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
11 #include <memory>
12
13 #include "gtest/gtest.h"
14
15 #include "test/codec_factory.h"
16 #include "test/encode_test_driver.h"
17 #include "test/util.h"
18 #include "test/y4m_video_source.h"
19 #include "test/yuv_video_source.h"
20 #include "vp9/encoder/vp9_ratectrl.h"
21 #include "vpx_config.h"
22
23 namespace {
24
25 const unsigned int kFrames = 100;
26 const int kBitrate = 500;
27
28 #define ARF_NOT_SEEN 1000001
29 #define ARF_SEEN_ONCE 1000000
30
31 typedef struct {
32 const char *filename;
33 unsigned int width;
34 unsigned int height;
35 unsigned int framerate_num;
36 unsigned int framerate_den;
37 unsigned int input_bit_depth;
38 vpx_img_fmt fmt;
39 vpx_bit_depth_t bit_depth;
40 unsigned int profile;
41 } TestVideoParam;
42
43 typedef struct {
44 libvpx_test::TestMode mode;
45 int cpu_used;
46 } TestEncodeParam;
47
48 const TestVideoParam kTestVectors[] = {
49 // artificially increase framerate to trigger default check
50 { "hantro_collage_w352h288.yuv", 352, 288, 5000, 1, 8, VPX_IMG_FMT_I420,
51 VPX_BITS_8, 0 },
52 { "hantro_collage_w352h288.yuv", 352, 288, 30, 1, 8, VPX_IMG_FMT_I420,
53 VPX_BITS_8, 0 },
54 { "rush_hour_444.y4m", 352, 288, 30, 1, 8, VPX_IMG_FMT_I444, VPX_BITS_8, 1 },
55 #if CONFIG_VP9_HIGHBITDEPTH
56 // Add list of profile 2/3 test videos here ...
57 #endif // CONFIG_VP9_HIGHBITDEPTH
58 };
59
60 const TestEncodeParam kEncodeVectors[] = {
61 { ::libvpx_test::kOnePassGood, 2 }, { ::libvpx_test::kOnePassGood, 5 },
62 { ::libvpx_test::kTwoPassGood, 1 }, { ::libvpx_test::kTwoPassGood, 2 },
63 { ::libvpx_test::kTwoPassGood, 5 }, { ::libvpx_test::kRealTime, 5 },
64 };
65
66 const int kMinArfVectors[] = {
67 // NOTE: 0 refers to the default built-in logic in:
68 // vp9_rc_get_default_min_gf_interval(...)
69 0, 4, 8, 12, 15
70 };
71
is_extension_y4m(const char * filename)72 int is_extension_y4m(const char *filename) {
73 const char *dot = strrchr(filename, '.');
74 if (!dot || dot == filename) {
75 return 0;
76 } else {
77 return !strcmp(dot, ".y4m");
78 }
79 }
80
81 class ArfFreqTest
82 : public ::libvpx_test::EncoderTest,
83 public ::libvpx_test::CodecTestWith3Params<TestVideoParam,
84 TestEncodeParam, int> {
85 protected:
ArfFreqTest()86 ArfFreqTest()
87 : EncoderTest(GET_PARAM(0)), test_video_param_(GET_PARAM(1)),
88 test_encode_param_(GET_PARAM(2)), min_arf_requested_(GET_PARAM(3)) {}
89
90 ~ArfFreqTest() override = default;
91
SetUp()92 void SetUp() override {
93 InitializeConfig();
94 SetMode(test_encode_param_.mode);
95 if (test_encode_param_.mode != ::libvpx_test::kRealTime) {
96 cfg_.g_lag_in_frames = 25;
97 cfg_.rc_end_usage = VPX_VBR;
98 } else {
99 cfg_.g_lag_in_frames = 0;
100 cfg_.rc_end_usage = VPX_CBR;
101 cfg_.rc_buf_sz = 1000;
102 cfg_.rc_buf_initial_sz = 500;
103 cfg_.rc_buf_optimal_sz = 600;
104 }
105 dec_cfg_.threads = 4;
106 }
107
BeginPassHook(unsigned int)108 void BeginPassHook(unsigned int) override {
109 min_run_ = ARF_NOT_SEEN;
110 run_of_visible_frames_ = 0;
111 }
112
GetNumFramesInPkt(const vpx_codec_cx_pkt_t * pkt)113 int GetNumFramesInPkt(const vpx_codec_cx_pkt_t *pkt) {
114 const uint8_t *buffer = reinterpret_cast<uint8_t *>(pkt->data.frame.buf);
115 const uint8_t marker = buffer[pkt->data.frame.sz - 1];
116 const int mag = ((marker >> 3) & 3) + 1;
117 int frames = (marker & 0x7) + 1;
118 const unsigned int index_sz = 2 + mag * frames;
119 // Check for superframe or not.
120 // Assume superframe has only one visible frame, the rest being
121 // invisible. If superframe index is not found, then there is only
122 // one frame.
