1 /*
2 * Copyright (c) 2012 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 "./vpx_config.h"
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/i420_video_source.h"
15 #include "test/util.h"
16 #include "test/y4m_video_source.h"
17 #include "vpx/vpx_codec.h"
18
19 namespace {
20
21 class DatarateTestLarge
22 : public ::libvpx_test::EncoderTest,
23 public ::libvpx_test::CodecTestWith2Params<libvpx_test::TestMode, int> {
24 public:
DatarateTestLarge()25 DatarateTestLarge() : EncoderTest(GET_PARAM(0)) {}
26
~DatarateTestLarge()27 virtual ~DatarateTestLarge() {}
28
29 protected:
SetUp()30 virtual void SetUp() {
31 InitializeConfig();
32 SetMode(GET_PARAM(1));
33 set_cpu_used_ = GET_PARAM(2);
34 ResetModel();
35 }
36
ResetModel()37 virtual void ResetModel() {
38 last_pts_ = 0;
39 bits_in_buffer_model_ = cfg_.rc_target_bitrate * cfg_.rc_buf_initial_sz;
40 frame_number_ = 0;
41 first_drop_ = 0;
42 bits_total_ = 0;
43 duration_ = 0.0;
44 denoiser_offon_test_ = 0;
45 denoiser_offon_period_ = -1;
46 gf_boost_ = 0;
47 use_roi_ = false;
48 }
49
PreEncodeFrameHook(::libvpx_test::VideoSource * video,::libvpx_test::Encoder * encoder)50 virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
51 ::libvpx_test::Encoder *encoder) {
52 if (video->frame() == 0) {
53 encoder->Control(VP8E_SET_NOISE_SENSITIVITY, denoiser_on_);
54 encoder->Control(VP8E_SET_CPUUSED, set_cpu_used_);
55 encoder->Control(VP8E_SET_GF_CBR_BOOST_PCT, gf_boost_);
56 }
57
58 if (use_roi_) {
59 encoder->Control(VP8E_SET_ROI_MAP, &roi_);
60 }
61
62 if (denoiser_offon_test_) {
63 ASSERT_GT(denoiser_offon_period_, 0)
64 << "denoiser_offon_period_ is not positive.";
65 if ((video->frame() + 1) % denoiser_offon_period_ == 0) {
66 // Flip denoiser_on_ periodically
67 denoiser_on_ ^= 1;
68 }
69 encoder->Control(VP8E_SET_NOISE_SENSITIVITY, denoiser_on_);
70 }
71
72 const vpx_rational_t tb = video->timebase();
73 timebase_ = static_cast<double>(tb.num) / tb.den;
74 duration_ = 0;
75 }
76
FramePktHook(const vpx_codec_cx_pkt_t * pkt)77 virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) {
78 // Time since last timestamp = duration.
79 vpx_codec_pts_t duration = pkt->data.frame.pts - last_pts_;
80
81 // TODO(jimbankoski): Remove these lines when the issue:
82 // http://code.google.com/p/webm/issues/detail?id=496 is fixed.
83 // For now the codec assumes buffer starts at starting buffer rate
84 // plus one frame's time.
85 if (last_pts_ == 0) duration = 1;
86
87 // Add to the buffer the bits we'd expect from a constant bitrate server.
88 bits_in_buffer_model_ += static_cast<int64_t>(
89 duration * timebase_ * cfg_.rc_target_bitrate * 1000);
90
91 /* Test the buffer model here before subtracting the frame. Do so because
92 * the way the leaky bucket model works in libvpx is to allow the buffer to
93 * empty - and then stop showing frames until we've got enough bits to
94 * show one. As noted in comment below (issue 495), this does not currently
95 * apply to key frames. For now exclude key frames in condition below. */
96 const bool key_frame =
97 (pkt->data.frame.flags & VPX_FRAME_IS_KEY) ? true : false;
98 if (!key_frame) {
99 ASSERT_GE(bits_in_buffer_model_, 0)
100 << "Buffer Underrun at frame " << pkt->data.frame.pts;
101 }
102
103 const int64_t frame_size_in_bits = pkt->data.frame.sz * 8;
104
105 // Subtract from the buffer the bits associated with a played back frame.
106 bits_in_buffer_model_ -= frame_size_in_bits;
107
108 // Update the running total of bits for end of test datarate checks.
