1 files changed, 15 insertions, 0 deletions
diff --git a/tests/c2_e2e_test/jni/common.cpp b/tests/c2_e2e_test/jni/common.cpp
index 673e36c..75fa1f7 100644
--- a/tests/c2_e2e_test/jni/common.cpp
+++ b/tests/c2_e2e_test/jni/common.cpp
@@ -171,6 +171,17 @@ bool OutputFile::WriteFrame(uint32_t data_size, const uint8_t* data) {
     }
 }
 
+// Reference: (https://source.chromium.org/chromium/chromium/src/+/main:
+//             media/gpu/video_decode_accelerator_perf_tests.cc
+PerformanceTimeStats::PerformanceTimeStats(const std::vector<double>& times) {
+    avg_us_ = std::accumulate(times.begin(), times.end(), 0.0) / times.size();
+    std::vector<double> sorted_times = times;
+    std::sort(sorted_times.begin(), sorted_times.end());
+    percentile_25_us_ = sorted_times[sorted_times.size() / 4];
+    percentile_50_us_ = sorted_times[sorted_times.size() / 2];
+    percentile_75_us_ = sorted_times[(sorted_times.size() * 3) / 4];
+}
+
 bool FPSCalculator::RecordFrameTimeDiff() {
     int64_t now_us = GetNowUs();
     if (last_frame_time_us_ != 0) {
@@ -198,6 +209,10 @@ double FPSCalculator::CalculateFPS() const {
     return 1E6 / moving_avgs[index];
 }
 
+PerformanceTimeStats FPSCalculator::CalucalateDeliveryTimeStats() const {
+    return PerformanceTimeStats(frame_time_diffs_us_);
+}
+
 // Reference: (https://cs.corp.google.com/android/cts/common/device-side/util/
 //             src/com/android/compatibility/common/util/MediaUtils.java)
 //            movingAverageOverSum