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/**
* Copyright (c) 2020 Filip Klembara (in2core)
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
#ifndef RTC_RTP_PACKETIZATION_CONFIG_H
#define RTC_RTP_PACKETIZATION_CONFIG_H
#if RTC_ENABLE_MEDIA
#include "dependencydescriptor.hpp"
#include "rtp.hpp"
namespace rtc {
// RTP configuration used in packetization process
class RTC_CPP_EXPORT RtpPacketizationConfig {
public:
SSRC ssrc;
std::string cname;
uint8_t payloadType;
uint32_t clockRate;
uint8_t videoOrientationId;
// current sequence number
uint16_t sequenceNumber;
// current timestamp
uint32_t timestamp;
// start timestamp
uint32_t startTimestamp;
/// Current video orientation
///
/// Bit# 7 6 5 4 3 2 1 0
/// Definition 0 0 0 0 C F R1 R0
///
/// C
/// 0 - Front-facing camera (use this if unsure)
/// 1 - Back-facing camera
///
/// F
/// 0 - No Flip
/// 1 - Horizontal flip
///
/// R1 R0 - CW rotation that receiver must apply
/// 0 - 0 degrees
/// 1 - 90 degrees
/// 2 - 180 degrees
/// 3 - 270 degrees
uint8_t videoOrientation = 0;
// MID Extension Header
uint8_t midId = 0;
optional<std::string> mid;
// RID Extension Header
uint8_t ridId = 0;
optional<std::string> rid;
// Dependency Descriptor Extension Header
uint8_t dependencyDescriptorId = 0;
optional<DependencyDescriptorContext> dependencyDescriptorContext;
// the negotiated ID of the playout delay header extension
// https://webrtc.googlesource.com/src/+/main/docs/native-code/rtp-hdrext/playout-delay/README.md
uint8_t playoutDelayId = 0;
// Minimum/maxiumum playout delay, in 10ms intervals. A value of 10 would equal a 100ms delay
uint16_t playoutDelayMin = 0;
uint16_t playoutDelayMax = 0;
/// Construct RTP configuration used in packetization process
/// @param ssrc SSRC of source
/// @param cname CNAME of source
/// @param payloadType Payload type of source
/// @param clockRate Clock rate of source used in timestamps
/// nullopt)
/// @param videoOrientationId Video orientation (see above)
RtpPacketizationConfig(SSRC ssrc, std::string cname, uint8_t payloadType, uint32_t clockRate,
uint8_t videoOrientationId = 0);
RtpPacketizationConfig(const RtpPacketizationConfig &) = delete;
/// Convert timestamp to seconds
/// @param timestamp Timestamp
/// @param clockRate Clock rate for timestamp calculation
static double getSecondsFromTimestamp(uint32_t timestamp, uint32_t clockRate);
/// Convert timestamp to seconds
/// @param timestamp Timestamp
double timestampToSeconds(uint32_t timestamp);
/// Convert seconds to timestamp
/// @param seconds Number of seconds
/// @param clockRate Clock rate for timestamp calculation
static uint32_t getTimestampFromSeconds(double seconds, uint32_t clockRate);
/// Convert seconds to timestamp
/// @param seconds Number of seconds
uint32_t secondsToTimestamp(double seconds);
};
} // namespace rtc
#endif /* RTC_ENABLE_MEDIA */
#endif /* RTC_RTP_PACKETIZATION_CONFIG_H */