| Problem | Likely Cause | Solution |
|---------|--------------|----------|
| No metadata extracted | File not recognized as MP4 | Check Content-Type. Use --detect flag. |
| Duration missing | Corrupt or streamable file without mdhd/mvhd box | Use ffprobe as fallback |
| Text extraction empty | No subtitles or metadata text | Normal; MP4 often has no extractable text |
| ClassNotFoundException in 2.x | Missing parser module | Ensure tika-parsers-standard-package is included |
| Memory issues | Very large MP4 | Increase JVM heap: java -Xmx2g -jar tika-app.jar |
If Tika's MP4 support is insufficient, consider: SS TIKA -2- mp4
If you did not create “SS TIKA -2- mp4” yourself, consider its origin: | Problem | Likely Cause | Solution |
Best practice: Only open MP4 files from trusted sources. If the filename seems random and arrived via email or pop-up, delete it immediately. If Tika's MP4 support is insufficient, consider:
