diff --git a/webrtc/modules/video_coding/main/source/decoding_state_unittest.cc b/webrtc/modules/video_coding/main/source/decoding_state_unittest.cc
index f07548ff8..48c8c79ee 100644
--- a/webrtc/modules/video_coding/main/source/decoding_state_unittest.cc
+++ b/webrtc/modules/video_coding/main/source/decoding_state_unittest.cc
@@ -32,7 +32,7 @@ TEST(TestDecodingState, FrameContinuity) {
   VCMFrameBuffer frame;
   VCMFrameBuffer frame_key;
   VCMPacket* packet = new VCMPacket();
-  packet->isFirstPacket = 1;
+  packet->isFirstPacket = true;
   packet->timestamp = 1;
   packet->seqNum = 0xffff;
   packet->frameType = kVideoFrameDelta;
@@ -41,40 +41,41 @@ TEST(TestDecodingState, FrameContinuity) {
   FrameData frame_data;
   frame_data.rtt_ms = 0;
   frame_data.rolling_average_packets_per_frame = -1;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   // Always start with a key frame.
   dec_state.Reset();
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
   packet->frameType = kVideoFrameKey;
-  frame_key.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame_key.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame_key));
   dec_state.SetState(&frame);
   frame.Reset();
   packet->frameType = kVideoFrameDelta;
   // Use pictureId
+  packet->isFirstPacket = false;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 0x0002;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
   frame.Reset();
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 0;
   packet->seqNum = 10;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
 
   // Use sequence numbers.
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = kNoPictureId;
   frame.Reset();
   packet->seqNum = dec_state.sequence_num() - 1u;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
   frame.Reset();
   packet->seqNum = dec_state.sequence_num() + 1u;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   // Insert another packet to this frame
   packet->seqNum++;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   // Verify wrap.
-  EXPECT_EQ(dec_state.sequence_num(), 0xffff);
+  EXPECT_LE(dec_state.sequence_num(), 0xffff);
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   dec_state.SetState(&frame);
 
@@ -87,7 +88,7 @@ TEST(TestDecodingState, FrameContinuity) {
   packet->seqNum = 1;
   packet->timestamp = 1;
   EXPECT_TRUE(dec_state.full_sync());
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   dec_state.SetState(&frame);
   EXPECT_TRUE(dec_state.full_sync());
   frame.Reset();
@@ -97,7 +98,7 @@ TEST(TestDecodingState, FrameContinuity) {
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 1;
   packet->seqNum = 2;
   packet->timestamp = 2;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   dec_state.SetState(&frame);
   EXPECT_TRUE(dec_state.full_sync());
@@ -108,7 +109,7 @@ TEST(TestDecodingState, FrameContinuity) {
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 3;
   packet->seqNum = 4;
   packet->timestamp = 4;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
   // Now insert the next non-base layer (belonging to a next tl0PicId).
   frame.Reset();
@@ -117,7 +118,7 @@ TEST(TestDecodingState, FrameContinuity) {
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 4;
   packet->seqNum = 5;
   packet->timestamp = 5;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   // Checking continuity and not updating the state - this should not trigger
   // an update of sync state.
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
@@ -129,7 +130,7 @@ TEST(TestDecodingState, FrameContinuity) {
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 5;
   packet->seqNum = 6;
   packet->timestamp = 6;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   dec_state.SetState(&frame);
   EXPECT_FALSE(dec_state.full_sync());
@@ -141,7 +142,7 @@ TEST(TestDecodingState, FrameContinuity) {
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 6;
   packet->seqNum = 7;
   packet->timestamp = 7;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   dec_state.SetState(&frame);
   EXPECT_FALSE(dec_state.full_sync());
   frame.Reset();
@@ -150,7 +151,7 @@ TEST(TestDecodingState, FrameContinuity) {
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 7;
   packet->seqNum = 8;
   packet->timestamp = 8;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   // The current frame is not continuous
   dec_state.SetState(&frame);
@@ -170,7 +171,7 @@ TEST(TestDecodingState, UpdateOldPacket) {
   FrameData frame_data;
   frame_data.rtt_ms = 0;
   frame_data.rolling_average_packets_per_frame = -1;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   dec_state.SetState(&frame);
   EXPECT_EQ(dec_state.sequence_num(), 1);
   // Insert an empty packet that does not belong to the same frame.
@@ -222,7 +223,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   FrameData frame_data;
   frame_data.rtt_ms = 0;
   frame_data.rolling_average_packets_per_frame = -1;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   dec_state.SetState(&frame);
   // tl0PicIdx 0, temporal id 1.
   frame.Reset();
@@ -231,7 +232,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 1;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 1;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   dec_state.SetState(&frame);
   EXPECT_TRUE(dec_state.full_sync());
@@ -243,7 +244,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 3;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 3;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
   dec_state.SetState(&frame);
   EXPECT_FALSE(dec_state.full_sync());
@@ -254,7 +255,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 1;
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 4;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   dec_state.SetState(&frame);
   EXPECT_FALSE(dec_state.full_sync());
@@ -268,7 +269,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 2;
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 5;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   dec_state.SetState(&frame);
   EXPECT_TRUE(dec_state.full_sync());
@@ -281,7 +282,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 3;
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 6;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   EXPECT_TRUE(dec_state.full_sync());
   frame.Reset();
@@ -292,7 +293,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 4;
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 8;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
   EXPECT_TRUE(dec_state.full_sync());
   dec_state.SetState(&frame);
@@ -308,7 +309,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 2;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 9;
   packet->codecSpecificHeader.codecHeader.VP8.layerSync = true;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   dec_state.SetState(&frame);
   EXPECT_TRUE(dec_state.full_sync());
 
