- log=“process.log”
- > “\(log" for f in source/*.mkv; do base=\)(basename “\(f" .mkv) echo "\)(date) – Starting \(base" | tee -a "\)log” if mkvoptimizer –input “\(f" –output "output/\){base}.optimized.mkv” –reorder –remove-unused –compress-subtitles –strip-metadata 2>>”\(log"; then echo "\)(date) – Success: \(base" | tee -a "\)log” else echo “\((date) – Failed: \)base” | tee -a “$log” fi done
MKV Optimizer vs. Other Tools: A Practical Comparison
5. Parallel processing (optional)
Use GNU Parallel or xargs to process multiple files at once if CPU is available:
Code
ls source/.mkv | parallel -j4 mkvoptimizer –input {} –output output/{/.}.optimized.mkv –reorder –remove-unused –compress-subtitles –strip-metadata
Adjust -j4 to number of concurrent jobs.
6. Verify outputs
- Spot-check 5–10 files for playback, subtitle sync, and metadata.
- Compare original vs optimized file sizes.
- If issues occur, tweak flags (e.g., skip subtitle compression or change codec options).
7. Replace originals (optional, after verification)
Move originals to backup and replace:
Code
mv source/.mkv backup/ mv output/*.optimized.mkv source/
Common troubleshooting
- Audio/video desync: try disabling re-muxing or use a different muxer flag.
- Missing subtitles: ensure subtitle tracks weren’t marked unused; use explicit include flags.
- Increased file size: verify compression settings; some codecs/containers add overhead.
Quick checklist before running batch
- Tested on a representative file
- Backups created
- Logging enabled
- Parallel jobs tuned to CPU/RAM
- Verification plan
If you tell me which MKV Optimizer command-line flags your tool supports (or paste a sample command), I can tailor the script and flags precisely.
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