[vlc-devel] [PATCH] avcodec: remove the VLC DSP mask

Jean-Baptiste Kempf jb at videolan.org
Mon Feb 24 10:11:35 CET 2014

Le 24/02/2014 10:04, Rafaël Carré a écrit :
> Hello,
> On 02/22/14 18:34, Rémi Denis-Courmont wrote:
>> libavutil will always check for all CPU features that it understands,
>> even those VLC masked. Thus masking features provides no savings.
>> libavutil runs more tests than VLC. Depending on the platform and
>> operating system combination, libavutil is either as conservative or
>> more conservative than VLC. As such masking features provides no extra
>> safety.
>> So overall, GetVlcDspMask() is useless, at least nowadays.
> OK

Not really OK for me.

As far as I remember, this detection in libav never worked for non-NEON 
cortex A9 devices, aka tegra2.
So, if this is still the case, this is a clear no from me.

Jean-Baptiste Kempf
http://www.jbkempf.com/ - +33 672 704 734
Sent from my Electronic Device

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