1 /* 2 * Copyright (C) 2009 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_NDEBUG 0 18 #define LOG_TAG "StagefrightRecorder" 19 #include <inttypes.h> 20 #include <utils/Log.h> 21 22 #include "WebmWriter.h" 23 #include "StagefrightRecorder.h" 24 25 #include <binder/IPCThreadState.h> 26 #include <binder/IServiceManager.h> 27 28 #include <media/IMediaPlayerService.h> 29 #include <media/stagefright/foundation/ABuffer.h> 30 #include <media/stagefright/foundation/ADebug.h> 31 #include <media/stagefright/foundation/AMessage.h> 32 #include <media/stagefright/foundation/ALooper.h> 33 #include <media/stagefright/ACodec.h> 34 #include <media/stagefright/AudioSource.h> 35 #include <media/stagefright/AMRWriter.h> 36 #include <media/stagefright/AACWriter.h> 37 #include <media/stagefright/CameraSource.h> 38 #include <media/stagefright/CameraSourceTimeLapse.h> 39 #include <media/stagefright/MPEG2TSWriter.h> 40 #include <media/stagefright/MPEG4Writer.h> 41 #include <media/stagefright/MediaDefs.h> 42 #include <media/stagefright/MetaData.h> 43 #include <media/stagefright/MediaCodecSource.h> 44 #include <media/stagefright/OMXClient.h> 45 #include <media/stagefright/OMXCodec.h> 46 #include <media/MediaProfiles.h> 47 #include <camera/ICamera.h> 48 #include <camera/CameraParameters.h> 49 50 #include <utils/Errors.h> 51 #include <sys/types.h> 52 #include <ctype.h> 53 #include <unistd.h> 54 55 #include <system/audio.h> 56 57 #include "ARTPWriter.h" 58 59 namespace android { 60 61 // To collect the encoder usage for the battery app 62 static void addBatteryData(uint32_t params) { 63 sp<IBinder> binder = 64 defaultServiceManager()->getService(String16("media.player")); 65 sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder); 66 CHECK(service.get() != NULL); 67 68 service->addBatteryData(params); 69 } 70 71 72 StagefrightRecorder::StagefrightRecorder() 73 : mWriter(NULL), 74 mOutputFd(-1), 75 mAudioSource(AUDIO_SOURCE_CNT), 76 mVideoSource(VIDEO_SOURCE_LIST_END), 77 mCaptureTimeLapse(false), 78 mStarted(false) { 79 80 ALOGV("Constructor"); 81 reset(); 82 } 83 84 StagefrightRecorder::~StagefrightRecorder() { 85 ALOGV("Destructor"); 86 stop(); 87 88 if (mLooper != NULL) { 89 mLooper->stop(); 90 } 91 } 92 93 status_t StagefrightRecorder::init() { 94 ALOGV("init"); 95 96 mLooper = new ALooper; 97 mLooper->setName("recorder_looper"); 98 mLooper->start(); 99 100 return OK; 101 } 102 103 // The client side of mediaserver asks it to creat a SurfaceMediaSource 104 // and return a interface reference. The client side will use that 105 // while encoding GL Frames 106 sp<IGraphicBufferProducer> StagefrightRecorder::querySurfaceMediaSource() const { 107 ALOGV("Get SurfaceMediaSource"); 108 return mGraphicBufferProducer; 109 } 110 111 status_t StagefrightRecorder::setAudioSource(audio_source_t as) { 112 ALOGV("setAudioSource: %d", as); 113 if (as < AUDIO_SOURCE_DEFAULT || 114 (as >= AUDIO_SOURCE_CNT && as != AUDIO_SOURCE_FM_TUNER)) { 115 ALOGE("Invalid audio source: %d", as); 116 return BAD_VALUE; 117 } 118 119 if (as == AUDIO_SOURCE_DEFAULT) { 120 mAudioSource = AUDIO_SOURCE_MIC; 121 } else { 122 mAudioSource = as; 123 } 124 125 return OK; 126 } 127 128 status_t StagefrightRecorder::setVideoSource(video_source vs) { 129 ALOGV("setVideoSource: %d", vs); 130 if (vs < VIDEO_SOURCE_DEFAULT || 131 vs >= VIDEO_SOURCE_LIST_END) { 132 ALOGE("Invalid video source: %d", vs); 133 return BAD_VALUE; 134 } 135 136 if (vs == VIDEO_SOURCE_DEFAULT) { 137 mVideoSource = VIDEO_SOURCE_CAMERA; 138 } else { 139 mVideoSource = vs; 140 } 141 142 return OK; 143 } 144 145 status_t StagefrightRecorder::setOutputFormat(output_format of) { 146 ALOGV("setOutputFormat: %d", of); 147 if (of < OUTPUT_FORMAT_DEFAULT || 148 of >= OUTPUT_FORMAT_LIST_END) { 149 ALOGE("Invalid output format: %d", of); 150 return BAD_VALUE; 151 } 152 153 if (of == OUTPUT_FORMAT_DEFAULT) { 154 mOutputFormat = OUTPUT_FORMAT_THREE_GPP; 155 } else { 156 mOutputFormat = of; 157 } 158 159 return OK; 160 } 161 162 status_t StagefrightRecorder::setAudioEncoder(audio_encoder ae) { 163 ALOGV("setAudioEncoder: %d", ae); 164 if (ae < AUDIO_ENCODER_DEFAULT || 165 ae >= AUDIO_ENCODER_LIST_END) { 166 ALOGE("Invalid audio encoder: %d", ae); 167 return BAD_VALUE; 168 } 169 170 if (ae == AUDIO_ENCODER_DEFAULT) { 171 mAudioEncoder = AUDIO_ENCODER_AMR_NB; 172 } else { 173 mAudioEncoder = ae; 174 } 175 176 return OK; 177 } 178 179 status_t StagefrightRecorder::setVideoEncoder(video_encoder ve) { 180 ALOGV("setVideoEncoder: %d", ve); 181 if (ve < VIDEO_ENCODER_DEFAULT || 182 ve >= VIDEO_ENCODER_LIST_END) { 183 ALOGE("Invalid video encoder: %d", ve); 184 return BAD_VALUE; 185 } 186 187 mVideoEncoder = ve; 188 189 return OK; 190 } 191 192 status_t StagefrightRecorder::setVideoSize(int width, int height) { 193 ALOGV("setVideoSize: %dx%d", width, height); 194 if (width <= 0 || height <= 0) { 195 ALOGE("Invalid video size: %dx%d", width, height); 196 return BAD_VALUE; 197 } 198 199 // Additional check on the dimension will be performed later 200 mVideoWidth = width; 201 mVideoHeight = height; 202 203 return OK; 204 } 205 206 status_t StagefrightRecorder::setVideoFrameRate(int frames_per_second) { 207 ALOGV("setVideoFrameRate: %d", frames_per_second); 208 if ((frames_per_second <= 0 && frames_per_second != -1) || 209 frames_per_second > 120) { 210 ALOGE("Invalid video frame rate: %d", frames_per_second); 211 return BAD_VALUE; 212 } 213 214 // Additional check on the frame rate will be performed later 215 mFrameRate = frames_per_second; 216 217 return OK; 218 } 219 220 status_t StagefrightRecorder::setCamera(const sp<ICamera> &camera, 221 const sp<ICameraRecordingProxy> &proxy) { 222 ALOGV("setCamera"); 223 if (camera == 0) { 224 ALOGE("camera is NULL"); 225 return BAD_VALUE; 226 } 227 if (proxy == 0) { 228 ALOGE("camera proxy is NULL"); 229 return BAD_VALUE; 230 } 231 232 mCamera = camera; 233 mCameraProxy = proxy; 234 return OK; 235 } 236 237 status_t StagefrightRecorder::setPreviewSurface(const sp<IGraphicBufferProducer> &surface) { 238 ALOGV("setPreviewSurface: %p", surface.get()); 239 mPreviewSurface = surface; 240 241 return OK; 242 } 243 244 status_t StagefrightRecorder::setOutputFile(const char * /* path */) { 245 ALOGE("setOutputFile(const char*) must not be called"); 246 // We don't actually support this at all, as the media_server process 247 // no longer has permissions to create files. 248 249 return -EPERM; 250 } 251 252 status_t StagefrightRecorder::setOutputFile(int fd, int64_t offset, int64_t length) { 253 ALOGV("setOutputFile: %d, %lld, %lld", fd, offset, length); 254 // These don't make any sense, do they? 255 CHECK_EQ(offset, 0ll); 256 CHECK_EQ(length, 0ll); 257 258 if (fd < 0) { 259 ALOGE("Invalid file descriptor: %d", fd); 260 return -EBADF; 261 } 262 263 if (mOutputFd >= 0) { 264 ::close(mOutputFd); 265 } 266 mOutputFd = dup(fd); 267 268 return OK; 269 } 270 271 // Attempt to parse an int64 literal optionally surrounded by whitespace, 272 // returns true on success, false otherwise. 273 static bool safe_strtoi64(const char *s, int64_t *val) { 274 char *end; 275 276 // It is lame, but according to man page, we have to set errno to 0 277 // before calling strtoll(). 278 errno = 0; 279 *val = strtoll(s, &end, 10); 280 281 if (end == s || errno == ERANGE) { 282 return false; 283 } 284 285 // Skip trailing whitespace 286 while (isspace(*end)) { 287 ++end; 288 } 289 290 // For a successful return, the string must contain nothing but a valid 291 // int64 literal optionally surrounded by whitespace. 