inc_lsp_575.tbl

C写的MPEG4音频源代码(G.723/G.729)

/*
This software module was originally developed by

Naoya Tanaka (Matsushita Communication Industrial Co., Ltd.)

and edited by

Yuji Maeda (Sony Corporation)

and 

Christian Mittendorf (Robert Bosch GmbH Germany)

in the course of development of the
MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and 3.
This software module is an implementation of a part of one or more
MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4 Audio
standard. ISO/IEC  gives users of the MPEG-2 NBC/MPEG-4 Audio standards
free license to this software module or modifications thereof for use in
hardware or software products claiming conformance to the MPEG-2 NBC/
MPEG-4 Audio  standards. Those intending to use this software module in
hardware or software products are advised that this use may infringe
existing patents. The original developer of this software module and
his/her company, the subsequent editors and their companies, and ISO/IEC
have no liability for use of this software module or modifications
thereof in an implementation. Copyright is not released for non
MPEG-2 NBC/MPEG-4 Audio conforming products. The original developer
retains full right to use the code for his/her  own purpose, assign or
donate the code to a third party and to inhibit third party from using
the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
This copyright notice must be included in all copies or derivative works.
Copyright (c)1996, 1997.
*/



static long dim_1[2] = {10, 0};  /* dimensions of the 1st VQ vectors */
static long dim_2[2] = {5, 5};   /* numbers of the 1st VQ codes */
static long ncd_1[2] = {32, 0};  /* dimensions of the 2nd VQ vectors */
static long ncd_2[2] = {64, 16}; /* numbers od the 2nd VQ codes */


  /*****************************************************************************
   *
   * modified lsp - table 1st stage
   *
   * 16 bits signed; scale_factor 1; 
   * quantized with: fixed_value = (original_value * 2^15 * scale factor +- 0.5)
   *                 float_value = fixed_value / (scale_factor * 2^15)
   * 09.09.98 Christian Mittendorf, Robert Bosch GmbH Germany
   *
   *****************************************************************************/

