[FFmpeg-soc] [soc]: r2281 - in aac: aac.c aactab.h
superdump
subversion at mplayerhq.hu
Sat May 31 12:57:31 CEST 2008
Author: superdump
Date: Sat May 31 12:57:31 2008
New Revision: 2281
Log:
Allow use of hardcoded or runtime generated tables for pow2sf and ivquant
Modified:
aac/aac.c
aac/aactab.h
Modified: aac/aac.c
==============================================================================
--- aac/aac.c (original)
+++ aac/aac.c Sat May 31 12:57:31 2008
@@ -56,7 +56,10 @@
#define MAX_CHANNELS 64
#define MAX_TAGID 16
-#define IVQUANT_SIZE 1024
+#ifndef CONFIG_HARDCODED_TABLES
+ static float ivquant_tab[IVQUANT_SIZE];
+ static float pow2sf_tab[316];
+#endif /* CONFIG_HARDCODED_TABLES */
/**
* Audio Object Types
@@ -366,8 +369,6 @@ typedef struct {
DECLARE_ALIGNED_16(float, kbd_short_128[128]);
DECLARE_ALIGNED_16(float, sine_long_1024[1024]);
DECLARE_ALIGNED_16(float, sine_short_128[128]);
- DECLARE_ALIGNED_16(float, pow2sf_tab[316]);
- DECLARE_ALIGNED_16(float, ivquant_tab[IVQUANT_SIZE]);
MDCTContext mdct;
MDCTContext mdct_small;
MDCTContext *mdct_ltp;
@@ -890,8 +891,6 @@ static int aac_decode_init(AVCodecContex
// -1024 - compensate wrong IMDCT method
// 32768 - values in AAC build for ready float->int 16 bit audio, using
// BIAS method instead needs values -1<x<1
- for (i = 1 - IVQUANT_SIZE/2; i < IVQUANT_SIZE/2; i++)
- ac->ivquant_tab[i + IVQUANT_SIZE/2 - 1] = cbrt(fabs(i)) * i;
if(ac->dsp.float_to_int16 == ff_float_to_int16_c) {
ac->add_bias = 385.0f;
@@ -902,12 +901,13 @@ static int aac_decode_init(AVCodecContex
ac->sf_scale = 1. / -1024.;
ac->sf_offset = 60;
}
- /* [ 0, 255] scale factor decoding when using C dsp.float_to_int16
- * [60, 315] scale factor decoding when using SIMD dsp.float_to_int16
- * [45, 300] intensity stereo position decoding mapped in reverse order i.e. 0->300, 1->299, ..., 254->46, 255->45
- */
+
+#ifndef CONFIG_HARDCODED_TABLES
+ for (i = 1 - IVQUANT_SIZE/2; i < IVQUANT_SIZE/2; i++)
+ ivquant_tab[i + IVQUANT_SIZE/2 - 1] = cbrt(fabs(i)) * i;
for (i = 0; i < 316; i++)
- ac->pow2sf_tab[i] = pow(2, (i - 200)/4.);
+ pow2sf_tab[i] = pow(2, (i - 200)/4.);
+#endif /* CONFIG_HARDCODED_TABLES */
if(init_vlc(&ac->mainvlc, 7, sizeof(code)/sizeof(code[0]),
bits, sizeof(bits[0]), sizeof(bits[0]),
@@ -1042,7 +1042,7 @@ static int decode_ics_info(AACContext *
static inline float ivquant(AACContext * ac, int a) {
if (a + (unsigned int)IVQUANT_SIZE/2 - 1 < (unsigned int)IVQUANT_SIZE - 1)
- return ac->ivquant_tab[a + IVQUANT_SIZE/2 - 1];
+ return ivquant_tab[a + IVQUANT_SIZE/2 - 1];
else
return cbrtf(fabsf(a)) * a;
}
@@ -1105,9 +1105,9 @@ static int decode_scale_factor_data(AACC
return -1;
}
if(index == 2)
- sf[g][i] = ac->pow2sf_tab[-offset[index] + 300];
+ sf[g][i] = pow2sf_tab[-offset[index] + 300];
else
- sf[g][i] = -ac->pow2sf_tab[ offset[index] + ac->sf_offset];
+ sf[g][i] = -pow2sf_tab[ offset[index] + ac->sf_offset];
