[FFmpeg-devel] [PATCH 2/2] cmdutils: Fix cpuflags so the flags dont pull in and out other flags.

Michael Niedermayer michaelni at gmx.at
Wed Mar 14 22:48:19 CET 2012

On Wed, Mar 07, 2012 at 06:37:28AM +0100, Michael Niedermayer wrote:
> Note, this doesnt really break compatibility with libav, as libav (anton)
> has implemented a more complex and more limited system under the same
> -cpuflags command line option we used since some time. Thus anton
> just a few hours ago broke compatibility.
> I could try to stay compatible and drop or reimplement our features
> in the more primitive design. But as this is
> mainly for debugging and not normal end users  i think droping
> compatibility for the sake of code quality is worth it for this.
> But comments are very welcome! Maybe also someone has a differnt
> oppinion / usecase or view on this, Iam very interrested in that,
> after all i could be missing something ...
> The differences to libav for example are we can do things like
> ffmpeg -cpuflags -sse+mmx -cpuflags +3dnow
> Its also possible in our system to force flags that have not been
> detected as available
> And our -cpuflags works with all tools not just 1
> Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

commited with a somewhat less inflamatory commit message

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Incandescent light bulbs waste a lot of energy as heat so the EU forbids them.
Their replacement, compact fluorescent lamps, much more expensive, dont fit in
many old lamps, flicker, contain toxic mercury, produce a fraction of the light
that is claimed and in a unnatural spectrum rendering colors different than
in natural light. Ah and we now need to turn the heaters up more in winter to
compensate the lower wasted heat. Who wins? Not the environment, thats for sure
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