Reporting a more accurate buffered time for the video tag

media/filters/ffmpeg_demuxer.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/command_line.h"
 #include "base/scoped_ptr.h"
 #include "base/stl_util-inl.h"
 #include "base/string_util.h"
 #include "base/time.h"
@@ skipping 317 matching lines @@
   // let FFmpeg demuxer methods to run on.
   size_t last_read_bytes = WaitForRead();
   if (last_read_bytes == DataSource::kReadError) {
     host()->SetError(PIPELINE_ERROR_READ);
 
     // Returns with a negative number to signal an error to FFmpeg.
     read_has_failed_ = true;
     return AVERROR_IO;
   }
   read_position_ += last_read_bytes;
+
+  host()->SetCurrentReadPosition(read_position_);
+
   return last_read_bytes;
 }
 
 bool FFmpegDemuxer::GetPosition(int64* position_out) {
   *position_out = read_position_;
   return true;
 }
 
 bool FFmpegDemuxer::SetPosition(int64 position) {
   DCHECK(data_source_);
@@ skipping 265 matching lines @@
   read_event_.Wait();
   return last_read_bytes_;
 }
 
 void FFmpegDemuxer::SignalReadCompleted(size_t size) {
   last_read_bytes_ = size;
   read_event_.Signal();
 }
 
 }  // namespace media