@@ -329,7 +330,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 0;
   packet->codecSpecificHeader.codecHeader.VP8.layerSync = false;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   dec_state.SetState(&frame);
   EXPECT_TRUE(dec_state.full_sync());
   // Layer 2 - 2 packets (insert one, lose one).
@@ -343,7 +344,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 2;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 1;
   packet->codecSpecificHeader.codecHeader.VP8.layerSync = true;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
   // Layer 1
   frame.Reset();
@@ -356,7 +357,7 @@ TEST(TestDecodingState, MultiLayerBehavior) {
   packet->codecSpecificHeader.codecHeader.VP8.temporalIdx = 1;
   packet->codecSpecificHeader.codecHeader.VP8.pictureId = 2;
   packet->codecSpecificHeader.codecHeader.VP8.layerSync = true;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
   EXPECT_TRUE(dec_state.full_sync());
 
@@ -378,7 +379,7 @@ TEST(TestDecodingState, DiscontinuousPicIdContinuousSeqNum) {
   FrameData frame_data;
   frame_data.rtt_ms = 0;
   frame_data.rolling_average_packets_per_frame = -1;
-  frame.InsertPacket(packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
   dec_state.SetState(&frame);
   EXPECT_TRUE(dec_state.full_sync());
 
@@ -390,7 +391,7 @@ TEST(TestDecodingState, DiscontinuousPicIdContinuousSeqNum) {
   ++packet.seqNum;
   packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 1;
   packet.codecSpecificHeader.codecHeader.VP8.pictureId = 2;
-  frame.InsertPacket(packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
   EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
   dec_state.SetState(&frame);
   EXPECT_FALSE(dec_state.full_sync());
@@ -407,7 +408,7 @@ TEST(TestDecodingState, OldInput) {
   FrameData frame_data;
   frame_data.rtt_ms = 0;
   frame_data.rolling_average_packets_per_frame = -1;
-  frame.InsertPacket(*packet, 0, kNoErrors, frame_data);
+  EXPECT_LE(0, frame.InsertPacket(*packet, 0, kNoErrors, frame_data));
   dec_state.SetState(&frame);
   packet->timestamp = 9;
   EXPECT_TRUE(dec_state.IsOldPacket(packet));
diff --git a/webrtc/modules/video_coding/main/source/frame_buffer.cc b/webrtc/modules/video_coding/main/source/frame_buffer.cc
index 3a6d2cb94..42d627997 100644
--- a/webrtc/modules/video_coding/main/source/frame_buffer.cc
+++ b/webrtc/modules/video_coding/main/source/frame_buffer.cc
@@ -148,6 +148,8 @@ VCMFrameBuffer::InsertPacket(const VCMPacket& packet,
         return kSizeError;
     } else if (retVal == -2) {
         return kDuplicatePacket;
+    } else if (retVal == -3) {
+        return kOutOfBoundsPacket;
     }
     // update length
     _length = Length() + static_cast<uint32_t>(retVal);
diff --git a/webrtc/modules/video_coding/main/source/jitter_buffer.cc b/webrtc/modules/video_coding/main/source/jitter_buffer.cc
index fbfe852ca..327b8f234 100644
--- a/webrtc/modules/video_coding/main/source/jitter_buffer.cc
+++ b/webrtc/modules/video_coding/main/source/jitter_buffer.cc
@@ -798,6 +798,7 @@ VCMFrameBufferEnum VCMJitterBuffer::InsertPacket(const VCMPacket& packet,
       break;
     }
     case kNoError:
+    case kOutOfBoundsPacket:
     case kDuplicatePacket: {
       break;
     }
diff --git a/webrtc/modules/video_coding/main/source/jitter_buffer_common.h b/webrtc/modules/video_coding/main/source/jitter_buffer_common.h
index cd0ba1529..49a5cb97d 100644
--- a/webrtc/modules/video_coding/main/source/jitter_buffer_common.h
+++ b/webrtc/modules/video_coding/main/source/jitter_buffer_common.h
@@ -34,6 +34,7 @@ enum VCMJitterBufferEnum {
 };
 
