diff options
Diffstat (limited to 'webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr.h')
-rw-r--r-- | webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr.h b/webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr.h new file mode 100644 index 0000000000..9af2dedf3f --- /dev/null +++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr.h @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + * + */ + +#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_ +#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_ + +#include <vector> + +#include "webrtc/base/basictypes.h" + +namespace webrtc { +namespace rtcp { + +// DLRR Report Block: Delay since the Last Receiver Report (RFC 3611). +class Dlrr { + public: + struct SubBlock { + // RFC 3611 4.5 + uint32_t ssrc; + uint32_t last_rr; + uint32_t delay_since_last_rr; + }; + + static const uint8_t kBlockType = 5; + static const size_t kMaxNumberOfDlrrItems = 100; + + Dlrr() {} + Dlrr(const Dlrr& other) = default; + ~Dlrr() {} + + Dlrr& operator=(const Dlrr& other) = default; + + // Second parameter is value read from block header, + // i.e. size of block in 32bits excluding block header itself. + bool Parse(const uint8_t* buffer, uint16_t block_length_32bits); + + size_t BlockLength() const; + // Fills buffer with the Dlrr. + // Consumes BlockLength() bytes. + void Create(uint8_t* buffer) const; + + // Max 100 DLRR Items can be added per DLRR report block. + bool WithDlrrItem(uint32_t ssrc, uint32_t last_rr, uint32_t delay_last_rr); + + const std::vector<SubBlock>& sub_blocks() const { return sub_blocks_; } + + private: + static const size_t kBlockHeaderLength = 4; + static const size_t kSubBlockLength = 12; + + std::vector<SubBlock> sub_blocks_; +}; +} // namespace rtcp +} // namespace webrtc +#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_ |