Cast: move net->transport

media/cast/net/rtcp/rtcp_builder.cc

Index: media/cast/net/rtcp/rtcp_builder.cc
diff --git a/media/cast/net/rtcp/rtcp_builder.cc b/media/cast/net/rtcp/rtcp_builder.cc
deleted file mode 100644
index 6555c58350c28737c29b15d576f388946d077d62..0000000000000000000000000000000000000000
--- a/media/cast/net/rtcp/rtcp_builder.cc
+++ /dev/null
@@ -1,265 +0,0 @@
-// 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/net/rtcp/rtcp_builder.h"
-
-#include <algorithm>
-#include <string>
-#include <vector>
-
-#include "base/logging.h"
-#include "media/cast/net/cast_net_defines.h"
-#include "media/cast/net/pacing/paced_sender.h"
-#include "media/cast/rtcp/rtcp_utility.h"
-#include "net/base/big_endian.h"
-
-static const size_t kRtcpCastLogHeaderSize = 12;
-static const size_t kRtcpSenderFrameLogSize = 4;
-static const size_t kRtcpReceiverFrameLogSize = 8;
-static const size_t kRtcpReceiverEventLogSize = 4;
-
-namespace media {
-namespace cast {
-
-RtcpBuilder::RtcpBuilder(PacedPacketSender* outgoing_transport,
-                             uint32 sending_ssrc,
-                             const std::string& c_name)
-     : ssrc_(sending_ssrc),
-       c_name_(c_name),
-       transport_(outgoing_transport) {
-  DCHECK_LT(c_name_.length(), kRtcpCnameSize) << "Invalid config";
-}
-
-RtcpBuilder::~RtcpBuilder() {}
-
-void RtcpBuilder::SendRtcpFromRtpSender(uint32 packet_type_flags,
-                                          const RtcpSenderInfo* sender_info,
-                                          const RtcpDlrrReportBlock* dlrr,
-                                          RtcpSenderLogMessage* sender_log) {
-  if (packet_type_flags & kRtcpRr ||
-      packet_type_flags & kRtcpPli ||
-      packet_type_flags & kRtcpRrtr ||
-      packet_type_flags & kRtcpCast ||
-      packet_type_flags & kRtcpReceiverLog ||
-      packet_type_flags & kRtcpRpsi ||
-      packet_type_flags & kRtcpRemb ||
-      packet_type_flags & kRtcpNack) {
-    NOTREACHED() << "Invalid argument";
-  }
-
-  std::vector<uint8> packet;
-  packet.reserve(kIpPacketSize);
-  if (packet_type_flags & kRtcpSr) {
-    DCHECK(sender_info) << "Invalid argument";
-    BuildSR(*sender_info, NULL, &packet);
-    BuildSdec(&packet);
-  }
-  if (packet_type_flags & kRtcpBye) {
-    BuildBye(&packet);
-  }
-  if (packet_type_flags & kRtcpDlrr) {
-    DCHECK(dlrr) << "Invalid argument";
-    BuildDlrrRb(dlrr, &packet);
-  }
-  if (packet_type_flags & kRtcpSenderLog) {
-    DCHECK(sender_log) << "Invalid argument";
-    BuildSenderLog(sender_log, &packet);
-  }
-  if (packet.empty())
-    return;  // Sanity don't send empty packets.
-
-  transport_->SendRtcpPacket(packet);
-}
-
-void RtcpBuilder::BuildSR(const RtcpSenderInfo& sender_info,
-                            const RtcpReportBlock* report_block,
-                            std::vector<uint8>* packet) const {
-  // Sender report.
-  size_t start_size = packet->size();
-  DCHECK_LT(start_size + 52, kIpPacketSize) << "Not enough buffer space";
-  if (start_size + 52 > kIpPacketSize) return;
-
-  uint16 number_of_rows = (report_block) ? 12 : 6;
-  packet->resize(start_size + 28);
-
-  net::BigEndianWriter big_endian_writer(&((*packet)[start_size]), 28);
-  big_endian_writer.WriteU8(0x80 + (report_block ? 1 : 0));
-  big_endian_writer.WriteU8(kPacketTypeSenderReport);
-  big_endian_writer.WriteU16(number_of_rows);
-  big_endian_writer.WriteU32(ssrc_);
-  big_endian_writer.WriteU32(sender_info.ntp_seconds);
-  big_endian_writer.WriteU32(sender_info.ntp_fraction);
-  big_endian_writer.WriteU32(sender_info.rtp_timestamp);
-  big_endian_writer.WriteU32(sender_info.send_packet_count);
-  big_endian_writer.WriteU32(static_cast<uint32>(sender_info.send_octet_count));
-
-  if (report_block) {
-    AddReportBlocks(*report_block, packet);  // Adds 24 bytes.
