| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef qgstpipeline_p_H |
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| 5 | #define qgstpipeline_p_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtMultimedia/private/qtmultimediaglobal_p.h> |
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| 19 | #include <QtCore/qobject.h> |
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| 20 | |
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| 21 | #include "qgst_p.h" |
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| 22 | |
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| 23 | QT_BEGIN_NAMESPACE |
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| 24 | |
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| 25 | class QGstreamerMessage; |
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| 26 | class QGstreamerBusMessageFilter; |
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| 27 | struct QGstPipelinePrivate; |
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| 28 | |
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| 29 | class QGstPipeline : public QGstBin |
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| 30 | { |
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| 31 | static constexpr auto defaultQueryTimeout = std::chrono::seconds{ 5 }; |
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| 32 | |
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| 33 | public: |
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| 34 | constexpr QGstPipeline() = default; |
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| 35 | QGstPipeline(const QGstPipeline &) = default; |
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| 36 | QGstPipeline(QGstPipeline &&) = default; |
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| 37 | QGstPipeline &operator=(const QGstPipeline &) = default; |
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| 38 | QGstPipeline &operator=(QGstPipeline &&) noexcept = default; |
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| 39 | QGstPipeline(GstPipeline *, RefMode mode); |
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| 40 | ~QGstPipeline(); |
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| 41 | |
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| 42 | static QGstPipeline createFromFactory(const char *factory, const char *name); |
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| 43 | static QGstPipeline create(const char *name); |
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| 44 | |
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| 45 | void installMessageFilter(QGstreamerBusMessageFilter *filter); |
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| 46 | void removeMessageFilter(QGstreamerBusMessageFilter *filter); |
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| 47 | |
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| 48 | GstStateChangeReturn setState(GstState state); |
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| 49 | |
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| 50 | GstPipeline *pipeline() const { return GST_PIPELINE_CAST(get()); } |
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| 51 | |
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| 52 | bool processNextPendingMessage(GstMessageType = GST_MESSAGE_ANY, |
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| 53 | std::chrono::nanoseconds timeout = {}); |
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| 54 | bool processNextPendingMessage(std::chrono::nanoseconds timeout); |
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| 55 | |
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| 56 | void flush(); |
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| 57 | |
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| 58 | void setPlaybackRate(double rate, bool forceFlushingSeek = false); |
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| 59 | double playbackRate() const; |
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| 60 | void applyPlaybackRate(bool forceFlushingSeek = false); |
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| 61 | |
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| 62 | void setPosition(std::chrono::nanoseconds pos, bool flush = true); |
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| 63 | std::chrono::nanoseconds position() const; |
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| 64 | std::chrono::milliseconds positionInMs() const; |
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| 65 | |
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| 66 | void setPositionAndRate(std::chrono::nanoseconds pos, double rate); |
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| 67 | |
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| 68 | std::optional<std::chrono::nanoseconds> |
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| 69 | queryPosition(std::chrono::nanoseconds timeout = defaultQueryTimeout) const; |
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| 70 | std::optional<std::chrono::nanoseconds> |
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| 71 | queryDuration(std::chrono::nanoseconds timeout = defaultQueryTimeout) const; |
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| 72 | std::optional<std::pair<std::chrono::nanoseconds, std::chrono::nanoseconds>> |
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| 73 | queryPositionAndDuration(std::chrono::nanoseconds timeout = defaultQueryTimeout) const; |
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| 74 | |
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| 75 | void seekToEndWithEOS(); |
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| 76 | |
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| 77 | private: |
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| 78 | // installs QGstPipelinePrivate as "pipeline-private" gobject property |
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| 79 | static QGstPipeline adopt(GstPipeline *); |
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| 80 | |
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| 81 | void seek(std::chrono::nanoseconds pos, double rate, bool flush); |
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| 82 | void seek(std::chrono::nanoseconds pos, bool flush); |
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| 83 | |
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| 84 | QGstPipelinePrivate *getPrivate() const; |
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| 85 | }; |
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| 86 | |
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| 87 | QT_END_NAMESPACE |
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| 88 | |
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| 89 | #endif |
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| 90 | |
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