mencoder - how to get info about the video file

[MaxSt]

I'm thinking about writing a small specialized GUI for mencoder, and I would need to get some information (resolution, aspect ratio, etc) about the source file before the convertion.

Is there a way mencoder could simply read the source file and print the properties into stdout?

Thank you.

[killerhex]

you can add mediainfo

[MaxSt]

I don't think that's a good idea.

I would prefer using mencoder.

[DarkZell666]

Simply set mencoder to encode the first 2 or 3 frames ?
There are switches to set mencoder so start at frame <f> and encode <n> frames IIRC.

Edit: just found the "-frames n" switch, it encodes the first n frames and quits.

[MaxSt]

That gave me the idea...

Apparently if I skip "-oac" and "-ovc" options, mencoder prints the source video info, and then exits with error message!

That is enough:
mencoder.exe source.avi -o zzz.avi