56 lines
1.8 KiB
Bash
56 lines
1.8 KiB
Bash
#!/bin/bash
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# 从YouTube视频下载字幕
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# 用法: ./download_subtitles.sh <YouTube_URL> [输出目录]
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# 优先下载人工字幕，无人工字幕则下载自动生成字幕
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# 语言优先级：中文 > 英文 > 其他
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set -e
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URL="$1"
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OUTPUT_DIR="${2:-.}"
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if [ -z "$URL" ]; then
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echo "用法: ./download_subtitles.sh <YouTube_URL> [输出目录]"
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exit 1
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fi
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mkdir -p "$OUTPUT_DIR"
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echo ">>> 检查可用字幕..."
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yt-dlp --list-subs --no-download "$URL" 2>/dev/null | tail -20
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echo ""
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echo ">>> 尝试下载人工字幕（中文优先）..."
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# 尝试1: 人工中文字幕
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if yt-dlp --write-subs --sub-langs "zh-Hans,zh-Hant,zh,zh-CN,zh-TW" --sub-format srt --skip-download -o "$OUTPUT_DIR/%(title)s" "$URL" 2>/dev/null; then
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FOUND=$(find "$OUTPUT_DIR" -name "*.srt" -newer /tmp/.ytdlp_marker 2>/dev/null | head -1)
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if [ -n "$FOUND" ]; then
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echo "✅ 下载成功: $FOUND"
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exit 0
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fi
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fi
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# 尝试2: 人工英文字幕
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echo ">>> 无中文人工字幕，尝试英文..."
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if yt-dlp --write-subs --sub-langs "en,en-US,en-GB" --sub-format srt --skip-download -o "$OUTPUT_DIR/%(title)s" "$URL" 2>/dev/null; then
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FOUND=$(find "$OUTPUT_DIR" -name "*.srt" -mmin -1 2>/dev/null | head -1)
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if [ -n "$FOUND" ]; then
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echo "✅ 下载成功: $FOUND"
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exit 0
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fi
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fi
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# 尝试3: 自动生成字幕（中文优先）
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echo ">>> 无人工字幕，尝试自动生成字幕..."
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if yt-dlp --write-auto-subs --sub-langs "zh-Hans,zh,en" --sub-format srt --skip-download -o "$OUTPUT_DIR/%(title)s" "$URL" 2>/dev/null; then
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FOUND=$(find "$OUTPUT_DIR" -name "*.srt" -o -name "*.vtt" 2>/dev/null | head -1)
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if [ -n "$FOUND" ]; then
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echo "✅ 自动字幕下载成功: $FOUND"
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exit 0
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fi
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fi
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echo "❌ 未找到任何可用字幕"
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exit 1
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