Audio:
AUDIO_DIR/<cam>/YYYY-MM-DD/<cam>-HH-MM-SS.m4a
Movies — cam name now always leads the filename:
daily_sunrise_video.sh:
east-2026-04-22-daily-sunrise.mp4
east-2026-04-22-daily-sunrise-sped.mp4 (intermediate)
east-2026-04-22-daily-sunrise-test.mp4 (demo)
4-seasons.sh:
east-2026-04-21_Mvt2-Day2of31-final.mp4 (was: 2026-04-21_east_Mvt2-...)
montage-mvt.sh:
east-2026-03-20_Spring_Mvt1-Sped.mp4
east-2026-03-20_Spring_Mvt1-Montage.mp4
year-end-join.sh:
east-2026.mp4 (already had cam at front)
sunrise2mm.py updated to look for the new east-YYYY-MM-DD-daily-sunrise.mp4
filename. Retention find patterns (wildcards) already match both formats.
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
sky-cam.conf:
- MUSIC_DIR now uses override pattern (MUSIC_DIR="${MUSIC_DIR:-$SCRIPT_DIR/music}")
so the real path can be set in .env without hardcoding it
- LATITUDE/LONGITUDE use override pattern; set real coords in .env to keep
location private and out of git
- NTFY_URL now uses override pattern with empty default; set in .env
- NTFY_ENABLED moved out of comments into active config with false default
sunrise.py:
- Reads .env after sky-cam.conf so .env values override (same source order
as sky-cam.conf itself)
- Handles ${VAR:-default} bash syntax when parsing sky-cam.conf values
All completion notifications now include the full output file path so you
can tell at a glance where the file landed:
- daily_sunrise_video.sh: "filename — Xs, sunrise at HH:MM | /full/path"
- 4-seasons.sh: "filename — Xs | /full/path"
- montage-mvt.sh: "filename | checks | /full/path | verify: ..."
- year-end-join.sh: "filename — Xmin | /full/path" (also adds [cam] to title)
install.sh .env.example now includes LATITUDE, LONGITUDE, MUSIC_DIR, NTFY_URL
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
Short adagio movements (Summer Mvt 2 at 107s, Winter Mvt 2 at 132s, etc.)
compress each day to only 3-5 seconds of screen time at 1×. Looping the
music N times multiplies the per-day target duration proportionally so the
footage is less aggressively sped up and more watchable.
- sky-cam.conf: add MONTAGE_MUSIC_LOOPS and per-movement overrides
(Summer Mvt2=3×, Winter Mvt2=3×, Autumn Mvt2=2×, Summer Mvt3=2×, Spring Mvt2=2×)
- 4-seasons.sh: multiply target_per_clip by loops
- montage-mvt.sh: compute effective_duration, use -stream_loop for audio,
fix fade_out_start, -t, and post-build duration check
- make-finals.sh: multiply target by loops
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
- sky-cam.conf: add ENCODE_PRESET=slow (applied to all encodes);
split CRF_MONTAGE (intermediates, H.264) from CRF_MONTAGE_FINAL=22
(archive montage, H.265); add SUNRISE_RETENTION_DAYS=10; improve
CAPTURE_INTERVAL comment with storage/density table
- montage-mvt.sh: steps 1+2 use preset; step 3 final switches to
libx265 + CRF_MONTAGE_FINAL + -tag:v hvc1 for broad compatibility
- 4-seasons.sh: both encode steps use ENCODE_PRESET
- daily_sunrise_video.sh: all encode steps use ENCODE_PRESET; rolling
retention deletes sunrise videos older than SUNRISE_RETENTION_DAYS
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
- verify-mvt.sh: remove dead first _info= line (used MVT_START before
defined); fix JPEG size loop to accumulate bytes correctly and display
human-readable total; show size in delete confirmation
- montage-mvt.sh: grep -c uses || echo 0 instead of || true to be
unambiguous about the no-match value under set -e
- capture.sh, capture-watchdog.sh: require camera name arg, remove
silent SUNRISE_CAM fallback
- migrate-seasons.sh: require --cam arg, error if missing
- README.md, sky-cam.conf: remove stale fullday-video.sh references;
README pipeline diagram updated to show verify-mvt.sh
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
No script defaults to SUNRISE_CAM (east) for the seasons pipeline.
