File indexing completed on 2024-04-28 04:43:20

 /*
     Copyright (C) 2007-2008 Tanguy Krotoff <tkrotoff@gmail.com>
     Copyright (C) 2008 Lukas Durfina <lukas.durfina@gmail.com>
     Copyright (C) 2009 Fathi Boudra <fabo@kde.org>
     Copyright (C) 2009-2011 vlc-phonon AUTHORS <kde-multimedia@kde.org>
     Copyright (C) 2011-2018 Harald Sitter <sitter@kde.org>
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.
 
     This library 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
     Lesser General Public License for more details.
 
     You should have received a copy of the GNU Lesser General Public
     License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "mediacontroller.h"
 
 #include <phonon/GlobalDescriptionContainer>
 
 #include <QTimer>
 
 #include "utils/debug.h"
 #include "utils/libvlc.h"
 #include "mediaplayer.h"
 
 namespace Phonon {
 namespace VLC {
 
 #ifdef __GNUC__
 #warning titles and chapters not covered by globaldescriptioncontainer!!
 #endif
 
 MediaController::MediaController()
     : m_subtitleAutodetect(true)
     , m_subtitleEncoding("UTF-8")
     , m_subtitleFontChanged(false)
     , m_player(0)
     , m_refreshTimer(new QTimer(dynamic_cast<QObject *>(this)))
     , m_attemptingAutoplay(false)
 {
     GlobalSubtitles::instance()->register_(this);
     GlobalAudioChannels::instance()->register_(this);
     resetMembers();
 }
 
 MediaController::~MediaController()
 {
     GlobalSubtitles::instance()->unregister_(this);
     GlobalAudioChannels::instance()->unregister_(this);
 }
 
 bool MediaController::hasInterface(Interface iface) const
 {
     switch (iface) {
     case AddonInterface::NavigationInterface:
         return true;
         break;
     case AddonInterface::ChapterInterface:
         return true;
         break;
     case AddonInterface::AngleInterface:
         return false;
         break;
     case AddonInterface::TitleInterface:
         return true;
         break;
     case AddonInterface::SubtitleInterface:
         return true;
         break;
     case AddonInterface::AudioChannelInterface:
         return true;
         break;
     }
 
     warning() << "Interface" << iface << "is not supported by Phonon VLC :(";
     return false;
 }
 
