1 files changed, 223 insertions, 0 deletions
diff --git a/third_party/aom/test/arf_freq_test.cc b/third_party/aom/test/arf_freq_test.cc
new file mode 100644
index 0000000000..083f4022f4
--- /dev/null
+++ b/third_party/aom/test/arf_freq_test.cc
@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 2016, 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 "third_party/googletest/src/googletest/include/gtest/gtest.h"
+
+#include "test/codec_factory.h"
+#include "test/encode_test_driver.h"
+#include "test/util.h"
+#include "test/y4m_video_source.h"
+#include "test/yuv_video_source.h"
+#include "av1/encoder/ratectrl.h"
+
+namespace {
+
+const unsigned int kFrames = 100;
+const int kBitrate = 500;
+
+#define ARF_NOT_SEEN 1000001
+#define ARF_SEEN_ONCE 1000000
+
+typedef struct {
+  const char *filename;
+  unsigned int width;
+  unsigned int height;
+  unsigned int framerate_num;
+  unsigned int framerate_den;
+  unsigned int input_bit_depth;
+  aom_img_fmt fmt;
+  aom_bit_depth_t bit_depth;
+  unsigned int profile;
+} TestVideoParam;
+
+typedef struct {
+  libaom_test::TestMode mode;
+  int cpu_used;
+} TestEncodeParam;
+
+const TestVideoParam kTestVectors[] = {
+  // artificially increase framerate to trigger default check
+  { "hantro_collage_w352h288.yuv", 352, 288, 5000, 1, 8, AOM_IMG_FMT_I420,
+    AOM_BITS_8, 0 },
+  { "hantro_collage_w352h288.yuv", 352, 288, 30, 1, 8, AOM_IMG_FMT_I420,
+    AOM_BITS_8, 0 },
+  { "rush_hour_444.y4m", 352, 288, 30, 1, 8, AOM_IMG_FMT_I444, AOM_BITS_8, 1 },
+  // Add list of profile 2/3 test videos here ...
+};
+
+const TestEncodeParam kEncodeVectors[] = {
+  { ::libaom_test::kOnePassGood, 2 }, { ::libaom_test::kOnePassGood, 5 },
+  { ::libaom_test::kTwoPassGood, 1 }, { ::libaom_test::kTwoPassGood, 2 },
+  { ::libaom_test::kTwoPassGood, 5 }, { ::libaom_test::kRealTime, 5 },
+};
+
+const int kMinArfVectors[] = {
+  // NOTE: 0 refers to the default built-in logic in:
+  //       av1_rc_get_default_min_gf_interval(...)
+  0, 4, 8, 12, 15
+};
+
+int is_extension_y4m(const char *filename) {
+  const char *dot = strrchr(filename, '.');
+  if (!dot || dot == filename)
+    return 0;
+  else
+    return !strcmp(dot, ".y4m");
+}
+
+class ArfFreqTestLarge
+    : public ::libaom_test::CodecTestWith3Params<TestVideoParam,
+                                                 TestEncodeParam, int>,
+      public ::libaom_test::EncoderTest {
+ protected:
+  ArfFreqTestLarge()
+      : EncoderTest(GET_PARAM(0)), test_video_param_(GET_PARAM(1)),
+        test_encode_param_(GET_PARAM(2)), min_arf_requested_(GET_PARAM(3)) {}
+
+  virtual ~ArfFreqTestLarge() {}
+
+  virtual void SetUp() {
+    InitializeConfig();
+    SetMode(test_encode_param_.mode);
+    if (test_encode_param_.mode != ::libaom_test::kRealTime) {
+      cfg_.g_lag_in_frames = 25;
+      cfg_.rc_end_usage = AOM_VBR;
+    } else {
+      cfg_.g_lag_in_frames = 0;
+      cfg_.rc_end_usage = AOM_CBR;
+      cfg_.rc_buf_sz = 1000;
+      cfg_.rc_buf_initial_sz = 500;
+      cfg_.rc_buf_optimal_sz = 600;
+    }
+  }
+
+  virtual void BeginPassHook(unsigned int) {
+    min_run_ = ARF_NOT_SEEN;
+    run_of_visible_frames_ = 0;
+  }
+
+  int GetNumFramesInPkt(const aom_codec_cx_pkt_t *pkt) {
+    const uint8_t *buffer = reinterpret_cast<uint8_t *>(pkt->data.frame.buf);
+    const uint8_t marker = buffer[pkt->data.frame.sz - 1];
+    const int mag = ((marker >> 3) & 3) + 1;
+    int frames = (marker & 0x7) + 1;
+    const unsigned int index_sz = 2 + mag * frames;
+    // Check for superframe or not.
+    // Assume superframe has only one visible frame, the rest being
+    // invisible. If superframe index is not found, then there is only
+    // one frame.
