Open source converter which can convert mp4 to 3gp and 3gp to mp4 [closed]

Question

please provide me link of good open source exe which i can call from .net and convert mp4 to 3gp and 3gp to mp4.

Thanks

Answer 1

Finally i got the answer: using ffmpeg we can do it like:

ffmpeg -y -i input.mp4 -r 20 -s 352x288 -b 400k -acodec libfaac -ac 1 -ar 8000 -ab 24k file.3gp

Answer 2

Also take a look at mp4box.

With ffmpeg, you usually doing remux only. Such as,

ffmpeg -i " " -acodec copy -vcodec copy ....