STRUCT HANTRO_FMT(9)

💖 NAME 💖

ok so struct hantro_fmt — literally the whole vibe check on which video formats are supported. that's it, that's the struct. bestie it's the info card for every format this thing can handle 🎀

this is from the kernel API manual, page struct hantro_fmt(9), in case you were wondering where you wandered into ✨

🌸 SYNOPSIS 🌸

struct hantro_fmt {
    char *name;
    u32 fourcc;
    enum hantro_codec_mode codec_mode;
    int header_size;
    int max_depth;
    enum hantro_enc_fmt enc_fmt;
    struct v4l2_frmsize_stepwise frmsize;
    bool postprocessed;
    bool match_depth;
 };

no cap, that's the whole thing. now let's break down every single field because we are not skipping any 💅

👑 MEMBERS 👑

• name — the human readable name of the format. like the cute label, not the nerdy code 🏷️
• fourcc — the FourCC code of the format. go peek at V4L2_PIX_FMT_* if you wanna see the whole family ✨
• codec_mode — which codec mode this format is related to. see enum hantro_codec_mode for the deets 🎬
• header_size — optional header size. rn it's only used by the JPEG encoder, so it's giving very "only one person at this party uses me" energy 🙈
• max_depth — maximum depth, for bitstream formats. deep. literally 🌊
• enc_fmt — the format identifier for encoder registers. register-coded bestie 🧚
• frmsize — the supported range of frame sizes (only for bitstream formats, fyi! don't come for me) 📐
• postprocessed — tells you if this format needs the post-processor. yes it's a whole extra step, she's high maintenance and iconic for it 💅
• match_depth — tells you if the format bit depth must match the video bit depth. must. it's not a suggestion fr fr ⭐

🦋 SEE ALSO 🦋

• Kernel file ./drivers/media/platform/verisilicon/hantro.h
• struct hantro_irq(9)
• struct hantro_variant(9)
• enum hantro_codec_mode(9)
• struct hantro_dev(9)
• struct hantro_ctx(9)
• hantro_debug: Module parameter to control level of debugging messages.(9)

go read those too, bestie. iykyk 🫶

🌈 that's the whole page, mwah 💋 — this lil number lives at ./drivers/media/platform/veris..., dated October 2026, and it's filed under struct hantro_fmt(9) in the kernel API manual. periodt. 💜