* Concatenare dei file video
#+begin_src 
ffmpeg  -loglevel info -f concat -safe 0  -i join-title.ffmpeg -c copy -map 0   "Whole Title.mkv"
#+end_src
#+begin_src 
> cat join-title.ffmpeg 
file 'Case Closed - 078 - Phantom Thief 1412 (Part 1)   [DarkDream].mkv'
file 'Case Closed - 079 - Phantom Thief 1412 (Part 2)   [DarkDream].mkv'
#+end_src

* HDR to SDR
https://forum.doom9.org/showthread.php?t=175125

ffmpeg.exe -ss 00:01:00.12 -i Sony_4K_HDR_Camp.mp4 -frames 1 -vf
zscale=transfer=linear,tonemap=tonemap=clip:param=1.0:desat=2:peak=0,zscale=transfer=bt709,format=yuv420p
out.mkv
* Resize
-map 0 -map 0:v -vf scale=-1:720 -c:v copy

-map 0 copia tutti gli stream, poi con 0:v "scoppi" lo stream video