sbr_dct.c

wince下著名的视频播放器源码

    f99 = f68 + f80;
    f100 = f75 - f87;
    f101 = f75 + f87;
    f102 = f74 - f86;
    f103 = f74 + f86;
    f104 = f88 + f90;
    f105 = MUL_C(COEF_CONST(1.3065629648763766), f88);
    f106 = MUL_F(FRAC_CONST(-0.9238795325112866), f104);
    f107 = MUL_F(FRAC_CONST(-0.5411961001461967), f90);
    f108 = f105 + f106;
    f109 = f107 - f106;
    f110 = f92 + f94;
    f111 = MUL_F(FRAC_CONST(0.5411961001461969), f92);
    f112 = MUL_F(FRAC_CONST(0.3826834323650898), f110);
    f113 = MUL_C(COEF_CONST(1.3065629648763766), f94);
    f114 = f111 + f112;
    f115 = f113 - f112;
    f116 = f96 + f98;
    f117 = MUL_C(COEF_CONST(1.3065629648763766), f96);
    f118 = MUL_F(FRAC_CONST(-0.9238795325112866), f116);
    f119 = MUL_F(FRAC_CONST(-0.5411961001461967), f98);
    f120 = f117 + f118;
    f121 = f119 - f118;
    f122 = f100 + f102;
    f123 = MUL_F(FRAC_CONST(0.5411961001461969), f100);
    f124 = MUL_F(FRAC_CONST(0.3826834323650898), f122);
    f125 = MUL_C(COEF_CONST(1.3065629648763766), f102);
    f126 = f123 + f124;
    f127 = f125 - f124;
    f128 = f89 - f93;
    y[0] = f89 + f93;
    f130 = f91 - f95;
    y[15] = f91 + f95;
    f132 = f109 - f115;
    y[3] = f109 + f115;
    f134 = f108 - f114;
    y[12] = f108 + f114;
    f136 = f97 - f101;
    y[1] = f97 + f101;
    f138 = f99 - f103;
    y[14] = f99 + f103;
    f140 = f121 - f127;
    y[2] = f121 + f127;
    f142 = f120 - f126;
    y[13] = f120 + f126;
    f144 = f128 - f130;
    f145 = f128 + f130;
    y[8] = MUL_F(FRAC_CONST(0.7071067811865474), f144);
    y[7] = MUL_F(FRAC_CONST(0.7071067811865474), f145);
    f148 = f132 - f134;
    f149 = f132 + f134;
    y[11] = MUL_F(FRAC_CONST(0.7071067811865474), f148);
    y[4] = MUL_F(FRAC_CONST(0.7071067811865474), f149);
    f152 = f136 - f138;
    f153 = f136 + f138;
    y[9] = MUL_F(FRAC_CONST(0.7071067811865474), f152);
    y[6] = MUL_F(FRAC_CONST(0.7071067811865474), f153);
    f156 = f140 - f142;
    f157 = f140 + f142;
    y[10] = MUL_F(FRAC_CONST(0.7071067811865474), f156);
    y[5] = MUL_F(FRAC_CONST(0.7071067811865474), f157);
}

void DCT3_32_unscaled(real_t *y, real_t *x)
{
    real_t f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10;
    real_t f11, f12, f13, f14, f15, f16, f17, f18, f19, f20;
    real_t f21, f22, f23, f24, f25, f26, f27, f28, f29, f30;
    real_t f31, f32, f33, f34, f35, f36, f37, f38, f39, f40;
    real_t f41, f42, f43, f44, f45, f46, f47, f48, f49, f50;
    real_t f51, f52, f53, f54, f55, f56, f57, f58, f59, f60;
    real_t f61, f62, f63, f64, f65, f66, f67, f68, f69, f70;
    real_t f71, f72, f73, f74, f75, f76, f77, f78, f79, f80;
    real_t f81, f82, f83, f84, f85, f86, f87, f88, f89, f90;
    real_t f91, f92, f93, f94, f95, f96, f97, f98, f99, f100;
    real_t f101, f102, f103, f104, f105, f106, f107, f108, f109, f110;
    real_t f111, f112, f113, f114, f115, f116, f117, f118, f119, f120;
    real_t f121, f122, f123, f124, f125, f126, f127, f128, f129, f130;
    real_t f131, f132, f133, f134, f135, f136, f137, f138, f139, f140;
    real_t f141, f142, f143, f144, f145, f146, f147, f148, f149, f150;
    real_t f151, f152, f153, f154, f155, f156, f157, f158, f159, f160;
    real_t f161, f162, f163, f164, f165, f166, f167, f168, f169, f170;
