StagefrightRecorder.cpp revision 6d339f1f764bbd32e3381dae7bfa7c6c575bb493
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 59namespace android { 60 61// To collect the encoder usage for the battery app 62static 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 72StagefrightRecorder::StagefrightRecorder() 73 : mWriter(NULL), 74 mOutputFd(-1), 75 mAudioSource(AUDIO_SOURCE_CNT), 76 mVideoSource(VIDEO_SOURCE_LIST_END), 77 mCaptureTimeLapse(false), 78 mCaptureFps(0.0f), 79 mStarted(false) { 80 81 ALOGV("Constructor"); 82 reset(); 83} 84 85StagefrightRecorder::~StagefrightRecorder() { 86 ALOGV("Destructor"); 87 stop(); 88 89 if (mLooper != NULL) { 90 mLooper->stop(); 91 } 92} 93 94status_t StagefrightRecorder::init() { 95 ALOGV("init"); 96 97 mLooper = new ALooper; 98 mLooper->setName("recorder_looper"); 99 mLooper->start(); 100 101 return OK; 102} 103 104// The client side of mediaserver asks it to creat a SurfaceMediaSource 105// and return a interface reference. The client side will use that 106// while encoding GL Frames 107sp<IGraphicBufferProducer> StagefrightRecorder::querySurfaceMediaSource() const { 108 ALOGV("Get SurfaceMediaSource"); 109 return mGraphicBufferProducer; 110} 111 112status_t StagefrightRecorder::setAudioSource(audio_source_t as) { 113 ALOGV("setAudioSource: %d", as); 114 if (as < AUDIO_SOURCE_DEFAULT || 115 (as >= AUDIO_SOURCE_CNT && as != AUDIO_SOURCE_FM_TUNER)) { 116 ALOGE("Invalid audio source: %d", as); 117 return BAD_VALUE; 118 } 119 120 if (as == AUDIO_SOURCE_DEFAULT) { 121 mAudioSource = AUDIO_SOURCE_MIC; 122 } else { 123 mAudioSource = as; 124 } 125 126 return OK; 127} 128 129status_t StagefrightRecorder::setVideoSource(video_source vs) { 130 ALOGV("setVideoSource: %d", vs); 131 if (vs < VIDEO_SOURCE_DEFAULT || 132 vs >= VIDEO_SOURCE_LIST_END) { 133 ALOGE("Invalid video source: %d", vs); 134 return BAD_VALUE; 135 } 136 137 if (vs == VIDEO_SOURCE_DEFAULT) { 138 mVideoSource = VIDEO_SOURCE_CAMERA; 139 } else { 140 mVideoSource = vs; 141 } 142 143 return OK; 144} 145 146status_t StagefrightRecorder::setOutputFormat(output_format of) { 147 ALOGV("setOutputFormat: %d", of); 148 if (of < OUTPUT_FORMAT_DEFAULT || 149 of >= OUTPUT_FORMAT_LIST_END) { 150 ALOGE("Invalid output format: %d", of); 151 return BAD_VALUE; 152 } 153 154 if (of == OUTPUT_FORMAT_DEFAULT) { 155 mOutputFormat = OUTPUT_FORMAT_THREE_GPP; 156 } else { 157 mOutputFormat = of; 158 } 159 160 return OK; 161} 162 163status_t StagefrightRecorder::setAudioEncoder(audio_encoder ae) { 164 ALOGV("setAudioEncoder: %d", ae); 165 if (ae < AUDIO_ENCODER_DEFAULT || 166 ae >= AUDIO_ENCODER_LIST_END) { 167 ALOGE("Invalid audio encoder: %d", ae); 168 return BAD_VALUE; 169 } 170 171 if (ae == AUDIO_ENCODER_DEFAULT) { 172 mAudioEncoder = AUDIO_ENCODER_AMR_NB; 173 } else { 174 mAudioEncoder = ae; 175 } 176 177 return OK; 178} 179 180status_t StagefrightRecorder::setVideoEncoder(video_encoder ve) { 181 ALOGV("setVideoEncoder: %d", ve); 182 if (ve < VIDEO_ENCODER_DEFAULT || 183 ve >= VIDEO_ENCODER_LIST_END) { 184 ALOGE("Invalid video encoder: %d", ve); 185 return BAD_VALUE; 186 } 187 188 mVideoEncoder = ve; 189 190 return OK; 191} 192 193status_t StagefrightRecorder::setVideoSize(int width, int height) { 194 ALOGV("setVideoSize: %dx%d", width, height); 195 if (width <= 0 || height <= 0) { 196 ALOGE("Invalid video size: %dx%d", width, height); 197 return BAD_VALUE; 198 } 199 200 // Additional check on the dimension will be performed later 201 mVideoWidth = width; 202 mVideoHeight = height; 203 204 return OK; 205} 206 207status_t StagefrightRecorder::setVideoFrameRate(int frames_per_second) { 208 ALOGV("setVideoFrameRate: %d", frames_per_second); 209 if ((frames_per_second <= 0 && frames_per_second != -1) || 210 frames_per_second > kMaxHighSpeedFps) { 211 ALOGE("Invalid video frame rate: %d", frames_per_second); 212 return BAD_VALUE; 213 } 214 215 // Additional check on the frame rate will be performed later 216 mFrameRate = frames_per_second; 217 218 return OK; 219} 220 221status_t StagefrightRecorder::setCamera(const sp<ICamera> &camera, 222 const sp<ICameraRecordingProxy> &proxy) { 223 ALOGV("setCamera"); 224 if (camera == 0) { 225 ALOGE("camera is NULL"); 226 return BAD_VALUE; 227 } 228 if (proxy == 0) { 229 ALOGE("camera proxy is NULL"); 230 return BAD_VALUE; 231 } 232 233 mCamera = camera; 234 mCameraProxy = proxy; 235 return OK; 236} 237 238status_t StagefrightRecorder::setPreviewSurface(const sp<IGraphicBufferProducer> &surface) { 239 ALOGV("setPreviewSurface: %p", surface.get()); 240 mPreviewSurface = surface; 241 242 return OK; 243} 244 245status_t StagefrightRecorder::setOutputFile(int fd, int64_t offset, int64_t length) { 246 ALOGV("setOutputFile: %d, %lld, %lld", fd, offset, length); 247 // These don't make any sense, do they? 248 CHECK_EQ(offset, 0ll); 249 CHECK_EQ(length, 0ll); 250 251 if (fd < 0) { 252 ALOGE("Invalid file descriptor: %d", fd); 253 return -EBADF; 254 } 255 256 // start with a clean, empty file 257 ftruncate(fd, 0); 258 259 if (mOutputFd >= 0) { 260 ::close(mOutputFd); 261 } 262 mOutputFd = dup(fd); 263 264 return OK; 265} 266 267// Attempt to parse an float literal optionally surrounded by whitespace, 268// returns true on success, false otherwise. 269static bool safe_strtof(const char *s, float *val) { 270 char *end; 271 272 // It is lame, but according to man page, we have to set errno to 0 273 // before calling strtof(). 274 errno = 0; 275 *val = strtof(s, &end); 276 277 if (end == s || errno == ERANGE) { 278 return false; 279 } 280 281 // Skip trailing whitespace 282 while (isspace(*end)) { 283 ++end; 284 } 285 286 // For a successful return, the string must contain nothing but a valid 287 // float literal optionally surrounded by whitespace. 288 289 return *end == '\0'; 290} 291 292// Attempt to parse an int64 literal optionally surrounded by whitespace, 293// returns true on success, false otherwise. 294static bool safe_strtoi64(const char *s, int64_t *val) { 295 char *end; 296 297 // It is lame, but according to man page, we have to set errno to 0 298 // before calling strtoll(). 299 errno = 0; 300 *val = strtoll(s, &end, 10); 301 302 if (end == s || errno == ERANGE) { 303 return false; 304 } 305 306 // Skip trailing whitespace 307 while (isspace(*end)) { 308 ++end; 309 } 310 311 // For a successful return, the string must contain nothing but a valid 312 // int64 literal optionally surrounded by whitespace. 313 314 return *end == '\0'; 315} 316 317// Return true if the value is in [0, 0x007FFFFFFF] 318static bool safe_strtoi32(const char *s, int32_t *val) { 319 int64_t temp; 320 if (safe_strtoi64(s, &temp)) { 321 if (temp >= 0 && temp <= 0x007FFFFFFF) { 322 *val = static_cast<int32_t>(temp); 323 return true; 324 } 325 } 326 return false; 327} 328 329// Trim both leading and trailing whitespace from the given string. 330static void TrimString(String8 *s) { 331 size_t num_bytes = s->bytes(); 332 const char *data = s->string(); 333 334 size_t leading_space = 0; 335 while (leading_space < num_bytes && isspace(data[leading_space])) { 336 ++leading_space; 337 } 338 339 size_t i = num_bytes; 340 while (i > leading_space && isspace(data[i - 1])) { 341 --i; 342 } 343 344 s->setTo(String8(&data[leading_space], i - leading_space)); 345} 346 347status_t StagefrightRecorder::setParamAudioSamplingRate(int32_t sampleRate) { 348 ALOGV("setParamAudioSamplingRate: %d", sampleRate); 349 if (sampleRate <= 0) { 350 ALOGE("Invalid audio sampling rate: %d", sampleRate); 351 return BAD_VALUE; 352 } 353 354 // Additional check on the sample rate will be performed later. 