Fwd: Quick question on WebP

[Vikas Arora]

Routing to webp-discuss

---------- Forwarded message ----------
From: kumara Venkatesh Palani <venkates...@gmail.com>
Date: Thu, Sep 22, 2016 at 9:53 PM
Subject: Quick question on WebP
To: vik...@google.com


Hello Vikas,
I am looking into WebP and have a quick question, hope you don't mind helping me. Does WebP use standard quantization tables meaning the quantization table is not sent as part of the file ? If so where is the quantization level stored/encoded in the file ?

Thanks,
Venkatesh

[Urvang Joshi]

+WebP Discussion for the benefit of the group

Hi Venkatesh,

WebP lossy uses the same format as an intra frame of VP8, so the dequantization tables in VP8 spec apply.

Specifically, see:

https://tools.ietf.org/html/rfc6386#section-9.6 and

https://tools.ietf.org/html/rfc6386#section-14 

On Thu, Sep 22, 2016 at 9:57 PM kumara Venkatesh Palani <venkates...@gmail.com> wrote:

Hello Urvang,

I am looking into WebP and have a quick question, hope you don't mind helping me. Does WebP use standard quantization tables meaning the quantization table is not sent as part of the file ? If so where is the quantization level stored/encoded in the file ?

Thanks,
Venkatesh

--

Thanks & Regards,

Urvang