[FFmpeg-devel] DSP function ARM NEON patches for hevc

Tomperi Seppo Seppo.Tomperi at vtt.fi
Sun Feb 15 21:31:32 CET 2015


Hi!

The reason is chroma deblocking which is using q4 without pushing it to stack. :/
Unfortunately I am in Geneve this week and don't have ARM linux board with me so it is not easy to test.

Mickael Raulet: maybe guys at INSA could run tests this week if I make a fix? Could you ask?

I also have SAO, qpel and epel NEON patches for latest FFmpeg. They pass fate-hevc on Jetson TK1, but should be iOS and clobber checked.

-Seppo


________________________________________
From: Michael Niedermayer [michaelni at gmx.at]
Sent: Friday, February 13, 2015 5:38 PM
To: FFmpeg development discussions and patches
Cc: Tomperi Seppo; Mickaël Raulet
Subject: Re: [FFmpeg-devel]  DSP function ARM NEON patches for hevc

On Thu, Feb 05, 2015 at 02:22:28PM +0100, Mickaël Raulet wrote:
> Michael,
>
> Please find some commits that can be cherry picked from
> https://github.com/OpenHEVC/FFmpeg/commits/ffmpeg_patch
>

> Optimized deblocking filter (8bits only)
> 1b9ee47d2f43b0a029a9468233626102eb1473b8

this breaks the neon clobber test see:
fate.ffmpeg.org/report.cgi?time=20150211030204&slot=armv7l-panda-gcc4.6-cortexa8-clobber

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The worst form of inequality is to try to make unequal things equal.
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