STRUCT PISP_BE_CONFIG(9)

💅 struct pisp_be_config(9) — bestie, this is the Kernel API Manual page

okay so picture this: you're deep in the RaspberryPi PiSP Back End and you need one struct that holds literally the entire processing configuration. yeah. that's her. that's pisp_be_config. she's the main character of the whole pipeline and she contains multitudes 💖

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✨ NAME ✨

struct pisp_be_config — the RaspberryPi PiSP Back End Processing configuration, aka the big bag of every setting the back end could ever want 🎀

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🦋 SYNOPSIS 🦋

struct pisp_be_config {
    struct pisp_be_input_buffer_config input_buffer;
    struct pisp_be_tdn_input_buffer_config tdn_input_buffer;
    struct pisp_be_stitch_input_buffer_config stitch_input_buffer;
    struct pisp_be_tdn_output_buffer_config tdn_output_buffer;
    struct pisp_be_stitch_output_buffer_config stitch_output_buffer;
    struct pisp_be_output_buffer_config
output_buffer[PISP_BACK_END_NUM_OUTPUTS];
    struct pisp_be_hog_buffer_config hog_buffer;
    struct pisp_be_global_config global;
    struct pisp_image_format_config input_format;
    struct pisp_decompress_config decompress;
    struct pisp_be_dpc_config dpc;
    struct pisp_be_geq_config geq;
    struct pisp_image_format_config tdn_input_format;
    struct pisp_decompress_config tdn_decompress;
    struct pisp_be_tdn_config tdn;
    struct pisp_compress_config tdn_compress;
    struct pisp_image_format_config tdn_output_format;
    struct pisp_be_sdn_config sdn;
    struct pisp_bla_config blc;
    struct pisp_compress_config stitch_compress;
    struct pisp_image_format_config stitch_output_format;
    struct pisp_image_format_config stitch_input_format;
    struct pisp_decompress_config stitch_decompress;
    struct pisp_be_stitch_config stitch;
    struct pisp_be_lsc_config lsc;
    struct pisp_wbg_config wbg;
    struct pisp_be_cdn_config cdn;
    struct pisp_be_cac_config cac;
    struct pisp_be_debin_config debin;
    struct pisp_be_tonemap_config tonemap;
    struct pisp_be_demosaic_config demosaic;
    struct pisp_be_ccm_config ccm;
    struct pisp_be_sat_control_config sat_control;
    struct pisp_be_ccm_config ycbcr;
    struct pisp_be_sharpen_config sharpen;
    struct pisp_be_false_colour_config false_colour;
    struct pisp_be_sh_fc_combine_config sh_fc_combine;
    struct pisp_be_ccm_config ycbcr_inverse;
    struct pisp_be_gamma_config gamma;
    struct pisp_be_ccm_config csc[PISP_BACK_END_NUM_OUTPUTS];
    struct pisp_be_downscale_config
downscale[PISP_BACK_END_NUM_OUTPUTS];
    struct pisp_be_resample_config resample[PISP_BACK_END_NUM_OUTPUTS];
    struct pisp_be_output_format_config
output_format[PISP_BACK_END_NUM_OUTPUTS];
    struct pisp_be_hog_config hog;
    struct pisp_be_axi_config axi;
    struct pisp_be_lsc_extra lsc_extra;
    struct pisp_be_cac_extra cac_extra;
    struct pisp_be_downscale_extra
downscale_extra[PISP_BACK_END_NUM_OUTPUTS];
    struct pisp_be_resample_extra
resample_extra[PISP_BACK_END_NUM_OUTPUTS];
    struct pisp_be_crop_config crop;
    struct pisp_image_format_config hog_format;
    __u32 dirty_flags_bayer;
    __u32 dirty_flags_rgb;
    __u32 dirty_flags_extra;
 };

no cap, that's the whole thing. every field is a little vibe check for a different stage of the image pipeline 🌈

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👑 Members 👑

🫧 the buffer-address squad

• input_buffer — input buffer addresses 📥
• tdn_input_buffer — TDN input buffer addresses
• stitch_input_buffer — Stitch input buffer addresses
• tdn_output_buffer — TDN output buffer addresses
• stitch_output_buffer — Stitch output buffer addresses
• output_buffer — output buffers addresses
• hog_buffer — HOG buffer addresses 🐷

