Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 691 insertions, 0 deletions

diff --git a/third_party/libwebrtc/test/rtp_file_reader.cc b/third_party/libwebrtc/test/rtp_file_reader.cc
new file mode 100644
index 0000000000..b6f3cbbe5b
--- /dev/null
+++ b/third_party/libwebrtc/test/rtp_file_reader.cc
@@ -0,0 +1,691 @@
+/*
+ *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "test/rtp_file_reader.h"
+
+#include <stdio.h>
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "absl/strings/string_view.h"
+#include "modules/rtp_rtcp/source/rtp_util.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/system/arch.h"
+
+namespace webrtc {
+namespace test {
+
+static const size_t kFirstLineLength = 80;
+static uint16_t kPacketHeaderSize = 8;
+
+#define TRY(expr)                           \
+  do {                                      \
+    if (!(expr)) {                          \
+      RTC_LOG(LS_INFO) << "Failed to read"; \
+      return false;                         \
+    }                                       \
+  } while (0)
+
+bool ReadUint32(uint32_t* out, FILE* file) {
+  *out = 0;
+  for (size_t i = 0; i < 4; ++i) {
+    *out <<= 8;
+    uint8_t tmp;
+    if (fread(&tmp, 1, sizeof(uint8_t), file) != sizeof(uint8_t))
+      return false;
+    *out |= tmp;
+  }
+  return true;
+}
+
+bool ReadUint16(uint16_t* out, FILE* file) {
+  *out = 0;
+  for (size_t i = 0; i < 2; ++i) {
+    *out <<= 8;
+    uint8_t tmp;
+    if (fread(&tmp, 1, sizeof(uint8_t), file) != sizeof(uint8_t))
+      return false;
+    *out |= tmp;
+  }
+  return true;
+}
+
+class RtpFileReaderImpl : public RtpFileReader {
+ public:
+  virtual bool Init(FILE* file, const std::set<uint32_t>& ssrc_filter) = 0;
+};
+
+class InterleavedRtpFileReader : public RtpFileReaderImpl {
+ public:
+  ~InterleavedRtpFileReader() override {
+    if (file_ != nullptr) {
+      fclose(file_);
+      file_ = nullptr;
+    }
+  }
+
+  bool Init(FILE* file, const std::set<uint32_t>& ssrc_filter) override {
+    file_ = file;
+    return true;
+  }
+
+  bool NextPacket(RtpPacket* packet) override {
+    RTC_DCHECK(file_);
+    packet->length = RtpPacket::kMaxPacketBufferSize;
+    uint32_t len = 0;
+    TRY(ReadUint32(&len, file_));
+    if (packet->length < len) {
+      RTC_FATAL() << "Packet is too large to fit: " << len << " bytes vs "
+                  << packet->length
+                  << " bytes allocated. Consider increasing the buffer "
+                  << "size";
+    }
+    if (fread(packet->data, 1, len, file_) != len)
+      return false;
+
+    packet->length = len;
+    packet->original_length = len;
+    packet->time_ms = time_ms_;
+    time_ms_ += 5;
+    return true;
+  }
+
+ private:
+  FILE* file_ = nullptr;
+  int64_t time_ms_ = 0;
+};
+
+// Read RTP packets from file in rtpdump format, as documented at:
+// http://www.cs.columbia.edu/irt/software/rtptools/
+class RtpDumpReader : public RtpFileReaderImpl {
+ public:
+  RtpDumpReader() : file_(nullptr) {}
+  ~RtpDumpReader() override {
+    if (file_ != nullptr) {
+      fclose(file_);
+      file_ = nullptr;
+    }
+  }
+
+  RtpDumpReader(const RtpDumpReader&) = delete;
+  RtpDumpReader& operator=(const RtpDumpReader&) = delete;
+
+  bool Init(FILE* file, const std::set<uint32_t>& ssrc_filter) override {
+    file_ = file;
+
+    char firstline[kFirstLineLength + 1] = {0};
+    if (fgets(firstline, kFirstLineLength, file_) == nullptr) {
+      RTC_LOG(LS_INFO) << "Can't read from file";
+      return false;
+    }
+    if (strncmp(firstline, "#!rtpplay", 9) == 0) {
+      if (strncmp(firstline, "#!rtpplay1.0", 12) != 0) {
+        RTC_LOG(LS_INFO) << "Wrong rtpplay version, must be 1.0";
+        return false;
+      }
