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filter-chain: add dirac pulse

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This commit is contained in:
Wim Taymans 2021-09-07 20:12:58 +02:00
parent a54fa5f26d
commit 75f15accd5
1 changed files with 21 additions and 0 deletions
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21
src/modules/module-filter-chain/builtin_plugin.c
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@ -551,6 +551,24 @@ static float *create_hilbert(const char *filename, float gain, int delay, int of
return samples;
}
static float *create_dirac(const char *filename, float gain, int delay, int offset,
int length, int *n_samples)
{
float *samples;
int n;
n = delay + 1;
samples = calloc(n, sizeof(float));
if (samples == NULL)
return NULL;
samples[delay] = gain;
*n_samples = n;
return samples;
}
static void * convolver_instantiate(const struct fc_descriptor * Descriptor,
unsigned long SampleRate, int index, const char *config)
{
@ -619,6 +637,9 @@ static void * convolver_instantiate(const struct fc_descriptor * Descriptor,
if (spa_streq(filename, "/hilbert")) {
samples = create_hilbert(filename, gain, delay, offset,
length, &n_samples);
} else if (spa_streq(filename, "/dirac")) {
samples = create_dirac(filename, gain, delay, offset,
length, &n_samples);
} else {
samples = read_samples(filename, gain, delay, offset,
length, channel, &n_samples);