355 mSampleRate = sampleRate; 356 return OK; 357} 358 359status_t StagefrightRecorder::setParamAudioNumberOfChannels(int32_t channels) { 360 ALOGV("setParamAudioNumberOfChannels: %d", channels); 361 if (channels <= 0 || channels >= 3) { 362 ALOGE("Invalid number of audio channels: %d", channels); 363 return BAD_VALUE; 364 } 365 366 // Additional check on the number of channels will be performed later. 367 mAudioChannels = channels; 368 return OK; 369} 370 371status_t StagefrightRecorder::setParamAudioEncodingBitRate(int32_t bitRate) { 372 ALOGV("setParamAudioEncodingBitRate: %d", bitRate); 373 if (bitRate <= 0) { 374 ALOGE("Invalid audio encoding bit rate: %d", bitRate); 375 return BAD_VALUE; 376 } 377 378 // The target bit rate may not be exactly the same as the requested. 379 // It depends on many factors, such as rate control, and the bit rate 380 // range that a specific encoder supports. The mismatch between the 381 // the target and requested bit rate will NOT be treated as an error. 382 mAudioBitRate = bitRate; 383 return OK; 384} 385 386status_t StagefrightRecorder::setParamVideoEncodingBitRate(int32_t bitRate) { 387 ALOGV("setParamVideoEncodingBitRate: %d", bitRate); 388 if (bitRate <= 0) { 389 ALOGE("Invalid video encoding bit rate: %d", bitRate); 390 return BAD_VALUE; 391 } 392 393 // The target bit rate may not be exactly the same as the requested. 394 // It depends on many factors, such as rate control, and the bit rate 395 // range that a specific encoder supports. The mismatch between the 396 // the target and requested bit rate will NOT be treated as an error. 397 mVideoBitRate = bitRate; 398 return OK; 399} 400 401// Always rotate clockwise, and only support 0, 90, 180 and 270 for now. 402status_t StagefrightRecorder::setParamVideoRotation(int32_t degrees) { 403 ALOGV("setParamVideoRotation: %d", degrees); 404 if (degrees < 0 || degrees % 90 != 0) { 405 ALOGE("Unsupported video rotation angle: %d", degrees); 406 return BAD_VALUE; 407 } 408 mRotationDegrees = degrees % 360; 409 return OK; 410} 411 412status_t StagefrightRecorder::setParamMaxFileDurationUs(int64_t timeUs) { 413 ALOGV("setParamMaxFileDurationUs: %lld us", timeUs); 414 415 // This is meant for backward compatibility for MediaRecorder.java 416 if (timeUs <= 0) { 417 ALOGW("Max file duration is not positive: %lld us. Disabling duration limit.", timeUs); 418 timeUs = 0; // Disable the duration limit for zero or negative values. 419 } else if (timeUs <= 100000LL) { // XXX: 100 milli-seconds 420 ALOGE("Max file duration is too short: %lld us", timeUs); 421 return BAD_VALUE; 422 } 423 424 if (timeUs <= 15 * 1000000LL) { 425 ALOGW("Target duration (%lld us) too short to be respected", timeUs); 426 } 427 mMaxFileDurationUs = timeUs; 428 return OK; 429} 430 431status_t StagefrightRecorder::setParamMaxFileSizeBytes(int64_t bytes) { 432 ALOGV("setParamMaxFileSizeBytes: %lld bytes", bytes); 433 434 // This is meant for backward compatibility for MediaRecorder.java 435 if (bytes <= 0) { 436 ALOGW("Max file size is not positive: %lld bytes. " 437 "Disabling file size limit.", bytes); 438 bytes = 0; // Disable the file size limit for zero or negative values. 439 } else if (bytes <= 1024) { // XXX: 1 kB 440 ALOGE("Max file size is too small: %lld bytes", bytes); 441 return BAD_VALUE; 442 } 443 444 if (bytes <= 100 * 1024) { 445 ALOGW("Target file size (%lld bytes) is too small to be respected", bytes); 446 } 447 448 mMaxFileSizeBytes = bytes; 449 return OK; 450} 451 452status_t StagefrightRecorder::setParamInterleaveDuration(int32_t durationUs) { 453 ALOGV("setParamInterleaveDuration: %d", durationUs); 454 if (durationUs <= 500000) { // 500 ms 455 // If interleave duration is too small, it is very inefficient to do 456 // interleaving since the metadata overhead will count for a significant 457 // portion of the saved contents 458 ALOGE("Audio/video interleave duration is too small: %d us", durationUs); 459 return BAD_VALUE; 460 } else if (durationUs >= 10000000) { // 10 seconds 461 // If interleaving duration is too large, it can cause the recording 462 // session to use too much memory since we have to save the output 463 // data before we write them out 464 ALOGE("Audio/video interleave duration is too large: %d us", durationUs); 465 return BAD_VALUE; 466 } 467 mInterleaveDurationUs = durationUs; 468 return OK; 469} 470 471// If seconds < 0, only the first frame is I frame, and rest are all P frames 472// If seconds == 0, all frames are encoded as I frames. No P frames 473// If seconds > 0, it is the time spacing (seconds) between 2 neighboring I frames 474status_t StagefrightRecorder::setParamVideoIFramesInterval(int32_t seconds) { 475 ALOGV("setParamVideoIFramesInterval: %d seconds", seconds); 476 mIFramesIntervalSec = seconds; 477 return OK; 478} 479 480status_t StagefrightRecorder::setParam64BitFileOffset(bool use64Bit) { 481 ALOGV("setParam64BitFileOffset: %s", 482 use64Bit? "use 64 bit file offset": "use 32 bit file offset"); 483 mUse64BitFileOffset = use64Bit; 484 return OK; 485} 486 487status_t StagefrightRecorder::setParamVideoCameraId(int32_t cameraId) { 488 ALOGV("setParamVideoCameraId: %d", cameraId); 489 if (cameraId < 0) { 490 return BAD_VALUE; 491 } 492 mCameraId = cameraId; 493 return OK; 494} 495 496status_t StagefrightRecorder::setParamTrackTimeStatus(int64_t timeDurationUs) { 497 ALOGV("setParamTrackTimeStatus: %lld", timeDurationUs); 498 if (timeDurationUs < 20000) { // Infeasible if shorter than 20 ms? 499 ALOGE("Tracking time duration too short: %lld us", timeDurationUs); 500 return BAD_VALUE; 501 } 502 mTrackEveryTimeDurationUs = timeDurationUs; 503 return OK; 504} 505 506status_t StagefrightRecorder::setParamVideoEncoderProfile(int32_t profile) { 507 ALOGV("setParamVideoEncoderProfile: %d", profile); 508 509 // Additional check will be done later when we load the encoder. 510 // For now, we are accepting values defined in OpenMAX IL. 511 mVideoEncoderProfile = profile; 512 return OK; 513} 514 515status_t StagefrightRecorder::setParamVideoEncoderLevel(int32_t level) { 516 ALOGV("setParamVideoEncoderLevel: %d", level); 517 518 // Additional check will be done later when we load the encoder. 519 // For now, we are accepting values defined in OpenMAX IL. 520 mVideoEncoderLevel = level; 521 return OK; 522} 523 524status_t StagefrightRecorder::setParamMovieTimeScale(int32_t timeScale) { 525 ALOGV("setParamMovieTimeScale: %d", timeScale); 526 527 // The range is set to be the same as the audio's time scale range 528 // since audio's time scale has a wider range. 529 if (timeScale < 600 || timeScale > 96000) { 530 ALOGE("Time scale (%d) for movie is out of range [600, 96000]", timeScale); 531 return BAD_VALUE; 532 } 533 mMovieTimeScale = timeScale; 534 return OK; 535} 536 537status_t StagefrightRecorder::setParamVideoTimeScale(int32_t timeScale) { 538 ALOGV("setParamVideoTimeScale: %d", timeScale); 539 540 // 60000 is chosen to make sure that each video frame from a 60-fps 541 // video has 1000 ticks. 