[x265] [PATCH] motion: skip the ME search if any of MVC sad cost is zero

[Gopu Govindaswamy]

Yes fixed the issue for  vc 11 32 bit compiler and i will resend the patch
with the detailed commit message (effect of the performance and quality
changes)

On Mon, Jun 29, 2015 at 11:33 AM, Deepthi Nandakumar <
deepthi at multicorewareinc.com> wrote:

> This crashes on 3 of the first 5 commandlines in the smoke test.
>
> On Fri, Jun 26, 2015 at 10:57 AM, <gopu at multicorewareinc.com> wrote:
>
>> # HG changeset patch
>> # User Gopu Govindaswamy <gopu at multicorewareinc.com>
>> # Date 1435296461 -19800
>> #      Fri Jun 26 10:57:41 2015 +0530
>> # Node ID 6d7b0c5585cc6498ef40ddcf4a0d3c241892d5bf
>> # Parent  09193c05af52b2024635037dbf9fa19d4b978e4b
>> motion: skip the ME search if any of MVC sad cost is zero
>>
>> diff -r 09193c05af52 -r 6d7b0c5585cc source/encoder/motion.cpp
>> --- a/source/encoder/motion.cpp Fri Jun 26 10:16:29 2015 +0530
>> +++ b/source/encoder/motion.cpp Fri Jun 26 10:57:41 2015 +0530
>> @@ -646,7 +646,15 @@
>>          MV m = mvc[i].clipped(qmvmin, qmvmax);
>>          if (m.notZero() && m != pmv && m != bestpre) // check already
>> measured
>>          {
>> -            int cost = subpelCompare(ref, m, sad) + mvcost(m);
>> +            int cost = subpelCompare(ref, m, sad);
>> +            // skip ME Search if any of MVC sad cost is zero
>> +            if (!cost)
>> +            {
>> +                outQMv = m;
>> +                return mvcost(m);
>> +            }
>> +            else
>> +                cost += mvcost(m);
>>              if (cost < bprecost)
>>              {
>>                  bprecost = cost;
>> _______________________________________________
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>> x265-devel at videolan.org
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>>
>
>
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>


-- 
Thanks & Regards
Gopu G
Multicoreware Inc
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