    real_t f171, f172, f173, f174, f175, f176, f177, f178, f179, f180;
    real_t f181, f182, f183, f184, f185, f186, f187, f188, f189, f190;
    real_t f191, f192, f193, f194, f195, f196, f197, f198, f199, f200;
    real_t f201, f202, f203, f204, f205, f206, f207, f208, f209, f210;
    real_t f211, f212, f213, f214, f215, f216, f217, f218, f219, f220;
    real_t f221, f222, f223, f224, f225, f226, f227, f228, f229, f230;
    real_t f231, f232, f233, f234, f235, f236, f237, f238, f239, f240;
    real_t f241, f242, f243, f244, f245, f246, f247, f248, f249, f250;
    real_t f251, f252, f253, f254, f255, f256, f257, f258, f259, f260;
    real_t f261, f262, f263, f264, f265, f266, f267, f268, f269, f270;
    real_t f271, f272;

    f0 = MUL_F(x[16], FRAC_CONST(0.7071067811865476));
    f1 = x[0] - f0;
    f2 = x[0] + f0;
    f3 = x[8] + x[24];
    f4 = MUL_C(x[8], COEF_CONST(1.3065629648763766));
    f5 = MUL_F(f3, FRAC_CONST((-0.9238795325112866)));
    f6 = MUL_F(x[24], FRAC_CONST((-0.5411961001461967)));
    f7 = f4 + f5;
    f8 = f6 - f5;
    f9 = f2 - f8;
    f10 = f2 + f8;
    f11 = f1 - f7;
    f12 = f1 + f7;
    f13 = x[4] + x[28];
    f14 = MUL_C(x[4], COEF_CONST(1.1758756024193588));
    f15 = MUL_F(f13, FRAC_CONST((-0.9807852804032304)));
    f16 = MUL_F(x[28], FRAC_CONST((-0.7856949583871021)));
    f17 = f14 + f15;
    f18 = f16 - f15;
    f19 = x[12] + x[20];
    f20 = MUL_C(x[12], COEF_CONST(1.3870398453221473));
    f21 = MUL_F(f19, FRAC_CONST((-0.8314696123025455)));
    f22 = MUL_F(x[20], FRAC_CONST((-0.2758993792829436)));
    f23 = f20 + f21;
    f24 = f22 - f21;
    f25 = f18 - f24;
    f26 = f18 + f24;
    f27 = MUL_F(f25, FRAC_CONST(0.7071067811865476));
    f28 = f17 - f23;
    f29 = f17 + f23;
    f30 = MUL_F(f29, FRAC_CONST(0.7071067811865476));
    f31 = f27 - f30;
    f32 = f27 + f30;
    f33 = f10 - f26;
    f34 = f10 + f26;
    f35 = f12 - f32;
    f36 = f12 + f32;
    f37 = f11 - f31;
    f38 = f11 + f31;
    f39 = f9 - f28;
    f40 = f9 + f28;
    f41 = x[2] + x[30];
    f42 = MUL_C(x[2], COEF_CONST(1.0932018670017569));
    f43 = MUL_F(f41, FRAC_CONST((-0.9951847266721969)));
    f44 = MUL_F(x[30], FRAC_CONST((-0.8971675863426368)));
    f45 = f42 + f43;
    f46 = f44 - f43;
    f47 = x[6] + x[26];
    f48 = MUL_C(x[6], COEF_CONST(1.2472250129866711));
    f49 = MUL_F(f47, FRAC_CONST((-0.9569403357322089)));
    f50 = MUL_F(x[26], FRAC_CONST((-0.6666556584777469)));
    f51 = f48 + f49;
    f52 = f50 - f49;
    f53 = x[10] + x[22];
    f54 = MUL_C(x[10], COEF_CONST(1.3533180011743526));
    f55 = MUL_F(f53, FRAC_CONST((-0.8819212643483551)));
    f56 = MUL_F(x[22], FRAC_CONST((-0.4105245275223575)));
    f57 = f54 + f55;
    f58 = f56 - f55;
    f59 = x[14] + x[18];
    f60 = MUL_C(x[14], COEF_CONST(1.4074037375263826));
    f61 = MUL_F(f59, FRAC_CONST((-0.7730104533627369)));
    f62 = MUL_F(x[18], FRAC_CONST((-0.1386171691990913)));
    f63 = f60 + f61;
    f64 = f62 - f61;
    f65 = f46 - f64;
    f66 = f46 + f64;
    f67 = f52 - f58;
    f68 = f52 + f58;
    f69 = f66 - f68;
    f70 = f66 + f68;
    f71 = MUL_F(f69, FRAC_CONST(0.7071067811865476));
    f72 = f65 + f67;
    f73 = MUL_C(f65, COEF_CONST(1.3065629648763766));
    f74 = MUL_F(f72, FRAC_CONST((-0.9238795325112866)));
