1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <gtest/gtest.h> 18 #include <inttypes.h> 19 20 #define LOG_TAG "CameraBurstTest" 21 //#define LOG_NDEBUG 0 22 #include <utils/Log.h> 23 #include <utils/Timers.h> 24 25 #include <cmath> 26 27 #include "CameraStreamFixture.h" 28 #include "TestExtensions.h" 29 30 #define CAMERA_FRAME_TIMEOUT 1000000000LL //nsecs (1 secs) 31 #define CAMERA_HEAP_COUNT 2 //HALBUG: 1 means registerBuffers fails 32 #define CAMERA_BURST_DEBUGGING 0 33 #define CAMERA_FRAME_BURST_COUNT 10 34 35 /* constants for the exposure test */ 36 #define CAMERA_EXPOSURE_DOUBLE 2 37 #define CAMERA_EXPOSURE_DOUBLING_THRESHOLD 1.0f 38 #define CAMERA_EXPOSURE_DOUBLING_COUNT 4 39 #define CAMERA_EXPOSURE_FORMAT CAMERA_STREAM_AUTO_CPU_FORMAT 40 #define CAMERA_EXPOSURE_STARTING 100000 // 1/10ms, up to 51.2ms with 10 steps 41 42 #define USEC 1000LL // in ns 43 #define MSEC 1000000LL // in ns 44 #define SEC 1000000000LL // in ns 45 46 #if CAMERA_BURST_DEBUGGING 47 #define dout std::cout 48 #else 49 #define dout if (0) std::cout 50 #endif 51 52 #define WARN_UNLESS(condition) (!(condition) ? (std::cerr) : (std::ostream(NULL)) << "Warning: ") 53 #define WARN_LE(exp, act) WARN_UNLESS((exp) <= (act)) 54 #define WARN_LT(exp, act) WARN_UNLESS((exp) < (act)) 55 #define WARN_GT(exp, act) WARN_UNLESS((exp) > (act)) 56 57 using namespace android; 58 using namespace android::camera2; 59 60 namespace android { 61 namespace camera2 { 62 namespace tests { 63 64 static CameraStreamParams STREAM_PARAMETERS = { 65 /*mFormat*/ CAMERA_EXPOSURE_FORMAT, 66 /*mHeapCount*/ CAMERA_HEAP_COUNT 67 }; 68 69 class CameraBurstTest 70 : public ::testing::Test, 71 public CameraStreamFixture { 72 73 public: 74 CameraBurstTest() : CameraStreamFixture(STREAM_PARAMETERS) { 75 TEST_EXTENSION_FORKING_CONSTRUCTOR; 76 77 if (HasFatalFailure()) { 78 return; 79 } 80 81 CreateStream(); 82 } 83 84 ~CameraBurstTest() { 85 TEST_EXTENSION_FORKING_DESTRUCTOR; 86 87 if (mDevice.get()) { 88 mDevice->waitUntilDrained(); 89 } 90 DeleteStream(); 91 } 92 93 virtual void SetUp() { 94 TEST_EXTENSION_FORKING_SET_UP; 95 } 96 virtual void TearDown() { 97 TEST_EXTENSION_FORKING_TEAR_DOWN; 98 } 99 100 /* this assumes the format is YUV420sp or flexible YUV */ 101 long long TotalBrightness(const CpuConsumer::LockedBuffer& imgBuffer, 102 int *underexposed, 103 int *overexposed) const { 104 105 const uint8_t* buf = imgBuffer.data; 106 size_t stride = imgBuffer.stride; 107 108 /* iterate over the Y plane only */ 109 long long acc = 0; 110 111 *underexposed = 0; 112 *overexposed = 0; 113 114 for (size_t y = 0; y < imgBuffer.height; ++y) { 115 for (size_t x = 0; x < imgBuffer.width; ++x) { 116 const uint8_t p = buf[y * stride + x]; 117 118 if (p == 0) { 119 if (underexposed) { 120 ++*underexposed; 121 } 122 continue; 123 } else if (p == 255) { 124 if (overexposed) { 125 ++*overexposed; 126 } 127 continue; 128 } 129 130 acc += p; 131 } 132 } 133 134 return acc; 135 } 136 137 // Parses a comma-separated string list into a Vector 138 template<typename T> 139 void ParseList(const char *src, Vector<T> &list) { 140 std::istringstream s(src); 141 while (!s.eof()) { 142 char c = s.peek(); 143 if (c == ',' || c == ' ') { 144 s.ignore(1, EOF); 145 continue; 146 } 147 T val; 148 s >> val; 149 list.push_back(val); 150 } 151 } 152 153 }; 154 155 TEST_F(CameraBurstTest, ManualExposureControl) { 156 157 TEST_EXTENSION_FORKING_INIT; 158 159 // Range of valid exposure times, in nanoseconds 160 int64_t minExp, maxExp; 161 { 162 