Every direction is treated equally — camera name is a required arg,
not an optional override.
- 4-seasons.sh: $1 required, exits with usage if missing
- montage-mvt.sh: arg order changed to <cam> [date]; $1 required
- year-end-join.sh: $2 (cam) required
- verify-mvt.sh: $4 (cam) required
- migrate-seasons.sh: example commands updated to new arg order
- README.md: montage-mvt.sh examples updated
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
- sky-cam.conf: CAMERAS now includes east, north, south with staggered
SCHEDULE_SEASONS times (01:00, 01:30, 02:00); fullday schedules and
tuning removed
- install.sh: fullday service/timer generation removed entirely
- fullday-video.sh + systemd units: deleted
- montage-mvt.sh: post-build technical checks (duration drift, video/audio
stream presence) added; notification now includes check results and the
exact verify-mvt.sh command to run
- verify-mvt.sh: new interactive CLI for montage review — shows checks,
plays video, deletes source JPEG folders on approval, or re-runs montage
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
The old pattern *Mvt*3* matched .mp3 in every MP3 filename, so sort|head-1
always picked track 01 (Mvt1). Fix by finding all files for the season
then filtering with grep -iE "Mvt[^0-9]*N[^0-9]", which requires the
movement number to be surrounded by non-digit characters (space, dot,
underscore) and cannot match digits embedded in .mp3 or track prefixes.
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
montage-mvt.sh, year-end-join.sh: CAM_NAME fallback referenced undefined
\$CAM_NAME — crashes under set -euo pipefail on manual runs without args.
Fixed to fall back to \$SUNRISE_CAM (same fix applied earlier to other scripts).
notify.sh: Mattermost notification guard only checked MM_NOTIFY_CHANNEL_ID,
not mattermost_url or access_token. If those are unset, curl would send a
malformed request silently. Added guards for all three required values.
install.sh: seasons/fullday service units had literal \n in After=/Wants=
lines because bash does not interpret \n in heredoc variable expansions.
Changed to \$'...' syntax so actual newlines are written, making valid
systemd unit files. Also: audio capture timer now uses \$SCHEDULE_SUNRISE
instead of hardcoded 03:00, keeping it in sync if the user changes the
schedule.
sunrise-audio-capture.sh: record_start_sec could theoretically go negative
(sunrise very early + large SUNRISE_TARGET_SECS). Added floor-at-zero guard.
daily_sunrise_video.sh: added comment explaining why audio_offset is always 0.
README.md: fix CAM_RTSP_sunrise example to CAM_RTSP_east.
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
daily_sunrise_video.sh: use \$MOVIES_DIR instead of \$BASE_DIR/movies so the
override in sky-cam.conf is respected when videos live on a separate drive.
capture.sh: default camera name falls back to \$SUNRISE_CAM (not the
undefined \$CAM_NAME) when no argument is passed.
sunrise2mm.py: also loads .env after sky-cam.conf so Mattermost credentials
moved to .env are actually visible to the upload script.
sunrise.py: raise a clear error message when LATITUDE/LONGITUDE/TIMEZONE
are missing from sky-cam.conf instead of an opaque KeyError.
4-seasons.sh, montage-mvt.sh: capture season_info.py output before eval so
a Python failure exits cleanly with a diagnostic message rather than
silently continuing with undefined variables.
bootstrap.sh: add system package install step (ffmpeg bc fonts-dejavu) and
show the .env setup step after install.sh generates .env.example.
README.md: correct Python package names and add fonts-dejavu dependency.
