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- // Copyright 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- // A very simple packet builder class for building RTCP packets.
- // Used for testing only.
- #ifndef MEDIA_CAST_TEST_TEST_RTCP_PACKET_BUILDER_H_
- #define MEDIA_CAST_TEST_TEST_RTCP_PACKET_BUILDER_H_
- #include <stdint.h>
- #include <vector>
- #include "base/big_endian.h"
- #include "base/memory/raw_ptr.h"
- #include "media/cast/net/cast_transport_defines.h"
- #include "media/cast/net/rtcp/rtcp_defines.h"
- namespace media {
- namespace cast {
- // These values are arbitrary only for the purpose of testing.
- namespace {
- // Sender report.
- static const uint32_t kNtpHigh = 0x01020304;
- static const uint32_t kNtpLow = 0x05060708;
- static const uint32_t kRtpTimestamp = 0x10203040;
- static const uint32_t kSendPacketCount = 987;
- static const uint32_t kSendOctetCount = 87654;
- // Report block.
- static const int kLoss = 0x01000123;
- static const int kExtendedMax = 0x15678;
- static const int kTestJitter = 0x10203;
- static const uint32_t kLastSr = 0x34561234;
- static const uint32_t kDelayLastSr = 1000;
- // DLRR block.
- static const int kLastRr = 0x34561234;
- static const int kDelayLastRr = 1000;
- // NACK.
- static const int kMissingPacket = 34567;
- // CAST.
- static const uint32_t kAckFrameId = 17;
- static const uint32_t kLostFrameId = 18;
- static const uint32_t kFrameIdWithLostPackets = 19;
- static const int kLostPacketId1 = 3;
- static const int kLostPacketId2 = 5;
- static const int kLostPacketId3 = 12;
- static const uint8_t kFeedbackSeq = 1;
- } // namespace
- class TestRtcpPacketBuilder {
- public:
- TestRtcpPacketBuilder();
- TestRtcpPacketBuilder(const TestRtcpPacketBuilder&) = delete;
- TestRtcpPacketBuilder& operator=(const TestRtcpPacketBuilder&) = delete;
- void AddSr(uint32_t remote_ssrc, int number_of_report_blocks);
- void AddSrWithNtp(uint32_t remote_ssrc,
- uint32_t ntp_high,
- uint32_t ntp_low,
- uint32_t rtp_timestamp);
- void AddRr(uint32_t remote_ssrc, int number_of_report_blocks);
- void AddRb(uint32_t rtp_ssrc);
- void AddXrHeader(uint32_t remote_ssrc);
- void AddXrDlrrBlock(uint32_t remote_ssrc);
- void AddXrExtendedDlrrBlock(uint32_t remote_ssrc);
- void AddXrRrtrBlock();
- void AddXrUnknownBlock();
- void AddUnknownBlock();
- void AddNack(uint32_t remote_ssrc, uint32_t local_ssrc);
- void AddSendReportRequest(uint32_t remote_ssrc, uint32_t local_ssrc);
- void AddCast(uint32_t remote_ssrc,
- uint32_t local_ssrc,
- base::TimeDelta target_delay);
- void AddCst2(const std::vector<FrameId>& later_received_frames);
- void AddErrorCst2(); // With wrong identifier.
- void AddPli(uint32_t remote_ssrc, uint32_t local_ssrc);
- void AddReceiverLog(uint32_t remote_ssrc);
- void AddReceiverFrameLog(uint32_t rtp_timestamp,
- int num_events,
- uint32_t event_timesamp_base);
- void AddReceiverEventLog(uint16_t event_data,
- CastLoggingEvent event,
- uint16_t event_timesamp_delta);
- std::unique_ptr<Packet> GetPacket();
- const uint8_t* Data();
- int Length() { return kMaxIpPacketSize - big_endian_writer_.remaining(); }
- base::BigEndianReader* Reader();
- private:
- void AddRtcpHeader(int payload, int format_or_count);
- void PatchLengthField();
- // Where the length field of the current packet is.
- // Note: 0 is not a legal value, it is used for "uninitialized".
- uint8_t buffer_[kMaxIpPacketSize];
- raw_ptr<char> ptr_of_length_;
- base::BigEndianWriter big_endian_writer_;
- base::BigEndianReader big_endian_reader_;
- };
- } // namespace cast
- } // namespace media
- #endif // MEDIA_CAST_TEST_TEST_RTCP_PACKET_BUILDER_H_
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