diff --git a/media/webrtc/trunk/webrtc/modules/video_coding/main/source/jitter_buffer.cc b/media/webrtc/trunk/webrtc/modules/video_coding/main/source/jitter_buffer.cc
index 651f960b167..a0567ca28dd 100644
--- a/media/webrtc/trunk/webrtc/modules/video_coding/main/source/jitter_buffer.cc
+++ b/media/webrtc/trunk/webrtc/modules/video_coding/main/source/jitter_buffer.cc
@@ -590,6 +590,11 @@ VCMEncodedFrame* VCMJitterBuffer::ExtractAndSetDecode(uint32_t timestamp) {
   if ((*frame).IsSessionComplete())
     UpdateAveragePacketsPerFrame(frame->NumPackets());
 
+  if (frame->Length() == 0) {
+    // Normally only if MakeDecodable() on an incomplete frame threw it all away
+    ReleaseFrame(frame);
+    return NULL;
+  }
   return frame;
 }
 
diff --git a/media/webrtc/trunk/webrtc/modules/video_coding/main/source/session_info.cc b/media/webrtc/trunk/webrtc/modules/video_coding/main/source/session_info.cc
index 8ec2349f56a..764a9f436d9 100644
--- a/media/webrtc/trunk/webrtc/modules/video_coding/main/source/session_info.cc
+++ b/media/webrtc/trunk/webrtc/modules/video_coding/main/source/session_info.cc
@@ -548,6 +548,9 @@ int VCMSessionInfo::InsertPacket(const VCMPacket& packet,
 
   int returnLength = InsertBuffer(frame_buffer, packet_list_it);
   UpdateCompleteSession();
+  // We call MakeDecodable() before decoding, which removes packets after a loss
+  // (and which means h.264 mode 1 frames with a loss in the first packet will be
+  // totally removed)
   if (decode_error_mode == kWithErrors)
     decodable_ = true;
   else if (decode_error_mode == kSelectiveErrors)