109 bits_total_ += frame_size_in_bits;
110
111 // If first drop not set and we have a drop set it to this time.
112 if (!first_drop_ && duration > 1) first_drop_ = last_pts_ + 1;
113
114 // Update the most recent pts.
115 last_pts_ = pkt->data.frame.pts;
116
117 // We update this so that we can calculate the datarate minus the last
118 // frame encoded in the file.
119 bits_in_last_frame_ = frame_size_in_bits;
120
121 ++frame_number_;
122 }
123
EndPassHook(void)124 virtual void EndPassHook(void) {
125 if (bits_total_) {
126 const double file_size_in_kb = bits_total_ / 1000.; // bits per kilobit
127
128 duration_ = (last_pts_ + 1) * timebase_;
129
130 // Effective file datarate includes the time spent prebuffering.
131 effective_datarate_ = (bits_total_ - bits_in_last_frame_) / 1000.0 /
132 (cfg_.rc_buf_initial_sz / 1000.0 + duration_);
133
134 file_datarate_ = file_size_in_kb / duration_;
135 }
136 }
137
DenoiserLevelsTest()138 virtual void DenoiserLevelsTest() {
139 cfg_.rc_buf_initial_sz = 500;
140 cfg_.rc_dropframe_thresh = 1;
141 cfg_.rc_max_quantizer = 56;
142 cfg_.rc_end_usage = VPX_CBR;
143 ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
144 288, 30, 1, 0, 140);
145 for (int j = 1; j < 5; ++j) {
146 // Run over the denoiser levels.
147 // For the temporal denoiser (#if CONFIG_TEMPORAL_DENOISING) the level j
148 // refers to the 4 denoiser modes: denoiserYonly, denoiserOnYUV,
149 // denoiserOnAggressive, and denoiserOnAdaptive.
150 denoiser_on_ = j;
151 cfg_.rc_target_bitrate = 300;
152 ResetModel();
153 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
154 ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
155 << " The datarate for the file exceeds the target!";
156
157 ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
158 << " The datarate for the file missed the target!";
159 }
160 }
161
DenoiserOffOnTest()162 virtual void DenoiserOffOnTest() {
163 cfg_.rc_buf_initial_sz = 500;
164 cfg_.rc_dropframe_thresh = 1;
165 cfg_.rc_max_quantizer = 56;
166 cfg_.rc_end_usage = VPX_CBR;
167 ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
168 288, 30, 1, 0, 299);
169 cfg_.rc_target_bitrate = 300;
170 ResetModel();
171 // The denoiser is off by default.
172 denoiser_on_ = 0;
173 // Set the offon test flag.
174 denoiser_offon_test_ = 1;
175 denoiser_offon_period_ = 100;
176 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
177 ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
178 << " The datarate for the file exceeds the target!";
179 ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
180 << " The datarate for the file missed the target!";
181 }
182
BasicBufferModelTest()183 virtual void BasicBufferModelTest() {
184 denoiser_on_ = 0;
185 cfg_.rc_buf_initial_sz = 500;
186 cfg_.rc_dropframe_thresh = 1;
187 cfg_.rc_max_quantizer = 56;
188 cfg_.rc_end_usage = VPX_CBR;
189 // 2 pass cbr datarate control has a bug hidden by the small # of
190 // frames selected in this encode. The problem is that even if the buffer is
191 // negative we produce a keyframe on a cutscene. Ignoring datarate
192 // constraints
193 // TODO(jimbankoski): ( Fix when issue
194 // http://code.google.com/p/webm/issues/detail?id=495 is addressed. )
195 ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
196 288, 30, 1, 0, 140);
197
198 // There is an issue for low bitrates in real-time mode, where the
199 // effective_datarate slightly overshoots the target bitrate.
200 // This is same the issue as noted about (#495).
201 // TODO(jimbankoski/marpan): Update test to run for lower bitrates (< 100),
202 // when the issue is resolved.
