129 lines
4.6 KiB
C++
129 lines
4.6 KiB
C++
/*
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* Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef API_RTP_PACKET_INFO_H_
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#define API_RTP_PACKET_INFO_H_
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#include <cstdint>
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#include <utility>
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#include <vector>
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#include "absl/types/optional.h"
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#include "api/rtp_headers.h"
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#include "api/units/timestamp.h"
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#include "rtc_base/system/rtc_export.h"
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namespace webrtc {
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//
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// Structure to hold information about a received |RtpPacket|. It is primarily
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// used to carry per-packet information from when a packet is received until
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// the information is passed to |SourceTracker|.
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//
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class RTC_EXPORT RtpPacketInfo {
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public:
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RtpPacketInfo();
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RtpPacketInfo(uint32_t ssrc,
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std::vector<uint32_t> csrcs,
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uint32_t rtp_timestamp,
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absl::optional<uint8_t> audio_level,
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absl::optional<AbsoluteCaptureTime> absolute_capture_time,
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Timestamp receive_time);
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RtpPacketInfo(const RTPHeader& rtp_header, Timestamp receive_time);
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// TODO(bugs.webrtc.org/12722): Deprecated, remove once downstream projects
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// are updated.
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RtpPacketInfo(uint32_t ssrc,
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std::vector<uint32_t> csrcs,
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uint32_t rtp_timestamp,
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absl::optional<uint8_t> audio_level,
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absl::optional<AbsoluteCaptureTime> absolute_capture_time,
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int64_t receive_time_ms);
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RtpPacketInfo(const RTPHeader& rtp_header, int64_t receive_time_ms);
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RtpPacketInfo(const RtpPacketInfo& other) = default;
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RtpPacketInfo(RtpPacketInfo&& other) = default;
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RtpPacketInfo& operator=(const RtpPacketInfo& other) = default;
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RtpPacketInfo& operator=(RtpPacketInfo&& other) = default;
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uint32_t ssrc() const { return ssrc_; }
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void set_ssrc(uint32_t value) { ssrc_ = value; }
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const std::vector<uint32_t>& csrcs() const { return csrcs_; }
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void set_csrcs(std::vector<uint32_t> value) { csrcs_ = std::move(value); }
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uint32_t rtp_timestamp() const { return rtp_timestamp_; }
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void set_rtp_timestamp(uint32_t value) { rtp_timestamp_ = value; }
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absl::optional<uint8_t> audio_level() const { return audio_level_; }
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void set_audio_level(absl::optional<uint8_t> value) { audio_level_ = value; }
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const absl::optional<AbsoluteCaptureTime>& absolute_capture_time() const {
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return absolute_capture_time_;
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}
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void set_absolute_capture_time(
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const absl::optional<AbsoluteCaptureTime>& value) {
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absolute_capture_time_ = value;
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}
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const absl::optional<int64_t>& local_capture_clock_offset() const {
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return local_capture_clock_offset_;
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}
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void set_local_capture_clock_offset(const absl::optional<int64_t>& value) {
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local_capture_clock_offset_ = value;
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}
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Timestamp receive_time() const { return receive_time_; }
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void set_receive_time(Timestamp value) { receive_time_ = value; }
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// TODO(bugs.webrtc.org/12722): Deprecated, remove once downstream projects
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// are updated.
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int64_t receive_time_ms() const { return receive_time_.ms(); }
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private:
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// Fields from the RTP header:
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// https://tools.ietf.org/html/rfc3550#section-5.1
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uint32_t ssrc_;
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std::vector<uint32_t> csrcs_;
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uint32_t rtp_timestamp_;
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// Fields from the Audio Level header extension:
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// https://tools.ietf.org/html/rfc6464#section-3
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absl::optional<uint8_t> audio_level_;
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// Fields from the Absolute Capture Time header extension:
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// http://www.webrtc.org/experiments/rtp-hdrext/abs-capture-time
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// To not be confused with |local_capture_clock_offset_|, the
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// |estimated_capture_clock_offset| in |absolute_capture_time_| should
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// represent the clock offset between a remote sender and the capturer, and
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// thus equals to the corresponding values in the received RTP packets,
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// subjected to possible interpolations.
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absl::optional<AbsoluteCaptureTime> absolute_capture_time_;
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// Clock offset against capturer's clock. Should be derived from the estimated
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// capture clock offset defined in the Absolute Capture Time header extension.
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absl::optional<int64_t> local_capture_clock_offset_;
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// Local |webrtc::Clock|-based timestamp of when the packet was received.
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Timestamp receive_time_;
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};
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bool operator==(const RtpPacketInfo& lhs, const RtpPacketInfo& rhs);
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inline bool operator!=(const RtpPacketInfo& lhs, const RtpPacketInfo& rhs) {
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return !(lhs == rhs);
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}
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} // namespace webrtc
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#endif // API_RTP_PACKET_INFO_H_
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