1 files changed, 101 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/test/timestamp_test.cc b/media/libvpx/libvpx/test/timestamp_test.cc
new file mode 100644
index 0000000000..00abf8f31c
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+++ b/media/libvpx/libvpx/test/timestamp_test.cc
@@ -0,0 +1,101 @@
+/*
+ *  Copyright (c) 2019 The WebM 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 "test/codec_factory.h"
+#include "test/encode_test_driver.h"
+#include "test/util.h"
+#include "test/video_source.h"
+#include "third_party/googletest/src/include/gtest/gtest.h"
+
+namespace {
+
+const int kVideoSourceWidth = 320;
+const int kVideoSourceHeight = 240;
+const int kFramesToEncode = 3;
+
+// A video source that exposes functions to set the timebase, framerate and
+// starting pts.
+class DummyTimebaseVideoSource : public ::libvpx_test::DummyVideoSource {
+ public:
+  // Parameters num and den set the timebase for the video source.
+  DummyTimebaseVideoSource(int num, int den)
+      : timebase_({ num, den }), framerate_numerator_(30),
+        framerate_denominator_(1), starting_pts_(0) {
+    SetSize(kVideoSourceWidth, kVideoSourceHeight);
+    set_limit(kFramesToEncode);
+  }
+
+  void SetFramerate(int numerator, int denominator) {
+    framerate_numerator_ = numerator;
+    framerate_denominator_ = denominator;
+  }
+
+  // Returns one frames duration in timebase units as a double.
+  double FrameDuration() const {
+    return (static_cast<double>(timebase_.den) / timebase_.num) /
+           (static_cast<double>(framerate_numerator_) / framerate_denominator_);
+  }
+
+  vpx_codec_pts_t pts() const override {
+    return static_cast<vpx_codec_pts_t>(frame_ * FrameDuration() +
+                                        starting_pts_ + 0.5);
+  }
+
+  unsigned long duration() const override {
+    return static_cast<unsigned long>(FrameDuration() + 0.5);
+  }
+
+  vpx_rational_t timebase() const override { return timebase_; }
+
+  void set_starting_pts(int64_t starting_pts) { starting_pts_ = starting_pts; }
+
+ private:
+  vpx_rational_t timebase_;
+  int framerate_numerator_;
+  int framerate_denominator_;
+  int64_t starting_pts_;
+};
+
+class TimestampTest
+    : public ::libvpx_test::EncoderTest,
+      public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> {
+ protected:
+  TimestampTest() : EncoderTest(GET_PARAM(0)) {}
+  ~TimestampTest() override = default;
+
+  void SetUp() override {
+    InitializeConfig();
+    SetMode(GET_PARAM(1));
+  }
+};
+
+// Tests encoding in millisecond timebase.
+TEST_P(TimestampTest, EncodeFrames) {
+  DummyTimebaseVideoSource video(1, 1000);
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+}
+
+TEST_P(TimestampTest, TestMicrosecondTimebase) {
+  // Set the timebase to microseconds.
+  DummyTimebaseVideoSource video(1, 1000000);
+  video.set_limit(1);
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+}
+
+TEST_P(TimestampTest, TestVpxRollover) {
+  DummyTimebaseVideoSource video(1, 1000);
+  video.set_starting_pts(922337170351ll);
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+}
+
+VP8_INSTANTIATE_TEST_SUITE(TimestampTest,
+                           ::testing::Values(::libvpx_test::kTwoPassGood));
+VP9_INSTANTIATE_TEST_SUITE(TimestampTest,
+                           ::testing::Values(::libvpx_test::kTwoPassGood));
+}  // namespace