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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