Zac Gaetano
27a868aa5c
CasparCG's bundled FFMPEG/HLS consumer muxes a broken audio track (aac sample_rate=0, time_base 1/0) into the preview, and silently drops every arg that would remove it (-an, -codec:a, -g, -r all "Unused option"). That corrupt audio black-screens the browser preview because neither ffmpeg nor hls.js can decode the playlist. Re-architect the preview path: CasparCG now STREAMs plain mpegts to a UDP loopback port, and a Node-spawned STANDALONE ffmpeg (where -an actually works) re-muxes it to clean, video-only HLS with -c:v copy. The child process is tracked, auto-respawned while running, and killed in stopChannel(). The PRIMARY SRT/RTMP/SDI/NDI output (with program audio) is untouched. Also fix the Dockerfile to match the working image: ubuntu:22.04 base + CasparCG 2.4.0 ubuntu22 zip + NodeSource Node 20, and add a standalone ffmpeg CLI. The old 2.3.3 tarball URL 404s. entrypoint.sh updated for the 2.4.x bin/casparcg layout + bundled lib/ LD_LIBRARY_PATH. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
59 lines
2 KiB
Bash
59 lines
2 KiB
Bash
#!/usr/bin/env bash
|
|
set -euo pipefail
|
|
|
|
# Headless GL: start a virtual framebuffer unless a real DISPLAY is provided
|
|
# (a GPU node may pass through an X socket). CasparCG's mixer needs a GL context.
|
|
if [ -z "${DISPLAY:-}" ]; then
|
|
echo "[entrypoint] starting Xvfb on :99"
|
|
Xvfb :99 -screen 0 1920x1080x24 -nolisten tcp &
|
|
export DISPLAY=:99
|
|
for i in $(seq 1 20); do
|
|
[ -e /tmp/.X11-unix/X99 ] && break
|
|
sleep 0.25
|
|
done
|
|
fi
|
|
|
|
# Ensure the HLS preview directory exists before the re-mux ffmpeg writes to it
|
|
# (mam-api serves /live/<channel_id>/* from the shared media volume).
|
|
if [ -n "${CHANNEL_ID:-}" ]; then
|
|
mkdir -p "/media/live/${CHANNEL_ID}"
|
|
fi
|
|
|
|
mkdir -p /media/casparcg/log /media/casparcg/data /media/templates
|
|
|
|
# CEF (HTML producer) initialises an NSS database at /root/.pki/nssdb and
|
|
# Chrome caches under HOME. Pre-create writable dirs so CEF doesn't SIGABRT
|
|
# ~30s into the run when it first lazily inits.
|
|
mkdir -p /root/.pki/nssdb /root/.cache /tmp/cef-cache
|
|
chmod 700 /root/.pki/nssdb
|
|
export HOME=/root
|
|
|
|
# 2.4.x zip bundles its own .so files under lib/ — add to LD_LIBRARY_PATH.
|
|
export LD_LIBRARY_PATH="/opt/casparcg/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
|
|
|
|
cd /opt/casparcg
|
|
CASPAR_CFG=/opt/casparcg/casparcg.config
|
|
# 2.4.x: binary at bin/casparcg. 2.5.x: symlinked to casparcg at root.
|
|
if [ -x "./bin/casparcg" ]; then CASPAR_BIN="./bin/casparcg";
|
|
elif [ -x "./casparcg" ]; then CASPAR_BIN="./casparcg";
|
|
elif [ -x "./CasparCG Server" ]; then CASPAR_BIN="./CasparCG Server";
|
|
elif command -v casparcg >/dev/null; then CASPAR_BIN="casparcg";
|
|
else echo "[entrypoint] ERROR: casparcg binary not found"; exit 1; fi
|
|
echo "[entrypoint] launching CasparCG: $CASPAR_BIN $CASPAR_CFG"
|
|
"$CASPAR_BIN" "$CASPAR_CFG" &
|
|
CASPAR_PID=$!
|
|
|
|
term() {
|
|
echo "[entrypoint] terminating CasparCG ($CASPAR_PID)"
|
|
kill -TERM "$CASPAR_PID" 2>/dev/null || true
|
|
wait "$CASPAR_PID" 2>/dev/null || true
|
|
exit 0
|
|
}
|
|
trap term SIGTERM SIGINT
|
|
|
|
cd /app
|
|
node src/index.js &
|
|
NODE_PID=$!
|
|
|
|
wait -n "$CASPAR_PID" "$NODE_PID"
|
|
term
|