v4l2_h264_build_p_ref_list(9)

💅 v4l2_h264_build_p_ref_list — the Kernel API Manual, but make it cute

okay so bestie, you're in the Kernel API Manual and today's main character is v4l2_h264_build_p_ref_list(9) ✨ like literally the function that builds the P reference list. no cap, that's the whole personality.

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🌸 NAME 🌸

v4l2_h264_build_p_ref_list — build the P reference list 🫶

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✨ SYNOPSIS ✨

void v4l2_h264_build_p_ref_list (const struct v4l2_h264_reflist_builder
       *builder , struct v4l2_h264_reference *reflist );

like, that's it. that's the signature. she's simple, she's iconic 💅

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🎀 ARGUMENTS 🎀

• builder — the reference list builder context. it's giving "everything you need to know, pre-packaged" 👑
• reflist — a 32 sized array used to store the P reference list. each entry is a v4l2_h264_reference structure. yes bestie, thirty-two. don't @ me, that's the spec 🦋

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💖 DESCRIPTION 💖

so this function builds the P reference lists ✨ this procedure is described in section '8.2.4 Decoding process for reference picture lists construction' of the H264 spec — yes, that whole long section name, iykyk 😭 that's literally the exact place it lives, no shortcuts.

this function can be used by H264 decoder drivers that need to pass a P reference list to the hardware 🔥 lowkey the whole point: you build it here, you hand it to the hardware, everyone slays.

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🌈 SEE ALSO 🌈

• Kernel file ./include/media/v4l2-h264.h
• struct v4l2_h264_reflist_builder(9)
• v4l2_h264_build_b_ref_lists(9) — the B-list sibling, go say hi 🫶

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ngl bestie, if you're here for the B lists, you're in the wrong function — but the see-also has your back 😌

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and that's the tea 🍓 this page lives in ./include/media, dated October 2026, and the whole thing is filed under v4l2_h264_build_p_ref_list(9) — mwah, periodt 💜🧚