[FFmpeg-cvslog] doc/muxers: refresh the RCWT muxer's doc to be consistent with the demuxer

[Marth64]

ffmpeg | branch: master | Marth64 <marth64 at proxyid.net> | Tue Apr  2 00:24:57 2024 -0500| [0866b2ba5ea64127d670f9ce35d34bd9c2708cc9] | committer: Stefano Sabatini

doc/muxers: refresh the RCWT muxer's doc to be consistent with the demuxer

Signed-off-by: Marth64 <marth64 at proxyid.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0866b2ba5ea64127d670f9ce35d34bd9c2708cc9
---

 doc/muxers.texi | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/doc/muxers.texi b/doc/muxers.texi
index 39597e000b..d8a1f83309 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -3126,19 +3126,18 @@ ogg files can be safely chained.
 
 @end table
 
- at anchor{rcwt}
+ at anchor{rcwtenc}
 @section rcwt
 
-Raw Captions With Time (RCWT) is a format native to ccextractor, a commonly
-used open source tool for processing 608/708 closed caption (CC) sources.
-It can be used to archive the original, raw CC bitstream and to produce
-a source file for later CC processing or conversion. As a result,
-it also allows for interopability with ccextractor for processing CC data
-extracted via ffmpeg. The format is simple to parse and can be used
-to retain all lines and variants of CC.
+RCWT (Raw Captions With Time) is a format native to ccextractor, a commonly
+used open source tool for processing 608/708 Closed Captions (CC) sources.
+It can be used to archive the original extracted CC bitstream and to produce
+a source file for later processing or conversion. The format allows
+for interoperability between ccextractor and FFmpeg, is simple to parse,
+and can be used to create a backup of the CC presentation.
 
-This muxer implements the specification as of 2024-01-05, which has
-been stable and unchanged for 10 years as of this writing.
+This muxer implements the specification as of March 2024, which has
+been stable and unchanged since April 2014.
 
 This muxer will have some nuances from the way that ccextractor muxes RCWT.
 No compatibility issues when processing the output with ccextractor
@@ -3148,6 +3147,16 @@ and outputs will not be a bit-exact match.
 A free specification of RCWT can be found here:
 @url{https://github.com/CCExtractor/ccextractor/blob/master/docs/BINARY_FILE_FORMAT.TXT}
 
+ at subsection Examples
+
+ at itemize
+ at item
+Extract Closed Captions to RCWT using lavfi:
+ at example
+ffmpeg -f lavfi -i "movie=INPUT.mkv[out+subcc]" -map 0:s:0 -c:s copy -f rcwt CC.rcwt.bin
+ at end example
+ at end itemize
+
 @anchor{segment}
 @section segment, stream_segment, ssegment