[Libav-user] reduce dll size

Carl Eugen Hoyos cehoyos at ag.or.at
Tue Mar 4 01:14:28 CET 2014

YIRAN LI <mrfun.china at ...> writes:

> I'm building ffmpeg dlls for Windows using MingW, and 
> the dlls I got seems quite large. libavcodec 8 MB and 
> libavformat 1.5 MB.

This sounds like unstripped sizes, as explained you 
normally want stripped libraries (that are significantly 
If you don't need all decoders, use the configure option 
--disable-everything and enable the parts of FFmpeg you 
need (there are also --disable-encoders and friends, see 
configure --help).

You may want to test the result of your configure line, 
note that for example some demuxers have dependencies 
that are not immediately obvious, and parsers are often 

Note that combining libavcodec and libavformat into one 
library is not supported here, if you do it, please do 
not ask for support;-)

(You may of course ask for support if your particular 
configure line does not work the way you need it: Just 
post it and tell us what doesn't work.)

Carl Eugen

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