292 293 return *end == '\0'; 294 } 295 296 // Return true if the value is in [0, 0x007FFFFFFF] 297 static bool safe_strtoi32(const char *s, int32_t *val) { 298 int64_t temp; 299 if (safe_strtoi64(s, &temp)) { 300 if (temp >= 0 && temp <= 0x007FFFFFFF) { 301 *val = static_cast<int32_t>(temp); 302 return true; 303 } 304 } 305 return false; 306 } 307 308 // Trim both leading and trailing whitespace from the given string. 309 static void TrimString(String8 *s) { 310 size_t num_bytes = s->bytes(); 311 const char *data = s->string(); 312 313 size_t leading_space = 0; 314 while (leading_space < num_bytes && isspace(data[leading_space])) { 315 ++leading_space; 316 } 317 318 size_t i = num_bytes; 319 while (i > leading_space && isspace(data[i - 1])) { 320 --i; 321 } 322 323 s->setTo(String8(&data[leading_space], i - leading_space)); 324 } 325 326 status_t StagefrightRecorder::setParamAudioSamplingRate(int32_t sampleRate) { 327 ALOGV("setParamAudioSamplingRate: %d", sampleRate); 328 if (sampleRate <= 0) { 329 ALOGE("Invalid audio sampling rate: %d", sampleRate); 330 return BAD_VALUE; 331 } 332 333 // Additional check on the sample rate will be performed later. 334 mSampleRate = sampleRate; 335 return OK; 336 } 337 338 status_t StagefrightRecorder::setParamAudioNumberOfChannels(int32_t channels) { 339 ALOGV("setParamAudioNumberOfChannels: %d", channels); 340 if (channels <= 0 || channels >= 3) { 341 ALOGE("Invalid number of audio channels: %d", channels); 342 return BAD_VALUE; 343 } 344 345 // Additional check on the number of channels will be performed later. 346 mAudioChannels = channels; 347 return OK; 348 } 349 350 status_t StagefrightRecorder::setParamAudioEncodingBitRate(int32_t bitRate) { 351 ALOGV("setParamAudioEncodingBitRate: %d", bitRate); 352 if (bitRate <= 0) { 353 ALOGE("Invalid audio encoding bit rate: %d", bitRate); 354 return BAD_VALUE; 355 } 356 357 // The target bit rate may not be exactly the same as the requested. 358 // It depends on many factors, such as rate control, and the bit rate 359 // range that a specific encoder supports. The mismatch between the 360 // the target and requested bit rate will NOT be treated as an error. 361 mAudioBitRate = bitRate; 362 return OK; 363 } 364 365 status_t StagefrightRecorder::setParamVideoEncodingBitRate(int32_t bitRate) { 366 ALOGV("setParamVideoEncodingBitRate: %d", bitRate); 367 if (bitRate <= 0) { 368 ALOGE("Invalid video encoding bit rate: %d", bitRate); 369 return BAD_VALUE; 370 } 371 372 // The target bit rate may not be exactly the same as the requested. 373 // It depends on many factors, such as rate control, and the bit rate 374 // range that a specific encoder supports. The mismatch between the 375 // the target and requested bit rate will NOT be treated as an error. 376 mVideoBitRate = bitRate; 377 return OK; 378 } 379 380 // Always rotate clockwise, and only support 0, 90, 180 and 270 for now. 381 status_t StagefrightRecorder::setParamVideoRotation(int32_t degrees) { 382 ALOGV("setParamVideoRotation: %d", degrees); 383 if (degrees < 0 || degrees % 90 != 0) { 384 ALOGE("Unsupported video rotation angle: %d", degrees); 385 return BAD_VALUE; 386 } 387 mRotationDegrees = degrees % 360; 388 return OK; 389 } 390 391 status_t StagefrightRecorder::setParamMaxFileDurationUs(int64_t timeUs) { 392 ALOGV("setParamMaxFileDurationUs: %lld us", timeUs); 393 394 // This is meant for backward compatibility for MediaRecorder.java 395 if (timeUs <= 0) { 396 ALOGW("Max file duration is not positive: %lld us. Disabling duration limit.", timeUs); 397 timeUs = 0; // Disable the duration limit for zero or negative values. 398 } else if (timeUs <= 100000LL) { // XXX: 100 milli-seconds 399 ALOGE("Max file duration is too short: %lld us", timeUs); 400 return BAD_VALUE; 401 } 402 403 if (timeUs <= 15 * 1000000LL) { 404 ALOGW("Target duration (%lld us) too short to be respected", timeUs); 405 } 406 mMaxFileDurationUs = timeUs; 407 return OK; 408 } 409 410 status_t StagefrightRecorder::setParamMaxFileSizeBytes(int64_t bytes) { 411 ALOGV("setParamMaxFileSizeBytes: %lld bytes", bytes); 412 413 // This is meant for backward compatibility for MediaRecorder.java 414 if (bytes <= 0) { 415 ALOGW("Max file size is not positive: %lld bytes. " 416 "Disabling file size limit.", bytes); 417 bytes = 0; // Disable the file size limit for zero or negative values. 418 } else if (bytes <= 1024) { // XXX: 1 kB 419 ALOGE("Max file size is too small: %lld bytes", bytes); 420 return BAD_VALUE; 421 } 422 423 if (bytes <= 100 * 1024) { 424 ALOGW("Target file size (%lld bytes) is too small to be respected", bytes); 425 } 426 427 mMaxFileSizeBytes = bytes; 428 return OK; 429 } 430 431 status_t StagefrightRecorder::setParamInterleaveDuration(int32_t durationUs) { 432 ALOGV("setParamInterleaveDuration: %d", durationUs); 433 if (durationUs <= 500000) { // 500 ms 434 // If interleave duration is too small, it is very inefficient to do 435 // interleaving since the metadata overhead will count for a significant 436 // portion of the saved contents 437 ALOGE("Audio/video interleave duration is too small: %d us", durationUs); 438 return BAD_VALUE; 439 } else if (durationUs >= 10000000) { // 10 seconds 440 // If interleaving duration is too large, it can cause the recording 441 // session to use too much memory since we have to save the output 442 // data before we write them out 443 ALOGE("Audio/video interleave duration is too large: %d us", durationUs); 444 return BAD_VALUE; 445 } 446 mInterleaveDurationUs = durationUs; 447 return OK; 448 } 449 450 // If seconds < 0, only the first frame is I frame, and rest are all P frames 451 // If seconds == 0, all frames are encoded as I frames. No P frames 452 // If seconds > 0, it is the time spacing (seconds) between 2 neighboring I frames 453 status_t StagefrightRecorder::setParamVideoIFramesInterval(int32_t seconds) { 454 ALOGV("setParamVideoIFramesInterval: %d seconds", seconds); 455 mIFramesIntervalSec = seconds; 456 return OK; 457 } 458 459 status_t StagefrightRecorder::setParam64BitFileOffset(bool use64Bit) { 460 ALOGV("setParam64BitFileOffset: %s", 461 use64Bit? "use 64 bit file offset": "use 32 bit file offset"); 462 mUse64BitFileOffset = use64Bit; 463 return OK; 464 } 465 466 status_t StagefrightRecorder::setParamVideoCameraId(int32_t cameraId) { 467 ALOGV("setParamVideoCameraId: %d", cameraId); 468 if (cameraId < 0) { 469 return BAD_VALUE; 470 } 471 mCameraId = cameraId; 472 return OK; 473 } 474 475 status_t StagefrightRecorder::setParamTrackTimeStatus(int64_t timeDurationUs) { 476 ALOGV("setParamTrackTimeStatus: %lld", timeDurationUs); 477 if (timeDurationUs < 20000) { // Infeasible if shorter than 20 ms? 478 ALOGE("Tracking time duration too short: %lld us", timeDurationUs); 479 return BAD_VALUE; 480 } 481 mTrackEveryTimeDurationUs = timeDurationUs; 482 return OK; 483 } 484 485 status_t StagefrightRecorder::setParamVideoEncoderProfile(int32_t profile) { 486 ALOGV("setParamVideoEncoderProfile: %d", profile); 487 488 // Additional check will be done later when we load the encoder. 489 // For now, we are accepting values defined in OpenMAX IL. 490 mVideoEncoderProfile = profile; 491 return OK; 492 } 493 494 status_t StagefrightRecorder::setParamVideoEncoderLevel(int32_t level) { 495 ALOGV("setParamVideoEncoderLevel: %d", level); 496 497 // Additional check will be done later when we load the encoder. 