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f8a45fa1b1
unless it stands for ffmpeg the program or is historic
94 lines
2.3 KiB
Plaintext
94 lines
2.3 KiB
Plaintext
All the numerical options, if not specified otherwise, accept in input
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a string representing a number, which may contain one of the
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International System number postfixes, for example 'K', 'M', 'G'.
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If 'i' is appended after the postfix, powers of 2 are used instead of
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powers of 10. The 'B' postfix multiplies the value for 8, and can be
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appended after another postfix or used alone. This allows using for
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example 'KB', 'MiB', 'G' and 'B' as postfix.
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Options which do not take arguments are boolean options, and set the
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corresponding value to true. They can be set to false by prefixing
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with "no" the option name, for example using "-nofoo" in the
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commandline will set to false the boolean option with name "foo".
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@section Generic options
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These options are shared amongst the ff* tools.
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@table @option
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@item -L
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Show license.
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@item -h, -?, -help, --help
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Show help.
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@item -version
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Show version.
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@item -formats
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Show available formats.
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The fields preceding the format names have the following meanings:
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@table @samp
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@item D
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Decoding available
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@item E
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Encoding available
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@end table
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@item -codecs
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Show available codecs.
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The fields preceding the codec names have the following meanings:
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@table @samp
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@item D
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Decoding available
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@item E
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Encoding available
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@item V/A/S
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Video/audio/subtitle codec
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@item S
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Codec supports slices
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@item D
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Codec supports direct rendering
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@item T
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Codec can handle input truncated at random locations instead of only at frame boundaries
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@end table
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@item -bsfs
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Show available bitstream filters.
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@item -protocols
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Show available protocols.
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@item -filters
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Show available libavfilter filters.
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@item -pix_fmts
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Show available pixel formats.
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@item -loglevel @var{loglevel}
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Set the logging level used by the library.
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@var{loglevel} is a number or a string containing one of the following values:
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@table @samp
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@item quiet
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@item panic
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@item fatal
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@item error
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@item warning
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@item info
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@item verbose
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@item debug
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@end table
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By default the program logs to stderr, if coloring is supported by the
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terminal, colors are used to mark errors and warnings. Log coloring
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can be disabled setting the environment variable
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@env{FFMPEG_FORCE_NOCOLOR} or @env{NO_COLOR}, or can be forced setting
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the environment variable @env{FFMPEG_FORCE_COLOR}.
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The use of the environment variable @env{NO_COLOR} is deprecated and
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will be dropped in a following Libav version.
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@end table
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