The Grabber class is responsible to apply image resizes (with or without ImageResampler) Overwrite the videoMode with setVideoMode() Overwrite setCropping() More...
#include <Grabber.h>
Inheritance diagram for Grabber:
Public Member Functions | |
| Grabber (QString grabberName, int width=0, int height=0, int cropLeft=0, int cropRight=0, int cropTop=0, int cropBottom=0) | |
| virtual void | setVideoMode (VideoMode mode) |
| Set the video mode (2D/3D) More... | |
| virtual void | setCropping (unsigned cropLeft, unsigned cropRight, unsigned cropTop, unsigned cropBottom) |
| Apply new crop values, on errors reject the values. | |
| virtual bool | setWidthHeight (int width, int height) |
| Apply new width/height values, on errors (collide with cropping) reject the values. More... | |
| virtual void | setPixelDecimation (int pixelDecimation) |
| Apply new pixelDecimation (used from x11 and qt) | |
| virtual void | setSignalThreshold (double redSignalThreshold, double greenSignalThreshold, double blueSignalThreshold, int noSignalCounterThreshold=50) |
| Apply new signalThreshold (used from v4l) | |
| virtual void | setSignalDetectionOffset (double verticalMin, double horizontalMin, double verticalMax, double horizontalMax) |
| Apply new SignalDetectionOffset (used from v4l) | |
| virtual void | setSignalDetectionEnable (bool enable) |
| Apply SignalDetectionEnable (used from v4l) | |
| virtual void | setDeviceVideoStandard (QString device, VideoStandard videoStandard) |
| Apply device and videoStanded (used from v4l) | |
| virtual void | setDisplayIndex (int index) |
| Apply display index (used from qt) | |
| virtual void | setDevicePath (const QString &path) |
| Apply path for device (used from framebuffer) | |
| virtual int | getImageWidth () |
| get current resulting height of image (after crop) | |
| virtual int | getImageHeight () |
| get current resulting width of image (after crop) | |
| void | setEnabled (bool enable) |
| Prevent the real capture implementation from capturing if disabled. | |
Protected Attributes | |
| ImageResampler | _imageResampler |
| bool | _useImageResampler |
| VideoMode | _videoMode |
| the selected VideoMode | |
| int | _width |
| With of the captured snapshot [pixels]. | |
| int | _height |
| Height of the captured snapshot [pixels]. | |
| int | _cropLeft |
| int | _cropRight |
| int | _cropTop |
| int | _cropBottom |
| bool | _enabled |
| Logger * | _log |
| logger instance | |
Detailed Description
The Grabber class is responsible to apply image resizes (with or without ImageResampler) Overwrite the videoMode with setVideoMode() Overwrite setCropping()
Member Function Documentation
§ setVideoMode()
|
virtual |
Set the video mode (2D/3D)
- Parameters
-
[in] mode The new video mode
Reimplemented in X11Grabber, and QtGrabber.
§ setWidthHeight()
|
virtual |
Apply new width/height values, on errors (collide with cropping) reject the values.
- Returns
- True on success else false
Reimplemented in DispmanxFrameGrabber, X11Grabber, and QtGrabber.
The documentation for this class was generated from the following files:
- include/hyperion/Grabber.h
- libsrc/hyperion/Grabber.cpp
