[FFmpeg-devel] [PATCH] avfilter/avf_showcqt: cqt_calc optimization on x86

[James Almer]

On 6/6/2016 11:49 PM, Michael Niedermayer wrote:
> On Tue, Jun 07, 2016 at 08:07:45AM +0700, Muhammad Faiz wrote:
>> On Sat, Jun 4, 2016 at 2:36 PM, Muhammad Faiz <mfcc64 at gmail.com> wrote:
>>> benchmark on x86_64
>>> cqt_time:
>>> plain = 3.292 s
>>> SSE   = 1.640 s
>>> SSE3  = 1.631 s
>>> AVX   = 1.395 s
>>> FMA3  = 1.271 s
>>> FMA4  = not available
>>>
>>> untested on x86_32
>>>
>>> Signed-off-by: Muhammad Faiz <mfcc64 at gmail.com>
>>> ---
>>>  libavfilter/avf_showcqt.c          |   7 ++
>>>  libavfilter/avf_showcqt.h          |   3 +
>>>  libavfilter/x86/Makefile           |   2 +
>>>  libavfilter/x86/avf_showcqt.asm    | 206 +++++++++++++++++++++++++++++++++++++
>>>  libavfilter/x86/avf_showcqt_init.c |  63 ++++++++++++
>>>  5 files changed, 281 insertions(+)
>>>  create mode 100644 libavfilter/x86/avf_showcqt.asm
>>>  create mode 100644 libavfilter/x86/avf_showcqt_init.c
>>>
>>
>> I want to apply this patch but I'm not sure if it works on
>> x86_32 or not (I didn't test it on x86_32)
> 
> i had tested fate with it applied on x86_32 earlier today but i think
> this filter isnt tested with fate ...

It's not http://coverage.ffmpeg.org/src/libavfilter/index.html
Most filters aren't, for that matter.

> 
> testing x86_32 is easy:
> --arch=x86_32 --target-os=linux --extra-cflags=-m32 --extra-ldflags=-m32  --enable-cross-compile
> 
> [...]
> 
> 
> 
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