128e0f087d
Add FORK_NOTES.md describing the new features, a README pointer, and keep the known-good baseline encoder as contrib/dvd-safe-converter.sh (the reference the Compatibility profile is modelled on). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
49 lines
1.1 KiB
Bash
Executable file
49 lines
1.1 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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# Reference "DVD-safe" NTSC MPEG-2 encoder.
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#
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# This is the known-good baseline that the DeVeDe-NG hardsub fork's
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# "Compatibility (4500k)" encode profile is modelled on. It is kept here as a
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# standalone tool and as a regression reference: the fork's generated ffmpeg
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# command for the Compatibility profile (without subtitle burn-in) should
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# produce equivalent output (mpeg2video / 720x480 / 29.97fps / AC3 192k 48kHz).
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#
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# It does NOT detect or burn subtitles and does NOT split long movies; those
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# features live in the GUI fork (see FORK_NOTES.md).
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if [ $# -lt 1 ]; then
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echo "Usage: $0 input_video"
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exit 1
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fi
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INPUT="$1"
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BASENAME="$(basename "$INPUT")"
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NAME="${BASENAME%.*}"
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OUTPUT="${NAME}-dvdsafe.mpg"
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echo "Input: $INPUT"
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echo "Output: $OUTPUT"
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echo "Encoding DVD-safe MPEG-2 (CBR 4500k)..."
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ffmpeg -y -i "$INPUT" \
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-vf "scale=720:480:flags=lanczos,\
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fps=30000/1001,\
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format=yuv420p,\
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setsar=1" \
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-r 30000/1001 \
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-c:v mpeg2video \
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-b:v 4500k \
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-minrate 4500k \
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-maxrate 4500k \
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-bufsize 1835k \
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-g 15 \
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-sc_threshold 0 \
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-pix_fmt yuv420p \
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-c:a ac3 \
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-b:a 192k \
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-ar 48000 \
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-ac 2 \
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"$OUTPUT"
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echo "Done: $OUTPUT"
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