ppapi/proxy/media_stream_track_resource_base.h

   1 // Copyright 2014 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_PROXY_MEDIA_STREAM_TRACK_RESOURCE_BASE_H_
   6 #define PPAPI_PROXY_MEDIA_STREAM_TRACK_RESOURCE_BASE_H_
   7
   8 #include "ppapi/proxy/plugin_resource.h"
   9 #include "ppapi/proxy/ppapi_proxy_export.h"
  10 #include "ppapi/shared_impl/media_stream_frame_buffer.h"
  11
  12 namespace ppapi {
  13 namespace proxy {
  14
  15 class PPAPI_PROXY_EXPORT MediaStreamTrackResourceBase
  16   : public PluginResource,
  17     public MediaStreamFrameBuffer::Delegate {
  18  protected:
  19   MediaStreamTrackResourceBase(Connection connection,
  20                                PP_Instance instance,
  21                                int pending_renderer_id,
  22                                const std::string& id);
  23
  24   virtual ~MediaStreamTrackResourceBase();
  25
  26   std::string id() const { return id_; }
  27
  28   bool has_ended() const { return has_ended_; }
  29
  30   MediaStreamFrameBuffer* frame_buffer() { return &frame_buffer_; }
  31
  32   void CloseInternal();
  33
  34   // Sends a frame index to the corresponding PepperMediaStreamTrackHostBase
  35   // via an IPC message. The host adds the frame index into its
  36   // |frame_buffer_| for reading or writing. Also see |MediaStreamFrameBuffer|.
  37   void SendEnqueueFrameMessageToHost(int32_t index);
  38
  39   // PluginResource overrides:
  40   virtual void OnReplyReceived(const ResourceMessageReplyParams& params,
  41                                const IPC::Message& msg) OVERRIDE;
  42
  43  private:
  44   // Message handlers:
  45   void OnPluginMsgInitFrames(const ResourceMessageReplyParams& params,
  46                              int32_t number_of_frames,
  47                              int32_t frame_size);
  48   void OnPluginMsgEnqueueFrame(const ResourceMessageReplyParams& params,
  49                                int32_t index);
  50
  51   MediaStreamFrameBuffer frame_buffer_;
  52
  53   std::string id_;
  54
  55   bool has_ended_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(MediaStreamTrackResourceBase);
  58 };
  59
  60 }  // namespace proxy
  61 }  // namespace ppapi
  62
  63 #endif  // PPAPI_PROXY_MEDIA_STREAM_TRACK_RESOURCE_BASE_H_