diff --git a/src/rtp/obu_parser.cpp b/src/rtp/obu_parser.cpp
index c3f982b..ebe6639 100644
--- a/src/rtp/obu_parser.cpp
+++ b/src/rtp/obu_parser.cpp
@@ -95,14 +95,13 @@ std::vector<Obu> ParseObus(uint8_t* payload, int payload_size) {
 
     // Skip obus that shouldn't be transfered over rtp.
     int obu_type = ObuType(obu.header_);
-    // if (obu_type != kObuTypeTemporalDelimiter &&  //
-    //     obu_type != kObuTypeTileList &&           //
-    //     obu_type != kObuTypePadding) {
-    //   result.push_back(obu);
-    // }
-    if (1) {
+    if (obu_type != kObuTypeTemporalDelimiter && obu_type != kObuTypeTileList &&
+        obu_type != kObuTypePadding) {
       result.push_back(obu);
     }
+    // if (1) {
+    //   result.push_back(obu);
+    // }
   }
 
   // for (int i = 0; i < result.size(); i++) {
diff --git a/src/rtp/rtp_codec.cpp b/src/rtp/rtp_codec.cpp
index aff7dbc..6e79459 100644
--- a/src/rtp/rtp_codec.cpp
+++ b/src/rtp/rtp_codec.cpp
@@ -17,7 +17,7 @@ RtpCodec ::RtpCodec(RtpPacket::PAYLOAD_TYPE payload_type)
       has_padding_(false),
       has_extension_(false),
       payload_type_(payload_type),
-      sequence_number_(0) {
+      sequence_number_(1) {
   fec_encoder_.Init();
 }
 
@@ -541,7 +541,7 @@ void RtpCodec::Encode(VideoFrameType frame_type, uint8_t* buffer, size_t size,
 
         rtp_packet.SetAv1AggrHeader(0, 0, 1, 0);
         rtp_packet.EncodeAv1(obus[i].data_, obus[i].size_);
-        // LOG_ERROR("enc payload size = {}", rtp_packet.PayloadSize());
+
         packets.emplace_back(rtp_packet);
       } else {
         size_t last_packet_size = obus[i].size_ % MAX_NALU_LEN;
@@ -583,7 +583,6 @@ void RtpCodec::Encode(VideoFrameType frame_type, uint8_t* buffer, size_t size,
                                  MAX_NALU_LEN);
           }
 
-          // LOG_ERROR("enc payload size = {}", rtp_packet.PayloadSize());
           packets.emplace_back(rtp_packet);
         }
       }
diff --git a/src/rtp/rtp_packet.cpp b/src/rtp/rtp_packet.cpp
index 0f2803d..8e885a6 100644
--- a/src/rtp/rtp_packet.cpp
+++ b/src/rtp/rtp_packet.cpp
@@ -2,8 +2,6 @@
 
 #include <string>
 
-#include "log.h"
-
 void RtpPacket::TryToDecodeRtpPacket() {
   if (PAYLOAD_TYPE::H264 == PAYLOAD_TYPE(buffer_[1] & 0x7F)) {
     nal_unit_type_ = NAL_UNIT_TYPE(buffer_[12] & 0x1F);
diff --git a/src/rtp/rtp_packet.h b/src/rtp/rtp_packet.h
index 611442c..6c3829b 100644
--- a/src/rtp/rtp_packet.h
+++ b/src/rtp/rtp_packet.h
@@ -7,6 +7,8 @@
 
