Files
ncmr-songs-videos/ffmpeg.sh
T
irene 74b70967a1 feat: add Remotion project scaffolding and subtitle tools
Remotion project:
- package.json with Remotion 4.0.522, React 19, Tailwind v4
- tsconfig.json (strict, ES2018, Bundler module resolution)
- remotion.config.ts (rspack, jpeg image format)
- ESLint flat config, Prettier config
- Root component and MyComposition placeholder (1280x720, 30fps, 60 frames)

Subtitle tools:
- src/lrc2srt.ts — LRC to SRT converter (minimal, no dependencies)
- ffmpeg.sh — helper for baking ASS subtitles or static-image+audio bypass
2026-09-09 17:35:35 +09:00

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980 B
Bash

#!/usr/bin/env bash
# ffmpeg helper — bake ASS subtitles into video, or bypass with static image + audio
#
# Usage:
# ffmpeg.sh bake <video> <audio> <subtitles.ass> <output>
# ffmpeg.sh bypass <image> <audio> <output>
#
# Prerequisites: ffmpeg must be on $PATH.
set -euo pipefail
usage() {
echo "Usage:"
echo " $0 bake <video> <audio> <subtitles.ass> <output>"
echo " $0 bypass <image> <audio> <output>"
exit 1
}
[ $# -eq 4 ] || usage
MODE="$1"
shift
case "$MODE" in
bake)
VIDEO="$1"
AUDIO="$1"
ASS="$1"
OUTPUT="$1"
ffmpeg -y \
-i "$VIDEO" \
-i "$AUDIO" \
-vf "ass=$ASS" \
-c:v libx264 \
-c:a aac \
-shortest \
"$OUTPUT"
;;
bypass)
IMAGE="$1"
AUDIO="$1"
OUTPUT="$1"
ffmpeg -y \
-loop 1 \
-i "$IMAGE" \
-i "$AUDIO" \
-c:v libx264 \
-tune stillimage \
-c:a aac \
-shortest \
"$OUTPUT"
;;
*)
usage
;;
esac