Implementation of Pipeline and FilterHost interfaces. This is a large change, but all of the objects are interrelated.

I am also checking in a basic unit test that creates pipeline,
and the data source hangs during initialization.  The test sleeps one second and then stops the pipeline.

Andrew has already done a first pass on this, and the code has come largely from our working experimental branch.
Review URL: http://codereview.chromium.org/18546

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8805 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 60 insertions, 0 deletions

diff --git a/media/base/pipeline_impl_unittest.cc b/media/base/pipeline_impl_unittest.cc
new file mode 100644
index 0000000..43a113c
--- /dev/null
+++ b/media/base/pipeline_impl_unittest.cc
@@ -0,0 +1,60 @@
+// Copyright (c) 2006-2009 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 <string>
+
+#include "base/platform_thread.h"
+#include "media/base/pipeline_impl.h"
+#include "media/base/media_format.h"
+#include "media/base/filters.h"
+#include "media/base/factory.h"
+#include "media/base/filter_host.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using media::FilterFactory;
+using media::FilterFactoryCollection;
+using media::FilterHost;
+using media::MediaFormat;
+using media::PipelineImpl;
+using media::TypeFilterFactory;
+
+class TestDataSource : public media::DataSource {
+ public:
+  static bool Create(const MediaFormat* media_format,
+                     TestDataSource** filter_out) {
+    *filter_out = new TestDataSource();
+    return true;
+  }
+  virtual void Stop() {}
+  // This filter will hang in initialization because it never calls
+  // FilterHost::InitializationComplete
+  virtual bool Initialize(const std::string& uri) {
+    return true;
+  }
+  virtual const MediaFormat* GetMediaFormat() {
+    return NULL;  // TODO(ralphl):  Return octot thingie...
+  }
+  virtual size_t Read(char* data, size_t size) {
+    return 0;
+  }
+  virtual bool GetPosition(int64* position_out) {
+    return 0;
+  }
+  virtual bool SetPosition(int64 position) {
+    return true;
+  }
+  virtual bool GetSize(int64* size_out) {
+    return 0;
+  }
+};
+
+TEST(PipelineImplTest, Basic) {
+  std::string uri("test.mov");
+  PipelineImpl pipeline;
+  scoped_refptr<FilterFactoryCollection> f = new FilterFactoryCollection();
+  f->AddFactory(new TypeFilterFactory<TestDataSource>);
+  pipeline.Start(f, uri, NULL);
+  PlatformThread::Sleep(10);
+  pipeline.Stop();
+}