sf[g][i] *= mix_gain;
}
}
Modified: aac/aactab.h
==============================================================================
--- aac/aactab.h (original)
+++ aac/aactab.h Sat May 31 12:57:31 2008
@@ -573,4 +573,355 @@ static const uint8_t bits11[289] = {
5,
};
+#define IVQUANT_SIZE 1024
+
+#ifdef CONFIG_HARDCODED_TABLES
+
+static const float ivquant_tab[IVQUANT_SIZE] = {
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+ 2308.1231559, 2317.3695127, 2326.6251019, 2335.8899054,
+ 2345.1639046, 2354.4470815, 2363.7394180, 2373.0408959,
+ 2382.3514975, 2391.6712048, 2401.0000000, 2410.3378655,
+ 2419.6847838, 2429.0407373, 2438.4057086, 2447.7796803,
+ 2457.1626352, 2466.5545562, 2475.9554262, 2485.3652281,
+ 2494.7839450, 2504.2115601, 2513.6480566, 2523.0934179,
+ 2532.5476273, 2542.0106682, 2551.4825244, 2560.9631792,
+ 2570.4526166, 2579.9508201, 2589.4577738, 2598.9734614,
+ 2608.4978671, 2618.0309748, 2627.5727687, 2637.1232331,
+ 2646.6823521, 2656.2501103, 2665.8264919, 2675.4114815,
+ 2685.0050637, 2694.6072231, 2704.2179443, 2713.8372123,
+ 2723.4650117, 2733.1013276, 2742.7461448, 2752.3994485,
+ 2762.0612237, 2771.7314556, 2781.4101295, 2791.0972306,
+ 2800.7927443, 2810.4966560, 2820.2089512, 2829.9296156,
+ 2839.6586345, 2849.3959939, 2859.1416793, 2868.8956767,
+ 2878.6579717, 2888.4285505, 2898.2073989, 2907.9945030,
+ 2917.7898488, 2927.5934226, 2937.4052106, 2947.2251989,
+ 2957.0533740, 2966.8897222, 2976.7342300, 2986.5868839,
+ 2996.4476703, 3006.3165760, 3016.1935876, 3026.0786917,
+ 3035.9718753, 3045.8731250, 3055.7824278, 3065.6997706,
+ 3075.6251404, 3085.5585243, 3095.4999092, 3105.4492825,
+ 3115.4066312, 3125.3719425, 3135.3452039, 3145.3264026,
+ 3155.3155261, 3165.3125617, 3175.3174970, 3185.3303196,
+ 3195.3510169, 3205.3795768, 3215.4159867, 3225.4602346,
+ 3235.5123081, 3245.5721951, 3255.6398836, 3265.7153613,
+ 3275.7986164, 3285.8896367, 3295.9884105, 3306.0949257,
+ 3316.2091706, 3326.3311334, 3336.4608022, 3346.5981655,
+ 3356.7432115, 3366.8959286, 3377.0563052, 3387.2243299,
+ 3397.3999911, 3407.5832773, 3417.7741773, 3427.9726795,
+ 3438.1787728, 3448.3924458, 3458.6136872, 3468.8424860,
+ 3479.0788309, 3489.3227109, 3499.5741148, 3509.8330317,
+ 3520.0994506, 3530.3733604, 3540.6547503, 3550.9436095,
+ 3561.2399271, 3571.5436923, 3581.8548943, 3592.1735225,
+ 3602.4995662, 3612.8330147, 3623.1738574, 3633.5220839,
+ 3643.8776835, 3654.2406458, 3664.6109603, 3674.9886166,
+ 3685.3736044, 3695.7659132, 3706.1655329, 3716.5724532,
+ 3726.9866637, 3737.4081544, 3747.8369150, 3758.2729355,
+ 3768.7162058, 3779.1667157, 3789.6244554, 3800.0894147,
+ 3810.5615838, 3821.0409528, 3831.5275117, 3842.0212507,
+ 3852.5221601, 3863.0302299, 3873.5454506, 3884.0678123,
+ 3894.5973054, 3905.1339203, 3915.6776473, 3926.2284768,
+ 3936.7863993, 3947.3514054, 3957.9234854, 3968.5026299,
+ 3979.0888296, 3989.6820750, 4000.2823568, 4010.8896656,
