ZslProcessor.cpp revision c20630569431234db23b6182dd17102023dee68e
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#define LOG_TAG "Camera2-ZslProcessor" 18#define ATRACE_TAG ATRACE_TAG_CAMERA 19//#define LOG_NDEBUG 0 20//#define LOG_NNDEBUG 0 21 22#ifdef LOG_NNDEBUG 23#define ALOGVV(...) ALOGV(__VA_ARGS__) 24#else 25#define ALOGVV(...) ((void)0) 26#endif 27 28#include <utils/Log.h> 29#include <utils/Trace.h> 30 31#include "ZslProcessor.h" 32#include <gui/SurfaceTextureClient.h> 33#include "../Camera2Device.h" 34#include "../Camera2Client.h" 35 36 37namespace android { 38namespace camera2 { 39 40ZslProcessor::ZslProcessor( 41 wp<Camera2Client> client, 42 wp<CaptureSequencer> sequencer): 43 Thread(false), 44 mState(RUNNING), 45 mClient(client), 46 mSequencer(sequencer), 47 mZslBufferAvailable(false), 48 mZslStreamId(NO_STREAM), 49 mZslReprocessStreamId(NO_STREAM), 50 mFrameListHead(0), 51 mZslQueueHead(0), 52 mZslQueueTail(0) { 53 mZslQueue.insertAt(0, kZslBufferDepth); 54 mFrameList.insertAt(0, kFrameListDepth); 55 sp<CaptureSequencer> captureSequencer = mSequencer.promote(); 56 if (captureSequencer != 0) captureSequencer->setZslProcessor(this); 57} 58 59ZslProcessor::~ZslProcessor() { 60 ALOGV("%s: Exit", __FUNCTION__); 61 deleteStream(); 62} 63 64void ZslProcessor::onFrameAvailable() { 65 Mutex::Autolock l(mInputMutex); 66 if (!mZslBufferAvailable) { 67 mZslBufferAvailable = true; 68 mZslBufferAvailableSignal.signal(); 69 } 70} 71 72void ZslProcessor::onFrameAvailable(int32_t frameId, CameraMetadata &frame) { 73 Mutex::Autolock l(mInputMutex); 74 camera_metadata_entry_t entry; 75 entry = frame.find(ANDROID_SENSOR_TIMESTAMP); 76 nsecs_t timestamp = entry.data.i64[0]; 77 ALOGVV("Got preview frame for timestamp %lld", timestamp); 78 79 if (mState != RUNNING) return; 80 81 mFrameList.editItemAt(mFrameListHead).acquire(frame); 82 mFrameListHead = (mFrameListHead + 1) % kFrameListDepth; 83 84 findMatchesLocked(); 85} 86 87void ZslProcessor::onBufferReleased(buffer_handle_t *handle) { 88 Mutex::Autolock l(mInputMutex); 89 90 // Verify that the buffer is in our queue 91 size_t i = 0; 92 for (; i < mZslQueue.size(); i++) { 93 if (&(mZslQueue[i].buffer.mGraphicBuffer->handle) == handle) break; 94 } 95 if (i == mZslQueue.size()) { 96 ALOGW("%s: Released buffer %p not found in queue", 97 __FUNCTION__, handle); 98 } 99 100 // Erase entire ZSL queue since we've now completed the capture and preview 101 // is stopped. 102 clearZslQueueLocked(); 103 104 mState = RUNNING; 105} 106 107status_t ZslProcessor::updateStream(const Parameters ¶ms) { 108 ATRACE_CALL(); 109 ALOGV("%s: Configuring ZSL streams", __FUNCTION__); 110 status_t res; 111 112 Mutex::Autolock l(mInputMutex); 113 114 sp<Camera2Client> client = mClient.promote(); 115 if (client == 0) return OK; 116 sp<Camera2Device> device = client->getCameraDevice(); 117 118 if (mZslConsumer == 0) { 119 // Create CPU buffer queue endpoint 120 mZslConsumer = new BufferItemConsumer( 121 