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| author | Moritz Barsnick <barsnick@gmx.net> | 2016-12-30 18:08:14 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-12-31 17:20:06 +0100 |
| commit | 5dbce5120b4e05dd6d784e7ed9921c1f276acea3 (patch) | |
| tree | 1aabba20306a0329a571e5831c5767db02b761bc | |
| parent | 6c442e1584599471d1d43df2880feb9bda215163 (diff) | |
| download | ffmpeg-5dbce5120b4e05dd6d784e7ed9921c1f276acea3.tar.gz | |
doc: document cutoff option to ac3 and adjust the option's global documentation
cutoff is implemented as an option global to lavc, but supported only
by a few encoders. This fact is now reflected in its documentation. ac3's
support of this option is added for completeness.
Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | doc/codecs.texi | 3 | ||||
| -rw-r--r-- | doc/encoders.texi | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/doc/codecs.texi b/doc/codecs.texi index 9a3a56d7dc..6093605d20 100644 --- a/doc/codecs.texi +++ b/doc/codecs.texi @@ -138,7 +138,8 @@ Set audio sampling rate (in Hz). Set number of audio channels. @item cutoff @var{integer} (@emph{encoding,audio}) -Set cutoff bandwidth. +Set cutoff bandwidth. (Supported only by selected encoders, see +their respective documentation sections.) @item frame_size @var{integer} (@emph{encoding,audio}) Set audio frame size. diff --git a/doc/encoders.texi b/doc/encoders.texi index 5e311cb38a..8137465c76 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -488,6 +488,10 @@ is an optional AC-3 feature that increases quality by selectively encoding the left/right channels as mid/side. This option is enabled by default, and it is highly recommended that it be left as enabled except for testing purposes. +@item cutoff @var{frequency} +Set lowpass cutoff frequency. If unspecified, the encoder selects a default +determined by various other encoding parameters. + @end table @subsection Floating-Point-Only AC-3 Encoding Options |