[Libav-user] Converting audio sample buffer format

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Feb 25 11:39:27 CET 2013

René J.V. Bertin <rjvbertin at ...> writes:

> >In any case, using gdb should quickly show you were the 
> >problem lies.
> Exactly, but you'd need to build the libav libs yourself, 
> with debugging info.

One could argue that on this mailing list, only self-compiled 
FFmpeg is supported (because you should get support wherever 
you download your binaries).

> There's another thing that's nagging me. IIUC, the goal here 
> is to convert a buffer of (C) floats into signed shorts. I 
> have some difficulty believing that doing this through a 
> generic workhouse function can be more efficient than 
> writing a simple loop and let a good optimising compiler 
> create the best assembly out of it ...

Such a very implausible claim definitely needs 
some performance numbers.
(Or in other words: No, current compilers are 
unable to optimize code the way you expect them.)

Please fix your quotes, Carl Eugen

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