diff --git a/services/media_engine/plugins/source/http_source/hls/hls_media_downloader.cpp b/services/media_engine/plugins/source/http_source/hls/hls_media_downloader.cpp
index bc458786f521648b47a808d55c034277d8a39e77..e0e439644ea2db1596610ddd9441c78beb1a6ae9 100644
--- a/services/media_engine/plugins/source/http_source/hls/hls_media_downloader.cpp
+++ b/services/media_engine/plugins/source/http_source/hls/hls_media_downloader.cpp
@@ -307,14 +307,13 @@ bool HlsMediaDownloader::SelectBitRate(uint32_t bitRate)
 void HlsMediaDownloader::SeekToTs(int64_t seekTime)
 {
     havePlayedTsNum_ = 0;
-    int64_t totalDuration = 0;
+    double totalDuration = 0;
     isDownloadStarted_ = false;
     playList_->Clear();
     for (const auto &item : backPlayList_) {
-        int64_t hstTime;
-        Sec2HstTime(item.duration_, hstTime);
-        totalDuration += HstTime2Ns(hstTime);
-        if (seekTime >= totalDuration) {
+        double hstTime = item.duration_ * HST_SECOND;
+        totalDuration += hstTime / HST_NSECOND;
+        if (seekTime >= (int64_t)totalDuration) {
             havePlayedTsNum_++;
             continue;
         }
@@ -322,10 +321,10 @@ void HlsMediaDownloader::SeekToTs(int64_t seekTime)
         playInfo.url_ = item.url_;
         playInfo.duration_ = item.duration_;
         int64_t startTimePos = 0;
-        int64_t lastTotalDuration = totalDuration - hstTime;
-        if (lastTotalDuration < seekTime) {
-            startTimePos = seekTime - lastTotalDuration;
-            if (startTimePos > hstTime / 2 && (&item != &backPlayList_.back())) { // 2
+        double lastTotalDuration = totalDuration - hstTime;
+        if ((int64_t)lastTotalDuration < seekTime) {
+            startTimePos = seekTime - (int64_t)lastTotalDuration;
+            if (startTimePos > (int64_t)hstTime / 2 && (&item != &backPlayList_.back())) { // 2
                 havePlayedTsNum_++;
                 continue;
             }
diff --git a/services/media_engine/plugins/source/http_source/hls/hls_playlist_downloader.cpp b/services/media_engine/plugins/source/http_source/hls/hls_playlist_downloader.cpp
index fd3dc72890fbcce19bbad06972fef5a8fa87f7a6..12b7127596de71a1021ad5d97c7c919d19f11af6 100644
--- a/services/media_engine/plugins/source/http_source/hls/hls_playlist_downloader.cpp
+++ b/services/media_engine/plugins/source/http_source/hls/hls_playlist_downloader.cpp
@@ -59,9 +59,7 @@ int64_t HlsPlayListDownloader::GetDuration() const
     if (!master_) {
         return 0;
     }
-    int64_t hstTime;
-    Sec2HstTime(master_->duration_, hstTime);
-    return master_->bLive_ ? -1.0 : (HstTime2Ns(hstTime)); // -1.0
+    return master_->bLive_ ? -1 : ((int64_t)master_->duration_ * HST_SECOND / HST_NSECOND); // -1
 }
 
 Seekable HlsPlayListDownloader::GetSeekable() const