Storm Dragon
90 lines
1.8 KiB
Bash
Executable File
90 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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die() {
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echo "$*" >&2
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exit 1
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}
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usage() {
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cat <<'EOF' >&2
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Usage: convert-to-video.sh /path/to/audio.file
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Creates a slideshow video from stormux images and the provided audio.
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EOF
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exit 1
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}
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require_commands() {
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for cmd in "$@"; do
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command -v "$cmd" >/dev/null 2>&1 || die "Missing dependency: $cmd"
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done
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}
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locate_images() {
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local candidate="."
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local have_all=true
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for i in 1 2 3 4 5; do
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[ -f "$candidate/stormux${i}.png" ] || have_all=false
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done
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if [ "$have_all" = true ]; then
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printf '%s\n' "$candidate"
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return
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fi
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candidate="/usr/share/stormux/slideshow"
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for i in 1 2 3 4 5; do
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[ -f "$candidate/stormux${i}.png" ] || die "Missing image: $candidate/stormux${i}.png"
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done
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printf '%s\n' "$candidate"
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}
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detect_container() {
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local audio_file="$1"
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local codec
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codec="$(ffprobe -v error -select_streams a:0 -show_entries stream=codec_name -of csv=p=0 "$audio_file" || true)"
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case "$codec" in
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aac|mp3) echo "mp4" ;;
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*) echo "mkv" ;;
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esac
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}
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build_video() {
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local audio_file="$1"
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local image_dir="$2"
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local container="$3"
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local output_filename="$4"
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local output_dir="$HOME/Videos"
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mkdir -p "$output_dir"
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ffmpeg -y \
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-stream_loop -1 -framerate 1/35 -start_number 1 -i "$image_dir/stormux%d.png" \
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-i "$audio_file" \
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-map 0:v:0 -map 1:a:0 \
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-c:v libx264 -crf 18 -preset veryfast -r 30 -pix_fmt yuv420p \
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-c:a copy \
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-shortest \
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"$output_dir/${output_filename##*/}"
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}
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[ "$#" -eq 1 ] || usage
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audio="$1"
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[ -f "$audio" ] || die "Audio file not found: $audio"
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require_commands ffmpeg ffprobe
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image_dir="$(locate_images)"
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container="$(detect_container "$audio")"
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base="$(basename "$audio")"
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name="${base%.*}"
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output="${name}.${container}"
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build_video "$audio" "$image_dir" "$container" "$output"
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echo "Wrote $HOME/Videos/$output"
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