[FFmpeg-devel] [PATCH]VDPAU patch for VC1 decoding, round 1

Aurelien Jacobs aurel
Mon Jan 12 00:51:48 CET 2009


Diego Biurrun wrote:

> On Mon, Jan 12, 2009 at 12:12:41AM +0100, Aurelien Jacobs wrote:
> > Aurelien Jacobs wrote:
> > 
> > > Diego Biurrun wrote:
> > > 
> > > > On Wed, Jan 07, 2009 at 10:50:39PM +0100, Carl Eugen Hoyos wrote:
> > > > >
> > > > > --- libavcodec/vc1.c	(revision 16481)
> > > > > +++ libavcodec/vc1.c	(working copy)
> > > > > @@ -4317,3 +4338,35 @@
> > > > > +
> > > > > +#if ENABLE_WMV3_VDPAU_DECODER
> > > > 
> > > > Using ENABLE_ here is still wrong...
> > > 
> > > I disagree. Using #if ENABLE_ is better than #ifdef CONFIG_.
> > > It is more readable, shorter, and more consistent especially
> > > in cases such as:
> > >   #if   ENABLE_A
> > >   #elif ENABLE_B
> > >   #endif
> > > or
> > >   #if ENABLE_A || ENABLE_B
> > > 
> > > Moreover, #if gives a chance to the compiler to complain if
> > > there is a typo in the symbol name. With #ifdef, such a
> > > typo could stay unnoticed for a long time.
> > > 
> > > Now I expect some answer about consistency because the code
> > > supposedly contains more occurence of #ifdef CONFIG_ than
> > > #if ENABLE_.
> > > The attached patch solves this by replacing all usage of
> > > CONFIG_ by ENABLE_.
> > > With this applied, we could also drop all CONFIG_ from
> > > config.h.
> > 
> > It seems there is no objection to this patch anymore ?
> > If so, I will commit soon.
> 
> The patch replacing all CONFIG_s with ENABLE_s?
> 
> I don't like it.  However, we can discuss a patch that gets rid of
> the ENABLE_s.

What do you propose exactly ?
Do you want to replace this:

if (ENABLE_XXX && condition) {
}

by this:

#ifdef CONFIG_XXX
if (condition) {
}
#endif

If that's what you mean, I'm opposed to it.

Aurel




More information about the ffmpeg-devel mailing list