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| 1 /* | 1 /* |
| 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
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| 426 return; // NOT VALID | 426 return; // NOT VALID |
| 427 | 427 |
| 428 RtcpCommonHeader header; | 428 RtcpCommonHeader header; |
| 429 if (_ptrRTCPDataEnd <= _ptrRTCPDataBegin) | 429 if (_ptrRTCPDataEnd <= _ptrRTCPDataBegin) |
| 430 return; // NOT VALID | 430 return; // NOT VALID |
| 431 | 431 |
| 432 if (!RtcpParseCommonHeader(_ptrRTCPDataBegin, | 432 if (!RtcpParseCommonHeader(_ptrRTCPDataBegin, |
| 433 _ptrRTCPDataEnd - _ptrRTCPDataBegin, &header)) | 433 _ptrRTCPDataEnd - _ptrRTCPDataBegin, &header)) |
| 434 return; // NOT VALID! | 434 return; // NOT VALID! |
| 435 | 435 |
| 436 // * if (!reducedSize) : first packet must be RR or SR. | 436 // * if (!reducedSize) : first packet must be RR or SR. |
| 437 // | 437 // |
| 438 // * The padding bit (P) should be zero for the first packet of a | 438 // * The padding bit (P) should be zero for the first packet of a |
| 439 // compound RTCP packet because padding should only be applied, | 439 // compound RTCP packet because padding should only be applied, |
| 440 // if it is needed, to the last packet. (NOT CHECKED!) | 440 // if it is needed, to the last packet. (NOT CHECKED!) |
| 441 // | 441 // |
| 442 // * The length fields of the individual RTCP packets must add up | 442 // * The length fields of the individual RTCP packets must add up |
| 443 // to the overall length of the compound RTCP packet as | 443 // to the overall length of the compound RTCP packet as |
| 444 // received. This is a fairly strong check. (NOT CHECKED!) | 444 // received. This is a fairly strong check. (NOT CHECKED!) |
| 445 | 445 |
| 446 if (!_RTCPReducedSizeEnable) | 446 if (!_RTCPReducedSizeEnable) { |
| 447 { | 447 if ((header.packet_type != PT_SR) && (header.packet_type != PT_RR)) |
| 448 if ((header.packet_type != PT_SR) && (header.packet_type != PT_RR)) { | 448 return; // NOT VALID |
| 449 return; // NOT VALID | 449 } |
| 450 } | |
| 451 } | |
| 452 | 450 |
| 453 _validPacket = true; | 451 _validPacket = true; |
| 454 } | 452 } |
| 455 | 453 |
| 456 bool | 454 bool |
| 457 RTCPUtility::RTCPParserV2::IsValid() const | 455 RTCPUtility::RTCPParserV2::IsValid() const |
| 458 { | 456 { |
| 459 return _validPacket; | 457 return _validPacket; |
| 460 } | 458 } |
| 461 | 459 |
| 462 void | 460 void |
| 463 RTCPUtility::RTCPParserV2::EndCurrentBlock() | 461 RTCPUtility::RTCPParserV2::EndCurrentBlock() |
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| 1745 const RTCPUtility::RtcpCommonHeader* | 1743 const RTCPUtility::RtcpCommonHeader* |
| 1746 RTCPUtility::RTCPPacketIterator::Current() { | 1744 RTCPUtility::RTCPPacketIterator::Current() { |
| 1747 if (!_ptrBlock) | 1745 if (!_ptrBlock) |
| 1748 { | 1746 { |
| 1749 return NULL; | 1747 return NULL; |
| 1750 } | 1748 } |
| 1751 | 1749 |
| 1752 return &_header; | 1750 return &_header; |
| 1753 } | 1751 } |
| 1754 } // namespace webrtc | 1752 } // namespace webrtc |
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