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Take A QuizGeneral Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
Chrome does not yet support H.264. For proof, see this fiddle which removes the VP8 codec.
The fiddle lets you cut'n'paste offer/answers to make a connection between two tabs or browsers, but for now, just paste the offer into a text editor and look at it:
You'll find that Firefox offers H.264 to spec:
a=rtpmap:126 H264/90000
a=rtpmap:97 H264/90000
whereas Chrome offers VP8 only, in spite of us just having removed it:
a=rtpmap:100 VP8/90000
So when you say it works from Chrome to Chrome, I think you're really seeing VP8.
They are apparently working H.264 though.
Update: Apparently H.264 support is behind a flag in Chrome 50. Enable it with:
chrome://flags/#enable-webrtc-h264-with-openh264-ffmpeg
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manpreet
Best Answer
2 years ago
I try to connect Firefox 45 to Chrome 51dev to transfer h264 video. Firefox to Firefox and Chrome to Chrome works perfectly. But Firefox to Chrome transfers vp8 video even though I set the priority h264.
To set the codec priority I used this link: https://miguelpdl.github.io/WebRTC-codelab/session06/lab/html/step03.html
On the answer side remote description contains:
But local description contains only:
Can I connect Firefox to Chrome to transfer h264?