Add a test for the interaction between active map and cyclic referesh.

Fails with Icac63051bf37c7355e661837b57c257d58c764fc reverted.

Change-Id: I460d7a5a74faa4daace25f911f8dc5f68e16c951

test/active_map_refresh_test.cc

@@ -0,0 +1,127 @@
+/*
+ *  Copyright (c) 2015 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 <algorithm>
+#include "third_party/googletest/src/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"
+
+namespace {
+
+// Check if any pixel in a 16x16 macroblock varies between frames.
+int CheckMb(const vpx_image_t &current, const vpx_image_t &previous,
+            int mb_r, int mb_c) {
+  for (int plane = 0; plane < 3; plane++) {
+    int r = 16 * mb_r;
+    int c0 = 16 * mb_c;
+    int r_top = std::min(r + 16, static_cast<int>(current.d_h));
+    int c_top = std::min(c0 + 16, static_cast<int>(current.d_w));
+    r = std::max(r, 0);
+    c0 = std::max(c0, 0);
+    if (plane > 0 && current.x_chroma_shift) {
+      c_top = (c_top + 1) >> 1;
+      c0 >>= 1;
+    }
+    if (plane > 0 && current.y_chroma_shift) {
+      r_top = (r_top + 1) >> 1;
+      r >>= 1;
+    }
+    for (; r < r_top; ++r) {
+      for (int c = c0; c < c_top; ++c) {
+        if (current.planes[plane][current.stride[plane] * r + c] !=
+            previous.planes[plane][previous.stride[plane] * r + c])
+          return 1;
+      }
+    }
+  }
+  return 0;
+}
+
+void GenerateMap(int mb_rows, int mb_cols, const vpx_image_t &current,
+                 const vpx_image_t &previous, uint8_t *map) {
+  for (int mb_r = 0; mb_r < mb_rows; ++mb_r) {
+    for (int mb_c = 0; mb_c < mb_cols; ++mb_c) {
+      map[mb_r * mb_cols + mb_c] = CheckMb(current, previous, mb_r, mb_c);
+    }
+  }
+}
+
+const int kAqModeCyclicRefresh = 3;
+
+class ActiveMapRefreshTest
+    : public ::libvpx_test::EncoderTest,
+      public ::libvpx_test::CodecTestWith2Params<libvpx_test::TestMode, int> {
+ protected:
+  ActiveMapRefreshTest() : EncoderTest(GET_PARAM(0)) {}
+  virtual ~ActiveMapRefreshTest() {}
+
+  virtual void SetUp() {
+    InitializeConfig();
+    SetMode(GET_PARAM(1));
+    cpu_used_ = GET_PARAM(2);
+  }
+
+  virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
+                                  ::libvpx_test::Encoder *encoder) {
+    ::libvpx_test::Y4mVideoSource *y4m_video =
+        dynamic_cast<libvpx_test::Y4mVideoSource *>(video);
+    if (video->frame() == 1) {
+      encoder->Control(VP8E_SET_CPUUSED, cpu_used_);
+      encoder->Control(VP9E_SET_AQ_MODE, kAqModeCyclicRefresh);
+    } else if (video->frame() >= 2 && video->img()) {
+      vpx_image_t *current = video->img();
+      vpx_image_t *previous = y4m_holder_->img();
+      ASSERT_TRUE(previous != NULL);
+      vpx_active_map_t map = vpx_active_map_t();
+      const int width = static_cast<int>(current->d_w);
+      const int height = static_cast<int>(current->d_h);
+      const int mb_width = (width + 15) / 16;
+      const int mb_height = (height + 15) / 16;
+      uint8_t *active_map = new uint8_t[mb_width * mb_height];
+      GenerateMap(mb_height, mb_width, *current, *previous, active_map);
+      map.cols = mb_width;
+      map.rows = mb_height;
+      map.active_map = active_map;
+      encoder->Control(VP8E_SET_ACTIVEMAP, &map);
+      delete[] active_map;
+    }
+    if (video->img()) {
+      y4m_video->SwapBuffers(y4m_holder_);
+    }
+  }
+
+  int cpu_used_;
+  ::libvpx_test::Y4mVideoSource *y4m_holder_;
+};
+
+TEST_P(ActiveMapRefreshTest, Test) {
+  cfg_.g_lag_in_frames = 0;
+  cfg_.g_profile = 1;
+  cfg_.rc_target_bitrate = 600;
+  cfg_.rc_resize_allowed = 0;
+  cfg_.rc_min_quantizer = 8;
+  cfg_.rc_max_quantizer = 30;
+  cfg_.g_pass = VPX_RC_ONE_PASS;
+  cfg_.rc_end_usage = VPX_CBR;
+  cfg_.kf_max_dist = 90000;
+
+  ::libvpx_test::Y4mVideoSource video("desktop_credits.y4m", 0, 30);
+  ::libvpx_test::Y4mVideoSource video_holder("desktop_credits.y4m", 0, 30);
+  video_holder.Begin();
+  y4m_holder_ = &video_holder;
+
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+}
+
+VP9_INSTANTIATE_TEST_CASE(ActiveMapRefreshTest,
+                          ::testing::Values(::libvpx_test::kRealTime),
+                          ::testing::Range(5, 6));
+}  // namespace

