8460F, -11.9241F, 121.7405F, 24.2470F, -57.8971F, 19.1365F, -23.0243F, 220.3897F, 189.9156F,
   -119.6102F, -129.9914F, 75.9549F, -17.3359F, 26.2798F, 28.0181F, 57.3185F, 79.8925F, 95.0199F,
   -81.0524F, -19.0879F, 531.3251F, 384.0082F, 378.6000F, 387.1200F, 396.1896F, 433.4382F, 379.9696F,
   -82.3204F, -67.1148F, 345.0646F, 244.9884F, 277.8043F, 263.1406F, 275.4622F, 311.7924F, 291.4141F,
   -34.2889F, -127.1388F, -298.1820F, -380.4511F, 268.4245F, 354.6007F, 200.7670F, 149.3555F, 67.1469F,
   -114.0830F, -239.0252F, -314.3921F, 24.6004F, 51.2722F, 105.4223F, 101.1157F, 137.3569F, 135.9245F,
   -91.7432F, -32.7591F, 373.1560F, 319.3955F, 437.4347F, 503.4907F, 608.7997F, 578.2119F, 502.0230F,
   -70.3367F, -179.9099F, -239.7652F, 256.5794F, 269.9891F, 291.1810F, 333.6932F, 305.8695F, 278.4421F,
   -38.0671F, -120.8247F, -186.4547F, -239.7784F, -303.6527F, -286.7954F, -300.0361F, -205.3057F, -184.5087F,
   -134.2125F, -185.9339F, -13.8119F, -65.8529F, 19.0133F, -30.1823F, -58.4970F, -93.5678F, -55.1841F,
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