cuframes

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Author	SHA1	Message	Date
gx	a21812d3f6	tools+examples+test: end-to-end pipeline ready (Steps 9-10) cuframes-rtsp-source — standalone bridge между RTSP/file и cuframes IPC. Декодирует на CUDA (nvdec), копирует D2D в pre-allocated pool (EXTERNAL ownership), публикует через cuframes. --realtime для pacing файлового ввода, --loop для зацикливания. Альтернатива FFmpeg-фильтра до v0.2 (filter требует patch FFmpeg, конфликтует с Frigate's bundled build). examples/sub_count — reference subscriber на raw C API: counts frames, trackit gaps, выходит clean при disconnect/timeout/SIGINT. test_stress (4 subscribers × 2000 frames @ 120fps) — PASS на RTX 5090. 0 torn frames у всех consumers (включая 2 slow с 5ms sleep). Smoke-проверено: testsrc 25fps → cuframes-rtsp-source → cuframes IPC → sub_count (отдельный процесс) → 200/200 frames, 0 gaps, avg_fps=25.2.	2026-05-14 23:39:01 +01:00
gx	46c2b94939	libcuframes v0.1: producer + consumer (sync + async) + tests Implements Steps 3-6 of Phase 1 according to docs/protocol.md. libcuframes/src/: - internal.h (660 lines) — shared structs (byte-exact protocol.md layout) + _Static_assert на offsets/sizes - utils.c — error strings, frame size calc, now_ns, key validation - protocol.c — TLV framing для Unix socket с poll-based timeout - producer.c (~700 lines) — Step 3: * LIBRARY mode: cudaMalloc pool, IPC handle export * EXTERNAL mode: register user-provided pointers * cudaIpcEventHandle_t для cross-process sync (R1/R2) * Unix socket accept thread, handshake state machine * Bit allocation 1..31, name collision check (Y5) * STRICT_WAIT policy: timeout with dead-subscriber eviction - consumer.c (~400 lines) — Step 4: * Synchronous next() with poll-based wait * cudaStreamWaitEvent на consumer-stream (R1/R2) * Opaque cuframes_frame_t с accessor functions (Y6) * NEWEST_ONLY и STRICT_ORDER modes * ACK via atomic_fetch_or на bitmap - consumer_async.c — Step 5: thread + callback wrapper над sync API libcuframes/tests/: - test_pingpong.cu — single producer × single consumer, 200 frames @ 60fps, verify через kernel-on-consumer-stream (правильный test для sync semantics, см. spike-v2) - test_multi.cu — 1 producer × 3 consumers через fork() Build: - Top-level CMakeLists.txt с options - libcuframes/CMakeLists.txt: shared + static library, c_std_11 - Suppress -Waddress-of-packed-member (известная безопасная warning x86_64) Results (внутри cuframes-dev container, RTX 5090): - pingpong_basic PASS 4.5s 200 frames, 0 torn - multi_consumer PASS 4.1s 1 × 3 consumers, all PASS Phase 1 Step 6 done. Дальше: Step 7 (C++ wrapper), Step 9 (FFmpeg filter).	2026-05-14 23:21:30 +01:00

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a21812d3f6

tools+examples+test: end-to-end pipeline ready (Steps 9-10)

cuframes-rtsp-source — standalone bridge между RTSP/file и cuframes IPC.
Декодирует на CUDA (nvdec), копирует D2D в pre-allocated pool (EXTERNAL
ownership), публикует через cuframes. --realtime для pacing файлового
ввода, --loop для зацикливания. Альтернатива FFmpeg-фильтра до v0.2
(filter требует patch FFmpeg, конфликтует с Frigate's bundled build).

examples/sub_count — reference subscriber на raw C API: counts frames,
trackit gaps, выходит clean при disconnect/timeout/SIGINT.

test_stress (4 subscribers × 2000 frames @ 120fps) — PASS на RTX 5090.
0 torn frames у всех consumers (включая 2 slow с 5ms sleep).

Smoke-проверено: testsrc 25fps → cuframes-rtsp-source → cuframes IPC
→ sub_count (отдельный процесс) → 200/200 frames, 0 gaps, avg_fps=25.2.

2026-05-14 23:39:01 +01:00

46c2b94939

libcuframes v0.1: producer + consumer (sync + async) + tests

Implements Steps 3-6 of Phase 1 according to docs/protocol.md.

libcuframes/src/:
- internal.h     (660 lines) — shared structs (byte-exact protocol.md layout)
                                + _Static_assert на offsets/sizes
- utils.c        — error strings, frame size calc, now_ns, key validation
- protocol.c     — TLV framing для Unix socket с poll-based timeout
- producer.c     (~700 lines) — Step 3:
                    * LIBRARY mode: cudaMalloc pool, IPC handle export
                    * EXTERNAL mode: register user-provided pointers
                    * cudaIpcEventHandle_t для cross-process sync (R1/R2)
                    * Unix socket accept thread, handshake state machine
                    * Bit allocation 1..31, name collision check (Y5)
                    * STRICT_WAIT policy: timeout with dead-subscriber eviction
- consumer.c     (~400 lines) — Step 4:
                    * Synchronous next() with poll-based wait
                    * cudaStreamWaitEvent на consumer-stream (R1/R2)
                    * Opaque cuframes_frame_t с accessor functions (Y6)
                    * NEWEST_ONLY и STRICT_ORDER modes
                    * ACK via atomic_fetch_or на bitmap
- consumer_async.c — Step 5: thread + callback wrapper над sync API

libcuframes/tests/:
- test_pingpong.cu — single producer × single consumer, 200 frames @ 60fps,
                     verify через kernel-on-consumer-stream (правильный test
                     для sync semantics, см. spike-v2)
- test_multi.cu    — 1 producer × 3 consumers через fork()

Build:
- Top-level CMakeLists.txt с options
- libcuframes/CMakeLists.txt: shared + static library, c_std_11
- Suppress -Waddress-of-packed-member (известная безопасная warning x86_64)

Results (внутри cuframes-dev container, RTX 5090):
- pingpong_basic PASS  4.5s  200 frames, 0 torn
- multi_consumer PASS  4.1s  1 × 3 consumers, all PASS

Phase 1 Step 6 done. Дальше: Step 7 (C++ wrapper), Step 9 (FFmpeg filter).

2026-05-14 23:21:30 +01:00

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