542 if (timeScale < 600 || timeScale > 60000) { 543 ALOGE("Time scale (%d) for video is out of range [600, 60000]", timeScale); 544 return BAD_VALUE; 545 } 546 mVideoTimeScale = timeScale; 547 return OK; 548} 549 550status_t StagefrightRecorder::setParamAudioTimeScale(int32_t timeScale) { 551 ALOGV("setParamAudioTimeScale: %d", timeScale); 552 553 // 96000 Hz is the highest sampling rate support in AAC. 554 if (timeScale < 600 || timeScale > 96000) { 555 ALOGE("Time scale (%d) for audio is out of range [600, 96000]", timeScale); 556 return BAD_VALUE; 557 } 558 mAudioTimeScale = timeScale; 559 return OK; 560} 561 562status_t StagefrightRecorder::setParamTimeLapseEnable(int32_t timeLapseEnable) { 563 ALOGV("setParamTimeLapseEnable: %d", timeLapseEnable); 564 565 if(timeLapseEnable == 0) { 566 mCaptureTimeLapse = false; 567 } else if (timeLapseEnable == 1) { 568 mCaptureTimeLapse = true; 569 } else { 570 return BAD_VALUE; 571 } 572 return OK; 573} 574 575status_t StagefrightRecorder::setParamTimeLapseFps(float fps) { 576 ALOGV("setParamTimeLapseFps: %.2f", fps); 577 578 int64_t timeUs = (int64_t) (1000000.0 / fps + 0.5f); 579 580 // Not allowing time more than a day 581 if (timeUs <= 0 || timeUs > 86400*1E6) { 582 ALOGE("Time between time lapse frame capture (%lld) is out of range [0, 1 Day]", timeUs); 583 return BAD_VALUE; 584 } 585 586 mCaptureFps = fps; 587 mTimeBetweenTimeLapseFrameCaptureUs = timeUs; 588 return OK; 589} 590 591status_t StagefrightRecorder::setParamGeoDataLongitude( 592 int64_t longitudex10000) { 593 594 if (longitudex10000 > 1800000 || longitudex10000 < -1800000) { 595 return BAD_VALUE; 596 } 597 mLongitudex10000 = longitudex10000; 598 return OK; 599} 600 601status_t StagefrightRecorder::setParamGeoDataLatitude( 602 int64_t latitudex10000) { 603 604 if (latitudex10000 > 900000 || latitudex10000 < -900000) { 605 return BAD_VALUE; 606 } 607 mLatitudex10000 = latitudex10000; 608 return OK; 609} 610 611status_t StagefrightRecorder::setParameter( 612 const String8 &key, const String8 &value) { 613 ALOGV("setParameter: key (%s) => value (%s)", key.string(), value.string()); 614 if (key == "max-duration") { 615 int64_t max_duration_ms; 616 if (safe_strtoi64(value.string(), &max_duration_ms)) { 617 return setParamMaxFileDurationUs(1000LL * max_duration_ms); 618 } 619 } else if (key == "max-filesize") { 620 int64_t max_filesize_bytes; 621 if (safe_strtoi64(value.string(), &max_filesize_bytes)) { 622 return setParamMaxFileSizeBytes(max_filesize_bytes); 623 } 624 } else if (key == "interleave-duration-us") { 625 int32_t durationUs; 626 if (safe_strtoi32(value.string(), &durationUs)) { 627 return setParamInterleaveDuration(durationUs); 628 } 629 } else if (key == "param-movie-time-scale") { 630 int32_t timeScale; 631 if (safe_strtoi32(value.string(), &timeScale)) { 632 return setParamMovieTimeScale(timeScale); 633 } 634 } else if (key == "param-use-64bit-offset") { 635 int32_t use64BitOffset; 636 if (safe_strtoi32(value.string(), &use64BitOffset)) { 637 return setParam64BitFileOffset(use64BitOffset != 0); 638 } 639 } else if (key == "param-geotag-longitude") { 640 int64_t longitudex10000; 641 if (safe_strtoi64(value.string(), &longitudex10000)) { 642 return setParamGeoDataLongitude(longitudex10000); 643 } 644 } else if (key == "param-geotag-latitude") { 645 int64_t latitudex10000; 646 if (safe_strtoi64(value.string(), &latitudex10000)) { 647 return setParamGeoDataLatitude(latitudex10000); 648 } 649 } else if (key == "param-track-time-status") { 650 int64_t timeDurationUs; 651 if (safe_strtoi64(value.string(), &timeDurationUs)) { 652 return setParamTrackTimeStatus(timeDurationUs); 653 } 654 } else if (key == "audio-param-sampling-rate") { 655 int32_t sampling_rate; 656 if (safe_strtoi32(value.string(), &sampling_rate)) { 657 return setParamAudioSamplingRate(sampling_rate); 658 } 659 } else if (key == "audio-param-number-of-channels") { 660 int32_t number_of_channels; 661 if (safe_strtoi32(value.string(), &number_of_channels)) { 662 return setParamAudioNumberOfChannels(number_of_channels); 663 } 664 } else if (key == "audio-param-encoding-bitrate") { 665 int32_t audio_bitrate; 666 if (safe_strtoi32(value.string(), &audio_bitrate)) { 667 return setParamAudioEncodingBitRate(audio_bitrate); 668 } 669 } else if (key == "audio-param-time-scale") { 670 int32_t timeScale; 671 if (safe_strtoi32(value.string(), &timeScale)) { 672 return setParamAudioTimeScale(timeScale); 673 } 674 } else if (key == "video-param-encoding-bitrate") { 675 int32_t video_bitrate; 676 if (safe_strtoi32(value.string(), &video_bitrate)) { 677 return setParamVideoEncodingBitRate(video_bitrate); 678 } 679 } else if (key == "video-param-rotation-angle-degrees") { 680 int32_t degrees; 681 if (safe_strtoi32(value.string(), °rees)) { 682 return setParamVideoRotation(degrees); 683 } 684 } else if (key == "video-param-i-frames-interval") { 685 int32_t seconds; 686 if (safe_strtoi32(value.string(), &seconds)) { 687 return setParamVideoIFramesInterval(seconds); 688 } 689 } else if (key == "video-param-encoder-profile") { 690 int32_t profile; 691 if (safe_strtoi32(value.string(), &profile)) { 692 return setParamVideoEncoderProfile(profile); 693 } 694 } else if (key == "video-param-encoder-level") { 695 int32_t level; 696 if (safe_strtoi32(value.string(), &level)) { 697 return setParamVideoEncoderLevel(level); 698 } 699 } else if (key == "video-param-camera-id") { 700 int32_t cameraId; 701 if (safe_strtoi32(value.string(), &cameraId)) { 702 return setParamVideoCameraId(cameraId); 703 } 704 } else if (key == "video-param-time-scale") { 705 int32_t timeScale; 706 if (safe_strtoi32(value.string(), &timeScale)) { 707 return setParamVideoTimeScale(timeScale); 708 } 709 } else if (key == "time-lapse-enable") { 710 int32_t timeLapseEnable; 711 if (safe_strtoi32(value.string(), &timeLapseEnable)) { 712 return setParamTimeLapseEnable(timeLapseEnable); 713 } 714 } else if (key == "time-lapse-fps") { 715 float fps; 716 if (safe_strtof(value.string(), &fps)) { 717 return setParamTimeLapseFps(fps); 718 } 719 } else { 720 ALOGE("setParameter: failed to find key %s", key.string()); 721 } 722 return BAD_VALUE; 723} 724 725status_t StagefrightRecorder::setParameters(const String8 ¶ms) { 726 ALOGV("setParameters: %s", params.string()); 727 const char *cparams = params.string(); 728 const char *key_start = cparams; 729 for (;;) { 730 const char *equal_pos = strchr(key_start, '='); 731 if (equal_pos == NULL) { 732 ALOGE("Parameters %s miss a value", cparams); 733 return BAD_VALUE; 734 } 735 String8 key(key_start, equal_pos - key_start); 736 TrimString(&key); 737 if (key.length() == 0) { 738 ALOGE("Parameters %s contains an empty key", cparams); 739 return BAD_VALUE; 740 } 741 const char *value_start = equal_pos + 1; 742 const char *semicolon_pos = strchr(value_start, ';'); 743 String8 value; 744 if (semicolon_pos == NULL) { 745 value.setTo(value_start); 746 } else { 747 value.setTo(value_start, semicolon_pos - value_start); 748 } 749 if (setParameter(key, value) != OK) { 750 return BAD_VALUE; 751 } 752 if (semicolon_pos == NULL) { 753 break; // Reaches the end 754 } 755 key_start = semicolon_pos + 1; 756 } 757 return OK; 758} 759 760status_t StagefrightRecorder::setListener(const sp<IMediaRecorderClient> &listener) { 761 mListener = listener; 762 763 return OK; 764} 765 766status_t StagefrightRecorder::setClientName(const String16& clientName) { 767 mClientName = clientName; 768 769 return OK; 770} 771 772status_t StagefrightRecorder::prepareInternal() { 773 ALOGV("prepare"); 774 if (mOutputFd < 0) { 775 ALOGE("Output file descriptor is invalid"); 776 return INVALID_OPERATION; 777 } 778 779 // Get UID here for permission checking 780 mClientUid = IPCThreadState::self()->getCallingUid(); 781 782 status_t status = OK; 783 784 switch (mOutputFormat) { 785 case OUTPUT_FORMAT_DEFAULT: 786 case OUTPUT_FORMAT_THREE_GPP: 787 case OUTPUT_FORMAT_MPEG_4: 788 case OUTPUT_FORMAT_WEBM: 789 status = setupMPEG4orWEBMRecording(); 790 break; 791 792 case OUTPUT_FORMAT_AMR_NB: 793 case OUTPUT_FORMAT_AMR_WB: 794 status = setupAMRRecording(); 795 break; 796 797 case OUTPUT_FORMAT_AAC_ADIF: 798 case OUTPUT_FORMAT_AAC_ADTS: 799 status = setupAACRecording(); 800 break; 801 802 case OUTPUT_FORMAT_RTP_AVP: 803 status = setupRTPRecording(); 804 break; 805 806 case OUTPUT_FORMAT_MPEG2TS: 807 status = setupMPEG2TSRecording(); 808 break; 809 810 default: 811 ALOGE("Unsupported output file format: %d", mOutputFormat); 812 status = UNKNOWN_ERROR; 813 break; 814 } 815 816 return status; 817} 818 819status_t StagefrightRecorder::prepare() { 820 if (mVideoSource == VIDEO_SOURCE_SURFACE) { 821 return prepareInternal(); 822 } 823 return OK; 824} 825 826status_t StagefrightRecorder::start() { 827 ALOGV("start"); 828 if (mOutputFd < 0) { 829 ALOGE("Output file descriptor is invalid"); 830 return INVALID_OPERATION; 831 } 832 833 status_t status = OK; 834 835 if (mVideoSource != VIDEO_SOURCE_SURFACE) { 836 status = prepareInternal(); 837 if (status != OK) { 838 return status; 839 } 840 } 841 842 if (mWriter == NULL) { 843 ALOGE("File writer is not avaialble"); 844 return UNKNOWN_ERROR; 845 } 846 847 switch (mOutputFormat) { 848 case OUTPUT_FORMAT_DEFAULT: 849 case OUTPUT_FORMAT_THREE_GPP: 850 case OUTPUT_FORMAT_MPEG_4: 851 case OUTPUT_FORMAT_WEBM: 852 { 853 bool isMPEG4 = true; 854 if (mOutputFormat == OUTPUT_FORMAT_WEBM) { 855 isMPEG4 = false; 856 } 857 sp<MetaData> meta = new MetaData; 858 setupMPEG4orWEBMMetaData(&meta); 859 status = mWriter->start(meta.get()); 860 break; 861 } 862 863 case OUTPUT_FORMAT_AMR_NB: 864 case OUTPUT_FORMAT_AMR_WB: 865 case OUTPUT_FORMAT_AAC_ADIF: 866 case OUTPUT_FORMAT_AAC_ADTS: 867 case OUTPUT_FORMAT_RTP_AVP: 868 case OUTPUT_FORMAT_MPEG2TS: 869 { 870 status = mWriter->start(); 871 break; 872 } 873 874 default: 875 { 876 ALOGE("Unsupported output file format: %d", mOutputFormat); 877 status = UNKNOWN_ERROR; 878 break; 879 } 880 } 881 882 if (status != OK) { 883 mWriter.clear(); 884 mWriter = NULL; 885 } 886 887 if ((status == OK) && (!mStarted)) { 888 mStarted = true; 889 890 uint32_t params = IMediaPlayerService::kBatteryDataCodecStarted; 891 if (mAudioSource != AUDIO_SOURCE_CNT) { 892 params |= IMediaPlayerService::kBatteryDataTrackAudio; 893 } 894 if (mVideoSource != VIDEO_SOURCE_LIST_END) { 895 params |= IMediaPlayerService::kBatteryDataTrackVideo; 896 } 897 898 addBatteryData(params); 899 } 900 901 return status; 902} 903 904sp<MediaSource> StagefrightRecorder::createAudioSource() { 905 sp<AudioSource> audioSource = 906 new AudioSource( 907 mAudioSource, 908 mSampleRate, 909 mAudioChannels); 910 911 status_t err = audioSource->initCheck(); 912 913 if (err != OK) { 914 ALOGE("audio source is not initialized"); 915 return NULL; 916 } 917 918 sp<AMessage> format = new AMessage; 919 switch (mAudioEncoder) { 920 case AUDIO_ENCODER_AMR_NB: 921 case AUDIO_ENCODER_DEFAULT: 922 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AMR_NB); 923 break; 924 case AUDIO_ENCODER_AMR_WB: 925 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AMR_WB); 926 break; 927 case AUDIO_ENCODER_AAC: 928 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC); 929 format->setInt32("aac-profile", OMX_AUDIO_AACObjectLC); 930 break; 931 case AUDIO_ENCODER_HE_AAC: 932 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC); 933 format->setInt32("aac-profile", OMX_AUDIO_AACObjectHE); 934 break; 935 case AUDIO_ENCODER_AAC_ELD: 936 format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC); 937 format->setInt32("aac-profile", OMX_AUDIO_AACObjectELD); 938 break; 939 940 default: 941 ALOGE("Unknown audio encoder: %d", mAudioEncoder); 942 return NULL; 943 } 944 945 int32_t maxInputSize; 946 CHECK(audioSource->getFormat()->findInt32( 947 kKeyMaxInputSize, &maxInputSize)); 948 949 format->setInt32("max-input-size", maxInputSize); 950 format->setInt32("channel-count", mAudioChannels); 951 format->setInt32("sample-rate", mSampleRate); 952 format->setInt32("bitrate", mAudioBitRate); 953 if (mAudioTimeScale > 0) { 954 format->setInt32("time-scale", mAudioTimeScale); 955 } 956 957 sp<MediaSource> audioEncoder = 958 MediaCodecSource::Create(mLooper, format, audioSource); 959 mAudioSourceNode = audioSource; 960 961 if (audioEncoder == NULL) { 962 ALOGE("Failed to create audio encoder"); 963 } 964 965 return audioEncoder; 966} 967 968status_t StagefrightRecorder::setupAACRecording() { 969 // FIXME: 970 // Add support for OUTPUT_FORMAT_AAC_ADIF 971 CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_AAC_ADTS); 972 973 CHECK(mAudioEncoder == AUDIO_ENCODER_AAC || 974 mAudioEncoder == AUDIO_ENCODER_HE_AAC || 975 mAudioEncoder == AUDIO_ENCODER_AAC_ELD); 976 CHECK(mAudioSource != AUDIO_SOURCE_CNT); 977 978 mWriter = new AACWriter(mOutputFd); 979 return setupRawAudioRecording(); 980} 981 982status_t StagefrightRecorder::setupAMRRecording() { 983 CHECK(mOutputFormat == OUTPUT_FORMAT_AMR_NB || 984 mOutputFormat == OUTPUT_FORMAT_AMR_WB); 985 986 if (mOutputFormat == OUTPUT_FORMAT_AMR_NB) { 987 if (mAudioEncoder != AUDIO_ENCODER_DEFAULT && 988 mAudioEncoder != AUDIO_ENCODER_AMR_NB) { 989 ALOGE("Invalid encoder %d used for AMRNB recording", 990 mAudioEncoder); 991 return BAD_VALUE; 992 } 993 } else { // mOutputFormat must be OUTPUT_FORMAT_AMR_WB 994 if (mAudioEncoder != AUDIO_ENCODER_AMR_WB) { 995 ALOGE("Invlaid encoder %d used for AMRWB recording", 996 mAudioEncoder); 997 return BAD_VALUE; 998 } 999 } 1000 1001 mWriter = new AMRWriter(mOutputFd); 1002 return setupRawAudioRecording(); 1003} 1004 1005status_t StagefrightRecorder::setupRawAudioRecording() { 1006 if (mAudioSource >= AUDIO_SOURCE_CNT && mAudioSource != AUDIO_SOURCE_FM_TUNER) { 1007 ALOGE("Invalid audio source: %d", mAudioSource); 1008 return BAD_VALUE; 1009 } 1010 1011 status_t status = BAD_VALUE; 1012 if (OK != (status = checkAudioEncoderCapabilities())) { 1013 return status; 1014 } 1015 1016 sp<MediaSource> audioEncoder = createAudioSource(); 1017 if (audioEncoder == NULL) { 1018 return UNKNOWN_ERROR; 1019 } 1020 1021 CHECK(mWriter != 0); 1022 mWriter->addSource(audioEncoder); 1023 1024 if (mMaxFileDurationUs != 0) { 1025 mWriter->setMaxFileDuration(mMaxFileDurationUs); 1026 } 1027 if (mMaxFileSizeBytes != 0) { 1028 mWriter->setMaxFileSize(mMaxFileSizeBytes); 1029 } 1030 mWriter->setListener(mListener); 1031 1032 return OK; 1033} 1034 1035status_t StagefrightRecorder::setupRTPRecording() { 1036 CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_RTP_AVP); 1037 1038 if ((mAudioSource != AUDIO_SOURCE_CNT 1039 && mVideoSource != VIDEO_SOURCE_LIST_END) 1040 || (mAudioSource == AUDIO_SOURCE_CNT 1041 && mVideoSource == VIDEO_SOURCE_LIST_END)) { 1042 // Must have exactly one source. 