838982 - codecdetect.com doesn't detect MPE4, M4A, MP3, AAC, and WAVE

Status: RESOLVED FIXED

(Web Compatibility :: Site Reports, defect)

Description

[Chris Pearce [:cpearce (Not reading bugmail)]]

On Win8 with the new WMF backend, CodecDetect.com doesn't detect support for the formats we now support. IE and Chrome don't get full marks either, so maybe the page is testing the wrong codecs params.

Comment 1

[Virtual_ManPL [:Virtual] 🇵🇱 - (please needinfo? me - so I will see your comment/reply/question/etc.)]

Looks like a site bug

Comment 2

[Virtual_ManPL [:Virtual] 🇵🇱 - (please needinfo? me - so I will see your comment/reply/question/etc.)]

Attachment: AV codecs.png

He's the screenshot from the site using latest Nightly

Comment 3

[Virtual_ManPL [:Virtual] 🇵🇱 - (please needinfo? me - so I will see your comment/reply/question/etc.)]

Should we mark it as INVALID?
Site code is here - https://github.com/jansensan/codec-detect

Comment 4

[Karl Dubost💡 :karlcow]

The code is indeed fine. They test appropriately the feature:

for example:
   isMPEG4VideoSupported = "" !== video.canPlayType('video/mp4; codecs="mp4v.20.8"');

in
https://github.com/jansensan/codec-detect/blob/master/assets/js/main.js


Please reopen if I have missed something.

Comment 5

[Chris Pearce [:cpearce (Not reading bugmail)]]

The code is totally wrong.

They testing for AAC like so:
isAACAudioSupported = "" !== audio.canPlayType('audio/aac; codecs="mpeg 4, aac"');

https://github.com/jansensan/codec-detect/blob/master/assets/js/main.js#L231

That is totally wrong, and it doesn't return true on any major browser on Windows.

Comment 6

[Karl Dubost💡 :karlcow]

Ah good grief! Chris.
Maybe https://github.com/jansensan/codec-detect/issues
is a better place to report this.

Comment 7

[Karl Dubost💡 :karlcow]

http://codecdetect.com/
The page returns for Firefox Nightly on Macosx


# Video Codecs
MPEG4 is not supported
H264 is probably supported
OGG is probably supported
WEBM is probably supported

# Audio Codecs
MP3 is maybe supported
AAC is probably supported
WEBM is probably supported
OGG (Vorbis) is probably supported
OGG (Opus) is probably supported
Wave is probably supported

Is there an issue? Chris 
if Yes, could you open on  https://github.com/jansensan/codec-detect/issues/new

Comment 8

[Chris Peterson [:cpeterson]]

cpearce: you reopened this bug last year. Is this a website bug? Is this still an issue?

Comment 9

[Chris Pearce [:cpearce (Not reading bugmail)]]

(In reply to Chris Peterson [:cpeterson] from comment #8)
> cpearce: you reopened this bug last year. Is this a website bug? Is this
> still an issue?

This was a bug in codecdetect's JS. It's been fixed.