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支持修正时间戳

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This commit is contained in:
xiongziliang 2019-08-06 22:54:37 +08:00
parent 749fb98439
commit b70d6cd2c2
2 changed files with 12 additions and 4 deletions
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9
src/MediaFile/Stamp.cpp
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@ -33,6 +33,12 @@ void Stamp::revise(uint32_t dts, uint32_t pts, int64_t &dts_out, int64_t &pts_ou
//记录第一次时间戳，后面好计算时间戳增量
_start_dts = dts;
_first = false;
_ticker = std::make_shared<SmoothTicker>();
}
//pts和dts的差值
int pts_dts_diff = pts - dts;
if(_modifyStamp){
dts = _ticker->elapsedTime();
}
//相对时间戳
@ -58,8 +64,7 @@ void Stamp::revise(uint32_t dts, uint32_t pts, int64_t &dts_out, int64_t &pts_ou
//没有播放时间戳
pts = dts;
}
//pts和dts的差值
int pts_dts_diff = pts - dts;
if(pts_dts_diff > 200 || pts_dts_diff < -200){
//如果差值大于200毫秒，则认为由于回环导致时间戳错乱了
pts_dts_diff = 0;

7
src/MediaFile/Stamp.h
View File

@ -27,20 +27,23 @@
#ifndef ZLMEDIAKIT_STAMP_H
#define ZLMEDIAKIT_STAMP_H
#include "Util/TimeTicker.h"
#include <cstdint>
using namespace toolkit;
namespace mediakit {
class Stamp {
public:
Stamp() = default;
Stamp(bool modifyStamp = false) {_modifyStamp = modifyStamp;};
~Stamp() = default;
void revise(uint32_t dts, uint32_t pts, int64_t &dts_out, int64_t &pts_out);
private:
int64_t _start_dts = 0;
int64_t _dts_inc = 0;
bool _first = true;
bool _modifyStamp;
std::shared_ptr<SmoothTicker> _ticker;
};
}//namespace mediakit