remoting/protocol/video_reader.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 // VideoReader is a generic interface used by ConnectionToHost to read
   6 // video stream. ProtobufVideoReader implements this interface for
   7 // protobuf video stream.
   8
   9 #ifndef REMOTING_PROTOCOL_VIDEO_READER_H_
  10 #define REMOTING_PROTOCOL_VIDEO_READER_H_
  11
  12 #include "base/callback.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "remoting/protocol/video_stub.h"
  15
  16 namespace remoting {
  17 namespace protocol {
  18
  19 class Session;
  20 class SessionConfig;
  21
  22 class VideoReader {
  23  public:
  24   // The callback is called when initialization is finished. The
  25   // parameter is set to true on success.
  26   typedef base::Callback<void(bool)> InitializedCallback;
  27
  28   virtual ~VideoReader();
  29
  30   static scoped_ptr<VideoReader> Create(const SessionConfig& config);
  31
  32   // Initializies the reader. Doesn't take ownership of either |connection|
  33   // or |video_stub|.
  34   virtual void Init(Session* session,
  35                     VideoStub* video_stub,
  36                     const InitializedCallback& callback) = 0;
  37   virtual bool is_connected() = 0;
  38
  39  protected:
  40   VideoReader() { }
  41
  42  private:
  43   DISALLOW_COPY_AND_ASSIGN(VideoReader);
  44 };
  45
  46 }  // namespace protocol
  47 }  // namespace remoting
  48
  49 #endif  // REMOTING_PROTOCOL_VIDEO_READER_H_