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filter-chain: make it possible to suggest a samplerate

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Make it possible to let a plugin suggest a samplerate for the filter.
Make the convolver suggest the samplerate of the IR file anf use that
if nothing else is specified in the config.

Fixes #1659
This commit is contained in:
Wim Taymans 2021-09-29 16:53:18 +02:00
parent 275dfed92a
commit d6469e5437
4 changed files with 20 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/modules/module-filter-chain.c
View file

@ -247,7 +247,7 @@ struct impl {
unsigned int do_disconnect:1;
unsigned int unloading:1;
uint32_t rate;
long unsigned rate;
struct graph graph;
};
@ -1276,7 +1276,7 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
sd = dd = NULL;
for (i = 0; i < n_hndl; i++) {
if ((node->hndl[i] = d->instantiate(d, impl->rate, i, node->config)) == NULL) {
if ((node->hndl[i] = d->instantiate(d, &impl->rate, i, node->config)) == NULL) {
pw_log_error("cannot create plugin instance");
res = -ENOMEM;
goto error;
@ -1308,6 +1308,14 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
graph->n_control++;
}
}
pw_log_info("suggested rate:%lu capture:%d playback:%d", impl->rate,
impl->capture_info.rate, impl->playback_info.rate);
if (impl->capture_info.rate == 0)
impl->capture_info.rate = impl->rate;
if (impl->playback_info.rate == 0)
impl->playback_info.rate = impl->rate;
/* now collect all input and output ports for all the handles. */
for (i = 0; i < n_hndl; i++) {
if (inputs == NULL) {

13
src/modules/module-filter-chain/builtin_plugin.c
View file

@ -49,7 +49,7 @@ struct builtin {
};
static void *builtin_instantiate(const struct fc_descriptor * Descriptor,
unsigned long SampleRate, int index, const char *config)
unsigned long *SampleRate, int index, const char *config)
{
struct builtin *impl;
@ -57,7 +57,7 @@ static void *builtin_instantiate(const struct fc_descriptor * Descriptor,
if (impl == NULL)
return NULL;
impl->rate = SampleRate;
impl->rate = *SampleRate;
return impl;
}
@ -469,7 +469,7 @@ struct convolver_impl {
};
static float *read_samples(const char *filename, float gain, int delay, int offset,
int length, int channel, int *n_samples)
int length, int channel, long unsigned *rate, int *n_samples)
{
float *samples;
#ifdef HAVE_SNDFILE
@ -510,6 +510,7 @@ static float *read_samples(const char *filename, float gain, int delay, int offs
samples[i] = samples[info.channels * i + channel] * gain;
*n_samples = n;
*rate = info.samplerate;
return samples;
#else
pw_log_error("compiled without sndfile support, can't load samples: "
@ -570,7 +571,7 @@ static float *create_dirac(const char *filename, float gain, int delay, int offs
}
static void * convolver_instantiate(const struct fc_descriptor * Descriptor,
unsigned long SampleRate, int index, const char *config)
unsigned long *SampleRate, int index, const char *config)
{
struct convolver_impl *impl;
float *samples;
@ -642,7 +643,7 @@ static void * convolver_instantiate(const struct fc_descriptor * Descriptor,
length, &n_samples);
} else {
samples = read_samples(filename, gain, delay, offset,
length, channel, &n_samples);
length, channel, SampleRate, &n_samples);
}
if (samples == NULL)
return NULL;
@ -658,7 +659,7 @@ static void * convolver_instantiate(const struct fc_descriptor * Descriptor,
if (impl == NULL)
return NULL;
impl->rate = SampleRate;
impl->rate = *SampleRate;
impl->conv = convolver_new(blocksize, tailsize, samples, n_samples);
free(samples);

4
src/modules/module-filter-chain/ladspa_plugin.c
View file

@ -47,10 +47,10 @@ struct descriptor {
};
static void *ladspa_instantiate(const struct fc_descriptor *desc,
unsigned long SampleRate, int index, const char *config)
unsigned long *SampleRate, int index, const char *config)
{
struct descriptor *d = (struct descriptor *)desc;
return d->d->instantiate(d->d, SampleRate);
return d->d->instantiate(d->d, *SampleRate);
}
static const LADSPA_Descriptor *find_desc(LADSPA_Descriptor_Function desc_func, const char *name)

2
src/modules/module-filter-chain/plugin.h
View file

@ -69,7 +69,7 @@ struct fc_descriptor {
struct fc_port *ports;
void *(*instantiate) (const struct fc_descriptor *desc,
unsigned long SampleRate, int index, const char *config);
unsigned long *SampleRate, int index, const char *config);
void (*cleanup) (void *instance);