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
Sunrise:
- Overlay failure no longer exits 1; the speed-only video is renamed to the
expected final path so OnSuccess still fires and the upload still happens
- sunrise2mm.py now notifies on every upload outcome (success, post failure,
file-not-found) via notify.sh so the user always knows whether the video
reached Mattermost
Montage:
- Music+overlay failure no longer exits 1; the sped video is promoted to the
*-Montage.mp4 path so year-end-join can still include this movement (as a
silent, no-overlay clip) and the user is notified of the degraded output
- Year-end join trigger is now outside the success/failure branch so it fires
in both cases
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
Each pipeline now saves intermediate files permanently before the step most
likely to fail, so a partial failure leaves a recoverable artifact:
- daily_sunrise_video.sh: speed-adjusted video (*-sped.mp4) survives if the
drawtext overlay step fails; deleted automatically on success
- montage-mvt.sh: speed-adjusted video (*-Sped.mp4) survives if the
music-mux + attribution overlay step fails; deleted on success
- 4-seasons.sh / montage-mvt.sh / year-end-join.sh: explicit ffmpeg error
handling with targeted notify.sh calls naming the failed step and the
surviving artifact path
- montage-mvt.sh / 4-seasons.sh / year-end-join.sh: clip-duration-sum vs
music-duration drift check warns when cumulative float error exceeds 2 s
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
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
sky-cam.conf:
- CAMERAS array replaces single CAM_NAME; add a name, add its schedules,
re-run install.sh — no script editing needed
- SCHEDULE_SUNRISE, SCHEDULE_SEASONS_<cam>, SCHEDULE_FULLDAY_<cam> replace
hardcoded times in install.sh
- Notification options commented out (uncomment to enable)
- Lat/lon set to mid-Atlantic (25.0, -38.0) as neutral placeholder
install.sh:
- Loops over CAMERAS to generate per-camera sky-cam-seasons-<cam> and
sky-cam-fullday-<cam> timers with schedules from conf
- Sunrise timer remains a single sky-cam-sunrise unit (SUNRISE_CAM only)
fullday-video.sh, 4-seasons.sh, montage-mvt.sh, year-end-join.sh:
- Each accepts camera name as an argument (systemd passes it via ExecStart)
and falls back to conf default when run manually without an arg
- Camera name propagates through the full call chain:
4-seasons → montage-mvt → year-end-join
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
- sunrise_video.10s.sh: use $TIMEZONE (was hardcoded America/New_York),
$SUNRISE_PRE_MIN/$SUNRISE_POST_MIN for capture window, $SUNRISE_TARGET_SECS
for output duration (was wrong value 8 in a script named 10s)
- fullday-video.sh: remove hardcoded FULLDAY_FPS/RETENTION_DAYS; both now
come from sky-cam.conf
- 4-seasons.sh, montage-mvt.sh: export TIMEZONE after sourcing conf so
season_info.py subprocess picks it up via env rather than falling back
to its hardcoded America/New_York default
- sky-cam.conf: add SUNRISE_PRE_MIN, SUNRISE_POST_MIN, SUNRISE_TARGET_SECS,
FULLDAY_FPS, RETENTION_DAYS
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
sky-cam.conf
- Add SCRIPT_DIR (install location) and CAM_NAME (camera/folder name)
- These are the only values that change when deploying to a new machine
install.sh (new)
- Sources sky-cam.conf, generates all systemd .service and .timer units
with correct ExecStart paths, then enables and starts the timers
- Run once after editing sky-cam.conf; run again if paths change
- Supports --system flag for system-wide install
All .sh scripts + sunrise2mm.py
- No hardcoded paths remain
- script_name=$(basename ...) derivation replaced by $CAM_NAME from conf
- sunrise_video.10s.sh now sources sky-cam.conf for BASE_DIR, CAM_NAME,
and SCRIPT_DIR (replaces all /home/motion/... references)
- sunrise2mm.py builds video path from BASE_DIR + CAM_NAME in conf
systemd/ template files kept as reference but no longer need editing
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
sky-cam.conf (new)
- Single file replaces mattermost_config.txt reference, notify_config.txt,
and the hardcoded BASE_DIR/MUSIC_DIR/TIMEZONE scattered across scripts
- Bash-sourceable and Python key=value readable (same format)
All .sh scripts
- source sky-cam.conf at startup; BASE_DIR / MUSIC_DIR from config
sunrise2mm.py
- Reads sky-cam.conf relative to script location; no hardcoded path
notify.sh
- Sources sky-cam.conf; Mattermost credentials come from there directly,
no separate mattermost_config.txt lookup needed
