input3a.h

用dsp解压mp3程序的算法

#define NX 300
#define NBIQ 3


DATA x[NX] ={
2829,
26718,
15368,
-16120,
-27263,
1758,
25233,
11236,
-11726,
-26601,
4614,
23475,
16477,
-18517,
-27236,
2248,
26370,
15446,
-16085,
-30742,
2334,
27230,
19055,
-13530,
-22059,
-1352,
22088,
19007,
-13718,
-17064,
-1356,
30224,
19508,
-18345,
-25769,
-2951,
23703,
13954,
-14232,
-22335,
-331,
25566,
17551,
-14683,
-26909,
4329,
23042,
15992,
-11329,
-26319,
-499,
29574,
14351,
-17521,
-26485,
-990,
25087,
16931,
-18412,
-26600,
254,
22595,
19838,
-13656,
-29498,
-4347,
24802,
10712,
-14275,
-28318,
-1417,
26289,
18088,
-10121,
-27341,
979,
26495,
15681,
-12587,
-19107,
1661,
28414,
10621,
-15319,
-24635,
1168,
28243,
15475,
-19921,
-25008,
-907,
23290,
15258,
-15503,
-24647,
-1550,
25855,
16813,
-11960,
-26796,
1746,
25023,
16062,
-19048,
-26921,
4066,
24792,
11880,
-20738,
-29192,
-2246,
22567,
16179,
-15760,
-24260,
-1377,
22358,
16588,
-17342,
-22374,
1467,
27282,
14857,
-12423,
-30588,
-1860,
32188,
8965,
-13162,
-29344,
-2189,
26129,
11277,
-14936,
-24647,
-4400,
23628,
19613,
-17154,
-29307,
4409,
25624,
15417,
-19564,
-22284,
3439,
25821,
15038,
-12846,
-25159,
1028,
25057,
14884,
-15656,
-21409,
2735,
28434,
16385,
-13663,
-20294,
-3047,
28182,
17189,
-12709,
-24390,
-958,
28208,
18021,
-16999,
-23653,
-1746,
24137,
18835,
-16551,
-22415,
-430,
25787,
17057,
-17874,
-30014,
4400,
27699,
18400,
-11649,
-28727,
3363,
21342,
17225,
-18172,
-21666,
-1790,
26297,
11152,
-9290,
-22482,
25,
25888,
11011,
-20332,
-25294,
2381,
29321,
15365,
-13107,
-25220,
1030,
22254,
16470,
-17774,
-25898,
2583,
22215,
19582,
-23394,
-31564,
-2300,
22879,
16118,
-11677,
-32768,
3254,
23248,
16731,
-20871,
-20965,
-5699,
26150,
12593,
-14692,
-25969,
-2645,
25788,
20341,
-10629,
-27987,
-1978,
29956,
18435,
-14879,
-19373,
145,
30828,
21889,
-12200,
-26222,
1829,
29184,
13864,
-13613,
-24123,
1389,
24265,
18351,
-15753,
-17270,
-2034,
25956,
16058,
-13317,
-25087,
-296,
29765,
18341,
-18700,
-25321,
5396,
24895,
14067,
-18615,
-22496,
-1406,
26913,
18748,
-20845,
-22216,
2228,
25766,
17828,
-11006,
-23752,
1763,
22697,
15140,
-15266,
-28267,
-2834,
25538,
15706,
-16045,
-22537,
-2503,
26809,
14924,
-15680,
-21292,
2989,
27092,
14785,
-15402,
-23350,
};

#pragma DATA_SECTION (h,".coeffs")
LDATA h[5*NBIQ] ={ /* C54x: b2 b1 b0 a2 a1/2  ... */
/*in Q.31 format */

/*1st biquad */
-2147483648,
0,
2147483647,
2010478817,
-1287421496/2,
/*2nd biquad */
2147483647,
-591587519,
2147483647,
2085976704,
-1058930944/2,
/*3rd biquad */ 
2147483647,
-1990336768,
2147483647,
2088351744,
-1553674240/2,
};



#pragma DATA_SECTION (dbuffer,".dbuffer")
LDATA dbuffer[3*NBIQ];
LDATA *dp = dbuffer;

DATA r[NX];