test/test-data.mk

@@ -18,6 +18,7 @@ LIBVPX_TEST_DATA-$(CONFIG_ENCODERS) += park_joy_90p_8_422.y4m
 LIBVPX_TEST_DATA-$(CONFIG_ENCODERS) += park_joy_90p_8_444.y4m
 LIBVPX_TEST_DATA-$(CONFIG_ENCODERS) += park_joy_90p_8_440.yuv
 
+LIBVPX_TEST_DATA-$(CONFIG_VP9_ENCODER) += desktop_credits.y4m
 LIBVPX_TEST_DATA-$(CONFIG_VP9_ENCODER) += niklas_1280_720_30.y4m
 LIBVPX_TEST_DATA-$(CONFIG_VP9_ENCODER) += rush_hour_444.y4m
 LIBVPX_TEST_DATA-$(CONFIG_VP9_ENCODER) += screendata.y4m

test/test-data.sha1

@@ -743,3 +743,4 @@ d06285d109ecbaef63b0cbcc44d70a129186f51c *invalid-vp90-2-03-size-224x196.webm.iv
 e60d859b0ef2b331b21740cf6cb83fabe469b079 *invalid-vp90-2-03-size-202x210.webm.ivf.s113306_r01-05_b6-.ivf
 0ae808dca4d3c1152a9576e14830b6faa39f1b4a *invalid-vp90-2-03-size-202x210.webm.ivf.s113306_r01-05_b6-.ivf.res
 9cfc855459e7549fd015c79e8eca512b2f2cb7e3 *niklas_1280_720_30.y4m
+5b5763b388b1b52a81bb82b39f7ec25c4bd3d0e1 *desktop_credits.y4m

test/test.mk

@@ -36,6 +36,7 @@ LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += external_frame_buffer_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += invalid_file_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += user_priv_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += vp9_frame_parallel_test.cc
+LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += active_map_refresh_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += active_map_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += borders_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += cpu_speed_test.cc

test/y4m_video_source.h

@@ -9,6 +9,7 @@
  */
 #ifndef TEST_Y4M_VIDEO_SOURCE_H_
 #define TEST_Y4M_VIDEO_SOURCE_H_
+#include <algorithm>
 #include <string>
 
 #include "test/video_source.h"
@@ -91,6 +92,18 @@ class Y4mVideoSource : public VideoSource {
     y4m_input_fetch_frame(&y4m_, input_file_, img_.get());
   }
 
+  // Swap buffers with another y4m source. This allows reading a new frame
+  // while keeping the old frame around. A whole Y4mSource is required and
+  // not just a vpx_image_t because of how the y4m reader manipulates
+  // vpx_image_t internals,
+  void SwapBuffers(Y4mVideoSource *other) {
+    std::swap(other->y4m_.dst_buf, y4m_.dst_buf);
+    vpx_image_t *tmp;
+    tmp = other->img_.release();
+    other->img_.reset(img_.release());
+    img_.reset(tmp);
+  }
+
  protected:
   void CloseSource() {
     y4m_input_close(&y4m_);