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