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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2012 Google Inc. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright notice, | |
| 9 * this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 11 * this list of conditions and the following disclaimer in the documentation | |
| 12 * and/or other materials provided with the distribution. | |
| 13 * 3. The name of the author may not be used to endorse or promote products | |
| 14 * derived from this software without specific prior written permission. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
| 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #include "talk/media/base/capturemanager.h" | |
| 29 | |
| 30 #include "talk/media/base/fakevideocapturer.h" | |
| 31 #include "talk/media/base/fakevideorenderer.h" | |
| 32 #include "webrtc/base/arraysize.h" | |
| 33 #include "webrtc/base/gunit.h" | |
| 34 #include "webrtc/base/sigslot.h" | |
| 35 | |
| 36 const int kMsCallbackWait = 50; | |
| 37 | |
| 38 const int kFps = 30; | |
| 39 const cricket::VideoFormatPod kCameraFormats[] = { | |
| 40 {640, 480, cricket::VideoFormat::FpsToInterval(kFps), cricket::FOURCC_I420}, | |
| 41 {320, 240, cricket::VideoFormat::FpsToInterval(kFps), cricket::FOURCC_I420} | |
| 42 }; | |
| 43 | |
| 44 class CaptureManagerTest : public ::testing::Test, public sigslot::has_slots<> { | |
| 45 public: | |
| 46 CaptureManagerTest() | |
| 47 : capture_manager_(), | |
| 48 callback_count_(0), | |
| 49 format_vga_(kCameraFormats[0]), | |
| 50 format_qvga_(kCameraFormats[1]) { | |
| 51 } | |
| 52 virtual void SetUp() { | |
| 53 PopulateSupportedFormats(); | |
| 54 capture_state_ = cricket::CS_STOPPED; | |
| 55 capture_manager_.SignalCapturerStateChange.connect( | |
| 56 this, | |
| 57 &CaptureManagerTest::OnCapturerStateChange); | |
| 58 } | |
| 59 void PopulateSupportedFormats() { | |
| 60 std::vector<cricket::VideoFormat> formats; | |
| 61 for (int i = 0; i < arraysize(kCameraFormats); ++i) { | |
| 62 formats.push_back(cricket::VideoFormat(kCameraFormats[i])); | |
| 63 } | |
| 64 video_capturer_.ResetSupportedFormats(formats); | |
| 65 } | |
| 66 int NumFramesRendered() { return video_renderer_.num_rendered_frames(); } | |
| 67 bool WasRenderedResolution(cricket::VideoFormat format) { | |
| 68 return format.width == video_renderer_.width() && | |
| 69 format.height == video_renderer_.height(); | |
| 70 } | |
| 71 cricket::CaptureState capture_state() { return capture_state_; } | |
| 72 int callback_count() { return callback_count_; } | |
| 73 void OnCapturerStateChange(cricket::VideoCapturer* capturer, | |
| 74 cricket::CaptureState capture_state) { | |
| 75 capture_state_ = capture_state; | |
| 76 ++callback_count_; | |
| 77 } | |
| 78 | |
| 79 protected: | |
| 80 cricket::FakeVideoCapturer video_capturer_; | |
| 81 cricket::FakeVideoRenderer video_renderer_; | |
| 82 | |
| 83 cricket::CaptureManager capture_manager_; | |
| 84 | |
| 85 cricket::CaptureState capture_state_; | |
| 86 int callback_count_; | |
| 87 cricket::VideoFormat format_vga_; | |
| 88 cricket::VideoFormat format_qvga_; | |
| 89 }; | |
| 90 | |
| 91 // Incorrect use cases. | |
| 92 TEST_F(CaptureManagerTest, InvalidCallOrder) { | |
| 93 // Capturer must be registered before any of these calls. | |
| 94 EXPECT_FALSE(capture_manager_.AddVideoRenderer(&video_capturer_, | |
| 95 &video_renderer_)); | |
| 96 } | |
| 97 | |
| 98 TEST_F(CaptureManagerTest, InvalidAddingRemoving) { | |
| 99 EXPECT_FALSE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 100 cricket::VideoFormat())); | |
| 101 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 102 format_vga_)); | |
| 103 EXPECT_EQ_WAIT(cricket::CS_RUNNING, capture_state(), kMsCallbackWait); | |
| 104 EXPECT_EQ(1, callback_count()); | |
| 105 EXPECT_FALSE(capture_manager_.AddVideoRenderer(&video_capturer_, NULL)); | |
| 106 EXPECT_FALSE(capture_manager_.RemoveVideoRenderer(&video_capturer_, | |
| 107 &video_renderer_)); | |
| 108 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, format_vga_)); | |
| 109 } | |
| 110 | |
| 111 // Valid use cases | |
| 112 TEST_F(CaptureManagerTest, KeepFirstResolutionHigh) { | |
| 113 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 114 format_vga_)); | |
| 115 EXPECT_EQ_WAIT(cricket::CS_RUNNING, capture_state(), kMsCallbackWait); | |
| 116 EXPECT_EQ(1, callback_count()); | |
| 117 EXPECT_TRUE(capture_manager_.AddVideoRenderer(&video_capturer_, | |
| 118 &video_renderer_)); | |
| 119 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 120 EXPECT_EQ(1, NumFramesRendered()); | |
| 121 // Renderer should be fed frames with the resolution of format_vga_. | |
| 122 EXPECT_TRUE(WasRenderedResolution(format_vga_)); | |
| 123 | |
| 124 // Start again with one more format. | |
| 125 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 126 format_qvga_)); | |
| 127 // Existing renderers should be fed frames with the resolution of format_vga_. | |
