STRUCT VDEC_H264_SLICE_SHARE_INFO(9)

💖 struct vdec_h264_slice_share_info(9) 💖

okay bestie, so this is a page straight out of the Kernel API Manual, and it's giving "the little struct that could" energy. no cap, this one's a whole messenger between two halves of a video decoder, and we're gonna get into it 🎀

---

✨ NAME ✨

struct vdec_h264_slice_share_info — the shared info that's literally used to exchange messages between lat and core 🫶

like, that's her whole job. she holds the notes that get passed back and forth. iconic behavior honestly.

---

🌸 SYNOPSIS 🌸

struct vdec_h264_slice_share_info {
    struct v4l2_ctrl_h264_sps sps;
    struct v4l2_ctrl_h264_decode_params dec_params;
    struct vdec_h264_slice_lat_dec_param h264_slice_params;
    u64 trans_start;
    u64 trans_end;
    u16 nal_info;
 };

look at her. six fields. no skips, no extra drama. periodt 💅

---

🦋 Members 🦋

• sps — the sequence header information, and it comes from user space bestie ✨
• dec_params — decoder params, also handed over from user space 💜
• h264_slice_params — decoder params that the hardware actually uses. yes, there's a difference, iykyk 🔥
• trans_start — the trans start dma address ⭐
• trans_end — the trans end dma address ⭐ (she's the matching pair, we love symmetry)
• nal_info — the nal info of the current picture 🌈

---

💀 SEE ALSO 💀

Kernel file:

./drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c

and the whole friend group, fr fr:

• enum vdec_h264_core_dec_err_type(9)
• struct vdec_h264_slice_lat_dec_param(9)
• struct vdec_h264_slice_info(9)
• struct vdec_h264_slice_vsi(9)
• struct vdec_h264_slice_fb(9)
• struct vdec_h264_slice_info_ext(9)
• struct vdec_h264_slice_vsi_ext(9)
• struct vdec_h264_slice_inst(9)

---

ngl this page lives under ./drivers/media/platform/media... (that's the source/version line, not me being lazy, it's genuinely truncated like that in the original 🙈) and it's dated October 2026 🍓

k that's the whole vibe check, go forth and slay your h264 slices 💖✨🧚‍♀️