Use injected rather than global clock in test::VideoProcessor

Bug: webrtc:42223992
Change-Id: I53efc1f5c65a8e73b3ddab4dd938ea828a7fd155
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/474000
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Auto-Submit: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#47748}

modules/video_coding/codecs/test/videoprocessor.cc

diff --git a/modules/video_coding/codecs/test/videoprocessor.cc b/modules/video_coding/codecs/test/videoprocessor.cc
index c6c309b..08f2e44 100644
--- a/modules/video_coding/codecs/test/videoprocessor.cc
+++ b/modules/video_coding/codecs/test/videoprocessor.cc
@@ -161,7 +161,8 @@
                                VideoCodecTestStatsImpl* stats,
                                IvfFileWriterMap* encoded_frame_writers,
                                FrameWriterList* decoded_frame_writers)
-    : config_(config),
+    : env_(env),
+      config_(config),
       num_simulcast_or_spatial_layers_(
           std::max(config_.NumberOfSimulcastStreams(),
                    config_.NumberOfSpatialLayers())),
@@ -315,7 +316,7 @@
 
   // For the highest measurement accuracy of the encode time, the start/stop
   // time recordings should wrap the Encode call as tightly as possible.
-  const int64_t encode_start_ns = TimeNanos();
+  const int64_t encode_start_ns = env_.clock().CurrentTime().ns();
   for (size_t i = 0; i < num_simulcast_or_spatial_layers_; ++i) {
     FrameStatistics* frame_stat = stats_->GetFrame(frame_number, i);
     frame_stat->encode_start_ns = encode_start_ns;
@@ -387,7 +388,7 @@
 
   // For the highest measurement accuracy of the encode time, the start/stop
   // time recordings should wrap the Encode call as tightly as possible.
-  const int64_t encode_stop_ns = TimeNanos();
+  const int64_t encode_stop_ns = env_.clock().CurrentTime().ns();
 
   const VideoCodecType codec_type = codec_specific.codecType;
   if (config_.encoded_frame_checker) {
@@ -509,7 +510,7 @@
   if (!config_.encode_in_real_time) {
     // To get pure encode time for next layers, measure time spent in encode
     // callback and subtract it from encode time of next layers.
-    post_encode_time_ns_ += TimeNanos() - encode_stop_ns;
+    post_encode_time_ns_ += env_.clock().CurrentTime().ns() - encode_stop_ns;
   }
 }
 
@@ -569,7 +570,7 @@
 
   // For the highest measurement accuracy of the decode time, the start/stop
   // time recordings should wrap the Decode call as tightly as possible.
-  const int64_t decode_stop_ns = TimeNanos();
+  const int64_t decode_stop_ns = env_.clock().CurrentTime().ns();
 
   FrameStatistics* frame_stat =
       stats_->GetFrameWithTimestamp(decoded_frame.rtp_timestamp(), spatial_idx);
@@ -653,7 +654,7 @@
   FrameStatistics* frame_stat =
       stats_->GetFrameWithTimestamp(encoded_image.RtpTimestamp(), spatial_idx);
 
-  frame_stat->decode_start_ns = TimeNanos();
+  frame_stat->decode_start_ns = env_.clock().CurrentTime().ns();
   frame_stat->decode_return_code =
       decoders_->at(spatial_idx)->Decode(encoded_image, 0);
 }

modules/video_coding/codecs/test/videoprocessor.h

diff --git a/modules/video_coding/codecs/test/videoprocessor.h b/modules/video_coding/codecs/test/videoprocessor.h
index ed64172..729a021 100644
--- a/modules/video_coding/codecs/test/videoprocessor.h
+++ b/modules/video_coding/codecs/test/videoprocessor.h
@@ -187,6 +187,7 @@
 
   void HandleTailDrops();
 
+  const Environment env_;
   // Test config.
   const VideoCodecTestFixture::Config config_;
   const size_t num_simulcast_or_spatial_layers_;