Fix frame-exact seeking again to stay within duration as opposed to rounding to the closest frame.

media/filters/video_renderer_base.cc

 // Copyright (c) 2010 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 "base/callback.h"
 #include "base/threading/platform_thread.h"
 #include "media/base/buffers.h"
 #include "media/base/callback.h"
 #include "media/base/filter_host.h"
 #include "media/base/limits.h"
@@ skipping 390 matching lines @@
     // transfer out-bounding buffer. We do not flush buffer when Compositor
     // hold reference to our video frame either.
     if (state_ == kFlushing && pending_paint_ == false)
       FlushBuffers();
 
     return;
   }
 
   // Discard frames until we reach our desired seek timestamp.
   if (state_ == kSeeking && !frame->IsEndOfStream() &&
-      (frame->GetTimestamp() + frame->GetDuration() / 2) < seek_timestamp_) {
+      (frame->GetTimestamp() + frame->GetDuration()) <= seek_timestamp_) {
     frames_queue_done_.push_back(frame);
     ScheduleRead_Locked();
   } else {
     frames_queue_ready_.push_back(frame);
     DCHECK_LE(frames_queue_ready_.size(),
               static_cast<size_t>(Limits::kMaxVideoFrames));
     frame_available_.Signal();
   }
 
   // Check for our preroll complete condition.
@@ skipping 119 matching lines @@
     previous_time_ = now;
   }
 
   // Scale our sleep based on the playback rate.
   // TODO(scherkus): floating point badness and degrade gracefully.
   return base::TimeDelta::FromMicroseconds(
       static_cast<int64>(sleep.InMicroseconds() / playback_rate));
 }
 
 }  // namespace media