📦 deps(thirdparty): update snapshots
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#!/usr/bin/env bash
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# Download video (<=720p) + best subtitles for slide/transcript extraction.
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# Usage: download.sh "<YTID>" "<scratch_dir>"
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set -euo pipefail
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YTID="${1:?usage: download.sh <YTID> <scratch_dir>}"
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OUT="${2:?usage: download.sh <YTID> <scratch_dir>}"
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mkdir -p "$OUT"
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URL="https://www.youtube.com/watch?v=$YTID"
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# Video: 720p mp4 is plenty for 1280px slide frames; merge to a single file.
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yt-dlp -f "bestvideo[height<=720][ext=mp4]+bestaudio[ext=m4a]/best[height<=720]" \
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--merge-output-format mp4 -o "$OUT/video.%(ext)s" "$URL"
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# Subtitles: prefer human captions, fall back to auto. English variants.
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yt-dlp --skip-download --write-subs --write-auto-subs \
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--sub-langs "en.*,en" --sub-format vtt -o "$OUT/subs.%(ext)s" "$URL" || true
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# Metadata for title/uploader.
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yt-dlp --skip-download --print "%(title)s\n%(uploader)s\n%(duration)s" "$URL" \
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> "$OUT/meta.txt" 2>/dev/null || true
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echo "--- downloaded to $OUT ---"
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ls -la "$OUT"
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echo "title/uploader/duration:"; cat "$OUT/meta.txt" 2>/dev/null || true
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