262 lines
7.5 KiB
C++
262 lines
7.5 KiB
C++
/***************************************************************************
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* Copyright (C) 2003-2005 by Mark Kretschmann <markey@web.de> *
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* Copyright (C) 2005 by Jakub Stachowski <qbast@go2.pl> *
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* Portions Copyright (C) 2006 Paul Cifarelli <paul@cifarelli.net> *
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* *
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* This program 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 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Steet, Fifth Floor, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef AMAROK_GSTENGINE_H
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#define AMAROK_GSTENGINE_H
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#include <gst/gst.h>
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#include <QFuture>
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#include <QHash>
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#include <QList>
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#include <QString>
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#include <QStringList>
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#include <QTimerEvent>
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#include <memory>
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#include "bufferconsumer.h"
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#include "core/timeconstants.h"
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#include "enginebase.h"
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class QTimer;
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class QTimerEvent;
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class Application;
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class Console;
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class DeviceFinder;
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class GstEngineDebug;
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class GstEnginePipeline;
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class TaskManager;
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#ifdef Q_OS_DARWIN
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struct _GTlsDatabase;
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typedef struct _GTlsDatabase GTlsDatabase;
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#endif
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/**
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* @class GstEngine
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* @short GStreamer engine plugin
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* @author Mark Kretschmann <markey@web.de>
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*/
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class GstEngine : public Engine::Base, public BufferConsumer {
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Q_OBJECT
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public:
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GstEngine(Application* app);
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~GstEngine();
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struct OutputDetails {
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QString description;
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QString icon_name;
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QString gstreamer_plugin_name;
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QVariant device_property_value;
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};
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typedef QList<OutputDetails> OutputDetailsList;
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static const int kAutoSampleRate = -1;
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static const char* kOutFormatDetect;
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static const char* kOutFormatS16LE;
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static const char* kOutFormatF32LE;
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static const char* kSettingsGroup;
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static const char* kSettingFormat;
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static const char* kAutoSink;
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bool Init();
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void EnsureInitialised() { initialising_.waitForFinished(); }
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void InitialiseGstreamer();
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int AddBackgroundStream(const QUrl& url);
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void StopBackgroundStream(int id);
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void SetBackgroundStreamVolume(int id, int volume);
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qint64 position_nanosec() const;
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qint64 length_nanosec() const;
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Engine::State state() const;
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const Engine::Scope& scope(int chunk_length);
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OutputDetailsList GetOutputsList() const;
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GstElement* CreateElement(const QString& factoryName, GstElement* bin = 0);
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// BufferConsumer
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void ConsumeBuffer(GstBuffer* buffer, int pipeline_id);
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public slots:
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void StartPreloading(const MediaPlaybackRequest& req, bool force_stop_at_end,
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qint64 beginning_nanosec, qint64 end_nanosec);
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bool Load(const MediaPlaybackRequest&, Engine::TrackChangeFlags change,
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bool force_stop_at_end, quint64 beginning_nanosec,
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qint64 end_nanosec);
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bool Play(quint64 offset_nanosec);
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void Stop(bool stop_after = false);
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void Pause();
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void Unpause();
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void Seek(quint64 offset_nanosec);
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/** Set whether equalizer is enabled */
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void SetEqualizerEnabled(bool);
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/** Set equalizer preamp and gains, range -100..100. Gains are 10 values. */
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void SetEqualizerParameters(int preamp, const QList<int>& bandGains);
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/** Set Stereo balance, range -1.0f..1.0f */
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void SetStereoBalance(float value);
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void ReloadSettings();
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void AddBufferConsumer(BufferConsumer* consumer);
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void RemoveBufferConsumer(BufferConsumer* consumer);
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#ifdef Q_OS_DARWIN
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GTlsDatabase* tls_database() const { return tls_database_; }
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#endif
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void NewDebugConsole(Console* console);
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protected:
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void SetVolumeSW(uint percent);
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void timerEvent(QTimerEvent*);
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private:
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// Used for debug purposes only.
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friend class GstEngineDebug;
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std::shared_ptr<GstEnginePipeline> GetCurrentPipeline() {
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return current_pipeline_;
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}
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private slots:
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void EndOfStreamReached(int pipeline_id, bool has_next_track);
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void HandlePipelineError(int pipeline_id, const QString& message, int domain,
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int error_code);
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void NewMetaData(int pipeline_id, const Engine::SimpleMetaBundle& bundle);
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void AddBufferToScope(GstBuffer* buf, int pipeline_id);
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void FadeoutFinished();
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void FadeoutPauseFinished();
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void SeekNow();
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void BackgroundStreamFinished();
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void BackgroundStreamPlayDone(QFuture<GstStateChangeReturn>, int);
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void PlayDone(QFuture<GstStateChangeReturn> future, const quint64, const int);
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void BufferingStarted();
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void BufferingProgress(int percent);
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void BufferingFinished();
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private:
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struct PluginDetails {
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QString name;
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QString description;
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};
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typedef QList<PluginDetails> PluginDetailsList;
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PluginDetailsList GetPluginList(const QString& classname) const;
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void StartFadeout();
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void StartFadeoutPause();
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void StartTimers();
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void StopTimers();
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std::shared_ptr<GstEnginePipeline> CreatePipeline();
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std::shared_ptr<GstEnginePipeline> CreatePipeline(
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const MediaPlaybackRequest& req, qint64 end_nanosec);
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void UpdateScope(int chunk_length);
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int AddBackgroundStream(std::shared_ptr<GstEnginePipeline> pipeline);
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bool IsCurrentPipeline(int id);
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private:
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static const qint64 kTimerIntervalNanosec = 1000 * kNsecPerMsec; // 1s
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static const qint64 kPreloadGapNanosec = 2000 * kNsecPerMsec; // 2s
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static const qint64 kSeekDelayNanosec = 100 * kNsecPerMsec; // 100msec
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static const char* kHypnotoadPipeline;
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static const char* kEnterprisePipeline;
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TaskManager* task_manager_;
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int buffering_task_id_;
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QFuture<void> initialising_;
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QString sink_;
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QVariant device_;
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std::shared_ptr<GstEnginePipeline> current_pipeline_;
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std::shared_ptr<GstEnginePipeline> fadeout_pipeline_;
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std::shared_ptr<GstEnginePipeline> fadeout_pause_pipeline_;
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QUrl preloaded_url_;
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QList<BufferConsumer*> buffer_consumers_;
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GstBuffer* latest_buffer_;
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bool equalizer_enabled_;
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int equalizer_preamp_;
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QList<int> equalizer_gains_;
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float stereo_balance_;
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bool rg_enabled_;
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int rg_mode_;
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float rg_preamp_;
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bool rg_compression_;
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qint64 buffer_duration_nanosec_;
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int buffer_min_fill_;
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bool mono_playback_;
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int sample_rate_;
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QString format_;
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mutable bool can_decode_success_;
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mutable bool can_decode_last_;
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// Hack to stop seeks happening too often
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QTimer* seek_timer_;
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bool waiting_to_seek_;
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quint64 seek_pos_;
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int timer_id_;
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int next_element_id_;
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QHash<int, std::shared_ptr<GstEnginePipeline>> background_streams_;
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bool is_fading_out_to_pause_;
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bool has_faded_out_;
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int scope_chunk_;
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bool have_new_buffer_;
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int scope_chunks_;
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QList<DeviceFinder*> device_finders_;
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#ifdef Q_OS_DARWIN
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GTlsDatabase* tls_database_;
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#endif
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};
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Q_DECLARE_METATYPE(GstEngine::OutputDetails)
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#endif /*AMAROK_GSTENGINE_H*/
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