mp4box-ts

defined mp4's boxes by typescript and some userful tools

v1.0.10 URL: https://unpkg.com/mp4box-ts@1.0.10/dist/index.js

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mp4 boxed typesript avcc avc1 ftyp fmp4

h264-interp-utils

H.264 data streams and metadata are tricky to interpret. This Javascript package helps.

v1.1.1 URL: https://unpkg.com/h264-interp-utils@1.1.1/index.js

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h264 AVC video annexB Golomb SPS PPS avcC