This class is a base class for video4linux based video input.
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#include <mipv4linput.h>
List of all members.
Public Member Functions |
| bool | open (const std::string &device=std::string("/dev/video0"), const MIPV4LInputParameters *pParams=0) |
| | Opens a video4linux device.
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| bool | close () |
| | Closes the video4linux device.
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| int | getWidth () const |
| | Returns the width of the captured video frames.
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| int | getHeight () const |
| | Returns the height of the captured video frames.
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| void | setSourceID (uint64_t srcID) |
| | Sets the source ID to be stored in generated messages.
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| uint64_t | getSourceID () const |
| | Returns the source ID which will be stored in generated messages.
|
Protected Member Functions |
| | MIPV4LInput (const std::string &compName) |
| | Constructor meant to be used by subclasses.
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| virtual bool | subInit (int device, const MIPV4LInputParameters *pParams) |
| | Virtual function, meant to be overridden by subclasses.
|
Detailed Description
This component is a basic video4linux input component. Specific components can be derived from this class and can be initialized by overriding the MIPV4LInput::subInit member function. The component accepts both MIPSYSTEMMESSAGE_TYPE_WAITTIME and MIPSYSTEMMESSAGE_TYPE_ISTIME messages.
Constructor & Destructor Documentation
| MIPV4LInput::MIPV4LInput |
( |
const std::string & |
compName | ) |
[protected] |
Member Function Documentation
| bool MIPV4LInput::close |
( |
| ) |
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| int MIPV4LInput::getHeight |
( |
| ) |
const [inline] |
| uint64_t MIPV4LInput::getSourceID |
( |
| ) |
const [inline] |
| int MIPV4LInput::getWidth |
( |
| ) |
const [inline] |
| bool MIPV4LInput::open |
( |
const std::string & |
device = std::string("/dev/video0"), |
|
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const MIPV4LInputParameters * |
pParams = 0 |
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) |
| |
Using this function, a video4linux device can be opened.
- Parameters:
-
| device | The name of the video4linux device. |
| pParams | Additional parameters for the video4linux device. These can be used by a subclass if the MIPV4LInput::subInit member function is overridden. |
| void MIPV4LInput::setSourceID |
( |
uint64_t |
srcID | ) |
[inline] |
| virtual bool MIPV4LInput::subInit |
( |
int |
device, |
|
|
const MIPV4LInputParameters * |
pParams |
|
) |
| [inline, protected, virtual] |
This function can be overridden by subclasses and can be used to perform device specific initialization. In case of an error, the subclass should set the error string itself.
- Parameters:
-
| device | The device identifier. |
| pParams | Device specific parameters. A subclass should probably also derive a class from MIPV4LInputParameters in which additional parameters can be specified. |
The documentation for this class was generated from the following file:
