Need Command Line video joiner (preferably free tools)

[Nintynuts]

I'm working on a project to join/combine/concatenate/merge multiple wmv, mpg and avi files (not together), with the same audio and video bit rate.

I need command line programs I can interface with c++ to generate these files automatically.

I have already tried mencoder and the files wont play afterwards.
If you can suggest ways to fix it, this would be great too.

I have managed to find asfbin for wmvs, but I would much rather have one program for all.

Another thing which would be useful is automatic trimming for overlapping video files (and start and end titles) but I realise this is really unlikely

If you have multiple or all-in-one suggestions I'd love to know

Thanks

Nintynuts

[poisondeathray]

try ffmpeg

[Nintynuts]

I downloaded the 64 bit version, but I cant find any documentation about joining files without conversion

do you know the right commands?

[poisondeathray]

Check the ffmpeg faqs

http://ffmpeg.org/faq.html#SEC29

If you're still having problems, it might be your files are not compatible (different specs)

[llrj67]

The WMFSDK has a command line sample called WMVAppend that accepts only 2 WMV or WMA files. I found a rework of it that allows it to accept more that 2 files, but it has a command line limit. The site is:
http://www.yoshichika.com/wiki/?SoftWare%2FWMVConcat

Unfortunately it's in Japanese, but the code isn't. The GUI is in C#.
I've been working on a rework of that program myself to get rid of the CLI, but i'm having trouble getting more than 67 files to concatenate without skipping over the error checking.

[Nintynuts]

the example you gave me seems to require intermediate transcoding for non-mpeg files.

I need one which merges the existing video as is, using the original streams for avi, wmv and mpeg (mpg)

I have boilsoft's software which does exactly what I need but doesn't work through the command line so for this project it's not suitable

asfbin worked perfectly on the wmv files, maybe I could get some suggestions for individual avi and mpg joining?

mencoder is supposed to do all this but it isn't working for me for some reason, again any useful suggestions are welcome.