Sciencemadness Discussion Board

video problem

Jor - 8-11-2009 at 16:09

Not really chemistry related but...

I got a request from somebody on youtube to post a video of a tour in my homelab. So I did:

http://www.youtube.com/watch?v=NM5CjTwyNRo

However the video is dark. When filming the cupboard on the right, the dessicator, glasware and acids can hardly be seen, while watching the file saved on my computer, I do see all these things.

How come this happens?

woelen - 9-11-2009 at 11:11

This depends on the video decoder software, used during the playback. I also see differences in videos on my website. With the VLC media player (which I have made the default player) some videos show excessive flickering and intense variations in brightness, while the video itself was made in constant daylight (overcast day, constant fairly bright daylight). With the Microsoft media player, there is no such flicker. Apparently different software versions use different codecs.

I'm not sure how Youtube works and whether you can select the codec for playback. But I have the strong impression that this is the direction in which you have to search the solution for your problem.

Paddywhacker - 9-11-2009 at 23:46

I have nearly always found that downloading and installing the latest K-Lite mega-codec pack fixes any problem with playing video.
http://www.codecguide.com/download_kl.htm

And Virtualdub is my software of choice for video editing.
http://virtualdub.sourceforge.net/