[FFmpeg-user] Problem trying to convert PAL file to NTSC

[Etienne Buira]

On Fri, Mar 18, 2011 at 07:25:17PM -0400, vsethi at iglou.com wrote:
> belcampo wrote:
> 
> > I don't know which distribution of linux you are using; or would be able 
> > to compile one yourself. On http://www.ffmpeg.org/download.html at the 
> > bottom of the page are versions 5.3 and 6.1 from 2010 October. These are 
> > source files which  you have to compile yourself.
> 
> I have built ffmpeg 6.1 and it produces the same result (same error messages).
> Since I am unfamiliar with the ffmpeg package overall, all I can think of
> are the following possibilities:
> 
> 1.  ffmpeg is missing (although not complaining about missing) some file
>     that it needs.  (A library perhaps?)
> 2.  there is a duplication of file names in the filesystem that is causing 
>     ffmpeg to consult the wrong file.

You can make sure using which ffmpeg and ldd /path/to/ffmpeg

> 3.  ffmpeg just cannot process my file.
> 4.  ???
> 
> Short of going into the source code and trying to figure out what ffmpeg 
> is trying to do and guessing why it cannot do it, I don't know what
> else to try.  (Well, I guess there's the debugger.)

Is that different if you try ffmpeg -f mpeg -i inputfile.mpg ?
(You can try some other formats instead of mpeg, depending which you see
relevant, from the list given by ffmpeg -formats | grep -i mpeg | grep'^ D').