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   ChromotingStats* GetStats() override;
  42   protocol::VideoStub* GetVideoStub() override;
  43
  44   // protocol::VideoStub interface.
  45   void ProcessVideoPacket(scoped_ptr<VideoPacket> video_packet,
  46                           const base::Closure& done) override;
  47
  48   // Initialize a decoder to decode video packets.
  49   void SetCodecForDecoding(const protocol::ChannelConfig::Codec codec);
  50
  51   // Returns a copy of the current frame.
  52   scoped_ptr<webrtc::DesktopFrame> GetCurrentFrameForTest() const;
  53
  54   // Gets a weak pointer for this object.
  55   base::WeakPtr<TestVideoRenderer> GetWeakPtr() {
  56     return weak_factory_.GetWeakPtr();
  57   }
  58
  59   // Set expected rect and average color for comparison and the callback will be
  60   // called when the pattern is matched.
  61   void ExpectAverageColorInRect(
  62       const webrtc::DesktopRect& expected_rect,
  63       const RGBValue& expected_average_color,
  64       const base::Closure& image_pattern_matched_callback);
  65
  66   // Turn on/off saving video frames to disk.
  67   void SaveFrameDataToDisk(bool save_frame_data_to_disk);
  68
  69  private:
  70   // The actual implementation resides in Core class.
  71   class Core;
  72   scoped_ptr<Core> core_;
  73
  74   // Used to ensure TestVideoRenderer methods are called on the same thread.
  75   base::ThreadChecker thread_checker_;
  76
  77   // Used to decode and process video packets.
  78   scoped_ptr<base::Thread>  video_decode_thread_;
  79
  80   // Used to post tasks to video decode thread.
  81   scoped_refptr<base::SingleThreadTaskRunner> video_decode_task_runner_;
  82
  83   // Used to weakly bind |this| to methods.
  84   // NOTE: Weak pointers must be invalidated before all other member variables.
  85   base::WeakPtrFactory<TestVideoRenderer> weak_factory_;
  86
  87   DISALLOW_COPY_AND_ASSIGN(TestVideoRenderer);
  88 };
  89
  90 }  // namespace test
  91 }  // namespace remoting
  92
  93 #endif  // REMOTING_TEST_TEST_VIDEO_RENDERER_H_