diff --git a/modules/audio_coding/BUILD.gn b/modules/audio_coding/BUILD.gn
index 5889018ec6..44f9a8b19b 100644
--- a/modules/audio_coding/BUILD.gn
+++ b/modules/audio_coding/BUILD.gn
@@ -1145,6 +1145,7 @@ rtc_source_set("neteq_test_tools") {
     "../../test:rtp_test_utils",
     "../rtp_rtcp",
     "../rtp_rtcp:rtp_rtcp_format",
+    "//third_party/abseil-cpp/absl/types:optional",
   ]
 
   public_deps = [
@@ -1238,6 +1239,7 @@ if (rtc_enable_protobuf) {
       "../../rtc_base:rtc_base_approved",
       "../rtp_rtcp",
       "../rtp_rtcp:rtp_rtcp_format",
+      "//third_party/abseil-cpp/absl/types:optional",
     ]
     public_deps = [
       "../../logging:rtc_event_log_proto",
diff --git a/modules/audio_coding/neteq/neteq_unittest.cc b/modules/audio_coding/neteq/neteq_unittest.cc
index 3ee0b5bf69..3c63aa736a 100644
--- a/modules/audio_coding/neteq/neteq_unittest.cc
+++ b/modules/audio_coding/neteq/neteq_unittest.cc
@@ -1740,7 +1740,7 @@ TEST(NetEqNoTimeStretchingMode, RunTest) {
       {8, kRtpExtensionVideoTiming}};
   std::unique_ptr<NetEqInput> input(new NetEqRtpDumpInput(
       webrtc::test::ResourcePath("audio_coding/neteq_universal_new", "rtp"),
-      rtp_ext_map));
+      rtp_ext_map, absl::nullopt /*No SSRC filter*/));
   std::unique_ptr<TimeLimitedNetEqInput> input_time_limit(
       new TimeLimitedNetEqInput(std::move(input), 20000));
   std::unique_ptr<AudioSink> output(new VoidAudioSink);
diff --git a/modules/audio_coding/neteq/tools/neteq_event_log_input.cc b/modules/audio_coding/neteq/tools/neteq_event_log_input.cc
index 21c5f9ef02..9107e5e5ef 100644
--- a/modules/audio_coding/neteq/tools/neteq_event_log_input.cc
+++ b/modules/audio_coding/neteq/tools/neteq_event_log_input.cc
@@ -19,11 +19,8 @@ namespace webrtc {
 namespace test {
 
 NetEqEventLogInput::NetEqEventLogInput(const std::string& file_name,
-                                       const RtpHeaderExtensionMap& hdr_ext_map)
-    : source_(RtcEventLogSource::Create(file_name)) {
-  for (const auto& ext_pair : hdr_ext_map) {
-    source_->RegisterRtpHeaderExtension(ext_pair.second, ext_pair.first);
-  }
+                                       absl::optional<uint32_t> ssrc_filter)
+    : source_(RtcEventLogSource::Create(file_name, ssrc_filter)) {
   LoadNextPacket();
   AdvanceOutputEvent();
 }
diff --git a/modules/audio_coding/neteq/tools/neteq_event_log_input.h b/modules/audio_coding/neteq/tools/neteq_event_log_input.h
index 86cf9f2f02..e04df1684f 100644
--- a/modules/audio_coding/neteq/tools/neteq_event_log_input.h
+++ b/modules/audio_coding/neteq/tools/neteq_event_log_input.h
@@ -28,7 +28,7 @@ class RtcEventLogSource;
 class NetEqEventLogInput final : public NetEqPacketSourceInput {
  public:
   NetEqEventLogInput(const std::string& file_name,
-                     const RtpHeaderExtensionMap& hdr_ext_map);
+                     absl::optional<uint32_t> ssrc_filter);
 
   absl::optional<int64_t> NextOutputEventTime() const override;
   void AdvanceOutputEvent() override;
diff --git a/modules/audio_coding/neteq/tools/neteq_packet_source_input.cc b/modules/audio_coding/neteq/tools/neteq_packet_source_input.cc
index a86cf6afa5..ee02288c86 100644
--- a/modules/audio_coding/neteq/tools/neteq_packet_source_input.cc
+++ b/modules/audio_coding/neteq/tools/neteq_packet_source_input.cc
@@ -58,15 +58,10 @@ std::unique_ptr<NetEqInput::PacketData> NetEqPacketSourceInput::PopPacket() {
   return packet_data;
 }
 
