openvideo::VideoWrapperSrc Class Reference
[Node Classes]
VideoWrapperSrc implements an OpenVideo node to access the videowrapper library.
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#include <VideoWrapperSrc.h>
Inherits openvideo::Node.
Public Types | |
| enum | { MAX_BUFFERS = 10 } |
Public Member Functions | |
| VideoWrapperSrc () | |
| ~VideoWrapperSrc () | |
| virtual bool | setParameter (std::string key, std::string value) |
| virtual void | init () |
| virtual void | process () |
| virtual void | postProcess () |
| virtual void | preProcess () |
| virtual void | initPixelFormats () |
Protected Attributes | |
| unsigned short | g_hVideo |
| char | libId [20] |
| char | formatId [20] |
| int | cameraNum |
| int | width |
| int | height |
| int | frameRate |
| int | format |
| float | scale |
| int | numBuffers |
Detailed Description
VideoWrapperSrc implements an OpenVideo node to access the videowrapper library.
The xml entry looks like this:
<VideoWrapperSrc
name="VWSrc_1"
libId="vc"
formatId="UYVY"
cameraNum="1"
width="320"
height="240"
frameRate="15"
scale="0">
</VideoWrapperSrc>
(libID,camNum,width,height,frameRate,scale refer all to VideoWrapper's init. string)
- name = node name
- libId = VideoWrapper's library identifier (vc=vidcature)
- cameraNum = the camera number this nodes refers to
- width = video widht
- height = video height
- frameRate = VideoWrapper's update rate
- scale = VideoWrapper's scale value
Supported Pixel Formats:
- : R8G8B8
Definition at line 79 of file VideoWrapperSrc.h.
Member Enumeration Documentation
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Definition at line 84 of file VideoWrapperSrc.h. |
Constructor & Destructor Documentation
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Definition at line 117 of file VideoWrapperSrc.cxx. References cameraNum, format, formatId, frameRate, height, libId, openvideo::Node::name, numBuffers, scale, openvideo::Node::typeName, and width. |
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Definition at line 127 of file VideoWrapperSrc.cxx. |
Member Function Documentation
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This function calls intializes the videowrapper lib. it then opens and starts the video stream. Finally it creates a new context where it puts the video specific data on. Reimplemented from openvideo::Node. Definition at line 139 of file VideoWrapperSrc.cxx. References cameraNum, openvideo::State::clear(), openvideo::State::format, format, openvideo::FORMAT_UNKNOWN, formatId, frameRate, openvideo::PixelFormat::fromOGL(), g_hVideo, openvideo::Manager::getInstance(), openvideo::State::height, height, libId, numBuffers, scale, openvideo::Node::state, openvideo::State::width, and width. |
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return value = the number of supported input formats. the formats are stored in 'pixelFormats'. Implements openvideo::Node. Definition at line 132 of file VideoWrapperSrc.cxx. References openvideo::FORMAT_R8G8B8, and openvideo::Node::pixelFormats. |
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releases the videoframe (which was previously locked by the process fucntion.
Reimplemented from openvideo::Node. Definition at line 207 of file VideoWrapperSrc.cxx. |
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This function is called after OpenVideo's graph is entirely traversed and before a new traversal is invoked. Here, a specific node implementation can reset some data before a new traversal will take place. Reimplemented from openvideo::Node. Definition at line 184 of file VideoWrapperSrc.cxx. |
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Updates the video frame at its context object.
Reimplemented from openvideo::Node. Definition at line 190 of file VideoWrapperSrc.cxx. References openvideo::State::findFreeBuffer(), openvideo::Manager::getInstance(), openvideo::VideoWrapperSrcBuffer::getNewFrame(), and openvideo::Node::state. |
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Sets all relevat parameters.
Reimplemented from openvideo::Node. Definition at line 213 of file VideoWrapperSrc.cxx. References cameraNum, formatId, frameRate, height, MAX_BUFFERS, numBuffers, scale, openvideo::Node::setParameter(), and width. |
Member Data Documentation
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self explaining variables.
Definition at line 140 of file VideoWrapperSrc.h. Referenced by init(), setParameter(), and VideoWrapperSrc(). |
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self explaining variables.
Definition at line 140 of file VideoWrapperSrc.h. Referenced by init(), and VideoWrapperSrc(). |
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the video format string.
Definition at line 135 of file VideoWrapperSrc.h. Referenced by init(), setParameter(), and VideoWrapperSrc(). |
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self explaining variables.
Definition at line 140 of file VideoWrapperSrc.h. Referenced by init(), setParameter(), and VideoWrapperSrc(). |
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the handle to the video stream
Definition at line 125 of file VideoWrapperSrc.h. Referenced by init(). |
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self explaining variables.
Definition at line 140 of file VideoWrapperSrc.h. Referenced by init(), setParameter(), and VideoWrapperSrc(). |
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videowrapper's library id.
Definition at line 130 of file VideoWrapperSrc.h. Referenced by init(), and VideoWrapperSrc(). |
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Number of frame buffers.
Definition at line 149 of file VideoWrapperSrc.h. Referenced by init(), setParameter(), and VideoWrapperSrc(). |
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videowrapper's scale value.
Definition at line 145 of file VideoWrapperSrc.h. Referenced by init(), setParameter(), and VideoWrapperSrc(). |
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self explaining variables.
Definition at line 140 of file VideoWrapperSrc.h. Referenced by init(), setParameter(), and VideoWrapperSrc(). |
The documentation for this class was generated from the following files: