MediaRecorder.java revision e176ee1222931d67aaea0a3df96262728cc31031
1/* 2 * Copyright (C) 2007 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 17package android.media; 18 19import android.annotation.NonNull; 20import android.annotation.SystemApi; 21import android.app.ActivityThread; 22import android.hardware.Camera; 23import android.os.Handler; 24import android.os.Looper; 25import android.os.Message; 26import android.util.Log; 27import android.view.Surface; 28 29import java.io.FileDescriptor; 30import java.io.IOException; 31import java.io.RandomAccessFile; 32import java.lang.ref.WeakReference; 33 34/** 35 * Used to record audio and video. The recording control is based on a 36 * simple state machine (see below). 37 * 38 * <p><img src="{@docRoot}images/mediarecorder_state_diagram.gif" border="0" /> 39 * </p> 40 * 41 * <p>A common case of using MediaRecorder to record audio works as follows: 42 * 43 * <pre>MediaRecorder recorder = new MediaRecorder(); 44 * recorder.setAudioSource(MediaRecorder.AudioSource.MIC); 45 * recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); 46 * recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); 47 * recorder.setOutputFile(PATH_NAME); 48 * recorder.prepare(); 49 * recorder.start(); // Recording is now started 50 * ... 51 * recorder.stop(); 52 * recorder.reset(); // You can reuse the object by going back to setAudioSource() step 53 * recorder.release(); // Now the object cannot be reused 54 * </pre> 55 * 56 * <p>Applications may want to register for informational and error 57 * events in order to be informed of some internal update and possible 58 * runtime errors during recording. Registration for such events is 59 * done by setting the appropriate listeners (via calls 60 * (to {@link #setOnInfoListener(OnInfoListener)}setOnInfoListener and/or 61 * {@link #setOnErrorListener(OnErrorListener)}setOnErrorListener). 62 * In order to receive the respective callback associated with these listeners, 63 * applications are required to create MediaRecorder objects on threads with a 64 * Looper running (the main UI thread by default already has a Looper running). 65 * 66 * <p><strong>Note:</strong> Currently, MediaRecorder does not work on the emulator. 67 * 68 * <div class="special reference"> 69 * <h3>Developer Guides</h3> 70 * <p>For more information about how to use MediaRecorder for recording video, read the 71 * <a href="{@docRoot}guide/topics/media/camera.html#capture-video">Camera</a> developer guide. 72 * For more information about how to use MediaRecorder for recording sound, read the 73 * <a href="{@docRoot}guide/topics/media/audio-capture.html">Audio Capture</a> developer guide.</p> 74 * </div> 75 */ 76public class MediaRecorder 77{ 78 static { 79 System.loadLibrary("media_jni"); 80 native_init(); 81 } 82 private final static String TAG = "MediaRecorder"; 83 84 // The two fields below are accessed by native methods 85 @SuppressWarnings("unused") 86 private long mNativeContext; 87 88 @SuppressWarnings("unused") 89 private Surface mSurface; 90 91 private String mPath; 92 private FileDescriptor mFd; 93 private EventHandler mEventHandler; 94 private OnErrorListener mOnErrorListener; 95 private OnInfoListener mOnInfoListener; 96 97 /** 98 * Default constructor. 99 */ 100 public MediaRecorder() { 101 102 Looper looper; 103 if ((looper = Looper.myLooper()) != null) { 104 mEventHandler = new EventHandler(this, looper); 105 } else if ((looper = Looper.getMainLooper()) != null) { 106 mEventHandler = new EventHandler(this, looper); 107 } else { 108 mEventHandler = null; 109 } 110 111 String packageName = ActivityThread.currentPackageName(); 112 /* Native setup requires a weak reference to our object. 113 * It's easier to create it here than in C++. 114 */ 115 native_setup(new WeakReference<MediaRecorder>(this), packageName, 116 ActivityThread.currentOpPackageName()); 117 } 118 119 /** 120 * Sets a {@link android.hardware.Camera} to use for recording. 121 * 122 * <p>Use this function to switch quickly between preview and capture mode without a teardown of 123 * the camera object. {@link android.hardware.Camera#unlock()} should be called before 124 * this. Must call before {@link #prepare}.</p> 125 * 126 * @param c the Camera to use for recording 127 * @deprecated Use {@link #getSurface} and the {@link android.hardware.camera2} API instead. 128 */ 129 @Deprecated 130 public native void setCamera(Camera c); 131 132 /** 133 * Gets the surface to record from when using SURFACE video source. 