static float    lsp_tbl[32*10] =
{
0.1029968261718750,
0.1499023437500000,
0.1998596191406250,
0.2758789062500000,
0.3339233398437500,
0.4051513671875000,
0.5736694335937500,
0.6502380371093750,
0.7731933593750000,
0.8719482421875000,
0.0907592773437500,
0.1329956054687500,
0.1870422363281250,
0.2555236816406250,
0.3077392578125000,
0.3796997070312500,
0.5843811035156250,
0.7078552246093750,
0.8002929687500000,
0.8800964355468750,
0.0939025878906250,
0.1330566406250000,
0.1875915527343750,
0.2975769042968750,
0.3684082031250000,
0.4345397949218750,
0.5105285644531250,
0.5923461914062500,
0.7780456542968750,
0.8699951171875000,
0.0890808105468750,
0.1241149902343750,
0.2005310058593750,
0.2761535644531250,
0.3448791503906250,
0.4020996093750000,
0.4744262695312500,
0.6650390625000000,
0.7811279296875000,
0.8776245117187500,
0.1200866699218750,
0.1836853027343750,
0.2808837890625000,
0.3715515136718750,
0.4720764160156250,
0.5600891113281250,
0.6631774902343750,
0.7398376464843750,
0.8385009765625000,
0.8891906738281250,
0.1143188476562500,
0.1798706054687500,
0.2546997070312500,
0.3343505859375000,
0.4292907714843750,
0.5013122558593750,
0.6097412109375000,
0.6964111328125000,
0.7990112304687500,
0.8663330078125000,
0.0957641601562500,
0.1473999023437500,
0.2041320800781250,
0.2963867187500000,
0.3995666503906250,
0.4517822265625000,
0.5396423339843750,
0.6191101074218750,
0.7206420898437500,
0.8501586914062500,
0.1116943359375000,
0.1704406738281250,
0.2565917968750000,
0.3448486328125000,
0.4099731445312500,
0.4603881835937500,
0.5613403320312500,
0.6701660156250000,
0.7745666503906250,
0.8516845703125000,
0.0776977539062500,
0.1061401367187500,
0.1617736816406250,
0.3508911132812500,
0.4228210449218750,
0.4805297851562500,
0.5796203613281250,
0.6558227539062500,
0.8015136718750000,
0.8669128417968750,
0.0736999511718750,
0.0988464355468750,
0.1697082519531250,
0.3929748535156250,
0.4793395996093750,
0.5306091308593750,
0.6210937500000000,
0.6801147460937500,
0.8037414550781250,
0.8641967773437500,
0.0881042480468750,
0.1571655273437500,
0.2587585449218750,
0.3475341796875000,
0.4429016113281250,
0.5274047851562500,
0.6365356445312500,
0.7209167480468750,
0.8226928710937500,
0.8890991210937500,
0.0680236816406250,
0.1270141601562500,
0.2425842285156250,
0.3501586914062500,
0.4459228515625000,
0.5184936523437500,
0.6099548339843750,
0.6901245117187500,
0.7870788574218750,
0.8651428222656250,
0.0636596679687500,
0.1199951171875000,
0.2564392089843750,
0.3793334960937500,
0.4902648925781250,
0.5858154296875000,
0.6790771484375000,
0.7563781738281250,
0.8381347656250000,
0.8930664062500000,
0.1080017089843750,
0.1815490722656250,
0.3043518066406250,
0.4158325195312500,
0.5234680175781250,
0.6232604980468750,
0.7062988281250000,
0.7738037109375000,
0.8549804687500000,
0.9031372070312500,
0.1143798828125000,
0.1885986328125000,
0.3043518066406250,
0.3895263671875000,
0.4617309570312500,
0.5279541015625000,
0.6296081542968750,
0.7033081054687500,
0.8044738769531250,
0.8744506835937500,
0.1222229003906250,
0.2092285156250000,
0.3679504394531250,
0.4437561035156250,
0.5292968750000000,
0.6086120605468750,
0.6801147460937500,
0.7408752441406250,
0.8186035156250000,
