renderjob.cpp 10.5 KB
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/***************************************************************************
 *   Copyright (C) 2007 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
 *                                                                         *
 *   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 Street, Fifth Floor, Boston, MA  02110-1301  USA          *
 ***************************************************************************/

#include <QtDBus>
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#include <QFile>
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#include <QThread>
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#include "renderjob.h"

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// Can't believe I need to do this to sleep.
class SleepThread : QThread {
public:
    virtual void run() {};
    static void msleep(unsigned long msecs) {
        QThread::msleep(msecs);
    }
};
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static QDBusConnection connection(QLatin1String(""));

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RenderJob::RenderJob(bool erase, const QString &renderer, const QString &profile, const QString &rendermodule, const QString &player, const QString &scenelist, const QString &dest, const QStringList &preargs, const QStringList &args, int in, int out) : QObject(), m_jobUiserver(NULL), m_kdenliveinterface(NULL) {
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    m_scenelist = scenelist;
    m_dest = dest;
    m_player = player;
    m_progress = 0;
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    m_erase = erase;
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    m_renderProcess = new QProcess;
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    m_prog = renderer;
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    m_args << scenelist;
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    if (in != -1) m_args << "in=" + QString::number(in);
    if (out != -1) m_args << "out=" + QString::number(out);
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    m_args << preargs;
    //qDebug()<<"PRE ARGS: "<<preargs;
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    if (scenelist.startsWith("consumer:")) {
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        // Use MLT's producer_consumer, needs a different syntax for profile:
        m_args << "profile=" + profile;
    } else m_args << "-profile" << profile;
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    m_args << "-consumer" << rendermodule + ":" + m_dest << "progress=1" << args;
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    connect(m_renderProcess, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(slotIsOver(int, QProcess::ExitStatus)));
    m_renderProcess->setReadChannel(QProcess::StandardError);
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    // Create a log of every render process.
    m_logfile.setAutoRemove(false);
    m_logfile.setFileTemplate(QDir::tempPath() + "/kdenlive_render.log.XXXXXXXX");
    if (m_logfile.open()) {
        qDebug() << "Writing render log to " << m_logfile.fileName();

    } else {
        qDebug() << "Unable to log to " << m_logfile.fileName();
    }
    m_logstream.setDevice(&m_logfile);
    m_logstream << "Log starting. Dumping contents of " << scenelist << endl;
    QFile file(scenelist);
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        m_logstream << "Unable to read contents of " << scenelist << endl;
    } else {
        m_logstream.flush();
        QTextStream in(&file);
        m_logstream << in.readAll() << endl;
    }
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}


RenderJob::~RenderJob() {
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    if (m_renderProcess) delete m_renderProcess;
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    m_logfile.close();
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}

void RenderJob::slotAbort() {
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    qDebug() << "Kdenlive-render: JOB ABORTED BY USER...";
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    m_renderProcess->kill();
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    if (m_jobUiserver) m_jobUiserver->call("terminate", QString());
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    if (m_erase) {
        QFile f(m_scenelist);
        f.remove();
    }
    QFile f(m_dest);
    f.remove();
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    m_logstream << "Job aborted by user" << endl;
    m_logstream.flush();
    m_logfile.close();
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    qApp->quit();
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}

void RenderJob::receivedStderr() {
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    QString result = QString(m_renderProcess->readAllStandardError()).simplified();
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    m_logstream << "ReceivedStderr from inigo: " << result << endl;
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    result = result.section(" ", -1);
    int pro = result.toInt();
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    if (m_kdenliveinterface && pro > m_progress) {
        m_dbusargs[1] = pro;
        m_kdenliveinterface->callWithArgumentList(QDBus::NoBlock, "setRenderingProgress", m_dbusargs);
    }
    if (m_jobUiserver && pro > m_progress) {
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        m_progress = pro;
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        m_jobUiserver->call("setPercent", (uint) m_progress);
        int seconds = m_startTime.secsTo(QTime::currentTime());
        seconds = seconds * (100 - m_progress) / m_progress;
        m_jobUiserver->call("setDescriptionField", (uint) 1, tr("Remaining time"), QTime(0, 0, seconds).toString("hh:mm:ss"));
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    }
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}

void RenderJob::start() {
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    QDBusConnectionInterface* interface = QDBusConnection::sessionBus().interface();
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    if (interface) {
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        if (!interface->isServiceRegistered("org.kde.JobViewServer")) {
            qDebug() << "No org.kde.JobViewServer registered, trying to start kuiserver";
            m_logstream << "No org.kde.JobViewServer registered, trying to start kuiserver";
            if (QProcess::startDetached("kuiserver")) {
                qDebug() << "Started kuiserver";
                m_logstream << "Started kuiserver";
                // Give it a couple of seconds to start
                QTime t;
                t.start();
                while (!interface->isServiceRegistered("org.kde.JobViewServer") && t.elapsed() < 3000) {
                    SleepThread::msleep(100);   //Sleep 100 ms
                }
            } else {
                qDebug() << "Failed to start kuiserver";
                m_logstream << "Failed to start kuiserver";
            }
        }

