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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" |
15 #include "ui/gl/gl_context_cgl.h" | 17 #include "ui/gl/gl_context_cgl.h" |
16 | 18 |
19 namespace base { | |
20 class SingleThreadTaskRunner; | |
21 } // namespace base | |
22 | |
17 namespace content { | 23 namespace content { |
18 | 24 |
19 // (Stub of a) VideoToolbox.framework implementation of the | 25 // VideoToolbox.framework implementation of the VideoDecodeAccelerator |
20 // VideoDecodeAccelerator interface for Mac OS X. | 26 // interface for Mac OS X (currently limited to 10.9+). |
21 class VTVideoDecodeAccelerator | 27 class VTVideoDecodeAccelerator |
22 : public media::VideoDecodeAccelerator, | 28 : public media::VideoDecodeAccelerator, |
23 public base::NonThreadSafe { | 29 public base::NonThreadSafe { |
24 public: | 30 public: |
25 explicit VTVideoDecodeAccelerator(CGLContextObj cgl_context); | 31 explicit VTVideoDecodeAccelerator(CGLContextObj cgl_context); |
26 virtual ~VTVideoDecodeAccelerator(); | 32 virtual ~VTVideoDecodeAccelerator(); |
27 | 33 |
28 // VideoDecodeAccelerator implementation. | 34 // VideoDecodeAccelerator implementation. |
29 virtual bool Initialize( | 35 virtual bool Initialize( |
30 media::VideoCodecProfile profile, | 36 media::VideoCodecProfile profile, |
31 Client* client) OVERRIDE; | 37 Client* client) OVERRIDE; |
32 virtual void Decode(const media::BitstreamBuffer& bitstream) OVERRIDE; | 38 virtual void Decode(const media::BitstreamBuffer& bitstream) OVERRIDE; |
33 virtual void AssignPictureBuffers( | 39 virtual void AssignPictureBuffers( |
34 const std::vector<media::PictureBuffer>& pictures) OVERRIDE; | 40 const std::vector<media::PictureBuffer>& pictures) OVERRIDE; |
35 virtual void ReusePictureBuffer(int32_t picture_id) OVERRIDE; | 41 virtual void ReusePictureBuffer(int32_t picture_id) OVERRIDE; |
36 virtual void Flush() OVERRIDE; | 42 virtual void Flush() OVERRIDE; |
37 virtual void Reset() OVERRIDE; | 43 virtual void Reset() OVERRIDE; |
38 virtual void Destroy() OVERRIDE; | 44 virtual void Destroy() OVERRIDE; |
39 virtual bool CanDecodeOnIOThread() OVERRIDE; | 45 virtual bool CanDecodeOnIOThread() OVERRIDE; |
40 | 46 |
47 // Called by VideoToolbox when a frame is decoded. | |
48 void Output( | |
49 int32_t bitstream_id, | |
50 OSStatus status, | |
51 VTDecodeInfoFlags info_flags, | |
52 CVImageBufferRef image_buffer); | |
53 | |
41 private: | 54 private: |
42 scoped_refptr<base::MessageLoopProxy> loop_proxy_; | 55 // Configure a VideoToolbox decompression session from parameter set NALUs. |
56 void ConfigureDecoder( | |
57 const std::vector<const uint8_t*>& nalu_data_ptrs, | |
58 const std::vector<size_t>& nalu_data_sizes); | |
59 | |
60 // Decode a frame of bitstream. | |
61 void DecodeTask(const media::BitstreamBuffer); | |
62 | |
63 scoped_refptr<base::SingleThreadTaskRunner> gpu_task_runner_; | |
scherkus (not reviewing)
2014/07/09 22:39:25
nit: I'd just get rid of this until you need it
| |
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 int32_t coded_width_; | |
Pawel Osciak
2014/07/10 00:10:55
Nit: use gfx::Size ?
| |
74 int32_t coded_height_; | |
45 | 75 |
46 // Member variables should appear before the WeakPtrFactory, to ensure | 76 // Member variables should appear before the WeakPtrFactory, to ensure |
47 // that any WeakPtrs to Controller are invalidated before its members | 77 // that any WeakPtrs to Controller are invalidated before its members |
48 // variable's destructors are executed, rendering them invalid. | 78 // variable's destructors are executed, rendering them invalid. |
49 base::WeakPtrFactory<VTVideoDecodeAccelerator> weak_this_factory_; | 79 base::WeakPtrFactory<VTVideoDecodeAccelerator> weak_this_factory_; |
50 | 80 |
51 DISALLOW_COPY_AND_ASSIGN(VTVideoDecodeAccelerator); | 81 DISALLOW_COPY_AND_ASSIGN(VTVideoDecodeAccelerator); |
52 }; | 82 }; |
53 | 83 |
54 } // namespace content | 84 } // namespace content |
55 | 85 |
56 #endif // CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_ | 86 #endif // CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_ |
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