 enum VCMFrameBufferEnum {
+  kOutOfBoundsPacket    = -7,
   kNotInitialized       = -6,
   kOldPacket            = -5,
   kGeneralError         = -4,
diff --git a/webrtc/modules/video_coding/main/source/session_info.cc b/webrtc/modules/video_coding/main/source/session_info.cc
index a0b985c81..6d90b96c4 100644
--- a/webrtc/modules/video_coding/main/source/session_info.cc
+++ b/webrtc/modules/video_coding/main/source/session_info.cc
@@ -30,7 +30,9 @@ VCMSessionInfo::VCMSessionInfo()
       packets_(),
       empty_seq_num_low_(-1),
       empty_seq_num_high_(-1),
-      packets_not_decodable_(0) {
+      packets_not_decodable_(0),
+      first_packet_seq_num_(-1),
+      last_packet_seq_num_(-1) {
 }
 
 void VCMSessionInfo::UpdateDataPointers(const uint8_t* old_base_ptr,
@@ -100,6 +102,8 @@ void VCMSessionInfo::Reset() {
   empty_seq_num_low_ = -1;
   empty_seq_num_high_ = -1;
   packets_not_decodable_ = 0;
+  first_packet_seq_num_ = -1;
+  last_packet_seq_num_ = -1;
 }
 
 int VCMSessionInfo::SessionLength() const {
@@ -164,7 +168,7 @@ void VCMSessionInfo::ShiftSubsequentPackets(PacketIterator it,
 }
 
 void VCMSessionInfo::UpdateCompleteSession() {
-  if (packets_.front().isFirstPacket && packets_.back().markerBit) {
+  if (HaveFirstPacket() && HaveLastPacket()) {
     // Do we have all the packets in this session?
     bool complete_session = true;
     PacketIterator it = packets_.begin();
@@ -383,12 +387,12 @@ void VCMSessionInfo::SetNotDecodableIfIncomplete() {
 
 bool
 VCMSessionInfo::HaveFirstPacket() const {
-  return !packets_.empty() && packets_.front().isFirstPacket;
+  return !packets_.empty() && (first_packet_seq_num_ != -1);
 }
 
 bool
 VCMSessionInfo::HaveLastPacket() const {
-  return (!packets_.empty() && packets_.back().markerBit);
+  return !packets_.empty() && (last_packet_seq_num_ != -1);
 }
 
 bool
@@ -400,14 +404,6 @@ int VCMSessionInfo::InsertPacket(const VCMPacket& packet,
                                  uint8_t* frame_buffer,
                                  VCMDecodeErrorMode decode_error_mode,
                                  const FrameData& frame_data) {
-  // Check if this is first packet (only valid for some codecs)
-  if (packet.isFirstPacket) {
-    // The first packet in a frame signals the frame type.
-    frame_type_ = packet.frameType;
-  } else if (frame_type_ == kFrameEmpty && packet.frameType != kFrameEmpty) {
-    // Update the frame type with the first media packet.
-    frame_type_ = packet.frameType;
-  }
   if (packet.frameType == kFrameEmpty) {
     // Update sequence number of an empty packet.
     // Only media packets are inserted into the packet list.
@@ -415,8 +411,9 @@ int VCMSessionInfo::InsertPacket(const VCMPacket& packet,
     return 0;
   }
 