systemd/sky-cam-notify-failure@.service (new)
- Template unit called by OnFailure= in each service
- Sends notification via notify.sh when any sky-cam job fails
- All three .service units now have OnFailure=sky-cam-notify-failure@%n.service
Removed: notify_config.txt, sky-cam.crontab (superseded)
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
season_info.py
- Add ASTRO_YEAR: year of the Winter solstice that started the current cycle
(Spring/Summer/Autumn 2026 → 2025; Winter Dec-2026 → 2026)
4-seasons.sh
- Daily clip output path now includes ASTRO_YEAR:
movies/$name/$ASTRO_YEAR/$SEASON/Mvt$N/
montage-mvt.sh (full rewrite)
- Attribution is now a drawtext overlay (top 6 s of the video, fade in/out)
instead of an appended black card — no frame-size matching needed, and
year-end join requires no special handling
- Output path mirrors the new year-based folder structure
- Sends notification via notify.sh when done
- Automatically triggers year-end-join.sh after Autumn Mvt 3
year-end-join.sh (new)
- Concatenates all 12 movement montages for a given ASTRO_YEAR
- Output: movies/$name/$ASTRO_YEAR/$name-$ASTRO_YEAR.mp4
- Sends notification when done
notify.sh + notify_config.txt (new)
- Generic best-effort notification helper: ntfy, email, Mattermost text post
- All methods disabled by default; user fills in notify_config.txt
sky-cam.crontab + systemd/ (new)
- Crontab file: sunrise at 09:00, 4-seasons at 01:00, fullday at 02:00
- systemd .service + .timer units for all three daily jobs
- montage/year-end triggered internally, not by cron
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
season_info.py (new):
- Computes actual equinox/solstice dates via Jean Meeus approximation
- Converts to LOCAL timezone (pytz / zoneinfo) so the calendar date reflects
what the camera sees on the ground, including DST transitions
- Timezone defaults to America/New_York; override via $TIMEZONE env or 2nd arg
- Divides each season into 3 equal movements; handles Winter's year boundary
- Outputs IS_LAST_DAY=true on the final day of each movement
4-seasons.sh:
- Uses season_info.py for all date/season logic (no hardcoded day-of-year)
- Passes $yesterday to season_info.py so astronomical dates are correct
- Removed forced 1280x720 scale; clips stay at native camera resolution
- Auto-triggers montage-mvt.sh "$yesterday" on last day of movement so the
correct movement (not the next day's) is compiled
montage-mvt.sh:
- Accepts optional YYYY-MM-DD argument (passed by 4-seasons.sh) so it
resolves the correct season/movement when run the morning after last day
- Detects source resolution from first daily clip via ffprobe; attribution
card is generated at that exact resolution — no resizing of main video
- Font sizes proportional to frame height so text looks right at any res
- License corrected to CC BY-SA 3.0 (was CC BY-NC-SA 4.0)
fullday-video.sh:
- Removed 30-minute target; video length is natural (num_images / FPS)
- Default FULLDAY_FPS=5 (configurable at top of script)
- Retains RETENTION_DAYS=10 auto-delete for full-day videos only
- Sunrise 10s uploads and montage videos are never auto-deleted
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
4-seasons.sh:
- Fix per-video target duration: divide by days_in_movement (~30) not
days_in_season (~90), so concatenated clips sum to the movement's
music duration
- Force consistent 1280x720 output (scale+pad) to prevent resolution
mismatches when montage-mvt.sh concatenates across days
- Use ffprobe (not ffmpeg stderr parsing) for reliable duration reading
- Add music-dir fallback to repo-local music/ folder
- Remove the 2× music-doubling workaround (root cause fixed above)
montage-mvt.sh — complete rewrite:
- Proper season/movement detection matching 4-seasons.sh logic
- Step 1: concat all *-final.mp4 clips, normalise to 1280x720
- Step 2: speed-adjust concatenated video to exactly match music duration
- Step 3: merge with Vivaldi movement audio + 2 s video/audio fade in/out
- Step 4: generate 7-second black attribution card (drawtext) crediting
John Harrison / Wichita State University Chamber Players / FMA /
CC BY-NC-SA 4.0
- Step 5: concat montage + attribution into final file
- Temp files cleaned up via EXIT trap
fullday-video.sh — new script:
- Full-day timelapse from yesterday's images targeting ~30 minutes
- Per-frame duration = 1800 / num_images (clamped 0.017–10 s/frame)
- 1280x720 output, video-only (no audio)
- Auto-deletes fullday videos older than 10 days
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
Claude