diff --git a/client/tp-player/bar.cpp b/client/tp-player/bar.cpp
index 32b4a23..ff034ff 100644
--- a/client/tp-player/bar.cpp
+++ b/client/tp-player/bar.cpp
@@ -470,6 +470,8 @@ void Bar::onMousePress(int x, int y, Qt::MouseButton button) {
         // TODO: 暂停播放，按比例计算出点击位置占整个录像时长的百分比，定位到此位置准备播放。
         // TODO: 如果点击的位置是进度条指示标志，则仅暂停播放
         m_owner->pause();
+        m_playing = false;
+        m_owner->update(m_rc.left()+m_rc_btn_play.left(), m_rc.top()+m_rc_btn_play.top(), m_rc_btn_play.width(), m_rc_btn_play.height());
     }
 }
 
@@ -481,6 +483,8 @@ void Bar::onMouseRelease(int x, int y, Qt::MouseButton button) {
         m_progress_pressed = false;
         qDebug("resume at %dms.", m_resume_ms);
         m_owner->resume(true, m_resume_ms);
+        m_playing = true;
+        m_owner->update(m_rc.left()+m_rc_btn_play.left(), m_rc.top()+m_rc_btn_play.top(), m_rc_btn_play.width(), m_rc_btn_play.height());
     }
 }
 
diff --git a/client/tp-player/thr_play.cpp b/client/tp-player/thr_play.cpp
index 254e617..f1d4d22 100644
--- a/client/tp-player/thr_play.cpp
+++ b/client/tp-player/thr_play.cpp
@@ -109,7 +109,10 @@ void ThrPlay::run() {
         uint32_t this_time_ms = dat->get_time();
         uint32_t this_pass_ms = last_time_ms;
         if(this_time_ms > 0) {
-            need_wait_ms = this_time_ms - last_time_ms;
+            if(this_time_ms >= last_time_ms)
+                need_wait_ms = this_time_ms - last_time_ms;
+            else
+                need_wait_ms = 0;
 
             if(need_wait_ms > 0) {
                 uint32_t time_wait = 0;
@@ -177,8 +180,8 @@ void ThrPlay::run() {
 //                }
             }
 
-            last_time_ms = this_time_ms;
         }
+        last_time_ms = this_time_ms;
 
         // 3. 将数据包发送给主UI界面进行显示
         if(dat->data_type() == TYPE_END) {