X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=m4%2Fgengetopt%2Falsa_write.m4;h=b2c56218dcd6f6a2e41646fafebb883c74b09089;hp=04b4963d3a9fbe6bc342ffa808ae6f33a8a168fa;hb=4d9d588c5df359c3c5f279fbfd4ea51d3a2afc87;hpb=9d75ded33ce6664156acb07e311f51d55970bbea

diff --git a/m4/gengetopt/alsa_write.m4 b/m4/gengetopt/alsa_write.m4
index 04b4963d..b2c56218 100644
--- a/m4/gengetopt/alsa_write.m4
+++ b/m4/gengetopt/alsa_write.m4
@@ -1,6 +1,6 @@
 args "--no-version --no-help"
 
-purpose "Native ALSA output plugin."
+purpose "Native ALSA output plugin"
 
 include(header.m4)
 
@@ -8,11 +8,29 @@ include(header.m4)
 option "device" d
 #~~~~~~~~~~~~~~~~
 "set PCM device"
-string typestr="device"
-default="default"
+string typestr = "device"
+default = "default"
 optional
-details="
-	On systems with dmix, a better choice than the default
-	value might be to use \"plug:swmix\".
+details = "
+	Check for the presence of a /proc/asound/ directory to see if
+	ALSA is present in your kernel. The file /proc/asound/devices
+	contains all devices ALSA knows about.
 "
+
+option "buffer-time" B
+#~~~~~~~~~~~~~~~~~~~~~
+"duration of the ALSA buffer"
+int typestr = "milliseconds"
+default = "170"
+optional
+details = "
+	This is only a hint as ALSA might pick a slightly different
+	time, depending on the sound hardware. The chosen value is
+	shown in debug output as BUFFER_TIME.
+
+	If synchronization between multiple clients is desired,
+	the same buffer time should be configured for all clients.
+"
+
 </qu>
+