ffmpeg: same compilations behaving differently across different machines

Question

I am using ffmpeg on two of my Ubuntu hardy boxes. Both of them have same version of pre-compiled binaries of FFMPEG from Medibuntu. When I convert 3GP to FLV, on one machine ffmpeg distorts sound while on the other it works fine.

I have checked the version and formats options and they are all identical across the machines.

The only difference is that one machine is 64-bit while the other is 32-bit. Could this be the cause of the problem? If that is the case how do I get it resolved?

Answer 1

Yes, 32- vs. 64-bit could be the problem. To solve, first I'd try grabbing the most recent ffmpeg sources from http://ffmpeg.org and compiling them yourself.

Second, assuming its the 32-bit version that works, I'd just use the 32-bit version on the 64-bit host. You may need to install some 32-bit library to make this work, or compile it statically.

Also, you could try a different audio codec, or different parameters.