mencoder, ffmpeg 동영상 자르기 샘플
mencoder -endpos 00:03:00 -ovc copy -oac copy cbstv20110719.wmv -o sample1.cbstv20110719.wmv
mencoder -ss 00:03:00 -oac copy -ovc copy cbstv20110719.wmv -o sample2.cbstv20110719.wmv
mencoder -ss 00:03:00 -oac copy -ovc copy cbstv20110719.wmv -o sample.cbstv20110719.wmv
mencoder -ss 00:00:00 -endpos 00:01:00 -ovc copy -oac copy cbstv20110719.wmv -o sample1.cbstv20110719.wmv
mencoder -ss 00:00:00 -endpos 00:01:00 -oac copy -ovc copy cbstv20110719.wmv -o sample2.cbstv20110719.wmv
ffmpeg -i cbstv20110719.wmv -ss 00 -t 180 -vcodec copy -acodec copy sampel.cbstv20110719.wmv