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Issue 629611 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Jul 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Feature



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API ImageDecoder API for plugins

Reported by acte...@gmail.com, Jul 19 2016

Issue description

UserAgent: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2800.0 Safari/537.36

Steps to reproduce the problem:
Need API for custom image decoders, such as FLIF, APNG, etc. API should can override default decoders. And decode for render in IMG, picture and other, without replacement url, and no in canvas or embed. API should directly working with image source and chunks. API should provide WebAssembly/JS api, and low level API, such as ImageFrame. 

What is the expected behavior?

What went wrong?
Nobody support plugins for image decoders (only embed tag). 

Did this work before? No 

Chrome version: 54.0.2800.0  Channel: canary
OS Version: 10.0
Flash Version: Shockwave Flash 22.0 r0
 
Labels: Te-NeedsFurtherTriage

Comment 2 by ajha@chromium.org, Jul 20 2016

Components: Blink>Image
Status: WontFix (was: Unconfirmed)
The image decode methods in Chromium do not support such a thing, and it's hard to see a use case. Specifically, content creators can convert images before serving them, so what circumstances require the browser to support custom decode?

APNG support is coming. Support for other formats may be discussed in the context of each specific format.

Comment 4 by acte...@gmail.com, Jul 20 2016

If need FLIF use in forums, in album, needs native support. 
http://flif.info/example.html

If will support of APNG, will be cool. I can hack canvas for exporting APNG animation. In bad situation possible (I think) use WebAssembly and libpng with export 32-bit APNG. If behavior of export canvas to PNG not changed (i.e. only 32-bit RGBA), possible make APNG animation. 

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