[FFmpeg-user] Play video and simultaneously record audio

[Michael Koch]

>> I've written a summary into my book in chapter 3.16 (but chapter
>> numbering may change in future):
>> http://www.astro-electronic.de/FFmpeg_Book.pdf
> Book contains obsolete info about v360 filter, please fix it.

Done. Many new examples for the v360 filter added to chapters 2.48 to 2.55
http://www.astro-electronic.de/FFmpeg_Book.pdf

Michael