-void NetEqPacketSourceInput::SelectSsrc(uint32_t ssrc) {
-  source()->SelectSsrc(ssrc);
-  if (packet_ && packet_->header().ssrc != ssrc)
-    LoadNextPacket();
-}
-
 NetEqRtpDumpInput::NetEqRtpDumpInput(const std::string& file_name,
-                                     const RtpHeaderExtensionMap& hdr_ext_map)
-    : source_(RtpFileSource::Create(file_name)) {
+                                     const RtpHeaderExtensionMap& hdr_ext_map,
+                                     absl::optional<uint32_t> ssrc_filter)
+    : source_(RtpFileSource::Create(file_name, ssrc_filter)) {
   for (const auto& ext_pair : hdr_ext_map) {
     source_->RegisterRtpHeaderExtension(ext_pair.second, ext_pair.first);
   }
diff --git a/modules/audio_coding/neteq/tools/neteq_packet_source_input.h b/modules/audio_coding/neteq/tools/neteq_packet_source_input.h
index b32c534085..8633d1f5dd 100644
--- a/modules/audio_coding/neteq/tools/neteq_packet_source_input.h
+++ b/modules/audio_coding/neteq/tools/neteq_packet_source_input.h
@@ -12,8 +12,10 @@
 #define MODULES_AUDIO_CODING_NETEQ_TOOLS_NETEQ_PACKET_SOURCE_INPUT_H_
 
 #include <map>
+#include <memory>
 #include <string>
 
+#include "absl/types/optional.h"
 #include "modules/audio_coding/neteq/tools/neteq_input.h"
 #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
 
@@ -32,7 +34,6 @@ class NetEqPacketSourceInput : public NetEqInput {
   std::unique_ptr<PacketData> PopPacket() override;
   absl::optional<RTPHeader> NextHeader() const override;
   bool ended() const override { return !next_output_event_ms_; }
-  void SelectSsrc(uint32_t);
 
  protected:
   virtual PacketSource* source() = 0;
@@ -48,7 +49,8 @@ class NetEqPacketSourceInput : public NetEqInput {
 class NetEqRtpDumpInput final : public NetEqPacketSourceInput {
  public:
   NetEqRtpDumpInput(const std::string& file_name,
-                    const RtpHeaderExtensionMap& hdr_ext_map);
+                    const RtpHeaderExtensionMap& hdr_ext_map,
+                    absl::optional<uint32_t> ssrc_filter);
 
   absl::optional<int64_t> NextOutputEventTime() const override;
   void AdvanceOutputEvent() override;
diff --git a/modules/audio_coding/neteq/tools/neteq_test_factory.cc b/modules/audio_coding/neteq/tools/neteq_test_factory.cc
index 51077bc6b8..9c447cc6c6 100644
--- a/modules/audio_coding/neteq/tools/neteq_test_factory.cc
+++ b/modules/audio_coding/neteq/tools/neteq_test_factory.cc
@@ -309,25 +309,27 @@ std::unique_ptr<NetEqTest> NetEqTestFactory::InitializeTest(
       {FLAG_video_content_type, kRtpExtensionVideoContentType},
       {FLAG_video_timing, kRtpExtensionVideoTiming}};
 