camera_metadata_ro_entry exposureTimeRange = 163 GetStaticEntry(ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE); 164 165 ASSERT_EQ(2u, exposureTimeRange.count); 166 minExp = exposureTimeRange.data.i64[0]; 167 maxExp = exposureTimeRange.data.i64[1]; 168 } 169 170 dout << "Min exposure is " << minExp; 171 dout << " max exposure is " << maxExp << std::endl; 172 173 // Calculate some set of valid exposure times for each request 174 int64_t exposures[CAMERA_FRAME_BURST_COUNT]; 175 exposures[0] = CAMERA_EXPOSURE_STARTING; 176 for (int i = 1; i < CAMERA_FRAME_BURST_COUNT; ++i) { 177 exposures[i] = exposures[i-1] * CAMERA_EXPOSURE_DOUBLE; 178 } 179 // Our calculated exposure times should be in [minExp, maxExp] 180 EXPECT_LE(minExp, exposures[0]) 181 << "Minimum exposure range is too high, wanted at most " 182 << exposures[0] << "ns"; 183 EXPECT_GE(maxExp, exposures[CAMERA_FRAME_BURST_COUNT-1]) 184 << "Maximum exposure range is too low, wanted at least " 185 << exposures[CAMERA_FRAME_BURST_COUNT-1] << "ns"; 186 187 // Create a preview request, turning off all 3A 188 CameraMetadata previewRequest; 189 ASSERT_EQ(OK, mDevice->createDefaultRequest(CAMERA2_TEMPLATE_PREVIEW, 190 &previewRequest)); 191 { 192 Vector<int32_t> outputStreamIds; 193 outputStreamIds.push(mStreamId); 194 ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_OUTPUT_STREAMS, 195 outputStreamIds)); 196 197 // Disable all 3A routines 198 uint8_t cmOff = static_cast<uint8_t>(ANDROID_CONTROL_MODE_OFF); 199 ASSERT_EQ(OK, previewRequest.update(ANDROID_CONTROL_MODE, 200 &cmOff, 1)); 201 202 int requestId = 1; 203 ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_ID, 204 &requestId, 1)); 205 206 if (CAMERA_BURST_DEBUGGING) { 207 int frameCount = 0; 208 ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_FRAME_COUNT, 209 &frameCount, 1)); 210 } 211 } 212 213 if (CAMERA_BURST_DEBUGGING) { 214 previewRequest.dump(STDOUT_FILENO); 215 } 216 217 // Submit capture requests 218 for (int i = 0; i < CAMERA_FRAME_BURST_COUNT; ++i) { 219 CameraMetadata tmpRequest = previewRequest; 220 ASSERT_EQ(OK, tmpRequest.update(ANDROID_SENSOR_EXPOSURE_TIME, 221 &exposures[i], 1)); 222 ALOGV("Submitting capture request %d with exposure %"PRId64, i, 223 exposures[i]); 224 dout << "Capture request " << i << " exposure is " 225 << (exposures[i]/1e6f) << std::endl; 226 ASSERT_EQ(OK, mDevice->capture(tmpRequest)); 227 } 228 229 dout << "Buffer dimensions " << mWidth << "x" << mHeight << std::endl; 230 231 float brightnesses[CAMERA_FRAME_BURST_COUNT]; 232 // Get each frame (metadata) and then the buffer. Calculate brightness. 233 for (int i = 0; i < CAMERA_FRAME_BURST_COUNT; ++i) { 234 ALOGV("Reading capture request %d with exposure %"PRId64, i, exposures[i]); 235 ASSERT_EQ(OK, mDevice->waitForNextFrame(CAMERA_FRAME_TIMEOUT)); 236 ALOGV("Reading capture request-1 %d", i); 237 CaptureResult result; 238 ASSERT_EQ(OK, mDevice->getNextResult(&result)); 239 ALOGV("Reading capture request-2 %d", i); 240 241 ASSERT_EQ(OK, mFrameListener->waitForFrame(CAMERA_FRAME_TIMEOUT)); 242 ALOGV("We got the frame now"); 243 244 CpuConsumer::LockedBuffer imgBuffer; 245 ASSERT_EQ(OK, mCpuConsumer->lockNextBuffer(&imgBuffer)); 246 247 int underexposed, overexposed; 248 long long brightness = TotalBrightness(imgBuffer, &underexposed, 249 &overexposed); 250 float avgBrightness = brightness * 1.0f / 251 (mWidth * mHeight - (underexposed + overexposed)); 252 ALOGV("Total brightness for frame %d was %lld (underexposed %d, " 253 "overexposed %d), avg %f", i, brightness, underexposed, 254 overexposed, avgBrightness); 255 dout << "Average brightness (frame " << i << ") was " << avgBrightness 256 << " (underexposed " << underexposed << ", overexposed " 257 << overexposed << ")" << std::endl; 258 259 ASSERT_EQ(OK, mCpuConsumer->unlockBuffer(imgBuffer)); 260 261 brightnesses[i] = avgBrightness; 262 } 263 264 // Calculate max consecutive frame exposure doubling 265 float prev = brightnesses[0]; 266 int doubling_count = 1; 267 int max_doubling_count = 0; 268 for (int i = 1; i < CAMERA_FRAME_BURST_COUNT; ++i) { 269 if (fabs(brightnesses[i] - prev*CAMERA_EXPOSURE_DOUBLE) 270 <= CAMERA_EXPOSURE_DOUBLING_THRESHOLD) { 271 doubling_count++; 272 } 273 else { 274 max_doubling_count = std::max(max_doubling_count, doubling_count); 275 doubling_count = 1; 276 } 277 prev = brightnesses[i]; 278 } 279 280 dout << "max doubling count: " << max_doubling_count << std::endl; 281 282 /** 283 * Make this check warning only, since the brightness calculation is not reliable 284 * and we have separate test to cover this case. Plus it is pretty subtle to make 285 * it right without complicating the test too much. 286 */ 287 WARN_LE(CAMERA_EXPOSURE_DOUBLING_COUNT, max_doubling_count) 288 << "average brightness should double at least " 289 << CAMERA_EXPOSURE_DOUBLING_COUNT 290 << " times over each consecutive frame as the exposure is doubled" 291 << std::endl; 292 } 293 294 /** 295 * This test varies exposure time, frame duration, and sensitivity for a 296 * burst of captures. It picks values by default, but the selection can be 297 * overridden with the environment variables 298 * CAMERA2_TEST_VARIABLE_BURST_EXPOSURE_TIMES 299 * CAMERA2_TEST_VARIABLE_BURST_FRAME_DURATIONS 300 * CAMERA2_TEST_VARIABLE_BURST_SENSITIVITIES 301 * which must all be a list of comma-separated values, and each list must be 302 * the same length. In addition, if the environment variable 303 * CAMERA2_TEST_VARIABLE_BURST_DUMP_FRAMES 304 * is set to 1, then the YUV buffers are dumped into files named 305 * "camera2_test_variable_burst_frame_NNN.yuv" 306 * 307 * For example: 308 * $ setenv CAMERA2_TEST_VARIABLE_BURST_EXPOSURE_TIMES 10000000,20000000 309 * $ setenv CAMERA2_TEST_VARIABLE_BURST_FRAME_DURATIONS 40000000,40000000 310 * $ setenv CAMERA2_TEST_VARIABLE_BURST_SENSITIVITIES 200,100 311 * $ setenv CAMERA2_TEST_VARIABLE_BURST_DUMP_FRAMES 1 312 * $ /data/nativetest/camera2_test/camera2_test --gtest_filter="*VariableBurst" 313 */ 314 TEST_F(CameraBurstTest, VariableBurst) { 315 316 TEST_EXTENSION_FORKING_INIT; 317 318 // Bounds for checking frame duration is within range 319 const nsecs_t DURATION_UPPER_BOUND = 10 * MSEC; 320 const nsecs_t DURATION_LOWER_BOUND = 20 * MSEC; 321 322 // Threshold for considering two captures to have equivalent exposure value, 323 // as a ratio of the smaller EV to the larger EV. 324 const float EV_MATCH_BOUND = 0.95; 325 // Bound for two captures with equivalent exp values to have the same 326 // measured brightness, in 0-255 luminance. 