Tips & Notes

*Automatic Stream Selection

If there are NO map options for a particular output file, FFmpeg will automatically select a stream based upon the following criteria:
The highest resolution
The most channels
The first subtitle stream
Data & Attachments
Not automatically selected

*Stream Specifier Types

Matches all video streams
Only matches video streams which are not attached pictures, video thumbnails or cover arts
For audio
For subtitles
For data
For attachments