mirror of
https://github.com/mii443/libdatachannel.git
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75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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* libdatachannel streamer example
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* Copyright (c) 2020 Filip Klembara (in2core)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; If not, see <http://www.gnu.org/licenses/>.
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*/
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#if RTC_ENABLE_MEDIA
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#include "rtppacketizationconfig.hpp"
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namespace rtc {
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RtpPacketizationConfig::RtpPacketizationConfig(SSRC ssrc, string cname, uint8_t payloadType,
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uint32_t clockRate,
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optional<uint16_t> sequenceNumber,
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optional<uint32_t> timestamp)
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: ssrc(ssrc), cname(cname), payloadType(payloadType), clockRate(clockRate) {
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assert(clockRate > 0);
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srand((unsigned)time(NULL));
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if (sequenceNumber.has_value()) {
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this->sequenceNumber = sequenceNumber.value();
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} else {
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this->sequenceNumber = rand();
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}
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if (timestamp.has_value()) {
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this->timestamp = timestamp.value();
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} else {
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this->timestamp = rand();
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}
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this->_startTimestamp = this->timestamp;
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}
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void RtpPacketizationConfig::setStartTime(double startTime_s, EpochStart epochStart,
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optional<uint32_t> startTimestamp) {
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this->_startTime_s = startTime_s + static_cast<unsigned long long>(epochStart);
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if (startTimestamp.has_value()) {
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this->_startTimestamp = startTimestamp.value();
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timestamp = this->startTimestamp;
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} else {
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this->_startTimestamp = timestamp;
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}
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}
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double RtpPacketizationConfig::getSecondsFromTimestamp(uint32_t timestamp, uint32_t clockRate) {
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return double(timestamp) / double(clockRate);
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}
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double RtpPacketizationConfig::timestampToSeconds(uint32_t timestamp) {
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return RtpPacketizationConfig::getSecondsFromTimestamp(timestamp, clockRate);
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}
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uint32_t RtpPacketizationConfig::getTimestampFromSeconds(double seconds, uint32_t clockRate) {
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return uint32_t(seconds * clockRate);
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}
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uint32_t RtpPacketizationConfig::secondsToTimestamp(double seconds) {
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return RtpPacketizationConfig::getTimestampFromSeconds(seconds, clockRate);
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}
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} // namespace rtc
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#endif /* RTC_ENABLE_MEDIA */
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