[theora] Fwd: NHW Project - speed comparison with x265

Thu Nov 30 13:23:40 UTC 2017

---------- Forwarded message ----------
From: Raphael Canut <nhwcodec at gmail.com>
Date: 2017-11-30 14:22 GMT+01:00
Subject: Re: [theora] NHW Project - speed comparison with x265
To: fboehm <fboehm at aon.at>

Hi Franz,

Many thanks for your answer!!!

> I appreciate your enthusiastic work on such a complex project like
writing a video codec

Yes, for now the NHW codec is more an image codec actually, would need to
add inter frame mecanism (motion estimation, motion compensation) to the
codec to become a real video codec.The NHW Project is more a
proof-of-concept in its currents state to validate for example the wavelet
transform, the multistage residual coding, the compression schemes, and
other processings, that are new and royalty-free.Do you think I can have a
freelance contract with minimum salary to do this, because completing and
finishing the codec will require me full-time work.

> Instead you have to find some other (maybe niche) use-case where your
codec works well and can blossom. As an example, maybe some sort of
decentralized/peer-to-peer Internet enthusiasts > would enojy using your
codecto develop some sort of open-source alternative to Skype.

Would be just great to find a use-case for the NHW codec! If you and/or
other Xiph community members would know such potential use-case,
niche-case, do not hesitate to let me know!

> To make a long story short: to gain more publicity you really have to
create a website with visual presentations of your codecs quality. And
please, please, please present your results in an
> appealing way. In the base case use a javascript-image-slider effect.

Yes the NHW Project lacks a good website with good visuals.But I won't be
able to do this website alone...

As you suggest, maybe Xiph.org wants to host and help with the NHW Project
website? -Would be just great!-

Again thank you very much for your kind help, it is much appreciated.

Kind regards,
Raphael

2017-11-30 11:58 GMT+01:00 fboehm <fboehm at aon.at>:

> Hi Raphael,
>
> since quite a while I'm reading your updates on your NHW project with
> great interest.
>
> I have to admit I'm no video codec developer. My interest in video codecs
> is pretty simple. Several years ago I was working on a (non-commercial)
> video streaming project that I wanted to base on an open-source video
> codec. Those I was constantly scouting for open source video codec
> innovations.
>
> I appreciate your enthusiastic work on such a complex project like writing
> a video codec. As you already realized it's similarly challenging to
> attract other people to join or use a new video codec.
>
> What I unfortunately can say for sure is, that it's almost impossible to
> attract mobile/semiconductor industry to embed such a codec into their
> chipsets. Instead you have to find some other (maybe niche) use-case where
> your codec works well and can blossom. As an example, maybe some sort of
> decentralized/peer-to-peer Internet enthusiasts would enojy using your
> codecto develop some sort of open-source alternative to Skype.
>
> To make a long story short: to gain more publicity you really have to
> create a website with visual presentations of your codecs quality. And
> please, please, please present your results in an appealing way. In the
> base case use a javascript-image-slider effect. Example:
>
> https://codyhouse.co/demo/image-comparison-slider/index.html
>
> And of course it would be great if Xiph could host your demo website.
>
> All the best,
> Franz
>
>
> Am 2017-11-27 um 20:33 schrieb Raphael Canut:
>
>> Hello,
>>
>> I am very slowly working on the NHW Project.I recently made a speed
>> comparison with x265 and wanted to share it with you.
>>
>> On my processor Intel Core i5-6400, in average the NHW encoder (totally
>> unoptimized) is x10 times faster to encode than x265 (png decoding time
>> removed), in average 30ms vs 300ms for a 512x512 24bit color image, and in
>> average the NHW decoder (totally unoptimized) is x3 times faster to decode
>> than x265 (output to .ppm file), in average 10ms vs 30ms.
>>
>> As a reminder, x265 is ultra optimized, so with good C optimization, SIMD
>> optimization and multithreading, the NHW codec will be x40 times faster to
>> encode and x12 times faster to decode than x265 or even more, so this
>> confirms that the NHW Project could be a good candidate for the mobile
>> device market.
>>
>> At mid-compression, quality-wise I find (visual tests) that the NHW codec
>> and x265 are on par, sometimes more neatness is better, sometimes more
>> precision is better, and a lot of improvements remain to be done for the
>> NHW codec.
>>
>> If there are engineers from mobile device companies on this forum, could
>> you consider the NHW Project or is it too late it will be AOM AV1 or HEVC
>> despite their high power consumption?
>>
>> Monty, would it be possible that the NHW Project has a Xiph.org page to
>> encourage and boost its development?
>>
>> Any answer welcome!
>>
>> Cheers,
>> Raphael
>>
>>
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>>
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