navigator.mediaDevices.getUserMedia + MediaRecorder create WEBM files without duration metadata. This library appends missing metadata section right to the file blob.

based on ts-ebml and support large file，optimize memory usage during repair

A simple MediaRecorder demo using webm-duration-fix

fix-webm-duration

.Net WebM parser and editor. Supports duration fixing.

Using webm video "webm-duration-fix" library in a React application.

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