If audio suddenly gets fed into one side of a channel after a lapse of frames flush the other factory so that old audio does not remain in the factory causing the sync code to not execute.

(closes issue #12296)
Reported by: jvandal


git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@113296 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 18 insertions, 0 deletions

diff --git a/main/slinfactory.c b/main/slinfactory.c
index 0022c62de..bd5b8de4f 100644
--- a/main/slinfactory.c
+++ b/main/slinfactory.c
@@ -157,3 +157,21 @@ unsigned int ast_slinfactory_available(const struct ast_slinfactory *sf)
 {
 	return sf->size;
 }
+
+void ast_slinfactory_flush(struct ast_slinfactory *sf)
+{
+	struct ast_frame *fr = NULL;
+
+	if (sf->trans) {
+		ast_translator_free_path(sf->trans);
+		sf->trans = NULL;
+	}
+
+	while ((fr = AST_LIST_REMOVE_HEAD(&sf->queue, frame_list)))
+		ast_frfree(fr);
+
+	sf->size = sf->holdlen = 0;
+	sf->offset = sf->hold;
+
+	return;
+}