Extract Sequence of Frames from Movie

Extract Sequence of Frames from Movie

This option extracts a sequence of images from a movie file.

Name of movie to extract frame from ?

The movie file from which the sequence is to be extracted is specified here. This file must already exist.

Buffer for first extracted image ?

This entry determines which buffer the first extracted image is written to. The selected buffer is made the current output buffer. Subsequent images are extracted to subsequent buffers.

Message:
Reading movie information...

Time for first image to be extracted ?

This entry specifies the time for which the first image is required. The image extracted will be the image at the time specified or, if there is no image for that time, the first image following that time.

The time at which the first image was actually recorded is returned in !!R0.

Number of images to be extracted ?

Specify the number of images to be extracted from the movie. No more than the number of buffers remaining may be extracted or the number of images in the movie may be extracted.

Spacing between images (0 => extract every image) ?

The spacing between the images (in seconds). If you wish to extract every image, you may specify either the precise spacing, or zero.

Errors, Warnings and Messages

Error Message:
Unable to find requested image in movie file

An image could not be located in the movie file corresponding to the requested time. The most probable cause is that the movie was not recorded for the time requested.

Message:
Extracted image recorded at !!FR0=!!FR0s (field !!R1=!!R1)
as sample !!R2=!!R2.


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Stuart Dalziel, last page update: 19 February 1996