134 * 135 * <p> May only be called after {@link #prepare}. Frames rendered to the Surface before 136 * {@link #start} will be discarded.</p> 137 * 138 * @throws IllegalStateException if it is called before {@link #prepare}, after 139 * {@link #stop}, or is called when VideoSource is not set to SURFACE. 140 * @see android.media.MediaRecorder.VideoSource 141 */ 142 public native Surface getSurface(); 143 144 /** 145 * Configures the recorder to use a persistent surface when using SURFACE video source. 146 * <p> May only be called before {@link #prepare}. If called, {@link #getSurface} should 147 * not be used and will throw IllegalStateException. Frames rendered to the Surface 148 * before {@link #start} will be discarded.</p> 149 150 * @param surface a persistent input surface created by 151 * {@link MediaCodec#createPersistentInputSurface} 152 * @throws IllegalStateException if it is called after {@link #prepare} and before 153 * {@link #stop}. 154 * @throws IllegalArgumentException if the surface was not created by 155 * {@link MediaCodec#createPersistentInputSurface}. 156 * @see MediaCodec#createPersistentInputSurface 157 * @see MediaRecorder.VideoSource 158 */ 159 public void setInputSurface(@NonNull Surface surface) { 160 if (!(surface instanceof MediaCodec.PersistentSurface)) { 161 throw new IllegalArgumentException("not a PersistentSurface"); 162 } 163 native_setInputSurface(surface); 164 } 165 166 private native final void native_setInputSurface(@NonNull Surface surface); 167 168 /** 169 * Sets a Surface to show a preview of recorded media (video). Calls this 170 * before prepare() to make sure that the desirable preview display is 171 * set. If {@link #setCamera(Camera)} is used and the surface has been 172 * already set to the camera, application do not need to call this. If 173 * this is called with non-null surface, the preview surface of the camera 174 * will be replaced by the new surface. If this method is called with null 175 * surface or not called at all, media recorder will not change the preview 176 * surface of the camera. 177 * 178 * @param sv the Surface to use for the preview 179 * @see android.hardware.Camera#setPreviewDisplay(android.view.SurfaceHolder) 180 */ 181 public void setPreviewDisplay(Surface sv) { 182 mSurface = sv; 183 } 184 185 /** 186 * Defines the audio source. 187 * An audio source defines both a default physical source of audio signal, and a recording 188 * configuration. These constants are for instance used 189 * in {@link MediaRecorder#setAudioSource(int)} or 190 * {@link AudioRecord.Builder#setAudioSource(int)}. 191 */ 192 public final class AudioSource { 193 194 private AudioSource() {} 195 196 /** @hide */ 197 public final static int AUDIO_SOURCE_INVALID = -1; 198 199 /* Do not change these values without updating their counterparts 200 * in system/media/audio/include/system/audio.h! 201 */ 202 203 /** Default audio source **/ 204 public static final int DEFAULT = 0; 205 206 /** Microphone audio source */ 207 public static final int MIC = 1; 208 209 /** Voice call uplink (Tx) audio source. 210 * <p> 211 * Capturing from <code>VOICE_UPLINK</code> source requires the 212 * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission. 213 * This permission is reserved for use by system components and is not available to 214 * third-party applications. 215 * </p> 216 */ 217 public static final int VOICE_UPLINK = 2; 218 219 /** Voice call downlink (Rx) audio source. 220 * <p> 221 * Capturing from <code>VOICE_DOWNLINK</code> source requires the 222 * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission. 223 * This permission is reserved for use by system components and is not available to 224 * third-party applications. 225 * </p> 226 */ 227 public static final int VOICE_DOWNLINK = 3; 228 229 /** Voice call uplink + downlink audio source 230 * <p> 231 * Capturing from <code>VOICE_CALL</code> source requires the 232 * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission. 233 * This permission is reserved for use by system components and is not available to 234 * third-party applications. 235 * </p> 236 */ 237 public static final int VOICE_CALL = 4; 238 239 /** Microphone audio source tuned for video recording, with the same orientation 240 * as the camera if available. */ 241 public static final int CAMCORDER = 5; 242 243 /** Microphone audio source tuned for voice recognition. */ 244 public static final int VOICE_RECOGNITION = 6; 245 246 /** Microphone audio source tuned for voice communications such as VoIP. It 247 * will for instance take advantage of echo cancellation or automatic gain control 248 * if available. 249 */ 250 public static final int VOICE_COMMUNICATION = 7; 251 252 /** 253 * Audio source for a submix of audio streams to be presented remotely. 254 * <p> 255 * An application can use this audio source to capture a mix of audio streams 256 * that should be transmitted to a remote receiver such as a Wifi display. 257 * While recording is active, these audio streams are redirected to the remote 258 * submix instead of being played on the device speaker or headset. 259 * </p><p> 260 * Certain streams are excluded from the remote submix, including 261 * {@link AudioManager#STREAM_RING}, {@link AudioManager#STREAM_ALARM}, 262 * and {@link AudioManager#STREAM_NOTIFICATION}. These streams will continue 263 * to be presented locally as usual. 264 * </p><p> 265 * Capturing the remote submix audio requires the 266 * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission. 267 * This permission is reserved for use by system components and is not available to 268 * third-party applications. 269 * </p> 270 */ 271 public static final int REMOTE_SUBMIX = 8; 272 273 /** Microphone audio source tuned for unprocessed (raw) sound if available, behaves like 274 * {@link #DEFAULT} otherwise. */ 275 public static final int UNPROCESSED = 9; 276 277 /** 278 * Audio source for capturing broadcast radio tuner output. 279 * @hide 280 */ 281 @SystemApi 282 public static final int RADIO_TUNER = 1998; 283 284 /** 285 * Audio source for preemptible, low-priority software hotword detection 286 * It presents the same gain and pre processing tuning as {@link #VOICE_RECOGNITION}. 287 * <p> 288 * An application should use this audio source when it wishes to do 289 * always-on software hotword detection, while gracefully giving in to any other application 290 * that might want to read from the microphone. 291 * </p> 292 * This is a hidden audio source. 293 * @hide 294 */ 295 @SystemApi 296 public static final int HOTWORD = 1999; 297 } 298 299 // TODO make AudioSource static (API change) and move this method inside the AudioSource class 300 /** 301 * @hide 302 * @param source An audio source to test 303 * @return true if the source is only visible to system components 304 */ 305 public static boolean isSystemOnlyAudioSource(int source) { 306 switch(source) { 307 case AudioSource.DEFAULT: 308 case AudioSource.MIC: 309 case AudioSource.VOICE_UPLINK: 310 case AudioSource.VOICE_DOWNLINK: 311 case AudioSource.VOICE_CALL: 312 case AudioSource.CAMCORDER: 313 case AudioSource.VOICE_RECOGNITION: 314 case AudioSource.VOICE_COMMUNICATION: 315 //case REMOTE_SUBMIX: considered "system" as it requires system permissions 316 case AudioSource.UNPROCESSED: 317 return false; 318 default: 319 return true; 320 } 321 } 322 323 /** 324 * Defines the video source. These constants are used with 325 * {@link MediaRecorder#setVideoSource(int)}. 326 */ 327 public final class VideoSource { 328 /* Do not change these values without updating their counterparts 329 * in include/media/mediarecorder.h! 330 */ 331 private VideoSource() {} 332 public static final int DEFAULT = 0; 333 /** Camera video source 334 * <p> 335 * Using the {@link android.hardware.Camera} API as video source. 336 * </p> 337 */ 338 public static final int CAMERA = 1; 339 /** Surface video source 340 * <p> 341 * Using a Surface as video source. 342 * </p><p> 343 * This flag must be used when recording from an 344 * {@link android.hardware.camera2} API source. 345 * </p><p> 346 * When using this video source type, use {@link MediaRecorder#getSurface()} 347 * to retrieve the surface created by MediaRecorder. 348 */ 349 public static final int SURFACE = 2; 350 } 351 352 /** 353 * Defines the output format. These constants are used with 354 * {@link MediaRecorder#setOutputFormat(int)}. 