+    } else if (strncmp(firstline, "#!RTPencode", 11) == 0) {
+      if (strncmp(firstline, "#!RTPencode1.0", 14) != 0) {
+        RTC_LOG(LS_INFO) << "Wrong RTPencode version, must be 1.0";
+        return false;
+      }
+    } else {
+      RTC_LOG(LS_INFO) << "Wrong file format of input file";
+      return false;
+    }
+
+    uint32_t start_sec;
+    uint32_t start_usec;
+    uint32_t source;
+    uint16_t port;
+    uint16_t padding;
+    TRY(ReadUint32(&start_sec, file_));
+    TRY(ReadUint32(&start_usec, file_));
+    TRY(ReadUint32(&source, file_));
+    TRY(ReadUint16(&port, file_));
+    TRY(ReadUint16(&padding, file_));
+
+    return true;
+  }
+
+  bool NextPacket(RtpPacket* packet) override {
+    uint8_t* rtp_data = packet->data;
+    packet->length = RtpPacket::kMaxPacketBufferSize;
+
+    uint16_t len;
+    uint16_t plen;
+    uint32_t offset;
+    TRY(ReadUint16(&len, file_));
+    TRY(ReadUint16(&plen, file_));
+    TRY(ReadUint32(&offset, file_));
+
+    // Use 'len' here because a 'plen' of 0 specifies rtcp.
+    len -= kPacketHeaderSize;
+    if (packet->length < len) {
+      RTC_LOG(LS_ERROR) << "Packet is too large to fit: " << len << " bytes vs "
+                        << packet->length
+                        << " bytes allocated. Consider increasing the buffer "
+                           "size";
+      return false;
+    }
+    if (fread(rtp_data, 1, len, file_) != len) {
+      return false;
+    }
+
+    packet->length = len;
+    packet->original_length = plen;
+    packet->time_ms = offset;
+    return true;
+  }
+
+ private:
+  FILE* file_;
+};
+
+enum {
+  kResultFail = -1,
+  kResultSuccess = 0,
+  kResultSkip = 1,
+
+  kPcapVersionMajor = 2,
+  kPcapVersionMinor = 4,
+  kLinktypeNull = 0,
+  kLinktypeEthernet = 1,
+  kBsdNullLoopback1 = 0x00000002,
+  kBsdNullLoopback2 = 0x02000000,
+  kEthernetIIHeaderMacSkip = 12,
+  kEthertypeIp = 0x0800,
+  kIpVersion4 = 4,
+  kMinIpHeaderLength = 20,
+  kFragmentOffsetClear = 0x0000,
+  kFragmentOffsetDoNotFragment = 0x4000,
+  kProtocolTcp = 0x06,
+  kProtocolUdp = 0x11,
+  kUdpHeaderLength = 8,
+  kMaxReadBufferSize = 4096
+};
+
+const uint32_t kPcapBOMSwapOrder = 0xd4c3b2a1UL;
+const uint32_t kPcapBOMNoSwapOrder = 0xa1b2c3d4UL;
+
+#define TRY_PCAP(expr)                                               \
+  do {                                                               \
+    int r = (expr);                                                  \
+    if (r == kResultFail) {                                          \
+      RTC_LOG(LS_INFO) << "FAIL at " << __FILE__ << ":" << __LINE__; \
+      return kResultFail;                                            \
+    } else if (r == kResultSkip) {                                   \
+      return kResultSkip;                                            \
+    }                                                                \
+  } while (0)
+
+// Read RTP packets from file in tcpdump/libpcap format, as documented at:
+// http://wiki.wireshark.org/Development/LibpcapFileFormat
+class PcapReader : public RtpFileReaderImpl {
+ public:
+  PcapReader()
+      : file_(nullptr),
+        swap_pcap_byte_order_(false),
+#ifdef WEBRTC_ARCH_BIG_ENDIAN
+        swap_network_byte_order_(false),
+#else
+        swap_network_byte_order_(true),
+#endif
+        read_buffer_(),
+        packets_by_ssrc_(),
+        packets_(),
+        next_packet_it_() {
+  }
+
+  ~PcapReader() override {
+    if (file_ != nullptr) {
+      fclose(file_);
+      file_ = nullptr;
+    }
+  }
+
+  PcapReader(const PcapReader&) = delete;
+  PcapReader& operator=(const PcapReader&) = delete;
+
+  bool Init(FILE* file, const std::set<uint32_t>& ssrc_filter) override {
+    return Initialize(file, ssrc_filter) == kResultSuccess;
