Suggested PIpeline to capture jpegs from playing movie?

Stirling Westrup swestrup at
Tue Oct 6 13:10:59 PDT 2015

While we have a movie playing to a display, we'd like to have a secondary
output capturing one frame every second or so, and storing it in a jpeg
file. In particular, we want each new frame to overwrite the last, so that
the jpeg file just shows one frame from the last second.

Does anyone have a suggestion for a good pipeline to accomplish this sort
of thing?

Stirling Westrup
Programmer, Entrepreneur.
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