 QVariant MediaController::interfaceCall(Interface iface, int i_command, const QList<QVariant> & arguments)
 {
     DEBUG_BLOCK;
     switch (iface) {
     case AddonInterface::ChapterInterface:
         switch (static_cast<AddonInterface::ChapterCommand>(i_command)) {
         case AddonInterface::availableChapters:
             return availableChapters();
         case AddonInterface::chapter:
             return currentChapter();
         case AddonInterface::setChapter:
             if (arguments.isEmpty() || !arguments.first().canConvert(QVariant::Int)) {
                 error() << Q_FUNC_INFO << "arguments invalid";
                 return false;
             }
             setCurrentChapter(arguments.first().toInt());
             return true;
         }
         break;
     case AddonInterface::TitleInterface:
         switch (static_cast<AddonInterface::TitleCommand>(i_command)) {
         case AddonInterface::availableTitles:
             return availableTitles();
         case AddonInterface::title:
             return currentTitle();
         case AddonInterface::setTitle:
             if (arguments.isEmpty() || !arguments.first().canConvert(QVariant::Int)) {
                 error() << Q_FUNC_INFO << "arguments invalid";
                 return false;
             }
             setCurrentTitle(arguments.first().toInt());
             return true;
         case AddonInterface::autoplayTitles:
             return autoplayTitles();
         case AddonInterface::setAutoplayTitles:
             if (arguments.isEmpty() || !arguments.first().canConvert(QVariant::Bool)) {
                 error() << Q_FUNC_INFO << " arguments invalid";
                 return false;
             }
             setAutoplayTitles(arguments.first().toBool());
             return true;
         }
         break;
     case AddonInterface::AngleInterface:
         warning() << "AddonInterface::AngleInterface not supported!";
         break;
     case AddonInterface::SubtitleInterface:
         switch (static_cast<AddonInterface::SubtitleCommand>(i_command)) {
         case AddonInterface::availableSubtitles:
             return QVariant::fromValue(availableSubtitles());
         case AddonInterface::currentSubtitle:
             return QVariant::fromValue(currentSubtitle());
         case AddonInterface::setCurrentSubtitle:
             if (arguments.isEmpty() || !arguments.first().canConvert<SubtitleDescription>()) {
                 error() << Q_FUNC_INFO << "arguments invalid";
                 return false;
             }
             setCurrentSubtitle(arguments.first().value<SubtitleDescription>());
             return true;
         case AddonInterface::setCurrentSubtitleFile:
             if (arguments.isEmpty() || !arguments.first().canConvert<QUrl>()) {
                 error() << Q_FUNC_INFO << " arguments invalid";
                 return false;
             }
             setCurrentSubtitleFile(arguments.first().value<QUrl>());
         case AddonInterface::subtitleAutodetect:
             return QVariant::fromValue(subtitleAutodetect());
         case AddonInterface::setSubtitleAutodetect:
             if (arguments.isEmpty() || !arguments.first().canConvert<bool>()) {
                 error() << Q_FUNC_INFO << " arguments invalid";
                 return false;
             }
             setSubtitleAutodetect(arguments.first().value<bool>());
             return true;
         case AddonInterface::subtitleEncoding:
             return subtitleEncoding();
         case AddonInterface::setSubtitleEncoding:
             if (arguments.isEmpty() || !arguments.first().canConvert<QString>()) {
                 error() << Q_FUNC_INFO << " arguments invalid";
                 return false;
             }
             setSubtitleEncoding(arguments.first().value<QString>());
             return true;
         case AddonInterface::subtitleFont:
             return subtitleFont();
         case AddonInterface::setSubtitleFont:
             if (arguments.isEmpty() || !arguments.first().canConvert<QFont>()) {
                 error() << Q_FUNC_INFO << " arguments invalid";
                 return false;
             }
             setSubtitleFont(arguments.first().value<QFont>());
             return true;
         }
         break;
     case AddonInterface::AudioChannelInterface:
         switch (static_cast<AddonInterface::AudioChannelCommand>(i_command)) {
         case AddonInterface::availableAudioChannels:
             return QVariant::fromValue(availableAudioChannels());
         case AddonInterface::currentAudioChannel:
             return QVariant::fromValue(currentAudioChannel());
         case AddonInterface::setCurrentAudioChannel:
             if (arguments.isEmpty() || !arguments.first().canConvert<AudioChannelDescription>()) {
                 error() << Q_FUNC_INFO << "arguments invalid";
                 return false;
             }
             setCurrentAudioChannel(arguments.first().value<AudioChannelDescription>());
             return true;
         }
         break;
     }
 
     error() << Q_FUNC_INFO << "unsupported AddonInterface::Interface:" << iface;
 
     return QVariant();
 }
 
 void MediaController::resetMediaController()
 {
     resetMembers();
     emit availableAudioChannelsChanged();
     emit availableSubtitlesChanged();
     emit availableTitlesChanged(0);
     emit availableChaptersChanged(0);
 }
 
 void MediaController::resetMembers()
 {
     m_currentAudioChannel = Phonon::AudioChannelDescription();
     GlobalAudioChannels::self->clearListFor(this);
 
     m_currentSubtitle = Phonon::SubtitleDescription();
     GlobalSubtitles::instance()->clearListFor(this);
 
     m_currentChapter = 0;
     m_availableChapters = 0;
 
     m_currentTitle = 1;
     m_availableTitles = 0;
 
     m_attemptingAutoplay = false;
 }
 
 // ----------------------------- Audio Channel ------------------------------ //
 void MediaController::setCurrentAudioChannel(const Phonon::AudioChannelDescription &audioChannel)
 {
     const int localIndex = GlobalAudioChannels::instance()->localIdFor(this, audioChannel.index());
     if (!m_player->setAudioTrack(localIndex))
         error() << "libVLC:" << LibVLC::errorMessage();
     else
         m_currentAudioChannel = audioChannel;
 }
 
