[FFmpeg-devel] FFmpeg 0.7.5 is very much slower than FFmpeg 0.7 for decoding [SOLVED]

[Reimar Döffinger]

On Thu, Oct 06, 2011 at 01:51:09AM -0700, Unga wrote:
> --- On Thu, 10/6/11, Reimar Döffinger <Reimar.Doeffinger at gmx.de> wrote:
> 
> > From: Reimar Döffinger <Reimar.Doeffinger at gmx.de>
> > Subject: Re: [FFmpeg-devel] FFmpeg 0.7.5 is very much slower than FFmpeg 0.7 for decoding [SOLVED]
> > To: "FFmpeg development discussions and patches" <ffmpeg-devel at ffmpeg.org>
> > Date: Thursday, October 6, 2011, 2:59 PM
> > 
> > 
> > On 6 Oct 2011, at 01:11, Dominik 'Rathann' Mierzejewski
> > <dominik at greysector.net>
> > wrote:
> > 
> > > On Tuesday, 04 October 2011 at 18:08, Unga wrote:
> > > [...]
> > >> The issue was asm options. 
> > >> 
> > >> The ffmpeg version 0.7-rc1 was installed with asm
> > options. (manual
> > >> compilation)
> > >> 
> > >> ffmpeg version 0.7.5 was installed with asm
> > options disabled!
> > >> (FreeBSD port system)
> > > 
> > > Please ask the port maintainer to enable runtime cpu
> > detection
> > > and not disable asm.
> > 
> > The problem is most likely that they can't compile some ASM
> > due to using an ancient (6 years or so old) binutils
> > version, it only works if you install a newer gcc (the
> > default gcc cannot be made to use a different binutils
> > without horrible hacks).
> 
> Hi Reimar, sorry disagree. I'm a happy user of ffmpeg 0.7.5 on FreeBSD 8. I just compiled and installed without the FreeBSD port system.

As said, in FreeBSD 8 they finally moved to a slightly less ancient
binutils (and also it only affects 64 bit systems), but it is a good
chance that that's the source of the strange ports behaviour.