app_rpt: add "archiveformat" to specify the audio recording format

This change means that one will be now be able to specify an audio
recording format other than "wav49".

Resolves #485

apps/app_rpt.c

@@ -2971,7 +2971,12 @@ static inline void log_keyed(struct rpt *myrpt)
 		time(&myt);
 		strftime(mydate, sizeof(mydate) - 1, "%Y%m%d%H%M%S", localtime(&myt));
 		sprintf(myfname, "%s/%s/%s", myrpt->p.archivedir, myrpt->name, mydate);
-		myrpt->monstream = ast_writefile(myfname, "wav49", "app_rpt Air Archive", O_CREAT | O_APPEND, 0, 0644);
+		myrpt->monstream = ast_writefile(myfname,
+										 myrpt->p.archiveformat ? myrpt->p.archiveformat : "wav49",
+										 "app_rpt Air Archive",
+										 O_CREAT | O_APPEND,
+										 0,
+										 0644);
 		if (myrpt->p.monminblocks) {
 			blocksleft = diskavail(myrpt);
 			if (blocksleft >= myrpt->p.monminblocks) {
@@ -3801,9 +3806,12 @@ static inline int rxchannel_read(struct rpt *myrpt, const int lasttx)
 					if (myrpt->p.monminblocks) {
 						blocksleft = diskavail(myrpt);
 						if (blocksleft >= myrpt->p.monminblocks) {
-							myrpt->monstream =
-								ast_writefile(myfname, "wav49", "app_rpt Air Archive", O_CREAT | O_APPEND, 0,
-											  0644);
+							myrpt->monstream = ast_writefile(myfname,
+															 myrpt->p.archiveformat ? myrpt->p.archiveformat : "wav49",
+															 "app_rpt Air Archive",
+															 O_CREAT | O_APPEND,
+															 0,
+															 0644);
 						}
 					}
 				}
@@ -7085,12 +7093,16 @@ static int rpt_exec(struct ast_channel *chan, const char *data)
 		long blocksleft;
 
 		mkdir(myrpt->p.archivedir, 0700);
-		sprintf(mycmd, "%s/%s", myrpt->p.archivedir, myrpt->name);
+		snprintf(mycmd, sizeof(mycmd), "%s/%s", myrpt->p.archivedir, myrpt->name);
 		mkdir(mycmd, 0775);
 		time(&myt);
-		strftime(mydate, sizeof(mydate) - 1, "%Y%m%d%H%M%S", localtime(&myt));
-		sprintf(mycmd, "mixmonitor start %s %s/%s/%s.wav49 a", ast_channel_name(chan), myrpt->p.archivedir, myrpt->name,
-				mydate);
+		strftime(mydate, sizeof(mydate), "%Y%m%d%H%M%S", localtime(&myt));
+		snprintf(mycmd, sizeof(mycmd), "mixmonitor start %s %s/%s/%s.%s a",
+				 ast_channel_name(chan),
+				 myrpt->p.archivedir,
+				 myrpt->name,
+				 myrpt->p.archiveformat ? myrpt->p.archiveformat : "wav49",
+				 mydate);
 		if (myrpt->p.monminblocks) {
 			blocksleft = diskavail(myrpt);
 			if (myrpt->p.remotetimeout) {
@@ -7100,7 +7112,7 @@ static int rpt_exec(struct ast_channel *chan, const char *data)
 				ast_cli_command(nullfd, mycmd);
 		} else
 			ast_cli_command(nullfd, mycmd);
-		sprintf(mycmd, "CONNECT,%s", b1);
+		snprintf(mycmd, sizeof(mycmd), "CONNECT,%s", b1);
 		donodelog(myrpt, mycmd);
 		rpt_update_links(myrpt);
 		doconpgm(myrpt, b1);

apps/app_rpt/app_rpt.h

@@ -644,6 +644,7 @@ struct rpt {
 		struct rpt_xlat inxlat;
 		struct rpt_xlat outxlat;
 		const char *archivedir;
+		const char *archiveformat;
 		int authlevel;
 		const char *csstanzaname;
 		const char *skedstanzaname;

apps/app_rpt/rpt_config.c

@@ -928,6 +928,7 @@ void load_rpt_vars(int n, int init)
 
 	RPT_CONFIG_VAR(patchconnect, "patchconnect");
 	RPT_CONFIG_VAR(archivedir, "archivedir");
+	RPT_CONFIG_VAR(archiveformat, "archiveformat");
 	RPT_CONFIG_VAR_INT(authlevel, "authlevel");
 
 	val = ast_variable_retrieve(cfg, cat, "parrot");

configs/rpt/rpt.conf

@@ -184,9 +184,36 @@ parrottime = 1000                   ; Set the amount of time in milliseconds
 									; module app_gps.so will need to be enabled
 
 ; *** Status Reporting ***
-; Uncomment the statpost line to report the status of your node to stats.allstarlink.org
+;
+; Uncomment the following "statpost_url" line to enable status reporting
+; of all of your nodes to "stats.allstarlink.org".  To enable reporting
+; of a single node then add the line (without the leading ";") to the
+; per-node stanza(s).
+;
 ;statpost_url = http://stats.allstarlink.org/uhandler ; Status updates
 
+; *** Audio Archiving ***
+;
+; The following "archivedir" line can be used to enable a simple log and
+; audio recorder of the activity on a node.  When enabled, a series of
+; recordings, one for each active COR on the node.  The file(s) will be
+; named with the date and time down to the 1/100th of a second.  This
+; logging can be useful in debugging, policing, or other creative things.
+;
+; The "archiveformat" line can be used to specify the format of the audio
+; recordings.  By default, the format will be "wav49" (GSM in a WAV|wav49
+; container). Other options you may consider include "wav" (SLIN in a wav
+; container), and "gsm" (GSM in straight gsm format).
+;
+; The "archivedir" and "archiveformat" lines can be enabled here (affecting
+; all nodes) or in the per-node stanzas (for recording of individual nodes).
+;
+; Note: enabling these recordings can adversly impact the CPU utilization
+;       on the device and consume large amounts of the available storage.
+;
+;archivedir = /var/spool/asterisk/monitor ; top-level recording directory
+;archiveformat = wav49                    ; audio format (default = wav49)
+
 ;;; End of node-main template
 
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