Move ducker to separate directory

ducker/Makefile

@@ -0,0 +1,24 @@
+CFLAGS := -Wall -O3 -g -D_GNU_SOURCE
+LDFLAGS := -lm
+
+CFLAGS += `pkg-config lv2core --cflags`
+LDFLAGS += `pkg-config lv2core --libs`
+
+DUCKERSRC := ducker.c
+DUCKEROBJ := $(DUCKERSRC:.c=.o)
+DUCKERO := ducker.so
+
+all: $(DUCKERO)
+
+clean:
+	rm $(DUCKEROBJ) $(DUCKERO)
+
+depend:
+	makedepend $(DUCKERSRC)
+
+$(DUCKERO): $(DUCKEROBJ)
+	$(CC) -shared -fPIC -Wl,-soname,$(DUCKERO) $(DUCKEROBJ) -o $@
+
+.c.o:
+	$(CC) -c -fPIC $(CFLAGS) $< -o $@
+

ducker/ducker.c

@@ -0,0 +1,90 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <lv2.h>
+
+struct ducker
+{
+	double sample_rate;
+	float on_factor;
+	float off_factor;
+
+	float *in_main_l;
+	float *in_main_r;
+	float *in_aux_l;
+	float *in_aux_r;
+	float *out_l;
+	float *out_r;
+};
+
+static LV2_Handle ducker_instantiate(
+	const LV2_Descriptor *descriptor,
+	double sample_rate,
+	const char *bundle_path,
+	const LV2_Feature *const *host_features)
+{
+	/* Allocate local data */
+	struct ducker *d = malloc(sizeof *d);
+	if (d == NULL) {
+		return NULL;
+	}
+
+	memset(d, 0, sizeof *d);
+
+	d->sample_rate = sample_rate;
+
+	d->on_factor  = 0.0006f * 44100.0f / sample_rate;
+	d->off_factor = 0.00028f * 44100.0f / sample_rate;
+
+	return (LV2_Handle)d;
+}
+
+static void ducker_connect_port(LV2_Handle lv2instance, uint32_t port, void *data)
+{
+	struct ducker *d = (struct ducker *)lv2instance;
+
+	/* Audio ports */
+	switch (port) {
+		case 0: d->in_main_l = data; break;
+		case 1: d->in_main_r = data; break;
+		case 2: d->in_aux_l = data; break;
+		case 3: d->in_aux_r = data; break;
+		case 4: d->out_l = data; break;
+		case 5: d->out_r = data; break;
+	}
+}
+
+static void ducker_run(LV2_Handle lv2instance, uint32_t sample_count)
+{
+	struct ducker *d = (struct ducker *)lv2instance;
+
+	while (sample_count--) {
+	}
+}
+
+static void ducker_cleanup(LV2_Handle lv2instance)
+{
+	struct ducker *d = (struct ducker *)lv2instance;
+
+	free(d);
+}
+
+static const LV2_Descriptor s_lv2descriptor =
+{
+	.URI = "http://fuzzle.org/~petern/ducker/1",
+	.instantiate = &ducker_instantiate,
+	.connect_port = &ducker_connect_port,
+	.run = &ducker_run,
+	.cleanup = &ducker_cleanup,
+};
+
+const LV2_Descriptor *lv2_descriptor(uint32_t index)
+{
+	if (index == 0) {
+		return &s_lv2descriptor;
+	}
+
+	return NULL;
+}

ducker/ducker.ttl

@@ -0,0 +1,66 @@
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix lv2ev: <http://lv2plug.in/ns/ext/event#> .
+
+<http://fuzzle.org/~petern/ptap/1>
+  a lv2:Plugin;
+  doap:maintainer [
+    foaf:name "Peter Nelson";
+    foaf:homepage <http://fuzzle.org/~petern/ptap/>;
+    foaf:mbox <mailto:peter@fuzzle.org>;
+  ];
+  doap:name "PTap";
+  doap:license <http://usefulinc.com/doap/licenses/gpl>;
+
+  lv2:port [
+    a lv2:InputPort, lv2:AudioPort;
+    lv2:datatype lv2:float;
+    lv2:index 0;
+    lv2:symbol "in L";
+    lv2:name "Main Input L";
+  ],
+  [
+    a lv2:InputPort, lv2:AudioPort;
+    lv2:datatype lv2:float;
+    lv2:index 1;
+    lv2:symbol "in R";
+    lv2:name "Main Input R";
+  ],
+  [
+    a lv2:InputPort, lv2:AudioPort;
+    lv2:datatype lv2:float;
+    lv2:index 2;
+    lv2:symbol "aux L";
+    lv2:name "Aux Input R";
+  ],
+  [
+    a lv2:InputPort, lv2:AudioPort;
+    lv2:datatype lv2:float;
+    lv2:index 3;
+    lv2:symbol "aux R";
+    lv2:name "Aux Input R";
+  ],
+  [
+    a lv2:OutputPort, lv2:AudioPort;
+    lv2:datatype lv2:float;
+    lv2:index 4;
+    lv2:symbol "out L";
+    lv2:name "Output L";
+  ],
+  [
+    a lv2:OutputPort, lv2:AudioPort;
+    lv2:datatype lv2:float;
+    lv2:index 5;
+    lv2:symbol "out R";
+    lv2:name "Output R";
+  ],
+  [
+    a lv2:InputPort, lv2:ControlPort;
+    lv2:index 4;
+    lv2:symbol "t1_1_gain";
+    lv2:name "Tap 1_1 Gain";
+    lv2:minimum 0;
+    lv2:default 0;
+    lv2:maximum 1;
+  ].

ducker/manifest.ttl

@@ -0,0 +1,7 @@
+@prefix lv2:  <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://fuzzle.org/~petern/ptap/1>
+  a lv2:Plugin, lv2:DelayPlugin;
+  lv2:binary <ptap.so>;
+  rdfs:seeAlso <ptap.ttl>.