[FFmpeg-devel] [PATCH] Allow setting mode MONO in libmp3lame if the library is greater than 3.97

[Stefano Sabatini]

On date Wednesday 2010-08-18 08:32:59 +0100, M?ns Rullg?rd encoded:
> Tomas H?rdin <tomas.hardin at codemill.se> writes:
> 
> >> > ok, but this needs a configure check to make sure lame is not too old
> >> >
> >> >
> >> I look at the ffmpeg configure, and i was thinking to use
> >> check_cpp_condition, however lame does include their version in the lame.h.
> >> The only way to get their version is to call some of their function which
> >> return a char*.
> >> 
> >> so not sure how to do the check in the configure unless adding another
> >> function specific to lame verification checking.
> >> 
> >> Any idea? suggestion?
> >
> > Couldn't you have configure create a small programs that prints that
> > string, run it and parse and test the version number from the output?
> 
> No, that would fail when cross-compiling.

Fix libmp3lame?

But then we would only work with very recent versions of libmp3lame,
thus breaking compilation with most distributed versions of
libmp3lame.

I believe this is the right direction though (and people can use
FFmpeg 0.6 in the meaningwhile).

Regards.
-- 
FFmpeg = Fostering and Faithful Magic Powerful Erudite Gadget