Merged revisions 110628 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r110628 | file | 2008-03-25 11:37:35 -0300 (Tue, 25 Mar 2008) | 4 lines

Add an option (transmit_silence) which transmits silence during both Record() and DTMF generation. The reason this is an option is that in order to transmit silence we have to setup a translation path. This may not be needed/wanted in all cases.
(closes issue #10058)
Reported by: tracinet

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@110629 65c4cc65-6c06-0410-ace0-fbb531ad65f3

Makefile

@@ -674,6 +674,7 @@ samples: adsi
 		echo ";cache_record_files = yes ; Cache recorded sound files to another directory during recording" ; \
 		echo ";record_cache_dir = /tmp ; Specify cache directory (used in cnjunction with cache_record_files)" ; \
 		echo ";transmit_silence_during_record = yes ; Transmit SLINEAR silence while a channel is being recorded" ; \
+		echo ";transmit_silence = yes ; Transmit SLINEAR silence while a channel is being recorded or DTMF is being generated" ; \
 		echo ";transcode_via_sln = yes ; Build transcode paths via SLINEAR, instead of directly" ; \
 		echo ";runuser = asterisk ; The user to run as" ; \
 		echo ";rungroup = asterisk ; The group to run as" ; \

include/asterisk/options.h

@@ -64,7 +64,7 @@ enum ast_option_flags {
 	AST_OPT_FLAG_OVERRIDE_CONFIG = (1 << 15),
 	/*! Reconnect */
 	AST_OPT_FLAG_RECONNECT = (1 << 16),
-	/*! Transmit Silence during Record() */
+	/*! Transmit Silence during Record() and DTMF Generation */
 	AST_OPT_FLAG_TRANSMIT_SILENCE = (1 << 17),
 	/*! Suppress some warnings */
 	AST_OPT_FLAG_DONT_WARN = (1 << 18),

main/app.c

@@ -244,6 +244,7 @@ int ast_dtmf_stream(struct ast_channel *chan, struct ast_channel *peer, const ch
 {
 	const char *ptr;
 	int res = 0;
+	struct ast_silence_generator *silgen = NULL;
 
 	if (!between)
 		between = 100;
@@ -258,6 +259,10 @@ int ast_dtmf_stream(struct ast_channel *chan, struct ast_channel *peer, const ch
 	if (res < 0)
 		return res;
 
+	if (ast_opt_transmit_silence) {
+		silgen = ast_channel_start_silence_generator(chan);
+	}
+
 	for (ptr = digits; *ptr; ptr++) {
 		if (*ptr == 'w') {
 			/* 'w' -- wait half a second */
@@ -284,6 +289,10 @@ int ast_dtmf_stream(struct ast_channel *chan, struct ast_channel *peer, const ch
 			res = -1;
 	}
 
+	if (silgen) {
+		ast_channel_stop_silence_generator(chan, silgen);
+	}
+
 	return res;
 }
 

main/asterisk.c

@@ -2633,8 +2633,8 @@ static void ast_readconfig(void)
 		/* Build transcode paths via SLINEAR, instead of directly */
 		} else if (!strcasecmp(v->name, "transcode_via_sln")) {
 			ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TRANSCODE_VIA_SLIN);
-		/* Transmit SLINEAR silence while a channel is being recorded */
-		} else if (!strcasecmp(v->name, "transmit_silence_during_record")) {
+		/* Transmit SLINEAR silence while a channel is being recorded or DTMF is being generated on a channel */
+		} else if (!strcasecmp(v->name, "transmit_silence_during_record") || !strcasecmp(v->name, "transmit_silence")) {
 			ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TRANSMIT_SILENCE);
 		/* Enable internal timing */
 		} else if (!strcasecmp(v->name, "internal_timing")) {