From 5152ea5962cd83deeec3f0fa885cbff1c6886578 Mon Sep 17 00:00:00 2001
From: Philipp Hancke <philipp.hancke@googlemail.com>
Date: Wed, 9 Sep 2020 14:58:32 +0200
Subject: [PATCH] objc: add rollback type to RTCSdpType
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BUG=webrtc:11796

Change-Id: I98b742d9e154c9521ae7e7548b32d75bd3f584d0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/183761
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Cr-Commit-Position: refs/heads/master@{#32063}
---
 examples/objc/AppRTCMobile/ARDSignalingMessage.m     | 1 +
 sdk/objc/api/peerconnection/RTCSessionDescription.h  | 1 +
 sdk/objc/api/peerconnection/RTCSessionDescription.mm | 4 ++++
 3 files changed, 6 insertions(+)

diff --git a/examples/objc/AppRTCMobile/ARDSignalingMessage.m b/examples/objc/AppRTCMobile/ARDSignalingMessage.m
index 57af826935..e1e897921d 100644
--- a/examples/objc/AppRTCMobile/ARDSignalingMessage.m
+++ b/examples/objc/AppRTCMobile/ARDSignalingMessage.m
@@ -125,6 +125,7 @@ static NSString * const kARDTypeValueRemoveCandidates = @"remove-candidates";
       messageType = kARDSignalingMessageTypeAnswer;
       break;
     case RTCSdpTypePrAnswer:
+    case RTCSdpTypeRollback:
       NSAssert(
           NO, @"Unexpected type: %@", [RTC_OBJC_TYPE(RTCSessionDescription) stringForType:sdpType]);
       break;
diff --git a/sdk/objc/api/peerconnection/RTCSessionDescription.h b/sdk/objc/api/peerconnection/RTCSessionDescription.h
index 6bd118db13..8a9479d5cf 100644
--- a/sdk/objc/api/peerconnection/RTCSessionDescription.h
+++ b/sdk/objc/api/peerconnection/RTCSessionDescription.h
@@ -20,6 +20,7 @@ typedef NS_ENUM(NSInteger, RTCSdpType) {
   RTCSdpTypeOffer,
   RTCSdpTypePrAnswer,
   RTCSdpTypeAnswer,
+  RTCSdpTypeRollback,
 };
 
 NS_ASSUME_NONNULL_BEGIN
diff --git a/sdk/objc/api/peerconnection/RTCSessionDescription.mm b/sdk/objc/api/peerconnection/RTCSessionDescription.mm
index a62870e088..15865dd1ec 100644
--- a/sdk/objc/api/peerconnection/RTCSessionDescription.mm
+++ b/sdk/objc/api/peerconnection/RTCSessionDescription.mm
@@ -83,6 +83,8 @@
       return webrtc::SessionDescriptionInterface::kPrAnswer;
     case RTCSdpTypeAnswer:
       return webrtc::SessionDescriptionInterface::kAnswer;
+    case RTCSdpTypeRollback:
+      return webrtc::SessionDescriptionInterface::kRollback;
   }
 }
 
@@ -93,6 +95,8 @@
     return RTCSdpTypePrAnswer;
   } else if (string == webrtc::SessionDescriptionInterface::kAnswer) {
     return RTCSdpTypeAnswer;
+  } else if (string == webrtc::SessionDescriptionInterface::kRollback) {
+    return RTCSdpTypeRollback;
   } else {
     RTC_NOTREACHED();
     return RTCSdpTypeOffer;