ffmpeg help - how to convert multiples input files to one file using ffmpeg?

Question

I have been trying to convert from multiple input streams of mpeg files into one flv file.
It only converts the last input file to flv and all others are ignored.
This is a sample commandline instruction:
>ffmpeg -i movie1.mpg -i movie2.mpg -i movie3.mpg bigmovie.flv

Thanks

Answer 1

That's a problem, because how do you deal with multiple streams? You should use another software to combine the mpgs into one stream. You'll have to decide whether it's a linear append, layering them simultaneously, blending, etc.. Once you have a single AV stream, convert that using ffmpeg.

Answer 2

From what I study, mjpeg isn't a typical. each and each digital camera producer has their own proprietary codec (many times residing house windows) and ffmpeg won't use proprietary stuff. I definitely have an mpeg recorder that treatments maximum of ills of incompatibllity and from there I convert to what i choose. My cameras use .avi, mpeg, and dv-uncooked.