| 128 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 129 EXPECT_TRUE(WasRenderedResolution(format_vga_)); | |
| 130 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, format_vga_)); | |
| 131 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 132 format_qvga_)); | |
| 133 EXPECT_FALSE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 134 format_vga_)); | |
| 135 EXPECT_FALSE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 136 format_qvga_)); | |
| 137 } | |
| 138 | |
| 139 // Should pick the lowest resolution as the highest resolution is not chosen | |
| 140 // until after capturing has started. This ensures that no particular resolution | |
| 141 // is favored over others. | |
| 142 TEST_F(CaptureManagerTest, KeepFirstResolutionLow) { | |
| 143 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 144 format_qvga_)); | |
| 145 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 146 format_vga_)); | |
| 147 EXPECT_TRUE(capture_manager_.AddVideoRenderer(&video_capturer_, | |
| 148 &video_renderer_)); | |
| 149 EXPECT_EQ_WAIT(1, callback_count(), kMsCallbackWait); | |
| 150 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 151 EXPECT_EQ(1, NumFramesRendered()); | |
| 152 EXPECT_TRUE(WasRenderedResolution(format_qvga_)); | |
| 153 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 154 format_qvga_)); | |
| 155 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 156 format_vga_)); | |
| 157 } | |
| 158 | |
| 159 // Ensure that the reference counting is working when multiple start and | |
| 160 // multiple stop calls are made. | |
| 161 TEST_F(CaptureManagerTest, MultipleStartStops) { | |
| 162 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 163 format_vga_)); | |
| 164 // Add video capturer but with different format. | |
| 165 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 166 format_qvga_)); | |
| 167 EXPECT_EQ_WAIT(cricket::CS_RUNNING, capture_state(), kMsCallbackWait); | |
| 168 EXPECT_EQ(1, callback_count()); | |
| 169 EXPECT_TRUE(capture_manager_.AddVideoRenderer(&video_capturer_, | |
| 170 &video_renderer_)); | |
| 171 // Ensure that a frame can be captured when two start calls have been made. | |
| 172 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 173 EXPECT_EQ(1, NumFramesRendered()); | |
| 174 | |
| 175 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, format_vga_)); | |
| 176 // Video should still render since there has been two start calls but only | |
| 177 // one stop call. | |
| 178 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 179 EXPECT_EQ(2, NumFramesRendered()); | |
| 180 | |
| 181 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 182 format_qvga_)); | |
| 183 EXPECT_EQ_WAIT(cricket::CS_STOPPED, capture_state(), kMsCallbackWait); | |
| 184 EXPECT_EQ(2, callback_count()); | |
| 185 // Last stop call should fail as it is one more than the number of start | |
| 186 // calls. | |
| 187 EXPECT_FALSE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 188 format_vga_)); | |
| 189 } | |
| 190 | |
| 191 TEST_F(CaptureManagerTest, TestForceRestart) { | |
| 192 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 193 format_qvga_)); | |
| 194 EXPECT_TRUE(capture_manager_.AddVideoRenderer(&video_capturer_, | |
| 195 &video_renderer_)); | |
| 196 EXPECT_EQ_WAIT(1, callback_count(), kMsCallbackWait); | |
| 197 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 198 EXPECT_EQ(1, NumFramesRendered()); | |
| 199 EXPECT_TRUE(WasRenderedResolution(format_qvga_)); | |
| 200 // Now restart with vga. | |
| 201 EXPECT_TRUE(capture_manager_.RestartVideoCapture( | |
| 202 &video_capturer_, format_qvga_, format_vga_, | |
| 203 cricket::CaptureManager::kForceRestart)); | |
| 204 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 205 EXPECT_EQ(2, NumFramesRendered()); | |
| 206 EXPECT_TRUE(WasRenderedResolution(format_vga_)); | |
| 207 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 208 format_vga_)); | |
| 209 } | |
| 210 | |
| 211 TEST_F(CaptureManagerTest, TestRequestRestart) { | |
| 212 EXPECT_TRUE(capture_manager_.StartVideoCapture(&video_capturer_, | |
| 213 format_vga_)); | |
| 214 EXPECT_TRUE(capture_manager_.AddVideoRenderer(&video_capturer_, | |
| 215 &video_renderer_)); | |
| 216 EXPECT_EQ_WAIT(1, callback_count(), kMsCallbackWait); | |
| 217 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 218 EXPECT_EQ(1, NumFramesRendered()); | |
| 219 EXPECT_TRUE(WasRenderedResolution(format_vga_)); | |
| 220 // Now request restart with qvga. | |
| 221 EXPECT_TRUE(capture_manager_.RestartVideoCapture( | |
| 222 &video_capturer_, format_vga_, format_qvga_, | |
| 223 cricket::CaptureManager::kRequestRestart)); | |
| 224 EXPECT_TRUE(video_capturer_.CaptureFrame()); | |
| 225 EXPECT_EQ(2, NumFramesRendered()); | |
| 226 EXPECT_TRUE(WasRenderedResolution(format_vga_)); | |
| 227 EXPECT_TRUE(capture_manager_.StopVideoCapture(&video_capturer_, | |
| 228 format_qvga_)); | |
| 229 } | |
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