-  if (packets_.size() == kMaxPacketsInSession)
+  if (packets_.size() == kMaxPacketsInSession) {
     return -1;
+  }
 
   // Find the position of this packet in the packet list in sequence number
   // order and insert it. Loop over the list in reverse order.
@@ -430,6 +427,32 @@ int VCMSessionInfo::InsertPacket(const VCMPacket& packet,
       (*rit).seqNum == packet.seqNum && (*rit).sizeBytes > 0)
     return -2;
 
+  // Only insert media packets between first and last packets (when available).
+  // Placing check here, as to properly account for duplicate packets.
+  // Check if this is first packet (only valid for some codecs)
+  // Should only be set for one packet per session.
+  if (packet.isFirstPacket && first_packet_seq_num_ == -1) {
+    // The first packet in a frame signals the frame type.
+    frame_type_ = packet.frameType;
+    // Store the sequence number for the first packet.
+    first_packet_seq_num_ = static_cast<int>(packet.seqNum);
+  } else if (first_packet_seq_num_ != -1 &&
+        !IsNewerSequenceNumber(packet.seqNum, first_packet_seq_num_)) {
+    return -3;
+  } else if (frame_type_ == kFrameEmpty && packet.frameType != kFrameEmpty) {
+    // Update the frame type with the type of the first media packet.
+    // TODO(mikhal): Can this trigger?
+    frame_type_ = packet.frameType;
+  }
+
+  // Track the marker bit, should only be set for one packet per session.
+  if (packet.markerBit && last_packet_seq_num_ == -1) {
+    last_packet_seq_num_ = static_cast<int>(packet.seqNum);
+  } else if (last_packet_seq_num_ != -1 &&
+      IsNewerSequenceNumber(packet.seqNum, last_packet_seq_num_)) {
+    return -3;
+  }
+
   // The insert operation invalidates the iterator |rit|.
   PacketIterator packet_list_it = packets_.insert(rit.base(), packet);
 
@@ -439,7 +462,6 @@ int VCMSessionInfo::InsertPacket(const VCMPacket& packet,
     decodable_ = true;
   else if (decode_error_mode == kSelectiveErrors)
     UpdateDecodableSession(frame_data);
-
   return returnLength;
 }
 
diff --git a/webrtc/modules/video_coding/main/source/session_info.h b/webrtc/modules/video_coding/main/source/session_info.h
index 764ee56c8..c7950d3e8 100644
--- a/webrtc/modules/video_coding/main/source/session_info.h
+++ b/webrtc/modules/video_coding/main/source/session_info.h
@@ -155,6 +155,14 @@ class VCMSessionInfo {
   int empty_seq_num_high_;
   // Number of packets discarded because the decoder can't use them.
   int packets_not_decodable_;
+
+  // The following two variables correspond to the first and last media packets
+  // in a session defined by the first packet flag and the marker bit.
+  // They are not necessarily equal to the front and back packets, as packets
+  // may enter out of order.
+  // TODO(mikhal): Refactor the list to use a map.
+  int first_packet_seq_num_;
+  int last_packet_seq_num_;
 };
 
