marfrit/daedalus-decoder

T

marfrit 418053db8d Merge pull request 'Stage 2 PR-a: predicted samples plumbing — caller-supplied per-MB pixels' (#11 ) from noether/stage2-predicted-samples into main

Reviewed-on: #11

2026-05-25 21:07:28 +00:00

Stage 2 PR-a: predicted samples plumbing — caller-supplied per-MB pixels

2026-05-25 23:01:20 +02:00

Stage 2 PR-a: predicted samples plumbing — caller-supplied per-MB pixels

2026-05-25 23:01:20 +02:00

Stage 2 PR-a: predicted samples plumbing — caller-supplied per-MB pixels

2026-05-25 23:01:20 +02:00

.gitignore

scaffold: CMake + API skeleton + smoke test

2026-05-24 22:08:46 +02:00

CMakeLists.txt

phase1: substrate selector API + cross-substrate bit-exact ctest

2026-05-24 23:07:45 +02:00

DESIGN.md

Merge pull request 'design: §9 open questions → Phase 1 decisions (user confirmed 2026-05-24)' (#1 ) from noether/design-decisions into main

2026-05-24 19:58:41 +00:00

LICENSE

scaffold: CMake + API skeleton + smoke test

2026-05-24 22:08:46 +02:00

README.md

initial design doc — frame-level GPU H.264 decoder for V3D7

2026-05-23 22:44:03 +02:00

README.md

daedalus-decoder

Frame-level GPU H.264 decoder for Raspberry Pi 5 / V3D7. Design phase — not implemented yet.

The objective: build the NVDEC-equivalent shape on Pi 5. One Vulkan submit per frame, one fence wait per frame, encoded H.264 bitstream in, NV12 frame out. Reuses daedalus-fourier's V3D compute primitives at the right granularity — not the per-block-call granularity that the kernel-substitution prototype exposed as architecturally wrong.

Sibling projects:

daedalus-fourier — V3D + NEON kernel pack (IDCT, MC, deblock primitives). Stays as research/microbench artifact.
daedalus-v4l2 — V4L2 stateless decoder shim + userspace daemon for Pi 5. The eventual consumer of this decoder.
libva-v4l2-request-fourier — VAAPI ↔ V4L2 stateless bridge. End consumer.

See DESIGN.md for the architecture sketch.