0.8709716796875000,
0.0903015136718750,
0.1495971679687500,
0.2066650390625000,
0.2777099609375000,
0.3958129882812500,
0.4378662109375000,
0.5380554199218750,
0.6918029785156250,
0.7573547363281250,
0.8391418457031250,
0.0506286621093750,
0.0989990234375000,
0.2041625976562500,
0.3028259277343750,
0.4041748046875000,
0.4882812500000000,
0.5975036621093750,
0.6936645507812500,
0.7970886230468750,
0.8778991699218750,
0.0645751953125000,
0.0878906250000000,
0.1513366699218750,
0.3260192871093750,
0.4970703125000000,
0.5724792480468750,
0.6694335937500000,
0.7407531738281250,
0.8269653320312500,
0.8875122070312500,
0.0495300292968750,
0.0910034179687500,
0.2160339355468750,
0.3251647949218750,
0.4279174804687500,
0.5231628417968750,
0.6246948242187500,
0.7122802734375000,
0.8130187988281250,
0.8856506347656250,
0.0901489257812500,
0.1238098144531250,
0.1722717285156250,
0.2864685058593750,
0.4636535644531250,
0.5174255371093750,
0.5963134765625000,
0.6828613281250000,
0.7555847167968750,
0.8432312011718750,
0.0558166503906250,
0.0787048339843750,
0.1266174316406250,
0.2776184082031250,
0.4269104003906250,
0.4996948242187500,
0.6014099121093750,
0.6877746582031250,
0.8061218261718750,
0.8913574218750000,
0.0730895996093750,
0.1044921875000000,
0.1548461914062500,
0.2561645507812500,
0.4644470214843750,
0.5688171386718750,
0.6311645507812500,
0.7003479003906250,
0.7725219726562500,
0.8441162109375000,
0.0657653808593750,
0.0864257812500000,
0.1371765136718750,
0.2373046875000000,
0.4246215820312500,
0.5692749023437500,
0.6737670898437500,
0.7325439453125000,
0.8193664550781250,
0.8750305175781250,
0.0870666503906250,
0.1486206054687500,
0.2189025878906250,
0.3156433105468750,
0.3733215332031250,
0.4530639648437500,
0.5997619628906250,
0.6799316406250000,
0.8077392578125000,
0.8780822753906250,
0.0900878906250000,
0.1297607421875000,
0.1998291015625000,
0.2713623046875000,
0.3329162597656250,
0.5095520019531250,
0.5959777832031250,
0.6666870117187500,
0.7687683105468750,
0.8414611816406250,
0.0744018554687500,
0.1048889160156250,
0.1640014648437500,
0.2306213378906250,
0.2880859375000000,
0.4592285156250000,
0.5824279785156250,
0.6824035644531250,
0.8038330078125000,
0.8857116699218750,
0.0837707519531250,
0.1141357421875000,
0.1790771484375000,
0.2451171875000000,
0.3142700195312500,
0.5165710449218750,
0.6453247070312500,
0.7137145996093750,
0.8180541992187500,
0.8677673339843750,
0.0675048828125000,
0.0992736816406250,
0.1647033691406250,
0.2756042480468750,
0.4098815917968750,
0.4874267578125000,
0.5801086425781250,
0.6282653808593750,
0.7396850585937500,
0.8704833984375000,
0.0710144042968750,
0.1058654785156250,
0.1594238281250000,
0.2368774414062500,
0.4136962890625000,
0.4685668945312500,
0.5585632324218750,
0.6850585937500000,
0.7695922851562500,
0.8654785156250000,
0.0645141601562500,
0.0953979492187500,
0.1503295898437500,
0.2823791503906250,
0.3591918945312500,
0.4326171875000000,
0.5827026367187500,
0.6682128906250000,
0.7887878417968750,
0.8843994140625000,
0.0572814941406250,
0.0796508789062500,
0.1312255859375000,
0.2247009277343750,
0.3767700195312500,
0.4922180175781250,
0.6035461425781250,
0.6923828125000000,
0.7940368652343750,
0.8927917480468750
};