498 // For now, we are accepting values defined in OpenMAX IL. 499 mVideoEncoderLevel = level; 500 return OK; 501 } 502 503 status_t StagefrightRecorder::setParamMovieTimeScale(int32_t timeScale) { 504 ALOGV("setParamMovieTimeScale: %d", timeScale); 505 506 // The range is set to be the same as the audio's time scale range 507 // since audio's time scale has a wider range. 508 if (timeScale < 600 || timeScale > 96000) { 509 ALOGE("Time scale (%d) for movie is out of range [600, 96000]", timeScale); 510 return BAD_VALUE; 511 } 512 mMovieTimeScale = timeScale; 513 return OK; 514 } 515 516 status_t StagefrightRecorder::setParamVideoTimeScale(int32_t timeScale) { 517 ALOGV("setParamVideoTimeScale: %d", timeScale); 518 519 // 60000 is chosen to make sure that each video frame from a 60-fps 520 // video has 1000 ticks. 521 if (timeScale < 600 || timeScale > 60000) { 522 ALOGE("Time scale (%d) for video is out of range [600, 60000]", timeScale); 523 return BAD_VALUE; 524 } 525 mVideoTimeScale = timeScale; 526 return OK; 527 } 528 529 status_t StagefrightRecorder::setParamAudioTimeScale(int32_t timeScale) { 530 ALOGV("setParamAudioTimeScale: %d", timeScale); 531 532 // 96000 Hz is the highest sampling rate support in AAC. 533 if (timeScale < 600 || timeScale > 96000) { 534 ALOGE("Time scale (%d) for audio is out of range [600, 96000]", timeScale); 535 return BAD_VALUE; 536 } 537 mAudioTimeScale = timeScale; 538 return OK; 539 } 540 541 status_t StagefrightRecorder::setParamTimeLapseEnable(int32_t timeLapseEnable) { 542 ALOGV("setParamTimeLapseEnable: %d", timeLapseEnable); 543 544 if(timeLapseEnable == 0) { 545 mCaptureTimeLapse = false; 546 } else if (timeLapseEnable == 1) { 547 mCaptureTimeLapse = true; 548 } else { 549 return BAD_VALUE; 550 } 551 return OK; 552 } 553 554 status_t StagefrightRecorder::setParamTimeBetweenTimeLapseFrameCapture(int64_t timeUs) { 555 ALOGV("setParamTimeBetweenTimeLapseFrameCapture: %lld us", timeUs); 556 557 // Not allowing time more than a day 558 if (timeUs <= 0 || timeUs > 86400*1E6) { 559 ALOGE("Time between time lapse frame capture (%lld) is out of range [0, 1 Day]", timeUs); 560 return BAD_VALUE; 561 } 562 563 mTimeBetweenTimeLapseFrameCaptureUs = timeUs; 564 return OK; 565 } 566 567 status_t StagefrightRecorder::setParamGeoDataLongitude( 568 int64_t longitudex10000) { 569 570 if (longitudex10000 > 1800000 || longitudex10000 < -1800000) { 571 return BAD_VALUE; 572 } 573 mLongitudex10000 = longitudex10000; 574 return OK; 575 } 576 577 status_t StagefrightRecorder::setParamGeoDataLatitude( 578 int64_t latitudex10000) { 579 580 if (latitudex10000 > 900000 || latitudex10000 < -900000) { 581 return BAD_VALUE; 582 } 583 mLatitudex10000 = latitudex10000; 584 return OK; 585 } 586 587 status_t StagefrightRecorder::setParameter( 588 const String8 &key, const String8 &value) { 589 ALOGV("setParameter: key (%s) => value (%s)", key.string(), value.string()); 590 if (key == "max-duration") { 591 int64_t max_duration_ms; 592 if (safe_strtoi64(value.string(), &max_duration_ms)) { 593 return setParamMaxFileDurationUs(1000LL * max_duration_ms); 594 } 595 } else if (key == "max-filesize") { 596 int64_t max_filesize_bytes; 597 if (safe_strtoi64(value.string(), &max_filesize_bytes)) { 598 return setParamMaxFileSizeBytes(max_filesize_bytes); 599 } 600 } else if (key == "interleave-duration-us") { 601 int32_t durationUs; 602 if (safe_strtoi32(value.string(), &durationUs)) { 603 return setParamInterleaveDuration(durationUs); 604 } 605 } else if (key == "param-movie-time-scale") { 606 int32_t timeScale; 607 if (safe_strtoi32(value.string(), &timeScale)) { 608 return setParamMovieTimeScale(timeScale); 609 } 610 } else if (key == "param-use-64bit-offset") { 611 int32_t use64BitOffset; 612 if (safe_strtoi32(value.string(), &use64BitOffset)) { 613 return setParam64BitFileOffset(use64BitOffset != 0); 614 } 615 } else if (key == "param-geotag-longitude") { 616 int64_t longitudex10000; 617 if (safe_strtoi64(value.string(), &longitudex10000)) { 618 return setParamGeoDataLongitude(longitudex10000); 619 } 620 } else if (key == "param-geotag-latitude") { 621 int64_t latitudex10000; 622 if (safe_strtoi64(value.string(), &latitudex10000)) { 623 return setParamGeoDataLatitude(latitudex10000); 624 } 625 } else if (key == "param-track-time-status") { 626 int64_t timeDurationUs; 627 if (safe_strtoi64(value.string(), &timeDurationUs)) { 628 return setParamTrackTimeStatus(timeDurationUs); 629 } 630 } else if (key == "audio-param-sampling-rate") { 631 int32_t sampling_rate; 632 if (safe_strtoi32(value.string(), &sampling_rate)) { 633 return setParamAudioSamplingRate(sampling_rate); 634 } 635 } else if (key == "audio-param-number-of-channels") { 636 int32_t number_of_channels; 637 if (safe_strtoi32(value.string(), &number_of_channels)) { 638 return setParamAudioNumberOfChannels(number_of_channels); 639 } 640 } else if (key == "audio-param-encoding-bitrate") { 641 int32_t audio_bitrate; 642 if (safe_strtoi32(value.string(), &audio_bitrate)) { 643 return setParamAudioEncodingBitRate(audio_bitrate); 644 } 645 } else if (key == "audio-param-time-scale") { 646 int32_t timeScale; 647 if (safe_strtoi32(value.string(), &timeScale)) { 648 return setParamAudioTimeScale(timeScale); 649 } 650 } else if (key == "video-param-encoding-bitrate") { 651 int32_t video_bitrate; 652 if (safe_strtoi32(value.string(), &video_bitrate)) { 653 return setParamVideoEncodingBitRate(video_bitrate); 654 } 655 } else if (key == "video-param-rotation-angle-degrees") { 656 int32_t degrees; 657 if (safe_strtoi32(value.string(), °rees)) { 658 return setParamVideoRotation(degrees); 659 } 660 } else if (key == "video-param-i-frames-interval") { 661 int32_t seconds; 662 if (safe_strtoi32(value.string(), &seconds)) { 663 return setParamVideoIFramesInterval(seconds); 664 } 665 } else if (key == "video-param-encoder-profile") { 666 int32_t profile; 667 if (safe_strtoi32(value.string(), &profile)) { 668 return setParamVideoEncoderProfile(profile); 669 } 670 } else if (key == "video-param-encoder-level") { 671 int32_t level; 672 if (safe_strtoi32(value.string(), &level)) { 673 return setParamVideoEncoderLevel(level); 674 } 675 } else if (key == "video-param-camera-id") { 676 int32_t cameraId; 677 if (safe_strtoi32(value.string(), &cameraId)) { 678 return setParamVideoCameraId(cameraId); 679 } 680 } else if (key == "video-param-time-scale") { 681 int32_t timeScale; 682 if (safe_strtoi32(value.string(), &timeScale)) { 683 return setParamVideoTimeScale(timeScale); 684 } 685 } else if (key == "time-lapse-enable") { 686 int32_t timeLapseEnable; 687 if (safe_strtoi32(value.string(), &timeLapseEnable)) { 688 return setParamTimeLapseEnable(timeLapseEnable); 689 } 690 } else if (key == "time-between-time-lapse-frame-capture") { 691 int64_t timeBetweenTimeLapseFrameCaptureUs; 692 if (safe_strtoi64(value.string(), &timeBetweenTimeLapseFrameCaptureUs)) { 693 return setParamTimeBetweenTimeLapseFrameCapture( 694 timeBetweenTimeLapseFrameCaptureUs); 695 } 696 } else { 697 ALOGE("setParameter: failed to find key %s", key.string()); 698 } 699 return BAD_VALUE; 700 } 701 702 status_t StagefrightRecorder::setParameters(const String8 ¶ms) { 703 ALOGV("setParameters: %s", params.string()); 704 const