GRALLOC_USAGE_HW_CAMERA_ZSL, 122 kZslBufferDepth, 123 true); 124 mZslConsumer->setFrameAvailableListener(this); 125 mZslConsumer->setName(String8("Camera2Client::ZslConsumer")); 126 mZslWindow = new SurfaceTextureClient( 127 mZslConsumer->getProducerInterface()); 128 } 129 130 if (mZslStreamId != NO_STREAM) { 131 // Check if stream parameters have to change 132 uint32_t currentWidth, currentHeight; 133 res = device->getStreamInfo(mZslStreamId, 134 ¤tWidth, ¤tHeight, 0); 135 if (res != OK) { 136 ALOGE("%s: Camera %d: Error querying capture output stream info: " 137 "%s (%d)", __FUNCTION__, 138 client->getCameraId(), strerror(-res), res); 139 return res; 140 } 141 if (currentWidth != (uint32_t)params.fastInfo.arrayWidth || 142 currentHeight != (uint32_t)params.fastInfo.arrayHeight) { 143 res = device->deleteReprocessStream(mZslReprocessStreamId); 144 if (res != OK) { 145 ALOGE("%s: Camera %d: Unable to delete old reprocess stream " 146 "for ZSL: %s (%d)", __FUNCTION__, 147 client->getCameraId(), strerror(-res), res); 148 return res; 149 } 150 ALOGV("%s: Camera %d: Deleting stream %d since the buffer dimensions changed", 151 __FUNCTION__, client->getCameraId(), mZslStreamId); 152 res = device->deleteStream(mZslStreamId); 153 if (res != OK) { 154 ALOGE("%s: Camera %d: Unable to delete old output stream " 155 "for ZSL: %s (%d)", __FUNCTION__, 156 client->getCameraId(), strerror(-res), res); 157 return res; 158 } 159 mZslStreamId = NO_STREAM; 160 } 161 } 162 163 if (mZslStreamId == NO_STREAM) { 164 // Create stream for HAL production 165 // TODO: Sort out better way to select resolution for ZSL 166 int streamType = params.quirks.useZslFormat ? 167 (int)CAMERA2_HAL_PIXEL_FORMAT_ZSL : 168 (int)HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 169 res = device->createStream(mZslWindow, 170 params.fastInfo.arrayWidth, params.fastInfo.arrayHeight, 171 streamType, 0, 172 &mZslStreamId); 173 if (res != OK) { 174 ALOGE("%s: Camera %d: Can't create output stream for ZSL: " 175 "%s (%d)", __FUNCTION__, client->getCameraId(), 176 strerror(-res), res); 177 return res; 178 } 179 res = device->createReprocessStreamFromStream(mZslStreamId, 180 &mZslReprocessStreamId); 181 if (res != OK) { 182 ALOGE("%s: Camera %d: Can't create reprocess stream for ZSL: " 183 "%s (%d)", __FUNCTION__, client->getCameraId(), 184 strerror(-res), res); 185 return res; 186 } 187 } 188 client->registerFrameListener(Camera2Client::kPreviewRequestId, this); 189 190 return OK; 191} 192 193status_t ZslProcessor::deleteStream() { 194 ATRACE_CALL(); 195 status_t res; 196 197 Mutex::Autolock l(mInputMutex); 198 199 if (mZslStreamId != NO_STREAM) { 200 sp<Camera2Client> client = mClient.promote(); 201 if (client == 0) return OK; 202 sp<Camera2Device> device = client->getCameraDevice(); 203 204 res = device->deleteReprocessStream(mZslReprocessStreamId); 205 if (res != OK) { 206 ALOGE("%s: Camera %d: Cannot delete ZSL reprocessing stream %d: " 207 "%s (%d)", __FUNCTION__, client->getCameraId(), 