Capture class for V4L2 devices. More...
#include <V4L2Grabber.h>
Inheritance diagram for V4L2Grabber:
Public Slots | |
| bool | start () |
| void | stop () |
| void | componentStateChanged (const hyperion::Components component, bool enable) |
Signals | |
| void | newFrame (const Image< ColorRgb > &image) |
| void | readError (const char *err) |
Public Member Functions | |
| V4L2Grabber (const QString &device, VideoStandard videoStandard, PixelFormat pixelFormat, int pixelDecimation) | |
| QRectF | getSignalDetectionOffset () |
| bool | getSignalDetectionEnabled () |
| int | grabFrame (Image< ColorRgb > &) |
| virtual void | setWidthHeight () |
| overwrite Grabber.h implementation, as v4l doesn't use width/height | |
| virtual void | setPixelDecimation (int pixelDecimation) |
| set new PixelDecimation value to ImageResampler More... | |
| virtual void | setSignalThreshold (double redSignalThreshold, double greenSignalThreshold, double blueSignalThreshold, int noSignalCounterThreshold=50) |
| overwrite Grabber.h implementation | |
| virtual void | setSignalDetectionOffset (double verticalMin, double horizontalMin, double verticalMax, double horizontalMax) |
| overwrite Grabber.h implementation | |
| virtual void | setSignalDetectionEnable (bool enable) |
| overwrite Grabber.h implementation | |
| virtual void | setDeviceVideoStandard (QString device, VideoStandard videoStandard) |
| overwrite Grabber.h implementation | |
 Public Member Functions inherited from Grabber | |
| 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 | 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. | |
Additional Inherited Members | |
| Protected Attributes inherited from Grabber | |
| 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
Capture class for V4L2 devices.
Member Function Documentation
§ setPixelDecimation()
|
virtual |
set new PixelDecimation value to ImageResampler
- Parameters
-
pixelDecimation The new pixelDecimation value
Reimplemented from Grabber.
The documentation for this class was generated from the following files:
- include/grabber/V4L2Grabber.h
- libsrc/grabber/v4l2/V4L2Grabber.cpp
