Doom9's Forum - View Single Post - Current Patches, Where to get them, How they affect speed/output

kemuri-_9 · 9th December 2008, 22:55

I've ran comparisons of mingw and msvc builds,
in my case it was gcc 3.4.5 fprofiled and 2008 (vc++ 9) w/ PGO,
and they were fairly close in speeds, so this is not the problem.

there's a few possibilities that would have the MSVC version go slow:
A1. it's in debug configuration (which is extremely slow compared to release)
A2. Release config is not fully optimized.

B. the problem may be that it's not compiling with asm support
make sure HAVE_MMX is defined in the preprocessor section of the
projects.

C. no pthread support
the .vcproj's do not have pthread (nor gpac) support by default,
you'll need to compile, and then add the respective folders to the library and include paths for the x264 and libx264 solutions
(gpac to x264, pthreads to both)
then add in the proper preprocessor defines to have x264/libx264 go looking for them to compile with support.
(MP4_OUTPUT and HAVE_PTHREADS iirc)

9th December 2008, 22:55	#1430 \| Link
kemuri-_9 Compiling Encoder Join Date: Jan 2007 Posts: 1,348	I've ran comparisons of mingw and msvc builds, in my case it was gcc 3.4.5 fprofiled and 2008 (vc++ 9) w/ PGO, and they were fairly close in speeds, so this is not the problem. there's a few possibilities that would have the MSVC version go slow: A1. it's in debug configuration (which is extremely slow compared to release) A2. Release config is not fully optimized. B. the problem may be that it's not compiling with asm support make sure HAVE_MMX is defined in the preprocessor section of the projects. C. no pthread support the .vcproj's do not have pthread (nor gpac) support by default, you'll need to compile, and then add the respective folders to the library and include paths for the x264 and libx264 solutions (gpac to x264, pthreads to both) then add in the proper preprocessor defines to have x264/libx264 go looking for them to compile with support. (MP4_OUTPUT and HAVE_PTHREADS iirc) __________________ custom x264 builds & patches \| F@H \| My Specs Last edited by kemuri-_9; 9th December 2008 at 22:59.