+    if (!((marker & 0xe0) == 0xc0 && pkt->data.frame.sz >= index_sz &&
+          buffer[pkt->data.frame.sz - index_sz] == marker)) {
+      frames = 1;
+    }
+    return frames;
+  }
+
+  virtual void FramePktHook(const aom_codec_cx_pkt_t *pkt) {
+    if (pkt->kind != AOM_CODEC_CX_FRAME_PKT) return;
+    const int frames = GetNumFramesInPkt(pkt);
+    if (frames == 1) {
+      run_of_visible_frames_++;
+    } else if (frames == 2) {
+      if (min_run_ == ARF_NOT_SEEN) {
+        min_run_ = ARF_SEEN_ONCE;
+      } else if (min_run_ == ARF_SEEN_ONCE ||
+                 run_of_visible_frames_ < min_run_) {
+        min_run_ = run_of_visible_frames_;
+      }
+      run_of_visible_frames_ = 1;
+    } else {
+      min_run_ = 0;
+      run_of_visible_frames_ = 1;
+    }
+  }
+
+  virtual void PreEncodeFrameHook(::libaom_test::VideoSource *video,
+                                  ::libaom_test::Encoder *encoder) {
+    if (video->frame() == 0) {
+      encoder->Control(AV1E_SET_FRAME_PARALLEL_DECODING, 1);
+      encoder->Control(AV1E_SET_TILE_COLUMNS, 4);
+      encoder->Control(AOME_SET_CPUUSED, test_encode_param_.cpu_used);
+      encoder->Control(AV1E_SET_MIN_GF_INTERVAL, min_arf_requested_);
+      if (test_encode_param_.mode != ::libaom_test::kRealTime) {
+        encoder->Control(AOME_SET_ENABLEAUTOALTREF, 1);
+        encoder->Control(AOME_SET_ARNR_MAXFRAMES, 7);
+        encoder->Control(AOME_SET_ARNR_STRENGTH, 5);
+      }
+    }
+  }
+
+  int GetMinVisibleRun() const { return min_run_; }
+
+  int GetMinArfDistanceRequested() const {
+    if (min_arf_requested_)
+      return min_arf_requested_;
+    else
+      return av1_rc_get_default_min_gf_interval(
+          test_video_param_.width, test_video_param_.height,
+          (double)test_video_param_.framerate_num /
+              test_video_param_.framerate_den);
+  }
+
+  TestVideoParam test_video_param_;
+  TestEncodeParam test_encode_param_;
+
+ private:
+  int min_arf_requested_;
+  int min_run_;
+  int run_of_visible_frames_;
+};
+
+TEST_P(ArfFreqTestLarge, MinArfFreqTest) {
+  cfg_.rc_target_bitrate = kBitrate;
+  cfg_.g_error_resilient = 0;
+  cfg_.g_profile = test_video_param_.profile;
+  cfg_.g_input_bit_depth = test_video_param_.input_bit_depth;
+  cfg_.g_bit_depth = test_video_param_.bit_depth;
+  init_flags_ = AOM_CODEC_USE_PSNR;
+  if (cfg_.g_bit_depth > 8) init_flags_ |= AOM_CODEC_USE_HIGHBITDEPTH;
+
+  testing::internal::scoped_ptr<libaom_test::VideoSource> video;
+  if (is_extension_y4m(test_video_param_.filename)) {
+    video.reset(new libaom_test::Y4mVideoSource(test_video_param_.filename, 0,
+                                                kFrames));
+  } else {
+    video.reset(new libaom_test::YUVVideoSource(
+        test_video_param_.filename, test_video_param_.fmt,
+        test_video_param_.width, test_video_param_.height,
+        test_video_param_.framerate_num, test_video_param_.framerate_den, 0,
+        kFrames));
+  }
+
+  ASSERT_NO_FATAL_FAILURE(RunLoop(video.get()));
+  const int min_run = GetMinVisibleRun();
+  const int min_arf_dist_requested = GetMinArfDistanceRequested();
+  if (min_run != ARF_NOT_SEEN && min_run != ARF_SEEN_ONCE) {
+    const int min_arf_dist = min_run + 1;
+    EXPECT_GE(min_arf_dist, min_arf_dist_requested);
+  }
+}
+
+#if CONFIG_AV1_ENCODER
+// TODO(angiebird): 25-29 fail in high bitdepth mode.
+// TODO(zoeliu): This ArfFreqTest does not work with BWDREF_FRAME, as
+// BWDREF_FRAME is also a non-show frame, and the minimum run between two
+// consecutive BWDREF_FRAME's may vary between 1 and any arbitrary positive
+// number as long as it does not exceed the gf_group interval.
+INSTANTIATE_TEST_CASE_P(
+    DISABLED_AV1, ArfFreqTestLarge,
+    ::testing::Combine(
+        ::testing::Values(
+            static_cast<const libaom_test::CodecFactory *>(&libaom_test::kAV1)),
+        ::testing::ValuesIn(kTestVectors), ::testing::ValuesIn(kEncodeVectors),
+        ::testing::ValuesIn(kMinArfVectors)));
+#endif  // CONFIG_AV1_ENCODER
+}  // namespace