1043 return BAD_VALUE; 1044 } 1045 1046 if (mOutputFd < 0) { 1047 return BAD_VALUE; 1048 } 1049 1050 sp<MediaSource> source; 1051 1052 if (mAudioSource != AUDIO_SOURCE_CNT) { 1053 source = createAudioSource(); 1054 } else { 1055 setDefaultVideoEncoderIfNecessary(); 1056 1057 sp<MediaSource> mediaSource; 1058 status_t err = setupMediaSource(&mediaSource); 1059 if (err != OK) { 1060 return err; 1061 } 1062 1063 err = setupVideoEncoder(mediaSource, &source); 1064 if (err != OK) { 1065 return err; 1066 } 1067 } 1068 1069 mWriter = new ARTPWriter(mOutputFd); 1070 mWriter->addSource(source); 1071 mWriter->setListener(mListener); 1072 1073 return OK; 1074} 1075 1076status_t StagefrightRecorder::setupMPEG2TSRecording() { 1077 CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_MPEG2TS); 1078 1079 sp<MediaWriter> writer = new MPEG2TSWriter(mOutputFd); 1080 1081 if (mAudioSource != AUDIO_SOURCE_CNT) { 1082 if (mAudioEncoder != AUDIO_ENCODER_AAC && 1083 mAudioEncoder != AUDIO_ENCODER_HE_AAC && 1084 mAudioEncoder != AUDIO_ENCODER_AAC_ELD) { 1085 return ERROR_UNSUPPORTED; 1086 } 1087 1088 status_t err = setupAudioEncoder(writer); 1089 1090 if (err != OK) { 1091 return err; 1092 } 1093 } 1094 1095 if (mVideoSource < VIDEO_SOURCE_LIST_END) { 1096 if (mVideoEncoder != VIDEO_ENCODER_H264) { 1097 ALOGE("MPEG2TS recording only supports H.264 encoding!"); 1098 return ERROR_UNSUPPORTED; 1099 } 1100 1101 sp<MediaSource> mediaSource; 1102 status_t err = setupMediaSource(&mediaSource); 1103 if (err != OK) { 1104 return err; 1105 } 1106 1107 sp<MediaSource> encoder; 1108 err = setupVideoEncoder(mediaSource, &encoder); 1109 1110 if (err != OK) { 1111 return err; 1112 } 1113 1114 writer->addSource(encoder); 1115 } 1116 1117 if (mMaxFileDurationUs != 0) { 1118 writer->setMaxFileDuration(mMaxFileDurationUs); 1119 } 1120 1121 if (mMaxFileSizeBytes != 0) { 1122 writer->setMaxFileSize(mMaxFileSizeBytes); 1123 } 1124 1125 mWriter = writer; 1126 1127 return OK; 1128} 1129 1130void StagefrightRecorder::clipVideoFrameRate() { 1131 ALOGV("clipVideoFrameRate: encoder %d", mVideoEncoder); 1132 if (mFrameRate == -1) { 1133 mFrameRate = mEncoderProfiles->getCamcorderProfileParamByName( 1134 "vid.fps", mCameraId, CAMCORDER_QUALITY_LOW); 1135 ALOGW("Using default video fps %d", mFrameRate); 1136 } 1137 1138 int minFrameRate = mEncoderProfiles->getVideoEncoderParamByName( 1139 "enc.vid.fps.min", mVideoEncoder); 1140 int maxFrameRate = mEncoderProfiles->getVideoEncoderParamByName( 1141 "enc.vid.fps.max", mVideoEncoder); 1142 if (mFrameRate < minFrameRate && minFrameRate != -1) { 1143 ALOGW("Intended video encoding frame rate (%d fps) is too small" 1144 " and will be set to (%d fps)", mFrameRate, minFrameRate); 1145 mFrameRate = minFrameRate; 1146 } else if (mFrameRate > maxFrameRate && maxFrameRate != -1) { 1147 ALOGW("Intended video encoding frame rate (%d fps) is too large" 1148 " and will be set to (%d fps)", mFrameRate, maxFrameRate); 1149 mFrameRate = maxFrameRate; 1150 } 1151} 1152 1153void StagefrightRecorder::clipVideoBitRate() { 1154 ALOGV("clipVideoBitRate: encoder %d", mVideoEncoder); 1155 int minBitRate = mEncoderProfiles->getVideoEncoderParamByName( 1156 "enc.vid.bps.min", mVideoEncoder); 1157 int maxBitRate = mEncoderProfiles->getVideoEncoderParamByName( 1158 "enc.vid.bps.max", mVideoEncoder); 1159 if (mVideoBitRate < minBitRate && minBitRate != -1) { 1160 ALOGW("Intended video encoding bit rate (%d bps) is too small" 1161 " and will be set to (%d bps)", mVideoBitRate, minBitRate); 1162 mVideoBitRate = minBitRate; 1163 } else if (mVideoBitRate > maxBitRate && maxBitRate != -1) { 1164 ALOGW("Intended video encoding bit rate (%d bps) is too large" 1165 " and will be set to (%d bps)", mVideoBitRate, maxBitRate); 1166 mVideoBitRate = maxBitRate; 1167 } 1168} 1169 1170void StagefrightRecorder::clipVideoFrameWidth() { 1171 ALOGV("clipVideoFrameWidth: encoder %d", mVideoEncoder); 1172 int minFrameWidth = mEncoderProfiles->getVideoEncoderParamByName( 1173 "enc.vid.width.min", mVideoEncoder); 1174 int maxFrameWidth = mEncoderProfiles->getVideoEncoderParamByName( 1175 "enc.vid.width.max", mVideoEncoder); 1176 if (mVideoWidth < minFrameWidth && minFrameWidth != -1) { 1177 ALOGW("Intended video encoding frame width (%d) is too small" 1178 " and will be set to (%d)", mVideoWidth, minFrameWidth); 1179 mVideoWidth = minFrameWidth; 1180 } else if (mVideoWidth > maxFrameWidth && maxFrameWidth != -1) { 1181 ALOGW("Intended video encoding frame width (%d) is too large" 1182 " and will be set to (%d)", mVideoWidth, maxFrameWidth); 1183 mVideoWidth = maxFrameWidth; 1184 } 1185} 1186 1187status_t StagefrightRecorder::checkVideoEncoderCapabilities( 1188 bool *supportsCameraSourceMetaDataMode) { 1189 /* hardware codecs must support camera source meta data mode */ 1190 Vector<CodecCapabilities> codecs; 1191 OMXClient client; 1192 CHECK_EQ(client.connect(), (status_t)OK); 1193 QueryCodecs( 1194 client.interface(), 1195 (mVideoEncoder == VIDEO_ENCODER_H263 ? MEDIA_MIMETYPE_VIDEO_H263 : 1196 mVideoEncoder == VIDEO_ENCODER_MPEG_4_SP ? MEDIA_MIMETYPE_VIDEO_MPEG4 : 1197 mVideoEncoder == VIDEO_ENCODER_VP8 ? MEDIA_MIMETYPE_VIDEO_VP8 : 1198 mVideoEncoder == VIDEO_ENCODER_H264 ? MEDIA_MIMETYPE_VIDEO_AVC : ""), 1199 false /* decoder */, true /* hwCodec */, &codecs); 1200 *supportsCameraSourceMetaDataMode = codecs.size() > 0; 1201 ALOGV("encoder %s camera source meta-data mode", 1202 *supportsCameraSourceMetaDataMode ? "supports" : "DOES NOT SUPPORT"); 1203 1204 if (!mCaptureTimeLapse) { 1205 // Dont clip for time lapse capture as encoder will have enough 1206 // time to encode because of slow capture rate of time lapse. 1207 clipVideoBitRate(); 1208 clipVideoFrameRate(); 1209 clipVideoFrameWidth(); 1210 clipVideoFrameHeight(); 1211 setDefaultProfileIfNecessary(); 1212 } 1213 return OK; 1214} 1215 1216// Set to use AVC baseline profile if the encoding parameters matches 1217// CAMCORDER_QUALITY_LOW profile; this is for the sake of MMS service. 