[FFmpeg-devel] [PATCH 0/2] x86: hevc_mc: port to SSSE3

[James Almer]

On 23/08/14 11:55 AM, Timothy Gu wrote:
> On Aug 23, 2014 7:47 AM, "James Almer" <jamrial at gmail.com> wrote:
>>
>> On 23/08/14 11:07 AM, Mickaël Raulet wrote:
>>> For 10bits and 12bits, they should stay sse4 as well because of
> packusdw. You need some instructions to convert it to ssse3 see below
>>>
>>>
>>> static av_always_inline __m128i _MM_PACKUS_EPI32( __m128i a, __m128i b )
>>> {
>>>      a = _mm_slli_epi32 (a, 16);
>>>      a = _mm_srai_epi32 (a, 16);
>>>      b = _mm_slli_epi32 (b, 16);
>>>      b = _mm_srai_epi32 (b, 16);
>>>      a = _mm_packs_epi32 (a, b);
>>>     return a;
>>> }
>>
>> There's a PACK macro in lavfi/x86/yasm-16.asm that does this without
> intrinsics.
> 
> You meant yadif-16, right?
> 
> Timothy

Oops, yes i meant that :P