+  }
+
+  int Initialize(FILE* file, const std::set<uint32_t>& ssrc_filter) {
+    file_ = file;
+
+    if (ReadGlobalHeader() < 0) {
+      return kResultFail;
+    }
+
+    int total_packet_count = 0;
+    uint32_t stream_start_ms = 0;
+    int32_t next_packet_pos = ftell(file_);
+    for (;;) {
+      TRY_PCAP(fseek(file_, next_packet_pos, SEEK_SET));
+      int result = ReadPacket(&next_packet_pos, stream_start_ms,
+                              ++total_packet_count, ssrc_filter);
+      if (result == kResultFail) {
+        break;
+      } else if (result == kResultSuccess && packets_.size() == 1) {
+        RTC_DCHECK_EQ(stream_start_ms, 0);
+        PacketIterator it = packets_.begin();
+        stream_start_ms = it->time_offset_ms;
+        it->time_offset_ms = 0;
+      }
+    }
+
+    if (feof(file_) == 0) {
+      printf("Failed reading file!\n");
+      return kResultFail;
+    }
+
+    printf("Total packets in file: %d\n", total_packet_count);
+    printf("Total RTP/RTCP packets: %zu\n", packets_.size());
+
+    for (SsrcMapIterator mit = packets_by_ssrc_.begin();
+         mit != packets_by_ssrc_.end(); ++mit) {
+      uint32_t ssrc = mit->first;
+      const std::vector<uint32_t>& packet_indices = mit->second;
+      int pt = packets_[packet_indices[0]].payload_type;
+      printf("SSRC: %08x, %zu packets, pt=%d\n", ssrc, packet_indices.size(),
+             pt);
+    }
+
+    // TODO(solenberg): Better validation of identified SSRC streams.
+    //
+    // Since we're dealing with raw network data here, we will wrongly identify
+    // some packets as RTP. When these packets are consumed by RtpPlayer, they
+    // are unlikely to cause issues as they will ultimately be filtered out by
+    // the RtpRtcp module. However, we should really do better filtering here,
+    // which we can accomplish in a number of ways, e.g.:
+    //
+    // - Verify that the time stamps and sequence numbers for RTP packets are
+    //   both increasing/decreasing. If they move in different directions, the
+    //   SSRC is likely bogus and can be dropped. (Normally they should be inc-
+    //   reasing but we must allow packet reordering).
+    // - If RTP sequence number is not changing, drop the stream.
+    // - Can also use srcip:port->dstip:port pairs, assuming few SSRC collisions
+    //   for up/down streams.
+
+    next_packet_it_ = packets_.begin();
+    return kResultSuccess;
+  }
+
+  bool NextPacket(RtpPacket* packet) override {
+    uint32_t length = RtpPacket::kMaxPacketBufferSize;
+    if (NextPcap(packet->data, &length, &packet->time_ms) != kResultSuccess)
+      return false;
+    packet->length = static_cast<size_t>(length);
+    packet->original_length = packet->length;
+    return true;
+  }
+
+  virtual int NextPcap(uint8_t* data, uint32_t* length, uint32_t* time_ms) {
+    RTC_DCHECK(data);
+    RTC_DCHECK(length);
+    RTC_DCHECK(time_ms);
+
+    if (next_packet_it_ == packets_.end()) {
+      return -1;
+    }
+    if (*length < next_packet_it_->payload_length) {
+      return -1;
+    }
+    TRY_PCAP(fseek(file_, next_packet_it_->pos_in_file, SEEK_SET));
+    TRY_PCAP(Read(data, next_packet_it_->payload_length));
+    *length = next_packet_it_->payload_length;
+    *time_ms = next_packet_it_->time_offset_ms;
+    next_packet_it_++;
+
+    return 0;
+  }
+
+ private:
+  // A marker of an RTP packet within the file.
+  struct RtpPacketMarker {
+    uint32_t packet_number;  // One-based index (like in WireShark)
+    uint32_t time_offset_ms;
+    uint32_t source_ip;
+    uint32_t dest_ip;
+    uint16_t source_port;
+    uint16_t dest_port;
+    // Payload type of the RTP packet,
+    // or RTCP packet type of the first RTCP packet in a compound RTCP packet.