+  absl::optional<uint32_t> ssrc_filter;
+  // Check if an SSRC value was provided.
+  if (strlen(FLAG_ssrc) > 0) {
+    uint32_t ssrc;
+    RTC_CHECK(ParseSsrc(FLAG_ssrc, &ssrc)) << "Flag verification has failed.";
+    ssrc_filter = ssrc;
+  }
+
   std::unique_ptr<NetEqInput> input;
   if (RtpFileSource::ValidRtpDump(input_file_name) ||
       RtpFileSource::ValidPcap(input_file_name)) {
-    input.reset(new NetEqRtpDumpInput(input_file_name, rtp_ext_map));
+    input.reset(
+        new NetEqRtpDumpInput(input_file_name, rtp_ext_map, ssrc_filter));
   } else {
-    input.reset(new NetEqEventLogInput(input_file_name, rtp_ext_map));
+    input.reset(new NetEqEventLogInput(input_file_name, ssrc_filter));
   }
 
   std::cout << "Input file: " << input_file_name << std::endl;
   RTC_CHECK(input) << "Cannot open input file";
   RTC_CHECK(!input->ended()) << "Input file is empty";
 
-  // Check if an SSRC value was provided.
-  if (strlen(FLAG_ssrc) > 0) {
-    uint32_t ssrc;
-    RTC_CHECK(ParseSsrc(FLAG_ssrc, &ssrc)) << "Flag verification has failed.";
-    static_cast<NetEqPacketSourceInput*>(input.get())->SelectSsrc(ssrc);
-  }
-
   // Check the sample rate.
   absl::optional<int> sample_rate_hz;
   std::set<std::pair<int, uint32_t>> discarded_pt_and_ssrc;
diff --git a/modules/audio_coding/neteq/tools/packet.cc b/modules/audio_coding/neteq/tools/packet.cc
index b1a9b64193..0e7951b6e3 100644
--- a/modules/audio_coding/neteq/tools/packet.cc
+++ b/modules/audio_coding/neteq/tools/packet.cc
@@ -49,6 +49,20 @@ Packet::Packet(uint8_t* packet_memory,
   valid_header_ = ParseHeader(parser);
 }
 
+Packet::Packet(const RTPHeader& header,
+               size_t virtual_packet_length_bytes,
+               size_t virtual_payload_length_bytes,
+               double time_ms)
+    : header_(header),
+      payload_memory_(),
+      payload_(NULL),
+      packet_length_bytes_(0),
+      payload_length_bytes_(0),
+      virtual_packet_length_bytes_(virtual_packet_length_bytes),
+      virtual_payload_length_bytes_(virtual_payload_length_bytes),
+      time_ms_(time_ms),
+      valid_header_(true) {}
+
 Packet::Packet(uint8_t* packet_memory, size_t allocated_bytes, double time_ms)
     : payload_memory_(packet_memory),
       payload_(NULL),
diff --git a/modules/audio_coding/neteq/tools/packet.h b/modules/audio_coding/neteq/tools/packet.h
index 623c5cb635..39137aae43 100644
--- a/modules/audio_coding/neteq/tools/packet.h
+++ b/modules/audio_coding/neteq/tools/packet.h
@@ -50,7 +50,17 @@ class Packet {
          double time_ms,
          const RtpHeaderParser& parser);
 
-  // The following two constructors are the same as above, but without a
+  // Same as above, but creates the packet from an already parsed RTPHeader.
+  // This is typically used when reading RTP dump files that only contain the
+  // RTP headers, and no payload. The |virtual_packet_length_bytes| tells what
+  // size the packet had on wire, including the now discarded payload,
+  // The |virtual_payload_length_bytes| tells the size of the payload.
+  Packet(const RTPHeader& header,
+         size_t virtual_packet_length_bytes,
+         size_t virtual_payload_length_bytes,
+         double time_ms);
+
+  // The following constructors are the same as the first two, but without a
   // parser. Note that when the object is constructed using any of these
   // methods, the header will be parsed using a default RtpHeaderParser object.
   // In particular, RTP header extensions won't be parsed.
diff --git a/modules/audio_coding/neteq/tools/packet_source.cc b/modules/audio_coding/neteq/tools/packet_source.cc
index 30bf431835..598ae6edd4 100644
--- a/modules/audio_coding/neteq/tools/packet_source.cc
+++ b/modules/audio_coding/neteq/tools/packet_source.cc
@@ -13,7 +13,7 @@
 namespace webrtc {
 namespace test {
 
