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[mediacapture-record] Provide a way to specify custom encoder (to generate other types of formats)

From: sole via GitHub <sysbot+gh@w3.org>
Date: Tue, 31 May 2016 13:15:08 +0000
To: public-media-capture@w3.org
Message-ID: <issues.opened-157668702-1464700508-sysbot+gh@w3.org>
sole has just created a new issue for 

== Provide a way to specify custom encoder (to generate other types of
 formats) ==
Right now `MediaRecorder` can only encode in whatever format the 
browser can. This is at odds with building any kind of application 
with reproducible and expectable results - running the same code in 
different browsers might in some cases generate webm and in some other
 cases, mp4. Some users might be able to take the encoded media and 
use it immediately elsewhere but some others won't be able to do that.
 Non tech savvy users are going to be put off by this.

It would be great if instead of specifying the desired `mimeType` 
there was a way to provide the code for a custom encoder during 
`MediaRecorder` instantiation, and have the browser call that code 
periodically as it needs to encode more data.

How the code would look like or work like, I don't know. Perhaps a 
worker? A `MediaRecorderWorker`? A `MediaRecorderEncoderWorker`? But 
this would be in line with the Extensible Web Manifesto, in which 
browsers expose low-ish level APIs that let users build more advanced 
use cases on top. Right now the MediaRecorder API falls slightly short
 in that side.

This is the absolute **number one** feature that developers ask me 
about when I talk about `MediaRecorder`.

Please view or discuss this issue at 
https://github.com/w3c/mediacapture-record/issues/60 using your GitHub
Received on Tuesday, 31 May 2016 13:15:15 UTC

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