+    int payload_type;
+    int32_t pos_in_file;  // Byte offset of payload from start of file.
+    uint32_t payload_length;
+  };
+
+  typedef std::vector<RtpPacketMarker>::iterator PacketIterator;
+  typedef std::map<uint32_t, std::vector<uint32_t> > SsrcMap;
+  typedef std::map<uint32_t, std::vector<uint32_t> >::iterator SsrcMapIterator;
+
+  int ReadGlobalHeader() {
+    uint32_t magic;
+    TRY_PCAP(Read(&magic, false));
+    if (magic == kPcapBOMSwapOrder) {
+      swap_pcap_byte_order_ = true;
+    } else if (magic == kPcapBOMNoSwapOrder) {
+      swap_pcap_byte_order_ = false;
+    } else {
+      return kResultFail;
+    }
+
+    uint16_t version_major;
+    uint16_t version_minor;
+    TRY_PCAP(Read(&version_major, false));
+    TRY_PCAP(Read(&version_minor, false));
+    if (version_major != kPcapVersionMajor ||
+        version_minor != kPcapVersionMinor) {
+      return kResultFail;
+    }
+
+    int32_t this_zone;  // GMT to local correction.
+    uint32_t sigfigs;   // Accuracy of timestamps.
+    uint32_t snaplen;   // Max length of captured packets, in octets.
+    uint32_t network;   // Data link type.
+    TRY_PCAP(Read(&this_zone, false));
+    TRY_PCAP(Read(&sigfigs, false));
+    TRY_PCAP(Read(&snaplen, false));
+    TRY_PCAP(Read(&network, false));
+
+    // Accept only LINKTYPE_NULL and LINKTYPE_ETHERNET.
+    // See: http://www.tcpdump.org/linktypes.html
+    if (network != kLinktypeNull && network != kLinktypeEthernet) {
+      return kResultFail;
+    }
+
+    return kResultSuccess;
+  }
+
+  int ReadPacket(int32_t* next_packet_pos,
+                 uint32_t stream_start_ms,
+                 uint32_t number,
+                 const std::set<uint32_t>& ssrc_filter) {
+    RTC_DCHECK(next_packet_pos);
+
+    uint32_t ts_sec;    // Timestamp seconds.
+    uint32_t ts_usec;   // Timestamp microseconds.
+    uint32_t incl_len;  // Number of octets of packet saved in file.
+    uint32_t orig_len;  // Actual length of packet.
+    TRY_PCAP(Read(&ts_sec, false));
+    TRY_PCAP(Read(&ts_usec, false));
+    TRY_PCAP(Read(&incl_len, false));
+    TRY_PCAP(Read(&orig_len, false));
+
+    *next_packet_pos = ftell(file_) + incl_len;
+
+    RtpPacketMarker marker = {0};
+    marker.packet_number = number;
+    marker.time_offset_ms = CalcTimeDelta(ts_sec, ts_usec, stream_start_ms);
+    TRY_PCAP(ReadPacketHeader(&marker));
+    marker.pos_in_file = ftell(file_);
+
+    if (marker.payload_length > sizeof(read_buffer_)) {
+      printf("Packet too large!\n");
+      return kResultFail;
+    }
+    TRY_PCAP(Read(read_buffer_, marker.payload_length));
+
+    rtc::ArrayView<const uint8_t> packet(read_buffer_, marker.payload_length);
+    if (IsRtcpPacket(packet)) {
+      marker.payload_type = packet[1];
+      packets_.push_back(marker);
+    } else if (IsRtpPacket(packet)) {
+      uint32_t ssrc = ParseRtpSsrc(packet);
+      marker.payload_type = ParseRtpPayloadType(packet);
+      if (ssrc_filter.empty() || ssrc_filter.find(ssrc) != ssrc_filter.end()) {
+        packets_by_ssrc_[ssrc].push_back(
+            static_cast<uint32_t>(packets_.size()));
+        packets_.push_back(marker);
+      } else {
+        return kResultSkip;
+      }
+    } else {
+      RTC_LOG(LS_INFO) << "Not recognized as RTP/RTCP";
+      return kResultSkip;
+    }
+
+    return kResultSuccess;
+  }
+
+  int ReadPacketHeader(RtpPacketMarker* marker) {
+    int32_t file_pos = ftell(file_);
+
+    // Check for BSD null/loopback frame header. The header is just 4 bytes in
+    // native byte order, so we check for both versions as we don't care about
+    // the header as such and will likely fail reading the IP header if this is
+    // something else than null/loopback.
