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avfilter/af_acrossover: ignore out of range splits

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Paul B Mahol 2024-10-09 23:06:26 +02:00
parent 0531b15bba
commit 850e9d2d3c
2 changed files with 9 additions and 4 deletions
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11
libavfilter/acrossover_template.c
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@ -38,6 +38,7 @@
typedef struct fn(SVFCoeffs) {
ftype g, r, k, f;
ftype gk, g2, g2k;
int valid;
} fn(SVFCoeffs);
typedef struct fn(SVFCache) {
@ -64,9 +65,10 @@ static int fn(set_params)(AVFilterContext *ctx)
svf_cf = s->svf_cf;
for (int band = 0; band <= s->nb_splits; band++) {
for (int band = 0; band < s->nb_splits; band++) {
fn(SVFCoeffs) *sf = &svf_cf[band];
sf->valid = s->splits[band] < sample_rate * F(0.5);
sf->g = FTAN(F(M_PI)*s->splits[band]/sample_rate);
sf->k = F(2.0) - F(2.0) * s->resonance[band];
sf->g2 = sf->g*sf->g;
@ -160,11 +162,11 @@ static int fn(filter_channels)(AVFilterContext *ctx, void *arg, int jobnr, int n
int last_band = -1;
for (int band = 0; band < nb_outs-1; band++) {
const fn(SVFCoeffs) *svf_cf = &svfcf[band];
const int next_band = next_active_band(active, band, nb_outs);
last_band = active[band] ? band : last_band;
if (active[band] && next_band) {
const fn(SVFCoeffs) *svf_cf = &svfcf[band];
if (svf_cf->valid && active[band] && next_band) {
ftype *svf_lo = svf[ch].sc[band][0];
ftype *svf_hi = svf[ch].sc[band][1];
ftype *dst = (ftype *)frames[band]->extended_data[ch];
@ -203,6 +205,9 @@ static int fn(filter_channels)(AVFilterContext *ctx, void *arg, int jobnr, int n
ftype *dst = (ftype *)frames[band]->extended_data[ch];
const ftype out_gain = gains[band];
if (!svf_cf->valid)
continue;
for (int n = 0; n < nb_samples; n++) {
ftype high = F(0.0), low = F(0.0);

2
libavfilter/af_acrossover.c
View File

@ -178,7 +178,7 @@ static void parse_gains(AVFilterContext *ctx)
s->gains[i] = s->gains_opt[i];
}
for (; i < MAX_BANDS; i++)
for (; i < MAX_BANDS && i > 0; i++)
s->gains[i] = s->gains[i-1];
}