char *cparams = params.string(); 705 const char *key_start = cparams; 706 for (;;) { 707 const char *equal_pos = strchr(key_start, '='); 708 if (equal_pos == NULL) { 709 ALOGE("Parameters %s miss a value", cparams); 710 return BAD_VALUE; 711 } 712 String8 key(key_start, equal_pos - key_start); 713 TrimString(&key); 714 if (key.length() == 0) { 715 ALOGE("Parameters %s contains an empty key", cparams); 716 return BAD_VALUE; 717 } 718 const char *value_start = equal_pos + 1; 719 const char *semicolon_pos = strchr(value_start, ';'); 720 String8 value; 721 if (semicolon_pos == NULL) { 722 value.setTo(value_start); 723 } else { 724 value.setTo(value_start, semicolon_pos - value_start); 725 } 726 if (setParameter(key, value) != OK) { 727 return BAD_VALUE; 728 } 729 if (semicolon_pos == NULL) { 730 break; // Reaches the end 731 } 732 key_start = semicolon_pos + 1; 733 } 734 return OK; 735 } 736 737 status_t StagefrightRecorder::setListener(const sp<IMediaRecorderClient> &listener) { 738 mListener = listener; 739 740 return OK; 741 } 742 743 status_t StagefrightRecorder::setClientName(const String16& clientName) { 744 mClientName = clientName; 745 746 return OK; 747 } 748 749 status_t StagefrightRecorder::prepareInternal() { 750 ALOGV("prepare"); 751 if (mOutputFd < 0) { 752 ALOGE("Output file descriptor is invalid"); 753 return INVALID_OPERATION; 754 } 755 756 // Get UID here for permission checking 757 mClientUid = IPCThreadState::self()->getCallingUid(); 758 759 status_t status = OK; 760 761 switch (mOutputFormat) { 762 case OUTPUT_FORMAT_DEFAULT: 763 case OUTPUT_FORMAT_THREE_GPP: 764 case OUTPUT_FORMAT_MPEG_4: 765 case OUTPUT_FORMAT_WEBM: 766 status = setupMPEG4orWEBMRecording(); 767 break; 768 769 case OUTPUT_FORMAT_AMR_NB: 770 case OUTPUT_FORMAT_AMR_WB: 771 status = setupAMRRecording(); 772 break; 773 774 case OUTPUT_FORMAT_AAC_ADIF: 775 case OUTPUT_FORMAT_AAC_ADTS: 776 status = setupAACRecording(); 777 break; 778 779 case OUTPUT_FORMAT_RTP_AVP: 780 status = setupRTPRecording(); 781 break; 782 783 case OUTPUT_FORMAT_MPEG2TS: 784 status = setupMPEG2TSRecording(); 785 break; 786 787 default: 788 ALOGE("Unsupported output file format: %d", mOutputFormat); 789 status = UNKNOWN_ERROR; 790 break; 791 } 792 793 return status; 794 } 795 796 status_t StagefrightRecorder::prepare() { 797 if (mVideoSource == VIDEO_SOURCE_SURFACE) { 798 return prepareInternal(); 799 } 800 return OK; 801 } 802 803 status_t StagefrightRecorder::start() { 804 ALOGV("start"); 805 if (mOutputFd < 0) { 806 ALOGE("Output file descriptor is invalid"); 807 return INVALID_OPERATION; 808 } 809 810 status_t status = OK; 811 812 if (mVideoSource != VIDEO_SOURCE_SURFACE) { 813 status = prepareInternal(); 814 if (status != OK) { 815 return status; 816 } 817 } 818 819 if (mWriter == NULL) { 820 ALOGE("File writer is not avaialble"); 821 return UNKNOWN_ERROR; 822 } 823 824 switch (mOutputFormat) { 825 case OUTPUT_FORMAT_DEFAULT: 826 case OUTPUT_FORMAT_THREE_GPP: 827 case OUTPUT_FORMAT_MPEG_4: 828 case OUTPUT_FORMAT_WEBM: 829 { 830 bool isMPEG4 = true; 831 if (mOutputFormat == OUTPUT_FORMAT_WEBM) { 832 isMPEG4 = false; 833 } 834 sp<MetaData> meta = new MetaData; 835 setupMPEG4orWEBMMetaData(&meta); 836 status = mWriter->start(meta.get()); 837 break; 838 } 839 840 case OUTPUT_FORMAT_AMR_NB: 841 case OUTPUT_FORMAT_AMR_WB: 842 case OUTPUT_FORMAT_AAC_ADIF: 843 case OUTPUT_FORMAT_AAC_ADTS: 844 case OUTPUT_FORMAT_RTP_AVP: 845 case OUTPUT_FORMAT_MPEG2TS: 846 { 847 status = mWriter->start(); 848 break; 849 } 850 851 default: 852 { 853 ALOGE("Unsupported output file format: %d", mOutputFormat); 854 status = UNKNOWN_ERROR; 855 break; 856 } 857 } 858 859 if (status != OK) { 860 mWriter.clear(); 861 mWriter = NULL; 862 } 863 864 if ((status == OK) && (!mStarted)) { 865 mStarted = true; 866 867 uint32_t params = IMediaPlayerService::kBatteryDataCodecStarted; 868 if (mAudioSource != AUDIO_SOURCE_CNT) { 869 params |= IMediaPlayerService::kBatteryDataTrackAudio; 870 } 871 if (mVideoSource != VIDEO_SOURCE_LIST_END) { 872 params |= IMediaPlayerService::kBatteryDataTrackVideo; 873 } 874 875 addBatteryData(params); 876 } 877 878 return status; 879 } 880 881 sp<MediaSource> StagefrightRecorder::createAudioSource() { 882 sp<AudioSource> audioSource = 883 new AudioSource( 884 mAudioSource, 885 mSampleRate, 886 mAudioChannels); 887 888 status_t err = audioSource->initCheck(); 889 890 if (err != OK) { 891 ALOGE("audio source is not initialized"); 892 return NULL; 893 } 894 895 sp<AMessage> format = new AMessage; 896 const char *mime; 897 switch (mAudioEncoder) { 898 case AUDIO_ENCODER_AMR_NB: 899 case AUDIO_ENCODER_DEFAULT: 900 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AMR_NB); 901 break; 902 case AUDIO_ENCODER_AMR_WB: 903 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AMR_WB); 904 break; 905 case AUDIO_ENCODER_AAC: 906 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC); 907 format->setInt32("aac-profile", OMX_AUDIO_AACObjectLC); 908 break; 909 case AUDIO_ENCODER_HE_AAC: 910 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC); 911 format->setInt32("aac-profile", OMX_AUDIO_AACObjectHE); 912 break; 913 case AUDIO_ENCODER_AAC_ELD: 914 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC); 915 format->setInt32("aac-profile", OMX_AUDIO_AACObjectELD); 916 break; 917 918 default: 919 ALOGE("Unknown audio encoder: %d", mAudioEncoder); 920 return NULL; 921 } 922 923 int32_t maxInputSize; 924 CHECK(audioSource->getFormat()->findInt32( 925 kKeyMaxInputSize, &maxInputSize)); 926 927 format->setInt32("max-input-size", maxInputSize); 928 format->setInt32("channel-count", mAudioChannels); 929 format->setInt32("sample-rate", mSampleRate); 930 format->setInt32("bitrate", mAudioBitRate); 931 if (mAudioTimeScale > 0) { 932 format->setInt32("time-scale", mAudioTimeScale); 933 } 934 935 sp<MediaSource> audioEncoder = 936 MediaCodecSource::Create(mLooper, format, audioSource); 937 mAudioSourceNode = audioSource; 938 939 if (audioEncoder == NULL) { 940 ALOGE("Failed to create audio encoder"); 941 } 942 943 return audioEncoder; 944 } 945 946 status_t StagefrightRecorder::setupAACRecording() { 947 // FIXME: 948 // Add support for OUTPUT_FORMAT_AAC_ADIF 949 CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_AAC_ADTS); 950 951 CHECK(mAudioEncoder == AUDIO_ENCODER_AAC || 952 mAudioEncoder == AUDIO_ENCODER_HE_AAC || 953 mAudioEncoder == AUDIO_ENCODER_AAC_ELD); 954 CHECK(mAudioSource != AUDIO_SOURCE_CNT); 955 956 mWriter = new AACWriter(mOutputFd); 957 return setupRawAudioRecording(); 958 } 959 960 status_t StagefrightRecorder::setupAMRRecording() { 961 CHECK(mOutputFormat == OUTPUT_FORMAT_AMR_NB || 962 mOutputFormat == OUTPUT_FORMAT_AMR_WB); 963 964 if (mOutputFormat == OUTPUT_FORMAT_AMR_NB) { 965 if (mAudioEncoder != AUDIO_ENCODER_DEFAULT && 966 mAudioEncoder != AUDIO_ENCODER_AMR_NB) { 967 ALOGE("Invalid encoder %d used for AMRNB recording", 968 mAudioEncoder); 969 return BAD_VALUE; 970 } 971 } else { // mOutputFormat must be OUTPUT_FORMAT_AMR_WB 972 if (mAudioEncoder != AUDIO_ENCODER_AMR_WB) { 973 ALOGE("Invlaid encoder %d used for AMRWB recording", 974 mAudioEncoder); 975 return BAD_VALUE; 976 } 977 } 978 979 mWriter = new AMRWriter(mOutputFd); 980 return setupRawAudioRecording(); 981 } 982 983 status_t StagefrightRecorder::setupRawAudioRecording() { 984 if (mAudioSource >= AUDIO_SOURCE_CNT && mAudioSource != AUDIO_SOURCE_FM_TUNER) { 985 ALOGE("Invalid audio source: %d", mAudioSource); 986 return BAD_VALUE; 987 } 988 989 status_t status = BAD_VALUE; 990 if (OK != (status = checkAudioEncoderCapabilities())) { 991 return status; 992 } 993 994 sp<MediaSource> audioEncoder = createAudioSource(); 995 if (audioEncoder == NULL) { 996 return UNKNOWN_ERROR; 997 } 998 999 CHECK(mWriter != 0); 1000 mWriter->addSource(audioEncoder); 1001 1002 if (mMaxFileDurationUs != 0) { 1003 mWriter->setMaxFileDuration(mMaxFileDurationUs); 1004 } 1005 if (mMaxFileSizeBytes != 0) { 1006 mWriter->setMaxFileSize(mMaxFileSizeBytes); 1007 } 1008 mWriter->setListener(mListener); 1009 1010 return OK; 1011 } 1012 1013 status_t StagefrightRecorder::setupRTPRecording() { 1014 CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_RTP_AVP); 1015 1016 if ((mAudioSource != AUDIO_SOURCE_CNT 1017 && mVideoSource != VIDEO_SOURCE_LIST_END) 1018 || (mAudioSource == AUDIO_SOURCE_CNT 1019 && mVideoSource == VIDEO_SOURCE_LIST_END)) { 1020 // Must have exactly one source. 