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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_dev_api.h"
     18 
     19 struct PP_PictureBuffer_Dev;
     20 struct PP_VideoBitstreamBuffer_Dev;
     21 
     22 namespace content {
     23 class PPB_Graphics3D_Impl;
     24 
     25 class PPB_VideoDecoder_Impl : public ppapi::PPB_VideoDecoder_Shared,
     26                               public media::VideoDecodeAccelerator::Client {
     27  public:
     28   // See PPB_VideoDecoder_Dev::Create.  Returns 0 on failure to create &
     29   // initialize.
     30   static PP_Resource Create(PP_Instance instance,
     31                             PP_Resource graphics_context,
     32                             PP_VideoDecoder_Profile profile);
     33 
     34   // PPB_VideoDecoder_Dev_API implementation.
     35   virtual int32_t Decode(const PP_VideoBitstreamBuffer_Dev* bitstream_buffer,
     36                          scoped_refptr<ppapi::TrackedCallback> callback)
     37       OVERRIDE;
     38   virtual void AssignPictureBuffers(uint32_t no_of_buffers,
     39                                     const PP_PictureBuffer_Dev* buffers)
     40       OVERRIDE;
     41   virtual void ReusePictureBuffer(int32_t picture_buffer_id) OVERRIDE;
     42   virtual int32_t Flush(scoped_refptr<ppapi::TrackedCallback> callback)
     43       OVERRIDE;
     44   virtual int32_t Reset(scoped_refptr<ppapi::TrackedCallback> callback)
     45       OVERRIDE;
     46   virtual void Destroy() OVERRIDE;
     47 
     48   // media::VideoDecodeAccelerator::Client implementation.
     49   virtual void ProvidePictureBuffers(uint32 requested_num_of_buffers,
     50                                      const gfx::Size& dimensions,
     51                                      uint32 texture_target) OVERRIDE;
     52   virtual void DismissPictureBuffer(int32 picture_buffer_id) OVERRIDE;
     53   virtual void PictureReady(const media::Picture& picture) OVERRIDE;
     54   virtual void NotifyError(media::VideoDecodeAccelerator::Error error) OVERRIDE;
     55   virtual void NotifyFlushDone() OVERRIDE;
     56   virtual void NotifyEndOfBitstreamBuffer(int32 buffer_id) OVERRIDE;
     57   virtual void NotifyResetDone() OVERRIDE;
     58 
     59  private:
     60   virtual ~PPB_VideoDecoder_Impl();
     61 
     62   explicit PPB_VideoDecoder_Impl(PP_Instance instance);
     63   bool Init(PP_Resource graphics_context,
     64             PP_VideoDecoder_Profile profile);
     65 
     66   // This is NULL before initialization, and after destruction.
     67   // Holds a GpuVideoDecodeAcceleratorHost.
     68   scoped_ptr<media::VideoDecodeAccelerator> decoder_;
     69 
     70   // Reference to the plugin requesting this interface.
     71   const PPP_VideoDecoder_Dev* ppp_videodecoder_;
     72 
     73   DISALLOW_COPY_AND_ASSIGN(PPB_VideoDecoder_Impl);
     74 };
     75 
     76 }  // namespace content
     77 
     78 #endif  // CONTENT_RENDERER_PEPPER_PPB_VIDEO_DECODER_IMPL_H_
     79