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sunrise: quicker audio fades, raise overlay, yesterday-audio fallback

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- Shorten audio fade in/out to 0.3s so they fit comfortably in the 10s clip.
- Lift the sunrise-time overlay by ~5% of frame height to clear the
  burnt-in timestamp on the source images.
- When today's sunrise recording is missing, fall back to yesterday's
  clip before reaching for the library fallback.
This commit is contained in:
Claude
2026-04-24 12:15:07 +00:00
parent 381e03453c
commit 63b4d2e2d9
1 changed files with 19 additions and 9 deletions
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daily_sunrise_video.sh
+19 -9
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@@ -211,7 +211,7 @@ if [ "${SUNRISE_OVERLAY_ENABLED:-true}" = "true" ]; then
fi
DT="${DT}:fontcolor=yellow@${SUNRISE_OVERLAY_OPACITY}"
DT="${DT}:fontsize=h/22:line_spacing=4"
DT="${DT}:x=w-tw-18:y=h-th-18"
DT="${DT}:x=w-tw-18:y=h-th-18-h*0.05"
DT="${DT}:shadowcolor=black@0.55:shadowx=1:shadowy=1"
fi
@@ -251,12 +251,21 @@ else
audio_src="$cam_audio"
echo "Audio: camera recording (centred on sunrise)"
else
library_dir="$SCRIPT_DIR/sunrise-sounds"
if [ -d "$library_dir" ]; then
random_file=$(find "$library_dir" -name "*.mp3" | shuf -n 1 2>/dev/null || true)
if [ -n "$random_file" ]; then
audio_src="$random_file"
echo "Audio: library fallback $(basename "$audio_src")"
# Yesterday fallback before library: keeps the clip on-site
yesterday_date=$(date -d "yesterday" +%Y-%m-%d)
yday_audio="${AUDIO_DIR:-$BASE_DIR/audio}/sunrise/$CAM_NAME/$yesterday_date/sunrise-audio.m4a"
[ ! -f "$yday_audio" ] && yday_audio="$BASE_DIR/$CAM_NAME/$yesterday_date/sunrise-audio.m4a"
if [ -f "$yday_audio" ]; then
audio_src="$yday_audio"
echo "Audio: yesterday's recording ($yesterday_date)"
else
library_dir="$SCRIPT_DIR/sunrise-sounds"
if [ -d "$library_dir" ]; then
random_file=$(find "$library_dir" -name "*.mp3" | shuf -n 1 2>/dev/null || true)
if [ -n "$random_file" ]; then
audio_src="$random_file"
echo "Audio: library fallback $(basename "$audio_src")"
fi
fi
fi
fi
@@ -279,7 +288,8 @@ if $TEST_MODE; then
else
final_video="$output_dir/$CAM_NAME-$current_date-daily-sunrise.mp4"
fi
fade_out=$(echo "scale=1; $SUNRISE_TARGET_SECS - 0.5" | bc)
fade_dur=0.3
fade_out=$(echo "scale=2; $SUNRISE_TARGET_SECS - $fade_dur" | bc)
# ── Step 3a: mix audio (video copied, not re-encoded) ────────────────────────
work_video="$sped_video"
@@ -291,7 +301,7 @@ if [ -n "$audio_src" ]; then
if ffmpeg -loglevel warning \
-i "$sped_video" \
-ss "$audio_offset" -t "$SUNRISE_TARGET_SECS" -i "$audio_src" \
-filter_complex "[1:a]afade=t=in:st=0:d=0.5,afade=t=out:st=${fade_out}:d=0.5[aout]" \
-filter_complex "[1:a]afade=t=in:st=0:d=${fade_dur},afade=t=out:st=${fade_out}:d=${fade_dur}[aout]" \
-map "0:v" -map "[aout]" \
-c:v copy -c:a aac -b:a 128k \
-y "$temp_audio"; then