dragonflight/services/capture
Wild Dragon Dev 01211fef7a fix(framecache): address critical bugs from code review
C-Bug 1 (Torn read): fc_client.c zero-copy pointer replaced with consumer-owned
copy buffer + post-copy cursor revalidation to prevent reading torn frames when
the writer laps a slow consumer. New FC_LAPPED return code.
C-Bug 3 (Semaphore busy-spin): fc_client.c drains the semaphore (sem_trywait)
so the count never accumulates, relying entirely on write_cursor diff for
availability. Prevents 100% CPU loops + EOVERFLOW.
C-Bug 4 (GET /slots stack overflow): framecache.c uses heap allocation with
explicit bounds checking for JSON serialization instead of a 64KB stack buffer.
C-Bug 6 (DeckLink race): decklink-bridge uses pthread_mutex_t around fc_writer
calls and reopen_slot to prevent UAF/double-free from concurrent SDK callbacks.
C-Bug 2-net (Resolution resync): net_ingest explicitly scales to target W:H
so ffmpeg always outputs exactly frame_size bytes, ignoring source resolution
changes.
C-Bug 8 (strdup leak): net_ingest uses static caller-owned buffers for ffmpeg
args instead of strdup across listener reconnects.
C-Bug 9 (PROT_READ segfault): removed atomic write to hdr->dropped_frames from
the consumer read loop (which maps shm read-only).
2026-06-03 16:25:34 +00:00
..
decklink-bridge fix(framecache): address critical bugs from code review 2026-06-03 16:25:34 +00:00
deltacast-bridge feat(framecache): phase 2 — deltacast-bridge writes to shm ring 2026-06-03 15:13:20 +00:00
sdk chore(capture): commit Blackmagic DeckLink SDK 16.0 Linux headers 2026-05-31 18:07:12 -04:00
src fix(framecache): address critical bugs from code review 2026-06-03 16:25:34 +00:00
.dockerignore build(capture): add .dockerignore to keep stale bridge build/ out of image context 2026-06-02 15:23:03 +00:00
build-with-decklink.sh capture: custom FFmpeg 7.1 build with DeckLink + D-Bus mounts + SDI deinterlace 2026-05-22 00:01:43 +00:00
decklink-sdk16.patch fix(capture): proper SDK 16 patch via upstream FFmpeg master diff 2026-05-22 00:53:03 +00:00
Dockerfile feat(framecache): phase 4 — capture-manager reads from framecache 2026-06-03 15:32:40 +00:00
package.json add services/capture/package.json 2026-04-07 21:58:29 -04:00
patch_decklink.py fix(capture): proper SDK 16 patch via upstream FFmpeg master diff 2026-05-22 00:53:03 +00:00