Trying to record off a canvas, but bitrate is very low; high values are ignored.

This page summarizes the projects mentioned and recommended in the original post on /r/learnjavascript
mediasource-extensions Opus Player Recorder webcodecs

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  • webm-writer-js

    JavaScript-based WebM video encoder for Google Chrome

  • webm-muxer.js

    WebM muxer using libwebm and webm-tools compiled to Wasm

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  • WebCodecsOpusRecorder

    WebCodecs Opus Recorder/Media Source Extensions Opus EncodedAudioChunk Player

    • This is how I write Opus packets to a file without a container and playback using Media Source Extension or as WAV file https://github.com/guest271314/WebCodecsOpusRecorder

  • MediaFragmentRecorder

    Record media fragments

    • You can use Image Capture API to get images from a MediaStreamTrack https://github.com/guest271314/MediaFragmentRecorder/tree/imagecapture-audiocontext-readablestream-writablestream.

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