Add media::VideoEncodeAccelerator with WebRTC integration

content/renderer/media/renderer_gpu_video_accelerator_factories.h

 // 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.
 
-#ifndef CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_DECODER_FACTORIES_H_
-#define CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_DECODER_FACTORIES_H_
+#ifndef CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
+#define CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/waitable_event.h"
 #include "content/common/content_export.h"
-#include "media/filters/gpu_video_decoder_factories.h"
+#include "media/filters/gpu_video_accelerator_factories.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/size.h"
 
 namespace base {
 class MessageLoopProxy;
 class WaitableEvent;
 }
 
 namespace content {
 class GpuChannelHost;
 class WebGraphicsContext3DCommandBufferImpl;
 
-// Glue code to expose functionality needed by media::GpuVideoDecoder to
+// Glue code to expose functionality needed by media::GpuVideoAccelerator to
 // RenderViewImpl.  This class is entirely an implementation detail of
 // RenderViewImpl and only has its own header to allow extraction of its
 // implementation from render_view_impl.cc which is already far too large.
 //
 // The public methods of the class can be called from any thread, and are
 // internally trampolined to the appropriate thread.  GPU/GL-related calls go to
 // the constructor-argument loop (the media thread), and shmem-related calls go
 // to the render thread.
-class CONTENT_EXPORT RendererGpuVideoDecoderFactories
-    : public media::GpuVideoDecoderFactories {
+class CONTENT_EXPORT RendererGpuVideoAcceleratorFactories
+    : public media::GpuVideoAcceleratorFactories {
  public:
   // Takes a ref on |gpu_channel_host| and tests |context| for loss before each
   // use.
-  RendererGpuVideoDecoderFactories(
+  RendererGpuVideoAcceleratorFactories(
       GpuChannelHost* gpu_channel_host,
       const scoped_refptr<base::MessageLoopProxy>& message_loop,
       WebGraphicsContext3DCommandBufferImpl* wgc3dcbi);
 
-  // media::GpuVideoDecoderFactories implementation.
-  virtual media::VideoDecodeAccelerator* CreateVideoDecodeAccelerator(
-      media::VideoCodecProfile profile,
-      media::VideoDecodeAccelerator::Client* client) OVERRIDE;
+  // media::GpuVideoAcceleratorFactories implementation.
+  virtual scoped_ptr<media::VideoDecodeAccelerator>
+      CreateVideoDecodeAccelerator(
+          media::VideoCodecProfile profile,
+          media::VideoDecodeAccelerator::Client* client) OVERRIDE;
+  virtual scoped_ptr<media::VideoEncodeAccelerator>
+      CreateVideoEncodeAccelerator(
+          media::VideoEncodeAccelerator::Client* client) OVERRIDE;
   // Creates textures and produces them into mailboxes. Returns a sync point to
   // wait on before using the mailboxes, or 0 on failure.
-  virtual uint32 CreateTextures(
-      int32 count, const gfx::Size& size,
-      std::vector<uint32>* texture_ids,
-      std::vector<gpu::Mailbox>* texture_mailboxes,
-      uint32 texture_target) OVERRIDE;
+  virtual uint32 CreateTextures(int32 count,
+                                const gfx::Size& size,
+                                std::vector<uint32>* texture_ids,
+                                std::vector<gpu::Mailbox>* texture_mailboxes,
+                                uint32 texture_target) OVERRIDE;
   virtual void DeleteTexture(uint32 texture_id) OVERRIDE;
   virtual void WaitSyncPoint(uint32 sync_point) OVERRIDE;
   virtual void ReadPixels(uint32 texture_id,
                           uint32 texture_target,
                           const gfx::Size& size,
                           const SkBitmap& pixels) OVERRIDE;
   virtual base::SharedMemory* CreateSharedMemory(size_t size) OVERRIDE;
   virtual scoped_refptr<base::MessageLoopProxy> GetMessageLoop() OVERRIDE;
   virtual void Abort() OVERRIDE;
   virtual bool IsAborted() OVERRIDE;
-
-  // Makes a copy of |this|.
-  scoped_refptr<media::GpuVideoDecoderFactories> Clone();
+  scoped_refptr<media::GpuVideoAcceleratorFactories> Clone() OVERRIDE;
 
  protected:
-  friend class base::RefCountedThreadSafe<RendererGpuVideoDecoderFactories>;
-  virtual ~RendererGpuVideoDecoderFactories();
+  friend class base::RefCountedThreadSafe<RendererGpuVideoAcceleratorFactories>;
+  virtual ~RendererGpuVideoAcceleratorFactories();
 
  private:
-  RendererGpuVideoDecoderFactories();
+  RendererGpuVideoAcceleratorFactories();
 
