Opus audio codec in MP4 incorectly listed as "mp4a.ad"
#36 771 ouverte le 13 nov. 2024
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Description
MDN URL
https://developer.mozilla.org/en-US/docs/Web/Media/Formats/codecs_parameter
What specific section or headline is this issue about?
https://developer.mozilla.org/en-US/docs/Web/Media/Formats/codecs_parameter#mp4a.oo.a
What information was incorrect, unhelpful, or incomplete?
This section misleadingly states that "mp4a.ad" the correct codec is for Opus audio in a MP4 container, but if you type MediaSource.isTypeSupported('video/mp4; codecs=mp4a.ad') into a web browser developer console, it will return false.
What did you expect to see?
The correct codec type for Opus audio in an MP4 is "Opus", and MediaSource.isTypeSupported('video/mp4; codecs=Opus') returns true in web browser consoles.
A new subsection for Opus should be added under https://developer.mozilla.org/en-US/docs/Web/Media/Formats/codecs_parameter#iso_base_media_file_format_mp4_quicktime_and_3gp with this information to avoid confusion.
Do you have any supporting links, references, or citations?
https://mp4ra.org/registered-types/codecs
Do you have anything more you want to share?
No response
MDN metadata
- Folder:
en-us/web/media/formats/codecs_parameter - MDN URL: https://developer.mozilla.org/en-US/docs/Web/Media/Formats/codecs_parameter
- GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/web/media/formats/codecs_parameter/index.md
- Last commit: https://github.com/mdn/content/commit/bea339d321513fc6d66d95c8f0305b9387fa57bb
- Document last modified: 2024-10-25T23:05:38.000Z