V4L2: A Status Update

on YouTube ↗42m

" summary

V4L2 adds a Request API for per-frame metadata so stateless hardware codecs can be driven from userspace, with stateless decoders merged and stateless encoders still pending; two request-based drivers are in staging and h.264/HEVC support just landed while VP9 is in progress. Virtual drivers (vivid, vicodec) are used for daily regression and CI, compliance tests are expanding, and the plan is to exit staging and reach mainline in the next year once codec controls and corner cases are finalized.

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" chapters (11)

1. 0:00Intro
2. 1:11Codec Devices
3. 2:22Codecs: I/B/P-Frames
4. 3:29Stateful Codec Support
5. 6:14Stateless Codec Support
6. 8:15Stateless Decoder Support
7. 9:34Request API
8. 14:02Userspace API for Stateless Decoders
9. 25:56H.264/HEVC Decoder Slicing Support
10. 29:53Testing with Virtual Drivers
11. 32:02Resources

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