Cast: Reshuffle files under media/cast

media/cast/rtcp/test_rtcp_packet_builder.cc

-// Copyright 2013 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.
-
-#include "media/cast/rtcp/test_rtcp_packet_builder.h"
-
-#include "base/logging.h"
-#include "media/cast/rtcp/rtcp_utility.h"
-
-namespace media {
-namespace cast {
-
-TestRtcpPacketBuilder::TestRtcpPacketBuilder()
-    : ptr_of_length_(NULL),
-      big_endian_writer_(reinterpret_cast<char*>(buffer_), kMaxIpPacketSize) {}
-
-void TestRtcpPacketBuilder::AddSr(uint32 sender_ssrc,
-                                  int number_of_report_blocks) {
-  AddRtcpHeader(200, number_of_report_blocks);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(kNtpHigh);  // NTP timestamp.
-  big_endian_writer_.WriteU32(kNtpLow);
-  big_endian_writer_.WriteU32(kRtpTimestamp);
-  big_endian_writer_.WriteU32(kSendPacketCount);
-  big_endian_writer_.WriteU32(kSendOctetCount);
-}
-
-void TestRtcpPacketBuilder::AddSrWithNtp(uint32 sender_ssrc,
-                                         uint32 ntp_high,
-                                         uint32 ntp_low,
-                                         uint32 rtp_timestamp) {
-  AddRtcpHeader(200, 0);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(ntp_high);
-  big_endian_writer_.WriteU32(ntp_low);
-  big_endian_writer_.WriteU32(rtp_timestamp);
-  big_endian_writer_.WriteU32(kSendPacketCount);
-  big_endian_writer_.WriteU32(kSendOctetCount);
-}
-
-void TestRtcpPacketBuilder::AddRr(uint32 sender_ssrc,
-                                  int number_of_report_blocks) {
-  AddRtcpHeader(201, number_of_report_blocks);
-  big_endian_writer_.WriteU32(sender_ssrc);
-}
-
-void TestRtcpPacketBuilder::AddRb(uint32 rtp_ssrc) {
-  big_endian_writer_.WriteU32(rtp_ssrc);
-  big_endian_writer_.WriteU32(kLoss);
-  big_endian_writer_.WriteU32(kExtendedMax);
-  big_endian_writer_.WriteU32(kTestJitter);
-  big_endian_writer_.WriteU32(kLastSr);
-  big_endian_writer_.WriteU32(kDelayLastSr);
-}
-
-void TestRtcpPacketBuilder::AddSdesCname(uint32 sender_ssrc,
-                                         const std::string& c_name) {
-  AddRtcpHeader(202, 1);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU8(1);  // c_name.
-
-  DCHECK_LE(c_name.size(), 255u);
-  big_endian_writer_.WriteU8(
-      static_cast<uint8>(c_name.size()));  // c_name length in bytes.
-  for (size_t i = 0; i < c_name.size(); ++i) {
-    big_endian_writer_.WriteU8(c_name.c_str()[i]);
-  }
-  const int padding = 4 - ((c_name.size() + 2) % 4);
-  for (int j = 0; j < padding; ++j) {
-    big_endian_writer_.WriteU8(0);
-  }
-}
-
-void TestRtcpPacketBuilder::AddXrHeader(uint32 sender_ssrc) {
-  AddRtcpHeader(207, 0);
-  big_endian_writer_.WriteU32(sender_ssrc);
-}
-
-void TestRtcpPacketBuilder::AddXrUnknownBlock() {
-  big_endian_writer_.WriteU8(9);   // Block type.
-  big_endian_writer_.WriteU8(0);   // Reserved.
-  big_endian_writer_.WriteU16(4);  // Block length.
-  // First receiver same as sender of this report.
-  big_endian_writer_.WriteU32(0);
-  big_endian_writer_.WriteU32(0);
-  big_endian_writer_.WriteU32(0);
-  big_endian_writer_.WriteU32(0);
-}
-
-void TestRtcpPacketBuilder::AddXrDlrrBlock(uint32 sender_ssrc) {
-  big_endian_writer_.WriteU8(5);   // Block type.
-  big_endian_writer_.WriteU8(0);   // Reserved.