327 const float BRIGHTNESS_MATCH_BOUND = 5; 328 329 // Environment variables to look for to override test settings 330 const char *expEnv = "CAMERA2_TEST_VARIABLE_BURST_EXPOSURE_TIMES"; 331 const char *durationEnv = "CAMERA2_TEST_VARIABLE_BURST_FRAME_DURATIONS"; 332 const char *sensitivityEnv = "CAMERA2_TEST_VARIABLE_BURST_SENSITIVITIES"; 333 const char *dumpFrameEnv = "CAMERA2_TEST_VARIABLE_BURST_DUMP_FRAMES"; 334 335 // Range of valid exposure times, in nanoseconds 336 int64_t minExp = 0, maxExp = 0; 337 // List of valid sensor sensitivities 338 Vector<int32_t> sensitivities; 339 // Range of valid frame durations, in nanoseconds 340 int64_t minDuration = 0, maxDuration = 0; 341 342 { 343 camera_metadata_ro_entry exposureTimeRange = 344 GetStaticEntry(ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE); 345 346 EXPECT_EQ(2u, exposureTimeRange.count) << "Bad exposure time range tag." 347 "Using default values"; 348 if (exposureTimeRange.count == 2) { 349 minExp = exposureTimeRange.data.i64[0]; 350 maxExp = exposureTimeRange.data.i64[1]; 351 } 352 353 EXPECT_LT(0, minExp) << "Minimum exposure time is 0"; 354 EXPECT_LT(0, maxExp) << "Maximum exposure time is 0"; 355 EXPECT_LE(minExp, maxExp) << "Minimum exposure is greater than maximum"; 356 357 if (minExp == 0) { 358 minExp = 1 * MSEC; // Fallback minimum exposure time 359 } 360 361 if (maxExp == 0) { 362 maxExp = 10 * SEC; // Fallback maximum exposure time 363 } 364 } 365 366 camera_metadata_ro_entry hardwareLevel = 367 GetStaticEntry(ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL); 368 ASSERT_EQ(1u, hardwareLevel.count); 369 uint8_t level = hardwareLevel.data.u8[0]; 370 ASSERT_GE(level, ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED); 371 ASSERT_LE(level, ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_FULL); 372 if (level == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED) { 373 const ::testing::TestInfo* const test_info = 374 ::testing::UnitTest::GetInstance()->current_test_info(); 375 std::cerr << "Skipping test " 376 << test_info->test_case_name() << "." 377 << test_info->name() 378 << " because HAL hardware supported level is limited " 379 << std::endl; 380 return; 381 } 382 383 dout << "Stream size is " << mWidth << " x " << mHeight << std::endl; 384 dout << "Valid exposure range is: " << 385 minExp << " - " << maxExp << " ns " << std::endl; 386 387 { 388 camera_metadata_ro_entry sensivityRange = 389 GetStaticEntry(ANDROID_SENSOR_INFO_SENSITIVITY_RANGE); 390 EXPECT_EQ(2u, sensivityRange.count) << "No sensitivity range listed." 391 "Falling back to default set."; 392 int32_t minSensitivity = 100; 393 int32_t maxSensitivity = 800; 394 if (sensivityRange.count == 2) { 395 ASSERT_GT(sensivityRange.data.i32[0], 0); 396 ASSERT_GT(sensivityRange.data.i32[1], 0); 397 minSensitivity = sensivityRange.data.i32[0]; 398 maxSensitivity = sensivityRange.data.i32[1]; 399 } 400 int32_t count = (maxSensitivity - minSensitivity + 99) / 100; 401 sensitivities.push_back(minSensitivity); 402 for (int i = 1; i < count; i++) { 403 sensitivities.push_back(minSensitivity + i * 100); 404 } 405 sensitivities.push_back(maxSensitivity); 406 } 407 408 dout << "Available sensitivities: "; 409 for (size_t i = 0; i < sensitivities.size(); i++) { 410 dout << sensitivities[i] << " "; 411 } 412 dout << std::endl; 413 414 { 415 if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_2) { 416 camera_metadata_ro_entry availableProcessedSizes = 417 GetStaticEntry(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES); 418 419 camera_metadata_ro_entry availableProcessedMinFrameDurations = 420 GetStaticEntry(ANDROID_SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS); 421 422 EXPECT_EQ(availableProcessedSizes.count, 423 availableProcessedMinFrameDurations.count * 2) << 424 "The number of minimum frame durations doesn't match the number of " 425 "available sizes. Using fallback values"; 426 427 if (availableProcessedSizes.count == 428 availableProcessedMinFrameDurations.count * 2) { 429 bool