355 */ 356 public final class OutputFormat { 357 /* Do not change these values without updating their counterparts 358 * in include/media/mediarecorder.h! 359 */ 360 private OutputFormat() {} 361 public static final int DEFAULT = 0; 362 /** 3GPP media file format*/ 363 public static final int THREE_GPP = 1; 364 /** MPEG4 media file format*/ 365 public static final int MPEG_4 = 2; 366 367 /** The following formats are audio only .aac or .amr formats */ 368 369 /** 370 * AMR NB file format 371 * @deprecated Deprecated in favor of MediaRecorder.OutputFormat.AMR_NB 372 */ 373 public static final int RAW_AMR = 3; 374 375 /** AMR NB file format */ 376 public static final int AMR_NB = 3; 377 378 /** AMR WB file format */ 379 public static final int AMR_WB = 4; 380 381 /** @hide AAC ADIF file format */ 382 public static final int AAC_ADIF = 5; 383 384 /** AAC ADTS file format */ 385 public static final int AAC_ADTS = 6; 386 387 /** @hide Stream over a socket, limited to a single stream */ 388 public static final int OUTPUT_FORMAT_RTP_AVP = 7; 389 390 /** H.264/AAC data encapsulated in MPEG2/TS */ 391 public static final int MPEG_2_TS = 8; 392 393 /** VP8/VORBIS data in a WEBM container */ 394 public static final int WEBM = 9; 395 }; 396 397 /** 398 * Defines the audio encoding. These constants are used with 399 * {@link MediaRecorder#setAudioEncoder(int)}. 400 */ 401 public final class AudioEncoder { 402 /* Do not change these values without updating their counterparts 403 * in include/media/mediarecorder.h! 404 */ 405 private AudioEncoder() {} 406 public static final int DEFAULT = 0; 407 /** AMR (Narrowband) audio codec */ 408 public static final int AMR_NB = 1; 409 /** AMR (Wideband) audio codec */ 410 public static final int AMR_WB = 2; 411 /** AAC Low Complexity (AAC-LC) audio codec */ 412 public static final int AAC = 3; 413 /** High Efficiency AAC (HE-AAC) audio codec */ 414 public static final int HE_AAC = 4; 415 /** Enhanced Low Delay AAC (AAC-ELD) audio codec */ 416 public static final int AAC_ELD = 5; 417 /** Ogg Vorbis audio codec */ 418 public static final int VORBIS = 6; 419 } 420 421 /** 422 * Defines the video encoding. These constants are used with 423 * {@link MediaRecorder#setVideoEncoder(int)}. 424 */ 425 public final class VideoEncoder { 426 /* Do not change these values without updating their counterparts 427 * in include/media/mediarecorder.h! 428 */ 429 private VideoEncoder() {} 430 public static final int DEFAULT = 0; 431 public static final int H263 = 1; 432 public static final int H264 = 2; 433 public static final int MPEG_4_SP = 3; 434 public static final int VP8 = 4; 435 public static final int HEVC = 5; 436 } 437 438 /** 439 * Sets the audio source to be used for recording. If this method is not 440 * called, the output file will not contain an audio track. The source needs 441 * to be specified before setting recording-parameters or encoders. Call 442 * this only before setOutputFormat(). 443 * 444 * @param audio_source the audio source to use 445 * @throws IllegalStateException if it is called after setOutputFormat() 446 * @see android.media.MediaRecorder.AudioSource 447 */ 448 public native void setAudioSource(int audio_source) 449 throws IllegalStateException; 450 451 /** 452 * Gets the maximum value for audio sources. 453 * @see android.media.MediaRecorder.AudioSource 454 */ 455 public static final int getAudioSourceMax() { 456 return AudioSource.UNPROCESSED; 457 } 458 459 /** 460 * Sets the video source to be used for recording. If this method is not 461 * called, the output file will not contain an video track. The source needs 462 * to be specified before setting recording-parameters or encoders. Call 463 * this only before setOutputFormat(). 464 * 465 * @param video_source the video source to use 466 * @throws IllegalStateException if it is called after setOutputFormat() 467 * @see android.media.MediaRecorder.VideoSource 468 */ 469 public native void setVideoSource(int video_source) 470 throws IllegalStateException; 471 472 /** 473 * Uses the settings from a CamcorderProfile object for recording. This method should 474 * be called after the video AND audio sources are set, and before setOutputFile(). 475 * If a time lapse CamcorderProfile is used, audio related source or recording 476 * parameters are ignored. 477 * 478 * @param profile the CamcorderProfile to use 479 * @see android.media.CamcorderProfile 480 */ 481 public void setProfile(CamcorderProfile profile) { 482 setOutputFormat(profile.fileFormat); 483 setVideoFrameRate(profile.videoFrameRate); 484 setVideoSize(profile.videoFrameWidth, profile.videoFrameHeight); 485 setVideoEncodingBitRate(profile.videoBitRate); 486 setVideoEncoder(profile.videoCodec); 487 if (profile.quality >= CamcorderProfile.QUALITY_TIME_LAPSE_LOW && 488 profile.quality <= CamcorderProfile.QUALITY_TIME_LAPSE_QVGA) { 489 // Nothing needs to be done. Call to setCaptureRate() enables 490 // time lapse video recording. 