- --input / -i (str) : input file or url
- --realtime / -r (bool) : on / off realtime (default on)
- --color / -c (rgb/gray) : set color space (default rgb)
- --decoder-threads / -d : threads per decoder (default 4)
- --painter-threads / -p : threads per painter (default 8)
libavcodec
libavformat
libavutil
libswscale
libswresample