diff plugin/PiperVampPluginFactory.cpp @ 1230:9ae2ce9190e6 project-file-rework

Merge

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugin/PiperVampPluginFactory.cpp	Tue Oct 25 11:04:26 2016 +0100
@@ -0,0 +1,170 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2006 Chris Cannam and QMUL.
+    
+    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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "PiperVampPluginFactory.h"
+#include "PluginIdentifier.h"
+
+#include "system/System.h"
+
+#include "PluginScan.h"
+
+#ifdef _WIN32
+#undef VOID
+#undef ERROR
+#define CAPNP_LITE 1
+#endif
+
+#include "vamp-client/AutoPlugin.h"
+
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QTextStream>
+#include <QCoreApplication>
+
+#include <iostream>
+
+#include "base/Profiler.h"
+
+#include "vamp-client/ProcessQtTransport.h"
+#include "vamp-client/CapnpRRClient.h"
+
+using namespace std;
+
+//#define DEBUG_PLUGIN_SCAN_AND_INSTANTIATE 1
+
+PiperVampPluginFactory::PiperVampPluginFactory() :
+    // No server unless we find one - don't run arbitrary stuff from the path:
+    m_serverName()
+{
+    // Server must exist either in the same directory as this one or
+    // (preferably) a subdirectory called "piper-bin".
+    //!!! todo: merge this with plugin scan checker thingy used in main.cpp?
+    QString myDir = QCoreApplication::applicationDirPath();
+    QString name = "piper-vamp-server";
+    QString path = myDir + "/piper-bin/" + name;
+    QString suffix = "";
+#ifdef _WIN32
+    suffix = ".exe";
+#endif
+    if (!QFile(path + suffix).exists()) {
+        cerr << "NOTE: Piper Vamp server not found at " << (path + suffix)
+             << ", trying in my own directory" << endl;
+        path = myDir + "/" + name;
+    }
+    if (!QFile(path + suffix).exists()) {
+        cerr << "NOTE: Piper Vamp server not found at " << (path + suffix)
+             << endl;
+    } else {
+        m_serverName = (path + suffix).toStdString();
+    }
+}
+
+vector<QString>
+PiperVampPluginFactory::getPluginIdentifiers(QString &errorMessage)
+{
+    Profiler profiler("PiperVampPluginFactory::getPluginIdentifiers");
+
+    QMutexLocker locker(&m_mutex);
+
+    if (m_serverName == "") {
+        errorMessage = QObject::tr("External plugin host executable does not appear to be installed");
+        return {};
+    }
+    
+    if (m_pluginData.empty()) {
+        populate(errorMessage);
+    }
+
+    vector<QString> rv;
+
+    for (const auto &d: m_pluginData) {
+        rv.push_back(QString("vamp:") + QString::fromStdString(d.second.pluginKey));
+    }
+
+    return rv;
+}
+
+Vamp::Plugin *
+PiperVampPluginFactory::instantiatePlugin(QString identifier,
+                                          sv_samplerate_t inputSampleRate)
+{
+    Profiler profiler("PiperVampPluginFactory::instantiatePlugin");
+
+    auto psd = getPluginStaticData(identifier);
+    if (psd.pluginKey == "") {
+        return 0;
+    }
+    
+    auto ap = new piper_vamp::client::AutoPlugin
+        (m_serverName, psd.pluginKey, float(inputSampleRate), 0);
+    if (!ap->isOK()) {
+        delete ap;
+        return 0;
+    }
+
+    return ap;
+}
+
+piper_vamp::PluginStaticData
+PiperVampPluginFactory::getPluginStaticData(QString identifier)
+{
+    if (m_pluginData.find(identifier) != m_pluginData.end()) {
+        return m_pluginData[identifier];
+    } else {
+        return {};
+    }
+}
+
+QString
+PiperVampPluginFactory::getPluginCategory(QString identifier)
+{
+    if (m_taxonomy.find(identifier) != m_taxonomy.end()) {
+        return m_taxonomy[identifier];
+    } else {
+        return {};
+    }
+}
+
+void
+PiperVampPluginFactory::populate(QString &errorMessage)
+{
+    if (m_serverName == "") return;
+
+    piper_vamp::client::ProcessQtTransport transport(m_serverName);
+    if (!transport.isOK()) {
+        errorMessage = QObject::tr("Could not start external plugin host");
+        return;
+    }
+            
+    piper_vamp::client::CapnpRRClient client(&transport);
+    piper_vamp::ListResponse lr = client.listPluginData();
+
+    for (const auto &pd: lr.available) {
+
+        QString identifier =
+            QString("vamp:") + QString::fromStdString(pd.pluginKey);
+
+        m_pluginData[identifier] = pd;
+
+        QStringList catlist;
+        for (const auto &cs: pd.category) {
+            catlist.push_back(QString::fromStdString(cs));
+        }
+
+        m_taxonomy[identifier] = catlist.join(" > ");
+    }
+}
+