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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "media/cast/rtp_receiver/rtp_receiver.h" | 5 #include "media/cast/rtp_receiver/rtp_receiver.h" |
| 6 | 6 |
| 7 #include "base/big_endian.h" |
| 7 #include "base/logging.h" | 8 #include "base/logging.h" |
| 8 #include "media/cast/rtp_receiver/receiver_stats.h" | 9 #include "media/cast/rtp_receiver/receiver_stats.h" |
| 9 #include "media/cast/rtp_receiver/rtp_parser/rtp_parser.h" | 10 #include "media/cast/rtp_receiver/rtp_parser/rtp_parser.h" |
| 10 #include "media/cast/rtp_receiver/rtp_receiver_defines.h" | 11 #include "media/cast/rtp_receiver/rtp_receiver_defines.h" |
| 11 #include "net/base/big_endian.h" | |
| 12 | 12 |
| 13 namespace media { | 13 namespace media { |
| 14 namespace cast { | 14 namespace cast { |
| 15 | 15 |
| 16 RtpReceiver::RtpReceiver(base::TickClock* clock, | 16 RtpReceiver::RtpReceiver(base::TickClock* clock, |
| 17 const AudioReceiverConfig* audio_config, | 17 const AudioReceiverConfig* audio_config, |
| 18 const VideoReceiverConfig* video_config, | 18 const VideoReceiverConfig* video_config, |
| 19 RtpData* incoming_payload_callback) { | 19 RtpData* incoming_payload_callback) { |
| 20 DCHECK(incoming_payload_callback) << "Invalid argument"; | 20 DCHECK(incoming_payload_callback) << "Invalid argument"; |
| 21 DCHECK(audio_config || video_config) << "Invalid argument"; | 21 DCHECK(audio_config || video_config) << "Invalid argument"; |
| (...skipping 13 matching lines...) Expand all Loading... |
| 35 stats_.reset(new ReceiverStats(clock)); | 35 stats_.reset(new ReceiverStats(clock)); |
| 36 parser_.reset(new RtpParser(incoming_payload_callback, config)); | 36 parser_.reset(new RtpParser(incoming_payload_callback, config)); |
| 37 } | 37 } |
| 38 | 38 |
| 39 RtpReceiver::~RtpReceiver() {} | 39 RtpReceiver::~RtpReceiver() {} |
| 40 | 40 |
| 41 // static | 41 // static |
| 42 uint32 RtpReceiver::GetSsrcOfSender(const uint8* rtcp_buffer, size_t length) { | 42 uint32 RtpReceiver::GetSsrcOfSender(const uint8* rtcp_buffer, size_t length) { |
| 43 DCHECK_GE(length, kMinLengthOfRtp) << "Invalid RTP packet"; | 43 DCHECK_GE(length, kMinLengthOfRtp) << "Invalid RTP packet"; |
| 44 uint32 ssrc_of_sender; | 44 uint32 ssrc_of_sender; |
| 45 net::BigEndianReader big_endian_reader(rtcp_buffer, length); | 45 base::BigEndianReader big_endian_reader( |
| 46 reinterpret_cast<const char*>(rtcp_buffer), length); |
| 46 big_endian_reader.Skip(8); // Skip header | 47 big_endian_reader.Skip(8); // Skip header |
| 47 big_endian_reader.ReadU32(&ssrc_of_sender); | 48 big_endian_reader.ReadU32(&ssrc_of_sender); |
| 48 return ssrc_of_sender; | 49 return ssrc_of_sender; |
| 49 } | 50 } |
| 50 | 51 |
| 51 bool RtpReceiver::ReceivedPacket(const uint8* packet, size_t length) { | 52 bool RtpReceiver::ReceivedPacket(const uint8* packet, size_t length) { |
| 52 RtpCastHeader rtp_header; | 53 RtpCastHeader rtp_header; |
| 53 if (!parser_->ParsePacket(packet, length, &rtp_header)) | 54 if (!parser_->ParsePacket(packet, length, &rtp_header)) |
| 54 return false; | 55 return false; |
| 55 | 56 |
| 56 stats_->UpdateStatistics(rtp_header); | 57 stats_->UpdateStatistics(rtp_header); |
| 57 return true; | 58 return true; |
| 58 } | 59 } |
| 59 | 60 |
| 60 void RtpReceiver::GetStatistics(uint8* fraction_lost, | 61 void RtpReceiver::GetStatistics(uint8* fraction_lost, |
| 61 uint32* cumulative_lost, | 62 uint32* cumulative_lost, |
| 62 uint32* extended_high_sequence_number, | 63 uint32* extended_high_sequence_number, |
| 63 uint32* jitter) { | 64 uint32* jitter) { |
| 64 stats_->GetStatistics( | 65 stats_->GetStatistics( |
| 65 fraction_lost, cumulative_lost, extended_high_sequence_number, jitter); | 66 fraction_lost, cumulative_lost, extended_high_sequence_number, jitter); |
| 66 } | 67 } |
| 67 | 68 |
| 68 } // namespace cast | 69 } // namespace cast |
| 69 } // namespace media | 70 } // namespace media |
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