 }  // namespace webrtc
diff --git a/webrtc/modules/video_coding/main/source/session_info_unittest.cc b/webrtc/modules/video_coding/main/source/session_info_unittest.cc
index 83e485e60..1317d783e 100644
--- a/webrtc/modules/video_coding/main/source/session_info_unittest.cc
+++ b/webrtc/modules/video_coding/main/source/session_info_unittest.cc
@@ -153,7 +153,7 @@ TEST_F(TestSessionInfo, TestSimpleAPIs) {
   packet_.sizeBytes = packet_buffer_size();
   packet_.frameType = kVideoFrameKey;
   FillPacket(0);
-  ASSERT_EQ(packet_buffer_size(),
+  EXPECT_EQ(packet_buffer_size(),
             session_.InsertPacket(packet_,
             frame_buffer_,
             kNoErrors,
@@ -164,7 +164,7 @@ TEST_F(TestSessionInfo, TestSimpleAPIs) {
   packet_.isFirstPacket = false;
   packet_.markerBit = true;
   packet_.seqNum += 1;
-  ASSERT_EQ(packet_buffer_size(),
+  EXPECT_EQ(packet_buffer_size(),
             session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
@@ -180,7 +180,7 @@ TEST_F(TestSessionInfo, TestSimpleAPIs) {
   packet_.seqNum  = 2;
   packet_.sizeBytes = 0;
   packet_.frameType = kFrameEmpty;
-  ASSERT_EQ(0,
+  EXPECT_EQ(0,
             session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
@@ -193,7 +193,7 @@ TEST_F(TestSessionInfo, NormalOperation) {
   packet_.isFirstPacket = true;
   packet_.markerBit = false;
   FillPacket(0);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -213,7 +213,7 @@ TEST_F(TestSessionInfo, NormalOperation) {
   packet_.seqNum += 1;
   packet_.markerBit = true;
   FillPacket(9);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -232,7 +232,7 @@ TEST_F(TestSessionInfo, ErrorsEqualDecodableState) {
   packet_.isFirstPacket = false;
   packet_.markerBit = false;
   FillPacket(3);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kWithErrors,
                                   frame_data),
@@ -248,7 +248,7 @@ TEST_F(TestSessionInfo, SelectiveDecodableState) {
   FillPacket(1);
   frame_data.rolling_average_packets_per_frame = 11;
   frame_data.rtt_ms = 150;
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kSelectiveErrors,
                                   frame_data),
@@ -259,7 +259,7 @@ TEST_F(TestSessionInfo, SelectiveDecodableState) {
   packet_.seqNum -= 1;
   FillPacket(0);
   packet_.isFirstPacket = true;
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kSelectiveErrors,
                                   frame_data),
@@ -272,7 +272,7 @@ TEST_F(TestSessionInfo, SelectiveDecodableState) {
   for (int i = 2; i < 8; ++i) {
     packet_.seqNum += 1;
     FillPacket(i);
-    ASSERT_EQ(session_.InsertPacket(packet_,
+    EXPECT_EQ(session_.InsertPacket(packet_,
                                     frame_buffer_,
                                     kSelectiveErrors,
                                     frame_data),
@@ -283,7 +283,7 @@ TEST_F(TestSessionInfo, SelectiveDecodableState) {
 
   packet_.seqNum += 1;
   FillPacket(8);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kSelectiveErrors,
                                   frame_data),
@@ -292,6 +292,202 @@ TEST_F(TestSessionInfo, SelectiveDecodableState) {
   EXPECT_TRUE(session_.decodable());
 }
 
