M3 WP-2, first half. params_h265.rs: VPS/SPS/PPS -> StdVideoH265* with
owned pointer-backing (the params.rs contract), scaling lists incl. the
32x32 two-matrix quirk and +8 DC convention, short-term RPS re-encoded
from the parser's RESOLVED DeltaPoc arrays back into delta_poc_sX_minus1
syntax under monotonicity checks, fallback_vps_from_sps for streams
whose VPS NALU was lost. pic_h265.rs: plan_to_vk_h265 — h265 AuPlan ->
StdVideoDecodeH265PictureInfo + per-reference infos; the binding set is
the union of the three current RPS sets with the Std index arrays
indexing into refs (0xFF unused; the GPU half must lay pReferenceSlots
out in refs order); NumDeltaPocsOfRefRpsIdx from the predicted-from
candidate; transactional SlotMap lifecycle identical to pic.rs. SlotMap
reused unmodified — HEVC's ceiling equals H.264's 16+1.
Envelope fails closed: Main/Main10/MainStill/RExt only, 4:2:0-8/10 +
4:4:4 only (separate_colour_plane_flag rejected — ChromaArrayType 0 in
disguise), SCC palette predictors out, >64 ST RPS sets / >16 per side /
>32 LT SPS candidates out, checked narrowing on every narrower Std
field. No panics on untrusted input.
Review round 9 (adversarial): RPS re-encode math, Std field-by-field
conformance, transactionality and slot ceiling verified clean; 6
findings fixed pre-commit. Headline (BLOCKING): long_term_ref_pics_
present_flag=1 with num=0 left pLongTermRefPicsSps NULL — the header
demands a valid pointer whenever the flag is set, and flag=1/num=0 is
exactly the punktfunk LTR/RFI recovery stream shape; the all-zero
backing now rides whenever the flag is set. Also: the slice_offsets doc
in BOTH pic modules claimed submit-as-planned while decoder.rs packs
slices-only and rebases (non-VCL NALUs in the decode range hang VCN
firmware) — reworded so the HEVC GPU half cannot implement the hang; a
concealment-produced ST/LT duplicate now ORs the long-term flag across
occurrences; NumDeltaPocs clamps became a typed error; dead
UnmappableLevelIdc variant dropped.
Deferred to the GPU half: HEVC caps/profile chain, session parameters
(VPS leg in the ledger), P010/4:4:4 pool selection, recording, and the
pReferenceSlots-in-refs-order contract consumption.
Gates: fmt clean; mac pf-vkdecode 80 + pf-bitstream 69 green, clippy
clean; container clippy -D warnings zero (pf-client-core, pf-presenter,
pf-vkdecode) + tests green (69/121/80).
enricobuehler
a34f4051fc