    f75 = MUL_F(f67, FRAC_CONST((-0.5411961001461967)));
    f76 = f73 + f74;
    f77 = f75 - f74;
    f78 = f45 - f63;
    f79 = f45 + f63;
    f80 = f51 - f57;
    f81 = f51 + f57;
    f82 = f79 + f81;
    f83 = MUL_C(f79, COEF_CONST(1.3065629648763770));
    f84 = MUL_F(f82, FRAC_CONST((-0.3826834323650904)));
    f85 = MUL_F(f81, FRAC_CONST(0.5411961001461961));
    f86 = f83 + f84;
    f87 = f85 - f84;
    f88 = f78 - f80;
    f89 = f78 + f80;
    f90 = MUL_F(f89, FRAC_CONST(0.7071067811865476));
    f91 = f77 - f87;
    f92 = f77 + f87;
    f93 = f71 - f90;
    f94 = f71 + f90;
    f95 = f76 - f86;
    f96 = f76 + f86;
    f97 = f34 - f70;
    f98 = f34 + f70;
    f99 = f36 - f92;
    f100 = f36 + f92;
    f101 = f38 - f91;
    f102 = f38 + f91;
    f103 = f40 - f94;
    f104 = f40 + f94;
    f105 = f39 - f93;
    f106 = f39 + f93;
    f107 = f37 - f96;
    f108 = f37 + f96;
    f109 = f35 - f95;
    f110 = f35 + f95;
    f111 = f33 - f88;
    f112 = f33 + f88;
    f113 = x[1] + x[31];
    f114 = MUL_C(x[1], COEF_CONST(1.0478631305325901));
    f115 = MUL_F(f113, FRAC_CONST((-0.9987954562051724)));
    f116 = MUL_F(x[31], FRAC_CONST((-0.9497277818777548)));
    f117 = f114 + f115;
    f118 = f116 - f115;
    f119 = x[5] + x[27];
    f120 = MUL_C(x[5], COEF_CONST(1.2130114330978077));
    f121 = MUL_F(f119, FRAC_CONST((-0.9700312531945440)));
    f122 = MUL_F(x[27], FRAC_CONST((-0.7270510732912803)));
    f123 = f120 + f121;
    f124 = f122 - f121;
    f125 = x[9] + x[23];
    f126 = MUL_C(x[9], COEF_CONST(1.3315443865537255));
    f127 = MUL_F(f125, FRAC_CONST((-0.9039892931234433)));
    f128 = MUL_F(x[23], FRAC_CONST((-0.4764341996931612)));
    f129 = f126 + f127;
    f130 = f128 - f127;
    f131 = x[13] + x[19];
    f132 = MUL_C(x[13], COEF_CONST(1.3989068359730781));
    f133 = MUL_F(f131, FRAC_CONST((-0.8032075314806453)));
    f134 = MUL_F(x[19], FRAC_CONST((-0.2075082269882124)));
    f135 = f132 + f133;
    f136 = f134 - f133;
    f137 = x[17] + x[15];
    f138 = MUL_C(x[17], COEF_CONST(1.4125100802019777));
    f139 = MUL_F(f137, FRAC_CONST((-0.6715589548470187)));
    f140 = MUL_F(x[15], FRAC_CONST(0.0693921705079402));
    f141 = f138 + f139;
    f142 = f140 - f139;
    f143 = x[21] + x[11];
    f144 = MUL_C(x[21], COEF_CONST(1.3718313541934939));
    f145 = MUL_F(f143, FRAC_CONST((-0.5141027441932219)));
    f146 = MUL_F(x[11], FRAC_CONST(0.3436258658070501));
    f147 = f144 + f145;
    f148 = f146 - f145;
    f149 = x[25] + x[7];
    f150 = MUL_C(x[25], COEF_CONST(1.2784339185752409));
    f151 = MUL_F(f149, FRAC_CONST((-0.3368898533922200)));
    f152 = MUL_F(x[7], FRAC_CONST(0.6046542117908008));
    f153 = f150 + f151;
    f154 = f152 - f151;
    f155 = x[29] + x[3];
    f156 = MUL_C(x[29], COEF_CONST(1.1359069844201433));
    f157 = MUL_F(f155, FRAC_CONST((-0.1467304744553624)));
    f158 = MUL_F(x[3], FRAC_CONST(0.8424460355094185));
    f159 = f156 + f157;
    f160 = f158 - f157;
    f161 = f118 - f142;
    f162 = f118 + f142;
    f163 = f117 - f141;
    f164 = f117 + f141;
    f165 = f124 - f148;
    f166 = f124 + f148;
    f167 = f123 - f147;
    f168 = f123 + f147;
    f169 = f130 - f154;
    f170 = f130 + f154;
    f171 = f129 - f153;
    f172 = f129 + f153;
    f173 = f136 - f160;