1021 return BAD_VALUE; 1022 } 1023 1024 if (mOutputFd < 0) { 1025 return BAD_VALUE; 1026 } 1027 1028 sp<MediaSource> source; 1029 1030 if (mAudioSource != AUDIO_SOURCE_CNT) { 1031 source = createAudioSource(); 1032 } else { 1033 setDefaultVideoEncoderIfNecessary(); 1034 1035 sp<MediaSource> mediaSource; 1036 status_t err = setupMediaSource(&mediaSource); 1037 if (err != OK) { 1038 return err; 1039 } 1040 1041 err = setupVideoEncoder(mediaSource, &source); 1042 if (err != OK) { 1043 return err; 1044 } 1045 } 1046 1047 mWriter = new ARTPWriter(mOutputFd); 1048 mWriter->addSource(source); 1049 mWriter->setListener(mListener); 1050 1051 return OK; 1052 } 1053 1054 status_t StagefrightRecorder::setupMPEG2TSRecording() { 1055 CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_MPEG2TS); 1056 1057 sp<MediaWriter> writer = new MPEG2TSWriter(mOutputFd); 1058 1059 if (mAudioSource != AUDIO_SOURCE_CNT) { 1060 if (mAudioEncoder != AUDIO_ENCODER_AAC && 1061 mAudioEncoder != AUDIO_ENCODER_HE_AAC && 1062 mAudioEncoder != AUDIO_ENCODER_AAC_ELD) { 1063 return ERROR_UNSUPPORTED; 1064 } 1065 1066 status_t err = setupAudioEncoder(writer); 1067 1068 if (err != OK) { 1069 return err; 1070 } 1071 } 1072 1073 if (mVideoSource < VIDEO_SOURCE_LIST_END) { 1074 if (mVideoEncoder != VIDEO_ENCODER_H264) { 1075 ALOGE("MPEG2TS recording only supports H.264 encoding!"); 1076 return ERROR_UNSUPPORTED; 1077 } 1078 1079 sp<MediaSource> mediaSource; 1080 status_t err = setupMediaSource(&mediaSource); 1081 if (err != OK) { 1082 return err; 1083 } 1084 1085 sp<MediaSource> encoder; 1086 err = setupVideoEncoder(mediaSource, &encoder); 1087 1088 if (err != OK) { 1089 return err; 1090 } 1091 1092 writer->addSource(encoder); 1093 } 1094 1095 if (mMaxFileDurationUs != 0) { 1096 writer->setMaxFileDuration(mMaxFileDurationUs); 1097 } 1098 1099 if (mMaxFileSizeBytes != 0) { 1100 writer->setMaxFileSize(mMaxFileSizeBytes); 1101 } 1102 1103 mWriter = writer; 1104 1105 return OK; 1106 } 1107 1108 void StagefrightRecorder::clipVideoFrameRate() { 1109 ALOGV("clipVideoFrameRate: encoder %d", mVideoEncoder); 1110 if (mFrameRate == -1) { 1111 mFrameRate = mEncoderProfiles->getCamcorderProfileParamByName( 1112 "vid.fps", mCameraId, CAMCORDER_QUALITY_LOW); 1113 ALOGW("Using default video fps %d", mFrameRate); 1114 } 1115 1116 int minFrameRate = mEncoderProfiles->getVideoEncoderParamByName( 1117 "enc.vid.fps.min", mVideoEncoder); 1118 int maxFrameRate = mEncoderProfiles->getVideoEncoderParamByName( 1119 "enc.vid.fps.max", mVideoEncoder); 1120 if (mFrameRate < minFrameRate && minFrameRate != -1) { 1121 ALOGW("Intended video encoding frame rate (%d fps) is too small" 1122 " and will be set to (%d fps)", mFrameRate, minFrameRate); 1123 mFrameRate = minFrameRate; 1124 } else if (mFrameRate > maxFrameRate && maxFrameRate != -1) { 1125 ALOGW("Intended video encoding frame rate (%d fps) is too large" 1126 " and will be set to (%d fps)", mFrameRate, maxFrameRate); 1127 mFrameRate = maxFrameRate; 1128 } 1129 } 1130 1131 void StagefrightRecorder::clipVideoBitRate() { 1132 ALOGV("clipVideoBitRate: encoder %d", mVideoEncoder); 1133 int minBitRate = mEncoderProfiles->getVideoEncoderParamByName( 1134 "enc.vid.bps.min", mVideoEncoder); 1135 int maxBitRate = mEncoderProfiles->getVideoEncoderParamByName( 1136 "enc.vid.bps.max", mVideoEncoder); 1137 if (mVideoBitRate < minBitRate && minBitRate != -1) { 1138 ALOGW("Intended video encoding bit rate (%d bps) is too small" 1139 " and will be set to (%d bps)", mVideoBitRate, minBitRate); 1140 mVideoBitRate = minBitRate; 1141 } else if (mVideoBitRate > maxBitRate && maxBitRate != -1) { 1142 ALOGW("Intended video encoding bit rate (%d bps) is too large" 1143 " and will be set to (%d bps)", mVideoBitRate, maxBitRate); 1144 mVideoBitRate = maxBitRate; 1145 } 1146 } 1147 1148 void StagefrightRecorder::clipVideoFrameWidth() { 1149 ALOGV("clipVideoFrameWidth: encoder %d", mVideoEncoder); 1150 int minFrameWidth = mEncoderProfiles->getVideoEncoderParamByName( 1151 "enc.vid.width.min", mVideoEncoder); 1152 int maxFrameWidth = mEncoderProfiles->getVideoEncoderParamByName( 1153 "enc.vid.width.max", mVideoEncoder); 1154 if (mVideoWidth < minFrameWidth && minFrameWidth != -1) { 1155 ALOGW("Intended video encoding frame width (%d) is too small" 1156 " and will be set to (%d)", mVideoWidth, minFrameWidth); 1157 mVideoWidth = minFrameWidth; 1158 } else if (mVideoWidth > maxFrameWidth && maxFrameWidth != -1) { 1159 ALOGW("Intended video encoding frame width (%d) is too large" 1160 " and will be set to (%d)", mVideoWidth, maxFrameWidth); 1161 mVideoWidth = maxFrameWidth; 1162 } 1163 } 1164 1165 status_t StagefrightRecorder::checkVideoEncoderCapabilities( 1166 bool *supportsCameraSourceMetaDataMode) { 1167 /* hardware codecs must support camera source meta data mode */ 1168 Vector<CodecCapabilities> codecs; 1169 OMXClient client; 1170 CHECK_EQ(client.connect(), (status_t)OK); 1171 QueryCodecs( 1172 client.interface(), 1173 (mVideoEncoder == VIDEO_ENCODER_H263 ? MEDIA_MIMETYPE_VIDEO_H263 : 1174 mVideoEncoder == VIDEO_ENCODER_MPEG_4_SP ? MEDIA_MIMETYPE_VIDEO_MPEG4 : 1175 mVideoEncoder == VIDEO_ENCODER_VP8 ? MEDIA_MIMETYPE_VIDEO_VP8 : 1176 mVideoEncoder == VIDEO_ENCODER_H264 ? MEDIA_MIMETYPE_VIDEO_AVC : ""), 1177 false /* decoder */, true /* hwCodec */, &codecs); 1178 *supportsCameraSourceMetaDataMode = codecs.size() > 0; 1179 ALOGV("encoder %s camera source meta-data mode", 1180 *supportsCameraSourceMetaDataMode ? "supports" : "DOES NOT SUPPORT"); 1181 1182 if (!mCaptureTimeLapse) { 1183 // Dont clip for time lapse capture as encoder will have enough 1184 // time to encode because of slow capture rate of time lapse. 1185 clipVideoBitRate(); 1186 clipVideoFrameRate(); 1187 clipVideoFrameWidth(); 1188 clipVideoFrameHeight(); 1189 setDefaultProfileIfNecessary(); 1190 } 1191 return OK; 1192 } 1193 1194 // Set to use AVC baseline profile if the encoding parameters matches 1195 // CAMCORDER_QUALITY_LOW profile; this is for the sake of MMS service. 