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avfilter/ardftsrc_template: change taper type

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This commit is contained in:
Paul B Mahol 2024-01-07 13:33:50 +01:00
parent 651aae5ef7
commit b1af3cafd2
1 changed files with 7 additions and 7 deletions
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14
libavfilter/ardftsrc_template.c
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@ -50,7 +50,7 @@ static int fn(src_tx_init)(AVFilterContext *ctx)
{
AudioRDFTSRCContext *s = ctx->priv;
const int taper_samples = s->taper_samples;
ftype *taper;
ctype *taper;
int ret;
for (int ch = 0; ch < s->channels; ch++) {
@ -66,12 +66,12 @@ static int fn(src_tx_init)(AVFilterContext *ctx)
return ret;
}
s->taper = av_calloc(taper_samples, sizeof(ftype));
s->taper = av_calloc(taper_samples, sizeof(*taper));
if (!s->taper)
return AVERROR(ENOMEM);
taper = s->taper;
for (int n = 0; n < taper_samples; n++)
taper[n] = (F(1.0) + COS(F(M_PI) * (n + F(1.0)) / taper_samples)) * F(0.5);
taper[n].re = taper[n].im = (F(1.0) + COS(F(M_PI) * (n + F(1.0)) / taper_samples)) * F(0.5);
return 0;
}
@ -92,7 +92,7 @@ static int fn(src)(AVFilterContext *ctx, AVFrame *in, AVFrame *out, int ch)
const int taper_samples = s->taper_samples;
const int in_offset = (s->in_rdft_size - in_nb_samples) >> 1;
const int offset = tr_nb_samples - taper_samples;
const ftype *taper = s->taper;
const ctype *taper = s->taper;
memset(rdft0, 0, in_offset * sizeof(*rdft0));
memset(rdft0 + s->in_rdft_size - in_offset, 0, in_offset * sizeof(*rdft0));
@ -102,9 +102,9 @@ static int fn(src)(AVFilterContext *ctx, AVFrame *in, AVFrame *out, int ch)
memset(irdft0 + tr_nb_samples, 0, (s->out_rdft_size / 2 + 1 - tr_nb_samples) * sizeof(*irdft0));
memcpy(irdft0, rdft1, tr_nb_samples * sizeof(*irdft0));
for (int n = 0; n < taper_samples; n++) {
irdft0[n + offset].re *= taper[n];
irdft0[n + offset].im *= taper[n];
for (int n = 0, m = offset; n < taper_samples; n++, m++) {
irdft0[m].re *= taper[n].re;
irdft0[m].im *= taper[n].im;
}
s->itx_fn(s->itx_ctx[ch], irdft1, irdft0, sizeof(*irdft0));