Public Member Functions | |
tlDigitizerV4L2 (int width, int height) | |
tlDigitizerV4L2 (int width, int height, int channel, unsigned short input=TL_SOURCE_AUTO) | |
virtual int | open (int index=0) |
virtual int | open (int width, int height, int index=0) |
int | open (int width, int height, int index, int channel, unsigned short input=TL_SOURCE_AUTO) |
virtual int | close () |
virtual int | setChannel (int channel, unsigned short input) |
virtual int | setInput (unsigned short input) |
virtual int | setSize (int width, int height) |
virtual int | grab (tlImage *image) |
virtual int | grab (tlImage *image, tlRect *rect) |
virtual int | grabQueued (tlImage *image) |
virtual int | grabQueued (tlImage *image, tlRect *rect) |
unsigned short | getInput () |
int | getChannel () |
virtual int | setFrameRate (int fps) |
int | getWidth () |
int | getHeight () |
int | getID () |
tl_format | getFormat () |
Protected Attributes | |
bool | isOpen |
tlDigitizerV4L2::tlDigitizerV4L2 | ( | int | width, | |
int | height | |||
) |
Prepare a digitizer for image acquisition using a given acquisition size. A subsequent call to open() will open the digitizer with the given settings.
width | acquisition width | |
height | acquisition height |
References TL_NO_ERROR.
tlDigitizerV4L2::tlDigitizerV4L2 | ( | int | width, | |
int | height, | |||
int | channel, | |||
unsigned short | input = TL_SOURCE_AUTO | |||
) |
Prepare a digitizer for image acquisition using a given acquisition size and specific acquisition channel. A subsequent call to open() will open the digitizer with the given settings.
width | new acquisition width | |
height | new acquisition height | |
channel | channel index on the digitizer | |
input | input channel video format |
References TL_NO_ERROR.
int tlDigitizerV4L2::open | ( | int | index = 0 |
) | [virtual] |
Open a digitizer for image acquisition using default settings.
index | [default=0] the index of the digitizer in the system (for use of multiple digitizers at the same time) |
Implements tlDigitizer.
int tlDigitizerV4L2::open | ( | int | width, | |
int | height, | |||
int | index = 0 | |||
) | [virtual] |
Open a digitizer for image acquisition using a given acquisition size.
width | new acquisition width | |
height | new acquisition height | |
index | [default=0] the index of the digitizer in the system (for use of multiple digitizers at the same time) |
Reimplemented from tlDigitizer.
References open().
int tlDigitizerV4L2::open | ( | int | width, | |
int | height, | |||
int | index, | |||
int | channel, | |||
unsigned short | input = TL_SOURCE_AUTO | |||
) |
Open a digitizer for image acquisition using a given acquisition size and a specific acquisition channel.
width | new acquisition width | |
height | new acquisition height | |
channel | channel index on the digitizer | |
input | input channel video format | |
index | [default=0] open device at a specific index (for use of multiple devices) |
References tlDigitizer::isOpen, open(), setChannel(), TL_DEFAULT_COLS, TL_DEFAULT_ROWS, TL_ERRNO_MSG, TL_ERROR_ALLOCATION_FAILED, TL_ERROR_RESOURCE_NOT_AVAILABLE, and tlVerbose.
int tlDigitizerV4L2::close | ( | ) | [virtual] |
Clean up digitizer buffers and close hardware connection. Configuration is retained, so that a call to open() will restore the digitizer state to the last used mode.
Implements tlDigitizer.
References tlDigitizer::isOpen, and tlVerbose.
Referenced by setSize().
int tlDigitizerV4L2::setChannel | ( | int | channel, | |
unsigned short | input | |||
) | [virtual] |
Set the acquisition channel.
channel | channel index on the digitizer | |
input | input format |
Reimplemented from tlDigitizer.
References setInput(), TL_ERRNO_MSG, and TL_ERROR_CONFIG_FAILED.
Referenced by open().
int tlDigitizerV4L2::setInput | ( | unsigned short | input | ) | [virtual] |
Set the acquisition channel input format.
input | input format |
Reimplemented from tlDigitizer.
