Claude
eba8ddd550
- Overlay text was showing characters run together (e.g. '1n2n') because inside ffmpeg single-quoted filter text, \n is consumed as just 'n'. Fix: use \\\\n in bash double-quotes which stores \\n in the variable, which ffmpeg then parses as \n, which drawtext renders as a newline. Applied to both test-sunrise.sh (MID_VERT) and daily_sunrise_video.sh (SR_VERT, replacing the awk one-liner with the same bash approach). - test-sunrise.sh concat list was missing per-frame duration entries, causing 12 frames to encode as 0.48s (25fps default) and then slow down instead of compress. Fixed by writing 'duration INTERVAL' per frame so 12 frames × 10s = 120s raw → 12× compression to 10s. - Removed 2>/dev/null from audio ffmpeg call in test-sunrise.sh so capture failures are visible for diagnosis. https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
166 lines
6.9 KiB
Bash
Executable File
166 lines
6.9 KiB
Bash
Executable File
#!/bin/bash
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# test-sunrise.sh — smoke-test the sunrise pipeline using recent captured frames.
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#
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# Uses the same steps as daily_sunrise_video.sh:
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# 1. raw video from the most recent ~2 min of JPEGs (12 frames @ 10s interval)
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# 2. speed-adjust to SUNRISE_TARGET_SECS
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# 3. grab 10s of live RTSP audio centred on the mid-point frame
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# 4. mix audio + burn vertical time overlay
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#
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# Usage:
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# ./test-sunrise.sh [output_path]
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# ./test-sunrise.sh ~/drives/data2-main/test2.mp4
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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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ENCODE_PRESET="${ENCODE_PRESET:-slow}"
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CRF_SUNRISE="${CRF_SUNRISE:-28}"
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SUNRISE_TARGET_SECS="${SUNRISE_TARGET_SECS:-10}"
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SUNRISE_OVERLAY_OPACITY="${SUNRISE_OVERLAY_OPACITY:-0.45}"
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OUTPUT="${1:-/tmp/sunrise-test.mp4}"
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CAM="$SUNRISE_CAM"
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TODAY=$(date +%Y-%m-%d)
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image_dir="$BASE_DIR/$CAM/$TODAY"
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NUM_FRAMES=12 # ~2 minutes at 10s interval
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# ── Collect frames ────────────────────────────────────────────────────────────
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if [ ! -d "$image_dir" ]; then
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echo "ERROR: no frames today at $image_dir"
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echo " Is capture.sh running? systemctl --user status sky-cam-capture-${CAM}.service"
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exit 1
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fi
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mapfile -t frames < <(find "$image_dir" -name "*.jpg" | sort | tail -n "$NUM_FRAMES")
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if [ "${#frames[@]}" -lt 1 ]; then
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echo "ERROR: no frames found in $image_dir"
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exit 1
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fi
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echo "Frames: ${#frames[@]} most-recent from $image_dir"
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# ── Mid-point frame → overlay time ───────────────────────────────────────────
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mid_idx=$(( ${#frames[@]} / 2 ))
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mid_frame="${frames[$mid_idx]}"
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mid_hms=$(basename "$mid_frame" .jpg) # HH-MM-SS
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MID_TIME=$(echo "$mid_hms" | cut -c1-5 | tr '-' ':') # HH:MM
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echo "Mid-point frame: $mid_hms → overlay time: $MID_TIME"
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# Vertical text: each character on its own line.
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# Inside ffmpeg single-quoted text values, \ is an escape prefix so \n → n.
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# We need \\n so ffmpeg parses it as \n which drawtext renders as a newline.
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# In bash double-quotes \\\\n → \\n (the value stored in the variable).
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MID_VERT="${MID_TIME:0:1}\\\\n${MID_TIME:1:1}\\\\n${MID_TIME:2:1}\\\\n${MID_TIME:3:1}\\\\n${MID_TIME:4:1}"
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# ── Font detection ────────────────────────────────────────────────────────────
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FONT=""
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if command -v fc-match &>/dev/null; then
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FONT=$(fc-match "DejaVu Sans:style=Regular" --format="%{file}" 2>/dev/null || true)
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fi
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if [ -z "$FONT" ]; then
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for f in /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf \
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/usr/share/fonts/dejavu/DejaVuSans.ttf \
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/usr/share/fonts/TTF/DejaVuSans.ttf \
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/usr/share/fonts/truetype/freefont/FreeSans.ttf; do
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[ -f "$f" ] && { FONT="$f"; break; }
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done
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fi
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# ── Temp files ────────────────────────────────────────────────────────────────
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TMP_LIST=$(mktemp --suffix=.txt)
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TMP_RAW=$(mktemp --suffix=.mp4)
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TMP_SPED=$(mktemp --suffix=.mp4)
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TMP_AUDIO=$(mktemp --suffix=.m4a)
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cleanup() { rm -f "$TMP_LIST" "$TMP_RAW" "$TMP_SPED" "$TMP_AUDIO" 2>/dev/null || true; }
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trap cleanup EXIT
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# Write concat list with explicit duration per frame so raw video represents
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# real elapsed time: 12 frames × CAPTURE_INTERVAL seconds = ~2 minutes.
