ffmpeg - "The encoder 'aac' is experimental but experimental codecs are not enabled"

Question

While converting flv to mp4 conversion using FFMPEG it's showing following error

[aac @ 0x2b4b640] The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.

Answer 1

Actually it is not enough to add -strict -2 to the command line. It is very important where the -strict -2 is added and unfortunately this is not explained in the error message. It should be just before the last argument, that is, as follows:

ffmpeg -i infile -strict -2 outfile