-PacketSource::PacketSource() : use_ssrc_filter_(false), ssrc_(0) {}
+PacketSource::PacketSource() = default;
 
 PacketSource::~PacketSource() = default;
 
@@ -21,10 +21,5 @@ void PacketSource::FilterOutPayloadType(uint8_t payload_type) {
   filter_.set(payload_type, true);
 }
 
-void PacketSource::SelectSsrc(uint32_t ssrc) {
-  use_ssrc_filter_ = true;
-  ssrc_ = ssrc;
-}
-
 }  // namespace test
 }  // namespace webrtc
diff --git a/modules/audio_coding/neteq/tools/packet_source.h b/modules/audio_coding/neteq/tools/packet_source.h
index fb689e33d4..cb86a98999 100644
--- a/modules/audio_coding/neteq/tools/packet_source.h
+++ b/modules/audio_coding/neteq/tools/packet_source.h
@@ -32,13 +32,8 @@ class PacketSource {
 
   virtual void FilterOutPayloadType(uint8_t payload_type);
 
-  virtual void SelectSsrc(uint32_t ssrc);
-
  protected:
   std::bitset<128> filter_;  // Payload type is 7 bits in the RFC.
-  // If SSRC filtering discards all packet that do not match the SSRC.
-  bool use_ssrc_filter_;  // True when SSRC filtering is active.
-  uint32_t ssrc_;  // The selected SSRC. All other SSRCs will be discarded.
 
  private:
   RTC_DISALLOW_COPY_AND_ASSIGN(PacketSource);
diff --git a/modules/audio_coding/neteq/tools/rtc_event_log_source.cc b/modules/audio_coding/neteq/tools/rtc_event_log_source.cc
index 9e435c7cf8..9ba788996d 100644
--- a/modules/audio_coding/neteq/tools/rtc_event_log_source.cc
+++ b/modules/audio_coding/neteq/tools/rtc_event_log_source.cc
@@ -13,94 +13,105 @@
 #include <string.h>
 #include <iostream>
 #include <limits>
+#include <utility>
 
+#include "logging/rtc_event_log/rtc_event_processor.h"
 #include "modules/audio_coding/neteq/tools/packet.h"
-#include "modules/rtp_rtcp/include/rtp_header_parser.h"
 #include "rtc_base/checks.h"
 
 namespace webrtc {
 namespace test {
 
-RtcEventLogSource* RtcEventLogSource::Create(const std::string& file_name) {
+namespace {
+bool ShouldSkipStream(ParsedRtcEventLogNew::MediaType media_type,
+                      uint32_t ssrc,
+                      absl::optional<uint32_t> ssrc_filter) {
+  if (media_type != ParsedRtcEventLogNew::MediaType::AUDIO)
+    return true;
+  if (ssrc_filter.has_value() && ssrc != *ssrc_filter)
+    return true;
+  return false;
+}
+}  // namespace
+
+RtcEventLogSource* RtcEventLogSource::Create(
+    const std::string& file_name,
+    absl::optional<uint32_t> ssrc_filter) {
   RtcEventLogSource* source = new RtcEventLogSource();
-  RTC_CHECK(source->OpenFile(file_name));
+  RTC_CHECK(source->OpenFile(file_name, ssrc_filter));
   return source;
 }
 
