STRUCT HVA_CONTROLS(9)

💅 struct hva_controls(9) — hva controls set ✨

okay bestie, welcome to the Kernel API Manual section for struct hva_controls — like, the whole entire controls set for hva. this is the glow-up doc, let's go 🫶

🌸 SYNOPSIS 🌸

here's the struct in all its main-character glory, no cap, every field exactly as it lives:

struct hva_controls {
    struct v4l2_fract
time_per_frame;
    enum v4l2_mpeg_video_bitrate_mode
bitrate_mode;
    u32 gop_size;
    u32 bitrate;
    enum v4l2_mpeg_video_aspect                             aspect;
    enum v4l2_mpeg_video_h264_profile                       profile;
    enum v4l2_mpeg_video_h264_level                         level;
    enum v4l2_mpeg_video_h264_entropy_mode
entropy_mode;
    u32 cpb_size;
    bool dct8x8;
    u32 qpmin;
    u32 qpmax;
    bool vui_sar;
    enum v4l2_mpeg_video_h264_vui_sar_idc                   vui_sar_idc;
    bool sei_fp;
    enum v4l2_mpeg_video_h264_sei_fp_arrangement_type       sei_fp_type;
 };

lowkey a lot of fields but we're gonna go through every single one, periodt 💖

✨ Members ✨

• time_per_frame — time per frame, measured in seconds ⏱️ like, how long each frame gets to shine.
• bitrate_mode — the bitrate mode, aka constant bitrate or variable bitrate. pick your fighter 🎀
• gop_size — groupe of picture size. (yes, that's literally what it says, we don't edit the lore 💅)
• bitrate — bitrate, in bps 🔥
• aspect — video aspect.
• profile — H.264 profile, the whole personality of your encode ngl.
• level — H.264 level.
• entropy_mode — H.264 entropy mode, either CABAC or CVLC 🌈
• cpb_size — coded picture buffer size, in kB 📦
• dct8x8 — transform mode 8x8 enable. it's a bool, so it's giving yes/no energy.
• qpmin — minimum quantizer ⭐
• qpmax — maximum quantizer ⭐
• vui_sar — pixel aspect ratio enable.
• vui_sar_idc — pixel aspect ratio identifier 🦋
• sei_fp — sei frame packing arrangement enable.
• sei_fp_type — sei frame packing arrangement type 👑

🎀 SEE ALSO 🎀

go read these next, bestie, they're all connected iykyk:

• the kernel file ./drivers/media/platform/st/sti/hva/hva.h
• struct hva_frameinfo(9)
• struct hva_streaminfo(9)
• struct hva_frame(9)
• struct hva_stream(9)
• struct hva_ctx_dbg(9)
• struct hva_ctx(9)
• struct hva_dev_dbg(9)
• struct hva_dev(9)
• struct hva_enc(9)

ngl this whole page is just a struct and its members, but that's iconic in its own way 💀 don't skip the SEE ALSO, it's literally the friend group.

k bye ily 🧚💜 — this serve was brought to you by the source ./drivers/media/platform/st/st..., October 2026 edition, struct hva_controls(9), slay forever ✨🎀