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doc/outdevs: extend documentation for caca -list* options

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Stefano Sabatini 2012-07-21 10:38:04 +02:00
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doc/outdevs.texi
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@ -57,32 +57,53 @@ Set display driver.
Set dithering algorithm. Dithering is necessary Set dithering algorithm. Dithering is necessary
because the picture being rendered has usually far more colours than because the picture being rendered has usually far more colours than
the available palette. the available palette.
The accepted values are listed with @code{-list_dither algorithms}.
@item antialias @item antialias
Set antialias method. Antialiasing smoothens the rendered Set antialias method. Antialiasing smoothens the rendered
image and avoids the commonly seen staircase effect. image and avoids the commonly seen staircase effect.
The accepted values are listed with @code{-list_dither antialiases}.
@item charset @item charset
Set which characters are going to be used when rendering text. Set which characters are going to be used when rendering text.
The accepted values are listed with @code{-list_dither charsets}.
@item colors @item colors
Set colors to be used when rendering text. Set colors to be used when rendering text.
The accepted values are listed with @code{-list_dither colors}.
@item list_drivers @item list_drivers
List available drivers. If set to @option{true}, print a list of available drivers and exit.
@item list_dither @item list_dither
List available dither options. List available dither options related to the argument.
The argument must be one of @code{algorithms}, @code{antialiases},
@code{charsets}, @code{colors}.
@end table @end table
@subsection Examples @subsection Examples
@itemize
@item
The following command shows the @command{ffmpeg} output is an The following command shows the @command{ffmpeg} output is an
CACA window, forcing its size to 80x25: CACA window, forcing its size to 80x25:
@example @example
ffmpeg -i INPUT -vcodec rawvideo -pix_fmt rgb24 -window_size 80x25 -f caca - ffmpeg -i INPUT -vcodec rawvideo -pix_fmt rgb24 -window_size 80x25 -f caca -
@end example @end example
@item
Show the list of available drivers and exit:
@example
ffmpeg -i INPUT -pix_fmt rgb24 -f caca -list_drivers true -
@end example
@item
Show the list of available dither colors and exit:
@example
ffmpeg -i INPUT -pix_fmt rgb24 -f caca -list_dither colors -
@end example
@end itemize
@section oss @section oss
OSS (Open Sound System) output device. OSS (Open Sound System) output device.