491 } else { 492 setAudioEncodingBitRate(profile.audioBitRate); 493 setAudioChannels(profile.audioChannels); 494 setAudioSamplingRate(profile.audioSampleRate); 495 setAudioEncoder(profile.audioCodec); 496 } 497 } 498 499 /** 500 * Set video frame capture rate. This can be used to set a different video frame capture 501 * rate than the recorded video's playback rate. This method also sets the recording mode 502 * to time lapse. In time lapse video recording, only video is recorded. Audio related 503 * parameters are ignored when a time lapse recording session starts, if an application 504 * sets them. 505 * 506 * @param fps Rate at which frames should be captured in frames per second. 507 * The fps can go as low as desired. However the fastest fps will be limited by the hardware. 508 * For resolutions that can be captured by the video camera, the fastest fps can be computed using 509 * {@link android.hardware.Camera.Parameters#getPreviewFpsRange(int[])}. For higher 510 * resolutions the fastest fps may be more restrictive. 511 * Note that the recorder cannot guarantee that frames will be captured at the 512 * given rate due to camera/encoder limitations. However it tries to be as close as 513 * possible. 514 */ 515 public void setCaptureRate(double fps) { 516 // Make sure that time lapse is enabled when this method is called. 517 setParameter("time-lapse-enable=1"); 518 setParameter("time-lapse-fps=" + fps); 519 } 520 521 /** 522 * Sets the orientation hint for output video playback. 523 * This method should be called before prepare(). This method will not 524 * trigger the source video frame to rotate during video recording, but to 525 * add a composition matrix containing the rotation angle in the output 526 * video if the output format is OutputFormat.THREE_GPP or 527 * OutputFormat.MPEG_4 so that a video player can choose the proper 528 * orientation for playback. Note that some video players may choose 529 * to ignore the compostion matrix in a video during playback. 530 * 531 * @param degrees the angle to be rotated clockwise in degrees. 532 * The supported angles are 0, 90, 180, and 270 degrees. 533 * @throws IllegalArgumentException if the angle is not supported. 534 * 535 */ 536 public void setOrientationHint(int degrees) { 537 if (degrees != 0 && 538 degrees != 90 && 539 degrees != 180 && 540 degrees != 270) { 541 throw new IllegalArgumentException("Unsupported angle: " + degrees); 542 } 543 setParameter("video-param-rotation-angle-degrees=" + degrees); 544 } 545 546 /** 547 * Set and store the geodata (latitude and longitude) in the output file. 548 * This method should be called before prepare(). The geodata is 549 * stored in udta box if the output format is OutputFormat.THREE_GPP 550 * or OutputFormat.MPEG_4, and is ignored for other output formats. 551 * The geodata is stored according to ISO-6709 standard. 552 * 553 * @param latitude latitude in degrees. Its value must be in the 554 * range [-90, 90]. 555 * @param longitude longitude in degrees. Its value must be in the 556 * range [-180, 180]. 557 * 558 * @throws IllegalArgumentException if the given latitude or 559 * longitude is out of range. 560 * 561 */ 562 public void setLocation(float latitude, float longitude) { 563 int latitudex10000 = (int) (latitude * 10000 + 0.5); 564 int longitudex10000 = (int) (longitude * 10000 + 0.5); 565 566 if (latitudex10000 > 900000 || latitudex10000 < -900000) { 567 String msg = "Latitude: " + latitude + " out of range."; 568 throw new IllegalArgumentException(msg); 569 } 570 if (longitudex10000 > 1800000 || longitudex10000 < -1800000) { 571 String msg = "Longitude: " + longitude + " out of range"; 572 throw new IllegalArgumentException(msg); 573 } 574 575 setParameter("param-geotag-latitude=" + latitudex10000); 576 setParameter("param-geotag-longitude=" + longitudex10000); 577 } 578 579 /** 580 * Sets the format of the output file produced during recording. Call this 581 * after setAudioSource()/setVideoSource() but before prepare(). 582 * 583 * <p>It is recommended to always use 3GP format when using the H.263 584 * video encoder and AMR audio encoder. Using an MPEG-4 container format 585 * may confuse some desktop players.</p> 586 * 587 * @param output_format the output format to use. The output format 588 * needs to be specified before setting recording-parameters or encoders. 589 * @throws IllegalStateException if it is called after prepare() or before 590 * setAudioSource()/setVideoSource(). 591 * @see android.media.MediaRecorder.OutputFormat 592 */ 593 public native void setOutputFormat(int output_format) 594 throws IllegalStateException; 595 596 /** 597 * Sets the width and height of the video to be captured. Must be called 598 * after setVideoSource(). Call this after setOutFormat() but before 599 * prepare(). 