208 mZslReprocessStreamId, strerror(-res), res); 209 return res; 210 } 211 212 mZslReprocessStreamId = NO_STREAM; 213 res = device->deleteStream(mZslStreamId); 214 if (res != OK) { 215 ALOGE("%s: Camera %d: Cannot delete ZSL output stream %d: " 216 "%s (%d)", __FUNCTION__, client->getCameraId(), 217 mZslStreamId, strerror(-res), res); 218 return res; 219 } 220 221 mZslWindow.clear(); 222 mZslConsumer.clear(); 223 224 mZslStreamId = NO_STREAM; 225 } 226 return OK; 227} 228 229int ZslProcessor::getStreamId() const { 230 Mutex::Autolock l(mInputMutex); 231 return mZslStreamId; 232} 233 234int ZslProcessor::getReprocessStreamId() const { 235 Mutex::Autolock l(mInputMutex); 236 return mZslReprocessStreamId; 237} 238 239status_t ZslProcessor::pushToReprocess(int32_t requestId) { 240 ALOGV("%s: Send in reprocess request with id %d", 241 __FUNCTION__, requestId); 242 Mutex::Autolock l(mInputMutex); 243 status_t res; 244 sp<Camera2Client> client = mClient.promote(); 245 246 if (client == 0) return INVALID_OPERATION; 247 248 IF_ALOGV() { 249 dumpZslQueue(-1); 250 } 251 252 if (mZslQueueTail != mZslQueueHead) { 253 CameraMetadata request; 254 size_t index = mZslQueueTail; 255 while (request.isEmpty() && index != mZslQueueHead) { 256 request = mZslQueue[index].frame; 257 index = (index + 1) % kZslBufferDepth; 258 } 259 if (request.isEmpty()) { 260 ALOGV("%s: ZSL queue has no valid frames to send yet.", 261 __FUNCTION__); 262 return NOT_ENOUGH_DATA; 263 } 264 // Verify that the frame is reasonable for reprocessing 265 266 camera_metadata_entry_t entry; 267 entry = request.find(ANDROID_CONTROL_AE_STATE); 268 if (entry.count == 0) { 269 ALOGE("%s: ZSL queue frame has no AE state field!", 270 __FUNCTION__); 271 return BAD_VALUE; 272 } 273 if (entry.data.u8[0] != ANDROID_CONTROL_AE_STATE_CONVERGED && 274 entry.data.u8[0] != ANDROID_CONTROL_AE_STATE_LOCKED) { 275 ALOGV("%s: ZSL queue frame AE state is %d, need full capture", 276 __FUNCTION__, entry.data.u8[0]); 277 return NOT_ENOUGH_DATA; 278 } 279 280 buffer_handle_t *handle = 281 &(mZslQueue[index].buffer.mGraphicBuffer->handle); 282 283 uint8_t requestType = ANDROID_REQUEST_TYPE_REPROCESS; 284 res = request.update(ANDROID_REQUEST_TYPE, 285 &requestType, 1); 286 uint8_t inputStreams[1] = { mZslReprocessStreamId }; 287 if (res == OK) request.update(ANDROID_REQUEST_INPUT_STREAMS, 288 inputStreams, 1); 289 uint8_t outputStreams[1] = { client->getCaptureStreamId() }; 290 if (res == OK) request.update(ANDROID_REQUEST_OUTPUT_STREAMS, 291 outputStreams, 1); 292 res = request.update(ANDROID_REQUEST_ID, 293 &requestId, 1); 294 295 if (res != OK ) { 296 ALOGE("%s: Unable to update frame to a reprocess request", __FUNCTION__); 297 return INVALID_OPERATION; 298 } 299 300 res = client->getCameraDevice()->clearStreamingRequest(); 301 if (res != OK) { 302 ALOGE("%s: Camera %d: Unable to stop preview for ZSL capture: " 303 "%s (%d)", 304 __FUNCTION__, client->getCameraId(), strerror(-res), res); 