+TEST_F(TestSessionInfo, OutOfBoundsPackets1PacketFrame) {
+  packet_.seqNum = 0x0001;
+  packet_.isFirstPacket = true;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data),
+            packet_buffer_size());
+
+  packet_.seqNum = 0x0004;
+  packet_.isFirstPacket = true;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(-3, session_.InsertPacket(packet_,
+                                      frame_buffer_,
+                                      kNoErrors,
+                                      frame_data));
+  packet_.seqNum = 0x0000;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(-3, session_.InsertPacket(packet_,
+                                      frame_buffer_,
+                                      kNoErrors,
+                                      frame_data));
+}
+
+TEST_F(TestSessionInfo, SetMarkerBitOnce) {
+  packet_.seqNum = 0x0005;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data),
+            packet_buffer_size());
+  ++packet_.seqNum;
+  packet_.isFirstPacket = true;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(-3, session_.InsertPacket(packet_,
+                                      frame_buffer_,
+                                      kNoErrors,
+                                      frame_data));
+}
+
+TEST_F(TestSessionInfo, OutOfBoundsPacketsBase) {
+  // Allow packets in the range 5-6.
+  packet_.seqNum = 0x0005;
+  packet_.isFirstPacket = true;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+  // Insert an older packet with a first packet set.
+  packet_.seqNum = 0x0004;
+  packet_.isFirstPacket = true;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(-3, session_.InsertPacket(packet_,
+                                      frame_buffer_,
+                                      kNoErrors,
+                                      frame_data));
+  packet_.seqNum = 0x0006;
+  packet_.isFirstPacket = true;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+  packet_.seqNum = 0x0008;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(-3, session_.InsertPacket(packet_,
+                                      frame_buffer_,
+                                      kNoErrors,
+                                      frame_data));
+}
+
+TEST_F(TestSessionInfo, OutOfBoundsPacketsWrap) {
+  packet_.seqNum = 0xFFFE;
+  packet_.isFirstPacket = true;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+
+  packet_.seqNum = 0x0004;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+  packet_.seqNum = 0x0002;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = false;
+  FillPacket(1);
+  ASSERT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+  packet_.seqNum = 0xFFF0;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(-3,
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+  packet_.seqNum = 0x0006;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(-3,
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+}
+
+TEST_F(TestSessionInfo, OutOfBoundsOutOfOrder) {
+  // Insert out of bound regular packets, and then the first and last packet.
+  // Verify that correct bounds are maintained.
+  packet_.seqNum = 0x0003;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+  // Insert an older packet with a first packet set.
+  packet_.seqNum = 0x0005;
+  packet_.isFirstPacket = true;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+  packet_.seqNum = 0x0004;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(-3, session_.InsertPacket(packet_,
+                                      frame_buffer_,
+                                      kNoErrors,
+                                      frame_data));
+  packet_.seqNum = 0x0010;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+  packet_.seqNum = 0x0008;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = true;
+  FillPacket(1);
+  EXPECT_EQ(packet_buffer_size(),
+            session_.InsertPacket(packet_,
+                                  frame_buffer_,
+                                  kNoErrors,
+                                  frame_data));
+
+  packet_.seqNum = 0x0009;
+  packet_.isFirstPacket = false;
+  packet_.markerBit = false;
+  FillPacket(1);
+  EXPECT_EQ(-3, session_.InsertPacket(packet_,
+                                      frame_buffer_,
+                                      kNoErrors,
+                                      frame_data));
+}
+
 TEST_F(TestVP8Partitions, TwoPartitionsOneLoss) {
   // Partition 0 | Partition 1
   // [ 0 ] [ 2 ] | [ 3 ]
@@ -303,7 +499,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsOneLoss) {
   FillPacket(0);
   VCMPacket* packet = new VCMPacket(packet_buffer_, packet_buffer_size(),
                                     packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -317,7 +513,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsOneLoss) {
   packet_header_.header.sequenceNumber += 2;
   FillPacket(2);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -331,7 +527,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsOneLoss) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(3);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -360,7 +556,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsOneLoss2) {
   FillPacket(1);
   VCMPacket* packet = new VCMPacket(packet_buffer_, packet_buffer_size(),
                                     packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -374,7 +570,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsOneLoss2) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(2);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -388,7 +584,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsOneLoss2) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(3);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -402,7 +598,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsOneLoss2) {
   packet_header_.header.sequenceNumber += 2;
   FillPacket(5);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -432,7 +628,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsNoLossWrap) {
   FillPacket(0);
   VCMPacket* packet = new VCMPacket(packet_buffer_, packet_buffer_size(),
                                     packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -446,7 +642,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsNoLossWrap) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(1);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -460,7 +656,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsNoLossWrap) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(2);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -474,7 +670,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsNoLossWrap) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(3);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -504,7 +700,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsLossWrap) {
