void test1d(int nfft,int isinverse,int arch)
{
mdct_lookup cfg;
size_t buflen = sizeof(kiss_fft_scalar)*nfft;
kiss_fft_scalar * in = (kiss_fft_scalar*)malloc(buflen);
kiss_fft_scalar * in_copy = (kiss_fft_scalar*)malloc(buflen);
kiss_fft_scalar * out= (kiss_fft_scalar*)malloc(buflen);
opus_val16 * window= (opus_val16*)malloc(sizeof(opus_val16)*nfft/2);
int k;
clt_mdct_init(&cfg, nfft, 0, arch);
for (k=0;k<nfft;++k) {
in[k] = (rand() % 32768) - 16384;
}
for (k=0;k<nfft/2;++k) {
window[k] = Q15ONE;
}
for (k=0;k<nfft;++k) {
in[k] *= 32768;
}
if (isinverse)
{
for (k=0;k<nfft;++k) {
in[k] /= nfft;
}
}
for (k=0;k<nfft;++k)
in_copy[k] = in[k];
/*for (k=0;k<nfft;++k) printf("%d %d ", in[k].r, in[k].i);printf("\n");*/
if (isinverse)
{
for (k=0;k<nfft;++k)
out[k] = 0;
clt_mdct_backward(&cfg,in,out, window, nfft/2, 0, 1, arch);
/* apply TDAC because clt_mdct_backward() no longer does that */
for (k=0;k<nfft/4;++k)
out[nfft-k-1] = out[nfft/2+k];
check_inv(in,out,nfft,isinverse);
} else {
clt_mdct_forward(&cfg,in,out,window, nfft/2, 0, 1, arch);
check(in_copy,out,nfft,isinverse);
}
/*for (k=0;k<nfft;++k) printf("%d %d ", out[k].r, out[k].i);printf("\n");*/
free(in);
free(in_copy);
free(out);
free(window);
clt_mdct_clear(&cfg, arch);
}
void test1d(int nfft,int isinverse)
{
mdct_lookup cfg;
size_t buflen = sizeof(kiss_fft_scalar)*nfft;
kiss_fft_scalar * in = (kiss_fft_scalar*)malloc(buflen);
kiss_fft_scalar * out= (kiss_fft_scalar*)malloc(buflen);
celt_word16 * window= (celt_word16*)malloc(sizeof(celt_word16)*nfft/2);
int k;
clt_mdct_init(&cfg, nfft);
for (k=0;k<nfft;++k) {
in[k] = (rand() % 32768) - 16384;
}
for (k=0;k<nfft/2;++k) {
window[k] = Q15ONE;
}
#ifdef DOUBLE_PRECISION
for (k=0;k<nfft;++k) {
in[k] *= 32768;
}
#endif
if (isinverse)
{
for (k=0;k<nfft;++k) {
in[k] /= nfft;
}
}
/*for (k=0;k<nfft;++k) printf("%d %d ", in[k].r, in[k].i);printf("\n");*/
if (isinverse)
{
for (k=0;k<nfft;++k)
out[k] = 0;
clt_mdct_backward(&cfg,in,out, window, nfft/2);
check_inv(in,out,nfft,isinverse);
} else {
clt_mdct_forward(&cfg,in,out,window, nfft/2);
check(in,out,nfft,isinverse);
}
/*for (k=0;k<nfft;++k) printf("%d %d ", out[k].r, out[k].i);printf("\n");*/
free(in);
free(out);
clt_mdct_clear(&cfg);
}
static
#endif
void celt_synthesis(const CELTMode *mode, celt_norm *X, celt_sig * out_syn[],
opus_val16 *oldBandE, int start, int effEnd, int C, int CC,
int isTransient, int LM, int downsample,
int silence, int arch)
{
int c, i;
int M;
int b;
int B;
int N, NB;
int shift;
int nbEBands;
int overlap;
VARDECL(celt_sig, freq);
SAVE_STACK;
overlap = mode->overlap;
nbEBands = mode->nbEBands;
N = mode->shortMdctSize<<LM;
ALLOC(freq, N, celt_sig); /**< Interleaved signal MDCTs */
M = 1<<LM;
if (isTransient)
{
B = M;
NB = mode->shortMdctSize;
shift = mode->maxLM;
} else {
B = 1;
NB = mode->shortMdctSize<<LM;
shift = mode->maxLM-LM;
}
if (CC==2&&C==1)
{
/* Copying a mono streams to two channels */
celt_sig *freq2;
denormalise_bands(mode, X, freq, oldBandE, start, effEnd, M,
downsample, silence);
/* Store a temporary copy in the output buffer because the IMDCT destroys its input. */
freq2 = out_syn[1]+overlap/2;
OPUS_COPY(freq2, freq, N);
for (b=0;b<B;b++)
clt_mdct_backward(&mode->mdct, &freq2[b], out_syn[0]+NB*b, mode->window, overlap, shift, B, arch);
for (b=0;b<B;b++)
clt_mdct_backward(&mode->mdct, &freq[b], out_syn[1]+NB*b, mode->window, overlap, shift, B, arch);
} else if (CC==1&&C==2)
{
/* Downmixing a stereo stream to mono */
celt_sig *freq2;
freq2 = out_syn[0]+overlap/2;
denormalise_bands(mode, X, freq, oldBandE, start, effEnd, M,
downsample, silence);
/* Use the output buffer as temp array before downmixing. */
denormalise_bands(mode, X+N, freq2, oldBandE+nbEBands, start, effEnd, M,
downsample, silence);
for (i=0;i<N;i++)
freq[i] = HALF32(ADD32(freq[i],freq2[i]));
for (b=0;b<B;b++)
clt_mdct_backward(&mode->mdct, &freq[b], out_syn[0]+NB*b, mode->window, overlap, shift, B, arch);
} else {
/* Normal case (mono or stereo) */
c=0; do {
denormalise_bands(mode, X+c*N, freq, oldBandE+c*nbEBands, start, effEnd, M,
downsample, silence);
for (b=0;b<B;b++)
clt_mdct_backward(&mode->mdct, &freq[b], out_syn[c]+NB*b, mode->window, overlap, shift, B, arch);
} while (++c<CC);
}
RESTORE_STACK;
}
