aunix/ZLMediaKit
1
0
Fork 0
mirror of https://gitee.com/xia-chu/ZLMediaKit.git synced 2026-05-21 09:07:49 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

再优化dts获取

Browse Source
This commit is contained in:
xiongziliang 2020-04-29 18:19:51 +08:00
parent 9d9f6e304e
commit 1067c5a2d3
1 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/Common/Stamp.cpp
View File

@ -91,7 +91,6 @@ int64_t Stamp::getRelativeStamp() const {
return _relativeStamp; return _relativeStamp;
} }
bool DtsGenerator::getDts(uint32_t pts, uint32_t &dts){ bool DtsGenerator::getDts(uint32_t pts, uint32_t &dts){
bool ret = false; bool ret = false;
if (pts == _last_pts) { if (pts == _last_pts) {
@ -100,18 +99,21 @@ bool DtsGenerator::getDts(uint32_t pts, uint32_t &dts){
dts = _last_dts; dts = _last_dts;
ret = true; ret = true;
} }
return ret; } else {
} //pts变了，尝试计算dts
ret = getDts_l(pts, dts); ret = getDts_l(pts, dts);
if (ret) { if (ret) {
//获取到了dts，保存本次结果 //获取到了dts，保存本次结果
_last_dts = dts; _last_dts = dts;
}else{ }
}
if (!ret) {
//pts排序列队长度还不知道，也就是不知道有没有B帧， //pts排序列队长度还不知道，也就是不知道有没有B帧，
//那么先强制dts == pts，这样可能导致有B帧的情况下，起始画面有几帧回退 //那么先强制dts == pts，这样可能导致有B帧的情况下，起始画面有几帧回退
dts = pts; dts = pts;
} }
//记录上次pts //记录上次pts
_last_pts = pts; _last_pts = pts;
return ret; return ret;