diff --git a/sdk/android/api/org/webrtc/VideoRenderer.java b/sdk/android/api/org/webrtc/VideoRenderer.java
index 623f6b9..ec732be 100644
--- a/sdk/android/api/org/webrtc/VideoRenderer.java
+++ b/sdk/android/api/org/webrtc/VideoRenderer.java
@@ -93,7 +93,8 @@
       if (rotationDegree % 90 != 0) {
         throw new IllegalArgumentException("Rotation degree not multiple of 90: " + rotationDegree);
       }
-      if (buffer instanceof VideoFrame.TextureBuffer) {
+      if (buffer instanceof VideoFrame.TextureBuffer
+          && ((VideoFrame.TextureBuffer) buffer).getType() == VideoFrame.TextureBuffer.Type.OES) {
         VideoFrame.TextureBuffer textureBuffer = (VideoFrame.TextureBuffer) buffer;
         this.yuvFrame = false;
         this.textureId = textureBuffer.getTextureId();
diff --git a/sdk/android/src/java/org/webrtc/TextureBufferImpl.java b/sdk/android/src/java/org/webrtc/TextureBufferImpl.java
index c2b2010..3a7da8d 100644
--- a/sdk/android/src/java/org/webrtc/TextureBufferImpl.java
+++ b/sdk/android/src/java/org/webrtc/TextureBufferImpl.java
@@ -67,6 +67,9 @@
 
   @Override
   public VideoFrame.I420Buffer toI420() {
+    if (type == Type.RGB) {
+      throw new RuntimeException("toI420 for RGB frames not implemented yet");
+    }
     // SurfaceTextureHelper requires a stride that is divisible by 8.  Round width up.
     // See SurfaceTextureHelper for details on the size and format.
     int stride = ((width + 7) / 8) * 8;