1 files changed, 157 insertions, 0 deletions
diff --git a/media/libaom/src/test/datarate_test.h b/media/libaom/src/test/datarate_test.h
new file mode 100644
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+++ b/media/libaom/src/test/datarate_test.h
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2019, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include "config/aom_config.h"
+
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+#include "test/codec_factory.h"
+#include "test/encode_test_driver.h"
+#include "test/i420_video_source.h"
+#include "test/util.h"
+#include "test/y4m_video_source.h"
+#include "aom/aom_codec.h"
+
+namespace datarate_test {
+namespace {
+class DatarateTest : public ::libaom_test::EncoderTest {
+ public:
+  explicit DatarateTest(const ::libaom_test::CodecFactory *codec)
+      : EncoderTest(codec), set_cpu_used_(0), aq_mode_(0),
+        speed_change_test_(false) {}
+
+ protected:
+  virtual ~DatarateTest() {}
+
+  virtual void SetUp() {
+    InitializeConfig();
+    ResetModel();
+  }
+
+  virtual void ResetModel() {
+    last_pts_ = 0;
+    bits_in_buffer_model_ = cfg_.rc_target_bitrate * cfg_.rc_buf_initial_sz;
+    frame_number_ = 0;
+    tot_frame_number_ = 0;
+    first_drop_ = 0;
+    num_drops_ = 0;
+    // Denoiser is off by default.
+    denoiser_on_ = 0;
+    bits_total_ = 0;
+    denoiser_offon_test_ = 0;
+    denoiser_offon_period_ = -1;
+  }
+
+  virtual void PreEncodeFrameHook(::libaom_test::VideoSource *video,
+                                  ::libaom_test::Encoder *encoder) {
+    if (video->frame() == 0) {
+      encoder->Control(AOME_SET_CPUUSED, set_cpu_used_);
+      encoder->Control(AV1E_SET_AQ_MODE, aq_mode_);
+      encoder->Control(AV1E_SET_TILE_COLUMNS, 0);
+      if (cfg_.g_usage == AOM_USAGE_REALTIME) {
+        encoder->Control(AV1E_SET_DELTAQ_MODE, 0);
+        encoder->Control(AV1E_SET_ENABLE_TPL_MODEL, 0);
+        encoder->Control(AV1E_SET_ENABLE_CDEF, 1);
+        encoder->Control(AV1E_SET_COEFF_COST_UPD_FREQ, 2);
+        encoder->Control(AV1E_SET_MODE_COST_UPD_FREQ, 2);
+        encoder->Control(AV1E_SET_MV_COST_UPD_FREQ, 2);
+      }
+    }
+
+    if (speed_change_test_) {
+      if (video->frame() == 0) {
+        encoder->Control(AOME_SET_CPUUSED, 8);
+      }
+      if (video->frame() == 30) {
+        encoder->Control(AOME_SET_CPUUSED, 7);
+      }
+      if (video->frame() == 60) {
+        encoder->Control(AOME_SET_CPUUSED, 6);
+      }
+      if (video->frame() == 90) {
+        encoder->Control(AOME_SET_CPUUSED, 7);
+      }
+    }
+
+    if (denoiser_offon_test_) {
+      ASSERT_GT(denoiser_offon_period_, 0)
+          << "denoiser_offon_period_ is not positive.";
+      if ((video->frame() + 1) % denoiser_offon_period_ == 0) {
+        // Flip denoiser_on_ periodically
+        denoiser_on_ ^= 1;
+      }
+    }
+
+    encoder->Control(AV1E_SET_NOISE_SENSITIVITY, denoiser_on_);
+
+    const aom_rational_t tb = video->timebase();
+    timebase_ = static_cast<double>(tb.num) / tb.den;
+    duration_ = 0;
+  }
+
+  virtual void FramePktHook(const aom_codec_cx_pkt_t *pkt) {
+    // Time since last timestamp = duration.
+    aom_codec_pts_t duration = pkt->data.frame.pts - last_pts_;
+
+    if (duration > 1) {
+      // If first drop not set and we have a drop set it to this time.
+      if (!first_drop_) first_drop_ = last_pts_ + 1;
+      // Update the number of frame drops.
+      num_drops_ += static_cast<int>(duration - 1);
+      // Update counter for total number of frames (#frames input to encoder).
+      // Needed for setting the proper layer_id below.
+      tot_frame_number_ += static_cast<int>(duration - 1);
+    }
+
+    // Add to the buffer the bits we'd expect from a constant bitrate server.
+    bits_in_buffer_model_ += static_cast<int64_t>(
+        duration * timebase_ * cfg_.rc_target_bitrate * 1000);
+
+    // Buffer should not go negative.
+    ASSERT_GE(bits_in_buffer_model_, 0)
+        << "Buffer Underrun at frame " << pkt->data.frame.pts;
+
+    const size_t frame_size_in_bits = pkt->data.frame.sz * 8;
+
+    // Update the total encoded bits.
+    bits_total_ += frame_size_in_bits;
+
+    // Update the most recent pts.
+    last_pts_ = pkt->data.frame.pts;
+    ++frame_number_;
+    ++tot_frame_number_;
+  }
+
+  virtual void EndPassHook(void) {
+    duration_ = (last_pts_ + 1) * timebase_;
+    // Effective file datarate:
+    effective_datarate_ = (bits_total_ / 1000.0) / duration_;
+  }
+
+  aom_codec_pts_t last_pts_;
+  double timebase_;
+  int frame_number_;      // Counter for number of non-dropped/encoded frames.
+  int tot_frame_number_;  // Counter for total number of input frames.
+  int64_t bits_total_;
+  double duration_;
+  double effective_datarate_;
+  int set_cpu_used_;
+  int64_t bits_in_buffer_model_;
+  aom_codec_pts_t first_drop_;
+  int num_drops_;
+  int denoiser_on_;
+  int denoiser_offon_test_;
+  int denoiser_offon_period_;
+  unsigned int aq_mode_;
+  bool speed_change_test_;
+};
+
+}  // namespace
+}  // namespace datarate_test