FDifference compares the red channel (or blue?, unsure) of two consecutive frames of the video stream and stores the absolute difference in the alpha channel. The overall difference value is stored in the user_data field of the buffer header.

Required: BeOS 5, libFMedia
Suggested: Cortex or MediaControl

FDifference Alpha 1

Source and Binary

initial public release FDifference-1.0a1-8-src.zip, 30kB (for BeOS x86)