Add API to clear custom SDP attributes.

coreapi/call_params.c

@@ -119,6 +119,14 @@ void linphone_call_params_add_custom_sdp_media_attribute(LinphoneCallParams *par
 	params->custom_sdp_media_attributes[type] = sal_custom_sdp_attribute_append(params->custom_sdp_media_attributes[type], attribute_name, attribute_value);
 }
 
+void linphone_call_params_clear_custom_sdp_attributes(LinphoneCallParams *params) {
+	linphone_call_params_set_custom_sdp_attributes(params, NULL);
+}
+
+void linphone_call_params_clear_custom_sdp_media_attributes(LinphoneCallParams *params, LinphoneStreamType type) {
+	linphone_call_params_set_custom_sdp_media_attributes(params, type, NULL);
+}
+
 LinphoneCallParams * linphone_call_params_copy(const LinphoneCallParams *cp){
 	unsigned int i;
 	LinphoneCallParams *ncp=linphone_call_params_new();

coreapi/call_params.h

@@ -426,6 +426,21 @@ LINPHONE_PUBLIC const char * linphone_call_params_get_custom_sdp_attribute(const
 **/
 LINPHONE_PUBLIC const char * linphone_call_params_get_custom_sdp_media_attribute(const LinphoneCallParams *params, LinphoneStreamType type, const char *attribute_name);
 
+/**
+ * Clear the custom SDP attributes related to all the streams in the SDP exchanged within SIP messages during a call.
+ * @param[in] params The #LinphoneCallParams to clear the custom SDP attributes from.
+ * @ingroup media_parameters
+**/
+LINPHONE_PUBLIC void linphone_call_params_clear_custom_sdp_attributes(LinphoneCallParams *params);
+
+/**
+ * Clear the custom SDP attributes related to a specific stream in the SDP exchanged within SIP messages during a call.
+ * @param[in] params The #LinphoneCallParams to clear the custom SDP attributes from.
+ * @param[in] type The type of the stream to clear the custom SDP attributes from.
+ * @ingroup media_parameters
+**/
+LINPHONE_PUBLIC void linphone_call_params_clear_custom_sdp_media_attributes(LinphoneCallParams *params, LinphoneStreamType type);
+
 
 /*******************************************************************************
  * DEPRECATED                                                                  *

tester/call_tester.c

@@ -1234,8 +1234,8 @@ static void call_with_custom_sdp_attributes_cb(LinphoneCore *lc, LinphoneCall *c
 		BC_ASSERT_PTR_NOT_NULL(value);
 		if (value) BC_ASSERT_STRING_EQUAL(value, "sunny");
 		params = linphone_core_create_call_params(lc, call);
-		linphone_call_params_set_custom_sdp_attributes(params, NULL);
-		linphone_call_params_set_custom_sdp_media_attributes(params, LinphoneStreamTypeAudio, NULL);
+		linphone_call_params_clear_custom_sdp_attributes(params);
+		linphone_call_params_clear_custom_sdp_media_attributes(params, LinphoneStreamTypeAudio);
 		linphone_call_params_add_custom_sdp_attribute(params, "working", "no");
 		BC_ASSERT_EQUAL(linphone_core_accept_call_update(lc, call, params), 0, int, "%i");
 		linphone_call_params_destroy(params);
@@ -1276,8 +1276,8 @@ static void call_with_custom_sdp_attributes(void) {
 	vtable->call_state_changed = call_with_custom_sdp_attributes_cb;
 	linphone_core_add_listener(marie->lc, vtable);
 	pauline_params = linphone_core_create_call_params(pauline->lc, call_pauline);
-	linphone_call_params_set_custom_sdp_attributes(pauline_params, NULL);
-	linphone_call_params_set_custom_sdp_media_attributes(pauline_params, LinphoneStreamTypeAudio, NULL);
+	linphone_call_params_clear_custom_sdp_attributes(pauline_params);
+	linphone_call_params_clear_custom_sdp_media_attributes(pauline_params, LinphoneStreamTypeAudio);
 	linphone_call_params_add_custom_sdp_attribute(pauline_params, "weather", "sunny");
 	linphone_core_update_call(pauline->lc, call_pauline, pauline_params);
 	BC_ASSERT_TRUE(wait_for(pauline->lc, marie->lc, &marie->stat.number_of_LinphoneCallUpdatedByRemote, 1));