[FFmpeg-devel] [PATCH 0/5] Integer scalar product DSP functions

Michael Niedermayer michaelni at gmx.at
Wed May 8 19:23:09 CEST 2013

On Wed, May 08, 2013 at 02:51:46PM +0000, Christophe Gisquet wrote:
> Those functions generally work in batch of 16 elements, but some cases
> need batches of 8. The first 2 patches only matter for ra144, and alternate
> patch ra144-pad-buffer-and-use-scalarproduct_int16.patch is probably a better
> idea.

> wma pro lossless also would need such a modification, but I have never found
> any sample actually requiring it.

If theres no file that uses it then its probably better not to
compicate asm code but rather use the C code as your
"wmaprolossless: switching back to C dsp function" patch does

> Christophe Gisquet (5):
>   dsputil: modify scalarproduct_int16 to handle mod8 numbers of loops.
>   ra144: use scalarproduct_int16

>   dsputil: allow scalarproduct_and_madd_int16 to handle mod8 number of
>     loops

>   wma lossless: reuse scalarproduct_and_madd_int16
>   wmaprolossless: switching back to C dsp function

these 2 patches both change wmalosslessdec.c but one calls it

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Freedom in capitalist society always remains about the same as it was in
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