Wednesday, August 29, 2012

WinFF- a GUI for FFmpeg video conversion

I've used FFmpeg to Resize video for Android and now to convert video for the Innotab. I found the command on A Maggid's Musings, along with a nice GUI for FFmpeg, called WinFF. After adding the FFmpeg command as described, you can easily add a bunch of video files and leave WinFF to convert them.

Here's my FFmpeg command for converting video files for the Innotab:

-s 480x272 -aspect 1.777 -vcodec mjpeg -b 1800k -r 15 -acodec pcm_s16le -ar 20050 -ac 1 -vol 512

I've modified it to make videos full screen on the Innotab. Although this may involve altering the aspect ratio quite a bit (the Innotab is wide screen), videos seem to be more watchable using all of the screen.

I've also added a volume boost because the audio channel can come out very quite. -vol 512 doubles the volume. The command goes up from zero boost in increments of 256: 256, 512, 768, 1024- but higher levels introduce a lot of distortion.

Incidentally, if Dora the Explorer needs a singing map to tell her that to get to the Library she must cross the troll bridge and climb a bigggg rock, how did she get the eight library books in the first place?

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