doc/platform: Remove false claim about MinGW installer

[ffmpeg] / doc / avtools-common-opts.texi

diff --git a/doc/avtools-common-opts.texi b/doc/avtools-common-opts.texi
index badd35818c141f3b22eb5401238142976dc4a57e..d07505d2e40fb72eb9f946fb8f7dd824d2868f2f 100644 (file)
--- a/doc/avtools-common-opts.texi
+++ b/doc/avtools-common-opts.texi
@@ -51,8 +51,29 @@ These options are shared amongst the av* tools.
 @item -L
 Show license.
 
-@item -h, -?, -help, --help
-Show help.
+@item -h, -?, -help, --help [@var{arg}]
+Show help. An optional parameter may be specified to print help about a specific
+item.
+
+Possible values of @var{arg} are:
+@table @option
+@item decoder=@var{decoder_name}
+Print detailed information about the decoder named @var{decoder_name}. Use the
+@option{-decoders} option to get a list of all decoders.
+
+@item encoder=@var{encoder_name}
+Print detailed information about the encoder named @var{encoder_name}. Use the
+@option{-encoders} option to get a list of all encoders.
+
+@item demuxer=@var{demuxer_name}
+Print detailed information about the demuxer named @var{demuxer_name}. Use the
+@option{-formats} option to get a list of all demuxers and muxers.
+
+@item muxer=@var{muxer_name}
+Print detailed information about the muxer named @var{muxer_name}. Use the
+@option{-formats} option to get a list of all muxers and demuxers.
+
+@end table
 
 @item -version
 Show version.
@@ -69,23 +90,16 @@ Encoding available
 @end table
 
 @item -codecs
-Show available codecs.
+Show all codecs known to libavcodec.
 
-The fields preceding the codec names have the following meanings:
-@table @samp
-@item D
-Decoding available
-@item E
-Encoding available
-@item V/A/S
-Video/audio/subtitle codec
-@item S
-Codec supports slices
-@item D
-Codec supports direct rendering
-@item T
-Codec can handle input truncated at random locations instead of only at frame boundaries
-@end table
+Note that the term 'codec' is used throughout this documentation as a shortcut
+for what is more correctly called a media bitstream format.
+
+@item -decoders
+Show available decoders.
+
+@item -encoders
+Show all available encoders.
 
 @item -bsfs
 Show available bitstream filters.
@@ -156,3 +170,6 @@ use @option{-option 0}/@option{-option 1}.
 
 Note2 old undocumented way of specifying per-stream AVOptions by prepending
 v/a/s to the options name is now obsolete and will be removed soon.
+
+@include avoptions_codec.texi
+@include avoptions_format.texi