 RtcEventLogSource::~RtcEventLogSource() {}
 
-bool RtcEventLogSource::RegisterRtpHeaderExtension(RTPExtensionType type,
-                                                   uint8_t id) {
-  RTC_CHECK(parser_.get());
-  return parser_->RegisterRtpHeaderExtension(type, id);
-}
-
 std::unique_ptr<Packet> RtcEventLogSource::NextPacket() {
-  for (; rtp_packet_index_ < parsed_stream_.GetNumberOfEvents();
-       rtp_packet_index_++) {
-    if (parsed_stream_.GetEventType(rtp_packet_index_) ==
-        ParsedRtcEventLogNew::EventType::RTP_EVENT) {
-      PacketDirection direction;
-      size_t header_length;
-      size_t packet_length;
-      uint64_t timestamp_us = parsed_stream_.GetTimestamp(rtp_packet_index_);
-      parsed_stream_.GetRtpHeader(rtp_packet_index_, &direction, nullptr,
-                                  &header_length, &packet_length, nullptr);
+  if (rtp_packet_index_ >= rtp_packets_.size())
+    return nullptr;
 
-      if (direction != kIncomingPacket) {
-        continue;
-      }
-
-      uint8_t* packet_header = new uint8_t[header_length];
-      parsed_stream_.GetRtpHeader(rtp_packet_index_, nullptr, packet_header,
-                                  nullptr, nullptr, nullptr);
-      std::unique_ptr<Packet> packet(
-          new Packet(packet_header, header_length, packet_length,
-                     static_cast<double>(timestamp_us) / 1000, *parser_.get()));
-
-      if (!packet->valid_header()) {
-        std::cout << "Warning: Packet with index " << rtp_packet_index_
-                  << " has an invalid header and will be ignored." << std::endl;
-        continue;
-      }
-
-      if (parsed_stream_.GetMediaType(packet->header().ssrc, direction) !=
-          ParsedRtcEventLogNew::MediaType::AUDIO) {
-        continue;
-      }
-
-      // Check if the packet should not be filtered out.
-      if (!filter_.test(packet->header().payloadType) &&
-          !(use_ssrc_filter_ && packet->header().ssrc != ssrc_)) {
-        ++rtp_packet_index_;
-        return packet;
-      }
-    }
-  }
-  return nullptr;
+  std::unique_ptr<Packet> packet = std::move(rtp_packets_[rtp_packet_index_++]);
+  return packet;
 }
 
 int64_t RtcEventLogSource::NextAudioOutputEventMs() {
-  while (audio_output_index_ < parsed_stream_.GetNumberOfEvents()) {
-    if (parsed_stream_.GetEventType(audio_output_index_) ==
-        ParsedRtcEventLogNew::EventType::AUDIO_PLAYOUT_EVENT) {
-      LoggedAudioPlayoutEvent playout_event =
-          parsed_stream_.GetAudioPlayout(audio_output_index_);
-      if (!(use_ssrc_filter_ && playout_event.ssrc != ssrc_)) {
-        audio_output_index_++;
-        return playout_event.timestamp_us / 1000;
-      }
-    }
-    audio_output_index_++;
-  }
-  return std::numeric_limits<int64_t>::max();
+  if (audio_output_index_ >= audio_outputs_.size())
+    return std::numeric_limits<int64_t>::max();
+
+  int64_t output_time_ms = audio_outputs_[audio_output_index_++];
+  return output_time_ms;
 }
 
-RtcEventLogSource::RtcEventLogSource()
-    : PacketSource(), parser_(RtpHeaderParser::Create()) {}
+RtcEventLogSource::RtcEventLogSource() : PacketSource() {}
 
