How to refreshing specific spatial layer only?

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Byoungchan Lee

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Sep 7, 2022, 8:14:46 PM9/7/22
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Jerome Jiang's 'VP9 Features & Optimizations for Real-Time Video' presentation [1] mentions refreshing the reference buffer of the base spatial layer only. I am interested in this feature and would like to implement a Layer Refresh Request [1] (or similar Web-API) in WebRTC.

Is it correct to use `base_layer_intra_only` added in [2] in this case? How about refreshing a non-default layer (eg SL1)?

[1] https://groups.google.com/a/webmproject.org/g/codec-devel/c/HVBRjoW0fTw/m/PmZ_rBUOCgAJ
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