Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
the parameter is the maximum samples per second by which the audio is changed.
-async 1 is a special case where only the start of the audio stream is corrected
without any later correction.
-This option has been deprecated. Use the @code{asyncts} audio filter instead.
+This option has been deprecated. Use the @code{aresample} audio filter instead.
@item -copyts
Do not process input timestamps, but keep their values without trying