100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
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/**
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* Copyright (c) 2020 Filip Klembara (in2core)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#ifndef RTC_RTP_PACKETIZATION_CONFIG_H
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#define RTC_RTP_PACKETIZATION_CONFIG_H
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#if RTC_ENABLE_MEDIA
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#include "rtp.hpp"
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namespace rtc {
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// RTP configuration used in packetization process
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class RTC_CPP_EXPORT RtpPacketizationConfig {
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public:
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SSRC ssrc;
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std::string cname;
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uint8_t payloadType;
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uint32_t clockRate;
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uint8_t videoOrientationId;
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// current sequence number
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uint16_t sequenceNumber;
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// current timestamp
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uint32_t timestamp;
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// start timestamp
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uint32_t startTimestamp;
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/// Current video orientation
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///
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/// Bit# 7 6 5 4 3 2 1 0
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/// Definition 0 0 0 0 C F R1 R0
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///
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/// C
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/// 0 - Front-facing camera (use this if unsure)
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/// 1 - Back-facing camera
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///
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/// F
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/// 0 - No Flip
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/// 1 - Horizontal flip
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///
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/// R1 R0 - CW rotation that receiver must apply
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/// 0 - 0 degrees
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/// 1 - 90 degrees
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/// 2 - 180 degrees
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/// 3 - 270 degrees
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uint8_t videoOrientation = 0;
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// MID Extension Header
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uint8_t midId = 0;
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optional<std::string> mid;
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// RID Extension Header
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uint8_t ridId = 0;
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optional<std::string> rid;
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/// Construct RTP configuration used in packetization process
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/// @param ssrc SSRC of source
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/// @param cname CNAME of source
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/// @param payloadType Payload type of source
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/// @param clockRate Clock rate of source used in timestamps
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/// nullopt)
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/// @param videoOrientationId Video orientation (see above)
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RtpPacketizationConfig(SSRC ssrc, std::string cname, uint8_t payloadType, uint32_t clockRate,
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uint8_t videoOrientationId = 0);
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RtpPacketizationConfig(const RtpPacketizationConfig &) = delete;
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/// Convert timestamp to seconds
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/// @param timestamp Timestamp
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/// @param clockRate Clock rate for timestamp calculation
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static double getSecondsFromTimestamp(uint32_t timestamp, uint32_t clockRate);
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/// Convert timestamp to seconds
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/// @param timestamp Timestamp
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double timestampToSeconds(uint32_t timestamp);
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/// Convert seconds to timestamp
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/// @param seconds Number of seconds
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/// @param clockRate Clock rate for timestamp calculation
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static uint32_t getTimestampFromSeconds(double seconds, uint32_t clockRate);
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/// Convert seconds to timestamp
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/// @param seconds Number of seconds
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uint32_t secondsToTimestamp(double seconds);
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};
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} // namespace rtc
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#endif /* RTC_ENABLE_MEDIA */
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#endif /* RTC_RTP_PACKETIZATION_CONFIG_H */
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