   FillPacket(0);
   VCMPacket* packet = new VCMPacket(packet_buffer_, packet_buffer_size(),
                                     packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -518,7 +714,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsLossWrap) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(1);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -532,7 +728,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsLossWrap) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(2);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -546,7 +742,7 @@ TEST_F(TestVP8Partitions, TwoPartitionsLossWrap) {
   packet_header_.header.sequenceNumber += 2;
   FillPacket(3);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -577,7 +773,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsOneMissing) {
   FillPacket(1);
   VCMPacket* packet = new VCMPacket(packet_buffer_, packet_buffer_size(),
                                     packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -591,7 +787,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsOneMissing) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(2);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -605,7 +801,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsOneMissing) {
   packet_header_.header.sequenceNumber += 3;
   FillPacket(5);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -619,7 +815,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsOneMissing) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(6);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -649,7 +845,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsLossInSecond) {
   FillPacket(1);
   VCMPacket* packet = new VCMPacket(packet_buffer_, packet_buffer_size(),
                                     packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -664,7 +860,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsLossInSecond) {
   FillPacket(2);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(),
                          packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -678,7 +874,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsLossInSecond) {
   packet_header_.header.sequenceNumber += 2;
   FillPacket(4);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -692,7 +888,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsLossInSecond) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(5);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -706,7 +902,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsLossInSecond) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(6);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -720,7 +916,7 @@ TEST_F(TestVP8Partitions, ThreePartitionsLossInSecond) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(7);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -750,7 +946,7 @@ TEST_F(TestVP8Partitions, AggregationOverTwoPackets) {
   FillPacket(0);
   VCMPacket* packet = new VCMPacket(packet_buffer_, packet_buffer_size(),
                                     packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -764,7 +960,7 @@ TEST_F(TestVP8Partitions, AggregationOverTwoPackets) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(1);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -778,7 +974,7 @@ TEST_F(TestVP8Partitions, AggregationOverTwoPackets) {
   packet_header_.header.sequenceNumber += 1;
   FillPacket(2);
   packet = new VCMPacket(packet_buffer_, packet_buffer_size(), packet_header_);
-  ASSERT_EQ(session_.InsertPacket(*packet,
+  EXPECT_EQ(session_.InsertPacket(*packet,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -807,7 +1003,7 @@ TEST_F(TestNalUnits, OnlyReceivedEmptyPacket) {
   packet_.sizeBytes = 0;
   packet_.seqNum = 0;
   packet_.markerBit = false;
-  ASSERT_EQ(0, session_.InsertPacket(packet_,
+  EXPECT_EQ(0, session_.InsertPacket(packet_,
                                      frame_buffer_,
                                      kNoErrors,
                                      frame_data));
@@ -823,7 +1019,7 @@ TEST_F(TestNalUnits, OneIsolatedNaluLoss) {
   packet_.seqNum = 0;
   packet_.markerBit = false;
   FillPacket(0);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -834,7 +1030,7 @@ TEST_F(TestNalUnits, OneIsolatedNaluLoss) {
   packet_.seqNum += 2;
   packet_.markerBit = true;
   FillPacket(2);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -855,7 +1051,7 @@ TEST_F(TestNalUnits, LossInMiddleOfNalu) {
   packet_.seqNum = 0;
   packet_.markerBit = false;
   FillPacket(0);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -866,7 +1062,7 @@ TEST_F(TestNalUnits, LossInMiddleOfNalu) {
   packet_.seqNum += 2;
   packet_.markerBit = true;
   FillPacket(2);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -885,7 +1081,7 @@ TEST_F(TestNalUnits, StartAndEndOfLastNalUnitLost) {
   packet_.seqNum = 0;
   packet_.markerBit = false;
   FillPacket(0);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -896,7 +1092,7 @@ TEST_F(TestNalUnits, StartAndEndOfLastNalUnitLost) {
   packet_.seqNum += 2;
   packet_.markerBit = false;
   FillPacket(1);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -916,7 +1112,7 @@ TEST_F(TestNalUnits, ReorderWrapNoLoss) {
   packet_.seqNum += 1;
   packet_.markerBit = false;
   FillPacket(1);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -927,7 +1123,7 @@ TEST_F(TestNalUnits, ReorderWrapNoLoss) {
   packet_.seqNum -= 1;
   packet_.markerBit = false;
   FillPacket(0);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -938,7 +1134,7 @@ TEST_F(TestNalUnits, ReorderWrapNoLoss) {
   packet_.seqNum += 2;
   packet_.markerBit = true;
   FillPacket(2);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -957,7 +1153,7 @@ TEST_F(TestNalUnits, WrapLosses) {
   packet_.completeNALU = kNaluIncomplete;
   packet_.markerBit = false;
   FillPacket(1);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -968,7 +1164,7 @@ TEST_F(TestNalUnits, WrapLosses) {
   packet_.seqNum += 2;
   packet_.markerBit = true;
   FillPacket(2);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -987,7 +1183,7 @@ TEST_F(TestNalUnits, ReorderWrapLosses) {
   packet_.seqNum += 2;
   packet_.markerBit = true;
   FillPacket(2);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),
@@ -998,7 +1194,7 @@ TEST_F(TestNalUnits, ReorderWrapLosses) {
   packet_.completeNALU = kNaluIncomplete;
   packet_.markerBit = false;
   FillPacket(1);
-  ASSERT_EQ(session_.InsertPacket(packet_,
+  EXPECT_EQ(session_.InsertPacket(packet_,
                                   frame_buffer_,
                                   kNoErrors,
                                   frame_data),