STRUCT HANTRO_VP9_DEC_HW_CTX(9)

👑 NAME 👑

struct hantro_vp9_dec_hw_ctx — bestie, literally the whole hardware decoding context for Hantro's VP9 decoder ✨ (the original page gives no description line, so yeah, that's it, that's the whole vibe 🎀)

Also hi, welcome to the Kernel API Manual — that's the manual we're in, consider it the group chat's name 💅

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🦋 SYNOPSIS 🦋

struct hantro_vp9_dec_hw_ctx {
    struct hantro_aux_buf tile_edge;
    struct hantro_aux_buf segment_map;
    struct hantro_aux_buf misc;
    struct v4l2_vp9_frame_symbol_counts cnts;
    struct v4l2_vp9_frame_context probability_tables;
    struct v4l2_vp9_frame_context frame_context[4];
    struct hantro_vp9_frame_info cur;
    struct hantro_vp9_frame_info last;
    unsigned int bsd_ctrl_offset;
    unsigned int segment_map_size;
    unsigned int ctx_counters_offset;
    unsigned int tile_info_offset;
    unsigned short tile_r_info[MAX_SB_ROWS];
    unsigned short tile_c_info[MAX_SB_COLS];
    unsigned int last_tile_r;
    unsigned int last_tile_c;
    unsigned int last_sbs_r;
    unsigned int last_sbs_c;
    unsigned int active_segment;
    u8 feature_enabled[8];
    s16 feature_data[8][4];
 };

Look at her. Structured. Organized. Main character energy fr fr 🌈

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💖 Members 💖

Okay so every single field, one by one, no skips, no cap 🫶

• tile_edge — auxiliary DMA buffer for tile edge processing 🧚
• segment_map — auxiliary DMA buffer for segment map 🗺️
• misc — auxiliary DMA buffer for tile info, probabilities and hw counters ✨
• cnts — vp9 library struct for abstracting hw counters access 💫
• probability_tables — VP9 probability tables implied by the spec 📊
• frame_context — VP9 frame contexts (there's [4] of them, she's popular 💅)
• cur — current frame information 🎀
• last — last frame information 🕰️
• bsd_ctrl_offset — bsd offset into tile_edge 📍
• segment_map_size — size of segment map 📏
• ctx_counters_offset — hw counters offset into misc 🔢
• tile_info_offset — tile info offset into misc 🎯
• tile_r_info — per-tile information array 🧩
• tile_c_info — per-tile information array 🧩
• last_tile_r — last number of tile rows ➡️
• last_tile_c — last number of tile cols ⬇️
• last_sbs_r — last number of superblock rows 🔥
• last_sbs_c — last number of superblock cols 🔥
• active_segment — number of active segment (alternating between 0 and 1) 🔁
• feature_enabled — segmentation feature enabled flags 🚩
• feature_data — segmentation feature data 🍓

Not me listing all twenty-one of them with full commitment 😭 but like, she deserves it. Iconic struct. Periodt.

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🌸 SEE ALSO 🌸

Go check these out, they're all in the same friend group iykyk 👑

Kernel file ./drivers/media/platform/verisilicon/hantro_hw.h — plus these absolute legends:

• struct hantro_aux_buf(9)
• struct hantro_h264_dec_ctrls(9)
• struct hantro_h264_dec_reflists(9)
• struct hantro_h264_dec_hw_ctx(9)
• struct hantro_hevc_dec_ctrls(9)
• struct hantro_hevc_dec_hw_ctx(9)
• struct hantro_mpeg2_dec_hw_ctx(9)
• struct hantro_vp8_dec_hw_ctx(9)
• struct hantro_vp9_frame_info(9)
• struct hantro_av1_dec_ctrls(9)
• struct hantro_av1_dec_hw_ctx(9)
• struct hantro_postproc_ctx(9)
• struct hantro_postproc_ops(9)
• struct hantro_codec_ops(9)
• enum hantro_enc_fmt(9)

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Okay bestie that's the whole page, you're officially smarter than 90% of the timeline 💀✨

Cute lil sign-off: this beauty lives in the source file ./drivers/media/platform/verisilicon/hantro_hw.h (the footer shortens it to ./drivers/media/platform/veris...), and she's dated October 2026, from the Kernel API Manual. Go read the source, it's giving homework but like, the fun kind 🎀💜🦋