STRUCT V4L2_VP9_FRAME_MV_CONTEXT(9)
π struct v4l2_vp9_frame_mv_context β NAME
okay so bestie, this is struct v4l2_vp9_frame_mv_context from the Kernel API Manual, and it's basically the motion vector probability storage era π β that's the whole vibe. It holds all the motion vector-related probabilities, one little u8 corner at a time.
β¨ SYNOPSIS β¨
no cap, here's the whole struct, copy it exactly:
struct v4l2_vp9_frame_mv_context {
u8 joint[3];
u8 sign[2];
u8 classes[2][10];
u8 class0_bit[2];
u8 bits[2][10];
u8 class0_fr[2][2][3];
u8 fr[2][3];
u8 class0_hp[2];
u8 hp[2];
};
π«Ά Members π«Ά
the way each field is literally just a probability bucket, i'm obsessed:
jointβ motion vector joint probabilities. three of them, living their best life πΈsignβ motion vector sign probabilities.classesβ motion vector class probabilities.class0_bitβ motion vector class0 bit probabilities πbitsβ motion vector bits probabilities.class0_frβ motion vector class0 fractional bit probabilities.frβ motion vector fractional bit probabilities.class0_hpβ motion vector class0 high precision fractional bit probabilities β¨hpβ motion vector high precision fractional bit probabilities.
π Description π
this little icon is a member of v4l2_vp9_frame_context. that's it, that's the whole relationship β it's giving "plus one to the bigger struct" energy π
π SEE ALSO π
go touch some more kernel headers bestie, the whole friend group is here in Kernel file ./include/media/v4l2-vp9.h:
struct v4l2_vp9_frame_context(9)struct v4l2_vp9_frame_symbol_counts(9)v4l2_vp9_fw_update_probs(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)
fr fr, that's the whole page β no hidden lore, no warnings, just a struct being iconic π
signed, sealed, slayed: from ./include/media, dated October 2026, page struct v4l2_...e_mv_context(9) β mwah, see u in the kernel π§π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms