1830473 - call decodeAudioBuffer on ogg buffers more then 40 times quickly will always fail

Status: UNCONFIRMED

(Core :: Audio/Video, defect)

Description

[Alynx Zhou]

Steps to reproduce:

I am creating a piano app on https://piano.alynx.one/, it fetches a JSON file, and get 49 base64 encoded ogg audio for different piano keys. Then I decode base64, and use AudioContext.decodeAudioBuffer() in a loop to decode those ogg buffer into audio buffer.

Actual results:

I always get DOMException: The buffer passed to decodeAudioData contains invalid content which cannot be decoded successfully. for the last 9 buffers. If I sort the buffer in another sequence, still the last 9 buffers failed, but different buffers.

Expected results:

All ogg buffers are decoded into audio buffers without error. I tested Firefox on Linux and Chrome on Android, they all work.

Comment 1

[Alynx Zhou]

Oh, this only happens on Firefox Android (Fenix).

Further steps I did and results:

• Use more than one AudioContexts, I even create different AudioContext to different buffer, the error still exists.
• When the first Promise.all() finised, run another loop to re-decode the failed buffers, no error: https://github.com/AlynxZhou/azpiano/commit/8026fdd8fba46dcdfd6d38b81e3166aac165bc70. So I think this only happens when you quickly call decodeAudioBuffer() many times.

Comment 2

[BugBot [:suhaib / :marco]]

The severity field is not set for this bug.
:jonalmeida, could you have a look please?

For more information, please visit BugBot documentation.

Comment 3

[Makoto Kato [:m_kato]]

media team?

Comment 4

[BugBot [:suhaib / :marco]]

The severity field is not set for this bug.
:jimm, could you have a look please?

For more information, please visit BugBot documentation.