+ 4021.5039921, 4032.1253271, 4042.7536614, 4053.3889857,
+ 4064.0312908, 4074.6805676, 4085.3368071, 4096.0000000,
+};
+
+/* [ 0, 255] scale factor decoding when using C dsp.float_to_int16
+ * [60, 315] scale factor decoding when using SIMD dsp.float_to_int16
+ * [45, 300] intensity stereo position decoding mapped in reverse order i.e. 0->300, 1->299, ..., 254->46, 255->45
+ */
+static const float pow2sf_tab[316] = {
+ 8.88178420e-16, 1.05622810e-15, 1.25607397e-15, 1.49373210e-15,
+ 1.77635684e-15, 2.11245619e-15, 2.51214793e-15, 2.98746420e-15,
+ 3.55271368e-15, 4.22491238e-15, 5.02429587e-15, 5.97492839e-15,
+ 7.10542736e-15, 8.44982477e-15, 1.00485917e-14, 1.19498568e-14,
+ 1.42108547e-14, 1.68996495e-14, 2.00971835e-14, 2.38997136e-14,
+ 2.84217094e-14, 3.37992991e-14, 4.01943669e-14, 4.77994272e-14,
+ 5.68434189e-14, 6.75985982e-14, 8.03887339e-14, 9.55988543e-14,
+ 1.13686838e-13, 1.35197196e-13, 1.60777468e-13, 1.91197709e-13,
+ 2.27373675e-13, 2.70394393e-13, 3.21554936e-13, 3.82395417e-13,
+ 4.54747351e-13, 5.40788785e-13, 6.43109871e-13, 7.64790834e-13,
+ 9.09494702e-13, 1.08157757e-12, 1.28621974e-12, 1.52958167e-12,
+ 1.81898940e-12, 2.16315514e-12, 2.57243948e-12, 3.05916334e-12,
+ 3.63797881e-12, 4.32631028e-12, 5.14487897e-12, 6.11832668e-12,
+ 7.27595761e-12, 8.65262056e-12, 1.02897579e-11, 1.22366534e-11,
+ 1.45519152e-11, 1.73052411e-11, 2.05795159e-11, 2.44733067e-11,
+ 2.91038305e-11, 3.46104823e-11, 4.11590317e-11, 4.89466134e-11,
+ 5.82076609e-11, 6.92209645e-11, 8.23180635e-11, 9.78932268e-11,
+ 1.16415322e-10, 1.38441929e-10, 1.64636127e-10, 1.95786454e-10,
+ 2.32830644e-10, 2.76883858e-10, 3.29272254e-10, 3.91572907e-10,
+ 4.65661287e-10, 5.53767716e-10, 6.58544508e-10, 7.83145814e-10,
+ 9.31322575e-10, 1.10753543e-09, 1.31708902e-09, 1.56629163e-09,
+ 1.86264515e-09, 2.21507086e-09, 2.63417803e-09, 3.13258326e-09,
+ 3.72529030e-09, 4.43014173e-09, 5.26835606e-09, 6.26516652e-09,
+ 7.45058060e-09, 8.86028346e-09, 1.05367121e-08, 1.25303330e-08,
+ 1.49011612e-08, 1.77205669e-08, 2.10734243e-08, 2.50606661e-08,
+ 2.98023224e-08, 3.54411338e-08, 4.21468485e-08, 5.01213321e-08,
+ 5.96046448e-08, 7.08822677e-08, 8.42936970e-08, 1.00242664e-07,
+ 1.19209290e-07, 1.41764535e-07, 1.68587394e-07, 2.00485328e-07,
+ 2.38418579e-07, 2.83529071e-07, 3.37174788e-07, 4.00970657e-07,
+ 4.76837158e-07, 5.67058141e-07, 6.74349576e-07, 8.01941314e-07,
+ 9.53674316e-07, 1.13411628e-06, 1.34869915e-06, 1.60388263e-06,
+ 1.90734863e-06, 2.26823256e-06, 2.69739830e-06, 3.20776526e-06,
+ 3.81469727e-06, 4.53646513e-06, 5.39479661e-06, 6.41553051e-06,
+ 7.62939453e-06, 9.07293026e-06, 1.07895932e-05, 1.28310610e-05,
+ 1.52587891e-05, 1.81458605e-05, 2.15791864e-05, 2.56621220e-05,
+ 3.05175781e-05, 3.62917210e-05, 4.31583729e-05, 5.13242441e-05,
+ 6.10351562e-05, 7.25834421e-05, 8.63167458e-05, 1.02648488e-04,
