v4l2_vp9_fw_update_probs(9)

okay so bestie, this is the Kernel API Manual page for v4l2_vp9_fw_update_probs(9), and the manual name is folded in right here like a lil name tag 🫶. Buckle up, we’re doing vp9 probabilities.

✨ NAME ✨

v4l2_vp9_fw_update_probs — Perform forward update of vp9 probabilities

🦋 SYNOPSIS 🦋

void v4l2_vp9_fw_update_probs (struct v4l2_vp9_frame_context *probs ,
const struct v4l2_ctrl_vp9_compressed_hdr *deltas , const struct
v4l2_ctrl_vp9_frame *dec_params );

🎀 ARGUMENTS 🎀

• probs — current probabilities values
• deltas — delta values from compressed header
• dec_params — vp9 frame decoding parameters

💖 DESCRIPTION 💖

This function performs forward updates of probabilities for the vp9 boolean decoder. The frame header can contain a directive to update the probabilities (deltas), and if it does, then the deltas are provided in the header too. The userspace parses those and passes the said deltas struct to the kernel. That’s the whole vibe: parse the deltas, hand them over, let the kernel do its forward-update thing ✨.

🌈 SEE ALSO 🌈

• Kernel file ./include/media/v4l2-vp9.h struct v4l2_vp9_frame_mv_context(9)
• struct v4l2_vp9_frame_context(9)
• struct v4l2_vp9_frame_symbol_counts(9)
• v4l2_vp9_reset_frame_ctx(9)
• v4l2_vp9_adapt_coef_probs(9)
• v4l2_vp9_adapt_noncoef_probs(9)
• v4l2_vp9_seg_feat_enabled(9)

okay that’s the whole page, bestie 🫶 source/version is ./include/media, dated October 2026 — now go update those probabilities, periodt 💅✨