        if (interface->isServiceRegistered("org.kde.JobViewServer")) {
            QDBusInterface kuiserver("org.kde.JobViewServer", "/JobViewServer", "org.kde.JobViewServer");
            QDBusReply<QDBusObjectPath> objectPath = kuiserver.call("requestView", "kdenlive", "kdenlive", 1);
            QString reply = ((QDBusObjectPath) objectPath).path();
            m_jobUiserver = new QDBusInterface("org.kde.JobViewServer", reply, "org.kde.JobView");
            if (m_jobUiserver) {
                m_startTime = QTime::currentTime();
                m_jobUiserver->call("setPercent", (uint) 0);
                QDBusReply<QString> reply = m_jobUiserver->call("setInfoMessage", tr("Rendering %1").arg(QFileInfo(m_dest).fileName()));
                m_jobUiserver->call("setDescriptionField", (uint) 0, tr("Rendering to"), m_dest);
                QDBusConnection::sessionBus().connect("org.kde.JobViewServer", reply, "org.kde.JobView", "cancelRequested", this, SLOT(slotAbort()));
            }
        }
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    }
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    QString kdenliveId;
    QDBusConnection connection = QDBusConnection::sessionBus();
    QDBusConnectionInterface *ibus = connection.interface();
    const QStringList services = ibus->registeredServiceNames();
    foreach(const QString &service, services) {
        if (!service.startsWith("org.kde.kdenlive"))
            continue;
        kdenliveId = service;
        break;
    }

    QDBusConnection bus = QDBusConnection::sessionBus();
    m_kdenliveinterface = new QDBusInterface(kdenliveId,
            "/MainWindow",
            "org.kdenlive.MainWindow",
            bus,
            this);

    if (m_kdenliveinterface) {
        m_dbusargs.append(m_dest);
        m_dbusargs.append((int) 0);
        m_kdenliveinterface->callWithArgumentList(QDBus::NoBlock, "setRenderingProgress", m_dbusargs);
    }

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    // Because of the logging, we connect to stderr in all cases.
    connect(m_renderProcess, SIGNAL(readyReadStandardError()), this, SLOT(receivedStderr()));
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    m_renderProcess->start(m_prog, m_args);
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    m_logstream << "Started render process: " << m_prog << " " << m_args.join(" ") << endl;
    qDebug() << "Started render process: " << m_prog << " " << m_args.join(" ");
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}


void RenderJob::slotIsOver(int exitcode, QProcess::ExitStatus status) {
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    if (m_jobUiserver) m_jobUiserver->call("terminate", QString());
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    if (m_erase) {
        QFile f(m_scenelist);
        f.remove();
    }
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    if (status == QProcess::CrashExit) {
        // rendering crashed
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        if (m_kdenliveinterface) {
            m_dbusargs[1] = -2;
            m_kdenliveinterface->callWithArgumentList(QDBus::NoBlock, "setRenderingProgress", m_dbusargs);
        }
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        QStringList args;
        args << "--error" << tr("Rendering of %1 aborted, resulting video will probably be corrupted.").arg(m_dest);
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        m_logstream << "Rendering of " << m_dest << " aborted, resulting video will probably be corrupted." << endl;
        qDebug() << "Rendering of " << m_dest << " aborted, resulting video will probably be corrupted.";
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        QProcess::startDetached("kdialog", args);
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    } else {
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        if (m_kdenliveinterface) {
            m_dbusargs[1] = -1;
            m_kdenliveinterface->callWithArgumentList(QDBus::NoBlock, "setRenderingProgress", m_dbusargs);
        }
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        QDBusConnectionInterface* interface = QDBusConnection::sessionBus().interface();
        if (interface && interface->isServiceRegistered("org.kde.knotify")) {
            QDBusMessage m = QDBusMessage::createMethodCall("org.kde.knotify",
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                             "/Notify",
                             "org.kde.KNotify",
                             "event");
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            int seconds = m_startTime.secsTo(QTime::currentTime());
            QList<QVariant> args;
            args.append(QString("RenderFinished"));   // action name
            args.append(QString("kdenlive"));   // app name
            args.append(QVariantList());   // contexts
            args.append(tr("Rendering of %1 finished in %2").arg(m_dest, QTime(0, 0, seconds).toString("hh:mm:ss")));   // body
            args.append(QByteArray());   // app icon
            QStringList actionList;
            args.append(actionList);   // actions
            qlonglong wid;
            args.append(wid);   // win id
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            m.setArguments(args);
            QDBusMessage replyMsg = QDBusConnection::sessionBus().call(m);
        }
        m_logstream << "Rendering of " << m_dest << " finished" << endl;
        qDebug() << "Rendering of " << m_dest << " finished";
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        if (m_player != "-") {
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            m_logstream << "Starting player" << endl;
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            QStringList args;
            args << m_dest;
            QProcess::startDetached(m_player, args);
        }
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    }
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    qApp->quit();
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}

#include "renderjob.moc"