1/*
2 *  Copyright (c) 2015 The WebM project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10#include <algorithm>
11#include "third_party/googletest/src/include/gtest/gtest.h"
12#include "test/codec_factory.h"
13#include "test/encode_test_driver.h"
14#include "test/util.h"
15#include "test/y4m_video_source.h"
16
17namespace {
18
19// Check if any pixel in a 16x16 macroblock varies between frames.
20int CheckMb(const vpx_image_t &current, const vpx_image_t &previous, int mb_r,
21            int mb_c) {
22  for (int plane = 0; plane < 3; plane++) {
23    int r = 16 * mb_r;
24    int c0 = 16 * mb_c;
25    int r_top = std::min(r + 16, static_cast<int>(current.d_h));
26    int c_top = std::min(c0 + 16, static_cast<int>(current.d_w));
27    r = std::max(r, 0);
28    c0 = std::max(c0, 0);
29    if (plane > 0 && current.x_chroma_shift) {
30      c_top = (c_top + 1) >> 1;
31      c0 >>= 1;
32    }
33    if (plane > 0 && current.y_chroma_shift) {
34      r_top = (r_top + 1) >> 1;
35      r >>= 1;
36    }
37    for (; r < r_top; ++r) {
38      for (int c = c0; c < c_top; ++c) {
39        if (current.planes[plane][current.stride[plane] * r + c] !=
40            previous.planes[plane][previous.stride[plane] * r + c]) {
41          return 1;
42        }
43      }
44    }
45  }
46  return 0;
47}
48
49void GenerateMap(int mb_rows, int mb_cols, const vpx_image_t &current,
50                 const vpx_image_t &previous, uint8_t *map) {
51  for (int mb_r = 0; mb_r < mb_rows; ++mb_r) {
52    for (int mb_c = 0; mb_c < mb_cols; ++mb_c) {
53      map[mb_r * mb_cols + mb_c] = CheckMb(current, previous, mb_r, mb_c);
54    }
55  }
56}
57
58const int kAqModeCyclicRefresh = 3;
59
60class ActiveMapRefreshTest
61    : public ::libvpx_test::EncoderTest,
62      public ::libvpx_test::CodecTestWith2Params<libvpx_test::TestMode, int> {
63 protected:
64  ActiveMapRefreshTest() : EncoderTest(GET_PARAM(0)) {}
65  virtual ~ActiveMapRefreshTest() {}
66
67  virtual void SetUp() {
68    InitializeConfig();
69    SetMode(GET_PARAM(1));
70    cpu_used_ = GET_PARAM(2);
71  }
72
73  virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
74                                  ::libvpx_test::Encoder *encoder) {
75    ::libvpx_test::Y4mVideoSource *y4m_video =
76        static_cast<libvpx_test::Y4mVideoSource *>(video);
77    if (video->frame() == 1) {
78      encoder->Control(VP8E_SET_CPUUSED, cpu_used_);
79      encoder->Control(VP9E_SET_AQ_MODE, kAqModeCyclicRefresh);
80    } else if (video->frame() >= 2 && video->img()) {
81      vpx_image_t *current = video->img();
82      vpx_image_t *previous = y4m_holder_->img();
83      ASSERT_TRUE(previous != NULL);
84      vpx_active_map_t map = vpx_active_map_t();
85      const int width = static_cast<int>(current->d_w);
86      const int height = static_cast<int>(current->d_h);
87      const int mb_width = (width + 15) / 16;
88      const int mb_height = (height + 15) / 16;
89      uint8_t *active_map = new uint8_t[mb_width * mb_height];
90      GenerateMap(mb_height, mb_width, *current, *previous, active_map);
91      map.cols = mb_width;
92      map.rows = mb_height;
93      map.active_map = active_map;
94      encoder->Control(VP8E_SET_ACTIVEMAP, &map);
95      delete[] active_map;
96    }
97    if (video->img()) {
98      y4m_video->SwapBuffers(y4m_holder_);
99    }
100  }
101
102  int cpu_used_;
103  ::libvpx_test::Y4mVideoSource *y4m_holder_;
104};
105
106TEST_P(ActiveMapRefreshTest, Test) {
107  cfg_.g_lag_in_frames = 0;
108  cfg_.g_profile = 1;
109  cfg_.rc_target_bitrate = 600;
110  cfg_.rc_resize_allowed = 0;
111  cfg_.rc_min_quantizer = 8;
112  cfg_.rc_max_quantizer = 30;
113  cfg_.g_pass = VPX_RC_ONE_PASS;
114  cfg_.rc_end_usage = VPX_CBR;
115  cfg_.kf_max_dist = 90000;
116
117  ::libvpx_test::Y4mVideoSource video("desktop_credits.y4m", 0, 30);
118  ::libvpx_test::Y4mVideoSource video_holder("desktop_credits.y4m", 0, 30);
119  video_holder.Begin();
120  y4m_holder_ = &video_holder;
121
122  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
123}
124
125VP9_INSTANTIATE_TEST_CASE(ActiveMapRefreshTest,
126                          ::testing::Values(::libvpx_test::kRealTime),
127                          ::testing::Range(5, 6));
128}  // namespace
129