Claude
9707e5ca37
CAM_RTSP_<cam> is set in .env, not sky-cam.conf, but capture.sh was only sourcing sky-cam.conf — causing the service to fail with "not set" even after credentials were added to .env. https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
68 lines
2.0 KiB
Bash
Executable File
68 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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# capture.sh <cam-name> — continuous JPEG frame capture from a camera's RTSP
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# stream. Replaces MotionEye or any NVR for sky-cam's timelapse pipeline.
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# Pure ffmpeg — no NVR software required.
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#
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# Run as a long-running systemd service (Type=simple), one per camera.
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# install.sh generates sky-cam-capture-<cam>.service automatically when
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# CAM_RTSP_<cam> is set in sky-cam.conf.
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#
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# Writes: BASE_DIR/<cam>/YYYY-MM-DD/HH-MM-SS.jpg
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# Restarts ffmpeg at midnight so images land in the correct date directory.
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# On camera disconnect, waits 30 s then reconnects automatically.
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set -euo pipefail
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SCRIPT_DIR="$(dirname "$(realpath "$0")")"
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source "$SCRIPT_DIR/sky-cam.conf"
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source "$SCRIPT_DIR/.env" 2>/dev/null || true
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export TZ="$TIMEZONE"
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CAM="${1:-}"
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if [ -z "$CAM" ]; then
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echo "Usage: $0 <camera-name>"
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exit 1
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fi
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rtsp_var="CAM_RTSP_${CAM}"
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RTSP_URL="${!rtsp_var:-}"
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if [ -z "$RTSP_URL" ]; then
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echo "ERROR: CAM_RTSP_${CAM} not set in .env"
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exit 1
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fi
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INTERVAL="${CAPTURE_INTERVAL:-10}"
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echo "Starting capture: cam=$CAM interval=${INTERVAL}s"
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while true; do
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today=$(date +%Y-%m-%d)
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dir="$BASE_DIR/$CAM/$today"
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mkdir -p "$dir"
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# Run until midnight + 5 s so the new day's directory is ready on restart
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midnight=$(date -d "tomorrow 00:00:00" +%s)
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now=$(date +%s)
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duration=$(( midnight - now + 5 ))
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] Capturing → $dir (rollover in ${duration}s)"
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# -strftime 1 expands %H-%M-%S in the output path using the frame timestamp
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ffmpeg -loglevel warning \
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-rtsp_transport tcp \
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-i "$RTSP_URL" \
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-t "$duration" \
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-vf "fps=1/${INTERVAL}" \
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-f image2 \
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-strftime 1 \
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-q:v 2 \
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"${dir}/%H-%M-%S.jpg" || true
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# If ffmpeg exited before midnight the camera dropped — wait then retry
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if [ "$(date +%s)" -lt "$midnight" ]; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] [$CAM] stream lost — retrying in 30s"
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sleep 30
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else
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sleep 2 # brief pause at midnight before day rollover restart
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fi
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done
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