-  }
-}
-
-void RtcpBuilder::AddReportBlocks(const RtcpReportBlock& report_block,
-                                    std::vector<uint8>* packet) const {
-  size_t start_size = packet->size();
-  DCHECK_LT(start_size + 24, kIpPacketSize) << "Not enough buffer space";
-  if (start_size + 24 > kIpPacketSize) return;
-
-  packet->resize(start_size + 24);
-
-  net::BigEndianWriter big_endian_writer(&((*packet)[start_size]), 24);
-  big_endian_writer.WriteU32(report_block.media_ssrc);
-  big_endian_writer.WriteU8(report_block.fraction_lost);
-  big_endian_writer.WriteU8(report_block.cumulative_lost >> 16);
-  big_endian_writer.WriteU8(report_block.cumulative_lost >> 8);
-  big_endian_writer.WriteU8(report_block.cumulative_lost);
-
-  // Extended highest seq_no, contain the highest sequence number received.
-  big_endian_writer.WriteU32(report_block.extended_high_sequence_number);
-  big_endian_writer.WriteU32(report_block.jitter);
-
-  // Last SR timestamp; our NTP time when we received the last report.
-  // This is the value that we read from the send report packet not when we
-  // received it.
-  big_endian_writer.WriteU32(report_block.last_sr);
-
-  // Delay since last received report, time since we received the report.
-  big_endian_writer.WriteU32(report_block.delay_since_last_sr);
-}
-
-void RtcpBuilder::BuildSdec(std::vector<uint8>* packet) const {
-  size_t start_size = packet->size();
-  DCHECK_LT(start_size +  12 + c_name_.length(), kIpPacketSize)
-      << "Not enough buffer space";
-  if (start_size + 12 > kIpPacketSize) return;
-
-  // SDES Source Description.
-  packet->resize(start_size + 10);
-
-  net::BigEndianWriter big_endian_writer(&((*packet)[start_size]), 10);
-  // We always need to add one SDES CNAME.
-  big_endian_writer.WriteU8(0x80 + 1);
-  big_endian_writer.WriteU8(kPacketTypeSdes);
-
-  // Handle SDES length later on.
-  uint32 sdes_length_position = static_cast<uint32>(start_size) + 3;
-  big_endian_writer.WriteU16(0);
-  big_endian_writer.WriteU32(ssrc_);  // Add our own SSRC.
-  big_endian_writer.WriteU8(1);  // CNAME = 1
-  big_endian_writer.WriteU8(static_cast<uint8>(c_name_.length()));
-
-  size_t sdes_length = 10 + c_name_.length();
-  packet->insert(packet->end(), c_name_.c_str(),
-                 c_name_.c_str() + c_name_.length());
-
-  size_t padding = 0;
-
-  // We must have a zero field even if we have an even multiple of 4 bytes.
-  if ((packet->size() % 4) == 0) {
-    padding++;
-    packet->push_back(0);
-  }
-  while ((packet->size() % 4) != 0) {
-    padding++;
-    packet->push_back(0);
-  }
-  sdes_length += padding;
-
-  // In 32-bit words minus one and we don't count the header.
-  uint8 buffer_length = static_cast<uint8>((sdes_length / 4) - 1);
-  (*packet)[sdes_length_position] = buffer_length;
-}
-
-void RtcpBuilder::BuildBye(std::vector<uint8>* packet) const {
-  size_t start_size = packet->size();
-  DCHECK_LT(start_size + 8, kIpPacketSize) << "Not enough buffer space";
-  if (start_size + 8 > kIpPacketSize) return;
-
-  packet->resize(start_size + 8);
-
-  net::BigEndianWriter big_endian_writer(&((*packet)[start_size]), 8);
-  big_endian_writer.WriteU8(0x80 + 1);
-  big_endian_writer.WriteU8(kPacketTypeBye);
-  big_endian_writer.WriteU16(1);  // Length.
