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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_CLIENT_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_ | 5 #ifndef CONTENT_COMMON_GPU_CLIENT_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_ |
6 #define CONTENT_COMMON_GPU_CLIENT_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_ | 6 #define CONTENT_COMMON_GPU_CLIENT_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/memory/weak_ptr.h" | 10 #include "base/memory/weak_ptr.h" |
11 #include "base/threading/non_thread_safe.h" | 11 #include "base/threading/non_thread_safe.h" |
12 #include "content/common/gpu/client/command_buffer_proxy_impl.h" | 12 #include "content/common/gpu/client/command_buffer_proxy_impl.h" |
13 #include "ipc/ipc_listener.h" | 13 #include "ipc/ipc_listener.h" |
14 #include "media/video/video_decode_accelerator.h" | 14 #include "media/video/video_decode_accelerator.h" |
15 #include "ui/gfx/size.h" | 15 #include "ui/gfx/size.h" |
16 | 16 |
17 namespace content { | 17 namespace content { |
18 class GpuChannelHost; | 18 class GpuChannelHost; |
19 | 19 |
20 // This class is used to talk to VideoDecodeAccelerator in the Gpu process | 20 // This class is used to talk to VideoDecodeAccelerator in the Gpu process |
21 // through IPC messages. | 21 // through IPC messages. |
22 class GpuVideoDecodeAcceleratorHost | 22 class GpuVideoDecodeAcceleratorHost |
23 : public IPC::Listener, | 23 : public IPC::Listener, |
24 public media::VideoDecodeAccelerator, | 24 public media::VideoDecodeAccelerator, |
25 public CommandBufferProxyImpl::DeletionObserver, | 25 public CommandBufferProxyImpl::DeletionObserver, |
26 public base::NonThreadSafe { | 26 public base::NonThreadSafe { |
27 public: | 27 public: |
28 // |channel| is used to send IPC messages to GPU process. | 28 // Both |channel| and |impl| are guaranteed to outlive |this|. (See comments |
29 // for |channel_| and |impl_|.) | |
Pawel Osciak
2014/03/13 06:18:13
Nit: "." after ")".
sheu
2014/03/13 22:39:52
Grammar bits :-)
If this was a parenthetical insi
| |
29 GpuVideoDecodeAcceleratorHost(GpuChannelHost* channel, | 30 GpuVideoDecodeAcceleratorHost(GpuChannelHost* channel, |
30 int32 decoder_route_id, | |
31 CommandBufferProxyImpl* impl); | 31 CommandBufferProxyImpl* impl); |
32 | 32 |
33 // IPC::Listener implementation. | 33 // IPC::Listener implementation. |
34 virtual void OnChannelError() OVERRIDE; | 34 virtual void OnChannelError() OVERRIDE; |
35 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | 35 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
36 | 36 |
37 // media::VideoDecodeAccelerator implementation. | 37 // media::VideoDecodeAccelerator implementation. |
38 virtual bool Initialize(media::VideoCodecProfile profile, | 38 virtual bool Initialize(media::VideoCodecProfile profile, |
39 Client* client) OVERRIDE; | 39 Client* client) OVERRIDE; |
40 virtual void Decode(const media::BitstreamBuffer& bitstream_buffer) OVERRIDE; | 40 virtual void Decode(const media::BitstreamBuffer& bitstream_buffer) OVERRIDE; |
41 virtual void AssignPictureBuffers( | 41 virtual void AssignPictureBuffers( |
42 const std::vector<media::PictureBuffer>& buffers) OVERRIDE; | 42 const std::vector<media::PictureBuffer>& buffers) OVERRIDE; |
43 virtual void ReusePictureBuffer(int32 picture_buffer_id) OVERRIDE; | 43 virtual void ReusePictureBuffer(int32 picture_buffer_id) OVERRIDE; |
44 virtual void Flush() OVERRIDE; | 44 virtual void Flush() OVERRIDE; |
45 virtual void Reset() OVERRIDE; | 45 virtual void Reset() OVERRIDE; |
