remoting/test/test_video_renderer.h

   1 // Copyright 2015 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 REMOTING_TEST_TEST_VIDEO_RENDERER_H_
   6 #define REMOTING_TEST_TEST_VIDEO_RENDERER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "base/threading/thread_checker.h"
  11 #include "media/base/video_frame.h"
  12 #include "remoting/client/video_renderer.h"
  13 #include "remoting/protocol/session_config.h"
  14 #include "remoting/protocol/video_stub.h"
  15
  16 namespace base {
  17 class Thread;
  18 class SingleThreadTaskRunner;
  19 }
  20
  21 namespace webrtc {
  22 class DesktopFrame;
  23 }
  24
  25 namespace remoting {
  26 namespace test {
  27
  28 // Processes video packets as they are received from the remote host. Must be
  29 // used from a thread running a message loop and this class will use that
  30 // message loop to execute the done callbacks passed by the caller of
  31 // ProcessVideoPacket.
  32 class TestVideoRenderer : public VideoRenderer, public protocol::VideoStub {
  33  public:
  34   TestVideoRenderer();
  35   ~TestVideoRenderer() override;
  36
  37   // VideoRenderer interface.
  38   void OnSessionConfig(const protocol::SessionConfig& config) override;
  39   ChromotingStats* GetStats() override;
  40   protocol::VideoStub* GetVideoStub() override;
  41
  42   // protocol::VideoStub interface.
  43   void ProcessVideoPacket(scoped_ptr<VideoPacket> video_packet,
  44                           const base::Closure& done) override;
  45
  46   // Initialize a decoder to decode video packets.
  47   void SetCodecForDecoding(const protocol::ChannelConfig::Codec codec);
  48
  49   // Returns a copy of the current buffer.
  50   scoped_ptr<webrtc::DesktopFrame> GetBufferForTest() const;
  51
  52  private:
  53   // The actual implementation resides in Core class.
  54   class Core;
  55   scoped_ptr<Core> core_;
  56
  57   // Used to ensure TestVideoRenderer methods are called on the same thread.
  58   base::ThreadChecker thread_checker_;
  59
  60   // Used to decode and process video packets.
  61   scoped_ptr<base::Thread>  video_decode_thread_;
  62
  63   // Used to post tasks to video decode thread.
  64   scoped_refptr<base::SingleThreadTaskRunner> video_decode_task_runner_;
  65
  66   // Used to weakly bind |this| to methods.
  67   // NOTE: Weak pointers must be invalidated before all other member variables.
  68   base::WeakPtrFactory<TestVideoRenderer> weak_factory_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(TestVideoRenderer);
  71 };
  72
  73 }  // namespace test
  74 }  // namespace remoting
  75
  76 #endif  // REMOTING_TEST_TEST_VIDEO_RENDERER_H_