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_buffer_manager.h"
  11
  12 namespace ppapi {
  13 namespace proxy {
  14
  15 class PPAPI_PROXY_EXPORT MediaStreamTrackResourceBase
  16   : public PluginResource,
  17     public MediaStreamBufferManager::Delegate {
  18  protected:
  19   MediaStreamTrackResourceBase(Connection connection,
  20                                PP_Instance instance,
  21                                int pending_renderer_id,
  22                                const std::string& id);
  23
  24   MediaStreamTrackResourceBase(Connection connection, PP_Instance instance);
  25
  26   ~MediaStreamTrackResourceBase() override;
  27
  28   std::string id() const { return id_; }
  29
  30   void set_id(const std::string& id) { id_ = id; }
  31
  32   bool has_ended() const { return has_ended_; }
  33
  34   MediaStreamBufferManager* buffer_manager() { return &buffer_manager_; }
  35
  36   void CloseInternal();
  37
  38   // Sends a buffer index to the corresponding PepperMediaStreamTrackHostBase
  39   // via an IPC message. The host adds the buffer index into its
  40   // |buffer_manager_| for reading or writing.
  41   // Also see |MediaStreamBufferManager|.
  42   void SendEnqueueBufferMessageToHost(int32_t index);
  43
  44   // PluginResource overrides:
  45   void OnReplyReceived(const ResourceMessageReplyParams& params,
  46                        const IPC::Message& msg) override;
  47
  48  private:
  49   // Message handlers:
  50   void OnPluginMsgInitBuffers(const ResourceMessageReplyParams& params,
  51                               int32_t number_of_buffers,
  52                               int32_t buffer_size,
  53                               bool readonly);
  54   void OnPluginMsgEnqueueBuffer(const ResourceMessageReplyParams& params,
  55                                 int32_t index);
  56   void OnPluginMsgEnqueueBuffers(const ResourceMessageReplyParams& params,
  57                                  const std::vector<int32_t>& indices);
  58
  59   MediaStreamBufferManager buffer_manager_;
  60
  61   std::string id_;
  62
  63   bool has_ended_;
  64
  65   DISALLOW_COPY_AND_ASSIGN(MediaStreamTrackResourceBase);
  66 };
  67
  68 }  // namespace proxy
  69 }  // namespace ppapi
  70
  71 #endif  // PPAPI_PROXY_MEDIA_STREAM_TRACK_RESOURCE_BASE_H_