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 "remoting/client/video_renderer.h"
  12 #include "remoting/protocol/session_config.h"
  13 #include "remoting/protocol/video_stub.h"
  14
  15 namespace base {
  16 class Thread;
  17 class SingleThreadTaskRunner;
  18 }
  19
  20 namespace webrtc {
  21 class DesktopFrame;
  22 class DesktopRect;
  23 }
  24
  25 namespace remoting {
  26 namespace test {
  27
  28 struct RGBValue;
  29
  30 // Processes video packets as they are received from the remote host. Must be
  31 // used from a thread running a message loop and this class will use that
  32 // message loop to execute the done callbacks passed by the caller of
  33 // ProcessVideoPacket.
  34 class TestVideoRenderer : public VideoRenderer, public protocol::VideoStub {
  35  public:
  36   TestVideoRenderer();
  37   ~TestVideoRenderer() override;
  38
  39   // VideoRenderer interface.
  40   void OnSessionConfig(const protocol::SessionConfig& config) override;
  41   protocol::VideoStub* GetVideoStub() override;
  42
  43   // protocol::VideoStub interface.
  44   void ProcessVideoPacket(scoped_ptr<VideoPacket> video_packet,
  45                           const base::Closure& done) override;
  46
  47   // Initialize a decoder to decode video packets.
  48   void SetCodecForDecoding(const protocol::ChannelConfig::Codec codec);
  49
  50   // Returns a copy of the current frame.
  51   scoped_ptr<webrtc::DesktopFrame> GetCurrentFrameForTest() const;
  52
  53   // Gets a weak pointer for this object.
  54   base::WeakPtr<TestVideoRenderer> GetWeakPtr() {
  55     return weak_factory_.GetWeakPtr();
  56   }
  57
  58   // Set expected rect and average color for comparison and the callback will be
  59   // called when the pattern is matched.
  60   void ExpectAverageColorInRect(
  61       const webrtc::DesktopRect& expected_rect,
  62       const RGBValue& expected_average_color,
  63       const base::Closure& image_pattern_matched_callback);
  64
  65   // Turn on/off saving video frames to disk.
  66   void SaveFrameDataToDisk(bool save_frame_data_to_disk);
  67
  68  private:
  69   // The actual implementation resides in Core class.
  70   class Core;
  71   scoped_ptr<Core> core_;
  72
  73   // Used to ensure TestVideoRenderer methods are called on the same thread.
  74   base::ThreadChecker thread_checker_;
  75
  76   // Used to decode and process video packets.
  77   scoped_ptr<base::Thread>  video_decode_thread_;
  78
  79   // Used to post tasks to video decode thread.
  80   scoped_refptr<base::SingleThreadTaskRunner> video_decode_task_runner_;
  81
  82   // Used to weakly bind |this| to methods.
  83   // NOTE: Weak pointers must be invalidated before all other member variables.
  84   base::WeakPtrFactory<TestVideoRenderer> weak_factory_;
  85
  86   DISALLOW_COPY_AND_ASSIGN(TestVideoRenderer);
  87 };
  88
  89 }  // namespace test
  90 }  // namespace remoting
  91
  92 #endif  // REMOTING_TEST_TEST_VIDEO_RENDERER_H_