X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=doc%2Fdecoders.texi;h=1a2087d397c4a64ef813b6a5cb1f2acdeb6ec931;hb=b8accd1175d20ab308de69dbd06bda06a02183e3;hp=31e96fbc8def95025ade925d3d614b22c369c547;hpb=2d62e06ff6a9f3dbd78136c1dc4a315a727c6f00;p=ffmpeg

diff --git a/doc/decoders.texi b/doc/decoders.texi
index 31e96fbc8de..1a2087d397c 100644
--- a/doc/decoders.texi
+++ b/doc/decoders.texi
@@ -25,6 +25,19 @@ enabled decoders.
 A description of some of the currently available video decoders
 follows.
 
+@section av1
+
+AOMedia Video 1 (AV1) decoder.
+
+@subsection Options
+
+@table @option
+
+@item operating_point
+Select an operating point of a scalable AV1 bitstream (0 - 31). Default is 0.
+
+@end table
+
 @section rawvideo
 
 Raw video decoder.
@@ -47,6 +60,39 @@ 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.
@@ -55,6 +101,27 @@ This decoder allows libavcodec to decode AVS2 streams with davs2 library.
 
 @c man end VIDEO DECODERS
 
+@section libuavs3d
+
+AVS3-P2/IEEE1857.10 video decoder.
+
+libuavs3d allows libavcodec to decode AVS3 streams.
+Requires the presence of the libuavs3d headers and library during configuration.
+You need to explicitly configure the build with @code{--enable-libuavs3d}.
+
+@subsection Options
+
+The following option is supported by the libuavs3d wrapper.
+
+@table @option
+
+@item frame_threads
+Set amount of frame threads to use during decoding. The default value is 0 (autodetect).
+
+@end table
+
+@c man end VIDEO DECODERS
+
 @chapter Audio Decoders
 @c man begin AUDIO DECODERS
 
@@ -74,7 +141,7 @@ the undocumented RealAudio 3 (a.k.a. dnet).
 
 @item -drc_scale @var{value}
 Dynamic Range Scale Factor. The factor to apply to dynamic range values
-from the AC-3 stream. This factor is applied exponentially.
+from the AC-3 stream. This factor is applied exponentially. The default value is 1.
 There are 3 notable scale factor ranges:
 @table @option
 @item drc_scale == 0
@@ -194,6 +261,31 @@ 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
@@ -201,6 +293,8 @@ without this library.
 @table @option
 @item compute_clut
 @table @option
+@item -2
+Compute clut once if no matching CLUT is in the stream.
 @item -1
 Compute clut if no matching CLUT is in the stream.
 @item 0
@@ -229,7 +323,7 @@ palette is stored in the IFO file, and therefore not available when reading
 from dumped VOB files.
 
 The format for this option is a string containing 16 24-bits hexadecimal
-numbers (without 0x prefix) separated by comas, for example @code{0d00ee,
+numbers (without 0x prefix) separated by commas, for example @code{0d00ee,
 ee450d, 101010, eaeaea, 0ce60b, ec14ed, ebff0b, 0d617a, 7b7b7b, d1d1d1,
 7b2a0e, 0d950c, 0f007b, cf0dec, cfa80c, 7c127b}.
 
@@ -258,15 +352,26 @@ List of teletext page numbers to decode. Pages that do not match the specified
 list are dropped. You may use the special @code{*} string to match all pages,
 or @code{subtitle} to match all subtitle pages.
 Default value is *.
+@item txt_default_region
+Set default character set used for decoding, a value between 0 and 87 (see
+ETS 300 706, Section 15, Table 32). Default value is -1, which does not
+override the libzvbi default. This option is needed for some legacy level 1.0
+transmissions which cannot signal the proper charset.
 @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