content/common/gpu/media/android_video_decode_accelerator_state_provider.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_STATE_PROVIDER_H_
   6 #define CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_STATE_PROVIDER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/threading/thread_checker.h"
  10 #include "content/common/content_export.h"
  11 #include "media/video/video_decode_accelerator.h"
  12
  13 namespace gfx {
  14 class SurfaceTexture;
  15 }
  16
  17 namespace gpu {
  18 namespace gles2 {
  19 class GLES2Decoder;
  20 }
  21 }
  22
  23 namespace media {
  24 class VideoCodecBridge;
  25 }
  26
  27 namespace content {
  28
  29 // Helper class that provides the BackingStrategy with enough state
  30 // to do useful work.
  31 class AndroidVideoDecodeAcceleratorStateProvider {
  32  public:
  33   virtual ~AndroidVideoDecodeAcceleratorStateProvider() {}
  34
  35   // Various handy getters.
  36   virtual const gfx::Size& GetSize() const = 0;
  37   virtual const base::ThreadChecker& ThreadChecker() const = 0;
  38   virtual gfx::SurfaceTexture* GetSurfaceTexture() const = 0;
  39   virtual uint32 GetSurfaceTextureId() const = 0;
  40   virtual gpu::gles2::GLES2Decoder* GetGlDecoder() const = 0;
  41   virtual media::VideoCodecBridge* GetMediaCodec() = 0;
  42
  43   // Helper function to report an error condition and stop decoding.
  44   // This will post NotifyError(), and transition to the error state.
  45   // It is meant to be called from the RETURN_ON_FAILURE macro.
  46   virtual void PostError(const ::tracked_objects::Location& from_here,
  47                          media::VideoDecodeAccelerator::Error error) = 0;
  48 };
  49
  50 }  // namespace content
  51
  52 #endif  // CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_STATE_PROVIDER_H_