@item list_devices
If set to @option{true}, print a list of devices and exit.
-Defaults to @option{false}. Alternatively you can use the @code{-sinks}
-option of ffmpeg to list the available output devices.
+Defaults to @option{false}. This option is deprecated, please use the
+@code{-sinks} option of ffmpeg to list the available output devices.
@item list_formats
If set to @option{true}, print a list of supported formats and exit.
@item
List output devices:
@example
-ffmpeg -i test.avi -f decklink -list_devices 1 dummy
+ffmpeg -sinks decklink
@end example
@item
SDL (Simple DirectMedia Layer) output device.
+"sdl2" can be used as alias for "sdl".
+
This output device allows one to show a video stream in an SDL
window. Only one SDL window is allowed per application, so you can
have only one instance of this output device in an application.