src/ppapi/cpp/dev/video_decoder_client_dev.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 PPAPI_CPP_DEV_VIDEO_DECODER_CLIENT_DEV_H_
   6 #define PPAPI_CPP_DEV_VIDEO_DECODER_CLIENT_DEV_H_
   7
   8 #include "ppapi/c/pp_stdint.h"
   9 #include "ppapi/c/dev/pp_video_dev.h"
  10 #include "ppapi/cpp/instance_handle.h"
  11
  12 namespace pp {
  13
  14 class Instance;
  15 class VideoDecoder_Dev;
  16
  17 // This class provides a C++ interface for callbacks related to video decoding.
  18 // It is the C++ counterpart to PPP_VideoDecoder_Dev.
  19 // You would normally use multiple inheritance to derive from this class in your
  20 // instance.
  21 class VideoDecoderClient_Dev {
  22  public:
  23   VideoDecoderClient_Dev(Instance* instance);
  24   virtual ~VideoDecoderClient_Dev();
  25
  26   // Callback to provide buffers for the decoded output pictures.
  27   virtual void ProvidePictureBuffers(PP_Resource decoder,
  28                                      uint32_t req_num_of_bufs,
  29                                      const PP_Size& dimensions,
  30                                      uint32_t texture_target) = 0;
  31
  32   // Callback for decoder to deliver unneeded picture buffers back to the
  33   // plugin.
  34   virtual void DismissPictureBuffer(PP_Resource decoder,
  35                                     int32_t picture_buffer_id) = 0;
  36
  37   // Callback to deliver decoded pictures ready to be displayed.
  38   virtual void PictureReady(PP_Resource decoder,
  39                             const PP_Picture_Dev& picture) = 0;
  40
  41   // Callback to notify about decoding errors.
  42   virtual void NotifyError(PP_Resource decoder,
  43                            PP_VideoDecodeError_Dev error) = 0;
  44
  45  private:
  46   InstanceHandle associated_instance_;
  47 };
  48
  49 }  // namespace pp
  50
  51 #endif  // PPAPI_CPP_DEV_VIDEO_DECODER_CLIENT_DEV_H_