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Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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Inheritance diagram for QnxTextureBuffer: Collaboration diagram for QnxTextureBuffer:Public Member Functions | |
| QnxTextureBuffer (QQnxWindowGrabber *QQnxWindowGrabber) | |
| void | unmap () override |
| Releases the memory mapped by the map() function. | |
| MapData | map (QVideoFrame::MapMode) override |
| Maps the planes of a video buffer to memory. | |
| quint64 | textureHandle (QRhi &, int plane) override |
| QnxTextureBuffer (QQnxWindowGrabber *QQnxWindowGrabber) | |
| void | unmap () override |
| Releases the memory mapped by the map() function. | |
| MapData | map (QVideoFrame::MapMode) override |
| Maps the planes of a video buffer to memory. | |
| quint64 | textureHandle (QRhi &, int plane) override |
| Public Member Functions inherited from QHwVideoBuffer | |
| QHwVideoBuffer (QVideoFrame::HandleType type, QRhi *rhi=nullptr) | |
| ~QHwVideoBuffer () override | |
| QVideoFrame::HandleType | handleType () const |
| virtual QRhi * | rhi () const |
| QVideoFrameFormat | format () const override |
| Gets \l QVideoFrameFormat of the underlying video buffer. | |
| virtual QMatrix4x4 | externalTextureMatrix () const |
| virtual QVideoFrameTexturesUPtr | mapTextures (QRhi &, QVideoFrameTexturesUPtr &) |
| virtual void | initTextureConverter (QRhi &) |
| Public Member Functions inherited from QAbstractVideoBuffer | |
| virtual | ~QAbstractVideoBuffer () |
| \variable QAbstractVideoBuffer::MapData::planeCount | |
| Public Member Functions inherited from QVideoFrameTexturesHandles | |
| virtual | ~QVideoFrameTexturesHandles () |
Additional Inherited Members | |
| Protected Attributes inherited from QHwVideoBuffer | |
| QVideoFrame::HandleType | m_type |
| QRhi * | m_rhi = nullptr |
Definition at line 66 of file qqnxmediaplayer.cpp.
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inline |
Definition at line 69 of file qqnxmediaplayer.cpp.
References QnxTextureBuffer().
Referenced by QnxTextureBuffer().
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inline |
Definition at line 69 of file qqnxmediaplayer.cpp.
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inlineoverridevirtual |
Maps the planes of a video buffer to memory.
Returns a \l MapData structure that contains information about the plane layout of the mapped current video data. If the mapping fails, the method returns the default structure. For CPU memory buffers, the data is considered as already mapped, so the function just returns the plane layout of the preallocated underlying data.
The map mode indicates whether the contents of the mapped memory should be read from and/or written to the buffer. If the map mode includes the QVideoFrame::ReadOnly flag the mapped memory will be populated with the content of the buffer when initially mapped. If the map mode includes the QVideoFrame::WriteOnly flag the content of the possibly modified mapped memory will be written back to the buffer when unmapped.
When access to the data is no longer needed, the \l unmap function is called to release the mapped memory and possibly update the buffer contents.
If the format of the video data is multiplanar, the method may map the whole pixel data as a single plane. In this case, mapping a buffer with \l QVideoFrame will calculate additional planes from the specified line stride of the first plane, the frame height, and the data size.
Implements QAbstractVideoBuffer.
Definition at line 78 of file qqnxmediaplayer.cpp.
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inlineoverridevirtual |
Maps the planes of a video buffer to memory.
Returns a \l MapData structure that contains information about the plane layout of the mapped current video data. If the mapping fails, the method returns the default structure. For CPU memory buffers, the data is considered as already mapped, so the function just returns the plane layout of the preallocated underlying data.
The map mode indicates whether the contents of the mapped memory should be read from and/or written to the buffer. If the map mode includes the QVideoFrame::ReadOnly flag the mapped memory will be populated with the content of the buffer when initially mapped. If the map mode includes the QVideoFrame::WriteOnly flag the content of the possibly modified mapped memory will be written back to the buffer when unmapped.
When access to the data is no longer needed, the \l unmap function is called to release the mapped memory and possibly update the buffer contents.
If the format of the video data is multiplanar, the method may map the whole pixel data as a single plane. In this case, mapping a buffer with \l QVideoFrame will calculate additional planes from the specified line stride of the first plane, the frame height, and the data size.
Implements QAbstractVideoBuffer.
Definition at line 78 of file qqnxmediaplayer.cpp.
Reimplemented from QVideoFrameTexturesHandles.
Definition at line 83 of file qqnxmediaplayer.cpp.
Reimplemented from QVideoFrameTexturesHandles.
Definition at line 83 of file qqnxmediaplayer.cpp.
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inlineoverridevirtual |
Releases the memory mapped by the map() function.
If the \l {QVideoFrame::MapMode}{MapMode} included the QVideoFrame::WriteOnly flag this will write the current content of the mapped memory back to the video frame.
For CPU video buffers, the function may be not overridden. The default implementation of unmap does nothing.
Reimplemented from QAbstractVideoBuffer.
Definition at line 76 of file qqnxmediaplayer.cpp.
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inlineoverridevirtual |
Releases the memory mapped by the map() function.
If the \l {QVideoFrame::MapMode}{MapMode} included the QVideoFrame::WriteOnly flag this will write the current content of the mapped memory back to the video frame.
For CPU video buffers, the function may be not overridden. The default implementation of unmap does nothing.
Reimplemented from QAbstractVideoBuffer.
Definition at line 76 of file qqnxmediaplayer.cpp.
1.13.2