WebRTC: Find used codecs
Categories
(Core :: WebRTC, enhancement)
Tracking
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People
(Reporter: pmenzel+bugzilla.mozilla.org, Unassigned)
Details
User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:76.0) Gecko/20100101 Firefox/76.0
Steps to reproduce:
Using Firefox Nightly and doing a WebRTC conference (BBB, Jitsi).
Actual results:
I’d like to know what codecs are used.
Expected results:
There should be an easy way to find out about the used codecs. They do not seem to be listed at about:webrtc.
Hi, pmenzel!
Thanks for your contribution!
I don't know exactly which are the specific codecs for each web conference system. I'm sharing a doc that has some information about that assuming you've not read it already. (https://developer.mozilla.org/en-US/docs/Web/Media/Formats/WebRTC_codecs)
Beyond that, I will be adding product and component to this issue so someone with more specific knowledge on codecs and webRTC can give some advice.
Regards,
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Reporter | |
Comment 2•5 years ago
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Thank you. I had found that page before, but as far as I can see, it talks about the supported codecs and does not have instructions on how to find out the currently used video codec.
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Reporter | |
Comment 3•3 years ago
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I am still unable to find out, what video codec is used in a WebRTC conference.
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Reporter | |
Comment 4•3 years ago
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in <about:webrtc> in the connection details, I just see:
Locale SDP:
a=rtpmap:120 VP8/90000
a=rtpmap:124 rtx/90000
a=rtpmap:121 VP9/90000
a=rtpmap:125 rtx/90000
a=rtpmap:126 H264/90000
a=rtpmap:127 rtx/90000
a=rtpmap:97 H264/90000
a=rtpmap:98 rtx/90000
(Why are H264 and rtx listed twice?)
External SDP:
a=rtpmap:120 VP8/90000
Description
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