STRUCT VDEC_AV1_SLICE_INSTANCE(9)

🎀 struct vdec_av1_slice_instance(9) — the Kernel API Manual, bestie edition 🎀

okay so this is struct vdec_av1_slice_instance(9), straight out of the Kernel API Manual, and it's literally the glow-up of one (1) av1 instance. one. single. instance. main character energy only ✨

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🌸 NAME 🌸

struct vdec_av1_slice_instance — represent one av1 instance 💅

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✨ SYNOPSIS ✨

struct vdec_av1_slice_instance {
    struct mtk_vcodec_dec_ctx *ctx;
    struct vdec_vpu_inst vpu;
    struct mtk_vcodec_mem iq_table;
    struct mtk_vcodec_mem cdf_table;
    struct mtk_vcodec_mem mv[AV1_MAX_FRAME_BUF_COUNT];
    struct mtk_vcodec_mem cdf[AV1_MAX_FRAME_BUF_COUNT];
    struct mtk_vcodec_mem seg[AV1_MAX_FRAME_BUF_COUNT];
    struct mtk_vcodec_mem cdf_temp;
    struct mtk_vcodec_mem tile;
    struct vdec_av1_slice_slot slots;
    struct vdec_av1_slice_tile_group tile_group;
    enum vdec_av1_slice_resolution_level level;
    u32 width;
    u32 height;
    u32 frame_type;
    u32 irq_enabled;
    u32 inneracing_mode;
    union {
      struct vdec_av1_slice_init_vsi *init_vsi;
      struct vdec_av1_slice_vsi *vsi;
    };
    struct vdec_av1_slice_vsi *core_vsi;
    int seq;
 };

not the union being anonymous, she said "no label, no problem" 🫶

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👑 Members 👑

• ctx — pointer to codec's context. the whole vibe check starts here 💖
• vpu — VPU instance. iconic little helper fr fr
• iq_table — iq table buffer
• cdf_table — cdf table buffer
• mv — mv working buffer
• cdf — cdf working buffer
• seg — segmentation working buffer
• cdf_temp — cdf temp buffer
• tile — tile buffer
• slots — slots info
• tile_group — tile_group entry
• level — level of current resolution
• width — width of last picture
• height — height of last picture
• frame_type — frame_type of last picture
• irq_enabled — irq to Main CPU or MicroP
• inneracing_mode — is inneracing mode
• {unnamed_union} — anonymous. no name, all drama 🫥
• init_vsi — vsi used for initialized AV1 instance
• vsi — vsi used for decoding/flush ... (yes, the ellipsis is canon, don't come for me)
• core_vsi — vsi used for Core stage
• seq — global picture sequence

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🦋 SEE ALSO 🦋

Kernel file ./drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c

and the whole friend group, literally all of them:

• struct vdec_av1_slice_init_vsi(9)
• struct vdec_av1_slice_mem(9)
• struct vdec_av1_slice_state(9)
• struct vdec_av1_slice_tile_group(9)
• struct vdec_av1_slice_scale_factors(9)
• struct vdec_av1_slice_frame_refs(9)
• struct vdec_av1_slice_gm(9)
• struct vdec_av1_slice_sm(9)
• struct vdec_av1_slice_seg(9)
• struct vdec_av1_slice_delta_q_lf(9)
• struct vdec_av1_slice_quantization(9)
• struct vdec_av1_slice_lr(9)
• struct vdec_av1_slice_loop_filter(9)
• struct vdec_av1_slice_cdef(9)
• struct vdec_av1_slice_mfmv(9)
• struct vdec_av1_slice_tile(9)
• struct vdec_av1_slice_uncompressed_header(9)
• struct vdec_av1_slice_seq_header(9)
• struct vdec_av1_slice_frame(9)
• struct vdec_av1_slice_work_buffer(9)
• struct vdec_av1_slice_frame_info(9)
• struct vdec_av1_slice_slot(9)
• struct vdec_av1_slice_fb(9)
• struct vdec_av1_slice_vsi(9)
• struct vdec_av1_slice_pfc(9)

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okay that's the whole page, no notes 💅

and for the little sign-off corner: the source line is ./drivers/media/platform/media... (yes it's cut off in the original too, we respect the mystery 🎀), dated October 2026, and it's all filed under struct vdec_...ice_instance(9) — periodt. 🌈⭐💜