ppapi/proxy/media_stream_video_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_VIDEO_TRACK_RESOURCE_H_
   6 #define PPAPI_PROXY_MEDIA_STREAM_VIDEO_TRACK_RESOURCE_H_
   7
   8 #include <map>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "ppapi/proxy/media_stream_track_resource_base.h"
  12 #include "ppapi/proxy/ppapi_proxy_export.h"
  13 #include "ppapi/thunk/ppb_media_stream_video_track_api.h"
  14
  15 namespace ppapi {
  16 namespace proxy {
  17
  18 class VideoFrameResource;
  19
  20 class PPAPI_PROXY_EXPORT MediaStreamVideoTrackResource
  21     : public MediaStreamTrackResourceBase,
  22       public thunk::PPB_MediaStreamVideoTrack_API {
  23  public:
  24   MediaStreamVideoTrackResource(Connection connection,
  25                                 PP_Instance instance,
  26                                 int pending_renderer_id,
  27                                 const std::string& id);
  28
  29   MediaStreamVideoTrackResource(Connection connection, PP_Instance instance);
  30
  31   virtual ~MediaStreamVideoTrackResource();
  32
  33   // Resource overrides:
  34   virtual thunk::PPB_MediaStreamVideoTrack_API*
  35   AsPPB_MediaStreamVideoTrack_API() override;
  36
  37   // PPB_MediaStreamVideoTrack_API overrides:
  38   virtual PP_Var GetId() override;
  39   virtual PP_Bool HasEnded() override;
  40   virtual int32_t Configure(const int32_t attrib_list[],
  41                             scoped_refptr<TrackedCallback> callback) override;
  42   virtual int32_t GetAttrib(PP_MediaStreamVideoTrack_Attrib attrib,
  43                             int32_t* value) override;
  44   virtual int32_t GetFrame(PP_Resource* frame,
  45                            scoped_refptr<TrackedCallback> callback) override;
  46   virtual int32_t RecycleFrame(PP_Resource frame) override;
  47   virtual void Close() override;
  48   virtual int32_t GetEmptyFrame(
  49       PP_Resource* frame, scoped_refptr<TrackedCallback> callback) override;
  50   virtual int32_t PutFrame(PP_Resource frame) override;
  51
  52   // MediaStreamBufferManager::Delegate overrides:
  53   virtual void OnNewBufferEnqueued() override;
  54
  55  private:
  56   PP_Resource GetVideoFrame();
  57
  58   void ReleaseFrames();
  59
  60   // IPC message handlers.
  61   void OnPluginMsgConfigureReply(const ResourceMessageReplyParams& params,
  62                                  const std::string& track_id);
  63
  64   // Allocated frame resources by |GetFrame()|.
  65   typedef std::map<PP_Resource, scoped_refptr<VideoFrameResource> > FrameMap;
  66   FrameMap frames_;
  67
  68   PP_Resource* get_frame_output_;
  69   scoped_refptr<TrackedCallback> get_frame_callback_;
  70
  71   scoped_refptr<TrackedCallback> configure_callback_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoTrackResource);
  74 };
  75
  76 }  // namespace proxy
  77 }  // namespace ppapi
  78
  79 #endif  // PPAPI_PROXY_MEDIA_STREAM_VIDEO_TRACK_RESOURCE_H_