-  big_endian_writer.WriteU32(ssrc_);  // Add our own SSRC.
-}
-
-/*
-   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
-  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-  |V=2|P|reserved |   PT=XR=207   |             length            |
-  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-  |                              SSRC                             |
-  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-  |     BT=5      |   reserved    |         block length          |
-  +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
-  |                 SSRC_1 (SSRC of first receiver)               | sub-
-  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ block
-  |                         last RR (LRR)                         |   1
-  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-  |                   delay since last RR (DLRR)                  |
-  +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
-*/
-void RtcpBuilder::BuildDlrrRb(const RtcpDlrrReportBlock* dlrr,
-                                std::vector<uint8>* packet) const {
-  size_t start_size = packet->size();
-  DCHECK_LT(start_size + 24, kIpPacketSize) << "Not enough buffer space";
-  if (start_size + 24 > kIpPacketSize) return;
-
-  packet->resize(start_size + 24);
-
-  net::BigEndianWriter big_endian_writer(&((*packet)[start_size]), 24);
-  big_endian_writer.WriteU8(0x80);
-  big_endian_writer.WriteU8(kPacketTypeXr);
-  big_endian_writer.WriteU16(5);  // Length.
-  big_endian_writer.WriteU32(ssrc_);  // Add our own SSRC.
-  big_endian_writer.WriteU8(5);  // Add block type.
-  big_endian_writer.WriteU8(0);  // Add reserved.
-  big_endian_writer.WriteU16(3);  // Block length.
-  big_endian_writer.WriteU32(ssrc_);  // Add the media (received RTP) SSRC.
-  big_endian_writer.WriteU32(dlrr->last_rr);
-  big_endian_writer.WriteU32(dlrr->delay_since_last_rr);
-}
-
-void RtcpBuilder::BuildSenderLog(RtcpSenderLogMessage* sender_log_message,
-                                   std::vector<uint8>* packet) const {
-  DCHECK(sender_log_message);
-  DCHECK(packet);
-  size_t start_size = packet->size();
-  size_t remaining_space = kIpPacketSize - start_size;
-  DCHECK_GE(remaining_space, kRtcpCastLogHeaderSize + kRtcpSenderFrameLogSize)
-       << "Not enough buffer space";
-  if (remaining_space < kRtcpCastLogHeaderSize + kRtcpSenderFrameLogSize)
-    return;
-
-  size_t space_for_x_messages =
-      (remaining_space - kRtcpCastLogHeaderSize) / kRtcpSenderFrameLogSize;
-  size_t number_of_messages = std::min(space_for_x_messages,
-                                       sender_log_message->size());
-
-  size_t log_size = kRtcpCastLogHeaderSize +
-      number_of_messages * kRtcpSenderFrameLogSize;
-  packet->resize(start_size + log_size);
-
-  net::BigEndianWriter big_endian_writer(&((*packet)[start_size]), log_size);
-  big_endian_writer.WriteU8(0x80 + kSenderLogSubtype);
-  big_endian_writer.WriteU8(kPacketTypeApplicationDefined);
-  big_endian_writer.WriteU16(static_cast<uint16>(2 + number_of_messages));
-  big_endian_writer.WriteU32(ssrc_);  // Add our own SSRC.
-  big_endian_writer.WriteU32(kCast);
-
-  for (; number_of_messages > 0; --number_of_messages) {
-    DCHECK(!sender_log_message->empty());
-    const RtcpSenderFrameLogMessage& message = sender_log_message->front();
-    big_endian_writer.WriteU8(static_cast<uint8>(message.frame_status));
-    // We send the 24 east significant bits of the RTP timestamp.
-    big_endian_writer.WriteU8(static_cast<uint8>(message.rtp_timestamp >> 16));
-    big_endian_writer.WriteU8(static_cast<uint8>(message.rtp_timestamp >> 8));
-    big_endian_writer.WriteU8(static_cast<uint8>(message.rtp_timestamp));
-    sender_log_message->pop_front();
-  }
-}
-
-}  // namespace cast
-}  // namespace media