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| 1 // Copyright 2013 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_VIDEO_DECODE_ACCELERATOR_IMPL_H_ |
| 6 #define CONTENT_COMMON_GPU_MEDIA_VIDEO_DECODE_ACCELERATOR_IMPL_H_ |
| 7 |
| 8 #include "content/common/content_export.h" |
| 9 #include "media/video/video_decode_accelerator.h" |
| 10 |
| 11 namespace content { |
| 12 |
| 13 class CONTENT_EXPORT VideoDecodeAcceleratorImpl |
| 14 : public media::VideoDecodeAccelerator { |
| 15 public: |
| 16 VideoDecodeAcceleratorImpl(); |
| 17 |
| 18 // Returns true if VDA::Decode and VDA::Client callbacks can run on the IO |
| 19 // thread. Otherwise they will run on the GPU child thread. The purpose of |
| 20 // running Decode on the IO thread is to reduce decode latency. Note Decode |
| 21 // should return as soon as possible and not block on the IO thread. Also, |
| 22 // PictureReady should be run on the child thread if a picture is delivered |
| 23 // the first time so it can be cleared. |
| 24 virtual bool CanDecodeOnIOThread(); |
| 25 |
| 26 protected: |
| 27 virtual ~VideoDecodeAcceleratorImpl(); |
| 28 }; |
| 29 |
| 30 } // namespace content |
| 31 |
| 32 namespace base { |
| 33 |
| 34 template <class T> |
| 35 struct DefaultDeleter; |
| 36 |
| 37 // Specialize DefaultDeleter so that scoped_ptr<VideoDecodeAcceleratorImpl> |
| 38 // always uses "Destroy()" instead of trying to use the destructor. |
| 39 template <> |
| 40 struct DefaultDeleter<content::VideoDecodeAcceleratorImpl> { |
| 41 public: |
| 42 inline void operator()(void* video_decode_accelerator) const { |
| 43 static_cast<content::VideoDecodeAcceleratorImpl*>(video_decode_accelerator) |
| 44 ->Destroy(); |
| 45 } |
| 46 }; |
| 47 |
| 48 } // namespace base |
| 49 |
| 50 #endif // CONTENT_COMMON_GPU_MEDIA_VIDEO_DECODE_ACCELERATOR_IMPL_H_ |
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