-  big_endian_writer_.WriteU16(3);  // Block length.
-
-  // First receiver same as sender of this report.
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(kLastRr);
-  big_endian_writer_.WriteU32(kDelayLastRr);
-}
-
-void TestRtcpPacketBuilder::AddXrExtendedDlrrBlock(uint32 sender_ssrc) {
-  big_endian_writer_.WriteU8(5);   // Block type.
-  big_endian_writer_.WriteU8(0);   // Reserved.
-  big_endian_writer_.WriteU16(9);  // Block length.
-  big_endian_writer_.WriteU32(0xaaaaaaaa);
-  big_endian_writer_.WriteU32(0xaaaaaaaa);
-  big_endian_writer_.WriteU32(0xaaaaaaaa);
-
-  // First receiver same as sender of this report.
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(kLastRr);
-  big_endian_writer_.WriteU32(kDelayLastRr);
-  big_endian_writer_.WriteU32(0xbbbbbbbb);
-  big_endian_writer_.WriteU32(0xbbbbbbbb);
-  big_endian_writer_.WriteU32(0xbbbbbbbb);
-}
-
-void TestRtcpPacketBuilder::AddXrRrtrBlock() {
-  big_endian_writer_.WriteU8(4);   // Block type.
-  big_endian_writer_.WriteU8(0);   // Reserved.
-  big_endian_writer_.WriteU16(2);  // Block length.
-  big_endian_writer_.WriteU32(kNtpHigh);
-  big_endian_writer_.WriteU32(kNtpLow);
-}
-
-void TestRtcpPacketBuilder::AddNack(uint32 sender_ssrc, uint32 media_ssrc) {
-  AddRtcpHeader(205, 1);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(media_ssrc);
-  big_endian_writer_.WriteU16(kMissingPacket);
-  big_endian_writer_.WriteU16(0);
-}
-
-void TestRtcpPacketBuilder::AddSendReportRequest(uint32 sender_ssrc,
-                                                 uint32 media_ssrc) {
-  AddRtcpHeader(205, 5);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(media_ssrc);
-}
-
-void TestRtcpPacketBuilder::AddPli(uint32 sender_ssrc, uint32 media_ssrc) {
-  AddRtcpHeader(206, 1);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(media_ssrc);
-}
-
-void TestRtcpPacketBuilder::AddRpsi(uint32 sender_ssrc, uint32 media_ssrc) {
-  AddRtcpHeader(206, 3);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(media_ssrc);
-  big_endian_writer_.WriteU8(0);  // Padding bits.
-  big_endian_writer_.WriteU8(kPayloadtype);
-  uint64 picture_id = kPictureId;
-
-  for (int i = 9; i > 0; i--) {
-    big_endian_writer_.WriteU8(0x80 |
-                               static_cast<uint8>(picture_id >> (i * 7)));
-  }
-  // Add last byte of picture ID.
-  big_endian_writer_.WriteU8(static_cast<uint8>(picture_id & 0x7f));
-}
-
-void TestRtcpPacketBuilder::AddRemb(uint32 sender_ssrc, uint32 media_ssrc) {
-  AddRtcpHeader(206, 15);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(0);
-  big_endian_writer_.WriteU8('R');
-  big_endian_writer_.WriteU8('E');
-  big_endian_writer_.WriteU8('M');
-  big_endian_writer_.WriteU8('B');
-  big_endian_writer_.WriteU8(1);  // Number of SSRCs.
-  big_endian_writer_.WriteU8(1);  // BR Exp.
-  //  BR Mantissa.
-  big_endian_writer_.WriteU16(static_cast<uint16>(kTestRembBitrate / 2));
-  big_endian_writer_.WriteU32(media_ssrc);
-}
-
-void TestRtcpPacketBuilder::AddCast(uint32 sender_ssrc,
-                                    uint32 media_ssrc,
-                                    base::TimeDelta target_delay) {
-  AddRtcpHeader(206, 15);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU32(media_ssrc);
-  big_endian_writer_.WriteU8('C');
-  big_endian_writer_.WriteU8('A');
-  big_endian_writer_.WriteU8('S');
-  big_endian_writer_.WriteU8('T');
-  big_endian_writer_.WriteU8(kAckFrameId);
-  big_endian_writer_.WriteU8(3);     // Loss fields.
