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Symptoms: low quality of the video, muddy picture, bitrate shown in chrome://webrtc-internals is less than 100 kbps.
Solution: turn off disable hardware acceleration in the browser , switch the browser of by setting the flag chrome://flags/#disable-accelerated-video-encode to Disable, set up the browser or the server to use the VP8 codec.
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Solution: disable hardware encoding acceleration in browser by setting the flag chrome://flags/#disable-accelerated-video-encode to Disable, set up the browser or the server to use the VP8 codec for publishing, or use other browser
6. Canvas capturing may stop while switching to another browser tab or minimizing browser window
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