208 lines
6.5 KiB
C++
208 lines
6.5 KiB
C++
/***************************************************************************
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* Copyright (C) 2017-2018 Jonas Kvinge <jonas@jkvinge.net> *
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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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* 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 GSTENGINE_H
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#define GSTENGINE_H
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#include "config.h"
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#include <memory>
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#include <stdbool.h>
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#include <gst/gst.h>
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#include <QtGlobal>
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#include <QObject>
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#include <QFuture>
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#include <QByteArray>
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#include <QList>
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#include <QVariant>
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#include <QString>
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#include <QUrl>
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#include <QTimer>
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#include <QTimerEvent>
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#include "core/timeconstants.h"
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#include "engine_fwd.h"
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#include "enginebase.h"
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#include "gstbufferconsumer.h"
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class TaskManager;
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class GstEnginePipeline;
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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 GstBufferConsumer {
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Q_OBJECT
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public:
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GstEngine(TaskManager *task_manager);
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~GstEngine();
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bool Init();
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Engine::State state() const;
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void StartPreloading(const QUrl &url, bool force_stop_at_end, qint64 beginning_nanosec, qint64 end_nanosec);
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bool Load(const QUrl &, Engine::TrackChangeFlags change, bool force_stop_at_end, quint64 beginning_nanosec, 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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protected:
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void SetVolumeSW(uint percent);
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public:
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qint64 position_nanosec() const;
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qint64 length_nanosec() const;
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const Engine::Scope &scope(int chunk_length);
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OutputDetailsList GetOutputsList() const;
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QString DefaultOutput() { return kAutoSink; }
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bool CustomDeviceSupport(const QString &name);
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void EnsureInitialised() { initialising_.waitForFinished(); }
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void InitialiseGStreamer();
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void SetEnvironment();
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GstElement *CreateElement(const QString &factoryName, GstElement *bin = 0, bool fatal = true, bool showerror = true);
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void ConsumeBuffer(GstBuffer *buffer, int pipeline_id);
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public slots:
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void ReloadSettings();
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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 AddBufferConsumer(GstBufferConsumer *consumer);
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void RemoveBufferConsumer(GstBufferConsumer *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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protected:
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void timerEvent(QTimerEvent*);
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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, 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 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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static const char *kAutoSink;
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static const char *kALSASink;
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static const char *kOpenALSASink;
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static const char *kOSSSink;
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static const char *kOSS4Sink;
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static const char *kJackAudioSink;
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static const char *kPulseSink;
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static const char *kA2DPSink;
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static const char *kAVDTPSink;
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static const char *InterAudiosink;
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static const char *kDirectSoundSink;
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static const char *kOSXAudioSink;
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PluginDetailsList GetPluginList(const QString &classname) const;
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QByteArray FixupUrl(const QUrl &url);
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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(const QUrl &url, qint64 end_nanosec);
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std::shared_ptr<GstEnginePipeline> CreatePipeline(const QByteArray &url, qint64 end_nanosec);
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void UpdateScope(int chunk_length);
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private:
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static const qint64 kTimerIntervalNanosec = 1000 * kNsecPerMsec; // 1s
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static const qint64 kPreloadGapNanosec = 3000 * kNsecPerMsec; // 3s
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static const qint64 kSeekDelayNanosec = 100 * kNsecPerMsec; // 100msec
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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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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<GstBufferConsumer*> buffer_consumers_;
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GstBuffer *latest_buffer_;
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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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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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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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};
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#endif /* GSTENGINE_H */
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