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      1 /*
      2  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #include <stdio.h>
     12 #include <stdlib.h>
     13 
     14 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
     15 #include "webrtc/modules/video_processing/include/video_processing.h"
     16 #include "webrtc/modules/video_processing/test/video_processing_unittest.h"
     17 #include "webrtc/system_wrappers/include/tick_util.h"
     18 #include "webrtc/test/testsupport/fileutils.h"
     19 
     20 namespace webrtc {
     21 
     22 #if defined(WEBRTC_IOS)
     23 TEST_F(VideoProcessingTest, DISABLED_Deflickering) {
     24 #else
     25 TEST_F(VideoProcessingTest, Deflickering) {
     26 #endif
     27   enum { NumRuns = 30 };
     28   uint32_t frameNum = 0;
     29   const uint32_t frame_rate = 15;
     30 
     31   int64_t min_runtime = 0;
     32   int64_t avg_runtime = 0;
     33 
     34   // Close automatically opened Foreman.
     35   fclose(source_file_);
     36   const std::string input_file =
     37       webrtc::test::ResourcePath("deflicker_before_cif_short", "yuv");
     38   source_file_ = fopen(input_file.c_str(), "rb");
     39   ASSERT_TRUE(source_file_ != NULL) << "Cannot read input file: " << input_file
     40                                     << "\n";
     41 
     42   const std::string output_file =
     43       webrtc::test::OutputPath() + "deflicker_output_cif_short.yuv";
     44   FILE* deflickerFile = fopen(output_file.c_str(), "wb");
     45   ASSERT_TRUE(deflickerFile != NULL)
     46       << "Could not open output file: " << output_file << "\n";
     47 
     48   printf("\nRun time [us / frame]:\n");
     49   rtc::scoped_ptr<uint8_t[]> video_buffer(new uint8_t[frame_length_]);
     50   for (uint32_t run_idx = 0; run_idx < NumRuns; run_idx++) {
     51     TickTime t0;
     52     TickTime t1;
     53     TickInterval acc_ticks;
     54     uint32_t timeStamp = 1;
     55 
     56     frameNum = 0;
     57     while (fread(video_buffer.get(), 1, frame_length_, source_file_) ==
     58            frame_length_) {
     59       frameNum++;
     60       EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_,
     61                                  height_, 0, kVideoRotation_0, &video_frame_));
     62       video_frame_.set_timestamp(timeStamp);
     63 
     64       t0 = TickTime::Now();
     65       VideoProcessing::FrameStats stats;
     66       vp_->GetFrameStats(video_frame_, &stats);
     67       EXPECT_GT(stats.num_pixels, 0u);
     68       ASSERT_EQ(0, vp_->Deflickering(&video_frame_, &stats));
     69       t1 = TickTime::Now();
     70       acc_ticks += (t1 - t0);
     71 
     72       if (run_idx == 0) {
     73         if (PrintVideoFrame(video_frame_, deflickerFile) < 0) {
     74           return;
     75         }
     76       }
     77       timeStamp += (90000 / frame_rate);
     78     }
     79     ASSERT_NE(0, feof(source_file_)) << "Error reading source file";
     80 
     81     printf("%u\n", static_cast<int>(acc_ticks.Microseconds() / frameNum));
     82     if (acc_ticks.Microseconds() < min_runtime || run_idx == 0) {
     83       min_runtime = acc_ticks.Microseconds();
     84     }
     85     avg_runtime += acc_ticks.Microseconds();
     86 
     87     rewind(source_file_);
     88   }
     89   ASSERT_EQ(0, fclose(deflickerFile));
     90   // TODO(kjellander): Add verification of deflicker output file.
     91 
     92   printf("\nAverage run time = %d us / frame\n",
     93          static_cast<int>(avg_runtime / frameNum / NumRuns));
     94   printf("Min run time = %d us / frame\n\n",
     95          static_cast<int>(min_runtime / frameNum));
     96 }
     97 
     98 }  // namespace webrtc
     99