1196 void StagefrightRecorder::setDefaultProfileIfNecessary() { 1197 ALOGV("setDefaultProfileIfNecessary"); 1198 1199 camcorder_quality quality = CAMCORDER_QUALITY_LOW; 1200 1201 int64_t durationUs = mEncoderProfiles->getCamcorderProfileParamByName( 1202 "duration", mCameraId, quality) * 1000000LL; 1203 1204 int fileFormat = mEncoderProfiles->getCamcorderProfileParamByName( 1205 "file.format", mCameraId, quality); 1206 1207 int videoCodec = mEncoderProfiles->getCamcorderProfileParamByName( 1208 "vid.codec", mCameraId, quality); 1209 1210 int videoBitRate = mEncoderProfiles->getCamcorderProfileParamByName( 1211 "vid.bps", mCameraId, quality); 1212 1213 int videoFrameRate = mEncoderProfiles->getCamcorderProfileParamByName( 1214 "vid.fps", mCameraId, quality); 1215 1216 int videoFrameWidth = mEncoderProfiles->getCamcorderProfileParamByName( 1217 "vid.width", mCameraId, quality); 1218 1219 int videoFrameHeight = mEncoderProfiles->getCamcorderProfileParamByName( 1220 "vid.height", mCameraId, quality); 1221 1222 int audioCodec = mEncoderProfiles->getCamcorderProfileParamByName( 1223 "aud.codec", mCameraId, quality); 1224 1225 int audioBitRate = mEncoderProfiles->getCamcorderProfileParamByName( 1226 "aud.bps", mCameraId, quality); 1227 1228 int audioSampleRate = mEncoderProfiles->getCamcorderProfileParamByName( 1229 "aud.hz", mCameraId, quality); 1230 1231 int audioChannels = mEncoderProfiles->getCamcorderProfileParamByName( 1232 "aud.ch", mCameraId, quality); 1233 1234 if (durationUs == mMaxFileDurationUs && 1235 fileFormat == mOutputFormat && 1236 videoCodec == mVideoEncoder && 1237 videoBitRate == mVideoBitRate && 1238 videoFrameRate == mFrameRate && 1239 videoFrameWidth == mVideoWidth && 1240 videoFrameHeight == mVideoHeight && 1241 audioCodec == mAudioEncoder && 1242 audioBitRate == mAudioBitRate && 1243 audioSampleRate == mSampleRate && 1244 audioChannels == mAudioChannels) { 1245 if (videoCodec == VIDEO_ENCODER_H264) { 1246 ALOGI("Force to use AVC baseline profile"); 1247 setParamVideoEncoderProfile(OMX_VIDEO_AVCProfileBaseline); 1248 // set 0 for invalid levels - this will be rejected by the 1249 // codec if it cannot handle it during configure 1250 setParamVideoEncoderLevel(ACodec::getAVCLevelFor( 1251 videoFrameWidth, videoFrameHeight, videoFrameRate, videoBitRate)); 1252 } 1253 } 1254 } 1255 1256 void StagefrightRecorder::setDefaultVideoEncoderIfNecessary() { 1257 if (mVideoEncoder == VIDEO_ENCODER_DEFAULT) { 1258 if (mOutputFormat == OUTPUT_FORMAT_WEBM) { 1259 // default to VP8 for WEBM recording 1260 mVideoEncoder = VIDEO_ENCODER_VP8; 1261 } else { 1262 // pick the default encoder for CAMCORDER_QUALITY_LOW 1263 int videoCodec = mEncoderProfiles->getCamcorderProfileParamByName( 1264 "vid.codec", mCameraId, CAMCORDER_QUALITY_LOW); 1265 1266 if (videoCodec > VIDEO_ENCODER_DEFAULT && 1267 videoCodec < VIDEO_ENCODER_LIST_END) { 1268 mVideoEncoder = (video_encoder)videoCodec; 1269 } else { 1270 // default to H.264 if camcorder profile not available 1271 mVideoEncoder = VIDEO_ENCODER_H264; 1272 } 1273 } 1274 } 1275 } 1276 1277 status_t StagefrightRecorder::checkAudioEncoderCapabilities() { 1278 clipAudioBitRate(); 1279 clipAudioSampleRate(); 1280 clipNumberOfAudioChannels(); 1281 return OK; 1282 } 1283 1284 void StagefrightRecorder::clipAudioBitRate() { 1285 ALOGV("clipAudioBitRate: encoder %d", mAudioEncoder); 1286 1287 int minAudioBitRate = 1288 mEncoderProfiles->getAudioEncoderParamByName( 1289 "enc.aud.bps.min", mAudioEncoder); 1290 if (minAudioBitRate != -1 && mAudioBitRate < minAudioBitRate) { 1291 ALOGW("Intended audio encoding bit rate (%d) is too small" 1292 " and will be set to (%d)", mAudioBitRate, minAudioBitRate); 1293 mAudioBitRate = minAudioBitRate; 1294 } 1295 1296 int maxAudioBitRate = 1297 mEncoderProfiles->getAudioEncoderParamByName( 1298 "enc.aud.bps.max", mAudioEncoder); 1299 if (maxAudioBitRate != -1 && mAudioBitRate > maxAudioBitRate) { 1300 ALOGW("Intended audio encoding bit rate (%d) is too large" 1301 " and will be set to (%d)", mAudioBitRate, maxAudioBitRate); 1302 mAudioBitRate = maxAudioBitRate; 1303 } 1304 } 1305 1306 void StagefrightRecorder::clipAudioSampleRate() { 1307 ALOGV("clipAudioSampleRate: encoder %d", mAudioEncoder); 1308 1309 int minSampleRate = 1310 mEncoderProfiles->getAudioEncoderParamByName( 1311 "enc.aud.hz.min", mAudioEncoder); 1312 if (minSampleRate != -1 && mSampleRate < minSampleRate) { 1313 ALOGW("Intended audio sample rate (%d) is too small" 1314 " and will be set to (%d)", mSampleRate, minSampleRate); 1315 mSampleRate = minSampleRate; 1316 } 1317 1318 int maxSampleRate = 1319 mEncoderProfiles->getAudioEncoderParamByName( 1320 "enc.aud.hz.max", mAudioEncoder); 1321 if (maxSampleRate != -1 && mSampleRate > maxSampleRate) { 1322 ALOGW("Intended audio sample rate (%d) is too large" 1323 " and will be set to (%d)", mSampleRate, maxSampleRate); 1324 mSampleRate = maxSampleRate; 1325 } 1326 } 1327 1328 void StagefrightRecorder::clipNumberOfAudioChannels() { 1329 ALOGV("clipNumberOfAudioChannels: encoder %d", mAudioEncoder); 1330 1331 int minChannels = 1332 mEncoderProfiles->getAudioEncoderParamByName( 1333 "enc.aud.ch.min", mAudioEncoder); 1334 if (minChannels != -1 && mAudioChannels < minChannels) { 1335 ALOGW("Intended number of audio channels (%d) is too small" 1336 " and will be set to (%d)", mAudioChannels, minChannels); 1337 mAudioChannels = minChannels; 1338 } 1339 1340 int maxChannels = 1341 mEncoderProfiles->getAudioEncoderParamByName( 1342 "enc.aud.ch.max", mAudioEncoder); 1343 if (maxChannels != -1 && mAudioChannels > maxChannels) { 1344 ALOGW("Intended number of audio channels (%d) is too large" 1345 " and will be set to (%d)", mAudioChannels, maxChannels); 1346 mAudioChannels = maxChannels; 1347 } 1348 } 1349 1350 void StagefrightRecorder::clipVideoFrameHeight() { 1351 ALOGV("clipVideoFrameHeight: encoder %d", mVideoEncoder); 1352 int minFrameHeight = mEncoderProfiles->getVideoEncoderParamByName( 1353 "enc.vid.height.min", mVideoEncoder); 1354 int maxFrameHeight = mEncoderProfiles->getVideoEncoderParamByName( 1355 "enc.vid.height.max", mVideoEncoder); 1356 if (minFrameHeight != -1 && mVideoHeight < minFrameHeight) { 1357 ALOGW("Intended video encoding frame height (%d) is too small" 1358 " and will be set to (%d)", mVideoHeight, minFrameHeight); 1359 mVideoHeight = minFrameHeight; 1360 } else if (maxFrameHeight != -1 && mVideoHeight > maxFrameHeight) { 1361 ALOGW("Intended video encoding frame height (%d) is too large" 1362 " and will be set to (%d)", mVideoHeight, maxFrameHeight); 1363 mVideoHeight = maxFrameHeight; 1364 } 1365 } 1366 1367 // Set up the appropriate MediaSource depending on the chosen option 1368 status_t StagefrightRecorder::setupMediaSource( 1369 sp<MediaSource> *mediaSource) { 1370 if (mVideoSource == VIDEO_SOURCE_DEFAULT 1371 || mVideoSource == VIDEO_SOURCE_CAMERA) { 1372 sp<CameraSource> cameraSource; 1373 status_t err = setupCameraSource(&cameraSource); 1374 if (err != OK) { 1375 return err; 1376 } 1377 *mediaSource = cameraSource; 1378 } else if (mVideoSource == VIDEO_SOURCE_SURFACE) { 1379 *mediaSource = NULL; 1380 } else { 1381 return INVALID_OPERATION; 1382 } 1383 return OK; 1384 } 1385 1386 status_t StagefrightRecorder::setupCameraSource( 1387 sp<CameraSource> *cameraSource) { 1388 status_t err = OK; 1389 bool encoderSupportsCameraSourceMetaDataMode; 1390 if ((err = checkVideoEncoderCapabilities( 1391 &encoderSupportsCameraSourceMetaDataMode)) != OK) { 1392 return err; 1393 } 1394 Size videoSize; 1395 videoSize.width = mVideoWidth; 1396 videoSize.height = mVideoHeight; 1397 if (mCaptureTimeLapse) { 1398 if (mTimeBetweenTimeLapseFrameCaptureUs < 0) { 1399 ALOGE("Invalid mTimeBetweenTimeLapseFrameCaptureUs value: %lld", 1400 mTimeBetweenTimeLapseFrameCaptureUs); 