forked from unom/punktfunk
enricobuehlerandClaude Fable 5
1d4795666e
With PUNKTFUNK_PIPEWIRE_NV12=1 (bring-up gate), the PipeWire negotiation offers an NV12 LINEAR DMA-BUF pod (BT.709 limited pinned MANDATORY) ahead of the BGRx one, and gamescope's producer-side RGB->YUV pass replaces the host CSC entirely: the encoder imports the two-plane buffer as a profiled VIDEO_ENCODE_SRC image and the VCN encodes it directly. Contributed measurements: encode p99 2.9 ms (from ~4-4.5 ms via EFC RGB-direct), 60 fps capture, 0 send drops. Hardening on top of the contributed patch: - unaligned modes (1080p!) stage through a padded aligned NV12 copy (edge rows/columns duplicated, transfer-only) instead of direct-importing the visible-size buffer -- a direct import would make the VCN read past the producer allocation, the exact OOB class behind the 2026-07-20 field GPU reset; the encode extents return to the aligned coded extent everywhere - the UV plane layout honors the producer's plane-1 chunk (offset/stride) when the SPA buffer carries one (same-BO verified by inode), with the contiguous-plane contract as fallback - PyroWave sessions are excluded from the gate (their Vulkan compute CSC ingests packed RGB), and a native-NV12 session that resolves to libav VAAPI (H264 codec, PUNKTFUNK_VULKAN_ENCODE=0, feature off, or a failed Vulkan open) refuses at open instead of streaming garbage chroma - pad staging images carry TRANSFER_SRC (the width-padding pass self-copies the staging image -- previously missing on 1366-wide modes) - metadata-cursor one-shot warn (parity with RGB-direct) and a padded-NV12 PUNKTFUNK_PERF split label; the padded RGB copy gets its timestamps too Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>