content/renderer/pepper/ppb_video_decoder_impl.h

   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_