46 virtual void Destroy() OVERRIDE; | 46 virtual void Destroy() OVERRIDE; |
47 | 47 |
48 // CommandBufferProxyImpl::DeletionObserver implemetnation. | 48 // CommandBufferProxyImpl::DeletionObserver implemetnation. |
49 virtual void OnWillDeleteImpl() OVERRIDE; | 49 virtual void OnWillDeleteImpl() OVERRIDE; |
50 | 50 |
51 private: | 51 private: |
52 // Only Destroy() should be deleting |this|. | 52 // Only Destroy() should be deleting |this|. |
53 virtual ~GpuVideoDecodeAcceleratorHost(); | 53 virtual ~GpuVideoDecodeAcceleratorHost(); |
54 | 54 |
55 // Notify |client_| of an error. Posts a task to avoid re-entrancy. | |
56 void PostNotifyError(Error); | |
57 | |
55 void Send(IPC::Message* message); | 58 void Send(IPC::Message* message); |
56 | 59 |
60 // IPC handlers, proxying media::VideoDecodeAccelerator::Client for the GPU | |
61 // process. Should not be called directly. | |
57 void OnBitstreamBufferProcessed(int32 bitstream_buffer_id); | 62 void OnBitstreamBufferProcessed(int32 bitstream_buffer_id); |
58 void OnProvidePictureBuffer(uint32 num_requested_buffers, | 63 void OnProvidePictureBuffer(uint32 num_requested_buffers, |
59 const gfx::Size& dimensions, | 64 const gfx::Size& dimensions, |
60 uint32 texture_target); | 65 uint32 texture_target); |
61 void OnDismissPictureBuffer(int32 picture_buffer_id); | 66 void OnDismissPictureBuffer(int32 picture_buffer_id); |
62 void OnPictureReady(int32 picture_buffer_id, int32 bitstream_buffer_id); | 67 void OnPictureReady(int32 picture_buffer_id, int32 bitstream_buffer_id); |
63 void OnFlushDone(); | 68 void OnFlushDone(); |
64 void OnResetDone(); | 69 void OnResetDone(); |
65 void OnErrorNotification(uint32 error); | 70 void OnNotifyError(uint32 error); |
66 | 71 |
67 // Sends IPC messages to the Gpu process. | 72 // Unowned reference to the GpuChannelHost to send IPC messages to the GPU |
73 // process. |channel_| outlives |impl_|, so |channel_| also outlives |this|. | |
68 GpuChannelHost* channel_; | 74 GpuChannelHost* channel_; |
69 | 75 |
70 // Route ID for the associated decoder in the GPU process. | 76 // Route ID for the associated decoder in the GPU process. |
71 int32 decoder_route_id_; | 77 int32 decoder_route_id_; |
72 | 78 |
73 // The client that will receive callbacks from the decoder. | 79 // The client that will receive callbacks from the decoder. |
74 Client* client_; | 80 Client* client_; |
75 | 81 |
76 // Unowned reference to the CommandBufferProxyImpl that created us. | 82 // Unowned reference to the CommandBufferProxyImpl that created us. |this| |
83 // registers as a DeletionObserver of |impl_|, so |impl_| outlives |this|. | |
77 CommandBufferProxyImpl* impl_; | 84 CommandBufferProxyImpl* impl_; |
78 | 85 |
79 // Requested dimensions of the buffer, from ProvidePictureBuffers(). | 86 // Requested dimensions of the buffer, from ProvidePictureBuffers(). |
80 gfx::Size picture_buffer_dimensions_; | 87 gfx::Size picture_buffer_dimensions_; |
81 | 88 |
89 // weak_ptr factory for posting tasks back to itself. | |
90 base::WeakPtrFactory<GpuVideoDecodeAcceleratorHost> weak_this_factory_; | |
91 | |
82 DISALLOW_COPY_AND_ASSIGN(GpuVideoDecodeAcceleratorHost); | 92 DISALLOW_COPY_AND_ASSIGN(GpuVideoDecodeAcceleratorHost); |
83 }; | 93 }; |
84 | 94 |
85 } // namespace content | 95 } // namespace content |
86 | 96 |
87 #endif // CONTENT_COMMON_GPU_CLIENT_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_ | 97 #endif // CONTENT_COMMON_GPU_CLIENT_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_ |
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