diff options
Diffstat (limited to 'chromium/media/cast/net/rtp_sender/rtp_sender.cc')
-rw-r--r-- | chromium/media/cast/net/rtp_sender/rtp_sender.cc | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/chromium/media/cast/net/rtp_sender/rtp_sender.cc b/chromium/media/cast/net/rtp_sender/rtp_sender.cc deleted file mode 100644 index 2b017bc1784..00000000000 --- a/chromium/media/cast/net/rtp_sender/rtp_sender.cc +++ /dev/null @@ -1,145 +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/rtp_sender/rtp_sender.h" - -#include "base/logging.h" -#include "base/rand_util.h" -#include "media/cast/cast_defines.h" -#include "media/cast/net/pacing/paced_sender.h" -#include "media/cast/rtcp/rtcp_defines.h" -#include "net/base/big_endian.h" - -namespace media { -namespace cast { - -RtpSender::RtpSender(scoped_refptr<CastEnvironment> cast_environment, - const AudioSenderConfig* audio_config, - const VideoSenderConfig* video_config, - PacedPacketSender* transport) - : cast_environment_(cast_environment), - config_(), - transport_(transport) { - // Store generic cast config and create packetizer config. - DCHECK(audio_config || video_config) << "Invalid argument"; - if (audio_config) { - storage_.reset(new PacketStorage(cast_environment->Clock(), - audio_config->rtp_history_ms)); - config_.audio = true; - config_.ssrc = audio_config->sender_ssrc; - config_.payload_type = audio_config->rtp_payload_type; - config_.frequency = audio_config->frequency; - config_.audio_codec = audio_config->codec; - } else { - storage_.reset(new PacketStorage(cast_environment->Clock(), - video_config->rtp_history_ms)); - config_.audio = false; - config_.ssrc = video_config->sender_ssrc; - config_.payload_type = video_config->rtp_payload_type; - config_.frequency = kVideoFrequency; - config_.video_codec = video_config->codec; - } - // Randomly set start values. - config_.sequence_number = base::RandInt(0, 65535); - config_.rtp_timestamp = base::RandInt(0, 65535); - config_.rtp_timestamp += base::RandInt(0, 65535) << 16; - packetizer_.reset(new RtpPacketizer(transport, storage_.get(), config_)); -} - -RtpSender::~RtpSender() {} - -void RtpSender::IncomingEncodedVideoFrame(const EncodedVideoFrame* video_frame, - const base::TimeTicks& capture_time) { - packetizer_->IncomingEncodedVideoFrame(video_frame, capture_time); -} - -void RtpSender::IncomingEncodedAudioFrame(const EncodedAudioFrame* audio_frame, - const base::TimeTicks& recorded_time) { - packetizer_->IncomingEncodedAudioFrame(audio_frame, recorded_time); -} - -void RtpSender::ResendPackets( - const MissingFramesAndPacketsMap& missing_frames_and_packets) { - // Iterate over all frames in the list. - for (MissingFramesAndPacketsMap::const_iterator it = - missing_frames_and_packets.begin(); - it != missing_frames_and_packets.end(); ++it) { - PacketList packets_to_resend; - uint8 frame_id = it->first; - const PacketIdSet& packets_set = it->second; - bool success = false; - - if (packets_set.empty()) { - VLOG(1) << "Missing all packets in frame " << static_cast<int>(frame_id); - - uint16 packet_id = 0; - do { - // Get packet from storage. - success = storage_->GetPacket(frame_id, packet_id, &packets_to_resend); - - // Resend packet to the network. - if (success) { - VLOG(1) << "Resend " << static_cast<int>(frame_id) - << ":" << packet_id; - // Set a unique incremental sequence number for every packet. - Packet& packet = packets_to_resend.back(); - UpdateSequenceNumber(&packet); - // Set the size as correspond to each frame. - ++packet_id; - } - } while (success); - } else { - // Iterate over all of the packets in the frame. - for (PacketIdSet::const_iterator set_it = packets_set.begin(); - set_it != packets_set.end(); ++set_it) { - uint16 packet_id = *set_it; - success = storage_->GetPacket(frame_id, packet_id, &packets_to_resend); - - // Resend packet to the network. - if (success) { - VLOG(1) << "Resend " << static_cast<int>(frame_id) - << ":" << packet_id; - Packet& packet = packets_to_resend.back(); - UpdateSequenceNumber(&packet); - } - } - } - transport_->ResendPackets(packets_to_resend); - } -} - -void RtpSender::UpdateSequenceNumber(Packet* packet) { - uint16 new_sequence_number = packetizer_->NextSequenceNumber(); - int index = 2; - (*packet)[index] = (static_cast<uint8>(new_sequence_number)); - (*packet)[index + 1] =(static_cast<uint8>(new_sequence_number >> 8)); -} - -void RtpSender::RtpStatistics(const base::TimeTicks& now, - RtcpSenderInfo* sender_info) { - // The timestamp of this Rtcp packet should be estimated as the timestamp of - // the frame being captured at this moment. We are calculating that - // timestamp as the last frame's timestamp + the time since the last frame - // was captured. - uint32 ntp_seconds = 0; - uint32 ntp_fraction = 0; - ConvertTimeTicksToNtp(now, &ntp_seconds, &ntp_fraction); - sender_info->ntp_seconds = ntp_seconds; - sender_info->ntp_fraction = ntp_fraction; - - base::TimeTicks time_sent; - uint32 rtp_timestamp; - if (packetizer_->LastSentTimestamp(&time_sent, &rtp_timestamp)) { - base::TimeDelta time_since_last_send = now - time_sent; - sender_info->rtp_timestamp = rtp_timestamp + - time_since_last_send.InMilliseconds() * (config_.frequency / 1000); - } else { - sender_info->rtp_timestamp = 0; - } - sender_info->send_packet_count = packetizer_->send_packets_count(); - sender_info->send_octet_count = packetizer_->send_octet_count(); -} - -} // namespace cast -} // namespace media |