Example #1
0
File: aacps.c Project: clook/FFmpeg
static void hybrid_analysis(PSDSPContext *dsp, INTFLOAT out[91][32][2],
                            INTFLOAT in[5][44][2], INTFLOAT L[2][38][64],
                            int is34, int len)
{
    int i, j;
    for (i = 0; i < 5; i++) {
        for (j = 0; j < 38; j++) {
            in[i][j+6][0] = L[0][j][i];
            in[i][j+6][1] = L[1][j][i];
        }
    }
    if (is34) {
        hybrid4_8_12_cx(dsp, in[0], out,    f34_0_12, 12, len);
        hybrid4_8_12_cx(dsp, in[1], out+12, f34_1_8,   8, len);
        hybrid4_8_12_cx(dsp, in[2], out+20, f34_2_4,   4, len);
        hybrid4_8_12_cx(dsp, in[3], out+24, f34_2_4,   4, len);
        hybrid4_8_12_cx(dsp, in[4], out+28, f34_2_4,   4, len);
        dsp->hybrid_analysis_ileave(out + 27, L, 5, len);
    } else {
        hybrid6_cx(dsp, in[0], out, f20_0_8, len);
        hybrid2_re(in[1], out+6, g1_Q2, len, 1);
        hybrid2_re(in[2], out+8, g1_Q2, len, 0);
        dsp->hybrid_analysis_ileave(out + 7, L, 3, len);
    }
    //update in_buf
    for (i = 0; i < 5; i++) {
        memcpy(in[i], in[i]+32, 6 * sizeof(in[i][0]));
    }
}
Example #2
0
File: aacps.c Project: Arcen/FFmpeg
static void hybrid_analysis(float out[91][32][2], float in[5][44][2], float L[2][38][64], int is34, int len)
{
    int i, j;
    for (i = 0; i < 5; i++) {
        for (j = 0; j < 38; j++) {
            in[i][j+6][0] = L[0][j][i];
            in[i][j+6][1] = L[1][j][i];
        }
    }
    if (is34) {
        hybrid4_8_12_cx(in[0], out,    f34_0_12, 12, len);
        hybrid4_8_12_cx(in[1], out+12, f34_1_8,   8, len);
        hybrid4_8_12_cx(in[2], out+20, f34_2_4,   4, len);
        hybrid4_8_12_cx(in[3], out+24, f34_2_4,   4, len);
        hybrid4_8_12_cx(in[4], out+28, f34_2_4,   4, len);
        for (i = 0; i < 59; i++) {
            for (j = 0; j < len; j++) {
                out[i+32][j][0] = L[0][j][i+5];
                out[i+32][j][1] = L[1][j][i+5];
            }
        }
    } else {
        hybrid6_cx(in[0], out, f20_0_8, len);
        hybrid2_re(in[1], out+6, g1_Q2, len, 1);
        hybrid2_re(in[2], out+8, g1_Q2, len, 0);
        for (i = 0; i < 61; i++) {
            for (j = 0; j < len; j++) {
                out[i+10][j][0] = L[0][j][i+3];
                out[i+10][j][1] = L[1][j][i+3];
            }
        }
    }
    //update in_buf
    for (i = 0; i < 5; i++) {
        memcpy(in[i], in[i]+32, 6 * sizeof(in[i][0]));
    }
}