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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/rtcp/rtcp_receiver.h" | 5 #include "media/cast/net/rtcp/rtcp_receiver.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "media/cast/rtcp/rtcp_utility.h" | 8 #include "media/cast/net/cast_transport_defines.h" |
| 9 #include "media/cast/transport/cast_transport_defines.h" | 9 #include "media/cast/net/rtcp/rtcp_utility.h" |
| 10 | 10 |
| 11 namespace { | 11 namespace { |
| 12 | 12 |
| 13 // A receiver frame event is identified by frame RTP timestamp, event timestamp | 13 // A receiver frame event is identified by frame RTP timestamp, event timestamp |
| 14 // and event type. | 14 // and event type. |
| 15 // A receiver packet event is identified by all of the above plus packet id. | 15 // A receiver packet event is identified by all of the above plus packet id. |
| 16 // The key format is as follows: | 16 // The key format is as follows: |
| 17 // First uint64: | 17 // First uint64: |
| 18 // bits 0-11: zeroes (unused). | 18 // bits 0-11: zeroes (unused). |
| 19 // bits 12-15: event type ID. | 19 // bits 12-15: event type ID. |
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| 128 const RtcpField& rtcp_field = rtcp_parser->Field(); | 128 const RtcpField& rtcp_field = rtcp_parser->Field(); |
| 129 | 129 |
| 130 DCHECK(rtcp_field_type == kRtcpSrCode) << "Invalid state"; | 130 DCHECK(rtcp_field_type == kRtcpSrCode) << "Invalid state"; |
| 131 | 131 |
| 132 // Synchronization source identifier for the originator of this SR packet. | 132 // Synchronization source identifier for the originator of this SR packet. |
| 133 uint32 remote_ssrc = rtcp_field.sender_report.sender_ssrc; | 133 uint32 remote_ssrc = rtcp_field.sender_report.sender_ssrc; |
| 134 | 134 |
| 135 VLOG(2) << "Cast RTCP received SR from SSRC " << remote_ssrc; | 135 VLOG(2) << "Cast RTCP received SR from SSRC " << remote_ssrc; |
| 136 | 136 |
| 137 if (remote_ssrc_ == remote_ssrc) { | 137 if (remote_ssrc_ == remote_ssrc) { |
| 138 transport::RtcpSenderInfo remote_sender_info; | 138 RtcpSenderInfo remote_sender_info; |
| 139 remote_sender_info.ntp_seconds = | 139 remote_sender_info.ntp_seconds = |
| 140 rtcp_field.sender_report.ntp_most_significant; | 140 rtcp_field.sender_report.ntp_most_significant; |
| 141 remote_sender_info.ntp_fraction = | 141 remote_sender_info.ntp_fraction = |
| 142 rtcp_field.sender_report.ntp_least_significant; | 142 rtcp_field.sender_report.ntp_least_significant; |
| 143 remote_sender_info.rtp_timestamp = rtcp_field.sender_report.rtp_timestamp; | 143 remote_sender_info.rtp_timestamp = rtcp_field.sender_report.rtp_timestamp; |
| 144 remote_sender_info.send_packet_count = | 144 remote_sender_info.send_packet_count = |
| 145 rtcp_field.sender_report.sender_packet_count; | 145 rtcp_field.sender_report.sender_packet_count; |
| 146 remote_sender_info.send_octet_count = | 146 remote_sender_info.send_octet_count = |
| 147 rtcp_field.sender_report.sender_octet_count; | 147 rtcp_field.sender_report.sender_octet_count; |
| 148 if (receiver_feedback_) { | 148 if (receiver_feedback_) { |
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| 186 | 186 |
| 187 const RtcpFieldReportBlockItem& rb = rtcp_field->report_block_item; | 187 const RtcpFieldReportBlockItem& rb = rtcp_field->report_block_item; |
| 188 | 188 |
| 189 // Filter out all report blocks that are not for us. | 189 // Filter out all report blocks that are not for us. |
| 190 if (rb.ssrc != ssrc_) { | 190 if (rb.ssrc != ssrc_) { |
| 191 // This block is not for us ignore it. | 191 // This block is not for us ignore it. |
| 192 return; | 192 return; |
| 193 } | 193 } |
| 194 VLOG(2) << "Cast RTCP received RB from SSRC " << remote_ssrc; | 194 VLOG(2) << "Cast RTCP received RB from SSRC " << remote_ssrc; |
| 195 | 195 |
| 196 transport::RtcpReportBlock report_block; | 196 RtcpReportBlock report_block; |
| 197 report_block.remote_ssrc = remote_ssrc; | 197 report_block.remote_ssrc = remote_ssrc; |
| 198 report_block.media_ssrc = rb.ssrc; | 198 report_block.media_ssrc = rb.ssrc; |
| 199 report_block.fraction_lost = rb.fraction_lost; | 199 report_block.fraction_lost = rb.fraction_lost; |
| 200 report_block.cumulative_lost = rb.cumulative_number_of_packets_lost; | 200 report_block.cumulative_lost = rb.cumulative_number_of_packets_lost; |
| 201 report_block.extended_high_sequence_number = | 201 report_block.extended_high_sequence_number = |
| 202 rb.extended_highest_sequence_number; | 202 rb.extended_highest_sequence_number; |
| 203 report_block.jitter = rb.jitter; | 203 report_block.jitter = rb.jitter; |
| 204 report_block.last_sr = rb.last_sender_report; | 204 report_block.last_sr = rb.last_sender_report; |
| 205 report_block.delay_since_last_sr = rb.delay_last_sender_report; | 205 report_block.delay_since_last_sr = rb.delay_last_sender_report; |
| 206 | 206 |
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| 555 void RtcpReceiver::HandleFIRItem(const RtcpField* rtcp_field) { | 555 void RtcpReceiver::HandleFIRItem(const RtcpField* rtcp_field) { |
| 556 // Is it our sender that is requested to generate a new keyframe. | 556 // Is it our sender that is requested to generate a new keyframe. |
| 557 if (ssrc_ != rtcp_field->fir_item.ssrc) | 557 if (ssrc_ != rtcp_field->fir_item.ssrc) |
| 558 return; | 558 return; |
| 559 | 559 |
| 560 VLOG(2) << "Cast RTCP received FIR on our SSRC " << ssrc_; | 560 VLOG(2) << "Cast RTCP received FIR on our SSRC " << ssrc_; |
| 561 } | 561 } |
| 562 | 562 |
| 563 } // namespace cast | 563 } // namespace cast |
| 564 } // namespace media | 564 } // namespace media |
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