 QList<Phonon::AudioChannelDescription> MediaController::availableAudioChannels() const
 {
     return GlobalAudioChannels::instance()->listFor(this);
 }
 
 Phonon::AudioChannelDescription MediaController::currentAudioChannel() const
 {
     return m_currentAudioChannel;
 }
 
 void MediaController::refreshAudioChannels()
 {
     GlobalAudioChannels::instance()->clearListFor(this);
 
     const int currentChannelId = m_player->audioTrack();
 
     int idCount = 0;
     VLC_FOREACH_TRACK(it, m_player->audioTrackDescription()) {
         idCount= it->i_id;
         GlobalAudioChannels::instance()->add(this, idCount, QString::fromUtf8(it->psz_name), "");
         if (idCount == currentChannelId) {
 #ifdef __GNUC__
 #warning GlobalDescriptionContainer does not allow reverse resolution from local to descriptor!
 #endif
             const QList<AudioChannelDescription> list = GlobalAudioChannels::instance()->listFor(this);
             foreach (const AudioChannelDescription &descriptor, list) {
                 if (descriptor.name() == QString::fromUtf8(it->psz_name)) {
                     m_currentAudioChannel = descriptor;
                 }
             }
         }
         ++idCount;
     }
 
     emit availableAudioChannelsChanged();
 }
 
 // -------------------------------- Subtitle -------------------------------- //
 void MediaController::setCurrentSubtitle(const Phonon::SubtitleDescription &subtitle)
 {
     DEBUG_BLOCK;
     QString type = subtitle.property("type").toString();
 
     debug() << subtitle;
 
     if (type == "file") {
         QString filename = subtitle.property("name").toString();
         if (!filename.isEmpty()) {
             if (!m_player->setSubtitle(filename))
                 error() << "libVLC:" << LibVLC::errorMessage();
             else
                 m_currentSubtitle = subtitle;
 
             // There is no subtitle event inside libvlc so let's send our own event...
             GlobalSubtitles::instance()->add(this, m_currentSubtitle);
             emit availableSubtitlesChanged();
         }
     } else {
         const int localIndex = GlobalSubtitles::instance()->localIdFor(this, subtitle.index());
         debug () << "localid" << localIndex;
         if (!m_player->setSubtitle(localIndex))
             error() << "libVLC:" << LibVLC::errorMessage();
         else
             m_currentSubtitle = subtitle;
     }
 }
 
 void MediaController::setCurrentSubtitleFile(const QUrl &url)
 {
     const QString file = url.toLocalFile();
     if (!m_player->setSubtitle(file))
         error() << "libVLC failed to set subtitle file:" << LibVLC::errorMessage();
     // Unfortunately the addition of SPUs does not trigger an event in the
     // VLC mediaplayer, yet the actual addition to the descriptor is async.
     // So for the time being our best shot at getting an up-to-date list of SPUs
     // is shooting in the dark and hoping we hit something.
     // Refresha after 1, 2 and 5 seconds. If we have no updated list after 5
     // seconds we are out of luck.
     // https://trac.videolan.org/vlc/ticket/9796
     QObject *mediaObject = dynamic_cast<QObject *>(this); // MediaObject : QObject, MediaController
     m_refreshTimer->singleShot(1 * 1000, mediaObject, SLOT(refreshDescriptors()));
     m_refreshTimer->singleShot(2 * 1000, mediaObject, SLOT(refreshDescriptors()));
     m_refreshTimer->singleShot(5 * 1000, mediaObject, SLOT(refreshDescriptors()));
 }
 
 QList<Phonon::SubtitleDescription> MediaController::availableSubtitles() const
 {
     return GlobalSubtitles::instance()->listFor(this);
 }
 
 Phonon::SubtitleDescription MediaController::currentSubtitle() const
 {
     return m_currentSubtitle;
 }
 
 void MediaController::refreshSubtitles()
 {
     DEBUG_BLOCK;
     GlobalSubtitles::instance()->clearListFor(this);
 
     const int currentSubtitleId = m_player->subtitle();
 