🌸 global + input

• global — global PiSP configuration
• input_format — input image format

🧚 the front-of-pipeline glow-ups

• decompress — decompress configuration
• dpc — Defective Pixel Correction configuration
• geq — Green Equalisation configuration

💜 Temporal Denoise (TDN) corner

• tdn_input_format — Temporal Denoise input format
• tdn_decompress — Temporal Denoise decompress configuration
• tdn — Temporal Denoise configuration
• tdn_compress — Temporal Denoise compress configuration
• tdn_output_format — Temporal Denoise output format

🎀 denoise + level + stitch

• sdn — Spatial Denoise configuration
• blc — Black Level Correction configuration
• stitch_compress — Stitch compress configuration
• stitch_output_format — Stitch output format
• stitch_input_format — Stitch input format
• stitch_decompress — Stitch decompress configuration
• stitch — Stitch configuration

✨ the colour-and-shading icons

• lsc — Lens Shading Correction configuration
• wbg — White Balance Gain configuration
• cdn — Colour Denoise configuration
• cac — Colour Aberration Correction configuration
• debin — Debinning configuration
• tonemap — Tonemapping configuration
• demosaic — Demosaicing configuration
• ccm — Colour Correction Matrix configuration
• sat_control — Saturation Control configuration
• ycbcr — YCbCr colour correction configuration
• sharpen — Sharpening configuration
• false_colour — False colour correction
• sh_fc_combine — Sharpening and False Colour correction
• ycbcr_inverse — Inverse YCbCr colour correction
• gamma — Gamma curve configuration

🔥 per-output arrays (she's an array girlie, PISP_BACK_END_NUM_OUTPUTS of them)

• csc — Color Space Conversion configuration
• downscale — Downscale configuration
• resample — Resampling configuration
• output_format — Output format configuration

⭐ HOG + AXI + extras

• hog — HOG configuration
• axi — AXI bus configuration
• lsc_extra — LSC extra info
• cac_extra — CAC extra info
• downscale_extra — Downscaler extra info
• resample_extra — Resample extra info

🍓 crop + hog format

• crop — Crop configuration
• hog_format — HOG format info

💀 the dirty flags (yes they're literally called dirty, iconic)

• dirty_flags_bayer — Bayer enable dirty flags (:c:type:pisp_be_bayer_enable)
• dirty_flags_rgb — RGB enable dirty flags (:c:type:pisp_be_rgb_enable)
• dirty_flags_extra — extra dirty flags

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🌟 SEE ALSO 🌟

the kernel file to go peek at: ./include/uapi/linux/media/raspberrypi/pisp_be_config.h

and the whole friend group 🫶 — struct pisp_be_global_config(9), struct pisp_be_input_buffer_config(9), struct pisp_be_dpc_config(9), struct pisp_be_geq_config(9), struct pisp_be_tdn_input_buffer_config(9), struct pisp_be_tdn_config(9), struct pisp_be_tdn_output_buffer_config(9), struct pisp_be_sdn_config(9), struct pisp_be_stitch_input_buffer_config(9), struct pisp_be_stitch_config(9), struct pisp_be_stitch_output_buffer_config(9), struct pisp_be_cdn_config(9), struct pisp_be_lsc_config(9), struct pisp_be_lsc_extra(9), struct pisp_be_cac_config(9), struct pisp_be_cac_extra(9), struct pisp_be_debin_config(9), struct pisp_be_tonemap_config(9), struct pisp_be_demosaic_config(9), struct pisp_be_ccm_config(9), struct pisp_be_sat_control_config(9), struct pisp_be_false_colour_config(9), struct pisp_be_sharpen_config(9), struct pisp_be_sh_fc_combine_config(9), struct pisp_be_gamma_config(9), struct pisp_be_crop_config(9), struct pisp_be_resample_config(9), struct pisp_be_resample_extra(9), struct pisp_be_downscale_config(9), struct pisp_be_downscale_extra(9), struct pisp_be_hog_config(9), enum pisp_be_transform(9), struct pisp_be_output_buffer_config(9), struct pisp_be_hog_buffer_config(9), enum pisp_tile_edge(9), struct pisp_tile(9), struct pisp_be_tiles_config(9)

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heads up bestie: those :c:type: bits and the .h path are literal — don't go renaming them, they're load-bearing 💅

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okay that's the whole page, mwah 😘 this cutie came from the source ./include/uapi/linux/media/ras... and it's dated October 2026 — go forth and configure your back end, you're gonna slay 🧚‍♀️✨