src/ppapi/proxy/media_stream_audio_track_resource.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_AUDIO_TRACK_RESOURCE_H_
   6 #define PPAPI_PROXY_MEDIA_STREAM_AUDIO_TRACK_RESOURCE_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/memory/ref_counted.h"
  12 #include "ppapi/proxy/media_stream_track_resource_base.h"
  13 #include "ppapi/proxy/ppapi_proxy_export.h"
  14 #include "ppapi/thunk/ppb_media_stream_audio_track_api.h"
  15
  16 namespace ppapi {
  17 namespace proxy {
  18
  19 class AudioBufferResource;
  20
  21 class PPAPI_PROXY_EXPORT MediaStreamAudioTrackResource
  22     : public MediaStreamTrackResourceBase,
  23       public thunk::PPB_MediaStreamAudioTrack_API {
  24  public:
  25   MediaStreamAudioTrackResource(Connection connection,
  26                                 PP_Instance instance,
  27                                 int pending_renderer_id,
  28                                 const std::string& id);
  29
  30   virtual ~MediaStreamAudioTrackResource();
  31
  32   // Resource overrides:
  33   virtual thunk::PPB_MediaStreamAudioTrack_API*
  34   AsPPB_MediaStreamAudioTrack_API() override;
  35
  36   // PPB_MediaStreamAudioTrack_API overrides:
  37   virtual PP_Var GetId() override;
  38   virtual PP_Bool HasEnded() override;
  39   virtual int32_t Configure(const int32_t attrib_list[],
  40                             scoped_refptr<TrackedCallback> callback) override;
  41   virtual int32_t GetAttrib(PP_MediaStreamAudioTrack_Attrib attrib,
  42                             int32_t* value) override;
  43   virtual int32_t GetBuffer(
  44       PP_Resource* buffer,
  45       scoped_refptr<TrackedCallback> callback) override;
  46   virtual int32_t RecycleBuffer(PP_Resource buffer) override;
  47   virtual void Close() override;
  48
  49   // MediaStreamBufferManager::Delegate overrides:
  50   virtual void OnNewBufferEnqueued() override;
  51
  52  private:
  53   PP_Resource GetAudioBuffer();
  54
  55   void ReleaseBuffers();
  56
  57   // IPC message handlers.
  58   void OnPluginMsgConfigureReply(const ResourceMessageReplyParams& params);
  59
  60   // Allocated buffer resources by |GetBuffer()|.
  61   typedef std::map<PP_Resource, scoped_refptr<AudioBufferResource> > BufferMap;
  62   BufferMap buffers_;
  63
  64   PP_Resource* get_buffer_output_;
  65
  66   scoped_refptr<TrackedCallback> configure_callback_;
  67
  68   scoped_refptr<TrackedCallback> get_buffer_callback_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(MediaStreamAudioTrackResource);
  71 };
  72
  73 }  // namespace proxy
  74 }  // namespace ppapi
  75
  76 #endif  // PPAPI_PROXY_MEDIA_STREAM_AUDIO_TRACK_RESOURCE_H_