600 * 601 * @param width the width of the video to be captured 602 * @param height the height of the video to be captured 603 * @throws IllegalStateException if it is called after 604 * prepare() or before setOutputFormat() 605 */ 606 public native void setVideoSize(int width, int height) 607 throws IllegalStateException; 608 609 /** 610 * Sets the frame rate of the video to be captured. Must be called 611 * after setVideoSource(). Call this after setOutFormat() but before 612 * prepare(). 613 * 614 * @param rate the number of frames per second of video to capture 615 * @throws IllegalStateException if it is called after 616 * prepare() or before setOutputFormat(). 617 * 618 * NOTE: On some devices that have auto-frame rate, this sets the 619 * maximum frame rate, not a constant frame rate. Actual frame rate 620 * will vary according to lighting conditions. 621 */ 622 public native void setVideoFrameRate(int rate) throws IllegalStateException; 623 624 /** 625 * Sets the maximum duration (in ms) of the recording session. 626 * Call this after setOutFormat() but before prepare(). 627 * After recording reaches the specified duration, a notification 628 * will be sent to the {@link android.media.MediaRecorder.OnInfoListener} 629 * with a "what" code of {@link #MEDIA_RECORDER_INFO_MAX_DURATION_REACHED} 630 * and recording will be stopped. Stopping happens asynchronously, there 631 * is no guarantee that the recorder will have stopped by the time the 632 * listener is notified. 633 * 634 * @param max_duration_ms the maximum duration in ms (if zero or negative, disables the duration limit) 635 * 636 */ 637 public native void setMaxDuration(int max_duration_ms) throws IllegalArgumentException; 638 639 /** 640 * Sets the maximum filesize (in bytes) of the recording session. 641 * Call this after setOutFormat() but before prepare(). 642 * After recording reaches the specified filesize, a notification 643 * will be sent to the {@link android.media.MediaRecorder.OnInfoListener} 644 * with a "what" code of {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED} 645 * and recording will be stopped. Stopping happens asynchronously, there 646 * is no guarantee that the recorder will have stopped by the time the 647 * listener is notified. 648 * 649 * @param max_filesize_bytes the maximum filesize in bytes (if zero or negative, disables the limit) 650 * 651 */ 652 public native void setMaxFileSize(long max_filesize_bytes) throws IllegalArgumentException; 653 654 /** 655 * Sets the audio encoder to be used for recording. If this method is not 656 * called, the output file will not contain an audio track. Call this after 657 * setOutputFormat() but before prepare(). 658 * 659 * @param audio_encoder the audio encoder to use. 660 * @throws IllegalStateException if it is called before 661 * setOutputFormat() or after prepare(). 662 * @see android.media.MediaRecorder.AudioEncoder 663 */ 664 public native void setAudioEncoder(int audio_encoder) 665 throws IllegalStateException; 666 667 /** 668 * Sets the video encoder to be used for recording. If this method is not 669 * called, the output file will not contain an video track. Call this after 670 * setOutputFormat() and before prepare(). 671 * 672 * @param video_encoder the video encoder to use. 673 * @throws IllegalStateException if it is called before 674 * setOutputFormat() or after prepare() 675 * @see android.media.MediaRecorder.VideoEncoder 676 */ 677 public native void setVideoEncoder(int video_encoder) 678 throws IllegalStateException; 679 680 /** 681 * Sets the audio sampling rate for recording. Call this method before prepare(). 682 * Prepare() may perform additional checks on the parameter to make sure whether 683 * the specified audio sampling rate is applicable. The sampling rate really depends 684 * on the format for the audio recording, as well as the capabilities of the platform. 685 * For instance, the sampling rate supported by AAC audio coding standard ranges 686 * from 8 to 96 kHz, the sampling rate supported by AMRNB is 8kHz, and the sampling 687 * rate supported by AMRWB is 16kHz. Please consult with the related audio coding 688 * standard for the supported audio sampling rate. 689 * 690 * @param samplingRate the sampling rate for audio in samples per second. 691 */ 692 public void setAudioSamplingRate(int samplingRate) { 693 if (samplingRate <= 0) { 694 throw new IllegalArgumentException("Audio sampling rate is not positive"); 695 } 696 setParameter("audio-param-sampling-rate=" + samplingRate); 697 } 698 699 /** 700 * Sets the number of audio channels for recording. Call this method before prepare(). 