-  big_endian_writer_.WriteU16(target_delay.InMilliseconds());
-  big_endian_writer_.WriteU8(kLostFrameId);
-  big_endian_writer_.WriteU16(kRtcpCastAllPacketsLost);
-  big_endian_writer_.WriteU8(0);  // Lost packet id mask.
-  big_endian_writer_.WriteU8(kFrameIdWithLostPackets);
-  big_endian_writer_.WriteU16(kLostPacketId1);
-  big_endian_writer_.WriteU8(0x2);  // Lost packet id mask.
-  big_endian_writer_.WriteU8(kFrameIdWithLostPackets);
-  big_endian_writer_.WriteU16(kLostPacketId3);
-  big_endian_writer_.WriteU8(0);  // Lost packet id mask.
-}
-
-void TestRtcpPacketBuilder::AddReceiverLog(uint32 sender_ssrc) {
-  AddRtcpHeader(204, 2);
-  big_endian_writer_.WriteU32(sender_ssrc);
-  big_endian_writer_.WriteU8('C');
-  big_endian_writer_.WriteU8('A');
-  big_endian_writer_.WriteU8('S');
-  big_endian_writer_.WriteU8('T');
-}
-
-void TestRtcpPacketBuilder::AddReceiverFrameLog(uint32 rtp_timestamp,
-                                                int num_events,
-                                                uint32 event_timesamp_base) {
-  big_endian_writer_.WriteU32(rtp_timestamp);
-  big_endian_writer_.WriteU8(static_cast<uint8>(num_events - 1));
-  big_endian_writer_.WriteU8(static_cast<uint8>(event_timesamp_base >> 16));
-  big_endian_writer_.WriteU8(static_cast<uint8>(event_timesamp_base >> 8));
-  big_endian_writer_.WriteU8(static_cast<uint8>(event_timesamp_base));
-}
-
-void TestRtcpPacketBuilder::AddReceiverEventLog(uint16 event_data,
-                                                CastLoggingEvent event,
-                                                uint16 event_timesamp_delta) {
-  big_endian_writer_.WriteU16(event_data);
-  uint8 event_id = ConvertEventTypeToWireFormat(event);
-  uint16 type_and_delta = static_cast<uint16>(event_id) << 12;
-  type_and_delta += event_timesamp_delta & 0x0fff;
-  big_endian_writer_.WriteU16(type_and_delta);
-}
-
-scoped_ptr<media::cast::Packet> TestRtcpPacketBuilder::GetPacket() {
-  PatchLengthField();
-  return scoped_ptr<media::cast::Packet>(
-      new media::cast::Packet(buffer_, buffer_ + Length()));
-}
-
-const uint8* TestRtcpPacketBuilder::Data() {
-  PatchLengthField();
-  return buffer_;
-}
-
-void TestRtcpPacketBuilder::PatchLengthField() {
-  if (ptr_of_length_) {
-    // Back-patch the packet length. The client must have taken
-    // care of proper padding to 32-bit words.
-    int this_packet_length = (big_endian_writer_.ptr() - ptr_of_length_ - 2);
-    DCHECK_EQ(0, this_packet_length % 4)
-        << "Packets must be a multiple of 32 bits long";
-    *ptr_of_length_ = this_packet_length >> 10;
-    *(ptr_of_length_ + 1) = (this_packet_length >> 2) & 0xFF;
-    ptr_of_length_ = NULL;
-  }
-}
-
-// Set the 5-bit value in the 1st byte of the header
-// and the payload type. Set aside room for the length field,
-// and make provision for back-patching it.
-void TestRtcpPacketBuilder::AddRtcpHeader(int payload, int format_or_count) {
-  PatchLengthField();
-  big_endian_writer_.WriteU8(0x80 | (format_or_count & 0x1F));
-  big_endian_writer_.WriteU8(payload);
-  ptr_of_length_ = big_endian_writer_.ptr();
-
-  // Initialize length to "clearly illegal".
-  big_endian_writer_.WriteU16(0xDEAD);
-}
-
-}  // namespace cast
-}  // namespace media