gotSize = false; 430 for (size_t i = 0; i < availableProcessedSizes.count; i += 2) { 431 if (availableProcessedSizes.data.i32[i] == mWidth && 432 availableProcessedSizes.data.i32[i+1] == mHeight) { 433 gotSize = true; 434 minDuration = availableProcessedMinFrameDurations.data.i64[i/2]; 435 } 436 } 437 EXPECT_TRUE(gotSize) << "Can't find stream size in list of " 438 "available sizes: " << mWidth << ", " << mHeight; 439 } 440 if (minDuration == 0) { 441 minDuration = 1 * SEC / 30; // Fall back to 30 fps as minimum duration 442 } 443 } else { 444 minDuration = getMinFrameDurationFor( 445 HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, mWidth, mHeight); 446 } 447 ASSERT_LT(0, minDuration); 448 449 camera_metadata_ro_entry maxFrameDuration = 450 GetStaticEntry(ANDROID_SENSOR_INFO_MAX_FRAME_DURATION); 451 452 EXPECT_EQ(1u, maxFrameDuration.count) << "No valid maximum frame duration"; 453 454 if (maxFrameDuration.count == 1) { 455 maxDuration = maxFrameDuration.data.i64[0]; 456 } 457 458 EXPECT_GT(maxDuration, 0) << "Max duration is 0 or not given, using fallback"; 459 460 if (maxDuration == 0) { 461 maxDuration = 10 * SEC; // Fall back to 10 seconds as max duration 462 } 463 464 } 465 dout << "Available frame duration range for configured stream size: " 466 << minDuration << " - " << maxDuration << " ns" << std::endl; 467 468 // Get environment variables if set 469 const char *expVal = getenv(expEnv); 470 const char *durationVal = getenv(durationEnv); 471 const char *sensitivityVal = getenv(sensitivityEnv); 472 473 bool gotExp = (expVal != NULL); 474 bool gotDuration = (durationVal != NULL); 475 bool gotSensitivity = (sensitivityVal != NULL); 476 477 // All or none must be provided if using override envs 478 ASSERT_TRUE( (gotDuration && gotExp && gotSensitivity) || 479 (!gotDuration && !gotExp && !gotSensitivity) ) << 480 "Incomplete set of environment variable overrides provided"; 481 482 Vector<int64_t> expList, durationList; 483 Vector<int32_t> sensitivityList; 484 if (gotExp) { 485 ParseList(expVal, expList); 486 ParseList(durationVal, durationList); 487 ParseList(sensitivityVal, sensitivityList); 488 489 ASSERT_TRUE( 490 (expList.size() == durationList.size()) && 491 (durationList.size() == sensitivityList.size())) << 492 "Mismatched sizes in env lists, or parse error"; 493 494 dout << "Using burst list from environment with " << expList.size() << 495 " captures" << std::endl; 496 } else { 497 // Create a default set of controls based on the available ranges 498 499 int64_t e; 500 int64_t d; 501 int32_t s; 502 503 // Exposure ramp 504 505 e = minExp; 506 d = minDuration; 507 s = sensitivities[0]; 508 while (e < maxExp) { 509 expList.push_back(e); 510 durationList.push_back(d); 511 sensitivityList.push_back(s); 512 e = e * 2; 513 } 514 e = maxExp; 515 expList.push_back(e); 516 durationList.push_back(d); 517 sensitivityList.push_back(s); 518 519 // Duration ramp 520 521 e = 30 * MSEC; 522 d = minDuration; 523 s = sensitivities[0]; 524 while (d < maxDuration) { 525 // make sure exposure <= frame duration 526 expList.push_back(e > d ? d : e); 527 durationList.push_back(d); 528 sensitivityList.push_back(s); 529 d = d * 2; 530 } 531 532 // Sensitivity ramp 533 534 e = 30 * MSEC; 535 d = 30 * MSEC; 536 d = d > minDuration ? d : minDuration; 537 for (size_t i = 0; i < sensitivities.size(); i++) { 538 expList.push_back(e); 539 durationList.push_back(d); 540 sensitivityList.push_back(sensitivities[i]); 541 } 542 543 // Constant-EV ramp, duration == exposure 