1401 return BAD_VALUE; 1402 } 1403 1404 mCameraSourceTimeLapse = CameraSourceTimeLapse::CreateFromCamera( 1405 mCamera, mCameraProxy, mCameraId, mClientName, mClientUid, 1406 videoSize, mFrameRate, mPreviewSurface, 1407 mTimeBetweenTimeLapseFrameCaptureUs, 1408 encoderSupportsCameraSourceMetaDataMode); 1409 *cameraSource = mCameraSourceTimeLapse; 1410 } else { 1411 *cameraSource = CameraSource::CreateFromCamera( 1412 mCamera, mCameraProxy, mCameraId, mClientName, mClientUid, 1413 videoSize, mFrameRate, 1414 mPreviewSurface, encoderSupportsCameraSourceMetaDataMode); 1415 } 1416 mCamera.clear(); 1417 mCameraProxy.clear(); 1418 if (*cameraSource == NULL) { 1419 return UNKNOWN_ERROR; 1420 } 1421 1422 if ((*cameraSource)->initCheck() != OK) { 1423 (*cameraSource).clear(); 1424 *cameraSource = NULL; 1425 return NO_INIT; 1426 } 1427 1428 // When frame rate is not set, the actual frame rate will be set to 1429 // the current frame rate being used. 1430 if (mFrameRate == -1) { 1431 int32_t frameRate = 0; 1432 CHECK ((*cameraSource)->getFormat()->findInt32( 1433 kKeyFrameRate, &frameRate)); 1434 ALOGI("Frame rate is not explicitly set. Use the current frame " 1435 "rate (%d fps)", frameRate); 1436 mFrameRate = frameRate; 1437 } 1438 1439 CHECK(mFrameRate != -1); 1440 1441 mIsMetaDataStoredInVideoBuffers = 1442 (*cameraSource)->isMetaDataStoredInVideoBuffers(); 1443 1444 return OK; 1445 } 1446 1447 status_t StagefrightRecorder::setupVideoEncoder( 1448 sp<MediaSource> cameraSource, 1449 sp<MediaSource> *source) { 1450 source->clear(); 1451 1452 sp<AMessage> format = new AMessage(); 1453 1454 switch (mVideoEncoder) { 1455 case VIDEO_ENCODER_H263: 1456 format->setString("mime", MEDIA_MIMETYPE_VIDEO_H263); 1457 break; 1458 1459 case VIDEO_ENCODER_MPEG_4_SP: 1460 format->setString("mime", MEDIA_MIMETYPE_VIDEO_MPEG4); 1461 break; 1462 1463 case VIDEO_ENCODER_H264: 1464 format->setString("mime", MEDIA_MIMETYPE_VIDEO_AVC); 1465 break; 1466 1467 case VIDEO_ENCODER_VP8: 1468 format->setString("mime", MEDIA_MIMETYPE_VIDEO_VP8); 1469 break; 1470 1471 default: 1472 CHECK(!"Should not be here, unsupported video encoding."); 1473 break; 1474 } 1475 1476 if (cameraSource != NULL) { 1477 sp<MetaData> meta = cameraSource->getFormat(); 1478 1479 int32_t width, height, stride, sliceHeight, colorFormat; 1480 CHECK(meta->findInt32(kKeyWidth, &width)); 1481 CHECK(meta->findInt32(kKeyHeight, &height)); 1482 CHECK(meta->findInt32(kKeyStride, &stride)); 1483 CHECK(meta->findInt32(kKeySliceHeight, &sliceHeight)); 1484 CHECK(meta->findInt32(kKeyColorFormat, &colorFormat)); 1485 1486 format->setInt32("width", width); 1487 format->setInt32("height", height); 1488 format->setInt32("stride", stride); 1489 format->setInt32("slice-height", sliceHeight); 1490 format->setInt32("color-format", colorFormat); 1491 } else { 1492 format->setInt32("width", mVideoWidth); 1493 format->setInt32("height", mVideoHeight); 1494 format->setInt32("stride", mVideoWidth); 1495 format->setInt32("slice-height", mVideoWidth); 1496 format->setInt32("color-format", OMX_COLOR_FormatAndroidOpaque); 1497 1498 // set up time lapse/slow motion for surface source 1499 if (mCaptureTimeLapse) { 1500 if (mTimeBetweenTimeLapseFrameCaptureUs <= 0) { 1501 ALOGE("Invalid mTimeBetweenTimeLapseFrameCaptureUs value: %lld", 1502 mTimeBetweenTimeLapseFrameCaptureUs); 1503 return BAD_VALUE; 1504 } 1505 format->setInt64("time-lapse", 1506 mTimeBetweenTimeLapseFrameCaptureUs); 1507 } 1508 } 1509 1510 format->setInt32("bitrate", mVideoBitRate); 1511 format->setInt32("frame-rate", mFrameRate); 1512 format->setInt32("i-frame-interval", mIFramesIntervalSec); 1513 1514 if (mVideoTimeScale > 0) { 1515 format->setInt32("time-scale", mVideoTimeScale); 1516 } 1517 if (mVideoEncoderProfile != -1) { 1518 format->setInt32("profile", mVideoEncoderProfile); 1519 } 1520 if (mVideoEncoderLevel != -1) { 1521 format->setInt32("level", mVideoEncoderLevel); 1522 } 1523 1524 uint32_t flags = 0; 1525 if (mIsMetaDataStoredInVideoBuffers) { 1526 flags |= MediaCodecSource::FLAG_USE_METADATA_INPUT; 1527 } 1528 1529 if (cameraSource == NULL) { 1530 flags |= MediaCodecSource::FLAG_USE_SURFACE_INPUT; 1531 } 1532 1533 sp<MediaCodecSource> encoder = 1534 MediaCodecSource::Create(mLooper, format, cameraSource, flags); 1535 if (encoder == NULL) { 1536 ALOGE("Failed to create video encoder"); 1537 // When the encoder fails to be created, we need 1538 // release the camera source due to the camera's lock 1539 // and unlock mechanism. 1540 if (cameraSource != NULL) { 1541 cameraSource->stop(); 1542 } 1543 return UNKNOWN_ERROR; 1544 } 1545 1546 if (cameraSource == NULL) { 1547 mGraphicBufferProducer = encoder->getGraphicBufferProducer(); 1548 } 1549 1550 *source = encoder; 1551 1552 return OK; 1553 } 1554 1555 status_t StagefrightRecorder::setupAudioEncoder(const sp<MediaWriter>& writer) { 1556 status_t status = BAD_VALUE; 1557 if (OK != (status = checkAudioEncoderCapabilities())) { 1558 return status; 1559 } 1560 1561 switch(mAudioEncoder) { 1562 case AUDIO_ENCODER_AMR_NB: 1563 case AUDIO_ENCODER_AMR_WB: 1564 case AUDIO_ENCODER_AAC: 1565 case AUDIO_ENCODER_HE_AAC: 1566 case AUDIO_ENCODER_AAC_ELD: 1567 break; 1568 1569 default: 1570 ALOGE("Unsupported audio encoder: %d", mAudioEncoder); 1571 return UNKNOWN_ERROR; 1572 } 1573 1574 sp<MediaSource> audioEncoder = createAudioSource(); 1575 if (audioEncoder == NULL) { 1576 return UNKNOWN_ERROR; 1577 } 1578 1579 writer->addSource(audioEncoder); 1580 return OK; 1581 } 1582 1583 status_t StagefrightRecorder::setupMPEG4orWEBMRecording() { 1584 mWriter.clear(); 1585 mTotalBitRate = 0; 1586 1587 status_t err = OK; 1588 sp<MediaWriter> writer; 1589 if (mOutputFormat == OUTPUT_FORMAT_WEBM) { 1590 writer = new WebmWriter(mOutputFd); 1591 } else { 1592 writer = new MPEG4Writer(mOutputFd); 1593 } 1594 1595 if (mVideoSource < VIDEO_SOURCE_LIST_END) { 1596 setDefaultVideoEncoderIfNecessary(); 1597 1598 sp<MediaSource> mediaSource; 1599 err = setupMediaSource(&mediaSource); 1600 if (err != OK) { 1601 return err; 1602 } 1603 1604 sp<MediaSource> encoder; 1605 err = setupVideoEncoder(mediaSource, &encoder); 1606 if (err != OK) { 1607 return err; 1608 } 1609 1610 writer->addSource(encoder); 1611 mTotalBitRate += mVideoBitRate; 1612 } 1613 1614 if (mOutputFormat != OUTPUT_FORMAT_WEBM) { 1615 // Audio source is added at the end if it exists. 1616 // This help make sure that the "recoding" sound is suppressed for 1617 // camcorder applications in the recorded files. 1618 // TODO Audio source is currently unsupported for webm output; vorbis encoder needed. 