Introduce GpuVideoDecodeAcceleratorFactory.

content/common/gpu/media/android_video_decode_accelerator.h

 // Copyright (c) 2013 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_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <stdint.h>
 
 #include <list>
 #include <map>
 #include <queue>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/threading/thread_checker.h"
 #include "base/timer/timer.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/media/avda_state_provider.h"
+#include "content/public/common/gpu_video_decode_accelerator_helpers.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "media/base/android/media_drm_bridge.h"
 #include "media/base/android/sdk_media_codec_bridge.h"
 #include "media/base/media_keys.h"
 #include "media/video/video_decode_accelerator.h"
 #include "ui/gl/android/scoped_java_surface.h"
 
 namespace gfx {
 class SurfaceTexture;
 }
@@ skipping 63 matching lines @@
 
     // Notify the strategy that a frame is available.  This callback can happen
     // on any thread at any time.
     virtual void OnFrameAvailable() = 0;
 
     // Whether the pictures produced by this backing strategy are overlayable.
     virtual bool ArePicturesOverlayable() = 0;
   };
 
   AndroidVideoDecodeAccelerator(
-      const base::WeakPtr<gpu::gles2::GLES2Decoder> decoder,
-      const base::Callback<bool(void)>& make_context_current);
+      const gpu_vda_helpers::GetGLES2DecoderCb& get_gles2_decoder_cb,
+      const gpu_vda_helpers::MakeGLContextCurrentCb& make_context_current_cb);
 
   ~AndroidVideoDecodeAccelerator() override;
 
   // media::VideoDecodeAccelerator implementation:
   bool Initialize(const Config& config, Client* client) override;
   void SetCdm(int cdm_id) override;
   void Decode(const media::BitstreamBuffer& bitstream_buffer) override;
   void AssignPictureBuffers(
       const std::vector<media::PictureBuffer>& buffers) override;
   void ReusePictureBuffer(int32_t picture_buffer_id) override;
   void Flush() override;
   void Reset() override;
   void Destroy() override;
-  bool CanDecodeOnIOThread() override;
+  bool TryInitializeDecodeOnSeparateThread(
+      const base::WeakPtr<Client>& decode_client,
+      const scoped_refptr<base::SingleThreadTaskRunner>& decode_task_runner)
+      override;
 
   // AVDAStateProvider implementation:
   const gfx::Size& GetSize() const override;
   const base::ThreadChecker& ThreadChecker() const override;
   base::WeakPtr<gpu::gles2::GLES2Decoder> GetGlDecoder() const override;
   void PostError(const ::tracked_objects::Location& from_here,
                  media::VideoDecodeAccelerator::Error error) override;
 
   static media::VideoDecodeAccelerator::Capabilities GetCapabilities();
 
@@ skipping 90 matching lines @@
   // Return true if and only if we should use deferred rendering.
   static bool UseDeferredRenderingStrategy();
 
   // Used to DCHECK that we are called on the correct thread.
   base::ThreadChecker thread_checker_;
 
   // To expose client callbacks from VideoDecodeAccelerator.
   Client* client_;
 
   // Callback to set the correct gl context.
-  base::Callback<bool(void)> make_context_current_;
+  gpu_vda_helpers::MakeGLContextCurrentCb make_context_current_cb_;
+
+  // Callback to get the GLES2Decoder instance.
+  gpu_vda_helpers::GetGLES2DecoderCb get_gles2_decoder_cb_;
 
   // Codec type. Used when we configure media codec.
   media::VideoCodec codec_;
 
   // Whether the stream is encrypted.
   bool is_encrypted_;
 
   // Whether encryption scheme requires to use protected surface.
   bool needs_protected_surface_;
 
@@ skipping 37 matching lines @@
   // A map of presentation timestamp to bitstream buffer id for the bitstream
   // buffers that have been submitted to the decoder but haven't yet produced an
   // output frame with the same timestamp. Note: there will only be one entry
   // for multiple bitstream buffers that have the same presentation timestamp.
   std::map<base::TimeDelta, int32_t> bitstream_buffers_in_decoder_;
 
   // Keeps track of bitstream ids notified to the client with
   // NotifyEndOfBitstreamBuffer() before getting output from the bitstream.
   std::list<int32_t> bitstreams_notified_in_advance_;
 
-  // Owner of the GL context. Used to restore the context state.
-  base::WeakPtr<gpu::gles2::GLES2Decoder> gl_decoder_;
-
   // Backing strategy that we'll use to connect PictureBuffers to frames.
   scoped_ptr<BackingStrategy> strategy_;
 
   // Helper class that manages asynchronous OnFrameAvailable callbacks.
   class OnFrameAvailableHandler;
   scoped_refptr<OnFrameAvailableHandler> on_frame_available_handler_;
 
   // Time at which we last did useful work on io_timer_.
   base::TimeTicks most_recent_work_;
 
@@ skipping 23 matching lines @@
 
   // WeakPtrFactory for posting tasks back to |this|.
   base::WeakPtrFactory<AndroidVideoDecodeAccelerator> weak_this_factory_;
 
   friend class AndroidVideoDecodeAcceleratorTest;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_H_