From: Timothy Gu <[email protected]>
Signed-off-by: Vittorio Giovara <[email protected]>
---
doc/encoders.texi | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/doc/encoders.texi b/doc/encoders.texi
index 24692b7..b265fb8 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -441,6 +441,39 @@ Same as 3, but with extra processing enabled -
corresponding to the wavpack
@end table
+@section libmp3lame
+
+LAME (Lame Ain't an MP3 Encoder) MP3 encoder wrapper
+
+Requires the presence of the libmp3lame headers and library during
+configuration. You need to explicitly configure the build with
+@code{--enable-libmp3lame}.
+
+@subsection Option Mapping
+
+The following options are supported by the libmp3lame wrapper,
+the LAME-equivalent options follow the Libav ones.
+
+@multitable @columnfractions .2 .2
+@item Libav @tab LAME
+@item b @tab b
+Set bitrate expressed in bits/s for CBR or ABR. LAME @code{bitrate} is
+expressed in kilobits/s.
+@item q @tab V
+Quality setting for VBR.
+@item compression_level @tab q
+Algorithm quality. Valid options are integers from 0-9.
+@item reservoir @tab N.A.
+Enable use of bit reservoir. LAME has this enabled by default.
+@item joint_stereo @tab -m j
+Enables the the encoder to use (on a frame by frame basis) either L/R
+stereo or mid/side stereo. Default value is 1.
+@item abr @tab --abr
+Enable the encoder to use ABR when set to 1. The @command{lame}
+@option{--abr} sets the target bitrate, while this options only
+tells Libav to use ABR, relying on @option{b} to set bitrate.
+@end multitable
+
@c man end AUDIO ENCODERS
@chapter Video Encoders
--
1.8.3.4 (Apple Git-47)
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