From 662c9e69fa021887146b887e06cd99cac568701d Mon Sep 17 00:00:00 2001
From: Sean Bright <sean.bright@gmail.com>
Date: Tue, 14 Feb 2017 09:12:31 -0500
Subject: [PATCH] app_record: Add option to prevent silence from being
 truncated

When using Record() with the silence detection feature, the stream is
written out to the given file. However, if only 'silence' is detected,
this file is then truncated to the first second of the recording.

This patch adds the 'u' option to Record() to override that behavior.

ASTERISK-18286 #close
Reported by: var
Patches:
	app_record-1.8.7.1.diff (license #6184) patch uploaded by var

Change-Id: Ia1cd163483235efe2db05e52f39054288553b957
---
 CHANGES           |  9 +++++++++
 apps/app_record.c | 13 +++++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/CHANGES b/CHANGES
index 1671d3635d..79a1840b09 100644
--- a/CHANGES
+++ b/CHANGES
@@ -79,6 +79,15 @@ app_queue
  * Add 'QueueUpdate' application which can be used to track outbound calls
    using app_queue.
 
+------------------------------------------------------------------------------
+--- Functionality changes from Asterisk 14.3.0 to Asterisk 14.4.0 ------------
+------------------------------------------------------------------------------
+
+app_record
+------------------
+ * Added new 'u' option to Record() application which prevents Asterisk from
+   truncating silence from the end of recorded files.
+
 ------------------------------------------------------------------------------
 --- Functionality changes from Asterisk 14.2.0 to Asterisk 14.3.0 ------------
 ------------------------------------------------------------------------------
diff --git a/apps/app_record.c b/apps/app_record.c
index ede50be264..0b85ff8a69 100644
--- a/apps/app_record.c
+++ b/apps/app_record.c
@@ -79,6 +79,9 @@
 					<option name="t">
 						<para>use alternate '*' terminator key (DTMF) instead of default '#'</para>
 					</option>
+					<option name="u">
+						<para>Don't truncate recorded silence.</para>
+					</option>
 					<option name="x">
 						<para>Ignore all terminator keys (DTMF) and keep recording until hangup.</para>
 					</option>
@@ -131,6 +134,7 @@ enum {
 	FLAG_HAS_PERCENT = (1 << 7),
 	OPTION_ANY_TERMINATE = (1 << 8),
 	OPTION_OPERATOR_EXIT = (1 << 9),
+	OPTION_NO_TRUNCATE = (1 << 10),
 };
 
 AST_APP_OPTIONS(app_opts,{
@@ -141,6 +145,7 @@ AST_APP_OPTIONS(app_opts,{
 	AST_APP_OPTION('q', OPTION_QUIET),
 	AST_APP_OPTION('s', OPTION_SKIP),
 	AST_APP_OPTION('t', OPTION_STAR_TERMINATE),
+	AST_APP_OPTION('u', OPTION_NO_TRUNCATE),
 	AST_APP_OPTION('y', OPTION_ANY_TERMINATE),
 	AST_APP_OPTION('x', OPTION_IGNORE_TERMINATE),
 });
@@ -192,6 +197,7 @@ static int record_exec(struct ast_channel *chan, const char *data)
 	int dspsilence = 0;
 	int silence = 0;		/* amount of silence to allow */
 	int gotsilence = 0;		/* did we timeout for silence? */
+	int truncate_silence = 1;	/* truncate on complete silence recording */
 	int maxduration = 0;		/* max duration of recording in milliseconds */
 	int gottimeout = 0;		/* did we timeout for maxduration exceeded? */
 	int terminator = '#';
@@ -243,7 +249,10 @@ static int record_exec(struct ast_channel *chan, const char *data)
 			ast_log(LOG_WARNING, "'%s' is not a valid silence duration\n", args.silence);
 		}
 	}
-	
+
+	if (ast_test_flag(&flags, OPTION_NO_TRUNCATE))
+		truncate_silence = 0;
+
 	if (args.maxduration) {
 		if ((sscanf(args.maxduration, "%30d", &i) == 1) && (i > -1))
 			/* Convert duration to milliseconds */
@@ -443,7 +452,7 @@ static int record_exec(struct ast_channel *chan, const char *data)
 		}
 	}
 
-	if (gotsilence) {
+	if (gotsilence && truncate_silence) {
 		ast_stream_rewind(s, silence - 1000);
 		ast_truncstream(s);
 	} else if (!gottimeout && f) {