Audio output via stdout and UDP

CHANGES.md

@@ -33,6 +33,10 @@
     >
     > Add:     "FX25TX 1" (or 16 or 32 or 64)
 
+- stdout is now supported for audio output via piping to other utilities.  To support this, all non-audio output must be redirected to stderr using the new -O option on the command line.
+
+- udp audio output is also now supported.  Use udp:destination:port style output device in the configuration file.
+
 
 
 ### Bugs Fixed: ###

conf/generic.conf

@@ -132,10 +132,15 @@
 %W%# "stdin" is not an audio device.  Don't use this unless you
 %W%# understand what this means.  Read the User Guide.
 %W%# You can also specify "UDP:" and an optional port for input.
-%W%# Something different must be specified for output.
+%W%# "-" or "stdout" can be used to pipe audio out to another application.
+%W%# The -O option must be specified on the command line to support this.
+%W%# For UDP output, specify the destination IP address/hostname and port number
+%W%# using "UDP:destination:port" syntax
 %W%
 %W%# ADEVICE stdin 0
 %W%# ADEVICE UDP:7355 0
+%W%# ADEVICE UDP:7355 UDP:localhost:7356
+%W%# ADEVICE stdin stdout
 %W%
 %W%# The position in the list can change when devices (e.g. USB) are added and removed.
 %W%# You can also specify devices by using part of the name.
@@ -158,10 +163,15 @@
 %L%# "stdin" is not an audio device.  Don't use this unless you
 %L%# understand what this means.  Read the User Guide.
 %L%# You can also specify "UDP:" and an optional port for input.
-%L%# Something different must be specified for output.
+%L%# "-" or "stdout" can be used to pipe audio out to another application.
+%L%# The -O option must be specified on the command line to support this.
+%L%# For UDP output, specify the destination IP address/hostname and port number
+%L%# using "UDP:destination:port" syntax
 %L%
 %L%# ADEVICE stdin plughw:1,0
 %L%# ADEVICE UDP:7355 default
+%L%# ADEVICE UDP:7355 UDP:localhost:7356
+%L%# ADEVICE stdin stdout
 %L%
 %R% ---------- Mac ----------
 %R%
@@ -183,9 +193,14 @@
 %M%# "stdin" is not an audio device.  Don't use this unless you
 %M%# understand what this means.  Read the User Guide.
 %M%# You can also specify "UDP:" and an optional port for input.
-%M%# Something different must be specified for output.
+%M%# "-" or "stdout" can be used to pipe audio out to another application.
+%M%# The -O option must be specified on the command line to support this.
+%M%# For UDP output, specify the destination IP address/hostname and port number
+%M%# using "UDP:destination:port" syntax
 %M%
 %M%# ADEVICE UDP:7355 default
+%M%# ADEVICE UDP:7355 UDP:localhost:7356
+%M%# ADEVICE stdin stdout
 %M%#
 %C%
 %C%#
@@ -607,4 +622,4 @@
 %C%#TTERR  NO_CALL          SPEECH  No call or object name.
 %C%#TTERR  SATSQ            SPEECH  Satellite square must be 4 digits.
 %C%#TTERR  SUFFIX_NO_CALL   SPEECH  Send full call before using suffix.
-%C%
+%C%

man/direwolf.1

@@ -155,6 +155,9 @@ x = Silence FX.25 information.
 .BI "-t " "n"
 Text colors.  0=disabled. 1=default.  2,3,4,... alternatives.  Use 9 to test compatibility with your terminal.
 
+.TP
+.BI "-O "
+Redirects all printed output to stderr so stdout can be used as audio device.
 
 .TP
 .B "-p " 

src/aprs_tt.c

@@ -2078,6 +2078,7 @@ static void check_result (void)
 
 int main (int argc, char *argv[])
 {
+	text_color_init (1, 0);
 	aprs_tt_init (NULL, 0);
 
 	error_count = 0;

src/atest.c

@@ -217,7 +217,7 @@ int main (int argc, char *argv[])
 	}
 #endif
 
-	text_color_init(1);
+	text_color_init(1, 0);
 	text_color_set(DW_COLOR_INFO);
 
 /*