mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-25 20:27:34 +08:00
90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
#ifndef ZLMEDIAKIT_SRT_COMMON_H
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#define ZLMEDIAKIT_SRT_COMMON_H
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#include <chrono>
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namespace SRT
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{
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using SteadyClock = std::chrono::steady_clock;
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using TimePoint = std::chrono::time_point<SteadyClock>;
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using Microseconds = std::chrono::microseconds;
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using Milliseconds = std::chrono::milliseconds;
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inline int64_t DurationCountMicroseconds( SteadyClock::duration dur){
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return std::chrono::duration_cast<std::chrono::microseconds>(dur).count();
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}
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inline uint32_t loadUint32(uint8_t *ptr) {
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return ptr[0] << 24 | ptr[1] << 16 | ptr[2] << 8 | ptr[3];
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}
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inline uint16_t loadUint16(uint8_t *ptr) {
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return ptr[0] << 8 | ptr[1];
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}
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inline void storeUint32(uint8_t *buf, uint32_t val) {
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buf[0] = val >> 24;
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buf[1] = (val >> 16) & 0xff;
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buf[2] = (val >> 8) & 0xff;
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buf[3] = val & 0xff;
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}
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inline void storeUint16(uint8_t *buf, uint16_t val) {
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buf[0] = (val >> 8) & 0xff;
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buf[1] = val & 0xff;
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}
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inline void storeUint32LE(uint8_t *buf, uint32_t val) {
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buf[0] = val & 0xff;
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buf[1] = (val >> 8) & 0xff;
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buf[2] = (val >> 16) & 0xff;
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buf[3] = (val >>24) & 0xff;
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}
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inline void storeUint16LE(uint8_t *buf, uint16_t val) {
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buf[0] = val & 0xff;
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buf[1] = (val>>8) & 0xff;
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}
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inline uint32_t srtVersion(int major, int minor, int patch)
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{
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return patch + minor*0x100 + major*0x10000;
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}
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class UTicker {
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public:
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UTicker() {
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_created = _begin = SteadyClock::now();
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}
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~UTicker() {
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}
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/**
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* 获取创建时间，单位微妙
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*/
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int64_t elapsedTime(TimePoint now) const {
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return DurationCountMicroseconds(now - _begin);
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}
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/**
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* 获取上次resetTime后至今的时间，单位毫秒
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*/
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int64_t createdTime(TimePoint now) const {
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return DurationCountMicroseconds(now - _created);
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}
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/**
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* 重置计时器
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*/
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void resetTime(TimePoint now) {
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_begin = now;
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}
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private:
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TimePoint _begin;
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TimePoint _created;
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};
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} // namespace SRT
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#endif //ZLMEDIAKIT_SRT_COMMON_H
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