Geschrieben von skaldrom am 6. May 2009
Today, every camera is, every mobile is and soon every stapler will be able to record videos. Depending if your friends are rather large than tall, the recordings may have the wrong orientation after download. Fortunately there is mencoder, and with its help, it is easily possible to straighten the movies.
Unfortunately, recoding the video is mandatory because -ovc copy leaves the rotation untouched.
With lavc encoding, files are rather small:
x264 provides better image-quality, but the files are larger:
The Parameter rotate has the following meaning:
|0||Rotate by 90 degrees clockwise and flip (default).|
|1||Rotate by 90 degrees clockwise.|
|2||Rotate by 90 degrees counterclockwise.|
|3||Rotate by 90 degrees counterclockwise and flip.|
Some more tricks
Saving a (preview-) image: