chapdo @chapdo-dev.bsky.social · Apr 22

MediaRecorder, MIME type, and keyframe chunks • Learned that MediaRecorder is a Web API used for recording screen, mic, or system audio. • It outputs data in chunks, typically with MIME type video/webm, which is a container format for video/audio streams.

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chapdo · Apr 22

• WebM chunks must start with a keyframe to be properly playable. • Simply slicing the stream at fixed intervals can cause playback issues if the chunk doesn’t start with a keyframe.