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Viewing changes to programs/mythfrontend/playbackboxhelper.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Mario Limonciello, Dave Walker, Mario Limonciello
  • Date: 2010-02-27 14:33:45 UTC
  • mfrom: (1.1.48 upstream)
  • Revision ID: james.westby@ubuntu.com-20100227143345-qye52374g4b4caf9
Tags: 0.23.0~trunk23623-0ubuntu1
https://launchpad.net/bugs/524822
https://launchpad.net/bugs/527288
[ Dave Walker ]
* debian/control:  Added quilt as a build-depends, primarily
  for karmic builds.

[ Mario Limonciello ]
* New checkout (r23623).
  - Fixes audio issues w/ ac3 audio.
* debian/patches/36_setgroups_too:
  - Set the right args for setgroups. (LP: #524822)
* debian/rules:
  - Explicitly set all shell scripts executable.  Fixes problems on < lucid
    builds.
* debian/control:
  - Correct the replaces statements. (LP: #527288)

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Lines of Context:
programs/mythfrontend/playbackboxhelper.cpp
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        else if (me->Message() == "GET_PREVIEW")
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        {
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            ProgramInfo evinfo;
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            if (evinfo.FromStringList(me->ExtraDataList(), 0))
 
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            if (evinfo.FromStringList(me->ExtraDataList(), 0) &&
 
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                evinfo.IsFileReadable())
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            {
 
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                // Note: IsFileReadable() implicitly calls GetPlaybackURL()
 
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                // when necessary, so we might as well update the pathname
 
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                // in the PBB cache to avoid calling this again...
 
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                QStringList list;
 
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                list.push_back(evinfo.MakeUniqueKey());
 
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                list.push_back(evinfo.pathname);            
 
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                MythEvent *e0 = new MythEvent("SET_PLAYBACK_URL", list);
 
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                QCoreApplication::postEvent(m_pbh.m_listener, e0);
 
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                QString fn = m_pbh.GeneratePreviewImage(evinfo);
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                if (!fn.isEmpty())
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                {
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            QStringList list;
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            list.push_back(evinfo.MakeUniqueKey());
 
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            list.push_back(evinfo.pathname);            
 
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            MythEvent *e0 = new MythEvent("SET_PLAYBACK_URL", list);
 
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            QCoreApplication::postEvent(m_pbh.m_listener, e0);
 
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            list.clear();
 
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            list.push_back(evinfo.MakeUniqueKey());
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            list.push_back(QString::number((int)cat));
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            list.push_back(QString::number((int)availableStatus));
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            list.push_back(QString::number(evinfo.filesize));
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    if (pginfo.availableStatus == asPendingDelete)
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        return QString();
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    QString filename = pginfo.GetPlaybackURL() + ".png";
 
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    QString filename = pginfo.pathname + ".png";
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    // If someone is asking for this preview it must be on screen
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    // and hence higher priority than anything else we may have
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        uint attempts = IncPreviewGeneratorAttempts(filename);
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        if (attempts < PreviewGenState::maxAttempts)
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        {
 
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            VERBOSE(VB_PLAYBACK, LOC +
 
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                    QString("Requesting preview for '%1'")
 
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                    .arg(filename));
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            PreviewGenerator::Mode mode =
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                (PreviewGenerator::Mode) m_previewGeneratorMode;
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            SetPreviewGenerator(filename, new PreviewGenerator(&pginfo, mode));
 
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            PreviewGenerator *pg = new PreviewGenerator(&pginfo, mode);
 
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            while (!SetPreviewGenerator(filename, pg)) usleep(50000);
 
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            VERBOSE(VB_PLAYBACK, LOC +
 
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                    QString("Requested preview for '%1'")
 
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                    .arg(filename));
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        }
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        else if (attempts == PreviewGenState::maxAttempts)
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        {
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                    .arg(filename).arg(PreviewGenState::maxAttempts));
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        }
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    }
 
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    else if (bookmark_updated || !preview_exists)
 
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    {
 
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        VERBOSE(VB_PLAYBACK, LOC +
 
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                "Not requesting preview as it "
 
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                "is already being generated");
 
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    }
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    UpdatePreviewGeneratorThreads();
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bool PlaybackBoxHelper::SetPreviewGenerator(const QString &xfn, PreviewGenerator *g)
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{
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    QString fn = xfn.mid(max(xfn.lastIndexOf('/') + 1,0));
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    QMutexLocker locker(&m_previewGeneratorLock);
 
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    if (!m_previewGeneratorLock.tryLock())
 
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        return false;
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    if (!g)
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    {
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        m_previewGeneratorRunning = max(0, (int)m_previewGeneratorRunning - 1);
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        PreviewMap::iterator it = m_previewGenerator.find(fn);
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        if (it == m_previewGenerator.end())
 
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        {
 
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            m_previewGeneratorLock.unlock();
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            return false;
 
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        }
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        (*it).gen        = NULL;
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        (*it).genStarted = false;
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        (*it).blockRetryUntil =
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            QDateTime::currentDateTime().addSecs((*it).lastBlockTime);
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        m_previewGeneratorLock.unlock();
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        return true;
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    }
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    m_previewGeneratorLock.unlock();
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    IncPreviewGeneratorPriority(xfn);
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    m_previewGeneratorLock.lock();
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    return true;
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}
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void PlaybackBoxHelper::previewThreadDone(const QString &fn, bool &success)
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{
 
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    VERBOSE(VB_PLAYBACK, LOC + QString("Preview for '%1' done").arg(fn));
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    success = SetPreviewGenerator(fn, NULL);
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    UpdatePreviewGeneratorThreads();
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}
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    QString xfn = pginfo->pathname + ".png";
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    QString fn = xfn.mid(max(xfn.lastIndexOf('/') + 1,0));
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    VERBOSE(VB_PLAYBACK, LOC + QString("Preview for '%1' ready")
 
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            .arg(pginfo->pathname));
 
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    m_previewGeneratorLock.lock();
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    PreviewMap::iterator it = m_previewGenerator.find(fn);
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    if (it != m_previewGenerator.end())
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    if (pginfo)
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    {
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        QStringList extra;
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        pginfo->ToStringList(extra);
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        MythEvent *e = new MythEvent("GET_PREVIEW", extra);
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        QCoreApplication::postEvent(m_eventHandler, e);        
 
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        QStringList list;
 
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        list.push_back(pginfo->MakeUniqueKey());
 
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        list.push_back(xfn);
 
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        MythEvent *e = new MythEvent("PREVIEW_READY", list);
 
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        QCoreApplication::postEvent(m_listener, e);        
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    }
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}