| 1 | // Copyright (C) 2023 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 QV4L2FILEDESCRIPTOR_P_H |
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| 5 | #define QV4L2FILEDESCRIPTOR_P_H |
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| 6 | |
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| 7 | #include <private/qtmultimediaglobal_p.h> |
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| 8 | |
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| 9 | // |
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| 10 | // W A R N I N G |
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| 11 | // ------------- |
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| 12 | // |
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| 13 | // This file is not part of the Qt API. It exists purely as an |
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| 14 | // implementation detail. This header file may change from version to |
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| 15 | // version without notice, or even be removed. |
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| 16 | // |
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| 17 | // We mean it. |
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| 18 | // |
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| 19 | |
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| 20 | QT_BEGIN_NAMESPACE |
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| 21 | |
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| 22 | int xioctl(int fd, int request, void *arg); |
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| 23 | |
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| 24 | class QV4L2FileDescriptor |
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| 25 | { |
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| 26 | public: |
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| 27 | QV4L2FileDescriptor(int descriptor); |
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| 28 | |
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| 29 | ~QV4L2FileDescriptor(); |
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| 30 | |
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| 31 | bool call(int request, void *arg) const; |
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| 32 | |
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| 33 | int get() const { return m_descriptor; } |
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| 34 | |
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| 35 | bool requestBuffers(quint32 memoryType, quint32 &buffersCount) const; |
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| 36 | |
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| 37 | bool startStream(); |
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| 38 | |
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| 39 | bool stopStream(); |
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| 40 | |
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| 41 | bool streamStarted() const { return m_streamStarted; } |
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| 42 | |
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| 43 | private: |
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| 44 | int m_descriptor; |
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| 45 | bool m_streamStarted = false; |
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| 46 | }; |
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| 47 | |
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| 48 | QT_END_NAMESPACE |
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| 49 | |
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| 50 | #endif // QV4L2FILEDESCRIPTOR_P_H |
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| 51 | |
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