Claude
6d68010691
Adds six CRF vars, AUDIO_BITRATE, and three MONTAGE_* overlay durations. Values match previous hardcoded defaults so behavior is unchanged. The same CRF appeared in several scripts but with intentionally different values per purpose (28 for draft intermediates, 26 for polished output). Each script's CRF is now its own variable in conf, so changing one never silently changes another. https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
71 lines
3.4 KiB
Bash
Executable File
71 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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# fullday-video.sh — create a natural-speed timelapse of yesterday's full day of
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# images at a fixed frame rate. Files older than RETENTION_DAYS are deleted
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# automatically. Sunrise 10-second uploads and montage videos are NOT touched.
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#
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# Run once per day from cron (e.g. 02:00 daily, after 4-seasons.sh).
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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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# Camera name: first argument overrides conf (systemd passes it via ExecStart).
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CAM_NAME="${1:-$CAM_NAME}"
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# ── Configuration ──────────────────────────────────────────────────────────────
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base_dir="$BASE_DIR"
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# FULLDAY_FPS and RETENTION_DAYS come from sky-cam.conf
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# ── Date / paths ──────────────────────────────────────────────────────────────
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yesterday=$(date --date="yesterday" +%Y-%m-%d)
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image_dir="$base_dir/$CAM_NAME/$yesterday"
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output_dir="$MOVIES_DIR/$CAM_NAME/fullday"
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mkdir -p "$output_dir"
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# ── Purge old full-day videos ─────────────────────────────────────────────────
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echo "Removing full-day videos older than $RETENTION_DAYS days..."
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find "$output_dir" -maxdepth 1 -name "*-fullday.mp4" -mtime "+$RETENTION_DAYS" -delete
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# ── Sanity checks ─────────────────────────────────────────────────────────────
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if [ ! -d "$image_dir" ]; then
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echo "WARNING: Image directory $image_dir not found — skipping."
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exit 0
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fi
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num_images=$(find "$image_dir" -type f -name "*.jpg" | wc -l)
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if [ "$num_images" -lt 1 ]; then
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echo "WARNING: No images in $image_dir — skipping."
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exit 0
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fi
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frame_dur=$(echo "scale=6; 1 / $FULLDAY_FPS" | bc)
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approx_min=$(echo "scale=1; $num_images / $FULLDAY_FPS / 60" | bc)
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echo "Images: $num_images at ${FULLDAY_FPS} fps ≈ ${approx_min} min"
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# ── Build concat list with per-frame duration ─────────────────────────────────
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# The concat demuxer needs an explicit duration per image; the last file is
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# repeated without a duration to correctly anchor the final frame's pts.
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temp_list=$(mktemp --suffix=.txt)
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trap 'rm -f "$temp_list"' EXIT
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find "$image_dir" -type f -name "*.jpg" | sort | while read -r img; do
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printf "file '%s'\nduration %s\n" "$img" "$frame_dur"
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done > "$temp_list"
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# Append last image again (required by ffmpeg concat demuxer for images)
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last_img=$(find "$image_dir" -type f -name "*.jpg" | sort | tail -n 1)
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printf "file '%s'\n" "$last_img" >> "$temp_list"
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# ── Encode — native camera resolution, no audio ───────────────────────────────
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output_file="$output_dir/${yesterday}-fullday.mp4"
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echo "Creating: $output_file"
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ffmpeg -loglevel warning \
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-f concat -safe 0 -i "$temp_list" \
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-c:v libx264 -pix_fmt yuv420p -crf "$CRF_FULLDAY" \
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-an -y "$output_file"
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actual_dur=$(ffprobe -v error -show_entries format=duration -of csv=p=0 "$output_file")
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echo "Done: $output_file (${actual_dur}s / $(echo "scale=1; $actual_dur/60" | bc) min)"
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