IMAQ AVI Get Info VI

LabView NI Vision

IMAQ AVI Get Info VI

Owning Palette: AVIInstalled With: NI Vision Development Module

Obtains information about the AVI file associated with Avi Refnum.

Note  This VI is not supported on ETS targets or VxWorks targets.

Examples

IMAQ AVI Get Info

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Avi Refnum is a reference to the AVI file output from the IMAQ AVI Create VI or the IMAQ AVI Open VI.

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error in (no error) describes the error status before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.

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status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.

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code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.

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source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.

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Frame Data is a cluster containing the width and height of the images, frames per second of the AVI, compression filter used to create the AVI file, and whether the AVI file has data associated with each image.

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width

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height

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framesPerSecond

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compressionFilter

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hasData

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Avi Refnum (duplicate) is the reference to the AVI file.

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Image Type specifies the type of image used in the AVI file.

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Number of Frames is the number of frames contained in the AVI file.

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error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.

ibool.gif

status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.

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code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.

istr.gif

source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.

Examples

Refer to the following for an example that uses this VI.

  • LabVIEW\examples\Vision\2. Functions\AVI\Read AVI Example.vi