544 545 e = 30 * MSEC; // at ISO 100 546 for (size_t i = 0; i < sensitivities.size(); i++) { 547 int64_t e_adj = e * 100 / sensitivities[i]; 548 expList.push_back(e_adj); 549 durationList.push_back(e_adj > minDuration ? e_adj : minDuration); 550 sensitivityList.push_back(sensitivities[i]); 551 } 552 553 dout << "Default burst sequence created with " << expList.size() << 554 " entries" << std::endl; 555 } 556 557 // Validate the list, but warn only 558 for (size_t i = 0; i < expList.size(); i++) { 559 EXPECT_GE(maxExp, expList[i]) 560 << "Capture " << i << " exposure too long: " << expList[i]; 561 EXPECT_LE(minExp, expList[i]) 562 << "Capture " << i << " exposure too short: " << expList[i]; 563 EXPECT_GE(maxDuration, durationList[i]) 564 << "Capture " << i << " duration too long: " << durationList[i]; 565 EXPECT_LE(minDuration, durationList[i]) 566 << "Capture " << i << " duration too short: " << durationList[i]; 567 bool validSensitivity = false; 568 for (size_t j = 0; j < sensitivities.size(); j++) { 569 if (sensitivityList[i] == sensitivities[j]) { 570 validSensitivity = true; 571 break; 572 } 573 } 574 EXPECT_TRUE(validSensitivity) 575 << "Capture " << i << " sensitivity not in list: " << sensitivityList[i]; 576 } 577 578 // Check if debug yuv dumps are requested 579 580 bool dumpFrames = false; 581 { 582 const char *frameDumpVal = getenv(dumpFrameEnv); 583 if (frameDumpVal != NULL) { 584 if (frameDumpVal[0] == '1') dumpFrames = true; 585 } 586 } 587 588 dout << "Dumping YUV frames " << 589 (dumpFrames ? "enabled, not checking timing" : "disabled") << std::endl; 590 591 // Create a base preview request, turning off all 3A 592 CameraMetadata previewRequest; 593 ASSERT_EQ(OK, mDevice->createDefaultRequest(CAMERA2_TEMPLATE_PREVIEW, 594 &previewRequest)); 595 { 596 Vector<int32_t> outputStreamIds; 597 outputStreamIds.push(mStreamId); 598 ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_OUTPUT_STREAMS, 599 outputStreamIds)); 600 601 // Disable all 3A routines 602 uint8_t cmOff = static_cast<uint8_t>(ANDROID_CONTROL_MODE_OFF); 603 ASSERT_EQ(OK, previewRequest.update(ANDROID_CONTROL_MODE, 604 &cmOff, 1)); 605 606 int requestId = 1; 607 ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_ID, 608 &requestId, 1)); 609 } 610 611 // Submit capture requests 612 613 for (size_t i = 0; i < expList.size(); ++i) { 614 CameraMetadata tmpRequest = previewRequest; 615 ASSERT_EQ(OK, tmpRequest.update(ANDROID_SENSOR_EXPOSURE_TIME, 616 &expList[i], 1)); 617 ASSERT_EQ(OK, tmpRequest.update(ANDROID_SENSOR_FRAME_DURATION, 618 &durationList[i], 1)); 619 ASSERT_EQ(OK, tmpRequest.update(ANDROID_SENSOR_SENSITIVITY, 620 &sensitivityList[i], 1)); 621 ALOGV("Submitting capture %zu with exposure %"PRId64", frame duration %"PRId64", sensitivity %d", 622 i, expList[i], durationList[i], sensitivityList[i]); 623 dout << "Capture request " << i << 624 ": exposure is " << (expList[i]/1e6f) << " ms" << 625 ", frame duration is " << (durationList[i]/1e6f) << " ms" << 626 ", sensitivity is " << sensitivityList[i] << 627 std::endl; 628 ASSERT_EQ(OK, mDevice->capture(tmpRequest)); 629 } 630 631 Vector<float> brightnesses; 632 Vector<nsecs_t> captureTimes; 633 brightnesses.setCapacity(expList.size()); 634 captureTimes.setCapacity(expList.size()); 635 636 // Get each frame (metadata) and then the buffer. Calculate brightness. 