avcodec/v4l2_m2m: Use consistent logging context

[ffmpeg] / doc / decoders.texi

diff --git a/doc/decoders.texi b/doc/decoders.texi
index 31e96fbc8def95025ade925d3d614b22c369c547..f18226b3504a891470a2a215c2004e98ae59ff31 100644 (file)
--- a/doc/decoders.texi
+++ b/doc/decoders.texi
@@ -47,6 +47,39 @@ top-field-first is assumed
 
 @end table
 
+@section libdav1d
+
+dav1d AV1 decoder.
+
+libdav1d allows libavcodec to decode the AOMedia Video 1 (AV1) codec.
+Requires the presence of the libdav1d headers and library during configuration.
+You need to explicitly configure the build with @code{--enable-libdav1d}.
+
+@subsection Options
+
+The following options are supported by the libdav1d wrapper.
+
+@table @option
+
+@item framethreads
+Set amount of frame threads to use during decoding. The default value is 0 (autodetect).
+
+@item tilethreads
+Set amount of tile threads to use during decoding. The default value is 0 (autodetect).
+
+@item filmgrain
+Apply film grain to the decoded video if present in the bitstream. Defaults to the
+internal default of the library.
+
+@item oppoint
+Select an operating point of a scalable AV1 bitstream (0 - 31). Defaults to the
+internal default of the library.
+
+@item alllayers
+Output all spatial layers of a scalable AV1 bitstream. The default value is false.
+
+@end table
+
 @section libdavs2
 
 AVS2-P2/IEEE1857.4 video decoder wrapper.
@@ -194,6 +227,31 @@ without this library.
 @chapter Subtitles Decoders
 @c man begin SUBTILES DECODERS
 
+@section libaribb24
+
+ARIB STD-B24 caption decoder.
+
+Implements profiles A and C of the ARIB STD-B24 standard.
+
+@subsection libaribb24 Decoder Options
+
+@table @option
+
+@item -aribb24-base-path @var{path}
+Sets the base path for the libaribb24 library. This is utilized for reading of
+configuration files (for custom unicode conversions), and for dumping of
+non-text symbols as images under that location.
+
+Unset by default.
+
+@item -aribb24-skip-ruby-text @var{boolean}
+Tells the decoder wrapper to skip text blocks that contain half-height ruby
+text.
+
+Enabled by default.
+
+@end table
+
 @section dvbsub
 
 @subsection Options
@@ -261,12 +319,18 @@ Default value is *.
 @item txt_chop_top
 Discards the top teletext line. Default value is 1.
 @item txt_format
-Specifies the format of the decoded subtitles. The teletext decoder is capable
-of decoding the teletext pages to bitmaps or to simple text, you should use
-"bitmap" for teletext pages, because certain graphics and colors cannot be
-expressed in simple text. You might use "text" for teletext based subtitles if
-your application can handle simple text based subtitles. Default value is
-bitmap.
+Specifies the format of the decoded subtitles.
+@table @option
+@item bitmap
+The default format, you should use this for teletext pages, because certain
+graphics and colors cannot be expressed in simple text or even ASS.
+@item text
+Simple text based output without formatting.
+@item ass
+Formatted ASS output, subtitle pages and teletext pages are returned in
+different styles, subtitle pages are stripped down to text, but an effort is
+made to keep the text alignment and the formatting.
+@end table
 @item txt_left
 X offset of generated bitmaps, default is 0.
 @item txt_top