 #include <vector>
 
+#include "log.h"
+
 // Common
 //  0                   1                   2                   3
 //  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
@@ -350,14 +352,30 @@ class RtpPacket {
     ParseRtpData();
     int z, y, w, n;
     GetAv1AggrHeader(z, y, w, n);
-    return !z && !y;
+    // return !z && !y;
+
+    if (z == 0 && y == 0 && w == 1) {
+      return true;
+    } else if (z == 0 && y == 1 & w == 1) {
+      return true;
+    } else {
+      return false;
+    }
   }
 
   bool Av1FrameEnd() {
     ParseRtpData();
     int z, y, w, n;
     GetAv1AggrHeader(z, y, w, n);
-    return z && !y;
+    // return z && !y;
+
+    if (z == 0 && y == 0 && w == 1) {
+      return true;
+    } else if (z == 1 && y == 0 & w == 1) {
+      return true;
+    } else {
+      return false;
+    }
   }
 
  private:
@@ -372,7 +390,7 @@ class RtpPacket {
   uint32_t total_csrc_number_ = 0;
   bool marker_ = false;
   uint32_t payload_type_ = 0;
-  uint16_t sequence_number_ = 0;
+  uint16_t sequence_number_ = 1;
   uint32_t timestamp_ = 0;
   uint32_t ssrc_ = 0;
   std::vector<uint32_t> csrcs_;
diff --git a/src/rtp/rtp_video_receiver.cpp b/src/rtp/rtp_video_receiver.cpp
index 2614e3b..a17cca0 100644
--- a/src/rtp/rtp_video_receiver.cpp
+++ b/src/rtp/rtp_video_receiver.cpp
@@ -241,11 +241,7 @@ bool RtpVideoReceiver::CheckIsH264FrameCompleted(RtpPacket& rtp_packet) {
 bool RtpVideoReceiver::CheckIsAv1FrameCompleted(RtpPacket& rtp_packet) {
   if (rtp_packet.Av1FrameEnd()) {
     uint16_t end_seq = rtp_packet.SequenceNumber();
-    if (incomplete_frame_list_.size() == end_seq) {
-      return true;
-    }
-
-    size_t start = rtp_packet.SequenceNumber();
+    size_t start = end_seq;
     bool start_count = 0;
     while (end_seq--) {
       auto it = incomplete_frame_list_.find(end_seq);
@@ -258,19 +254,14 @@ bool RtpVideoReceiver::CheckIsAv1FrameCompleted(RtpPacket& rtp_packet) {
         continue;
       } else if (it->second.Av1FrameStart()) {
         start = it->second.SequenceNumber();
-        // skip temporal delimiter OBU
-        start_count++;
-        if (start_count == 1)
-          break;
-        else
-          break;
+        break;
       } else {
         LOG_WARN("What happened?")
         return false;
       }
     }
 
-    if (start != rtp_packet.SequenceNumber()) {
+    if (start <= rtp_packet.SequenceNumber()) {
       if (!nv12_data_) {
         nv12_data_ = new uint8_t[NV12_BUFFER_SIZE];
       }
diff --git a/xmake.lua b/xmake.lua
index 378c89f..b0c6256 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -12,7 +12,7 @@ add_defines("ASIO_STANDALONE", "ASIO_HAS_STD_TYPE_TRAITS", "ASIO_HAS_STD_SHARED_
     "ASIO_HAS_CSTDINT", "ASIO_HAS_STD_ARRAY",  "ASIO_HAS_STD_SYSTEM_ERROR")
 
 add_requires("asio 1.24.0", "nlohmann_json", "spdlog 1.11.0", "openfec", "libopus 1.4", "dav1d 1.1.0", "libyuv")
-add_packages("asio", "nlohmann_json", "spdlog", "openfec", "libopus", "libyuv")
+add_packages("asio", "nlohmann_json", "spdlog", "openfec", "libopus", "dav1d", "libyuv")
 
 includes("thirdparty")
 
@@ -21,7 +21,7 @@ if is_os("windows") then
     add_requires("vcpkg::libnice 0.1.21")
     add_requires("vcpkg::aom")
     add_requires("openh264 2.1.1", {configs = {shared = false}})
-    add_packages("vcpkg::ffmpeg", "vcpkg::libnice", "vcpkg::aom", "openh264", "dav1d", "cuda")
+    add_packages("vcpkg::ffmpeg", "vcpkg::libnice", "vcpkg::aom", "openh264", "cuda")
     add_defines("_WEBSOCKETPP_CPP11_INTERNAL_")
     add_requires("cuda")
 elseif is_os("linux") then