audiod: Document new regular expression syntax.

[paraslash.git] / web / manual.m4

diff --git a/web/manual.m4 b/web/manual.m4
index 46a2cd62f58e4c25eada652b10a855a60be60f1e..2af59f5376b4ecfadc6ce12a38b5781698b276ce 100644 (file)
--- a/web/manual.m4
+++ b/web/manual.m4
@@ -415,9 +415,9 @@ as bar@client_host
 
 
 We will also have to tell para_audiod that it should receive the
-audio stream from server_host:
+audio stream from server_host via http:
 
-       para_audiod -l info -r 'mp3:http -i server_host'
+       para_audiod -l info -r '.:http -i server_host'
 
 You should now be able to listen to the audio stream once para_server
 starts streaming. To activate streaming, execute
@@ -1431,8 +1431,7 @@ from being interpreted by para_recv.
 -> Create a minimal config for para_audiod for HTTP streams:
 
        c=$HOME/.paraslash/audiod.conf.min; s=server.foo.com
-       formats="mp3 ogg aac wma" # remove what you do not have
-       for f in $formats; do echo receiver \"$f:http -i $s\"; done > $c
+       echo receiver \".:http -i $s\" > $c
        para_audiod --config $c
 
 -------
@@ -1470,11 +1469,23 @@ the driving application (para_audiod or para_filter). Example:
        para_filter -f 'mp3dec --ignore-crc' -f 'compress --damp 1'
 
 For para_audiod, each audio format has its own set of filters. The
-name of the audio format for which the filter should be applied is
-used as the prefix for the filter option. Example:
+name of the audio format for which the filter should be applied can
+be used as the prefix for the filter option. Example:
 
        para_audiod -f 'mp3:prebuffer --duration 300'
 
+The "mp3" prefix above is actually interpreted as a POSIX extended
+regular expression. Therefore
+
+       para_audiod -f '.:prebuffer --duration 300'
+
+activates the prebuffer filter for all supported audio formats (because
+"." matches all audio formats) while
+
+       para_audiod -f 'wma|ogg:prebuffer --duration 300'
+
+activates it only for wma and ogg streams.
+
 Decoders
 ~~~~~~~~