   // Helper for the constructor to acquire the ContentGLContext on
   // |message_loop_|.
   void AsyncGetContext(WebGraphicsContext3DCommandBufferImpl* context);
 
   // Async versions of the public methods.  They use output parameters instead
   // of return values and each takes a WaitableEvent* param to signal completion
   // (except for DeleteTexture, which is fire-and-forget).
   // AsyncCreateSharedMemory runs on the renderer thread and the rest run on
   // |message_loop_|.
-  // The AsyncCreateVideoDecodeAccelerator returns its output in the vda_
-  // member.
+  // AsyncCreateVideoDecodeAccelerator returns its output in the vda_ member.
+  // AsyncCreateVideoEncodeAccelerator returns its ouptu tin the vea_ member.
   void AsyncCreateVideoDecodeAccelerator(
       media::VideoCodecProfile profile,
       media::VideoDecodeAccelerator::Client* client);
-  void AsyncCreateTextures(int32 count, const gfx::Size& size,
-                           uint32 texture_target, uint32* sync_point);
+  void AsyncCreateVideoEncodeAccelerator(
+      media::VideoEncodeAccelerator::Client* client);
+  void AsyncCreateTextures(int32 count,
+                           const gfx::Size& size,
+                           uint32 texture_target,
+                           uint32* sync_point);
   void AsyncDeleteTexture(uint32 texture_id);
   void AsyncWaitSyncPoint(uint32 sync_point);
-  void AsyncReadPixels(uint32 texture_id, uint32 texture_target,
+  void AsyncReadPixels(uint32 texture_id,
+                       uint32 texture_target,
                        const gfx::Size& size);
   void AsyncCreateSharedMemory(size_t size);
   void AsyncDestroyVideoDecodeAccelerator();
+  void AsyncDestroyVideoEncodeAccelerator();
 
   scoped_refptr<base::MessageLoopProxy> message_loop_;
   scoped_refptr<base::MessageLoopProxy> main_message_loop_;
   scoped_refptr<GpuChannelHost> gpu_channel_host_;
   base::WeakPtr<WebGraphicsContext3DCommandBufferImpl> context_;
 
   // This event is signaled if we have been asked to Abort().
   base::WaitableEvent aborted_waiter_;
 
   // This event is signaled by asynchronous tasks posted to |message_loop_| to
   // indicate their completion.
   // e.g. AsyncCreateVideoDecodeAccelerator()/AsyncCreateTextures() etc.
   base::WaitableEvent message_loop_async_waiter_;
 
   // This event is signaled by asynchronous tasks posted to the renderer thread
   // message loop to indicate their completion. e.g. AsyncCreateSharedMemory.
   base::WaitableEvent render_thread_async_waiter_;
 
-  // The vda returned by the CreateVideoAcclelerator function.
+  // The vda returned by the CreateVideoDecodeAccelerator function.
   scoped_ptr<media::VideoDecodeAccelerator> vda_;
 
+  // The vea returned by the CreateVideoEncodeAccelerator function.
+  scoped_ptr<media::VideoEncodeAccelerator> vea_;
+
   // Shared memory segment which is returned by the CreateSharedMemory()
   // function.
   scoped_ptr<base::SharedMemory> shared_memory_segment_;
 
   // Bitmap returned by ReadPixels().
   SkBitmap read_pixels_bitmap_;
 
   // Textures returned by the CreateTexture() function.
   std::vector<uint32> created_textures_;
   std::vector<gpu::Mailbox> created_texture_mailboxes_;
 
-  DISALLOW_COPY_AND_ASSIGN(RendererGpuVideoDecoderFactories);
+  DISALLOW_COPY_AND_ASSIGN(RendererGpuVideoAcceleratorFactories);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_DECODER_FACTORIES_H_
+#endif  // CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_