[FFmpeg-devel] [PATCH 01/10] zlib decoder

[Michael Niedermayer]

Hi

On Mon, Jul 16, 2007 at 08:44:57AM +0200, Reimar D?ffinger wrote:
> Hello,
> On Mon, Jul 16, 2007 at 12:25:14AM +0100, M?ns Rullg?rd wrote:
> > Michael Niedermayer <michaelni at gmx.at> writes:
> [...]
> > >> +static void
> > >> +copy_bytes(uint8_t *dst, uint8_t *src, unsigned int len)
> > >> +{
> > >> +    while (len--)
> > >> +        *dst++ = *src++;
> > >> +}
> > >
> > > i think we have such a copy routine somewhere already, but i dont remember
> > > where
> > 
> > Reimar said it looked familiar too.  Wherever it is, it's not in a
> > central location.  Where would be the appropriate place for a function
> > like this?
> 
> It is in libavutil/lzo.c, but it is quite lzo specific since the
> boundary checks are currently in the function, it assumes src and dst
> are in the same memory area and for LZO a output buffer that is padded
> by IIRC 12 additional bytes is necessary to get up to speed.
> And the function is called copy_backptr.

theres also xan.c bytecopy()

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I know you won't believe me, but the highest form of Human Excellence is
to question oneself and others. -- Socrates
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