+    uint32_t protocol;
+    TRY_PCAP(Read(&protocol, true));
+    if (protocol == kBsdNullLoopback1 || protocol == kBsdNullLoopback2) {
+      int result = ReadXxpIpHeader(marker);
+      RTC_LOG(LS_INFO) << "Recognized loopback frame";
+      if (result != kResultSkip) {
+        return result;
+      }
+    }
+
+    TRY_PCAP(fseek(file_, file_pos, SEEK_SET));
+
+    // Check for Ethernet II, IP frame header.
+    uint16_t type;
+    TRY_PCAP(Skip(kEthernetIIHeaderMacSkip));  // Source+destination MAC.
+    TRY_PCAP(Read(&type, true));
+    if (type == kEthertypeIp) {
+      int result = ReadXxpIpHeader(marker);
+      RTC_LOG(LS_INFO) << "Recognized ethernet 2 frame";
+      if (result != kResultSkip) {
+        return result;
+      }
+    }
+
+    return kResultSkip;
+  }
+
+  uint32_t CalcTimeDelta(uint32_t ts_sec, uint32_t ts_usec, uint32_t start_ms) {
+    // Round to nearest ms.
+    uint64_t t2_ms =
+        ((static_cast<uint64_t>(ts_sec) * 1000000) + ts_usec + 500) / 1000;
+    uint64_t t1_ms = static_cast<uint64_t>(start_ms);
+    if (t2_ms < t1_ms) {
+      return 0;
+    } else {
+      return t2_ms - t1_ms;
+    }
+  }
+
+  int ReadXxpIpHeader(RtpPacketMarker* marker) {
+    RTC_DCHECK(marker);
+
+    uint16_t version;
+    uint16_t length;
+    uint16_t id;
+    uint16_t fragment;
+    uint16_t protocol;
+    uint16_t checksum;
+    TRY_PCAP(Read(&version, true));
+    TRY_PCAP(Read(&length, true));
+    TRY_PCAP(Read(&id, true));
+    TRY_PCAP(Read(&fragment, true));
+    TRY_PCAP(Read(&protocol, true));
+    TRY_PCAP(Read(&checksum, true));
+    TRY_PCAP(Read(&marker->source_ip, true));
+    TRY_PCAP(Read(&marker->dest_ip, true));
+
+    if (((version >> 12) & 0x000f) != kIpVersion4) {
+      RTC_LOG(LS_INFO) << "IP header is not IPv4";
+      return kResultSkip;
+    }
+
+    if (fragment != kFragmentOffsetClear &&
+        fragment != kFragmentOffsetDoNotFragment) {
+      RTC_LOG(LS_INFO) << "IP fragments cannot be handled";
+      return kResultSkip;
+    }
+
+    // Skip remaining fields of IP header.
+    uint16_t header_length = (version & 0x0f00) >> (8 - 2);
+    RTC_DCHECK_GE(header_length, kMinIpHeaderLength);
+    TRY_PCAP(Skip(header_length - kMinIpHeaderLength));
+
+    protocol = protocol & 0x00ff;
+    if (protocol == kProtocolTcp) {
+      RTC_LOG(LS_INFO) << "TCP packets are not handled";
+      return kResultSkip;
+    } else if (protocol == kProtocolUdp) {
+      uint16_t length;
+      uint16_t checksum;
+      TRY_PCAP(Read(&marker->source_port, true));
+      TRY_PCAP(Read(&marker->dest_port, true));
+      TRY_PCAP(Read(&length, true));
+      TRY_PCAP(Read(&checksum, true));
+      marker->payload_length = length - kUdpHeaderLength;
+    } else {
+      RTC_LOG(LS_INFO) << "Unknown transport (expected UDP or TCP)";
+      return kResultSkip;
+    }
+
+    return kResultSuccess;
+  }
+
+  int Read(uint32_t* out, bool expect_network_order) {
+    uint32_t tmp = 0;
+    if (fread(&tmp, 1, sizeof(uint32_t), file_) != sizeof(uint32_t)) {
+      return kResultFail;
+    }
+    if ((!expect_network_order && swap_pcap_byte_order_) ||
+        (expect_network_order && swap_network_byte_order_)) {
+      tmp = ((tmp >> 24) & 0x000000ff) | (tmp << 24) |
+            ((tmp >> 8) & 0x0000ff00) | ((tmp << 8) & 0x00ff0000);
+    }
+    *out = tmp;
+    return kResultSuccess;
+  }
+
+  int Read(uint16_t* out, bool expect_network_order) {
