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_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_