158 lines
4.5 KiB
C++
158 lines
4.5 KiB
C++
/* This file is part of Clementine.
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Copyright 2010, 2012-2014, David Sansome <me@davidsansome.com>
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Copyright 2010-2011, 2014, John Maguire <john.maguire@gmail.com>
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Copyright 2011-2012, 2014, Arnaud Bienner <arnaud.bienner@gmail.com>
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Copyright 2011, Paweł Bara <keirangtp@gmail.com>
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Copyright 2014, Alexander Bikadorov <abiku@cs.tu-berlin.de>
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Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CORE_SONGLOADER_H_
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#define CORE_SONGLOADER_H_
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#include <functional>
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#include <memory>
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#include <gst/gst.h>
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#include <QObject>
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#include <QThreadPool>
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#include <QUrl>
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#include "song.h"
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#include "core/tagreaderclient.h"
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#include "musicbrainz/musicbrainzclient.h"
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class CueParser;
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class LibraryBackendInterface;
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class ParserBase;
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class Player;
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class PlaylistParser;
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class PodcastParser;
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class CddaSongLoader;
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class SongLoader : public QObject {
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Q_OBJECT
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public:
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SongLoader(LibraryBackendInterface* library, const Player* player,
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QObject* parent = nullptr);
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~SongLoader();
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enum Result {
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Success,
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Error,
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BlockingLoadRequired,
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};
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static const int kDefaultTimeout;
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const QUrl& url() const { return url_; }
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const SongList& songs() const { return songs_; }
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int timeout() const { return timeout_; }
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void set_timeout(int msec) { timeout_ = msec; }
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// If Success is returned the songs are fully loaded. If BlockingLoadRequired
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// is returned LoadFilenamesBlocking() needs to be called next.
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Result Load(const QUrl& url);
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// Loads the files with only filenames. When finished, songs() contains a
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// complete list of all Song objects, but without metadata. This method is
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// blocking, do not call it from the UI thread.
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void LoadFilenamesBlocking();
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// Completely load songs previously loaded with LoadFilenamesBlocking(). When
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// finished, the Song objects in songs() contain metadata now. This method is
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// blocking, do not call it from the UI thread.
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void LoadMetadataBlocking();
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Result LoadAudioCD();
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signals:
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void AudioCDTracksLoaded();
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void LoadAudioCDFinished(bool success);
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void LoadRemoteFinished();
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private slots:
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void Timeout();
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void StopTypefind();
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#ifdef HAVE_AUDIOCD
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void AudioCDTracksLoadedSlot(const SongList& songs);
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void AudioCDTracksTagsLoaded(const SongList& songs);
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#endif // HAVE_AUDIOCD
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private:
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enum State {
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WaitingForType,
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WaitingForMagic,
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WaitingForData,
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Finished,
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};
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Result LoadLocal(const QString& filename);
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void LoadLocalAsync(const QString& filename);
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void EffectiveSongLoad(Song* song);
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Result LoadLocalPartial(const QString& filename);
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void LoadLocalDirectory(const QString& filename);
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void LoadPlaylist(ParserBase* parser, const QString& filename);
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void AddAsRawStream();
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void LoadRemote();
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bool LoadRemotePlaylist(const QUrl& url);
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// GStreamer callbacks
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static void TypeFound(GstElement* typefind, uint probability, GstCaps* caps,
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void* self);
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static GstPadProbeReturn DataReady(GstPad*, GstPadProbeInfo* buf,
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gpointer self);
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static GstBusSyncReply BusCallbackSync(GstBus*, GstMessage*, gpointer);
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static gboolean BusCallback(GstBus*, GstMessage*, gpointer);
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void StopTypefindAsync(bool success);
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void ErrorMessageReceived(GstMessage* msg);
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void EndOfStreamReached();
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void MagicReady();
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bool IsPipelinePlaying();
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private:
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static QSet<QString> sRawUriSchemes;
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QUrl url_;
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SongList songs_;
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QTimer* timeout_timer_;
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PlaylistParser* playlist_parser_;
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PodcastParser* podcast_parser_;
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CueParser* cue_parser_;
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// For async loads
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std::function<void()> preload_func_;
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int timeout_;
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State state_;
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bool success_;
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ParserBase* parser_;
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QString mime_type_;
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bool is_podcast_;
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QByteArray buffer_;
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LibraryBackendInterface* library_;
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const Player* player_;
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std::shared_ptr<GstElement> pipeline_;
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QThreadPool thread_pool_;
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};
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#endif // CORE_SONGLOADER_H_
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