STRUCT VDEC_HEVC_SLICE_VSI(9)

🎀 struct vdec_hevc_slice_vsi(9) 🎀

okay bestie, welcome to the Kernel API Manual page for struct vdec_hevc_slice_vsi — it's giving "shared memory queen" and honestly? icon behavior. Let's get into it 💅

---

✨ NAME ✨

struct vdec_hevc_slice_vsi — the shared memory situation for decode information exchange between SCP and Host. that's it, that's the vibe. two worlds, one buffer, no cap 🫶

---

🌸 SYNOPSIS 🌸

okay so here's the literal shape of it, unchanged, copy-paste energy (but like, the accurate kind):

struct vdec_hevc_slice_vsi {
    struct vdec_hevc_slice_mem bs;
    struct vdec_hevc_slice_mem ube;
    struct vdec_hevc_slice_mem trans;
    struct vdec_hevc_slice_mem err_map;
    struct vdec_hevc_slice_mem slice_bc;
    struct vdec_hevc_slice_mem wrap;
    struct vdec_hevc_slice_fb fb;
    struct vdec_hevc_slice_mem mv_buf_dma[HEVC_MAX_MV_NUM];
    struct vdec_hevc_slice_info dec;
    struct vdec_hevc_slice_lat_dec_param hevc_slice_params;
 };

---

🦋 Members 🦋

okay, member-by-member breakdown, let's go — every single one, no skipping, we don't do that here 💖

• bs — input buffer info 📥 like, the incoming data's whole personality.
• ube — the ube buffer. yes, that's its name, iconic, moving on ✨
• trans — transcoded buffer 🌀 stuff that got transcoded lives here.
• err_map — err map buffer 😭 the error map, so you know where things went wrong. very main character of it.
• slice_bc — slice bc buffer 🎀
• wrap — temp buffer ⏳ temporary! don't get attached.
• fb — current y/c buffer 🌈 y/c, as in the components, you know the ones.
• mv_buf_dma — HW working motion vector buffer 🔥 it's an array, mv_buf_dma[HEVC_MAX_MV_NUM], so she's plural, she's HEVC_MAX_MV_NUM of them, HW is doing the work.
• dec — decode information (AP-R, VPU-W) 👑 AP-R, VPU-W, both noted, both important.
• hevc_slice_params — decode parameters for hw used 🛠️ the params the hardware actually consumes.

---

💀 SEE ALSO 💀

• Kernel file: ./drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_hevc_req_multi_if.c
• enum vdec_hevc_core_dec_err_type(9)
• struct mtk_hevc_dpb_info(9)
• struct hevc_fb(9)
• struct vdec_hevc_slice_lat_dec_param(9)
• struct vdec_hevc_slice_info(9)
• struct vdec_hevc_slice_fb(9)
• struct vdec_hevc_slice_share_info(9)
• struct vdec_hevc_slice_inst(9)

like, read them all, iykyk 🧚

---

ngl, if you're poking at this struct you're probably deep in mediatek vcodec decoder land — go read that kernel file, it's right there, slay 🫶

---

and that's the page!! source: ./drivers/media/platform/media..., Kernel API Manual, dated October 2026 — mwah, bye bestie, go decode something gorgeous 💜🎀🌟