The option @code{-codecs} of the ff* tools will display the list of
enabled encoders.
-A description of some of the currently available encoders follows.
+@c man end ENCODERS
+
+@chapter Audio Encoders
+@c man begin AUDIO ENCODERS
-@section Audio Encoders
+A description of some of the currently available audio encoders
+follows.
-@subsection ac3 and ac3_fixed
+@section ac3 and ac3_fixed
AC-3 audio encoders.
default codec for any of the output formats, so it must be specified explicitly
using the option @code{-acodec ac3_fixed} in order to use it.
-@subheading AC-3 Metadata
+@subsection AC-3 Metadata
The AC-3 metadata options are used to set parameters that describe the audio,
but in most cases do not affect the audio encoding itself. Some of the options
@item @uref{http://www.dolby.com/uploadedFiles/zz-_Shared_Assets/English_PDFs/Professional/46_DDEncodingGuidelines.pdf,Dolby Digital Professional Encoding Guidelines}
@end itemize
-@subsubheading Metadata Control Options
+@subsubsection Metadata Control Options
@table @option
@end table
-@subsubheading Downmix Levels
+@subsubsection Downmix Levels
@table @option
@end table
-@subsubheading Audio Production Information
+@subsubsection Audio Production Information
Audio Production Information is optional information describing the mixing
environment. Either none or both of the fields are written to the bitstream.
@end table
-@subsubheading Other Metadata Options
+@subsubsection Other Metadata Options
@table @option
@end table
-@subsubheading Extended Bitstream Information
+@subsection Extended Bitstream Information
The extended bitstream options are part of the Alternate Bit Stream Syntax as
specified in Annex D of the A/52:2010 standard. It is grouped into 2 parts.
If any one parameter in a group is specified, all values in that group will be
and @code{surround_mixlev} options if it supports the Alternate Bit Stream
Syntax.
-@subsubheading Extended Bitstream Information - Part 1
+@subsubsection Extended Bitstream Information - Part 1
@table @option
@end table
-@subsubheading Extended Bitstream Information - Part 2
+@subsubsection Extended Bitstream Information - Part 2
@table @option
@end table
-@subheading Other AC-3 Encoding Options
+@subsection Other AC-3 Encoding Options
@table @option
@end table
-@c man end ENCODERS
+@c man end AUDIO ENCODERS