[FFmpeg-devel] [PATCH 2/5] fate: avoid framemd5, use framecrc its faster

Giorgio Vazzana mywing81 at gmail.com
Sun May 19 10:05:46 CEST 2013


2013/5/19 compn <tempn at twmi.rr.com>:
> On Sat, 18 May 2013 18:03:41 -0400, compn wrote:
>>On Fri, 17 May 2013 22:19:34 +0200, Nicolas George wrote:
>>>L'octidi 28 floréal, an CCXXI, Reimar Döffinger a écrit :
>>>> Care to update to see if it's worth bothering with MD5 further?
>>>
>>>Of course.
>>>
>>>Here are the new results:
>>>
>>>lavu    MD5      size:  1048576  runs:     1024  time:    5.478 +- 0.045
>>>openssl MD5      size:  1048576  runs:     1024  time:    5.069 +- 0.063
>>
>>does polarssl or GnuTLS use the same md5 code?
>
> https://polarssl.org/md5-source-code

For polarssl, they use basically the same implementation, no other
tricks we can borrow I'm afraid.

> gnutls uses libnettle
> http://git.lysator.liu.se/nettle/nettle/trees/master
> http://git.lysator.liu.se/nettle/nettle/blobs/master/md5.c
>
> -compn
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