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39 | |
40 | #ifndef QGSTREAMERPLAYERSESSION_H |
41 | #define QGSTREAMERPLAYERSESSION_H |
42 | |
43 | #include <QtMultimedia/private/qtmultimediaglobal_p.h> |
44 | #include <QObject> |
45 | #include <QtCore/qmutex.h> |
46 | #include "qgstreameraudiodecodercontrol.h" |
47 | #include <private/qgstreamerbushelper_p.h> |
48 | #include "qaudiodecoder.h" |
49 | |
50 | #if QT_CONFIG(gstreamer_app) |
51 | #include <private/qgstappsrc_p.h> |
52 | #endif |
53 | |
54 | #include <gst/gst.h> |
55 | #include <gst/app/gstappsink.h> |
56 | |
57 | QT_BEGIN_NAMESPACE |
58 | |
59 | class QGstreamerBusHelper; |
60 | class QGstreamerMessage; |
61 | |
62 | class QGstreamerAudioDecoderSession : public QObject, |
63 | public QGstreamerBusMessageFilter |
64 | { |
65 | Q_OBJECT |
66 | Q_INTERFACES(QGstreamerBusMessageFilter) |
67 | |
68 | public: |
69 | QGstreamerAudioDecoderSession(QObject *parent); |
70 | virtual ~QGstreamerAudioDecoderSession(); |
71 | |
72 | QGstreamerBusHelper *bus() const { return m_busHelper; } |
73 | |
74 | QAudioDecoder::State state() const { return m_state; } |
75 | QAudioDecoder::State pendingState() const { return m_pendingState; } |
76 | |
77 | bool processBusMessage(const QGstreamerMessage &message) override; |
78 | |
79 | #if QT_CONFIG(gstreamer_app) |
80 | QGstAppSrc *appsrc() const { return m_appSrc; } |
81 | static void configureAppSrcElement(GObject*, GObject*, GParamSpec*,QGstreamerAudioDecoderSession* _this); |
82 | #endif |
83 | |
84 | QString sourceFilename() const; |
85 | void setSourceFilename(const QString &fileName); |
86 | |
87 | QIODevice* sourceDevice() const; |
88 | void setSourceDevice(QIODevice *device); |
89 | |
90 | void start(); |
91 | void stop(); |
92 | |
93 | QAudioFormat audioFormat() const; |
94 | void setAudioFormat(const QAudioFormat &format); |
95 | |
96 | QAudioBuffer read(); |
97 | bool bufferAvailable() const; |
98 | |
99 | qint64 position() const; |
100 | qint64 duration() const; |
101 | |
102 | static GstFlowReturn new_sample(GstAppSink *sink, gpointer user_data); |
103 | |
104 | signals: |
105 | void stateChanged(QAudioDecoder::State newState); |
106 | void formatChanged(const QAudioFormat &format); |
107 | void sourceChanged(); |
108 | |
109 | void error(int error, const QString &errorString); |
110 | |
111 | void bufferReady(); |
112 | void bufferAvailableChanged(bool available); |
113 | void finished(); |
114 | |
115 | void positionChanged(qint64 position); |
116 | void durationChanged(qint64 duration); |
117 | |
118 | private slots: |
119 | void updateDuration(); |
120 | |
121 | private: |
122 | void setAudioFlags(bool wantNativeAudio); |
123 | void addAppSink(); |
124 | void removeAppSink(); |
125 | |
126 | void processInvalidMedia(QAudioDecoder::Error errorCode, const QString& errorString); |
127 | static qint64 getPositionFromBuffer(GstBuffer* buffer); |
128 | |
129 | QAudioDecoder::State m_state; |
130 | QAudioDecoder::State m_pendingState; |
131 | QGstreamerBusHelper *m_busHelper; |
132 | GstBus *m_bus; |
133 | GstElement *m_playbin; |
134 | GstElement *m_outputBin; |
135 | GstElement *m_audioConvert; |
136 | GstAppSink *m_appSink; |
137 | |
138 | #if QT_CONFIG(gstreamer_app) |
139 | QGstAppSrc *m_appSrc; |
140 | #endif |
141 | |
142 | QString mSource; |
143 | QIODevice *mDevice; // QWeakPointer perhaps |
144 | QAudioFormat mFormat; |
145 | |
146 | mutable QMutex m_buffersMutex; |
147 | int m_buffersAvailable; |
148 | |
149 | qint64 m_position; |
150 | qint64 m_duration; |
151 | |
152 | int m_durationQueries; |
153 | }; |
154 | |
155 | QT_END_NAMESPACE |
156 | |
157 | #endif // QGSTREAMERPLAYERSESSION_H |
158 | |