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filter-chain: add copy function

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This commit is contained in:
Wim Taymans 2021-05-12 20:16:53 +02:00
parent fb6db4a1f9
commit 2017de6da8
1 changed files with 38 additions and 0 deletions
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38
src/modules/module-filter-chain/builtin.h
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@ -61,6 +61,42 @@ static void builtin_cleanup(LADSPA_Handle Instance)
free(impl);
}
/** copy */
static void copy_run(LADSPA_Handle Instance, unsigned long SampleCount)
{
struct builtin *impl = Instance;
float *in = impl->port[1], *out = impl->port[0];
memcpy(out, in, SampleCount * sizeof(float));
}
static const LADSPA_PortDescriptor copy_port_desc[] = {
LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO,
LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
};
static const char * const copy_port_names[] = {
"Out", "In"
};
static const LADSPA_PortRangeHint copy_range_hints[] = {
{ 0, }, { 0, },
};
static const LADSPA_Descriptor copy_desc = {
.Label = "copy",
.Name = "Copy input to output",
.Maker = "PipeWire",
.Copyright = "MIT",
.PortCount = 2,
.PortDescriptors = copy_port_desc,
.PortNames = copy_port_names,
.PortRangeHints = copy_range_hints,
.instantiate = builtin_instantiate,
.connect_port = builtin_connect_port,
.run = copy_run,
.cleanup = builtin_cleanup,
};
/** mixer */
static void mixer_run(LADSPA_Handle Instance, unsigned long SampleCount)
{
@ -377,6 +413,8 @@ static const LADSPA_Descriptor * builtin_ladspa_descriptor(unsigned long Index)
return &bq_notch_desc;
case 8:
return &bq_allpass_desc;
case 9:
return &copy_desc;
}
return NULL;
}