40 #define B0 1.00000000000000000000 41 #define B1 0.72095982200694791383 // (cos(pi*1/16)sqrt(2))^-1 42 #define B2 0.76536686473017954350 // (cos(pi*2/16)sqrt(2))^-1 43 #define B3 0.85043009476725644878 // (cos(pi*3/16)sqrt(2))^-1 44 #define B4 1.00000000000000000000 // (cos(pi*4/16)sqrt(2))^-1 45 #define B5 1.27275858057283393842 // (cos(pi*5/16)sqrt(2))^-1 46 #define B6 1.84775906502257351242 // (cos(pi*6/16)sqrt(2))^-1 47 #define B7 3.62450978541155137218 // (cos(pi*7/16)sqrt(2))^-1 50 #define A1 0.70710678118654752438 // cos(pi*4/16) 51 #define A2 0.54119610014619698435 // cos(pi*6/16)sqrt(2) 52 #define A5 0.38268343236508977170 // cos(pi*6/16) 53 #define A4 1.30656296487637652774 // cos(pi*2/16)sqrt(2) 68 FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
69 FLOAT tmp10, tmp11, tmp12, tmp13;
70 FLOAT z2, z4, z11, z13;
73 for (i=0; i<8*8; i+=8) {
74 tmp0= data[0 +
i] + data[7 +
i];
75 tmp7= data[0 +
i] - data[7 +
i];
76 tmp1= data[1 +
i] + data[6 +
i];
77 tmp6= data[1 +
i] - data[6 +
i];
78 tmp2= data[2 +
i] + data[5 +
i];
79 tmp5= data[2 +
i] - data[5 +
i];
80 tmp3= data[3 +
i] + data[4 +
i];
81 tmp4= data[3 +
i] - data[4 +
i];
88 temp[0 +
i]= tmp10 + tmp11;
89 temp[4 +
i]= tmp10 - tmp11;
93 temp[2 +
i]= tmp13 + tmp12;
94 temp[6 +
i]= tmp13 - tmp12;
100 z2= tmp4*(
A2+
A5) - tmp6*
A5;
101 z4= tmp6*(
A4-
A5) + tmp4*
A5;
108 temp[5 +
i]= z13 + z2;
109 temp[3 +
i]= z13 - z2;
110 temp[1 +
i]= z11 + z4;
111 temp[7 +
i]= z11 - z4;
117 FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
118 FLOAT tmp10, tmp11, tmp12, tmp13;
119 FLOAT z2, z4, z11, z13;
127 for (i=0; i<8; i++) {
128 tmp0= temp[8*0 +
i] + temp[8*7 +
i];
129 tmp7= temp[8*0 +
i] - temp[8*7 +
i];
130 tmp1= temp[8*1 +
i] + temp[8*6 +
i];
131 tmp6= temp[8*1 +
i] - temp[8*6 +
i];
132 tmp2= temp[8*2 +
i] + temp[8*5 +
i];
133 tmp5= temp[8*2 +
i] - temp[8*5 +
i];
134 tmp3= temp[8*3 +
i] + temp[8*4 +
i];
135 tmp4= temp[8*3 +
i] - temp[8*4 +
i];
154 z2= tmp4*(
A2+
A5) - tmp6*
A5;
155 z4= tmp6*(
A4-
A5) + tmp4*
A5;
171 FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
172 FLOAT tmp10, tmp11, tmp12, tmp13;
180 for (i=0; i<8; i++) {
181 tmp0 = temp[8*0 +
i] + temp[8*1 +
i];
182 tmp1 = temp[8*2 +
i] + temp[8*3 +
i];
183 tmp2 = temp[8*4 +
i] + temp[8*5 +
i];
184 tmp3 = temp[8*6 +
i] + temp[8*7 +
i];
185 tmp4 = temp[8*0 +
i] - temp[8*1 +
i];
186 tmp5 = temp[8*2 +
i] - temp[8*3 +
i];
187 tmp6 = temp[8*4 +
i] - temp[8*5 +
i];
188 tmp7 = temp[8*6 +
i] - temp[8*7 +
i];
void ff_faandct248(int16_t *data)
static const FLOAT postscale[64]
common internal API header
static av_always_inline av_const long int lrintf(float x)
void ff_faandct(int16_t *data)
Replacements for frequently missing libm functions.
static av_always_inline void row_fdct(FLOAT temp[64], int16_t *data)