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-rw-r--r--utils/ladspa2lv2.c145
1 files changed, 145 insertions, 0 deletions
diff --git a/utils/ladspa2lv2.c b/utils/ladspa2lv2.c
new file mode 100644
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--- /dev/null
+++ b/utils/ladspa2lv2.c
@@ -0,0 +1,145 @@
+/* ladspa2lv2
+ * Copyright (C) 2007 Dave Robillard <drobilla@connect.carleton.ca>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <raptor.h>
+#include <ladspa.h>
+#include <dlfcn.h>
+
+#define U(x) ((const unsigned char*)(x))
+
+
+LADSPA_Descriptor*
+load_ladspa_plugin(const char* lib_path, unsigned long index)
+{
+ void* const handle = dlopen(lib_path, RTLD_LAZY);
+ if (handle == NULL)
+ return NULL;
+
+ LADSPA_Descriptor_Function df
+ = (LADSPA_Descriptor_Function)dlsym(handle, "ladspa_descriptor");
+
+ if (df == NULL) {
+ dlclose(handle);
+ return NULL;
+ }
+
+ LADSPA_Descriptor* const descriptor = (LADSPA_Descriptor*)df(index);
+
+ return descriptor;
+}
+
+
+void
+write_resource(raptor_serializer* serializer,
+ const char* subject_uri,
+ const char* predicate_uri,
+ const char* object_uri)
+{
+ raptor_statement triple;
+
+ triple.subject = (void*)raptor_new_uri(U(subject_uri));
+ triple.subject_type = RAPTOR_IDENTIFIER_TYPE_RESOURCE;
+
+ triple.predicate = (void*)raptor_new_uri(U(predicate_uri));
+ triple.predicate_type = RAPTOR_IDENTIFIER_TYPE_RESOURCE;
+
+ //if (object.type() == RdfId::RESOURCE) {
+ triple.object = (void*)raptor_new_uri(U(object_uri));
+ triple.object_type = RAPTOR_IDENTIFIER_TYPE_RESOURCE;
+ /*} else {
+ assert(object.type() == RdfId::ANONYMOUS);
+ triple.object = (unsigned char*)(strdup(object.to_string().c_str()));
+ triple.object_type = RAPTOR_IDENTIFIER_TYPE_ANONYMOUS;
+ }*/
+
+ raptor_serialize_statement(serializer, &triple);
+}
+
+
+void
+write_lv2_turtle(LADSPA_Descriptor* descriptor, const char* uri, const char* filename)
+{
+ raptor_init();
+ raptor_serializer* serializer = raptor_new_serializer("turtle");
+
+ // Set up namespaces
+ raptor_serialize_set_namespace(serializer, raptor_new_uri(
+ U("http://www.w3.org/1999/02/22-rdf-syntax-ns#")), U("rdf"));
+ raptor_serialize_set_namespace(serializer, raptor_new_uri(
+ U("http://www.w3.org/2000/01/rdf-schema#")), U("rdfs"));
+ raptor_serialize_set_namespace(serializer, raptor_new_uri(
+ U("http://www.w3.org/2001/XMLSchema")), U("xsd"));
+ raptor_serialize_set_namespace(serializer, raptor_new_uri(
+ U("http://usefulinc.com/ns/doap#")), U("doap"));
+ raptor_serialize_set_namespace(serializer, raptor_new_uri(
+ U("http://xmlns.com/foaf/0.1/")), U("foaf"));
+ raptor_serialize_set_namespace(serializer, raptor_new_uri(
+ U("http://lv2plug.in/ontology#")), U("lv2"));
+
+ raptor_serialize_start_to_filename(serializer, filename);
+
+
+ // Write out plugin data
+
+ write_resource(serializer, uri,
+ "http://www.w3.org/1999/02/22-rdf-syntax-ns#type", "lv2:Plugin");
+
+ write_resource(serializer, uri,
+ "http://usefulinc.com/ns/doap#name", descriptor->Name);
+
+
+
+ raptor_serialize_end(serializer);
+ raptor_free_serializer(serializer);
+ raptor_finish();
+}
+
+
+void
+print_usage()
+{
+ printf("Usage: ladspa2slv2 /path/to/laddspalib.so index lv2_uri\n\n");
+}
+
+
+int
+main(int argc, char** argv)
+{
+ if (argc != 4) {
+ print_usage();
+ return 1;
+ }
+
+ const char* const lib_path = argv[1];
+ const unsigned long index = atol(argv[2]);
+ const char* const uri = argv[3];
+
+
+ LADSPA_Descriptor* descriptor = load_ladspa_plugin(lib_path, index);
+
+ if (descriptor) {
+ printf("Loaded %s : %lu\n", lib_path, index);
+ write_lv2_turtle(descriptor, uri, "ladspaplugin.ttl");
+ } else {
+ printf("Failed to load %s : %lu\n", lib_path, index);
+ }
+
+ return 0;
+}