18 lines
584 B
Bash
18 lines
584 B
Bash
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#!/usr/bin/env bash
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# HEVC 主视角 MP4 转 H.264，供 VideoSwin 特征提取与 OpenCV 解码。
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# 用法:
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# ./scripts/remux_hevc.sh /path/to/source.mp4 [output.mp4]
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# 未指定输出时写入 input/remuxed/<stem>_h264.mp4
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set -euo pipefail
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ROOT="$(cd "$(dirname "$0")/.." && pwd)"
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SRC="${1:?用法: remux_hevc.sh <source.mp4> [output.mp4]}"
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STEM="$(basename "${SRC%.*}")"
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OUT="${2:-${ROOT}/input/remuxed/${STEM}_h264.mp4}"
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mkdir -p "$(dirname "$OUT")"
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echo "[remux] ${SRC} -> ${OUT}"
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ffmpeg -y -i "$SRC" -c:v libx264 -preset ultrafast -crf 23 -an "$OUT"
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echo "[done] ${OUT}"
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