1218void StagefrightRecorder::setDefaultProfileIfNecessary() { 1219 ALOGV("setDefaultProfileIfNecessary"); 1220 1221 camcorder_quality quality = CAMCORDER_QUALITY_LOW; 1222 1223 int64_t durationUs = mEncoderProfiles->getCamcorderProfileParamByName( 1224 "duration", mCameraId, quality) * 1000000LL; 1225 1226 int fileFormat = mEncoderProfiles->getCamcorderProfileParamByName( 1227 "file.format", mCameraId, quality); 1228 1229 int videoCodec = mEncoderProfiles->getCamcorderProfileParamByName( 1230 "vid.codec", mCameraId, quality); 1231 1232 int videoBitRate = mEncoderProfiles->getCamcorderProfileParamByName( 1233 "vid.bps", mCameraId, quality); 1234 1235 int videoFrameRate = mEncoderProfiles->getCamcorderProfileParamByName( 1236 "vid.fps", mCameraId, quality); 1237 1238 int videoFrameWidth = mEncoderProfiles->getCamcorderProfileParamByName( 1239 "vid.width", mCameraId, quality); 1240 1241 int videoFrameHeight = mEncoderProfiles->getCamcorderProfileParamByName( 1242 "vid.height", mCameraId, quality); 1243 1244 int audioCodec = mEncoderProfiles->getCamcorderProfileParamByName( 1245 "aud.codec", mCameraId, quality); 1246 1247 int audioBitRate = mEncoderProfiles->getCamcorderProfileParamByName( 1248 "aud.bps", mCameraId, quality); 1249 1250 int audioSampleRate = mEncoderProfiles->getCamcorderProfileParamByName( 1251 "aud.hz", mCameraId, quality); 1252 1253 int audioChannels = mEncoderProfiles->getCamcorderProfileParamByName( 1254 "aud.ch", mCameraId, quality); 1255 1256 if (durationUs == mMaxFileDurationUs && 1257 fileFormat == mOutputFormat && 1258 videoCodec == mVideoEncoder && 1259 videoBitRate == mVideoBitRate && 1260 videoFrameRate == mFrameRate && 1261 videoFrameWidth == mVideoWidth && 1262 videoFrameHeight == mVideoHeight && 1263 audioCodec == mAudioEncoder && 1264 audioBitRate == mAudioBitRate && 1265 audioSampleRate == mSampleRate && 1266 audioChannels == mAudioChannels) { 1267 if (videoCodec == VIDEO_ENCODER_H264) { 1268 ALOGI("Force to use AVC baseline profile"); 1269 setParamVideoEncoderProfile(OMX_VIDEO_AVCProfileBaseline); 1270 // set 0 for invalid levels - this will be rejected by the 1271 // codec if it cannot handle it during configure 1272 setParamVideoEncoderLevel(ACodec::getAVCLevelFor( 1273 videoFrameWidth, videoFrameHeight, videoFrameRate, videoBitRate)); 1274 } 1275 } 1276} 1277 1278void StagefrightRecorder::setDefaultVideoEncoderIfNecessary() { 1279 if (mVideoEncoder == VIDEO_ENCODER_DEFAULT) { 1280 if (mOutputFormat == OUTPUT_FORMAT_WEBM) { 1281 // default to VP8 for WEBM recording 1282 mVideoEncoder = VIDEO_ENCODER_VP8; 1283 } else { 1284 // pick the default encoder for CAMCORDER_QUALITY_LOW 1285 int videoCodec = mEncoderProfiles->getCamcorderProfileParamByName( 1286 "vid.codec", mCameraId, CAMCORDER_QUALITY_LOW); 1287 1288 if (videoCodec > VIDEO_ENCODER_DEFAULT && 1289 videoCodec < VIDEO_ENCODER_LIST_END) { 1290 mVideoEncoder = (video_encoder)videoCodec; 1291 } else { 1292 // default to H.264 if camcorder profile not available 1293 mVideoEncoder = VIDEO_ENCODER_H264; 1294 } 1295 } 1296 } 1297} 1298 1299status_t StagefrightRecorder::checkAudioEncoderCapabilities() { 1300 clipAudioBitRate(); 1301 clipAudioSampleRate(); 1302 clipNumberOfAudioChannels(); 1303 return OK; 1304} 1305 1306void StagefrightRecorder::clipAudioBitRate() { 1307 ALOGV("clipAudioBitRate: encoder %d", mAudioEncoder); 1308 1309 int minAudioBitRate = 1310 mEncoderProfiles->getAudioEncoderParamByName( 1311 "enc.aud.bps.min", mAudioEncoder); 1312 if (minAudioBitRate != -1 && mAudioBitRate < minAudioBitRate) { 1313 ALOGW("Intended audio encoding bit rate (%d) is too small" 1314 " and will be set to (%d)", mAudioBitRate, minAudioBitRate); 1315 mAudioBitRate = minAudioBitRate; 1316 } 1317 1318 int maxAudioBitRate = 1319 mEncoderProfiles->getAudioEncoderParamByName( 1320 "enc.aud.bps.max", mAudioEncoder); 1321 if (maxAudioBitRate != -1 && mAudioBitRate > maxAudioBitRate) { 1322 ALOGW("Intended audio encoding bit rate (%d) is too large" 1323 " and will be set to (%d)", mAudioBitRate, maxAudioBitRate); 1324 mAudioBitRate = maxAudioBitRate; 1325 } 1326} 1327 1328void StagefrightRecorder::clipAudioSampleRate() { 1329 ALOGV("clipAudioSampleRate: encoder %d", mAudioEncoder); 1330 1331 int minSampleRate = 1332 mEncoderProfiles->getAudioEncoderParamByName( 1333 "enc.aud.hz.min", mAudioEncoder); 1334 if (minSampleRate != -1 && mSampleRate < minSampleRate) { 1335 ALOGW("Intended audio sample rate (%d) is too small" 1336 " and will be set to (%d)", mSampleRate, minSampleRate); 1337 mSampleRate = minSampleRate; 1338 } 1339 1340 int maxSampleRate = 1341 mEncoderProfiles->getAudioEncoderParamByName( 1342 "enc.aud.hz.max", mAudioEncoder); 1343 if (maxSampleRate != -1 && mSampleRate > maxSampleRate) { 1344 ALOGW("Intended audio sample rate (%d) is too large" 1345 " and will be set to (%d)", mSampleRate, maxSampleRate); 1346 mSampleRate = maxSampleRate; 1347 } 1348} 1349 1350void StagefrightRecorder::clipNumberOfAudioChannels() { 1351 ALOGV("clipNumberOfAudioChannels: encoder %d", mAudioEncoder); 1352 1353 int minChannels = 1354 mEncoderProfiles->getAudioEncoderParamByName( 1355 "enc.aud.ch.min", mAudioEncoder); 1356 if (minChannels != -1 && mAudioChannels < minChannels) { 1357 ALOGW("Intended number of audio channels (%d) is too small" 1358 " and will be set to (%d)", mAudioChannels, minChannels); 1359 mAudioChannels = minChannels; 1360 } 1361 1362 int maxChannels = 1363 mEncoderProfiles->getAudioEncoderParamByName( 1364 "enc.aud.ch.max", mAudioEncoder); 1365 if (maxChannels != -1 && mAudioChannels > maxChannels) { 1366 ALOGW("Intended number of audio channels (%d) is too large" 1367 " and will be set to (%d)", mAudioChannels, maxChannels); 1368 mAudioChannels = maxChannels; 1369 } 1370} 1371 1372void StagefrightRecorder::clipVideoFrameHeight() { 1373 ALOGV("clipVideoFrameHeight: encoder %d", mVideoEncoder); 1374 int minFrameHeight = mEncoderProfiles->getVideoEncoderParamByName( 1375 "enc.vid.height.min", mVideoEncoder); 1376 int maxFrameHeight = mEncoderProfiles->getVideoEncoderParamByName( 1377 "enc.vid.height.max", mVideoEncoder); 1378 if (minFrameHeight != -1 && mVideoHeight < minFrameHeight) { 1379 ALOGW("Intended video encoding frame height (%d) is too small" 1380 " and will be set to (%d)", mVideoHeight, minFrameHeight); 1381 mVideoHeight = minFrameHeight; 1382 } else if (maxFrameHeight != -1 && mVideoHeight > maxFrameHeight) { 1383 ALOGW("Intended video encoding frame height (%d) is too large" 1384 " and will be set to (%d)", mVideoHeight, maxFrameHeight); 1385 mVideoHeight = maxFrameHeight; 1386 } 1387} 1388 1389// Set up the appropriate MediaSource depending on the chosen option 1390status_t StagefrightRecorder::setupMediaSource( 1391 sp<MediaSource> *mediaSource) { 1392 if (mVideoSource == VIDEO_SOURCE_DEFAULT 1393 || mVideoSource == VIDEO_SOURCE_CAMERA) { 1394 sp<CameraSource> cameraSource; 1395 status_t err = setupCameraSource(&cameraSource); 1396 if (err != OK) { 1397 return err; 1398 } 1399 *mediaSource = cameraSource; 1400 } else if (mVideoSource == VIDEO_SOURCE_SURFACE) { 1401 *mediaSource = NULL; 1402 } else { 1403 return INVALID_OPERATION; 1404 } 1405 return OK; 1406} 1407 1408status_t StagefrightRecorder::setupCameraSource( 1409 sp<CameraSource> *cameraSource) { 1410 status_t err = OK; 1411 bool encoderSupportsCameraSourceMetaDataMode; 1412 if ((err = checkVideoEncoderCapabilities( 1413 &encoderSupportsCameraSourceMetaDataMode)) != OK) { 1414 return err; 1415 } 1416 Size videoSize; 1417 videoSize.width = mVideoWidth; 1418 videoSize.height = mVideoHeight; 1419 if (mCaptureTimeLapse) { 1420 if (mTimeBetweenTimeLapseFrameCaptureUs < 0) { 1421 ALOGE("Invalid mTimeBetweenTimeLapseFrameCaptureUs value: %lld", 1422 mTimeBetweenTimeLapseFrameCaptureUs); 1423 return BAD_VALUE; 1424 } 1425 1426 mCameraSourceTimeLapse = CameraSourceTimeLapse::CreateFromCamera( 1427 mCamera, mCameraProxy, mCameraId, mClientName, mClientUid, 1428 videoSize, mFrameRate, mPreviewSurface, 1429 mTimeBetweenTimeLapseFrameCaptureUs, 1430 encoderSupportsCameraSourceMetaDataMode); 1431 *cameraSource = mCameraSourceTimeLapse; 1432 } else { 1433 *cameraSource = CameraSource::CreateFromCamera( 1434 mCamera, mCameraProxy, mCameraId, mClientName, mClientUid, 1435 videoSize, mFrameRate, 1436 mPreviewSurface, encoderSupportsCameraSourceMetaDataMode); 1437 } 1438 mCamera.clear(); 1439 mCameraProxy.clear(); 1440 if (*cameraSource == NULL) { 1441 return UNKNOWN_ERROR; 1442 } 1443 1444 if ((*cameraSource)->initCheck() != OK) { 1445 (*cameraSource).clear(); 1446 *cameraSource = NULL; 1447 return NO_INIT; 1448 } 1449 1450 // When frame rate is not set, the actual frame rate will be set to 1451 // the current frame rate being used. 1452 if (mFrameRate == -1) { 1453 int32_t frameRate = 0; 1454 CHECK ((*cameraSource)->getFormat()->findInt32( 1455 kKeyFrameRate, &frameRate)); 1456 ALOGI("Frame rate is not explicitly set. Use the current frame " 1457 "rate (%d fps)", frameRate); 1458 mFrameRate = frameRate; 1459 } 1460 1461 CHECK(mFrameRate != -1); 1462 1463 mIsMetaDataStoredInVideoBuffers = 1464 (*cameraSource)->isMetaDataStoredInVideoBuffers(); 1465 1466 return OK; 1467} 1468 1469status_t StagefrightRecorder::setupVideoEncoder( 1470 sp<MediaSource> cameraSource, 1471 sp<MediaSource> *source) { 1472 source->clear(); 1473 1474 sp<AMessage> format = new AMessage(); 1475 1476 switch (mVideoEncoder) { 1477 case VIDEO_ENCODER_H263: 1478 format->setString("mime", MEDIA_MIMETYPE_VIDEO_H263); 1479 break; 1480 1481 case VIDEO_ENCODER_MPEG_4_SP: 1482 format->setString("mime", MEDIA_MIMETYPE_VIDEO_MPEG4); 1483 break; 1484 1485 case VIDEO_ENCODER_H264: 1486 format->setString("mime", MEDIA_MIMETYPE_VIDEO_AVC); 1487 break; 1488 1489 case VIDEO_ENCODER_VP8: 1490 format->setString("mime", MEDIA_MIMETYPE_VIDEO_VP8); 1491 break; 1492 1493 default: 1494 CHECK(!"Should not be here, unsupported video encoding."); 1495 break; 1496 } 1497 1498 if (cameraSource != NULL) { 1499 sp<MetaData> meta = cameraSource->getFormat(); 1500 1501 int32_t width, height, stride, sliceHeight, colorFormat; 1502 CHECK(meta->findInt32(kKeyWidth, &width)); 1503 CHECK(meta->findInt32(kKeyHeight, &height)); 1504 CHECK(meta->findInt32(kKeyStride, &stride)); 1505 CHECK(meta->findInt32(kKeySliceHeight, &sliceHeight)); 1506 CHECK(meta->findInt32(kKeyColorFormat, &colorFormat)); 1507 1508 format->setInt32("width", width); 1509 format->setInt32("height", height); 1510 format->setInt32("stride", stride); 1511 format->setInt32("slice-height", sliceHeight); 1512 format->setInt32("color-format", colorFormat); 1513 } else { 1514 format->setInt32("width", mVideoWidth); 1515 format->setInt32("height", mVideoHeight); 1516 format->setInt32("stride", mVideoWidth); 1517 format->setInt32("slice-height", mVideoWidth); 1518 format->setInt32("color-format", OMX_COLOR_FormatAndroidOpaque); 1519 1520 // set up time lapse/slow motion for surface source 1521 if (mCaptureTimeLapse) { 1522 if (mTimeBetweenTimeLapseFrameCaptureUs <= 0) { 1523 ALOGE("Invalid mTimeBetweenTimeLapseFrameCaptureUs value: %lld", 1524 mTimeBetweenTimeLapseFrameCaptureUs); 1525 return BAD_VALUE; 1526 } 1527 format->setInt64("time-lapse", 1528 mTimeBetweenTimeLapseFrameCaptureUs); 1529 } 1530 } 1531 1532 format->setInt32("bitrate", mVideoBitRate); 1533 format->setInt32("frame-rate", mFrameRate); 1534 format->setInt32("i-frame-interval", mIFramesIntervalSec); 1535 1536 if (mVideoTimeScale > 0) { 1537 format->setInt32("time-scale", mVideoTimeScale); 1538 } 1539 if (mVideoEncoderProfile != -1) { 1540 format->setInt32("profile", mVideoEncoderProfile); 1541 } 1542 if (mVideoEncoderLevel != -1) { 1543 format->setInt32("level", mVideoEncoderLevel); 1544 } 1545 1546 uint32_t flags = 0; 1547 if (mIsMetaDataStoredInVideoBuffers) { 1548 flags |= MediaCodecSource::FLAG_USE_METADATA_INPUT; 1549 } 1550 1551 if (cameraSource == NULL) { 1552 flags |= MediaCodecSource::FLAG_USE_SURFACE_INPUT; 1553 } 1554 1555 sp<MediaCodecSource> encoder = 1556 MediaCodecSource::Create(mLooper, format, cameraSource, flags); 1557 if (encoder == NULL) { 1558 ALOGE("Failed to create video encoder"); 1559 // When the encoder fails to be created, we need 1560 // release the camera source due to the camera's lock 1561 // and unlock mechanism. 1562 if (cameraSource != NULL) { 1563 cameraSource->stop(); 1564 } 1565 return UNKNOWN_ERROR; 1566 } 1567 1568 if (cameraSource == NULL) { 1569 mGraphicBufferProducer = encoder->getGraphicBufferProducer(); 1570 } 1571 1572 *source = encoder; 1573 1574 return OK; 1575} 1576 1577status_t StagefrightRecorder::setupAudioEncoder(const sp<MediaWriter>& writer) { 1578 status_t status = BAD_VALUE; 1579 if (OK != (status = checkAudioEncoderCapabilities())) { 1580 return status; 1581 } 1582 1583 switch(mAudioEncoder) { 1584 case AUDIO_ENCODER_AMR_NB: 1585 case AUDIO_ENCODER_AMR_WB: 1586 case AUDIO_ENCODER_AAC: 1587 case AUDIO_ENCODER_HE_AAC: 1588 case AUDIO_ENCODER_AAC_ELD: 1589 break; 1590 1591 default: 1592 ALOGE("Unsupported audio encoder: %d", mAudioEncoder); 1593 return UNKNOWN_ERROR; 1594 } 1595 1596 sp<MediaSource> audioEncoder = createAudioSource(); 1597 if (audioEncoder == NULL) { 1598 return UNKNOWN_ERROR; 1599 } 1600 1601 writer->addSource(audioEncoder); 1602 return OK; 1603} 1604 1605status_t StagefrightRecorder::setupMPEG4orWEBMRecording() { 1606 mWriter.clear(); 1607 mTotalBitRate = 0; 1608 1609 status_t err = OK; 1610 sp<MediaWriter> writer; 1611 sp<MPEG4Writer> mp4writer; 1612 if (mOutputFormat == OUTPUT_FORMAT_WEBM) { 1613 writer = new WebmWriter(mOutputFd); 1614 } else { 1615 writer = mp4writer = new MPEG4Writer(mOutputFd); 1616 } 1617 1618 if (mVideoSource < VIDEO_SOURCE_LIST_END) { 1619 setDefaultVideoEncoderIfNecessary(); 1620 1621 sp<MediaSource> mediaSource; 1622 err = setupMediaSource(&mediaSource); 1623 if (err != OK) { 1624 return err; 1625 } 1626 1627 sp<MediaSource> encoder; 1628 err = setupVideoEncoder(mediaSource, &encoder); 1629 if (err != OK) { 1630 return err; 1631 } 1632 1633 writer->addSource(encoder); 1634 mTotalBitRate += mVideoBitRate; 1635 } 1636 1637 if (mOutputFormat != OUTPUT_FORMAT_WEBM) { 1638 // Audio source is added at the end if it exists. 1639 // This help make sure that the "recoding" sound is suppressed for 1640 // camcorder applications in the recorded files. 1641 // TODO Audio source is currently unsupported for webm output; vorbis encoder needed. 