Midv912engsub Convert015856 Min Work
Save this as convert_min.sh (Linux/macOS) or convert_min.bat (Windows with FFmpeg in PATH).
#!/bin/bash # Minimal work converter: midv912 -> trimmed + hardsub.INPUT="midv912.mkv" SUBS="english.srt" START="01:58:56" OUTPUT="midv912_engsub_trimmed.mp4"
ffmpeg -ss $START -i "$INPUT" -vf "subtitles=$SUBS"
-c:v libx264 -preset ultrafast -crf 23
-c:a copy -movflags +faststart "$OUTPUT" midv912engsub convert015856 min work
echo "Done. Converted from $START with minimal CPU."
Execution time for a 5-min clip: ~1-2 minutes on modern CPU.
| Problem | Minimal Work Fix |
| :--- | :--- |
| Audio drifts after trim | Use -copyts to preserve timestamps |
| Subtitles flash too fast | Burn with subfps filter |
| Huge output file | Add -fs 100M to limit size |
| Need exact frame at 01:58:56.500 | Use -ss 01:58:56.500 (milliseconds) | Save this as convert_min
English subtitles come in two forms: