Adds fake hardware video encoder.

media/video/fake_video_encode_accelerator.h

 // Copyright 2014 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.
 
-#ifndef MEDIA_CAST_TEST_FAKE_MOCK_VIDEO_ENCODE_ACCELERATOR_H_
-#define MEDIA_CAST_TEST_FAKE_MOCK_VIDEO_ENCODE_ACCELERATOR_H_
-
-#include "media/video/video_encode_accelerator.h"
+#ifndef MEDIA_VIDEO_FAKE_VIDEO_ENCODE_ACCELERATOR_H_
+#define MEDIA_VIDEO_FAKE_VIDEO_ENCODE_ACCELERATOR_H_
 
 #include <list>
+#include <queue>
 #include <vector>
 
 #include "base/memory/weak_ptr.h"
 #include "media/base/bitstream_buffer.h"
+#include "media/base/media_export.h"
+#include "media/video/video_encode_accelerator.h"
 
 namespace base {
+
 class SingleThreadTaskRunner;
+
 }  // namespace base
 
 namespace media {
-namespace cast {
-namespace test {
 
-class FakeVideoEncodeAccelerator : public VideoEncodeAccelerator {
+class MEDIA_EXPORT FakeVideoEncodeAccelerator : public VideoEncodeAccelerator {
  public:
   explicit FakeVideoEncodeAccelerator(
-      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
-      std::vector<uint32>* stored_bitrates);
+      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
   ~FakeVideoEncodeAccelerator() override;
 
   std::vector<VideoEncodeAccelerator::SupportedProfile> GetSupportedProfiles()
       override;
-  bool Initialize(media::VideoFrame::Format input_format,
+  bool Initialize(VideoFrame::Format input_format,
                   const gfx::Size& input_visible_size,
                   VideoCodecProfile output_profile,
                   uint32 initial_bitrate,
                   Client* client) override;
-
   void Encode(const scoped_refptr<VideoFrame>& frame,
               bool force_keyframe) override;
-
   void UseOutputBitstreamBuffer(const BitstreamBuffer& buffer) override;
-
   void RequestEncodingParametersChange(uint32 bitrate,
                                        uint32 framerate) override;
-
   void Destroy() override;
 
+  const std::vector<uint32>& stored_bitrates() const {
+    return stored_bitrates_;
+  }
   void SendDummyFrameForTesting(bool key_frame);
-  void SetWillInitializationSucceed(bool will_initialization_succeed) {
-    will_initialization_succeed_ = will_initialization_succeed;
-  }
+  void SetWillInitializationSucceed(bool will_initialization_succeed);
 
  private:
   void DoRequireBitstreamBuffers(unsigned int input_count,
                                  const gfx::Size& input_coded_size,
                                  size_t output_buffer_size) const;
+  void EncodeTask();
   void DoBitstreamBufferReady(int32 bitstream_buffer_id,
                               size_t payload_size,
                               bool key_frame) const;
 
+  // Our original (constructor) calling message loop used for all tasks.
   const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-  std::vector<uint32>* const stored_bitrates_;
-  VideoEncodeAccelerator::Client* client_;
-  bool first_;
+  std::vector<uint32> stored_bitrates_;
   bool will_initialization_succeed_;
 
-  std::list<int32> available_buffer_ids_;
+  VideoEncodeAccelerator::Client* client_;
+
+  // Keeps track of if the current frame is the first encoded frame. This
+  // is used to force a fake key frame for the first encoded frame.
+  bool next_frame_is_first_frame_;
+
+  // A queue containing the necessary data for incoming frames. The boolean
+  // represent whether the queued frame should force a key frame.
+  std::queue<bool> queued_frames_;
+
+  // A list of buffers available for putting fake encoded frames in.
+  std::list<BitstreamBuffer> available_buffers_;
 
   base::WeakPtrFactory<FakeVideoEncodeAccelerator> weak_this_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeVideoEncodeAccelerator);
 };
 
-}  // namespace test
-}  // namespace cast
 }  // namespace media
 
-#endif  // MEDIA_CAST_TEST_FAKE_MOCK_VIDEO_ENCODE_ACCELERATOR_H_
+#endif  // MEDIA_VIDEO_FAKE_VIDEO_ENCODE_ACCELERATOR_H_