STRUCT DRM_DSC_PPS_INFOFRAME(9)

🦋 struct drm_dsc_pps_infoframe 🦋

okay so bestie, welcome to the struct drm_dsc_pps_infoframe(9) page of the Kernel API Manual 💅 this one's short and sweet and honestly kind of iconic — it's the little package that carries the Picture Parameter Set metadata around. let's get into it ✨

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✨ NAME ✨

struct drm_dsc_pps_infoframe — the DSC infoframe that carries the Picture Parameter Set Metadata 🎀

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🌸 SYNOPSIS 🌸

struct drm_dsc_pps_infoframe {
    struct dp_sdp_header pps_header;
    struct drm_dsc_picture_parameter_set pps_payload;
 };

like, that's the whole thing. two fields. main character energy honestly 🫶

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💖 Members 💖

• pps_header — the header for the PPS, following the DP SDP header format, and its type is struct dp_sdp_header. so yes, it's giving "header of a header" but in a slay way 🎀
• pps_payload — the PPS payload fields, exactly as laid out in DSC specification Table 4-1, as represented in struct drm_dsc_picture_parameter_set. no cap, it's just the payload doing payload things 💅

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🔥 Description 🔥

so this structure is literally the DSC PPS infoframe — the thing you need to send the Picture Parameter Set metadata before enabling VESA Display Stream Compression. like, you can't just turn DSC on and hope for the best bestie 😭💀

it's based on the DP Secondary Data Packet structure and, per the docs, it's made up of two parts:

• the SDP Header, as defined by struct dp_sdp_header in drm_dp_helper.h 🦋
• the PPS payload, defined in struct drm_dsc_picture_parameter_set 🌸

that's it, that's the whole vibe. two pieces, one infoframe, obsessed 👑

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⭐ SEE ALSO ⭐

• Kernel file ./include/drm/display/drm_dsc.h
• struct drm_dsc_rc_range_parameters(9)
• struct drm_dsc_config(9)
• struct drm_dsc_picture_parameter_set(9)

go read those too, they're lowkey part of the same friend group 💜

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okay that's the page!! sign-off time 🎀 this cutie lives over in ./include/drm/display, dated October 2026, and it's filed under struct drm_d...ps_infoframe(9) in the Kernel API Manual. mwah, go read some kernel source bestie 💅✨🌈