Revert 169004 - Introduce time-based caching of encoded data to FFmpegDemuxer.

Seeking performance on slow connections regressed too much for my liking:
http://build.chromium.org/f/chromium/perf/linux-release/media_tests_av_perf/report.html?history=50&rev=169043&graph=seek

BUG=160640
Review URL: https://codereview.chromium.org/11316138

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@169076 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 78 deletions

diff --git a/media/base/decoder_buffer_queue.cc b/media/base/decoder_buffer_queue.cc
deleted file mode 100644
index ad91c37..0000000
--- a/media/base/decoder_buffer_queue.cc
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2012 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/base/decoder_buffer_queue.h"
-
-#include "base/logging.h"
-#include "media/base/decoder_buffer.h"
-
-namespace media {
-
-DecoderBufferQueue::DecoderBufferQueue()
-    : earliest_valid_timestamp_(kNoTimestamp()) {
-}
-
-DecoderBufferQueue::~DecoderBufferQueue() {}
-
-void DecoderBufferQueue::Push(const scoped_refptr<DecoderBuffer>& buffer) {
-  CHECK(!buffer->IsEndOfStream());
-
-  queue_.push_back(buffer);
-
-  // TODO(scherkus): FFmpeg returns some packets with no timestamp after
-  // seeking. Fix and turn this into CHECK(). See http://crbug.com/162192
-  if (buffer->GetTimestamp() == kNoTimestamp()) {
-    DVLOG(1) << "Buffer has no timestamp";
-    return;
-  }
-
-  if (earliest_valid_timestamp_ == kNoTimestamp()) {
-    earliest_valid_timestamp_ = buffer->GetTimestamp();
-  }
-
-  if (buffer->GetTimestamp() < earliest_valid_timestamp_) {
-    DVLOG(1)
-        << "Out of order timestamps: "
-        << buffer->GetTimestamp().InMicroseconds()
-        << " vs. "
-        << earliest_valid_timestamp_.InMicroseconds();
-    return;
-  }
-
-  earliest_valid_timestamp_ = buffer->GetTimestamp();
-  in_order_queue_.push_back(buffer);
-}
-
-scoped_refptr<DecoderBuffer> DecoderBufferQueue::Pop() {
-  scoped_refptr<DecoderBuffer> buffer = queue_.front();
-  queue_.pop_front();
-
-  if (!in_order_queue_.empty() &&
-      in_order_queue_.front() == buffer) {
-    in_order_queue_.pop_front();
-  }
-
-  return buffer;
-}
-
-void DecoderBufferQueue::Clear() {
-  queue_.clear();
-  in_order_queue_.clear();
-  earliest_valid_timestamp_ = kNoTimestamp();
-}
-
-bool DecoderBufferQueue::IsEmpty() {
-  return queue_.empty();
-}
-
-base::TimeDelta DecoderBufferQueue::Duration() {
-  if (in_order_queue_.size() < 2)
-    return base::TimeDelta();
-
-  base::TimeDelta start = in_order_queue_.front()->GetTimestamp();
-  base::TimeDelta end = in_order_queue_.back()->GetTimestamp();
-  return end - start;
-}
-
-}  // namespace media