1642 if (!mCaptureTimeLapse && (mAudioSource != AUDIO_SOURCE_CNT)) { 1643 err = setupAudioEncoder(writer); 1644 if (err != OK) return err; 1645 mTotalBitRate += mAudioBitRate; 1646 } 1647 1648 if (mCaptureTimeLapse) { 1649 mp4writer->setCaptureRate(mCaptureFps); 1650 } 1651 1652 if (mInterleaveDurationUs > 0) { 1653 mp4writer->setInterleaveDuration(mInterleaveDurationUs); 1654 } 1655 if (mLongitudex10000 > -3600000 && mLatitudex10000 > -3600000) { 1656 mp4writer->setGeoData(mLatitudex10000, mLongitudex10000); 1657 } 1658 } 1659 if (mMaxFileDurationUs != 0) { 1660 writer->setMaxFileDuration(mMaxFileDurationUs); 1661 } 1662 if (mMaxFileSizeBytes != 0) { 1663 writer->setMaxFileSize(mMaxFileSizeBytes); 1664 } 1665 if (mVideoSource == VIDEO_SOURCE_DEFAULT 1666 || mVideoSource == VIDEO_SOURCE_CAMERA) { 1667 mStartTimeOffsetMs = mEncoderProfiles->getStartTimeOffsetMs(mCameraId); 1668 } else if (mVideoSource == VIDEO_SOURCE_SURFACE) { 1669 // surface source doesn't need large initial delay 1670 mStartTimeOffsetMs = 200; 1671 } 1672 if (mStartTimeOffsetMs > 0) { 1673 writer->setStartTimeOffsetMs(mStartTimeOffsetMs); 1674 } 1675 1676 writer->setListener(mListener); 1677 mWriter = writer; 1678 return OK; 1679} 1680 1681void StagefrightRecorder::setupMPEG4orWEBMMetaData(sp<MetaData> *meta) { 1682 int64_t startTimeUs = systemTime() / 1000; 1683 (*meta)->setInt64(kKeyTime, startTimeUs); 1684 (*meta)->setInt32(kKeyFileType, mOutputFormat); 1685 (*meta)->setInt32(kKeyBitRate, mTotalBitRate); 1686 if (mMovieTimeScale > 0) { 1687 (*meta)->setInt32(kKeyTimeScale, mMovieTimeScale); 1688 } 1689 if (mOutputFormat != OUTPUT_FORMAT_WEBM) { 1690 (*meta)->setInt32(kKey64BitFileOffset, mUse64BitFileOffset); 1691 if (mTrackEveryTimeDurationUs > 0) { 1692 (*meta)->setInt64(kKeyTrackTimeStatus, mTrackEveryTimeDurationUs); 1693 } 1694 if (mRotationDegrees != 0) { 1695 (*meta)->setInt32(kKeyRotation, mRotationDegrees); 1696 } 1697 } 1698} 1699 1700status_t StagefrightRecorder::pause() { 1701 ALOGV("pause"); 1702 if (mWriter == NULL) { 1703 return UNKNOWN_ERROR; 1704 } 1705 mWriter->pause(); 1706 1707 if (mStarted) { 1708 mStarted = false; 1709 1710 uint32_t params = 0; 1711 if (mAudioSource != AUDIO_SOURCE_CNT) { 1712 params |= IMediaPlayerService::kBatteryDataTrackAudio; 1713 } 1714 if (mVideoSource != VIDEO_SOURCE_LIST_END) { 1715 params |= IMediaPlayerService::kBatteryDataTrackVideo; 1716 } 1717 1718 addBatteryData(params); 1719 } 1720 1721 1722 return OK; 1723} 1724 1725status_t StagefrightRecorder::stop() { 1726 ALOGV("stop"); 1727 status_t err = OK; 1728 1729 if (mCaptureTimeLapse && mCameraSourceTimeLapse != NULL) { 1730 mCameraSourceTimeLapse->startQuickReadReturns(); 1731 mCameraSourceTimeLapse = NULL; 1732 } 1733 1734 if (mWriter != NULL) { 1735 err = mWriter->stop(); 1736 mWriter.clear(); 1737 } 1738 1739 mGraphicBufferProducer.clear(); 1740 1741 if (mOutputFd >= 0) { 1742 ::close(mOutputFd); 1743 mOutputFd = -1; 1744 } 1745 1746 if (mStarted) { 1747 mStarted = false; 1748 1749 uint32_t params = 0; 1750 if (mAudioSource != AUDIO_SOURCE_CNT) { 1751 params |= IMediaPlayerService::kBatteryDataTrackAudio; 1752 } 1753 if (mVideoSource != VIDEO_SOURCE_LIST_END) { 1754 params |= IMediaPlayerService::kBatteryDataTrackVideo; 1755 } 1756 1757 addBatteryData(params); 1758 } 1759 1760 return err; 1761} 1762 1763status_t StagefrightRecorder::close() { 1764 ALOGV("close"); 1765 stop(); 1766 1767 return OK; 1768} 1769 1770status_t StagefrightRecorder::reset() { 1771 ALOGV("reset"); 1772 stop(); 1773 1774 // No audio or video source by default 1775 mAudioSource = AUDIO_SOURCE_CNT; 1776 mVideoSource = VIDEO_SOURCE_LIST_END; 1777 1778 // Default parameters 1779 mOutputFormat = OUTPUT_FORMAT_THREE_GPP; 1780 mAudioEncoder = AUDIO_ENCODER_AMR_NB; 1781 mVideoEncoder = VIDEO_ENCODER_DEFAULT; 1782 mVideoWidth = 176; 1783 mVideoHeight = 144; 1784 mFrameRate = -1; 1785 mVideoBitRate = 192000; 1786 mSampleRate = 8000; 1787 mAudioChannels = 1; 1788 mAudioBitRate = 12200; 1789 mInterleaveDurationUs = 0; 1790 mIFramesIntervalSec = 1; 1791 mAudioSourceNode = 0; 1792 mUse64BitFileOffset = false; 1793 mMovieTimeScale = -1; 1794 mAudioTimeScale = -1; 1795 mVideoTimeScale = -1; 1796 mCameraId = 0; 1797 mStartTimeOffsetMs = -1; 1798 mVideoEncoderProfile = -1; 1799 mVideoEncoderLevel = -1; 1800 mMaxFileDurationUs = 0; 1801 mMaxFileSizeBytes = 0; 1802 mTrackEveryTimeDurationUs = 0; 1803 mCaptureTimeLapse = false; 1804 mTimeBetweenTimeLapseFrameCaptureUs = -1; 1805 mCameraSourceTimeLapse = NULL; 1806 mIsMetaDataStoredInVideoBuffers = false; 1807 mEncoderProfiles = MediaProfiles::getInstance(); 1808 mRotationDegrees = 0; 1809 mLatitudex10000 = -3600000; 1810 mLongitudex10000 = -3600000; 1811 mTotalBitRate = 0; 1812 1813 mOutputFd = -1; 1814 1815 return OK; 1816} 1817 1818status_t StagefrightRecorder::getMaxAmplitude(int *max) { 1819 ALOGV("getMaxAmplitude"); 1820 1821 if (max == NULL) { 1822 ALOGE("Null pointer argument"); 1823 return BAD_VALUE; 1824 } 1825 1826 if (mAudioSourceNode != 0) { 1827 *max = mAudioSourceNode->getMaxAmplitude(); 1828 } else { 1829 *max = 0; 1830 } 1831 1832 return OK; 1833} 1834 1835status_t StagefrightRecorder::dump( 1836 int fd, const Vector<String16>& args) const { 1837 ALOGV("dump"); 1838 const size_t SIZE = 256; 1839 char buffer[SIZE]; 1840 String8 result; 1841 if (mWriter != 0) { 1842 mWriter->dump(fd, args); 1843 } else { 1844 snprintf(buffer, SIZE, " No file writer\n"); 1845 result.append(buffer); 1846 } 1847 snprintf(buffer, SIZE, " Recorder: %p\n", this); 1848 snprintf(buffer, SIZE, " Output file (fd %d):\n", mOutputFd); 1849 result.append(buffer); 1850 snprintf(buffer, SIZE, " File format: %d\n", mOutputFormat); 1851 result.append(buffer); 1852 snprintf(buffer, SIZE, " Max file size (bytes): %" PRId64 "\n", mMaxFileSizeBytes); 1853 result.append(buffer); 1854 snprintf(buffer, SIZE, " Max file duration (us): %" PRId64 "\n", mMaxFileDurationUs); 1855 result.append(buffer); 1856 snprintf(buffer, SIZE, " File offset length (bits): %d\n", mUse64BitFileOffset? 64: 32); 1857 result.append(buffer); 1858 snprintf(buffer, SIZE, " Interleave duration (us): %d\n", mInterleaveDurationUs); 1859 result.append(buffer); 1860 snprintf(buffer, SIZE, " Progress notification: %" PRId64 " us\n", mTrackEveryTimeDurationUs); 1861 result.append(buffer); 1862 snprintf(buffer, SIZE, " Audio\n"); 1863 result.append(buffer); 1864 snprintf(buffer, SIZE, " Source: %d\n", mAudioSource); 1865 result.append(buffer); 1866 snprintf(buffer, SIZE, " Encoder: %d\n", mAudioEncoder); 1867 result.append(buffer); 1868 snprintf(buffer, SIZE, " Bit rate (bps): %d\n", mAudioBitRate); 1869 result.append(buffer); 1870 snprintf(buffer, SIZE, " Sampling rate (hz): %d\n", mSampleRate); 1871 result.append(buffer); 1872 snprintf(buffer, SIZE, " Number of channels: %d\n", mAudioChannels); 1873 result.append(buffer); 1874 snprintf(buffer, SIZE, " Max amplitude: %d\n", mAudioSourceNode == 0? 0: mAudioSourceNode->getMaxAmplitude()); 1875 result.append(buffer); 1876 snprintf(buffer, SIZE, " Video\n"); 1877 result.append(buffer); 1878 snprintf(buffer, SIZE, " Source: %d\n", mVideoSource); 1879 result.append(buffer); 1880 snprintf(buffer, SIZE, " Camera Id: %d\n", mCameraId); 1881 result.append(buffer); 1882 snprintf(buffer, SIZE, " Start time offset (ms): %d\n", mStartTimeOffsetMs); 1883 result.append(buffer); 1884 snprintf(buffer, SIZE, " Encoder: %d\n", mVideoEncoder); 1885 result.append(buffer); 1886 snprintf(buffer, SIZE, " Encoder profile: %d\n", mVideoEncoderProfile); 1887 result.append(buffer); 1888 snprintf(buffer, SIZE, " Encoder level: %d\n", mVideoEncoderLevel); 1889 result.append(buffer); 1890 snprintf(buffer, SIZE, " I frames interval (s): %d\n", mIFramesIntervalSec); 1891 result.append(buffer); 1892 snprintf(buffer, SIZE, " Frame size (pixels): %dx%d\n", mVideoWidth, mVideoHeight); 1893 result.append(buffer); 1894 snprintf(buffer, SIZE, " Frame rate (fps): %d\n", mFrameRate); 1895 result.append(buffer); 1896 snprintf(buffer, SIZE, " Bit rate (bps): %d\n", mVideoBitRate); 1897 result.append(buffer); 1898 ::write(fd, result.string(), result.size()); 1899 return OK; 1900} 1901} // namespace android 1902