1 files changed, 325 insertions, 0 deletions

diff --git a/rbutil/rbutilqt/base/ttsfestival.cpp b/rbutil/rbutilqt/base/ttsfestival.cpp
new file mode 100644
index 0000000000..37d263a932
--- /dev/null
+++ b/rbutil/rbutilqt/base/ttsfestival.cpp
@@ -0,0 +1,325 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+*
+*   Copyright (C) 2007 by Dominik Wenger
+*   $Id$
+*
+* All files in this archive are subject to the GNU General Public License.
+* See the file COPYING in the source tree root for full license agreement.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+
+#include "ttsfestival.h"
+#include "utils.h"
+#include "rbsettings.h"
+
+TTSFestival::~TTSFestival()
+{
+    stop();
+}
+
+void TTSFestival::generateSettings()
+{
+    // server path
+    QString exepath = RbSettings::subValue("festival-server",RbSettings::TtsPath).toString();
+    if(exepath == "" ) exepath = findExecutable("festival");
+    insertSetting(eSERVERPATH,new EncTtsSetting(this,EncTtsSetting::eSTRING,"Path to Festival server:",exepath,EncTtsSetting::eBROWSEBTN));
+
+    // client path
+    QString clientpath = RbSettings::subValue("festival-client",RbSettings::TtsPath).toString();
+    if(clientpath == "" ) clientpath = findExecutable("festival_client");
+    insertSetting(eCLIENTPATH,new EncTtsSetting(this,EncTtsSetting::eSTRING,
+        tr("Path to Festival client:"),clientpath,EncTtsSetting::eBROWSEBTN));
+
+    // voice
+    EncTtsSetting* setting = new EncTtsSetting(this,EncTtsSetting::eSTRINGLIST,
+        tr("Voice:"),RbSettings::subValue("festival",RbSettings::TtsVoice),getVoiceList(exepath),EncTtsSetting::eREFRESHBTN);
+    connect(setting,SIGNAL(refresh()),this,SLOT(updateVoiceList()));
+    connect(setting,SIGNAL(dataChanged()),this,SLOT(clearVoiceDescription()));
+    insertSetting(eVOICE,setting);
+
+    //voice description
+    setting = new EncTtsSetting(this,EncTtsSetting::eREADONLYSTRING,
+        tr("Voice description:"),"",EncTtsSetting::eREFRESHBTN);
+    connect(setting,SIGNAL(refresh()),this,SLOT(updateVoiceDescription()));
+    insertSetting(eVOICEDESC,setting);
+}
+
+void TTSFestival::saveSettings()
+{
+    //save settings in user config
+    RbSettings::setSubValue("festival-server",RbSettings::TtsPath,getSetting(eSERVERPATH)->current().toString());
+    RbSettings::setSubValue("festival-client",RbSettings::TtsPath,getSetting(eCLIENTPATH)->current().toString());
+    RbSettings::setSubValue("festival",RbSettings::TtsVoice,getSetting(eVOICE)->current().toString());
+
+    RbSettings::sync();
+}
+
+void TTSFestival::updateVoiceDescription()
+{
+    // get voice Info with current voice and path
+    QString info = getVoiceInfo(getSetting(eVOICE)->current().toString(),getSetting(eSERVERPATH)->current().toString());
+    getSetting(eVOICEDESC)->setCurrent(info);
+}
+
+void TTSFestival::clearVoiceDescription()
+{
+    getSetting(eVOICEDESC)->setCurrent("");
+}
+
+void TTSFestival::updateVoiceList()
+{
+   QStringList voiceList = getVoiceList(getSetting(eSERVERPATH)->current().toString());
+   getSetting(eVOICE)->setList(voiceList);
+   if(voiceList.size() > 0) getSetting(eVOICE)->setCurrent(voiceList.at(0));
+   else getSetting(eVOICE)->setCurrent("");
+}
+
+void TTSFestival::startServer(QString path)
+{
+    if(!configOk())
+        return;
+
+    if(path == "")
+        path = RbSettings::subValue("festival-server",RbSettings::TtsPath).toString();
+
+    serverProcess.start(QString("%1 --server").arg(path));
+    serverProcess.waitForStarted();
+
+    queryServer("(getpid)",300,path);
+    if(serverProcess.state() == QProcess::Running)
+        qDebug() << "Festival is up and running";
+    else
+        qDebug() << "Festival failed to start";
+}
+
+void TTSFestival::ensureServerRunning(QString path)
+{
+    if(serverProcess.state() != QProcess::Running)
+    {
+        startServer(path);
+    }
+}
+
+bool TTSFestival::start(QString* errStr)
+{
+    (void) errStr;
+    ensureServerRunning();
+    if (!RbSettings::subValue("festival",RbSettings::TtsVoice).toString().isEmpty())
+        queryServer(QString("(voice.select '%1)")
+        .arg(RbSettings::subValue("festival", RbSettings::TtsVoice).toString()));
+
+    return true;
+}
+
+bool TTSFestival::stop()
+{
+    serverProcess.terminate();
+    serverProcess.kill();
+
+    return true;
+}
+
+TTSStatus TTSFestival::voice(QString text, QString wavfile, QString* errStr)
+{
+    qDebug() << text << "->" << wavfile;
+
+    QString path = RbSettings::subValue("festival-client",RbSettings::TtsPath).toString();
+    QString cmd = QString("%1 --server localhost --otype riff --ttw --withlisp --output \"%2\" - ").arg(path).arg(wavfile);
+    qDebug() << cmd;
+
+    QProcess clientProcess;
+    clientProcess.start(cmd);
+    clientProcess.write(QString("%1.\n").arg(text).toAscii());
+    clientProcess.waitForBytesWritten();
+    clientProcess.closeWriteChannel();
+    clientProcess.waitForReadyRead();
+    QString response = clientProcess.readAll();
+    response = response.trimmed();
+    if(!response.contains("Utterance"))
+    {
+        qDebug() << "Could not voice string: " << response;
+        *errStr = tr("engine could not voice string");
+        return Warning;
+        /* do not stop the voicing process because of a single string
+        TODO: needs proper settings */
+    }
+    clientProcess.closeReadChannel(QProcess::StandardError);
+    clientProcess.closeReadChannel(QProcess::StandardOutput);
+    clientProcess.terminate();
+    clientProcess.kill();
+
+    return NoError;
+}
+
+bool TTSFestival::configOk()
+{
+    QString serverPath = RbSettings::subValue("festival-server",RbSettings::TtsPath).toString();
+    QString clientPath = RbSettings::subValue("festival-client",RbSettings::TtsPath).toString();
+
+    bool ret = QFileInfo(serverPath).isExecutable() &&
+        QFileInfo(clientPath).isExecutable();
+    if(RbSettings::subValue("festival",RbSettings::TtsVoice).toString().size() > 0 && voices.size() > 0)
+        ret = ret && (voices.indexOf(RbSettings::subValue("festival",RbSettings::TtsVoice).toString()) != -1);
+    return ret;
+}
+
+QStringList TTSFestival::getVoiceList(QString path)
+{
+    if(!configOk())
+        return QStringList();
+
+    if(voices.size() > 0)
+    {
+        qDebug() << "Using voice cache";
+        return voices;
+    }
+
+    QString response = queryServer("(voice.list)",3000,path);
+
+    // get the 2nd line. It should be (<voice_name>, <voice_name>)
+    response = response.mid(response.indexOf('\n') + 1, -1);
+    response = response.left(response.indexOf('\n')).trimmed();
+
+    voices = response.mid(1, response.size()-2).split(' ');
+
+    voices.sort();
+    if (voices.size() == 1 && voices[0].size() == 0)
+        voices.removeAt(0);
+    if (voices.size() > 0)
+        qDebug() << "Voices: " << voices;
+    else
+        qDebug() << "No voices.";
+
+    return voices;
+}
+
+QString TTSFestival::getVoiceInfo(QString voice,QString path)
+{
+    if(!configOk())
+        return "";
+
+    if(!getVoiceList().contains(voice))
+        return "";
+
+    if(voiceDescriptions.contains(voice))
+        return voiceDescriptions[voice];
+
+    QString response = queryServer(QString("(voice.description '%1)").arg(voice), 3000,path);
+
+    if (response == "")
+    {
+        voiceDescriptions[voice]=tr("No description available");
+    }
+    else
+    {
+        response = response.remove(QRegExp("(description \"*\")", Qt::CaseInsensitive, QRegExp::Wildcard));
+        qDebug() << "voiceInfo w/o descr: " << response;
+        response = response.remove(')');
+        QStringList responseLines = response.split('(', QString::SkipEmptyParts);
+        responseLines.removeAt(0); // the voice name itself
+
+        QString description;
+        foreach(QString line, responseLines)
+        {
+            line = line.remove('(');
+            line = line.simplified();
+
+            line[0] = line[0].toUpper(); // capitalize the key
+
+            int firstSpace = line.indexOf(' ');
+            if (firstSpace > 0)
+            {
+                line = line.insert(firstSpace, ':'); // add a colon between the key and the value
+                line[firstSpace+2] = line[firstSpace+2].toUpper(); // capitalize the value
+            }
+
+            description += line + "\n";
+        }
+        voiceDescriptions[voice] = description.trimmed();
+    }
+
+    return voiceDescriptions[voice];
+}
+
+QString TTSFestival::queryServer(QString query, int timeout,QString path)
+{
+    if(!configOk())
+        return "";
+
+    // this operation could take some time
+    emit busy();
+
+    ensureServerRunning(path);
+
+    qDebug() << "queryServer with " << query;
+    QString response;
+
+    QDateTime endTime;
+    if(timeout > 0)
+        endTime = QDateTime::currentDateTime().addMSecs(timeout);
+
+    /* Festival is *extremely* unreliable. Although at this
+     * point we are sure that SIOD is accepting commands,
+     * we might end up with an empty response. Hence, the loop.
+     */
+    while(true)
+    {
+        QCoreApplication::processEvents(QEventLoop::AllEvents, 50);
+        QTcpSocket socket;
+
+        socket.connectToHost("localhost", 1314);
+        socket.waitForConnected();
+
+        if(socket.state() == QAbstractSocket::ConnectedState)
+        {
+            socket.write(QString("%1\n").arg(query).toAscii());
+            socket.waitForBytesWritten();
+            socket.waitForReadyRead();
+
+            response = socket.readAll().trimmed();
+
+            if (response != "LP" && response != "")
+                break;
+        }
+        socket.abort();
+        socket.disconnectFromHost();
+
+        if(timeout > 0 && QDateTime::currentDateTime() >= endTime)
+        {
+            emit busyEnd();
+            return "";
+        }
+        /* make sure we wait a little as we don't want to flood the server with requests */
+        QDateTime tmpEndTime = QDateTime::currentDateTime().addMSecs(500);
+        while(QDateTime::currentDateTime() < tmpEndTime)
+            QCoreApplication::processEvents(QEventLoop::AllEvents);
+    }
+    if(response == "nil")
+    {
+        emit busyEnd();
+        return "";
+    }
+
+    QStringList lines = response.split('\n');
+    if(lines.size() > 2)
+    {
+        lines.removeFirst();
+        lines.removeLast();
+    }
+    else
+        qDebug() << "Response too short: " << response;
+
+    emit busyEnd();
+    return lines.join("\n");
+
+}
+