701 * Prepare() may perform additional checks on the parameter to make sure whether the 702 * specified number of audio channels are applicable. 703 * 704 * @param numChannels the number of audio channels. Usually it is either 1 (mono) or 2 705 * (stereo). 706 */ 707 public void setAudioChannels(int numChannels) { 708 if (numChannels <= 0) { 709 throw new IllegalArgumentException("Number of channels is not positive"); 710 } 711 setParameter("audio-param-number-of-channels=" + numChannels); 712 } 713 714 /** 715 * Sets the audio encoding bit rate for recording. Call this method before prepare(). 716 * Prepare() may perform additional checks on the parameter to make sure whether the 717 * specified bit rate is applicable, and sometimes the passed bitRate will be clipped 718 * internally to ensure the audio recording can proceed smoothly based on the 719 * capabilities of the platform. 720 * 721 * @param bitRate the audio encoding bit rate in bits per second. 722 */ 723 public void setAudioEncodingBitRate(int bitRate) { 724 if (bitRate <= 0) { 725 throw new IllegalArgumentException("Audio encoding bit rate is not positive"); 726 } 727 setParameter("audio-param-encoding-bitrate=" + bitRate); 728 } 729 730 /** 731 * Sets the video encoding bit rate for recording. Call this method before prepare(). 732 * Prepare() may perform additional checks on the parameter to make sure whether the 733 * specified bit rate is applicable, and sometimes the passed bitRate will be 734 * clipped internally to ensure the video recording can proceed smoothly based on 735 * the capabilities of the platform. 736 * 737 * @param bitRate the video encoding bit rate in bits per second. 738 */ 739 public void setVideoEncodingBitRate(int bitRate) { 740 if (bitRate <= 0) { 741 throw new IllegalArgumentException("Video encoding bit rate is not positive"); 742 } 743 setParameter("video-param-encoding-bitrate=" + bitRate); 744 } 745 746 /** 747 * Sets the video encoding profile for recording. Call this method before prepare(). 748 * Prepare() may perform additional checks on the parameter to make sure whether the 749 * specified profile and level are applicable, and sometimes the passed profile or 750 * level will be discarded due to codec capablity or to ensure the video recording 751 * can proceed smoothly based on the capabilities of the platform. 752 * @hide 753 * @param profile declared in {@link MediaCodecInfo.CodecProfileLevel}. 754 * @param level declared in {@link MediaCodecInfo.CodecProfileLevel}. 755 */ 756 public void setVideoEncodingProfileLevel(int profile, int level) { 757 if (profile <= 0) { 758 throw new IllegalArgumentException("Video encoding profile is not positive"); 759 } 760 if (level <= 0) { 761 throw new IllegalArgumentException("Video encoding level is not positive"); 762 } 763 setParameter("video-param-encoder-profile=" + profile); 764 setParameter("video-param-encoder-level=" + level); 765 } 766 767 /** 768 * Currently not implemented. It does nothing. 769 * @deprecated Time lapse mode video recording using camera still image capture 770 * is not desirable, and will not be supported. 771 * @hide 772 */ 773 public void setAuxiliaryOutputFile(FileDescriptor fd) 774 { 775 Log.w(TAG, "setAuxiliaryOutputFile(FileDescriptor) is no longer supported."); 776 } 777 778 /** 779 * Currently not implemented. It does nothing. 780 * @deprecated Time lapse mode video recording using camera still image capture 781 * is not desirable, and will not be supported. 782 * @hide 783 */ 784 public void setAuxiliaryOutputFile(String path) 785 { 786 Log.w(TAG, "setAuxiliaryOutputFile(String) is no longer supported."); 787 } 788 789 /** 790 * Pass in the file descriptor of the file to be written. Call this after 791 * setOutputFormat() but before prepare(). 