diff --git a/sdk/objc/Framework/Classes/Video/RTCI420Buffer.mm b/sdk/objc/Framework/Classes/Video/RTCI420Buffer.mm
index 65f3d5ad41..3d0538e572 100644
--- a/sdk/objc/Framework/Classes/Video/RTCI420Buffer.mm
+++ b/sdk/objc/Framework/Classes/Video/RTCI420Buffer.mm
@@ -30,6 +30,18 @@
   return self;
 }
 
+- (instancetype)initWithWidth:(int)width
+                       height:(int)height
+                        dataY:(const uint8_t *)dataY
+                        dataU:(const uint8_t *)dataU
+                        dataV:(const uint8_t *)dataV {
+  if (self = [super init]) {
+    _i420Buffer = webrtc::I420Buffer::Copy(
+        width, height, dataY, width, dataU, (width + 1) / 2, dataV, (width + 1) / 2);
+  }
+  return self;
+}
+
 - (instancetype)initWithWidth:(int)width
                        height:(int)height
                       strideY:(int)strideY
diff --git a/sdk/objc/Framework/Headers/WebRTC/RTCVideoFrameBuffer.h b/sdk/objc/Framework/Headers/WebRTC/RTCVideoFrameBuffer.h
index f17d952f98..d590a5f7fc 100644
--- a/sdk/objc/Framework/Headers/WebRTC/RTCVideoFrameBuffer.h
+++ b/sdk/objc/Framework/Headers/WebRTC/RTCVideoFrameBuffer.h
@@ -38,6 +38,11 @@ RTC_EXPORT
 @property(nonatomic, readonly) int strideU;
 @property(nonatomic, readonly) int strideV;
 
+- (instancetype)initWithWidth:(int)width
+                       height:(int)height
+                        dataY:(const uint8_t *)dataY
+                        dataU:(const uint8_t *)dataU
+                        dataV:(const uint8_t *)dataV;
 - (instancetype)initWithWidth:(int)width height:(int)height;
 - (instancetype)initWithWidth:(int)width
                        height:(int)height