H264SpsPpsTracker class which keep tracks of SPS/PPS.

webrtc/modules/include/module_common_types.h

Index: webrtc/modules/include/module_common_types.h
diff --git a/webrtc/modules/include/module_common_types.h b/webrtc/modules/include/module_common_types.h
index 4e431105966e22448c5c94b20a896e14221abe77..24067a3951ac08e53f1e0b614d40db4fa0019cc9 100644
--- a/webrtc/modules/include/module_common_types.h
+++ b/webrtc/modules/include/module_common_types.h
@@ -264,6 +264,10 @@ struct NaluInfo {
   uint8_t type;
   int sps_id;
   int pps_id;
+  
+  // Offset and size are only valid for non-FuA packets.
+  size_t offset;
+  size_t size;
 };
 
 const size_t kMaxNalusPerPacket = 10;