  /*****************************************************************************
   *
   * modified lsp - table 2st stage (with prediction)
   *
   * 16 bits signed; scale_factor 8; 
   * quantized with: fixed_value = (original_value * 2^15 * scale factor +- 0.5)
   *                 float_value = fixed_value / (scale_factor * 2^15)
   * 09.09.98 Christian Mittendorf, Robert Bosch GmbH Germany
   *
   *****************************************************************************/

static float pd_tbl[5*64+5*16] =
{
0.0113716125488281F,
0.0075302124023438F,
0.0140113830566406F,
0.0079307556152344F,
0.0120315551757812F,
0.0017814636230469F,
0.0044898986816406F,
0.0100097656250000F,
0.0164604187011719F,
-0.0113296508789062F,
0.0274810791015625F,
-0.0089683532714844F,
-0.0008583068847656F,
0.0097198486328125F,
0.0068397521972656F,
0.0120201110839844F,
0.0057182312011719F,
0.0063095092773438F,
0.0290908813476562F,
0.0341415405273438F,
0.0056304931640625F,
0.0105018615722656F,
-0.0099716186523438F,
0.0194396972656250F,
0.0160293579101562F,
0.0080909729003906F,
0.0158615112304688F,
0.0192794799804688F,
-0.0177383422851562F,
-0.0160217285156250F,
0.0140686035156250F,
0.0196495056152344F,
0.0022506713867188F,
0.0285186767578125F,
-0.0160408020019531F,
-0.0016593933105469F,
0.0042381286621094F,
0.0038185119628906F,
-0.0009803771972656F,
0.0134391784667969F,
0.0007591247558594F,
0.0074691772460938F,
-0.0109291076660156F,
-0.0071105957031250F,
0.0173606872558594F,
-0.0100898742675781F,
-0.0148010253906250F,
0.0067405700683594F,
0.0237388610839844F,
0.0114212036132812F,
0.0087089538574219F,
0.0209388732910156F,
0.0166206359863281F,
0.0015716552734375F,
-0.0269088745117188F,
-0.0039100646972656F,
0.0025482177734375F,
-0.0006904602050781F,
0.0174713134765625F,
0.0027198791503906F,
0.0019302368164062F,
-0.0015296936035156F,
-0.0137214660644531F,
0.0339889526367188F,
0.0374717712402344F,
-0.0051803588867188F,
-0.0014801025390625F,
0.0023803710937500F,
0.0132713317871094F,
0.0224189758300781F,
-0.0019111633300781F,
-0.0033798217773438F,
-0.0019302368164062F,
0.0392990112304688F,
0.0152893066406250F,
-0.0182304382324219F,
0.0140113830566406F,
0.0023307800292969F,
0.0122108459472656F,
0.0120887756347656F,
0.0075492858886719F,
0.0136909484863281F,
0.0029716491699219F,
0.0053710937500000F,
0.0288581848144531F,
0.0081214904785156F,
0.0237884521484375F,
0.0090904235839844F,
0.0198898315429688F,
0.0064392089843750F,
0.0227203369140625F,
0.0421409606933594F,
-0.0095214843750000F,
0.0063781738281250F,
-0.0066184997558594F,
0.0075111389160156F,
0.0058097839355469F,
0.0072784423828125F,
0.0291709899902344F,
0.0056190490722656F,
0.0211715698242188F,
0.0354194641113281F,
0.0286293029785156F,
0.0245513916015625F,
0.0219001770019531F,
0.0242500305175781F,
0.0533905029296875F,
0.0242195129394531F,
-0.0079193115234375F,
-0.0089302062988281F,
0.0298004150390625F,
0.0172691345214844F,
0.0050582885742188F,
0.0243606567382812F,
0.0084190368652344F,
0.0137100219726562F,
0.0188293457031250F,
-0.0112113952636719F,
0.0058097839355469F,
0.0010986328125000F,
0.0028800964355469F,
0.0062904357910156F,
0.0136413574218750F,
-0.0046195983886719F,
-0.0015296936035156F,
-0.0009117126464844F,
-0.0052986145019531F,
-0.0083198547363281F,
0.0029182434082031F,
0.0301017761230469F,
0.0061683654785156F,
0.0032501220703125F,
0.0145683288574219F,
0.0586814880371094F,
0.0003509521484375F,
0.0030212402343750F,
-0.0048103332519531F,
0.0093688964843750F,
0.0136718750000000F,
0.0041885375976562F,
0.0060081481933594F,
0.0043792724609375F,
0.0151786804199219F,
0.0274581909179688F,
-0.0309982299804688F,
0.0079002380371094F,
0.0046310424804688F,
-0.0021896362304688F,
0.0041389465332031F,
0.0011711120605469F,
0.0129585266113281F,
0.0019111633300781F,
0.0171394348144531F,
0.0043182373046875F,
-0.0126190185546875F,
-0.0032196044921875F,
0.0030288696289062F,
0.0257606506347656F,
0.0329017639160156F,
-0.0060806274414062F,
0.0016784667968750F,
-0.0069885253906250F,
0.0135612487792969F,
-0.0067787170410156F,
0.0093803405761719F,
0.0030403137207031F,
-0.0043792724609375F,
-0.0035705566406250F,
0.0059013366699219F,
0.0132789611816406F,
0.0126991271972656F,
0.0018196105957031F,
-0.0081787109375000F,
0.0202484130859375F,
-0.0101699829101562F,
0.0005683898925781F,
-0.0161895751953125F,
0.0307502746582031F,
0.0133209228515625F,
0.0028190612792969F,
0.0032615661621094F,
0.0094795227050781F,
0.0301017761230469F,
-0.0264892578125000F,
0.0015411376953125F,
0.0158691406250000F,
0.0234184265136719F,
-0.0183181762695312F,
-0.0195388793945312F,
0.0133514404296875F,
0.0024299621582031F,
0.0065307617187500F,
0.0257797241210938F,
0.0292701721191406F,
0.0181884765625000F,
-0.0002403259277344F,
-0.0105209350585938F,
0.0066795349121094F,
0.0323486328125000F,
-0.0088882446289062F,
-0.0100898742675781F,
-0.0142707824707031F,
0.0104904174804688F,
-0.0008583068847656F,
0.0291786193847656F,
-0.0077095031738281F,
-0.0156707763671875F,
0.0239791870117188F,
0.0448989868164062F,
0.0270309448242188F,
-0.0000305175781250F,
0.0149002075195312F,
0.0050010681152344F,
0.0060386657714844F,