-bool RtcEventLogSource::OpenFile(const std::string& file_name) {
-  return parsed_stream_.ParseFile(file_name);
+bool RtcEventLogSource::OpenFile(const std::string& file_name,
+                                 absl::optional<uint32_t> ssrc_filter) {
+  ParsedRtcEventLogNew parsed_log;
+  if (!parsed_log.ParseFile(file_name))
+    return false;
+
+  auto handle_rtp_packet =
+      [this](const webrtc::LoggedRtpPacketIncoming& incoming) {
+        if (!filter_.test(incoming.rtp.header.payloadType)) {
+          rtp_packets_.emplace_back(absl::make_unique<Packet>(
+              incoming.rtp.header, incoming.rtp.total_length,
+              incoming.rtp.total_length - incoming.rtp.header_length,
+              static_cast<double>(incoming.log_time_ms())));
+        }
+      };
+
+  auto handle_audio_playout =
+      [this](const webrtc::LoggedAudioPlayoutEvent& audio_playout) {
+        audio_outputs_.emplace_back(audio_playout.log_time_ms());
+      };
+
+  // This wouldn't be needed if we knew that there was at most one audio stream.
+  webrtc::RtcEventProcessor event_processor;
+  for (const auto& rtp_packets : parsed_log.incoming_rtp_packets_by_ssrc()) {
+    ParsedRtcEventLogNew::MediaType media_type =
+        parsed_log.GetMediaType(rtp_packets.ssrc, webrtc::kIncomingPacket);
+    if (ShouldSkipStream(media_type, rtp_packets.ssrc, ssrc_filter)) {
+      continue;
+    }
+    auto rtp_view = absl::make_unique<
+        webrtc::ProcessableEventList<webrtc::LoggedRtpPacketIncoming>>(
+        rtp_packets.incoming_packets.begin(),
+        rtp_packets.incoming_packets.end(), handle_rtp_packet);
+    event_processor.AddEvents(std::move(rtp_view));
+  }
+
+  for (const auto& audio_playouts : parsed_log.audio_playout_events()) {
+    if (ssrc_filter.has_value() && audio_playouts.first != *ssrc_filter)
+      continue;
+    auto audio_view = absl::make_unique<
+        webrtc::ProcessableEventList<webrtc::LoggedAudioPlayoutEvent>>(
+        audio_playouts.second.begin(), audio_playouts.second.end(),
+        handle_audio_playout);
+    event_processor.AddEvents(std::move(audio_view));
+  }
+
+  // Fills in rtp_packets_ and audio_outputs_.
+  event_processor.ProcessEventsInOrder();
+
+  return true;
 }
 
 }  // namespace test
diff --git a/modules/audio_coding/neteq/tools/rtc_event_log_source.h b/modules/audio_coding/neteq/tools/rtc_event_log_source.h
index db4eb19e11..6b761f7dbb 100644
--- a/modules/audio_coding/neteq/tools/rtc_event_log_source.h
+++ b/modules/audio_coding/neteq/tools/rtc_event_log_source.h
@@ -13,7 +13,9 @@
 
 #include <memory>
 #include <string>
+#include <vector>
 
+#include "absl/types/optional.h"
 #include "logging/rtc_event_log/rtc_event_log_parser_new.h"
 #include "modules/audio_coding/neteq/tools/packet_source.h"
 #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
@@ -31,13 +33,11 @@ class RtcEventLogSource : public PacketSource {
  public:
   // Creates an RtcEventLogSource reading from |file_name|. If the file cannot
   // be opened, or has the wrong format, NULL will be returned.
-  static RtcEventLogSource* Create(const std::string& file_name);
+  static RtcEventLogSource* Create(const std::string& file_name,
+                                   absl::optional<uint32_t> ssrc_filter);
 
   virtual ~RtcEventLogSource();
 
-  // Registers an RTP header extension and binds it to |id|.
-  virtual bool RegisterRtpHeaderExtension(RTPExtensionType type, uint8_t id);
-
   std::unique_ptr<Packet> NextPacket() override;
 
   // Returns the timestamp of the next audio output event, in milliseconds. The
@@ -48,14 +48,14 @@ class RtcEventLogSource : public PacketSource {
  private:
   RtcEventLogSource();
 
-  bool OpenFile(const std::string& file_name);
+  bool OpenFile(const std::string& file_name,
+                absl::optional<uint32_t> ssrc_filter);
 
+  std::vector<std::unique_ptr<Packet>> rtp_packets_;
   size_t rtp_packet_index_ = 0;
+  std::vector<int64_t> audio_outputs_;
   size_t audio_output_index_ = 0;
 
