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-rw-r--r--main/format_cap.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/main/format_cap.c b/main/format_cap.c
index 65e469fc1..364c924bf 100644
--- a/main/format_cap.c
+++ b/main/format_cap.c
@@ -700,3 +700,18 @@ const char *ast_format_cap_get_names(struct ast_format_cap *cap, struct ast_str
return ast_str_buffer(*buf);
}
+
+int ast_format_cap_empty(struct ast_format_cap *cap)
+{
+ int count = ast_format_cap_count(cap);
+
+ if (count > 1) {
+ return 0;
+ }
+
+ if (count == 0 || AST_VECTOR_GET(&cap->preference_order, 0)->format == ast_format_none) {
+ return 1;
+ }
+
+ return 0;
+}