The image never built: CASPAR_URL pointed at a v2.3.3-stable Linux tarball
that CasparCG never published (2.3.x is Windows-only; Linux builds start at
2.4.0, and 2.4.1+ ship only as .deb). Rewrite to install the 2.5.0 noble
server + CEF debs on an ubuntu:24.04 base (Node 20 via nodesource), letting
apt resolve the GL/ffmpeg/openal runtime deps. Binary install dir is
discovered from the deb file list and symlinked to /opt/casparcg so the
entrypoint + config still run from there. Move CasparCG log/data dirs to
/media (writable mount) since the install dir may be read-only.
NOT runtime-validated: the 2.5 casparcg.config schema and the AMCP consumer
syntax (ADD <ch> STREAM/FILE) were authored against 2.3 and must be smoke-
tested against 2.5 before a channel start can be trusted.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
One container per channel. Built like capture/build-with-decklink: NDI +
DeckLink SDKs fetched at build, runs --privileged with Xvfb for the GL
context where no real display is present.
Components:
- entrypoint.sh: Xvfb + CasparCG launch, creates /media/live/<CHANNEL_ID>
- src/amcp.js: TCP AMCP client
- src/playout-manager.js: channel lifecycle, playlist walk via LOADBG AUTO
for gapless transitions; primary consumer (decklink/ndi/srt/rtmp) plus a
second FFMPEG HLS consumer (~600 kbps, 2s segments) for the UI preview
- src/index.js: HTTP shim — /channel/start, /playlist/load, transport
- frame-rate helper picks fps from video_format (59.94 → 60000/1001) so
SEEK / LENGTH frame math is correct
