xiph / xiph/opus

Is NE10 still useful?

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Dominant language
C
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Description

I am layman user of the codec. I chanced upon the NE10 switch while trawling the source code to find ways through which I could help improve the audio output performance of ExoPlayer since I was getting audible glitches. This was quite some time back. Meanwhile, it seems that the good folks at Google have added some NEON related things to opus (pardonne moi for my complete ignorance).

I have no idea whether NE10 has any utility any more, and whether removing it would have any impact. Furthermore, is there a need/mechanism to activate the NEON related things added to the codec or are they automatically activated?

Apologies for the dumb queries.

@mjbshaw @jmvalin

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by tracing the NE10 switch mentioned in the source and comparing it with the NEON-related code added to Opus. Determine whether NE10 is still used, whether its removal would affect output performance, and how the NEON paths are activated; the issue is resolved only when those questions have a documented answer.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
audio-video-rtc
Issue type
Refactor
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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