203 for (int i = 100; i < 800; i += 200) {
204 cfg_.rc_target_bitrate = i;
205 ResetModel();
206 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
207 ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
208 << " The datarate for the file exceeds the target!";
209 ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
210 << " The datarate for the file missed the target!";
211 }
212 }
213
ChangingDropFrameThreshTest()214 virtual void ChangingDropFrameThreshTest() {
215 denoiser_on_ = 0;
216 cfg_.rc_buf_initial_sz = 500;
217 cfg_.rc_max_quantizer = 36;
218 cfg_.rc_end_usage = VPX_CBR;
219 cfg_.rc_target_bitrate = 200;
220 cfg_.kf_mode = VPX_KF_DISABLED;
221
222 const int frame_count = 40;
223 ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
224 288, 30, 1, 0, frame_count);
225
226 // Here we check that the first dropped frame gets earlier and earlier
227 // as the drop frame threshold is increased.
228
229 const int kDropFrameThreshTestStep = 30;
230 vpx_codec_pts_t last_drop = frame_count;
231 for (int i = 1; i < 91; i += kDropFrameThreshTestStep) {
232 cfg_.rc_dropframe_thresh = i;
233 ResetModel();
234 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
235 ASSERT_LE(first_drop_, last_drop)
236 << " The first dropped frame for drop_thresh " << i
237 << " > first dropped frame for drop_thresh "
238 << i - kDropFrameThreshTestStep;
239 last_drop = first_drop_;
240 }
241 }
242
DropFramesMultiThreadsTest()243 virtual void DropFramesMultiThreadsTest() {
244 denoiser_on_ = 0;
245 cfg_.rc_buf_initial_sz = 500;
246 cfg_.rc_dropframe_thresh = 30;
247 cfg_.rc_max_quantizer = 56;
248 cfg_.rc_end_usage = VPX_CBR;
249 cfg_.g_threads = 2;
250
251 ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
252 288, 30, 1, 0, 140);
253 cfg_.rc_target_bitrate = 200;
254 ResetModel();
255 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
256 ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
257 << " The datarate for the file exceeds the target!";
258
259 ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
260 << " The datarate for the file missed the target!";
261 }
262
263 vpx_codec_pts_t last_pts_;
264 int64_t bits_in_buffer_model_;
265 double timebase_;
266 int frame_number_;
267 vpx_codec_pts_t first_drop_;
268 int64_t bits_total_;
269 double duration_;
270 double file_datarate_;
271 double effective_datarate_;
272 int64_t bits_in_last_frame_;
273 int denoiser_on_;
274 int denoiser_offon_test_;
275 int denoiser_offon_period_;
276 int set_cpu_used_;
277 int gf_boost_;
278 bool use_roi_;
279 vpx_roi_map_t roi_;
280 };
281
282 #if CONFIG_TEMPORAL_DENOISING
283 // Check basic datarate targeting, for a single bitrate, but loop over the
284 // various denoiser settings.
TEST_P(DatarateTestLarge,DenoiserLevels)285 TEST_P(DatarateTestLarge, DenoiserLevels) { DenoiserLevelsTest(); }
286
287 // Check basic datarate targeting, for a single bitrate, when denoiser is off
288 // and on.
TEST_P(DatarateTestLarge,DenoiserOffOn)289 TEST_P(DatarateTestLarge, DenoiserOffOn) { DenoiserOffOnTest(); }
290 #endif // CONFIG_TEMPORAL_DENOISING
291
TEST_P(DatarateTestLarge,BasicBufferModel)292 TEST_P(DatarateTestLarge, BasicBufferModel) { BasicBufferModelTest(); }
293
TEST_P(DatarateTestLarge,ChangingDropFrameThresh)294 TEST_P(DatarateTestLarge, ChangingDropFrameThresh) {
295 ChangingDropFrameThreshTest();
296 }
297
TEST_P(DatarateTestLarge,DropFramesMultiThreads)298 TEST_P(DatarateTestLarge, DropFramesMultiThreads) {
299 DropFramesMultiThreadsTest();
300 }
301
302 class DatarateTestRealTime : public DatarateTestLarge {
303 public:
~DatarateTestRealTime()304 virtual ~DatarateTestRealTime() {}
305 };
306
307 #if CONFIG_TEMPORAL_DENOISING
308 // Check basic datarate targeting, for a single bitrate, but loop over the
309 // various denoiser settings.
TEST_P(DatarateTestRealTime,DenoiserLevels)310 TEST_P(DatarateTestRealTime, DenoiserLevels) { DenoiserLevelsTest(); }
311
312 // Check basic datarate targeting, for a single bitrate, when denoiser is off
313 // and on.
