The ThumbnailGenerator sample shows how to obtain images from a video source without encoding. The sample extracts a number of images from the video in evenly-spaced intervals. For example, if you would like to extract 10 images from a 20 second video, then the sample will extract a still image every 2 seconds. Microsoft Expression Encoder saves the images in the ‘My Pictures’ directory. The image formats available are: bmp, gif, jpg, png, and tif. The sample will process one source file or a directory containing source files.
The following are optional parameters:
/count Sets the number of images to extract from the file(s). This defaults to 5.
/offset Sets a time offset to begin taking thumbnails. This defaults to 0.
/format Sets the type of image to be created. This defaults to bitmap.