-L
Show license.

-h, -?, -help, --help
Show help.

-version
Show version.

-formats
Show available formats.

The fields preceding the format names have the following meanings:

D
     Decoding available

E
     Encoding available

-codecs
Show available codecs.

The fields preceding the codec names have the following meanings:

D
     Decoding available

E
     Encoding available

V/A/S
     Video/audio/subtitle codec

S
     Codec supports slices

D
     Codec supports direct rendering

T
     Codec can handle input truncated at random locations instead of only at frame boundaries

-bsfs
Show available bitstream filters.

-protocols
Show available protocols.

-filters
Show available libavfilter filters.

-pix_fmts
Show available pixel formats.

-loglevel LOGLEVEL
Set the logging level used by the library. LOGLEVEL is a number or a string containing one of the following values:

quiet

panic

fatal

error

warning

info

verbose

debug