Tips & Notes
If there are NO map options for a particular output file, FFmpeg will automatically select a stream based upon the following criteria:
- Video
- The highest resolution
- Audio
- The most channels
- Subtitles
- The first subtitle stream
- Data & Attachments
- Not automatically selected
- :v
- Matches all video streams
- :V
- Only matches video streams which are not attached pictures, video thumbnails or cover arts
- :a
- For audio
- :s
- For subtitles
- :d
- For data
- :t
- For attachments