STRUCT HANTRO_VP9_FRAME_INFO(9)

🌸 struct hantro_vp9_frame_info(9) 🌸

okay so this is a page from the Kernel API Manual (yes, that's the manual name, we're being fancy today) and it's literally all about one lil struct, bestie. buckle up 🎀

---

✨ NAME ✨

struct hantro_vp9_frame_info — and that's it. that's the whole description. the manpage really said "no thoughts, head empty" and left the dash hanging there with nothing after it 💀 iconic behaviour honestly

---

🦋 SYNOPSIS 🦋

here's the whole vibe, copied exactly, don't come for me:

struct hantro_vp9_frame_info {
    u32 valid : 1;
    u32 frame_context_idx : 2;
    u32 reference_mode : 2;
    u32 tx_mode : 3;
    u32 interpolation_filter : 3;
    u32 flags;
    u64 timestamp;
 };

like look at those bitfields. little tiny slivers of u32. she's compact, she's precise, she's giving main character energy 👑

---

💅 MEMBERS 💅

one by one, no gatekeeping:

• valid — the "is this frame info even valid tho" flag. it's a 1-bit u32 field, so it's literally doing the absolute most with the least 🫶
• frame_context_idx — the index of the frame context. 2 bits of pure context-tracking realness ✨
• reference_mode — the inter prediction type. that's the whole description, don't @ me, 2 bits wide 🌸
• tx_mode — transform mode, 3 bits, lowkey the moment 🔥
• interpolation_filter — filter selection for inter prediction. 3 whole bits dedicated to picking your filter, we love a queen who knows what she wants 💖
• flags — frame flags. plain u32, no bitfield width, she's unbothered, she's free 🌈
• timestamp — frame timestamp, and it's a u64 so it's got range. periodt 💜

---

🧚 SEE ALSO 🧚

bestie there is SO much lore here, it's all in the kernel file ./drivers/media/platform/verisilicon/hantro_hw.h and it links out to the whole friend group 😭:

• struct hantro_aux_buf(9)
• struct hantro_h264_dec_ctrls(9)
• struct hantro_h264_dec_reflists(9)
• struct hantro_h264_dec_hw_ctx(9)
• struct hantro_hevc_dec_ctrls(9)
• struct hantro_hevc_dec_hw_ctx(9)
• struct hantro_mpeg2_dec_hw_ctx(9)
• struct hantro_vp8_dec_hw_ctx(9)
• struct hantro_vp9_dec_hw_ctx(9)
• struct hantro_av1_dec_ctrls(9)
• struct hantro_av1_dec_hw_ctx(9)
• struct hantro_postproc_ctx(9)
• struct hantro_postproc_ops(9)
• struct hantro_codec_ops(9)
• enum hantro_enc_fmt(9)

like that's a whole group chat of structs and enums and you're invited 🎀

---

ngl there's no OPTIONS section, no exit statuses, no environment variables on this one — it's just a struct and her friends. a cozy little read, honestly 🍓

---

and that's the page!! sign-off time: this one came from ./drivers/media/platform/veris... and it's dated October 2026, so go forth and read struct definitions with your whole chest 💖✨🦋