References TL_ERRNO_MSG, TL_ERROR_CONFIG_FAILED, TL_SOURCE_AUTO, TL_SOURCE_NTSC, TL_SOURCE_NTSCJ, TL_SOURCE_PAL, TL_SOURCE_PALM, TL_SOURCE_PALN, TL_SOURCE_SECAM, and tlVerbose.
Referenced by setChannel().
int tlDigitizerV4L2::setSize | ( | int | width, | |
int | height | |||
) | [virtual] |
Set the digitizer acquisition size. All other parameters are left untouched. Depending on the hardware, this call might close and reopen the device, possibly leading to some latency.
width | new acquisition width | |
height | new acquisition height |
Reimplemented from tlDigitizer.
References close(), open(), and TL_NO_ERROR.
int tlDigitizerV4L2::grab | ( | tlImage * | image | ) | [virtual] |
This call acquires a full image from an image source. The image will have the size and format the source is currently configured for.
image | [out] a valid image pointer that will receive the image. |
Implements tlDigitizer.
References tlPixelArray::init(), tlDigitizer::isOpen, tlPixelArray::pixel, RGB, TL_ERRNO_MSG, TL_ERROR, TL_NO_ERROR, and tlVerbose.
Referenced by grab(), and grabQueued().
This call acquires a portion of an image from an image source. The image will have the size and format the source is currently configured for, but only the portion defined by the rect argument will contain valid pixel values.
image | [out] a valid image pointer that will receive the image. | |
rect | a pointer to the portion of the image to acquire. |
Implements tlDigitizer.
References grab().
int tlDigitizerV4L2::grabQueued | ( | tlImage * | image | ) | [virtual] |
This call acquires a full image from an image source. The image will have the size and format the source is currently configured for.
image | [out] a valid image pointer that will receive the image. |
Implements tlDigitizer.
References grab().
Referenced by grabQueued().
This call acquires a portion of an image from an image source. The image will have the size and format the source is currently configured for, but only the portion defined by the rect argument will contain valid pixel values.
image | [out] a valid image pointer that will receive the image. | |
rect | a pointer to the portion of the image to acquire. |
Implements tlDigitizer.
References grabQueued().
tlDigitizer::getInput | ( | ) | [inline, inherited] |
tlDigitizer::getChannel | ( | ) | [inline, inherited] |
Get currently selected input channel.
int tlDigitizer::setFrameRate | ( | int | fps | ) | [virtual, inherited] |
Set the acquisition frame rate.
fps | desired frames per second |
Reimplemented in tlDigitizerDT3130, tlDigitizerDX, tlDigitizerPXC200, and tlDigitizerV4L.
References TL_ERRNO_MSG, and TL_ERROR_NOT_AVAILABLE.
tlSource::getWidth | ( | ) | [inline, inherited] |
Returns the width of the image source. Any image acquired through this tlSource object will have the current width.
Referenced by tlCameraTSAI::setSource(), and tlCameraTSAI::tlCameraTSAI().
tlSource::getHeight | ( | ) | [inline, inherited] |
Returns the height of the image source. Any image acquired through this tlSource object will have the current height.
Referenced by tlCameraTSAI::setSource(), and tlCameraTSAI::tlCameraTSAI().
tlSource::getID | ( | ) | [inline, inherited] |
Return a unique identifier for this source. Identifiers are allocated dynamically and are only valid during application run-time.
tlSource::getFormat | ( | ) | [inline, inherited] |
tlDigitizer::isOpen [protected, inherited] |
Return the current state of the digitizer.
Referenced by tlDigitizerVRm::close(), close(), tlDigitizerV4L::close(), tlDigitizerPXC200::close(), tlDigitizerDX::close(), tlDigitizerDT3130::close(), tlDigitizerVRm::grab(), grab(), tlDigitizerV4L::grab(), tlDigitizerPXC200::grab(), tlDigitizerDX::grab(), tlDigitizerV4L::grabQueued(), tlDigitizerPXC200::grabQueued(), tlDigitizerVRm::open(), open(), tlDigitizerV4L::open(), tlDigitizerPXC200::open(), tlDigitizerDX::open(), tlDigitizerDT3130::open(), tlDigitizerDX::setFrameRate(), tlDigitizerPXC200::setSize(), tlDigitizerDX::setSize(), tlDigitizerDT3130::setSize(), and tlDigitizer::tlDigitizer().