305 return INVALID_OPERATION; 306 } 307 // TODO: have push-and-clear be atomic 308 res = client->getCameraDevice()->pushReprocessBuffer(mZslReprocessStreamId, 309 handle, this); 310 if (res != OK) { 311 ALOGE("%s: Unable to push buffer for reprocessing: %s (%d)", 312 __FUNCTION__, strerror(-res), res); 313 return res; 314 } 315 316 res = client->getCameraDevice()->capture(request); 317 if (res != OK ) { 318 ALOGE("%s: Unable to send ZSL reprocess request to capture: %s (%d)", 319 __FUNCTION__, strerror(-res), res); 320 return res; 321 } 322 323 mState = LOCKED; 324 } else { 325 ALOGV("%s: No ZSL buffers yet", __FUNCTION__); 326 return NOT_ENOUGH_DATA; 327 } 328 return OK; 329} 330 331status_t ZslProcessor::clearZslQueue() { 332 Mutex::Autolock l(mInputMutex); 333 // If in middle of capture, can't clear out queue 334 if (mState == LOCKED) return OK; 335 336 return clearZslQueueLocked(); 337} 338 339status_t ZslProcessor::clearZslQueueLocked() { 340 for (size_t i = 0; i < mZslQueue.size(); i++) { 341 if (mZslQueue[i].buffer.mTimestamp != 0) { 342 mZslConsumer->releaseBuffer(mZslQueue[i].buffer); 343 } 344 mZslQueue.replaceAt(i); 345 } 346 mZslQueueHead = 0; 347 mZslQueueTail = 0; 348 return OK; 349} 350 351void ZslProcessor::dump(int fd, const Vector<String16>& args) const { 352 Mutex::Autolock l(mInputMutex); 353 dumpZslQueue(fd); 354} 355 356bool ZslProcessor::threadLoop() { 357 status_t res; 358 359 { 360 Mutex::Autolock l(mInputMutex); 361 while (!mZslBufferAvailable) { 362 res = mZslBufferAvailableSignal.waitRelative(mInputMutex, 363 kWaitDuration); 364 if (res == TIMED_OUT) return true; 365 } 366 mZslBufferAvailable = false; 367 } 368 369 do { 370 sp<Camera2Client> client = mClient.promote(); 371 if (client == 0) return false; 372 res = processNewZslBuffer(client); 373 } while (res == OK); 374 375 return true; 376} 377 378status_t ZslProcessor::processNewZslBuffer(sp<Camera2Client> &client) { 379 ATRACE_CALL(); 380 status_t res; 381 382 ALOGVV("Trying to get next buffer"); 383 BufferItemConsumer::BufferItem item; 384 res = mZslConsumer->acquireBuffer(&item); 385 if (res != OK) { 386 if (res != BufferItemConsumer::NO_BUFFER_AVAILABLE) { 387 ALOGE("%s: Camera %d: Error receiving ZSL image buffer: " 388 "%s (%d)", __FUNCTION__, 389 client->getCameraId(), strerror(-res), res); 390 } else { 391 ALOGVV(" No buffer"); 392 } 393 return res; 394 } 395 396 Mutex::Autolock l(mInputMutex); 397 398 if (mState == LOCKED) { 399 ALOGVV("In capture, discarding new ZSL buffers"); 400 mZslConsumer->releaseBuffer(item); 401 return OK; 402 } 403 404 ALOGVV("Got ZSL buffer: head: %d, tail: %d", mZslQueueHead, mZslQueueTail); 405 406 if ( (mZslQueueHead + 1) % kZslBufferDepth == mZslQueueTail) { 407 ALOGVV("Releasing oldest buffer"); 408 mZslConsumer->releaseBuffer(mZslQueue[mZslQueueTail].buffer); 409 mZslQueue.replaceAt(mZslQueueTail); 410 mZslQueueTail = (mZslQueueTail + 1) % kZslBufferDepth; 411 } 412 413 ZslPair &queueHead = mZslQueue.editItemAt(mZslQueueHead); 414 415 queueHead.buffer = item; 416 queueHead.frame.release(); 417 418 mZslQueueHead = (mZslQueueHead + 1) % kZslBufferDepth; 419 420 ALOGVV(" Acquired buffer, timestamp %lld", queueHead.buffer.mTimestamp); 421 422 findMatchesLocked(); 423 424 return OK; 425} 426 427void ZslProcessor::findMatchesLocked() { 428 ALOGVV("Scanning"); 429 for (size_t i = 0; i < mZslQueue.size(); i++) { 430 ZslPair &queueEntry = mZslQueue.editItemAt(i); 431 nsecs_t bufferTimestamp = queueEntry.buffer.mTimestamp; 432 IF_ALOGV() { 433 camera_metadata_entry_t entry; 434 nsecs_t frameTimestamp = 0; 435 if (!queueEntry.frame.isEmpty()) { 436 entry = queueEntry.frame.find(ANDROID_SENSOR_TIMESTAMP); 437 frameTimestamp = entry.data.i64[0]; 438 } 439 ALOGVV(" %d: b: %lld\tf: %lld", i, 440 bufferTimestamp, frameTimestamp ); 441 } 442 if (queueEntry.frame.isEmpty() && bufferTimestamp != 0) { 443 // Have buffer, no matching frame. Look for one 444 for (size_t j = 0; j < mFrameList.size(); j++) { 445 bool match = false; 446 CameraMetadata &frame = mFrameList.editItemAt(j); 447 if (!frame.isEmpty()) { 448 camera_metadata_entry_t entry; 449 entry = frame.find(ANDROID_SENSOR_TIMESTAMP); 450 if (entry.count == 0) { 451 ALOGE("%s: Can't find timestamp in frame!", 452 __FUNCTION__); 453 continue; 454 } 455 nsecs_t frameTimestamp = entry.data.i64[0]; 456 if (bufferTimestamp == frameTimestamp) { 457 ALOGVV("%s: Found match %lld", __FUNCTION__, 458 frameTimestamp); 459 match = true; 460 } else { 461 int64_t delta = abs(bufferTimestamp - frameTimestamp); 462 if ( delta < 1000000) { 463 ALOGVV("%s: Found close match %lld (delta %lld)", 464 __FUNCTION__, bufferTimestamp, delta); 465 match = true; 466 } 467 } 468 } 469 if (match) { 470 queueEntry.frame.acquire(frame); 471 break; 472 } 473 } 474 } 475 } 476} 477 478void ZslProcessor::dumpZslQueue(int fd) const { 479 String8 header("ZSL queue contents:"); 480 String8 indent(" "); 481 ALOGV("%s", header.string()); 482 if (fd != -1) { 483 header = indent + header + "\n"; 484 write(fd, header.string(), header.size()); 485 } 486 for (size_t i = 0; i < mZslQueue.size(); i++) { 487 const ZslPair &queueEntry = mZslQueue[i]; 488 nsecs_t bufferTimestamp = queueEntry.buffer.mTimestamp; 489 camera_metadata_ro_entry_t entry; 490 nsecs_t frameTimestamp = 0; 491 int frameAeState = -1; 492 if (!queueEntry.frame.isEmpty()) { 493 entry = queueEntry.frame.find(ANDROID_SENSOR_TIMESTAMP); 494 if (entry.count > 0) frameTimestamp = entry.data.i64[0]; 495 entry = queueEntry.frame.find(ANDROID_CONTROL_AE_STATE); 496 if (entry.count > 0) frameAeState = entry.data.u8[0]; 497 } 498 String8 result = 499 String8::format(" %d: b: %lld\tf: %lld, AE state: %d", i, 500 bufferTimestamp, frameTimestamp, frameAeState); 501 ALOGV("%s", result.string()); 502 if (fd != -1) { 503 result = indent + result + "\n"; 504 write(fd, result.string(), result.size()); 505 } 506 507 } 508} 509 510}; // namespace camera2 511}; // namespace android 512