637 for (size_t i = 0; i < expList.size(); ++i) { 638 639 ALOGV("Reading request %zu", i); 640 dout << "Waiting for capture " << i << ": " << 641 " exposure " << (expList[i]/1e6f) << " ms," << 642 " frame duration " << (durationList[i]/1e6f) << " ms," << 643 " sensitivity " << sensitivityList[i] << 644 std::endl; 645 646 // Set wait limit based on expected frame duration, or minimum timeout 647 int64_t waitLimit = CAMERA_FRAME_TIMEOUT; 648 if (expList[i] * 2 > waitLimit) waitLimit = expList[i] * 2; 649 if (durationList[i] * 2 > waitLimit) waitLimit = durationList[i] * 2; 650 651 ASSERT_EQ(OK, mDevice->waitForNextFrame(waitLimit)); 652 ALOGV("Reading capture request-1 %zu", i); 653 CaptureResult result; 654 ASSERT_EQ(OK, mDevice->getNextResult(&result)); 655 ALOGV("Reading capture request-2 %zu", i); 656 657 ASSERT_EQ(OK, mFrameListener->waitForFrame(CAMERA_FRAME_TIMEOUT)); 658 ALOGV("We got the frame now"); 659 660 captureTimes.push_back(systemTime()); 661 662 CpuConsumer::LockedBuffer imgBuffer; 663 ASSERT_EQ(OK, mCpuConsumer->lockNextBuffer(&imgBuffer)); 664 665 int underexposed, overexposed; 666 float avgBrightness = 0; 667 long long brightness = TotalBrightness(imgBuffer, &underexposed, 668 &overexposed); 669 int numValidPixels = mWidth * mHeight - (underexposed + overexposed); 670 if (numValidPixels != 0) { 671 avgBrightness = brightness * 1.0f / numValidPixels; 672 } else if (underexposed < overexposed) { 673 avgBrightness = 255; 674 } 675 676 ALOGV("Total brightness for frame %zu was %lld (underexposed %d, " 677 "overexposed %d), avg %f", i, brightness, underexposed, 678 overexposed, avgBrightness); 679 dout << "Average brightness (frame " << i << ") was " << avgBrightness 680 << " (underexposed " << underexposed << ", overexposed " 681 << overexposed << ")" << std::endl; 682 brightnesses.push_back(avgBrightness); 683 684 if (i != 0) { 685 float prevEv = static_cast<float>(expList[i - 1]) * sensitivityList[i - 1]; 686 float currentEv = static_cast<float>(expList[i]) * sensitivityList[i]; 687 float evRatio = (prevEv > currentEv) ? (currentEv / prevEv) : 688 (prevEv / currentEv); 689 if ( evRatio > EV_MATCH_BOUND ) { 690 WARN_LT(fabs(brightnesses[i] - brightnesses[i - 1]), 691 BRIGHTNESS_MATCH_BOUND) << 692 "Capture brightness different from previous, even though " 693 "they have the same EV value. Ev now: " << currentEv << 694 ", previous: " << prevEv << ". Brightness now: " << 695 brightnesses[i] << ", previous: " << brightnesses[i-1] << 696 std::endl; 697 } 698 // Only check timing if not saving to disk, since that slows things 699 // down substantially 700 if (!dumpFrames) { 701 nsecs_t timeDelta = captureTimes[i] - captureTimes[i-1]; 702 nsecs_t expectedDelta = expList[i] > durationList[i] ? 703 expList[i] : durationList[i]; 704 WARN_LT(timeDelta, expectedDelta + DURATION_UPPER_BOUND) << 705 "Capture took " << timeDelta << " ns to receive, but expected" 706 " frame duration was " << expectedDelta << " ns." << 707 std::endl; 708 WARN_GT(timeDelta, expectedDelta - DURATION_LOWER_BOUND) << 709 "Capture took " << timeDelta << " ns to receive, but expected" 710 " frame duration was " << expectedDelta << " ns." << 711 std::endl; 712 dout << "Time delta from previous frame: " << timeDelta / 1e6 << 713 " ms. Expected " << expectedDelta / 1e6 << " ms" << std::endl; 714 } 715 } 716 717 if (dumpFrames) { 718 String8 dumpName = 719 String8::format("/data/local/tmp/camera2_test_variable_burst_frame_%03zu.yuv", i); 720 dout << " Writing YUV dump to " << dumpName << std::endl; 721 DumpYuvToFile(dumpName, imgBuffer); 722 } 723 724 ASSERT_EQ(OK, mCpuConsumer->unlockBuffer(imgBuffer)); 725 } 726 727 } 728 729 } 730 } 731 } 732