    f174 = f136 + f160;
    f175 = f135 - f159;
    f176 = f135 + f159;
    f177 = f161 + f163;
    f178 = MUL_C(f161, COEF_CONST(1.1758756024193588));
    f179 = MUL_F(f177, FRAC_CONST((-0.9807852804032304)));
    f180 = MUL_F(f163, FRAC_CONST((-0.7856949583871021)));
    f181 = f178 + f179;
    f182 = f180 - f179;
    f183 = f165 + f167;
    f184 = MUL_C(f165, COEF_CONST(1.3870398453221475));
    f185 = MUL_F(f183, FRAC_CONST((-0.5555702330196022)));
    f186 = MUL_F(f167, FRAC_CONST(0.2758993792829431));
    f187 = f184 + f185;
    f188 = f186 - f185;
    f189 = f169 + f171;
    f190 = MUL_F(f169, FRAC_CONST(0.7856949583871022));
    f191 = MUL_F(f189, FRAC_CONST(0.1950903220161283));
    f192 = MUL_C(f171, COEF_CONST(1.1758756024193586));
    f193 = f190 + f191;
    f194 = f192 - f191;
    f195 = f173 + f175;
    f196 = MUL_F(f173, FRAC_CONST((-0.2758993792829430)));
    f197 = MUL_F(f195, FRAC_CONST(0.8314696123025452));
    f198 = MUL_C(f175, COEF_CONST(1.3870398453221475));
    f199 = f196 + f197;
    f200 = f198 - f197;
    f201 = f162 - f170;
    f202 = f162 + f170;
    f203 = f164 - f172;
    f204 = f164 + f172;
    f205 = f166 - f174;
    f206 = f166 + f174;
    f207 = f168 - f176;
    f208 = f168 + f176;
    f209 = f182 - f194;
    f210 = f182 + f194;
    f211 = f181 - f193;
    f212 = f181 + f193;
    f213 = f188 - f200;
    f214 = f188 + f200;
    f215 = f187 - f199;
    f216 = f187 + f199;
    f217 = f201 + f203;
    f218 = MUL_C(f201, COEF_CONST(1.3065629648763766));
    f219 = MUL_F(f217, FRAC_CONST((-0.9238795325112866)));
    f220 = MUL_F(f203, FRAC_CONST((-0.5411961001461967)));
    f221 = f218 + f219;
    f222 = f220 - f219;
    f223 = f205 + f207;
    f224 = MUL_F(f205, FRAC_CONST(0.5411961001461969));
    f225 = MUL_F(f223, FRAC_CONST(0.3826834323650898));
    f226 = MUL_C(f207, COEF_CONST(1.3065629648763766));
    f227 = f224 + f225;
    f228 = f226 - f225;
    f229 = f209 + f211;
    f230 = MUL_C(f209, COEF_CONST(1.3065629648763766));
    f231 = MUL_F(f229, FRAC_CONST((-0.9238795325112866)));
    f232 = MUL_F(f211, FRAC_CONST((-0.5411961001461967)));
    f233 = f230 + f231;
    f234 = f232 - f231;
    f235 = f213 + f215;
    f236 = MUL_F(f213, FRAC_CONST(0.5411961001461969));
    f237 = MUL_F(f235, FRAC_CONST(0.3826834323650898));
    f238 = MUL_C(f215, COEF_CONST(1.3065629648763766));
    f239 = f236 + f237;
    f240 = f238 - f237;
    f241 = f202 - f206;
    f242 = f202 + f206;
    f243 = f204 - f208;
    f244 = f204 + f208;
    f245 = f222 - f228;
    f246 = f222 + f228;
    f247 = f221 - f227;
    f248 = f221 + f227;
    f249 = f210 - f214;
    f250 = f210 + f214;
    f251 = f212 - f216;
    f252 = f212 + f216;
    f253 = f234 - f240;
    f254 = f234 + f240;
    f255 = f233 - f239;
    f256 = f233 + f239;
    f257 = f241 - f243;
    f258 = f241 + f243;
    f259 = MUL_F(f257, FRAC_CONST(0.7071067811865474));
    f260 = MUL_F(f258, FRAC_CONST(0.7071067811865474));
    f261 = f245 - f247;
    f262 = f245 + f247;
    f263 = MUL_F(f261, FRAC_CONST(0.7071067811865474));
    f264 = MUL_F(f262, FRAC_CONST(0.7071067811865474));
    f265 = f249 - f251;
    f266 = f249 + f251;
    f267 = MUL_F(f265, FRAC_CONST(0.7071067811865474));
    f268 = MUL_F(f266, FRAC_CONST(0.7071067811865474));
    f269 = f253 - f255;