Ignore seek operations to the current time in pause state

media/blink/webmediaplayer_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/blink/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 #include <vector>
@@ skipping 319 matching lines @@
     pending_seek_ = true;
     pending_seek_seconds_ = seconds;
     if (chunk_demuxer_)
       chunk_demuxer_->CancelPendingSeek(seek_time);
     return;
   }
 
   media_log_->AddEvent(media_log_->CreateSeekEvent(seconds));
 
   // Update our paused time.
-  if (paused_)
-    paused_time_ = seek_time;
+  // In paused state ignore the seek operations to current time and generate
+  // buffer state change event to eventually fire seeking and seeked events
+  if (paused_) {
+    if (paused_time_ != seek_time) {
+      paused_time_ = seek_time;
+    } else {
+      main_task_runner_->PostTask(
+          FROM_HERE,
+          base::Bind(&WebMediaPlayerImpl::OnPipelineBufferingStateChanged,
+                     AsWeakPtr(),
+                     BUFFERING_HAVE_ENOUGH));
+      return;
+    }
+  }
 
   seeking_ = true;
 
   if (chunk_demuxer_)
     chunk_demuxer_->StartWaitingForSeek(seek_time);
 
   // Kick off the asynchronous seek!
   pipeline_.Seek(
       seek_time,
       BIND_TO_RENDER_LOOP1(&WebMediaPlayerImpl::OnPipelineSeeked, true));
@@ skipping 674 matching lines @@
   compositor_task_runner_->PostTask(FROM_HERE,
                                     base::Bind(&GetCurrentFrameAndSignal,
                                                base::Unretained(compositor_),
                                                &video_frame,
                                                &event));
   event.Wait();
   return video_frame;
 }
 
 }  // namespace media