+    uint16_t tmp = 0;
+    if (fread(&tmp, 1, sizeof(uint16_t), file_) != sizeof(uint16_t)) {
+      return kResultFail;
+    }
+    if ((!expect_network_order && swap_pcap_byte_order_) ||
+        (expect_network_order && swap_network_byte_order_)) {
+      tmp = ((tmp >> 8) & 0x00ff) | (tmp << 8);
+    }
+    *out = tmp;
+    return kResultSuccess;
+  }
+
+  int Read(uint8_t* out, uint32_t count) {
+    if (fread(out, 1, count, file_) != count) {
+      return kResultFail;
+    }
+    return kResultSuccess;
+  }
+
+  int Read(int32_t* out, bool expect_network_order) {
+    int32_t tmp = 0;
+    if (fread(&tmp, 1, sizeof(uint32_t), file_) != sizeof(uint32_t)) {
+      return kResultFail;
+    }
+    if ((!expect_network_order && swap_pcap_byte_order_) ||
+        (expect_network_order && swap_network_byte_order_)) {
+      tmp = ((tmp >> 24) & 0x000000ff) | (tmp << 24) |
+            ((tmp >> 8) & 0x0000ff00) | ((tmp << 8) & 0x00ff0000);
+    }
+    *out = tmp;
+    return kResultSuccess;
+  }
+
+  int Skip(uint32_t length) {
+    if (fseek(file_, length, SEEK_CUR) != 0) {
+      return kResultFail;
+    }
+    return kResultSuccess;
+  }
+
+  FILE* file_;
+  bool swap_pcap_byte_order_;
+  const bool swap_network_byte_order_;
+  uint8_t read_buffer_[kMaxReadBufferSize];
+
+  SsrcMap packets_by_ssrc_;
+  std::vector<RtpPacketMarker> packets_;
+  PacketIterator next_packet_it_;
+};
+
+RtpFileReaderImpl* CreateReaderForFormat(RtpFileReader::FileFormat format) {
+  RtpFileReaderImpl* reader = nullptr;
+  switch (format) {
+    case RtpFileReader::kPcap:
+      reader = new PcapReader();
+      break;
+    case RtpFileReader::kRtpDump:
+      reader = new RtpDumpReader();
+      break;
+    case RtpFileReader::kLengthPacketInterleaved:
+      reader = new InterleavedRtpFileReader();
+      break;
+  }
+  return reader;
+}
+
+RtpFileReader* RtpFileReader::Create(FileFormat format,
+                                     const uint8_t* data,
+                                     size_t size,
+                                     const std::set<uint32_t>& ssrc_filter) {
+  std::unique_ptr<RtpFileReaderImpl> reader(CreateReaderForFormat(format));
+
+  FILE* file = tmpfile();
+  if (file == nullptr) {
+    printf("ERROR: Can't open file from memory buffer\n");
+    return nullptr;
+  }
+
+  if (fwrite(reinterpret_cast<const void*>(data), sizeof(uint8_t), size,
+             file) != size) {
+    return nullptr;
+  }
+  rewind(file);
+
+  if (!reader->Init(file, ssrc_filter)) {
+    return nullptr;
+  }
+  return reader.release();
+}
+
+RtpFileReader* RtpFileReader::Create(FileFormat format,
+                                     absl::string_view filename,
+                                     const std::set<uint32_t>& ssrc_filter) {
+  RtpFileReaderImpl* reader = CreateReaderForFormat(format);
+  std::string filename_str = std::string(filename);
+  FILE* file = fopen(filename_str.c_str(), "rb");
+  if (file == nullptr) {
+    printf("ERROR: Can't open file: %s\n", filename_str.c_str());
+    return nullptr;
+  }
+
+  if (!reader->Init(file, ssrc_filter)) {
+    delete reader;
+    return nullptr;
+  }
+  return reader;
+}
+
+RtpFileReader* RtpFileReader::Create(FileFormat format,
+                                     absl::string_view filename) {
+  return RtpFileReader::Create(format, filename, std::set<uint32_t>());
+}
+
+}  // namespace test
+}  // namespace webrtc