[Libav-user] Building with MSVC toolchain resulting in seeking problem?

Carl Eugen Hoyos cehoyos at ag.or.at
Tue Mar 12 16:04:15 CET 2013

Bjoern Drabeck <bjoern.drabeck at ...> writes:

> > Just guessing here, but it does not seem impossible 
> > that the extra steps required to build using MSVC 
> > introduce some sort of glue code, 

I don't think there is any glue code.
(Remember the gcc bugs you recently found, a but 
in msvc - or in the FFmpeg code - is not less likely.)

> > and that might include seek-related code that is 
> > particularly non-optimal.

It could of course be related to the glue code mingw 

> > Is there any reason to build ffmpeg with MSVC, rather 
> > than using mingw with msys or a mingw cross-compiler 
> > on a simple linux VM?

Apart from the fact that I still cannot understand why 
building with a cross-compiler in a VM can be easier than 
doing a native mingw build: For years, this was one of the 
most often requested "features", probably to allow 
debugging within msvc.

> the main reason was basically just for convenience 
> (build it all from just one place; also linux environments 
> are new to me).. seemed to work fine at first, and was 
> quite quick to set up... 

Thank you for posting this, I wondered how difficult it is!

> But right now am just thinking about setting up Ubuntu to 
> see if I can get it to build correctly like that.. 

I believe you had to install mingw to use msvc, 
the gcc compiler you installed should work fine, no reason 
to setup Ubuntu to compile for win32.

Carl Eugen

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