     VLC_FOREACH_TRACK(it, m_player->videoSubtitleDescription()) {
         debug() << "found subtitle" << it->psz_name << "[" << it->i_id << "]";
         GlobalSubtitles::instance()->add(this, it->i_id, QString::fromUtf8(it->psz_name), "");
         if (it->i_id == currentSubtitleId) {
 #ifdef __GNUC__
 #warning GlobalDescriptionContainer does not allow reverse resolution from local to descriptor!
 #endif
             const QList<SubtitleDescription> list = GlobalSubtitles::instance()->listFor(this);
             foreach (const SubtitleDescription &descriptor, list) {
                 if (descriptor.name() == QString::fromUtf8(it->psz_name)) {
                     m_currentSubtitle = descriptor;
                 }
             }
         }
     }
 
     emit availableSubtitlesChanged();
 }
 
 bool MediaController::subtitleAutodetect() const
 {
     return m_subtitleAutodetect;
 }
 
 void MediaController::setSubtitleAutodetect(bool enabled)
 {
     m_subtitleAutodetect = enabled;
 }
 
 QString MediaController::subtitleEncoding() const
 {
     return m_subtitleEncoding;
 }
 
 void MediaController::setSubtitleEncoding(const QString &encoding)
 {
     m_subtitleEncoding = encoding;
 }
 
 QFont MediaController::subtitleFont() const
 {
     return m_subtitleFont;
 }
 
 void MediaController::setSubtitleFont(const QFont &font)
 {
     m_subtitleFontChanged = true;
     m_subtitleFont = font;
 }
 
 // --------------------------------- Title ---------------------------------- //
 void MediaController::setCurrentTitle(int title)
 {
     DEBUG_BLOCK;
     m_currentTitle = title;
 
     switch (source().discType()) {
     case Cd:
         m_player->setCdTrack(title);
         return;
     case Dvd:
     case Vcd:
     case BluRay:
         m_player->setTitle(title);
         return;
     case NoDisc:
         warning() << "Current media source is not a CD, DVD or VCD!";
         return;
     }
 
     warning() << "MediaSource does not support setting of tile in this version of Phonon VLC!"
               << "Type is" << source().discType();
 }
 
 int MediaController::availableTitles() const
 {
     return m_availableTitles;
 }
 
 int MediaController::currentTitle() const
 {
     return m_currentTitle;
 }
 
 void MediaController::setAutoplayTitles(bool autoplay)
 {
     m_autoPlayTitles = autoplay;
 }
 
 bool MediaController::autoplayTitles() const
 {
     return m_autoPlayTitles;
 }
 
 void MediaController::refreshTitles()
 {
     m_availableTitles = 0;
 
     SharedTitleDescriptions list = m_player->titleDescription();
     for (unsigned int i = 0; i < list->size(); ++i) {
         ++m_availableTitles;
         emit availableTitlesChanged(m_availableTitles);
     }
 }
 
 // -------------------------------- Chapter --------------------------------- //
 void MediaController::setCurrentChapter(int chapter)
 {
     m_currentChapter = chapter;
     m_player->setChapter(chapter);
 }
 
 int MediaController::availableChapters() const
 {
     return m_availableChapters;
 }
 
 int MediaController::currentChapter() const
 {
     return m_currentChapter;
 }
 
 // We need to rebuild available chapters when title is changed
 void MediaController::refreshChapters(int title)
 {
     m_availableChapters = 0;
 
     // Get the description of available chapters for specific title
     SharedChapterDescriptions list = m_player->videoChapterDescription(title);
     for (unsigned int i = 0; i < list->size(); ++i) {
         ++m_availableChapters;
         emit availableChaptersChanged(m_availableChapters);
     }
 }
 
 // --------------------------------- Angle ---------------------------------- //
 //                          NOT SUPPORTED IN LIBVLC                           //
 
 } // namespace VLC
 } // namespace Phonon