[FFmpeg-devel] [PATCH 2/2] x86/alacdsp: add simd optimized functions

James Almer jamrial at gmail.com
Wed Oct 7 01:32:19 CEST 2015


On 10/6/2015 4:44 AM, Paul B Mahol wrote:
> On 10/6/15, James Almer <jamrial at gmail.com> wrote:
>> On 10/5/2015 6:48 PM, Paul B Mahol wrote:
>>> On 10/4/15, James Almer <jamrial at gmail.com> wrote:
>>>> Signed-off-by: James Almer <jamrial at gmail.com>
>>>> ---
>>>>  libavcodec/alacdsp.c          |   3 +
>>>>  libavcodec/alacdsp.h          |   1 +
>>>>  libavcodec/x86/Makefile       |   2 +
>>>>  libavcodec/x86/alacdsp.asm    | 133
>>>> ++++++++++++++++++++++++++++++++++++++++++
>>>>  libavcodec/x86/alacdsp_init.c |  44 ++++++++++++++
>>>>  5 files changed, 183 insertions(+)
>>>>  create mode 100644 libavcodec/x86/alacdsp.asm
>>>>  create mode 100644 libavcodec/x86/alacdsp_init.c
>>>>
>>>
>>> Have you measured speed gain?
>>
>> About three to four times faster than c.
> 
> I was more interested in overall gain.
> If fate covers this functions and fate still passes it should be fine imho.

Fate passes, so pushed. Thanks.



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