1 files changed, 120 insertions, 0 deletions
diff --git a/webrtc/modules/video_processing/test/brightness_detection_test.cc b/webrtc/modules/video_processing/test/brightness_detection_test.cc
new file mode 100644
index 0000000000..669bb183e5
--- /dev/null
+++ b/webrtc/modules/video_processing/test/brightness_detection_test.cc
@@ -0,0 +1,120 @@
+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
+#include "webrtc/modules/video_processing/include/video_processing.h"
+#include "webrtc/modules/video_processing/test/video_processing_unittest.h"
+
+namespace webrtc {
+
+#if defined(WEBRTC_IOS)
+#define MAYBE_BrightnessDetection DISABLED_BrightnessDetection
+#else
+#define MAYBE_BrightnessDetection BrightnessDetection
+#endif
+TEST_F(VideoProcessingTest, MAYBE_BrightnessDetection) {
+  uint32_t frameNum = 0;
+  int32_t brightnessWarning = 0;
+  uint32_t warningCount = 0;
+  rtc::scoped_ptr<uint8_t[]> video_buffer(new uint8_t[frame_length_]);
+  while (fread(video_buffer.get(), 1, frame_length_, source_file_) ==
+         frame_length_) {
+    EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_, height_,
+                               0, kVideoRotation_0, &video_frame_));
+    frameNum++;
+    VideoProcessing::FrameStats stats;
+    vp_->GetFrameStats(video_frame_, &stats);
+    EXPECT_GT(stats.num_pixels, 0u);
+    ASSERT_GE(brightnessWarning = vp_->BrightnessDetection(video_frame_, stats),
+              0);
+    if (brightnessWarning != VideoProcessing::kNoWarning) {
+      warningCount++;
+    }
+  }
+  ASSERT_NE(0, feof(source_file_)) << "Error reading source file";
+
+  // Expect few warnings
+  float warningProportion = static_cast<float>(warningCount) / frameNum * 100;
+  printf("\nWarning proportions:\n");
+  printf("Stock foreman: %.1f %%\n", warningProportion);
+  EXPECT_LT(warningProportion, 10);
+
+  rewind(source_file_);
+  frameNum = 0;
+  warningCount = 0;
+  while (fread(video_buffer.get(), 1, frame_length_, source_file_) ==
+             frame_length_ &&
+         frameNum < 300) {
+    EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_, height_,
+                               0, kVideoRotation_0, &video_frame_));
+    frameNum++;
+
+    uint8_t* frame = video_frame_.buffer(kYPlane);
+    uint32_t yTmp = 0;
+    for (int yIdx = 0; yIdx < width_ * height_; yIdx++) {
+      yTmp = frame[yIdx] << 1;
+      if (yTmp > 255) {
+        yTmp = 255;
+      }
+      frame[yIdx] = static_cast<uint8_t>(yTmp);
+    }
+
+    VideoProcessing::FrameStats stats;
+    vp_->GetFrameStats(video_frame_, &stats);
+    EXPECT_GT(stats.num_pixels, 0u);
+    ASSERT_GE(brightnessWarning = vp_->BrightnessDetection(video_frame_, stats),
+              0);
+    EXPECT_NE(VideoProcessing::kDarkWarning, brightnessWarning);
+    if (brightnessWarning == VideoProcessing::kBrightWarning) {
+      warningCount++;
+    }
+  }
+  ASSERT_NE(0, feof(source_file_)) << "Error reading source file";
+
+  // Expect many brightness warnings
+  warningProportion = static_cast<float>(warningCount) / frameNum * 100;
+  printf("Bright foreman: %.1f %%\n", warningProportion);
+  EXPECT_GT(warningProportion, 95);
+
+  rewind(source_file_);
+  frameNum = 0;
+  warningCount = 0;
+  while (fread(video_buffer.get(), 1, frame_length_, source_file_) ==
+             frame_length_ &&
+         frameNum < 300) {
+    EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_, height_,
+                               0, kVideoRotation_0, &video_frame_));
+    frameNum++;
+
+    uint8_t* y_plane = video_frame_.buffer(kYPlane);
+    int32_t yTmp = 0;
+    for (int yIdx = 0; yIdx < width_ * height_; yIdx++) {
+      yTmp = y_plane[yIdx] >> 1;
+      y_plane[yIdx] = static_cast<uint8_t>(yTmp);
+    }
+
+    VideoProcessing::FrameStats stats;
+    vp_->GetFrameStats(video_frame_, &stats);
+    EXPECT_GT(stats.num_pixels, 0u);
+    ASSERT_GE(brightnessWarning = vp_->BrightnessDetection(video_frame_, stats),
+              0);
+    EXPECT_NE(VideoProcessing::kBrightWarning, brightnessWarning);
+    if (brightnessWarning == VideoProcessing::kDarkWarning) {
+      warningCount++;
+    }
+  }
+  ASSERT_NE(0, feof(source_file_)) << "Error reading source file";
+
+  // Expect many darkness warnings
+  warningProportion = static_cast<float>(warningCount) / frameNum * 100;
+  printf("Dark foreman: %.1f %%\n\n", warningProportion);
+  EXPECT_GT(warningProportion, 90);
+}
+}  // namespace webrtc