media/blink/video_frame_compositor_unittest.cc

   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 #include "base/bind.h"
   6 #include "cc/layers/video_frame_provider.h"
   7 #include "media/base/video_frame.h"
   8 #include "media/blink/video_frame_compositor.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10
  11 namespace media {
  12
  13 class VideoFrameCompositorTest : public testing::Test,
  14                                  public cc::VideoFrameProvider::Client {
  15  public:
  16   VideoFrameCompositorTest()
  17       : compositor_(new VideoFrameCompositor(
  18             base::Bind(&VideoFrameCompositorTest::NaturalSizeChanged,
  19                        base::Unretained(this)),
  20             base::Bind(&VideoFrameCompositorTest::OpacityChanged,
  21                        base::Unretained(this)))),
  22         did_receive_frame_count_(0),
  23         natural_size_changed_count_(0),
  24         opacity_changed_count_(0),
  25         opaque_(false) {
  26     compositor_->SetVideoFrameProviderClient(this);
  27   }
  28
  29   virtual ~VideoFrameCompositorTest() {
  30     compositor_->SetVideoFrameProviderClient(NULL);
  31   }
  32
  33   VideoFrameCompositor* compositor() { return compositor_.get(); }
  34   int did_receive_frame_count() { return did_receive_frame_count_; }
  35   int natural_size_changed_count() { return natural_size_changed_count_; }
  36   gfx::Size natural_size() { return natural_size_; }
  37
  38   int opacity_changed_count() { return opacity_changed_count_; }
  39   bool opaque() { return opaque_; }
  40
  41  private:
  42   // cc::VideoFrameProvider::Client implementation.
  43   virtual void StopUsingProvider() override {}
  44   virtual void DidReceiveFrame() override {
  45     ++did_receive_frame_count_;
  46   }
  47   virtual void DidUpdateMatrix(const float* matrix) override {}
  48
  49   void NaturalSizeChanged(gfx::Size natural_size) {
  50     ++natural_size_changed_count_;
  51     natural_size_ = natural_size;
  52   }
  53
  54   void OpacityChanged(bool opaque) {
  55     ++opacity_changed_count_;
  56     opaque_ = opaque;
  57   }
  58
  59   scoped_ptr<VideoFrameCompositor> compositor_;
  60   int did_receive_frame_count_;
  61   int natural_size_changed_count_;
  62   gfx::Size natural_size_;
  63   int opacity_changed_count_;
  64   bool opaque_;
  65
  66   DISALLOW_COPY_AND_ASSIGN(VideoFrameCompositorTest);
  67 };
  68
  69 TEST_F(VideoFrameCompositorTest, InitialValues) {
  70   EXPECT_FALSE(compositor()->GetCurrentFrame().get());
  71 }
  72
  73 TEST_F(VideoFrameCompositorTest, UpdateCurrentFrame) {
  74   scoped_refptr<VideoFrame> expected = VideoFrame::CreateEOSFrame();
  75
  76   // Should notify compositor synchronously.
  77   EXPECT_EQ(0, did_receive_frame_count());
  78   compositor()->UpdateCurrentFrame(expected);
  79   scoped_refptr<VideoFrame> actual = compositor()->GetCurrentFrame();
  80   EXPECT_EQ(expected, actual);
  81   EXPECT_EQ(1, did_receive_frame_count());
  82 }
  83
  84 TEST_F(VideoFrameCompositorTest, NaturalSizeChanged) {
  85   gfx::Size initial_size(8, 8);
  86   scoped_refptr<VideoFrame> initial_frame =
  87       VideoFrame::CreateBlackFrame(initial_size);
  88
  89   gfx::Size larger_size(16, 16);
  90   scoped_refptr<VideoFrame> larger_frame =
  91       VideoFrame::CreateBlackFrame(larger_size);
  92
  93   // Initial expectations.
  94   EXPECT_EQ(0, natural_size().width());
  95   EXPECT_EQ(0, natural_size().height());
  96   EXPECT_EQ(0, natural_size_changed_count());
  97
  98   // Callback isn't fired for the first frame.
  99   compositor()->UpdateCurrentFrame(initial_frame);
 100   EXPECT_EQ(0, natural_size().width());
 101   EXPECT_EQ(0, natural_size().height());
 102   EXPECT_EQ(0, natural_size_changed_count());
 103
 104   // Callback should be fired once.
 105   compositor()->UpdateCurrentFrame(larger_frame);
 106   EXPECT_EQ(larger_size.width(), natural_size().width());
 107   EXPECT_EQ(larger_size.height(), natural_size().height());
 108   EXPECT_EQ(1, natural_size_changed_count());
 109
 110   compositor()->UpdateCurrentFrame(larger_frame);
 111   EXPECT_EQ(larger_size.width(), natural_size().width());
 112   EXPECT_EQ(larger_size.height(), natural_size().height());
 113   EXPECT_EQ(1, natural_size_changed_count());
 114
 115   // Callback is fired once more when switching back to initial size.
 116   compositor()->UpdateCurrentFrame(initial_frame);
 117   EXPECT_EQ(initial_size.width(), natural_size().width());
 118   EXPECT_EQ(initial_size.height(), natural_size().height());
 119   EXPECT_EQ(2, natural_size_changed_count());
 120
 121   compositor()->UpdateCurrentFrame(initial_frame);
 122   EXPECT_EQ(initial_size.width(), natural_size().width());
 123   EXPECT_EQ(initial_size, natural_size());
 124   EXPECT_EQ(2, natural_size_changed_count());
 125 }
 126
 127 TEST_F(VideoFrameCompositorTest, OpacityChanged) {
 128   gfx::Size size(8, 8);
 129   gfx::Rect rect(gfx::Point(0, 0), size);
 130   scoped_refptr<VideoFrame> opaque_frame = VideoFrame::CreateFrame(
 131       VideoFrame::YV12, size, rect, size, base::TimeDelta());
 132   scoped_refptr<VideoFrame> not_opaque_frame = VideoFrame::CreateFrame(
 133       VideoFrame::YV12A, size, rect, size, base::TimeDelta());
 134
 135   // Initial expectations.
 136   EXPECT_FALSE(opaque());
 137   EXPECT_EQ(0, opacity_changed_count());
 138
 139   // Callback is fired for the first frame.
 140   compositor()->UpdateCurrentFrame(not_opaque_frame);
 141   EXPECT_FALSE(opaque());
 142   EXPECT_EQ(1, opacity_changed_count());
 143
 144   // Callback shouldn't be first subsequent times with same opaqueness.
 145   compositor()->UpdateCurrentFrame(not_opaque_frame);
 146   EXPECT_FALSE(opaque());
 147   EXPECT_EQ(1, opacity_changed_count());
 148
 149   // Callback is fired when using opacity changes.
 150   compositor()->UpdateCurrentFrame(opaque_frame);
 151   EXPECT_TRUE(opaque());
 152   EXPECT_EQ(2, opacity_changed_count());
 153
 154   // Callback shouldn't be first subsequent times with same opaqueness.
 155   compositor()->UpdateCurrentFrame(opaque_frame);
 156   EXPECT_TRUE(opaque());
 157   EXPECT_EQ(2, opacity_changed_count());
 158 }
 159
 160 }  // namespace media