1619 if (!mCaptureTimeLapse && (mAudioSource != AUDIO_SOURCE_CNT)) { 1620 err = setupAudioEncoder(writer); 1621 if (err != OK) return err; 1622 mTotalBitRate += mAudioBitRate; 1623 } 1624 1625 if (mInterleaveDurationUs > 0) { 1626 reinterpret_cast<MPEG4Writer *>(writer.get())-> 1627 setInterleaveDuration(mInterleaveDurationUs); 1628 } 1629 if (mLongitudex10000 > -3600000 && mLatitudex10000 > -3600000) { 1630 reinterpret_cast<MPEG4Writer *>(writer.get())-> 1631 setGeoData(mLatitudex10000, mLongitudex10000); 1632 } 1633 } 1634 if (mMaxFileDurationUs != 0) { 1635 writer->setMaxFileDuration(mMaxFileDurationUs); 1636 } 1637 if (mMaxFileSizeBytes != 0) { 1638 writer->setMaxFileSize(mMaxFileSizeBytes); 1639 } 1640 if (mVideoSource == VIDEO_SOURCE_DEFAULT 1641 || mVideoSource == VIDEO_SOURCE_CAMERA) { 1642 mStartTimeOffsetMs = mEncoderProfiles->getStartTimeOffsetMs(mCameraId); 1643 } else if (mVideoSource == VIDEO_SOURCE_SURFACE) { 1644 // surface source doesn't need large initial delay 1645 mStartTimeOffsetMs = 200; 1646 } 1647 if (mStartTimeOffsetMs > 0) { 1648 writer->setStartTimeOffsetMs(mStartTimeOffsetMs); 1649 } 1650 1651 writer->setListener(mListener); 1652 mWriter = writer; 1653 return OK; 1654 } 1655 1656 void StagefrightRecorder::setupMPEG4orWEBMMetaData(sp<MetaData> *meta) { 1657 int64_t startTimeUs = systemTime() / 1000; 1658 (*meta)->setInt64(kKeyTime, startTimeUs); 1659 (*meta)->setInt32(kKeyFileType, mOutputFormat); 1660 (*meta)->setInt32(kKeyBitRate, mTotalBitRate); 1661 if (mMovieTimeScale > 0) { 1662 (*meta)->setInt32(kKeyTimeScale, mMovieTimeScale); 1663 } 1664 if (mOutputFormat != OUTPUT_FORMAT_WEBM) { 1665 (*meta)->setInt32(kKey64BitFileOffset, mUse64BitFileOffset); 1666 if (mTrackEveryTimeDurationUs > 0) { 1667 (*meta)->setInt64(kKeyTrackTimeStatus, mTrackEveryTimeDurationUs); 1668 } 1669 if (mRotationDegrees != 0) { 1670 (*meta)->setInt32(kKeyRotation, mRotationDegrees); 1671 } 1672 } 1673 } 1674 1675 status_t StagefrightRecorder::pause() { 1676 ALOGV("pause"); 1677 if (mWriter == NULL) { 1678 return UNKNOWN_ERROR; 1679 } 1680 mWriter->pause(); 1681 1682 if (mStarted) { 1683 mStarted = false; 1684 1685 uint32_t params = 0; 1686 if (mAudioSource != AUDIO_SOURCE_CNT) { 1687 params |= IMediaPlayerService::kBatteryDataTrackAudio; 1688 } 1689 if (mVideoSource != VIDEO_SOURCE_LIST_END) { 1690 params |= IMediaPlayerService::kBatteryDataTrackVideo; 1691 } 1692 1693 addBatteryData(params); 1694 } 1695 1696 1697 return OK; 1698 } 1699 1700 status_t StagefrightRecorder::stop() { 1701 ALOGV("stop"); 1702 status_t err = OK; 1703 1704 if (mCaptureTimeLapse && mCameraSourceTimeLapse != NULL) { 1705 mCameraSourceTimeLapse->startQuickReadReturns(); 1706 mCameraSourceTimeLapse = NULL; 1707 } 1708 1709 if (mWriter != NULL) { 1710 err = mWriter->stop(); 1711 mWriter.clear(); 1712 } 1713 1714 mGraphicBufferProducer.clear(); 1715 1716 if (mOutputFd >= 0) { 1717 ::close(mOutputFd); 1718 mOutputFd = -1; 1719 } 1720 1721 if (mStarted) { 1722 mStarted = false; 1723 1724 uint32_t params = 0; 1725 if (mAudioSource != AUDIO_SOURCE_CNT) { 1726 params |= IMediaPlayerService::kBatteryDataTrackAudio; 1727 } 1728 if (mVideoSource != VIDEO_SOURCE_LIST_END) { 1729 params |= IMediaPlayerService::kBatteryDataTrackVideo; 1730 } 1731 1732 addBatteryData(params); 1733 } 1734 1735 return err; 1736 } 1737 1738 status_t StagefrightRecorder::close() { 1739 ALOGV("close"); 1740 stop(); 1741 1742 return OK; 1743 } 1744 1745 status_t StagefrightRecorder::reset() { 1746 ALOGV("reset"); 1747 stop(); 1748 1749 // No audio or video source by default 1750 mAudioSource = AUDIO_SOURCE_CNT; 1751 mVideoSource = VIDEO_SOURCE_LIST_END; 1752 1753 // Default parameters 1754 mOutputFormat = OUTPUT_FORMAT_THREE_GPP; 1755 mAudioEncoder = AUDIO_ENCODER_AMR_NB; 1756 mVideoEncoder = VIDEO_ENCODER_DEFAULT; 1757 mVideoWidth = 176; 1758 mVideoHeight = 144; 1759 mFrameRate = -1; 1760 mVideoBitRate = 192000; 1761 mSampleRate = 8000; 1762 mAudioChannels = 1; 1763 mAudioBitRate = 12200; 1764 mInterleaveDurationUs = 0; 1765 mIFramesIntervalSec = 1; 1766 mAudioSourceNode = 0; 1767 mUse64BitFileOffset = false; 1768 mMovieTimeScale = -1; 1769 mAudioTimeScale = -1; 1770 mVideoTimeScale = -1; 1771 mCameraId = 0; 1772 mStartTimeOffsetMs = -1; 1773 mVideoEncoderProfile = -1; 1774 mVideoEncoderLevel = -1; 1775 mMaxFileDurationUs = 0; 1776 mMaxFileSizeBytes = 0; 1777 mTrackEveryTimeDurationUs = 0; 1778 mCaptureTimeLapse = false; 1779 mTimeBetweenTimeLapseFrameCaptureUs = -1; 1780 mCameraSourceTimeLapse = NULL; 1781 mIsMetaDataStoredInVideoBuffers = false; 1782 mEncoderProfiles = MediaProfiles::getInstance(); 1783 mRotationDegrees = 0; 1784 mLatitudex10000 = -3600000; 1785 mLongitudex10000 = -3600000; 1786 mTotalBitRate = 0; 1787 1788 mOutputFd = -1; 1789 1790 return OK; 1791 } 1792 1793 status_t StagefrightRecorder::getMaxAmplitude(int *max) { 1794 ALOGV("getMaxAmplitude"); 1795 1796 if (max == NULL) { 1797 ALOGE("Null pointer argument"); 1798 return BAD_VALUE; 1799 } 1800 1801 if (mAudioSourceNode != 0) { 1802 *max = mAudioSourceNode->getMaxAmplitude(); 1803 } else { 1804 *max = 0; 1805 } 1806 1807 return OK; 1808 } 1809 1810 status_t StagefrightRecorder::dump( 1811 int fd, const Vector<String16>& args) const { 1812 ALOGV("dump"); 1813 const size_t SIZE = 256; 1814 char buffer[SIZE]; 1815 String8 result; 1816 if (mWriter != 0) { 1817 mWriter->dump(fd, args); 1818 } else { 1819 snprintf(buffer, SIZE, " No file writer\n"); 1820 result.append(buffer); 1821 } 1822 snprintf(buffer, SIZE, " Recorder: %p\n", this); 1823 snprintf(buffer, SIZE, " Output file (fd %d):\n", mOutputFd); 1824 result.append(buffer); 1825 snprintf(buffer, SIZE, " File format: %d\n", mOutputFormat); 1826 result.append(buffer); 1827 snprintf(buffer, SIZE, " Max file size (bytes): %" PRId64 "\n", mMaxFileSizeBytes); 1828 result.append(buffer); 1829 snprintf(buffer, SIZE, " Max file duration (us): %" PRId64 "\n", mMaxFileDurationUs); 1830 result.append(buffer); 1831 snprintf(buffer, SIZE, " File offset length (bits): %d\n", mUse64BitFileOffset? 64: 32); 1832 result.append(buffer); 1833 snprintf(buffer, SIZE, " Interleave duration (us): %d\n", mInterleaveDurationUs); 1834 result.append(buffer); 1835 snprintf(buffer, SIZE, " Progress notification: %" PRId64 " us\n", mTrackEveryTimeDurationUs); 1836 result.append(buffer); 1837 snprintf(buffer, SIZE, " Audio\n"); 1838 result.append(buffer); 1839 snprintf(buffer, SIZE, " Source: %d\n", mAudioSource); 1840 result.append(buffer); 1841 snprintf(buffer, SIZE, " Encoder: %d\n", mAudioEncoder); 1842 result.append(buffer); 1843 snprintf(buffer, SIZE, " Bit rate (bps): %d\n", mAudioBitRate); 1844 result.append(buffer); 1845 snprintf(buffer, SIZE, " Sampling rate (hz): %d\n", mSampleRate); 1846 result.append(buffer); 1847 snprintf(buffer, SIZE, " Number of channels: %d\n", mAudioChannels); 1848 result.append(buffer); 1849 snprintf(buffer, SIZE, " Max amplitude: %d\n", mAudioSourceNode == 0? 0: mAudioSourceNode->getMaxAmplitude()); 1850 result.append(buffer); 1851 snprintf(buffer, SIZE, " Video\n"); 1852 result.append(buffer); 1853 snprintf(buffer, SIZE, " Source: %d\n", mVideoSource); 1854 result.append(buffer); 1855 snprintf(buffer, SIZE, " Camera Id: %d\n", mCameraId); 1856 result.append(buffer); 1857 snprintf(buffer, SIZE, " Start time offset (ms): %d\n", mStartTimeOffsetMs); 1858 result.append(buffer); 1859 snprintf(buffer, SIZE, " Encoder: %d\n", mVideoEncoder); 1860 result.append(buffer); 1861 snprintf(buffer, SIZE, " Encoder profile: %d\n", mVideoEncoderProfile); 1862 result.append(buffer); 1863 snprintf(buffer, SIZE, " Encoder level: %d\n", mVideoEncoderLevel); 1864 result.append(buffer); 1865 snprintf(buffer, SIZE, " I frames interval (s): %d\n", mIFramesIntervalSec); 1866 result.append(buffer); 1867 snprintf(buffer, SIZE, " Frame size (pixels): %dx%d\n", mVideoWidth, mVideoHeight); 1868 result.append(buffer); 1869 snprintf(buffer, SIZE, " Frame rate (fps): %d\n", mFrameRate); 1870 result.append(buffer); 1871 snprintf(buffer, SIZE, " Bit rate (bps): %d\n", mVideoBitRate); 1872 result.append(buffer); 1873 ::write(fd, result.string(), result.size()); 1874 return OK; 1875 } 1876 } // namespace android 1877