-  ParsedRtcEventLogNew parsed_stream_;
-  std::unique_ptr<RtpHeaderParser> parser_;
-
   RTC_DISALLOW_COPY_AND_ASSIGN(RtcEventLogSource);
 };
 
diff --git a/modules/audio_coding/neteq/tools/rtp_file_source.cc b/modules/audio_coding/neteq/tools/rtp_file_source.cc
index 806bba7a9f..eda2b3e31f 100644
--- a/modules/audio_coding/neteq/tools/rtp_file_source.cc
+++ b/modules/audio_coding/neteq/tools/rtp_file_source.cc
@@ -26,8 +26,9 @@
 namespace webrtc {
 namespace test {
 
-RtpFileSource* RtpFileSource::Create(const std::string& file_name) {
-  RtpFileSource* source = new RtpFileSource();
+RtpFileSource* RtpFileSource::Create(const std::string& file_name,
+                                     absl::optional<uint32_t> ssrc_filter) {
+  RtpFileSource* source = new RtpFileSource(ssrc_filter);
   RTC_CHECK(source->OpenFile(file_name));
   return source;
 }
@@ -72,7 +73,7 @@ std::unique_ptr<Packet> RtpFileSource::NextPacket() {
       continue;
     }
     if (filter_.test(packet->header().payloadType) ||
-        (use_ssrc_filter_ && packet->header().ssrc != ssrc_)) {
+        (ssrc_filter_ && packet->header().ssrc != *ssrc_filter_)) {
       // This payload type should be filtered out. Continue to the next packet.
       continue;
     }
@@ -80,8 +81,10 @@ std::unique_ptr<Packet> RtpFileSource::NextPacket() {
   }
 }
 
-RtpFileSource::RtpFileSource()
-    : PacketSource(), parser_(RtpHeaderParser::Create()) {}
+RtpFileSource::RtpFileSource(absl::optional<uint32_t> ssrc_filter)
+    : PacketSource(),
+      parser_(RtpHeaderParser::Create()),
+      ssrc_filter_(ssrc_filter) {}
 
 bool RtpFileSource::OpenFile(const std::string& file_name) {
   rtp_reader_.reset(RtpFileReader::Create(RtpFileReader::kRtpDump, file_name));
diff --git a/modules/audio_coding/neteq/tools/rtp_file_source.h b/modules/audio_coding/neteq/tools/rtp_file_source.h
index 013333b89a..02ab897566 100644
--- a/modules/audio_coding/neteq/tools/rtp_file_source.h
+++ b/modules/audio_coding/neteq/tools/rtp_file_source.h
@@ -16,6 +16,7 @@
 #include <memory>
 #include <string>
 
+#include "absl/types/optional.h"
 #include "common_types.h"  // NOLINT(build/include)
 #include "modules/audio_coding/neteq/tools/packet_source.h"
 #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
@@ -33,7 +34,9 @@ class RtpFileSource : public PacketSource {
  public:
   // Creates an RtpFileSource reading from |file_name|. If the file cannot be
   // opened, or has the wrong format, NULL will be returned.
-  static RtpFileSource* Create(const std::string& file_name);
+  static RtpFileSource* Create(
+      const std::string& file_name,
+      absl::optional<uint32_t> ssrc_filter = absl::nullopt);
 
   // Checks whether a files is a valid RTP dump or PCAP (Wireshark) file.
   static bool ValidRtpDump(const std::string& file_name);
@@ -51,12 +54,13 @@ class RtpFileSource : public PacketSource {
   static const int kRtpFileHeaderSize = 4 + 4 + 4 + 2 + 2;
   static const size_t kPacketHeaderSize = 8;
 
-  RtpFileSource();
+  explicit RtpFileSource(absl::optional<uint32_t> ssrc_filter);
 
   bool OpenFile(const std::string& file_name);
 
   std::unique_ptr<RtpFileReader> rtp_reader_;
   std::unique_ptr<RtpHeaderParser> parser_;
+  const absl::optional<uint32_t> ssrc_filter_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(RtpFileSource);
 };