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42

answers:

1
Q: 

How to convert a .flv file into .mp4/.ogg format for playing on smartphones with ffmpeg?

Simple like this is not enough:

ffmpeg -i input.flv output.mp4

Anyone knows how youtube managed to convert arbitrary video files to the format acceptable by smartphones?

A: 

Try ffmpeg -i [file].flv -ar 22050 [file].mp4

 2010-06-20 14:42:25
Can you explain what's `-ar 22050` for here?
 2010-06-20 14:53:17

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