1482605 - Add preliminary support for Opus channel mapping version 2

Status: RESOLVED FIXED

(Core :: Audio/Video: Playback, enhancement)

Description

[Jean-Yves Avenard [:jya]]

As per https://tools.ietf.org/html/draft-ietf-codec-ambisonics-08

"From a technical perspective, the only change required here is that the media parser should not fail when seeing channel mapping = 2, which I think is what's currently breaking media playback for these formats. (To reproduce, open youtu.be/WqCH4DNQBUA in FF with Chrome's useragent override, otherwise we serve AAC to FF)  
"

so this change is to only allow decoding those streams without producing errors. Channels order would be left unchanged.

Comment 1

[Jean-Yves Avenard [:jya]]

Attachment: Bug 1482605 - Don't error on Opus channel mapping version 2. r?padenot

We do not perform any channels placement, instead we leave the channels in the order they come in.

Comment 2

[Paul Adenot (:padenot)]

Comment on attachment 8999392 [details]
Bug 1482605 - Don't error on Opus channel mapping version 2. r?padenot

Paul Adenot (:padenot) has approved the revision.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/0dcc490db922
Don't error on Opus channel mapping version 2. r=padenot

Comment 4

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/0dcc490db922