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author | Timothy Gu <timothygu99@gmail.com> | 2013-08-03 16:51:26 -0700 |
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committer | Timothy Gu <timothygu99@gmail.com> | 2013-09-22 14:59:41 -0700 |
commit | 4ad0330b3dd185708656b85b1740e7b066f002ca (patch) | |
tree | ac273a9efb6e409abe0151aa17048eedda017aa7 | |
parent | 9fde820d8e3cd6b9af5668b19047a465b108b298 (diff) | |
download | ffmpeg-4ad0330b3dd185708656b85b1740e7b066f002ca.tar.gz |
doc/encoders: reformat libmp3lame doc
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 40b8350b57adaa9aaf6731bac5130d4fec1639c3)
Conflicts:
doc/encoders.texi
-rw-r--r-- | doc/encoders.texi | 48 |
1 files changed, 29 insertions, 19 deletions
diff --git a/doc/encoders.texi b/doc/encoders.texi index 1f06dee2ac..f2ff004c6b 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -420,26 +420,36 @@ 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 +@subsection Options + +The following options are supported by the libmp3lame wrapper. The +@command{lame}-equivalent of the options are listed in parentheses. + +@table @option +@item b (@emph{-b}) +Set bitrate expressed in bits/s for CBR. LAME @code{bitrate} is +expressed in kilobits/s. -The following options are supported by the libmp3lame wrapper, -the LAME-equivalent options follow the FFmpeg ones. - -@multitable @columnfractions .2 .2 -@item FFmpeg @tab LAME -@item b @tab b -FFmpeg @code{b} option is expressed in bits/s, lame @code{bitrate} -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. -@end multitable +@item q (@emph{-V}) +Set constant quality setting for VBR. This option is valid only +using the @command{ffmpeg} command-line tool. For library interface +users, use @option{global_quality}. + +@item compression_level (@emph{-q}) +Set algorithm quality. Valid arguments are integers in the 0-9 range, +with 0 meaning highest quality but slowest, and 9 meaning fastest +while producing the worst quality. + +@item reservoir +Enable use of bit reservoir when set to 1. Default value is 1. LAME +has this enabled by default, but can be overriden by use +@option{--nores} option. + +@item joint_stereo (@emph{-m j}) +Enable the encoder to use (on a frame by frame basis) either L/R +stereo or mid/side stereo. Default value is 1. + +@end table @section libopencore-amrnb |