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优化时间戳修正逻辑

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This commit is contained in:
xiongziliang 2019-08-27 11:34:50 +08:00
parent e7727e7e9b
commit 43608585a1
2 changed files with 6 additions and 17 deletions
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19
src/Rtmp/FlvMuxer.cpp
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@ -76,8 +76,6 @@ void FlvMuxer::start(const EventPoller::Ptr &poller,const RtmpMediaSource::Ptr &
}
void FlvMuxer::onWriteFlvHeader(const RtmpMediaSource::Ptr &mediaSrc) {
CLEAR_ARR(_aui32FirstStamp);
//发送flv文件头
char flv_file_header[] = "FLV\x1\x5\x0\x0\x0\x9"; // have audio and have video
bool is_have_audio = false,is_have_video = false;
@ -158,20 +156,9 @@ void FlvMuxer::onWriteFlvTag(uint8_t ui8Type, const Buffer::Ptr &buffer, uint32_
}
void FlvMuxer::onWriteRtmp(const RtmpPacket::Ptr &pkt) {
auto modifiedStamp = pkt->timeStamp;
auto &firstStamp = _aui32FirstStamp[pkt->typeId % 2];
if(!firstStamp){
firstStamp = modifiedStamp;
}
if(modifiedStamp >= firstStamp){
//计算时间戳增量
modifiedStamp -= firstStamp;
}else{
//发生回环，重新计算时间戳增量
CLEAR_ARR(_aui32FirstStamp);
modifiedStamp = 0;
}
onWriteFlvTag(pkt, modifiedStamp);
int64_t dts_out;
_stamp[pkt->typeId % 2].revise(pkt->timeStamp, 0, dts_out, dts_out);
onWriteFlvTag(pkt, dts_out);
}
void FlvMuxer::stop() {

4
src/Rtmp/FlvMuxer.h
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@ -30,6 +30,7 @@
#include "Rtmp/Rtmp.h"
#include "Rtmp/RtmpMediaSource.h"
#include "Network/Socket.h"
#include "MediaFile/Stamp.h"
using namespace toolkit;
namespace mediakit {
@ -52,7 +53,8 @@ private:
void onWriteFlvTag(uint8_t ui8Type, const Buffer::Ptr &buffer, uint32_t ui32TimeStamp);
private:
RtmpMediaSource::RingType::RingReader::Ptr _ring_reader;
uint32_t _aui32FirstStamp[2] = {0};
//时间戳修整器
Stamp _stamp[2];
};