[FFmpeg-devel] [PATCH] avcodec/x86: add an 8-bit simple IDCT function based on the x86-64 high depth functions

[Michael Niedermayer]

On Thu, Jun 15, 2017 at 05:08:33PM +0200, James Darnley wrote:
> Includes add/put functions
> 
> Rounding contributed by Ronald S. Bultje
> ---
> I must be stupid.  I dropped the stack space change somewhere.
> 
>  libavcodec/tests/x86/dct.c       |  2 +
>  libavcodec/x86/idctdsp_init.c    | 23 ++++++++++
>  libavcodec/x86/simple_idct.h     |  9 ++++
>  libavcodec/x86/simple_idct10.asm | 94 ++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 128 insertions(+)

theres something wrong with this
it totally breaks this:
make -j12 ffmpeg && ./ffmpeg -ss 1 -i cache:matrixbench_mpeg2.mpg -t 2 -y test.avi
./ffplay test.avi

(totally as in bitstream errors not some idct artifacts)

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Old school: Use the lowest level language in which you can solve the problem
            conveniently.
New school: Use the highest level language in which the latest supercomputer
            can solve the problem without the user falling asleep waiting.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20170616/0073fcd8/attachment.sig>