120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
/* This file is part of Clementine.
|
|
|
|
Clementine is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Clementine 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Clementine. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef GSTENGINEPIPELINE_H
|
|
#define GSTENGINEPIPELINE_H
|
|
|
|
#include <QObject>
|
|
#include <QUrl>
|
|
#include <QTimeLine>
|
|
|
|
#include <gst/gst.h>
|
|
|
|
#include "engine_fwd.h"
|
|
|
|
class GstEngine;
|
|
|
|
class GstEnginePipeline : public QObject {
|
|
Q_OBJECT
|
|
|
|
public:
|
|
GstEnginePipeline();
|
|
~GstEnginePipeline();
|
|
|
|
// Call these setters before Init
|
|
void set_output_device(const QString& sink, const QString& device);
|
|
void set_forwards_buffers(bool v) { forwards_buffers_ = v; }
|
|
|
|
// Creates the pipeline, returns false on error
|
|
bool Init(const QUrl& url);
|
|
|
|
// Control the music playback
|
|
bool SetState(GstState state);
|
|
bool Seek(qint64 nanosec);
|
|
void SetEqualizerEnabled(bool enabled);
|
|
void SetEqualizerParams(int preamp, const QList<int>& band_gains);
|
|
void SetVolume(int percent);
|
|
void StartFader(int duration_msec,
|
|
QTimeLine::Direction direction = QTimeLine::Forward,
|
|
QTimeLine::CurveShape shape = QTimeLine::LinearCurve);
|
|
|
|
// Get information about the music playback
|
|
bool is_valid() const { return valid_; }
|
|
qint64 position() const;
|
|
qint64 length() const;
|
|
GstState state() const;
|
|
|
|
public slots:
|
|
void SetVolumeModifier(qreal mod);
|
|
|
|
signals:
|
|
void EndOfStreamReached();
|
|
void MetadataFound(const Engine::SimpleMetaBundle& bundle);
|
|
void BufferFound(GstBuffer* buf);
|
|
void Error(const QString& message);
|
|
void FaderFinished();
|
|
|
|
private:
|
|
// Static callbacks. The GstEnginePipeline instance is passed in the last
|
|
// argument.
|
|
static GstBusSyncReply BusCallbackSync(GstBus*, GstMessage*, gpointer);
|
|
static gboolean BusCallback(GstBus*, GstMessage*, gpointer);
|
|
static void NewPadCallback(GstElement*, GstPad*, gboolean, gpointer);
|
|
static bool HandoffCallback(GstPad*, GstBuffer*, gpointer);
|
|
static void EventCallback(GstPad*, GstEvent*, gpointer);
|
|
void TagMessageReceived(GstMessage*);
|
|
QString ParseTag(GstTagList* list, const char* tag) const;
|
|
void ErrorMessageReceived(GstMessage*);
|
|
|
|
void UpdateVolume();
|
|
|
|
private:
|
|
static const int kGstStateTimeoutNanosecs = 10000000;
|
|
|
|
static const char* kHttpGstreamerSource;
|
|
|
|
bool valid_;
|
|
QString sink_;
|
|
QString device_;
|
|
bool forwards_buffers_;
|
|
|
|
int volume_percent_;
|
|
qreal volume_modifier_;
|
|
|
|
QTimeLine* fader_;
|
|
|
|
GstElement* pipeline_;
|
|
|
|
// Bins
|
|
// src ! decodebin ! audiobin
|
|
GstElement* src_;
|
|
GstElement* decodebin_;
|
|
GstElement* audiobin_;
|
|
|
|
// Elements in the audiobin
|
|
// audioconvert ! equalizer ! volume ! audioscale ! audioconvert ! audiosink
|
|
GstElement* audioconvert_;
|
|
GstElement* equalizer_;
|
|
GstElement* volume_;
|
|
GstElement* audioscale_;
|
|
GstElement* audiosink_;
|
|
|
|
uint event_cb_id_;
|
|
uint bus_cb_id_;
|
|
};
|
|
|
|
#endif // GSTENGINEPIPELINE_H
|