Checking in basic pipeline interface and stubbed out media::PipelineImpl.

This interface is going to be updated some more in the future, but I'd like to get the basics in first.

Review URL: http://codereview.chromium.org/17299

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8046 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 46 insertions, 0 deletions

diff --git a/media/base/pipeline_impl.h b/media/base/pipeline_impl.h
new file mode 100644
index 0000000..941b5e6
--- /dev/null
+++ b/media/base/pipeline_impl.h
@@ -0,0 +1,46 @@
+// Copyright (c) 2006-2008 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.
+
+// Implementation of Pipeline.
+
+#ifndef MEDIA_BASE_PIPELINE_IMPL_H_
+#define MEDIA_BASE_PIPELINE_IMPL_H_
+
+#include "base/scoped_ptr.h"
+#include "media/base/pipeline.h"
+
+namespace media {
+
+class PipelineImpl : public Pipeline {
+ public:
+  PipelineImpl();
+
+  // Pipeline implementation.
+  virtual bool Initialize(FilterFactoryInterface* filter_factory,
+                          const std::string& uri);
+  virtual bool Play();
+  virtual bool Pause();
+  virtual bool Seek(int64 seek_position);
+  virtual void Shutdown();
+  virtual int64 GetTime() const;
+  virtual int64 GetDuration() const;
+  virtual void SetStateChangedCallback(
+      Callback1<PipelineState>::Type* callback);
+  virtual void SetTimeChangedCallback(Callback1<int64>::Type* callback);
+
+ protected:
+  virtual ~PipelineImpl();
+
+ private:
+  int64 time_;
+  int64 duration_;
+  scoped_ptr<Callback1<PipelineState>::Type> state_changed_callback_;
+  scoped_ptr<Callback1<int64>::Type> time_changed_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(PipelineImpl);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_PIPELINE_IMPL_H_