203 lines
7.2 KiB
C++
203 lines
7.2 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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* Copyright (C) 2006 Paul Cifarelli <paul@cifarelli.net> *
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* Copyright (C) 2017-2021 Jonas Kvinge <jonas@jkvinge.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 <optional>
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#include <gst/gst.h>
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#include <gst/pbutils/pbutils.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 <QString>
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#include <QUrl>
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#include "core/shared_ptr.h"
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#include "enginebase.h"
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#include "gststartup.h"
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#include "gstbufferconsumer.h"
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class QTimer;
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class QTimerEvent;
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class TaskManager;
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class GstEnginePipeline;
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class GstEngine : public EngineBase, public GstBufferConsumer {
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Q_OBJECT
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public:
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explicit GstEngine(SharedPtr<TaskManager> task_manager, QObject *parent = nullptr);
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~GstEngine() override;
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static const char *kAutoSink;
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Type type() const override { return Type::GStreamer; }
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bool Init() override;
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EngineBase::State state() const override;
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void StartPreloading(const QUrl &media_url, const QUrl &stream_url, const bool force_stop_at_end, const qint64 beginning_nanosec, const qint64 end_nanosec) override;
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bool Load(const QUrl &media_url, const QUrl &stream_url, const EngineBase::TrackChangeFlags change, const bool force_stop_at_end, const quint64 beginning_nanosec, const qint64 end_nanosec, const std::optional<double> ebur128_integrated_loudness_lufs) override;
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bool Play(const quint64 offset_nanosec) override;
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void Stop(const bool stop_after = false) override;
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void Pause() override;
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void Unpause() override;
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void Seek(const quint64 offset_nanosec) override;
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protected:
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void SetVolumeSW(const uint volume) override;
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public:
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qint64 position_nanosec() const override;
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qint64 length_nanosec() const override;
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const EngineBase::Scope &scope(const int chunk_length) override;
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OutputDetailsList GetOutputsList() const override;
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bool ValidOutput(const QString &output) override;
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QString DefaultOutput() override { return kAutoSink; }
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bool CustomDeviceSupport(const QString &output) override;
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bool ALSADeviceSupport(const QString &output) override;
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bool ExclusiveModeSupport(const QString &output) override;
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void SetStartup(GstStartup *gst_startup) { gst_startup_ = gst_startup; }
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void EnsureInitialized() { gst_startup_->EnsureInitialized(); }
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void ConsumeBuffer(GstBuffer *buffer, const int pipeline_id, const QString &format) override;
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public slots:
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void ReloadSettings() override;
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// Set whether stereo balancer is enabled
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void SetStereoBalancerEnabled(const bool enabled) override;
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// Set Stereo balance, range -1.0f..1.0f
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void SetStereoBalance(const float value) override;
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// Set whether equalizer is enabled
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void SetEqualizerEnabled(const bool) override;
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// Set equalizer preamp and gains, range -100..100. Gains are 10 values.
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void SetEqualizerParameters(const int preamp, const QList<int> &band_gains) override;
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void AddBufferConsumer(GstBufferConsumer *consumer);
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void RemoveBufferConsumer(GstBufferConsumer *consumer);
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protected:
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void timerEvent(QTimerEvent *e) override;
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private slots:
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void EndOfStreamReached(const int pipeline_id, const bool has_next_track);
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void HandlePipelineError(const int pipeline_id, const int domain, const int error_code, const QString &message, const QString &debugstr);
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void NewMetaData(const int pipeline_id, const EngineMetadata &engine_metadata);
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void AddBufferToScope(GstBuffer *buf, const int pipeline_id, const QString &format);
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void FadeoutFinished();
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void FadeoutPauseFinished();
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void SeekNow();
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void PlayDone(const GstStateChangeReturn ret, 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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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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SharedPtr<GstEnginePipeline> CreatePipeline();
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SharedPtr<GstEnginePipeline> CreatePipeline(const QUrl &media_url, const QUrl &stream_url, const QByteArray &gst_url, const qint64 end_nanosec, const double ebur128_loudness_normalizing_gain_db);
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void UpdateScope(int chunk_length);
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static void StreamDiscovered(GstDiscoverer*, GstDiscovererInfo *info, GError*, gpointer self);
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static void StreamDiscoveryFinished(GstDiscoverer*, gpointer);
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static QString GSTdiscovererErrorMessage(GstDiscovererResult result);
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private:
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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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static const char *kWASAPISink;
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static const int kDiscoveryTimeoutS;
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static const qint64 kTimerIntervalNanosec;
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static const qint64 kPreloadGapNanosec;
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static const qint64 kSeekDelayNanosec;
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SharedPtr<TaskManager> task_manager_;
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GstStartup *gst_startup_;
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GstDiscoverer *discoverer_;
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int buffering_task_id_;
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SharedPtr<GstEnginePipeline> current_pipeline_;
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SharedPtr<GstEnginePipeline> fadeout_pipeline_;
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SharedPtr<GstEnginePipeline> fadeout_pause_pipeline_;
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QList<GstBufferConsumer*> buffer_consumers_;
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GstBuffer *latest_buffer_;
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bool stereo_balancer_enabled_;
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float stereo_balance_;
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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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// 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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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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QString buffer_format_;
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int discovery_finished_cb_id_;
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int discovery_discovered_cb_id_;
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};
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#endif // GSTENGINE_H
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