TEST_P(DatarateTestRealTime,DenoiserOffOn)314 TEST_P(DatarateTestRealTime, DenoiserOffOn) {}
315 #endif // CONFIG_TEMPORAL_DENOISING
316
TEST_P(DatarateTestRealTime,BasicBufferModel)317 TEST_P(DatarateTestRealTime, BasicBufferModel) { BasicBufferModelTest(); }
318
TEST_P(DatarateTestRealTime,ChangingDropFrameThresh)319 TEST_P(DatarateTestRealTime, ChangingDropFrameThresh) {
320 ChangingDropFrameThreshTest();
321 }
322
TEST_P(DatarateTestRealTime,DropFramesMultiThreads)323 TEST_P(DatarateTestRealTime, DropFramesMultiThreads) {
324 DropFramesMultiThreadsTest();
325 }
326
TEST_P(DatarateTestRealTime,RegionOfInterest)327 TEST_P(DatarateTestRealTime, RegionOfInterest) {
328 denoiser_on_ = 0;
329 cfg_.rc_buf_initial_sz = 500;
330 cfg_.rc_dropframe_thresh = 0;
331 cfg_.rc_max_quantizer = 56;
332 cfg_.rc_end_usage = VPX_CBR;
333 // Encode using multiple threads.
334 cfg_.g_threads = 2;
335
336 ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
337 30, 1, 0, 300);
338 cfg_.rc_target_bitrate = 450;
339 cfg_.g_w = 352;
340 cfg_.g_h = 288;
341
342 ResetModel();
343
344 // Set ROI parameters
345 use_roi_ = true;
346 memset(&roi_, 0, sizeof(roi_));
347
348 roi_.rows = (cfg_.g_h + 15) / 16;
349 roi_.cols = (cfg_.g_w + 15) / 16;
350
351 roi_.delta_q[0] = 0;
352 roi_.delta_q[1] = -20;
353 roi_.delta_q[2] = 0;
354 roi_.delta_q[3] = 0;
355
356 roi_.delta_lf[0] = 0;
357 roi_.delta_lf[1] = -20;
358 roi_.delta_lf[2] = 0;
359 roi_.delta_lf[3] = 0;
360
361 roi_.static_threshold[0] = 0;
362 roi_.static_threshold[1] = 1000;
363 roi_.static_threshold[2] = 0;
364 roi_.static_threshold[3] = 0;
365
366 // Use 2 states: 1 is center square, 0 is the rest.
367 roi_.roi_map =
368 (uint8_t *)calloc(roi_.rows * roi_.cols, sizeof(*roi_.roi_map));
369 for (unsigned int i = 0; i < roi_.rows; ++i) {
370 for (unsigned int j = 0; j < roi_.cols; ++j) {
371 if (i > (roi_.rows >> 2) && i < ((roi_.rows * 3) >> 2) &&
372 j > (roi_.cols >> 2) && j < ((roi_.cols * 3) >> 2)) {
373 roi_.roi_map[i * roi_.cols + j] = 1;
374 }
375 }
376 }
377
378 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
379 ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
380 << " The datarate for the file exceeds the target!";
381
382 ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
383 << " The datarate for the file missed the target!";
384
385 free(roi_.roi_map);
386 }
387
TEST_P(DatarateTestRealTime,GFBoost)388 TEST_P(DatarateTestRealTime, GFBoost) {
389 denoiser_on_ = 0;
390 cfg_.rc_buf_initial_sz = 500;
391 cfg_.rc_dropframe_thresh = 0;
392 cfg_.rc_max_quantizer = 56;
393 cfg_.rc_end_usage = VPX_CBR;
394 cfg_.g_error_resilient = 0;
395
396 ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
397 30, 1, 0, 300);
398 cfg_.rc_target_bitrate = 300;
399 ResetModel();
400 // Apply a gf boost.
401 gf_boost_ = 50;
402
403 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
404 ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
405 << " The datarate for the file exceeds the target!";
406
407 ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
408 << " The datarate for the file missed the target!";
409 }
410
411 VP8_INSTANTIATE_TEST_CASE(DatarateTestLarge, ALL_TEST_MODES,
412 ::testing::Values(0));
413 VP8_INSTANTIATE_TEST_CASE(DatarateTestRealTime,
414 ::testing::Values(::libvpx_test::kRealTime),
415 ::testing::Values(-6, -12));
416 } // namespace
417