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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_ | 5 #ifndef CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_ |
6 #define CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_ | 6 #define CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include "base/basictypes.h" |
9 | 9 #include "base/mac/scoped_cftyperef.h" |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
11 #include "base/memory/weak_ptr.h" | 11 #include "base/memory/weak_ptr.h" |
12 #include "base/message_loop/message_loop.h" | 12 #include "base/message_loop/message_loop.h" |
13 #include "base/message_loop/message_loop_proxy.h" | 13 #include "base/threading/thread.h" |
| 14 #include "content/common/gpu/media/vt.h" |
| 15 #include "media/filters/h264_parser.h" |
14 #include "media/video/video_decode_accelerator.h" | 16 #include "media/video/video_decode_accelerator.h" |
| 17 #include "ui/gfx/geometry/size.h" |
15 #include "ui/gl/gl_context_cgl.h" | 18 #include "ui/gl/gl_context_cgl.h" |
16 | 19 |
| 20 namespace base { |
| 21 class SingleThreadTaskRunner; |
| 22 } // namespace base |
| 23 |
17 namespace content { | 24 namespace content { |
18 | 25 |
19 // (Stub of a) VideoToolbox.framework implementation of the | 26 // VideoToolbox.framework implementation of the VideoDecodeAccelerator |
20 // VideoDecodeAccelerator interface for Mac OS X. | 27 // interface for Mac OS X (currently limited to 10.9+). |
21 class VTVideoDecodeAccelerator | 28 class VTVideoDecodeAccelerator |
22 : public media::VideoDecodeAccelerator, | 29 : public media::VideoDecodeAccelerator, |
23 public base::NonThreadSafe { | 30 public base::NonThreadSafe { |
24 public: | 31 public: |
25 explicit VTVideoDecodeAccelerator(CGLContextObj cgl_context); | 32 explicit VTVideoDecodeAccelerator(CGLContextObj cgl_context); |
26 virtual ~VTVideoDecodeAccelerator(); | 33 virtual ~VTVideoDecodeAccelerator(); |
27 | 34 |
28 // VideoDecodeAccelerator implementation. | 35 // VideoDecodeAccelerator implementation. |
29 virtual bool Initialize( | 36 virtual bool Initialize( |
30 media::VideoCodecProfile profile, | 37 media::VideoCodecProfile profile, |
31 Client* client) OVERRIDE; | 38 Client* client) OVERRIDE; |
32 virtual void Decode(const media::BitstreamBuffer& bitstream) OVERRIDE; | 39 virtual void Decode(const media::BitstreamBuffer& bitstream) OVERRIDE; |
33 virtual void AssignPictureBuffers( | 40 virtual void AssignPictureBuffers( |
34 const std::vector<media::PictureBuffer>& pictures) OVERRIDE; | 41 const std::vector<media::PictureBuffer>& pictures) OVERRIDE; |
35 virtual void ReusePictureBuffer(int32_t picture_id) OVERRIDE; | 42 virtual void ReusePictureBuffer(int32_t picture_id) OVERRIDE; |
36 virtual void Flush() OVERRIDE; | 43 virtual void Flush() OVERRIDE; |
37 virtual void Reset() OVERRIDE; | 44 virtual void Reset() OVERRIDE; |
38 virtual void Destroy() OVERRIDE; | 45 virtual void Destroy() OVERRIDE; |
39 virtual bool CanDecodeOnIOThread() OVERRIDE; | 46 virtual bool CanDecodeOnIOThread() OVERRIDE; |
40 | 47 |
| 48 // Called by VideoToolbox when a frame is decoded. |
| 49 void Output( |
| 50 int32_t bitstream_id, |
| 51 OSStatus status, |
| 52 VTDecodeInfoFlags info_flags, |
| 53 CVImageBufferRef image_buffer); |
| 54 |
41 private: | 55 private: |
42 scoped_refptr<base::MessageLoopProxy> loop_proxy_; | 56 // Configure a VideoToolbox decompression session from parameter set NALUs. |
| 57 void ConfigureDecoder( |
| 58 const std::vector<const uint8_t*>& nalu_data_ptrs, |
| 59 const std::vector<size_t>& nalu_data_sizes); |
| 60 |
| 61 // Decode a frame of bitstream. |
| 62 void DecodeTask(const media::BitstreamBuffer); |
| 63 |
43 CGLContextObj cgl_context_; | 64 CGLContextObj cgl_context_; |
44 media::VideoDecodeAccelerator::Client* client_; | 65 media::VideoDecodeAccelerator::Client* client_; |
| 66 base::Thread decoder_thread_; |
| 67 |
| 68 // Decoder configuration (used only on decoder thread). |
| 69 VTDecompressionOutputCallbackRecord callback_; |
| 70 base::ScopedCFTypeRef<CMFormatDescriptionRef> format_; |
| 71 base::ScopedCFTypeRef<VTDecompressionSessionRef> session_; |
| 72 media::H264Parser parser_; |
| 73 gfx::Size coded_size_; |
45 | 74 |
46 // Member variables should appear before the WeakPtrFactory, to ensure | 75 // Member variables should appear before the WeakPtrFactory, to ensure |
47 // that any WeakPtrs to Controller are invalidated before its members | 76 // that any WeakPtrs to Controller are invalidated before its members |
48 // variable's destructors are executed, rendering them invalid. | 77 // variable's destructors are executed, rendering them invalid. |
49 base::WeakPtrFactory<VTVideoDecodeAccelerator> weak_this_factory_; | 78 base::WeakPtrFactory<VTVideoDecodeAccelerator> weak_this_factory_; |
50 | 79 |
51 DISALLOW_COPY_AND_ASSIGN(VTVideoDecodeAccelerator); | 80 DISALLOW_COPY_AND_ASSIGN(VTVideoDecodeAccelerator); |
52 }; | 81 }; |
53 | 82 |
54 } // namespace content | 83 } // namespace content |
55 | 84 |
56 #endif // CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_ | 85 #endif // CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_ |
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