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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
3 // found in the LICENSE file.
4 
5 #ifndef CONTENT_RENDERER_PEPPER_PPB_VIDEO_DECODER_IMPL_H_
6 #define CONTENT_RENDERER_PEPPER_PPB_VIDEO_DECODER_IMPL_H_
7 
8 #include "base/basictypes.h"
9 #include "base/compiler_specific.h"
10 #include "base/memory/ref_counted.h"
11 #include "media/video/video_decode_accelerator.h"
12 #include "ppapi/c/dev/pp_video_dev.h"
13 #include "ppapi/c/dev/ppp_video_decoder_dev.h"
14 #include "ppapi/c/pp_var.h"
15 #include "ppapi/shared_impl/ppb_video_decoder_shared.h"
16 #include "ppapi/shared_impl/resource.h"
17 #include "ppapi/thunk/ppb_video_decoder_api.h"
18 
19 struct PP_PictureBuffer_Dev;
20 struct PP_VideoBitstreamBuffer_Dev;
21 
22 namespace gpu {
23 namespace gles2 {
24 class GLES2Implementation;
25 }  // namespace gles2
26 }  // namespace gpu
27 
28 namespace content {
29 class PlatformContext3D;
30 class PlatformVideoDecoder;
31 
32 class PPB_VideoDecoder_Impl : public ppapi::PPB_VideoDecoder_Shared,
33                               public media::VideoDecodeAccelerator::Client {
34  public:
35   // See PPB_VideoDecoder_Dev::Create.  Returns 0 on failure to create &
36   // initialize.
37   static PP_Resource Create(PP_Instance instance,
38                             PP_Resource graphics_context,
39                             PP_VideoDecoder_Profile profile);
40 
41   // PPB_VideoDecoder_API implementation.
42   virtual int32_t Decode(
43       const PP_VideoBitstreamBuffer_Dev* bitstream_buffer,
44       scoped_refptr<ppapi::TrackedCallback> callback) OVERRIDE;
45   virtual void AssignPictureBuffers(
46       uint32_t no_of_buffers, const PP_PictureBuffer_Dev* buffers) OVERRIDE;
47   virtual void ReusePictureBuffer(int32_t picture_buffer_id) OVERRIDE;
48   virtual int32_t Flush(
49       scoped_refptr<ppapi::TrackedCallback> callback) OVERRIDE;
50   virtual int32_t Reset(
51       scoped_refptr<ppapi::TrackedCallback> callback) OVERRIDE;
52   virtual void Destroy() OVERRIDE;
53 
54   // media::VideoDecodeAccelerator::Client implementation.
55   virtual void ProvidePictureBuffers(uint32 requested_num_of_buffers,
56                                      const gfx::Size& dimensions,
57                                      uint32 texture_target) OVERRIDE;
58   virtual void DismissPictureBuffer(int32 picture_buffer_id) OVERRIDE;
59   virtual void PictureReady(const media::Picture& picture) OVERRIDE;
60   virtual void NotifyInitializeDone() OVERRIDE;
61   virtual void NotifyError(
62       media::VideoDecodeAccelerator::Error error) OVERRIDE;
63   virtual void NotifyFlushDone() OVERRIDE;
64   virtual void NotifyEndOfBitstreamBuffer(int32 buffer_id) OVERRIDE;
65   virtual void NotifyResetDone() OVERRIDE;
66 
67  private:
68   virtual ~PPB_VideoDecoder_Impl();
69 
70   explicit PPB_VideoDecoder_Impl(PP_Instance instance);
71   bool Init(PP_Resource graphics_context,
72             PlatformContext3D* context,
73             gpu::gles2::GLES2Implementation* gles2_impl,
74             PP_VideoDecoder_Profile profile);
75 
76   // This is NULL before initialization, and if this PPB_VideoDecoder_Impl is
77   // swapped with another.
78   scoped_ptr<PlatformVideoDecoder> platform_video_decoder_;
79 
80   // Reference to the plugin requesting this interface.
81   const PPP_VideoDecoder_Dev* ppp_videodecoder_;
82 
83   DISALLOW_COPY_AND_ASSIGN(PPB_VideoDecoder_Impl);
84 };
85 
86 }  // namespace content
87 
88 #endif  // CONTENT_RENDERER_PEPPER_PPB_VIDEO_DECODER_IMPL_H_
89