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2013-01-31Put print_time into util.cBenjamin Franzke1-0/+5
2012-11-15pgm_save: Check whether file could be openedBenjamin Franzke1-1/+1
2012-11-15util: Remove pgm output in frame_mix functionBenjamin Franzke1-2/+3
That should be up to the utility user, to use pgm_save afterwards.
2012-11-15Add frame mix saving for high diffs.Jan Klemkow1-0/+3
2012-11-14Add util.cBenjamin Franzke1-0/+7