+ 1.22070312e-04, 1.45166884e-04, 1.72633492e-04, 2.05296976e-04,
+ 2.44140625e-04, 2.90333768e-04, 3.45266983e-04, 4.10593953e-04,
+ 4.88281250e-04, 5.80667537e-04, 6.90533966e-04, 8.21187906e-04,
+ 9.76562500e-04, 1.16133507e-03, 1.38106793e-03, 1.64237581e-03,
+ 1.95312500e-03, 2.32267015e-03, 2.76213586e-03, 3.28475162e-03,
+ 3.90625000e-03, 4.64534029e-03, 5.52427173e-03, 6.56950324e-03,
+ 7.81250000e-03, 9.29068059e-03, 1.10485435e-02, 1.31390065e-02,
+ 1.56250000e-02, 1.85813612e-02, 2.20970869e-02, 2.62780130e-02,
+ 3.12500000e-02, 3.71627223e-02, 4.41941738e-02, 5.25560260e-02,
+ 6.25000000e-02, 7.43254447e-02, 8.83883476e-02, 1.05112052e-01,
+ 1.25000000e-01, 1.48650889e-01, 1.76776695e-01, 2.10224104e-01,
+ 2.50000000e-01, 2.97301779e-01, 3.53553391e-01, 4.20448208e-01,
+ 5.00000000e-01, 5.94603558e-01, 7.07106781e-01, 8.40896415e-01,
+ 1.00000000e+00, 1.18920712e+00, 1.41421356e+00, 1.68179283e+00,
+ 2.00000000e+00, 2.37841423e+00, 2.82842712e+00, 3.36358566e+00,
+ 4.00000000e+00, 4.75682846e+00, 5.65685425e+00, 6.72717132e+00,
+ 8.00000000e+00, 9.51365692e+00, 1.13137085e+01, 1.34543426e+01,
+ 1.60000000e+01, 1.90273138e+01, 2.26274170e+01, 2.69086853e+01,
+ 3.20000000e+01, 3.80546277e+01, 4.52548340e+01, 5.38173706e+01,
+ 6.40000000e+01, 7.61092554e+01, 9.05096680e+01, 1.07634741e+02,
+ 1.28000000e+02, 1.52218511e+02, 1.81019336e+02, 2.15269482e+02,
+ 2.56000000e+02, 3.04437021e+02, 3.62038672e+02, 4.30538965e+02,
+ 5.12000000e+02, 6.08874043e+02, 7.24077344e+02, 8.61077929e+02,
+ 1.02400000e+03, 1.21774809e+03, 1.44815469e+03, 1.72215586e+03,
+ 2.04800000e+03, 2.43549617e+03, 2.89630938e+03, 3.44431172e+03,
+ 4.09600000e+03, 4.87099234e+03, 5.79261875e+03, 6.88862343e+03,
+ 8.19200000e+03, 9.74198469e+03, 1.15852375e+04, 1.37772469e+04,
+ 1.63840000e+04, 1.94839694e+04, 2.31704750e+04, 2.75544937e+04,
+ 3.27680000e+04, 3.89679387e+04, 4.63409500e+04, 5.51089875e+04,
+ 6.55360000e+04, 7.79358775e+04, 9.26819000e+04, 1.10217975e+05,
+ 1.31072000e+05, 1.55871755e+05, 1.85363800e+05, 2.20435950e+05,
+ 2.62144000e+05, 3.11743510e+05, 3.70727600e+05, 4.40871900e+05,
+ 5.24288000e+05, 6.23487020e+05, 7.41455200e+05, 8.81743800e+05,
+ 1.04857600e+06, 1.24697404e+06, 1.48291040e+06, 1.76348760e+06,
+ 2.09715200e+06, 2.49394808e+06, 2.96582080e+06, 3.52697520e+06,
+ 4.19430400e+06, 4.98789616e+06, 5.93164160e+06, 7.05395040e+06,
+ 8.38860800e+06, 9.97579232e+06, 1.18632832e+07, 1.41079008e+07,
+ 1.67772160e+07, 1.99515846e+07, 2.37265664e+07, 2.82158016e+07,
+ 3.35544320e+07, 3.99031693e+07, 4.74531328e+07, 5.64316032e+07,
+ 6.71088640e+07, 7.98063385e+07, 9.49062656e+07, 1.12863206e+08,
+ 1.34217728e+08, 1.59612677e+08, 1.89812531e+08, 2.25726413e+08,
+ 2.68435456e+08, 3.19225354e+08, 3.79625062e+08, 4.51452825e+08,
+};
+
+#endif /* CONFIG_HARDCODED_TABLES */
+
#endif /* FFMPEG_AACTAB_H */
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