Migrate content/common/gpu/media code to media/gpu

content/common/gpu/media/gpu_video_encode_accelerator.h

-// Copyright 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_GPU_VIDEO_ENCODE_ACCELERATOR_H_
-#define CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_ENCODE_ACCELERATOR_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <memory>
-#include <vector>
-
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "gpu/config/gpu_info.h"
-#include "gpu/ipc/service/gpu_command_buffer_stub.h"
-#include "ipc/ipc_listener.h"
-#include "media/video/video_encode_accelerator.h"
-#include "ui/gfx/geometry/size.h"
-
-struct AcceleratedVideoEncoderMsg_Encode_Params;
-struct AcceleratedVideoEncoderMsg_Encode_Params2;
-
-namespace base {
-class SharedMemory;
-}  // namespace base
-
-namespace gpu {
-struct GpuPreferences;
-}  // namespace gpu
-
-namespace content {
-
-// This class encapsulates the GPU process view of a VideoEncodeAccelerator,
-// wrapping the platform-specific VideoEncodeAccelerator instance.  It handles
-// IPC coming in from the renderer and passes it to the underlying VEA.
-class GpuVideoEncodeAccelerator
-    : public IPC::Listener,
-      public media::VideoEncodeAccelerator::Client,
-      public gpu::GpuCommandBufferStub::DestructionObserver {
- public:
-  GpuVideoEncodeAccelerator(int32_t host_route_id,
-                            gpu::GpuCommandBufferStub* stub);
-  ~GpuVideoEncodeAccelerator() override;
-
-  // Initialize this accelerator with the given parameters and send
-  // |init_done_msg| when complete.
-  bool Initialize(media::VideoPixelFormat input_format,
-                  const gfx::Size& input_visible_size,
-                  media::VideoCodecProfile output_profile,
-                  uint32_t initial_bitrate);
-
-  // IPC::Listener implementation
-  bool OnMessageReceived(const IPC::Message& message) override;
-
-  // media::VideoEncodeAccelerator::Client implementation.
-  void RequireBitstreamBuffers(unsigned int input_count,
-                               const gfx::Size& input_coded_size,
-                               size_t output_buffer_size) override;
-  void BitstreamBufferReady(int32_t bitstream_buffer_id,
-                            size_t payload_size,
-                            bool key_frame) override;
-  void NotifyError(media::VideoEncodeAccelerator::Error error) override;
-
-  // gpu::GpuCommandBufferStub::DestructionObserver implementation.
-  void OnWillDestroyStub() override;
-
-  // Static query for supported profiles.  This query calls the appropriate
-  // platform-specific version. The returned supported profiles vector will
-  // not contain duplicates.
-  static gpu::VideoEncodeAcceleratorSupportedProfiles GetSupportedProfiles(
-      const gpu::GpuPreferences& gpu_preferences);
-
- private:
-  typedef std::unique_ptr<media::VideoEncodeAccelerator> (*CreateVEAFp)();
-
-  // Return a set of VEA Create function pointers applicable to the current
-  // platform.
-  static std::vector<CreateVEAFp> CreateVEAFps(
-      const gpu::GpuPreferences& gpu_preferences);
-#if defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
-  static std::unique_ptr<media::VideoEncodeAccelerator> CreateV4L2VEA();
-#endif
-#if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
-  static std::unique_ptr<media::VideoEncodeAccelerator> CreateVaapiVEA();
-#endif
-#if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
-  static std::unique_ptr<media::VideoEncodeAccelerator> CreateAndroidVEA();
-#endif
-#if defined(OS_MACOSX)
-  static std::unique_ptr<media::VideoEncodeAccelerator> CreateVTVEA();
-#endif
-
-  // IPC handlers, proxying media::VideoEncodeAccelerator for the renderer
-  // process.
-  void OnEncode(const AcceleratedVideoEncoderMsg_Encode_Params& params);
-  void OnEncode2(const AcceleratedVideoEncoderMsg_Encode_Params2& params);
-  void OnUseOutputBitstreamBuffer(int32_t buffer_id,
-                                  base::SharedMemoryHandle buffer_handle,
-                                  uint32_t buffer_size);
-  void OnRequestEncodingParametersChange(uint32_t bitrate, uint32_t framerate);
-
-  void OnDestroy();
-
-  void EncodeFrameFinished(int32_t frame_id,
-                           std::unique_ptr<base::SharedMemory> shm);
-  void Send(IPC::Message* message);
-
-  // Route ID to communicate with the host.
-  const uint32_t host_route_id_;
-
-  // Unowned pointer to the underlying gpu::GpuCommandBufferStub.  |this| is
-  // registered as a DestuctionObserver of |stub_| and will self-delete when
-  // |stub_| is destroyed.
-  gpu::GpuCommandBufferStub* const stub_;
-
-  // Owned pointer to the underlying VideoEncodeAccelerator.
-  std::unique_ptr<media::VideoEncodeAccelerator> encoder_;
-  base::Callback<bool(void)> make_context_current_;
-
-  // Video encoding parameters.
-  media::VideoPixelFormat input_format_;
-  gfx::Size input_visible_size_;
-  gfx::Size input_coded_size_;
-  size_t output_buffer_size_;
-
-  // Weak pointer for media::VideoFrames that refer back to |this|.
-  base::WeakPtrFactory<GpuVideoEncodeAccelerator> weak_this_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuVideoEncodeAccelerator);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_ENCODE_ACCELERATOR_H_