[Ffmpeg-devel] [PATCH] Optimization of 'dct_unquantize_h263_intra'?for ARM (armv5te) (try2)

Diego Biurrun diego
Sun Jan 7 00:08:59 CET 2007


On Sat, Jan 06, 2007 at 11:59:51PM +0200, Siarhei Siamashka wrote:
> On Saturday 06 January 2007 23:34, Diego Biurrun wrote:
> 
> > On Sat, Jan 06, 2007 at 06:07:53PM +0200, Siarhei Siamashka wrote:
> > > --- libavcodec/armv4l/mpegvideo_armv5te.c	(revision 0)
> > > +++ libavcodec/armv4l/mpegvideo_armv5te.c	(revision 0)
> > > @@ -0,0 +1,211 @@
> > > +/*
> > > + * The simplest mpeg encoder (well, it was the simplest!)
> >
> > Is this a complete MPEG encoder?  It seems to me this comment is plain
> > wrong.
> >
> > > + * Copyright (c) 2000,2001 Fabrice Bellard.
> > > + * Copyright (c) 2002-2004 Michael Niedermayer <michaelni at gmx.at>
> >
> > I'd rather say that your name and the year 2007 belongs there.
> 
> Sure, license was copied from mpegvideo.c as this code is entirely based on
> it. I only did the job of a codegenerator translating from C to ARM assembly 
> (and also using some other additional information to optimize). I would not
> claim full copyright on this code.
> 
> Also some other people may want to add optimizations for other functions, such
> as dct_unquantize_mpeg1_* and dct_unquantize_mpeg2_*, so they would need
> to add their copyright somewhere.
> 
> So what should I do to fix this copyright information properly?

State what the file does, i.e. provide optimized functions for MPEG
decoding or encoding.  Add your name with a copyright year and say what
it is based on, possibly with some more copyright statements.

Diego




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