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Diffstat (limited to 'utils/ladspa2lv2.cc')
| -rw-r--r-- | utils/ladspa2lv2.cc | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/utils/ladspa2lv2.cc b/utils/ladspa2lv2.cc new file mode 100644 index 0000000..3b989a1 --- /dev/null +++ b/utils/ladspa2lv2.cc @@ -0,0 +1,193 @@ +/* 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 <ladspa.h> +#include <dlfcn.h> +#include "raul/RDFWriter.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; +} + +#if 0 +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); +} +#endif + +void +write_lv2_turtle(LADSPA_Descriptor* descriptor, const char* uri, const char* filename) +{ +#if 0 + 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(); +#endif + RDFWriter writer; + + writer.add_prefix("lv2", "http://lv2plug.in/ontology#"); + writer.add_prefix("doap", "http://usefulinc.com/ns/doap#"); + + writer.start_to_filename(filename); + + RdfId plugin_id = RdfId(RdfId::RESOURCE, uri); + + writer.write(plugin_id, + RdfId(RdfId::RESOURCE, "rdf:type"), + RdfId(RdfId::RESOURCE, "lv2:Plugin")); + + writer.write(plugin_id, + RdfId(RdfId::RESOURCE, "doap:name"), + Atom(descriptor->Name)); + + if (LADSPA_IS_HARD_RT_CAPABLE(descriptor->Properties)) + writer.write(plugin_id, + RdfId(RdfId::RESOURCE, "lv2:property"), + RdfId(RdfId::RESOURCE, "lv2:hardRTCapable")); + + for (uint32_t i=0; i < descriptor->PortCount; ++i) { + char index_str[32]; + snprintf(index_str, 32, "%u", i); + + RdfId port_id(RdfId::ANONYMOUS, index_str); + + writer.write(plugin_id, + RdfId(RdfId::RESOURCE, "lv2:port"), + port_id); + + writer.write(port_id, + RdfId(RdfId::RESOURCE, "lv2:index"), + Atom((int32_t)i)); + + writer.write(port_id, + RdfId(RdfId::RESOURCE, "lv2:dataType"), + RdfId(RdfId::RESOURCE, "lv2:float")); + + writer.write(port_id, + RdfId(RdfId::RESOURCE, "lv2:name"), + Atom(descriptor->PortNames[i])); + } + + writer.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; +} |