STRUCT VDEC_H264_INST(9)

NAME ✨

struct vdec_h264_inst — the h264 decoder instance, bestie 💖 (this is a page from the Kernel API Manual, and yes it's giving very niche-kernel-realness)

SYNOPSIS 🦋

struct vdec_h264_inst {
    unsigned int num_nalu;
    struct mtk_vcodec_dec_ctx *ctx;
    struct mtk_vcodec_mem pred_buf;
    struct mtk_vcodec_mem mv_buf[H264_MAX_FB_NUM];
    struct vdec_vpu_inst vpu;
    struct vdec_h264_vsi *vsi;
 };

Members 🌸

okay so this struct is literally the whole decoder's little home 💅 here's who lives in it:

• num_nalu — how many nalus be decoded, that's the count, periodt ✨
• ctx — points to mtk_vcodec_dec_ctx, like its little backstage pass 🎀
• pred_buf — the HW working prediction buffer, hardware's own lil scratchpad 🔥
• mv_buf — the HW working motion vector buffer, motion vectors stay cozy in here 🦋
• vpu — the VPU instance, your icon 👑
• vsi — VPU shared information, the group chat they all read from 💬

SEE ALSO 💜

• Kernel file ./drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_if.c — go read the source, iykyk 📖
• struct h264_fb(9)
• struct h264_ring_fb_list(9)
• struct vdec_h264_dec_info(9)
• struct vdec_h264_vsi(9)

lowkey a whole friend group of structs, ngl 🫶 go click through them, it's giving lore.

and that's the page, bestie 💖 this was pulled from ./drivers/media/platform/media..., dated October 2026, and it's the struct vdec_h264_inst(9) manual — slay, go decode something 🌈⭐