123 if (!((marker & 0xe0) == 0xc0 && pkt->data.frame.sz >= index_sz &&
124 buffer[pkt->data.frame.sz - index_sz] == marker)) {
125 frames = 1;
126 }
127 return frames;
128 }
129
FramePktHook(const vpx_codec_cx_pkt_t * pkt)130 void FramePktHook(const vpx_codec_cx_pkt_t *pkt) override {
131 if (pkt->kind != VPX_CODEC_CX_FRAME_PKT) return;
132 const int frames = GetNumFramesInPkt(pkt);
133 if (frames == 1) {
134 run_of_visible_frames_++;
135 } else if (frames == 2) {
136 if (min_run_ == ARF_NOT_SEEN) {
137 min_run_ = ARF_SEEN_ONCE;
138 } else if (min_run_ == ARF_SEEN_ONCE ||
139 run_of_visible_frames_ < min_run_) {
140 min_run_ = run_of_visible_frames_;
141 }
142 run_of_visible_frames_ = 1;
143 } else {
144 min_run_ = 0;
145 run_of_visible_frames_ = 1;
146 }
147 }
148
PreEncodeFrameHook(::libvpx_test::VideoSource * video,::libvpx_test::Encoder * encoder)149 void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
150 ::libvpx_test::Encoder *encoder) override {
151 if (video->frame() == 0) {
152 encoder->Control(VP9E_SET_FRAME_PARALLEL_DECODING, 1);
153 encoder->Control(VP9E_SET_TILE_COLUMNS, 4);
154 encoder->Control(VP8E_SET_CPUUSED, test_encode_param_.cpu_used);
155 encoder->Control(VP9E_SET_MIN_GF_INTERVAL, min_arf_requested_);
156 if (test_encode_param_.mode != ::libvpx_test::kRealTime) {
157 encoder->Control(VP8E_SET_ENABLEAUTOALTREF, 1);
158 encoder->Control(VP8E_SET_ARNR_MAXFRAMES, 7);
159 encoder->Control(VP8E_SET_ARNR_STRENGTH, 5);
160 encoder->Control(VP8E_SET_ARNR_TYPE, 3);
161 }
162 }
163 }
164
GetMinVisibleRun() const165 int GetMinVisibleRun() const { return min_run_; }
166
GetMinArfDistanceRequested() const167 int GetMinArfDistanceRequested() const {
168 if (min_arf_requested_) {
169 return min_arf_requested_;
170 } else {
171 return vp9_rc_get_default_min_gf_interval(
172 test_video_param_.width, test_video_param_.height,
173 (double)test_video_param_.framerate_num /
174 test_video_param_.framerate_den);
175 }
176 }
177
178 TestVideoParam test_video_param_;
179 TestEncodeParam test_encode_param_;
180
181 private:
182 int min_arf_requested_;
183 int min_run_;
184 int run_of_visible_frames_;
185 };
186
TEST_P(ArfFreqTest,MinArfFreqTest)187 TEST_P(ArfFreqTest, MinArfFreqTest) {
188 cfg_.rc_target_bitrate = kBitrate;
189 cfg_.g_error_resilient = 0;
190 cfg_.g_profile = test_video_param_.profile;
191 cfg_.g_input_bit_depth = test_video_param_.input_bit_depth;
192 cfg_.g_bit_depth = test_video_param_.bit_depth;
193 init_flags_ = VPX_CODEC_USE_PSNR;
194 if (cfg_.g_bit_depth > 8) init_flags_ |= VPX_CODEC_USE_HIGHBITDEPTH;
195
196 std::unique_ptr<libvpx_test::VideoSource> video;
197 if (is_extension_y4m(test_video_param_.filename)) {
198 video.reset(new libvpx_test::Y4mVideoSource(test_video_param_.filename, 0,
199 kFrames));
200 } else {
201 video.reset(new libvpx_test::YUVVideoSource(
202 test_video_param_.filename, test_video_param_.fmt,
203 test_video_param_.width, test_video_param_.height,
204 test_video_param_.framerate_num, test_video_param_.framerate_den, 0,
205 kFrames));
206 }
207
208 ASSERT_NO_FATAL_FAILURE(RunLoop(video.get()));
209 const int min_run = GetMinVisibleRun();
210 const int min_arf_dist_requested = GetMinArfDistanceRequested();
211 if (min_run != ARF_NOT_SEEN && min_run != ARF_SEEN_ONCE) {
212 const int min_arf_dist = min_run + 1;
213 EXPECT_GE(min_arf_dist, min_arf_dist_requested);
214 }
215 }
216
217 VP9_INSTANTIATE_TEST_SUITE(ArfFreqTest, ::testing::ValuesIn(kTestVectors),
218 ::testing::ValuesIn(kEncodeVectors),
219 ::testing::ValuesIn(kMinArfVectors));
220 } // namespace
221