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# The final entry needs a duplicate without duration (ffmpeg concat requirement).
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for f in "${frames[@]}"; do
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printf "file '%s'\nduration %s\n" "$f" "${CAPTURE_INTERVAL:-10}"
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done >> "$TMP_LIST"
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printf "file '%s'\n" "${frames[-1]}" >> "$TMP_LIST"
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# ── Step 1: raw video from frames ─────────────────────────────────────────────
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echo ""
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echo "Step 1/4: encoding raw video from ${#frames[@]} frames..."
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ffmpeg -loglevel warning \
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-f concat -safe 0 -i "$TMP_LIST" \
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-c:v libx264 -pix_fmt yuv420p -preset "$ENCODE_PRESET" -crf "$CRF_SUNRISE" -vsync 2 -an \
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-y "$TMP_RAW"
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raw_dur=$(ffprobe -v error -show_entries format=duration -of csv=p=0 "$TMP_RAW")
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speed=$(echo "scale=3; $raw_dur / $SUNRISE_TARGET_SECS" | bc)
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echo " Raw: ${raw_dur}s speed: ${speed}x"
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# ── Step 2: speed-adjust to SUNRISE_TARGET_SECS ───────────────────────────────
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echo "Step 2/4: speed-adjust to ${SUNRISE_TARGET_SECS}s..."
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ffmpeg -loglevel warning \
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-i "$TMP_RAW" \
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-vf "setpts=PTS/$speed" \
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-c:v libx264 -pix_fmt yuv420p -preset "$ENCODE_PRESET" -crf "$CRF_SUNRISE" -an \
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-t "$SUNRISE_TARGET_SECS" \
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-y "$TMP_SPED"
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# ── Step 3: grab 10s of live audio centred on mid-point ──────────────────────
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# Connects to the RTSP stream briefly — audio from "right now" stands in for
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# the real sunrise-audio.m4a that capture.sh would record at sunrise.
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echo "Step 3/4: recording ${SUNRISE_TARGET_SECS}s of live audio from camera..."
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rtsp_var="CAM_RTSP_${CAM}"
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RTSP_URL="${!rtsp_var:-}"
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HAS_AUDIO=false
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if [ -n "$RTSP_URL" ]; then
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if ffmpeg -loglevel warning \
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-rtsp_transport tcp \
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-i "$RTSP_URL" \
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-t "$SUNRISE_TARGET_SECS" \
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-vn -c:a aac -b:a 64k \
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-y "$TMP_AUDIO"; then
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HAS_AUDIO=true
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echo " Audio: captured OK"
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else
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echo " Audio: capture failed — continuing without audio"
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fi
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else
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echo " Audio: CAM_RTSP_${CAM} not set — skipping"
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fi
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# ── Step 4: mix audio + burn overlay ─────────────────────────────────────────
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echo "Step 4/4: mix audio + overlay → $OUTPUT"
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mkdir -p "$(dirname "$OUTPUT")"
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FADE_OUT=$(echo "scale=1; $SUNRISE_TARGET_SECS - 0.5" | bc)
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DT="drawtext=fontfile='${FONT}'"
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DT="${DT}:text='${MID_VERT}'"
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DT="${DT}:fontcolor=white@${SUNRISE_OVERLAY_OPACITY}"
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DT="${DT}:fontsize=h/22:line_spacing=4"
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DT="${DT}:x=w-tw-18:y=(h-th)/2"
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DT="${DT}:shadowcolor=black@0.55:shadowx=1:shadowy=1"
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if $HAS_AUDIO; then
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ffmpeg -loglevel warning \
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-i "$TMP_SPED" -i "$TMP_AUDIO" \
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-filter_complex \
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"[0:v]${DT}[vout];\
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[1:a]afade=t=in:st=0:d=0.5,afade=t=out:st=${FADE_OUT}:d=0.5[aout]" \
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-map "[vout]" -map "[aout]" \
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-c:v libx264 -pix_fmt yuv420p -preset "$ENCODE_PRESET" -crf "$CRF_SUNRISE" \
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-c:a aac -b:a 128k \
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-y "$OUTPUT"
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else
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ffmpeg -loglevel warning \
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-i "$TMP_SPED" \
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-vf "$DT" \
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-c:v libx264 -pix_fmt yuv420p -preset "$ENCODE_PRESET" -crf "$CRF_SUNRISE" -an \
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-y "$OUTPUT"
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fi
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actual=$(ffprobe -v error -show_entries format=duration -of csv=p=0 "$OUTPUT")
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echo ""
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echo "Done: $OUTPUT (${actual}s, overlay: $MID_TIME)"
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