[Webkit-unassigned] [Bug 135972] [GStreamer] unrelated codecs required to play videos

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=135972

Sebastian Dröge (slomo) <slomo at coaxion.net> changed:

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                 CC|                            |slomo at coaxion.net

--- Comment #5 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
We could make the mime type list more dynamic relatively easily. Not by reverting that commit though because the original code was as wrong as the current one on that regard.

Instead of looking at typefinders we should use the GstElementFactory API to check:
- for container formats if a demuxer exists
- for codecs if a decoder exists

Remaining question is: What does e.g. "video/mp4" mean? An MP4 container stream... with which codecs? MPEG-4 Part 2? H264? H263? AAC? MP3? ...?

Is there somewhere a definition of what all these mimetypes actually mean in the context of the web, or is there a way to get more details?
I remember that you usually ask if the browser supports e.g. 'video/mp4; codecs="mp4v.20.8"', is there an extensive list of what is allowed there?

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