792 * 793 * @param fd an open file descriptor to be written into. 794 * @throws IllegalStateException if it is called before 795 * setOutputFormat() or after prepare() 796 */ 797 public void setOutputFile(FileDescriptor fd) throws IllegalStateException 798 { 799 mPath = null; 800 mFd = fd; 801 } 802 803 /** 804 * Sets the next output file descriptor to be used when the maximum filesize is reached 805 * on the prior output {@link #setOutputFile} or {@link #setNextOutputFile}). File descriptor 806 * must be seekable and in read-write mode. After setting the next output file, application 807 * should not use the file referenced by this file descriptor until {@link #stop}. Application 808 * must call this after receiving on the {@link android.media.MediaRecorder.OnInfoListener} a 809 * "what" code of {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING} and before receiving 810 * a "what" code of {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED}. The file is not used 811 * until switching to that output. Application will receive 812 * {@link #MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED} when the next output file is used. 813 * Application will not be able to set a new output file if the previous one has not been used. 814 * Application is responsible for cleaning up unused files after {@link #stop} is called. 815 * 816 * @param fd an open file descriptor to be written into. 817 * @throws IllegalStateException if it is called before prepare(). 818 * @throws IOException if setNextOutputFile fails otherwise. 819 */ 820 public void setNextOutputFile(FileDescriptor fd) throws IllegalStateException, IOException 821 { 822 _setNextOutputFile(fd); 823 } 824 825 /** 826 * Sets the path of the output file to be produced. Call this after 827 * setOutputFormat() but before prepare(). 828 * 829 * @param path The pathname to use. 830 * @throws IllegalStateException if it is called before 831 * setOutputFormat() or after prepare() 832 */ 833 public void setOutputFile(String path) throws IllegalStateException 834 { 835 mFd = null; 836 mPath = path; 837 } 838 839 /** 840 * Sets the next output file path to be used when the maximum filesize is reached 841 * on the prior output {@link #setOutputFile} or {@link #setNextOutputFile}). File should 842 * be seekable. After setting the next output file, application should not use the file 843 * referenced by this file descriptor until {@link #stop}. Application must call this 844 * after receiving on the {@link android.media.MediaRecorder.OnInfoListener} a "what" code of 845 * {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING} and before receiving a "what" code of 846 * {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED}. The file is not used until switching to 847 * that output. Application will receive {@link #MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED} 848 * when the next output file is used. Application will not be able to set a new output file if 849 * the previous one has not been used. Application is responsible for cleaning up unused files 850 * after {@link #stop} is called. 851 * 852 * @param path The pathname to use. 853 * @throws IllegalStateException if it is called before prepare(). 854 * @throws IOException if setNextOutputFile fails otherwise. 855 */ 856 public void setNextOutputFile(String path) throws IllegalStateException, IOException 857 { 858 if (path != null) { 859 RandomAccessFile file = new RandomAccessFile(path, "rws"); 860 try { 861 _setNextOutputFile(file.getFD()); 862 } finally { 863 file.close(); 864 } 865 } 866 } 867 868 // native implementation 869 private native void _setOutputFile(FileDescriptor fd) throws IllegalStateException, IOException; 870 private native void _setNextOutputFile(FileDescriptor fd) throws IllegalStateException, IOException; 871 private native void _prepare() throws IllegalStateException, IOException; 872 873 /** 874 * Prepares the recorder to begin capturing and encoding data. This method 875 * must be called after setting up the desired audio and video sources, 876 * encoders, file format, etc., but before start(). 877 * 878 * @throws IllegalStateException if it is called after 879 * start() or before setOutputFormat(). 880 * @throws IOException if prepare fails otherwise. 881 */ 882 public void prepare() throws IllegalStateException, IOException 883 { 884 if (mPath != null) { 885 RandomAccessFile file = new RandomAccessFile(mPath, "rws"); 886 try { 887 _setOutputFile(file.getFD()); 888 } finally { 889 file.close(); 890 } 891 } else if (mFd != null) { 892 _setOutputFile(mFd); 893 } else { 894 throw new IOException("No valid output file"); 895 } 896 897 _prepare(); 898 } 899 900 /** 901 * Begins capturing and encoding data to the file specified with 902 * setOutputFile(). Call this after prepare(). 903 * 904 * <p>Since API level 13, if applications set a camera via 905 * {@link #setCamera(Camera)}, the apps can use the camera after this method 906 * call. The apps do not need to lock the camera again. However, if this 907 * method fails, the apps should still lock the camera back. The apps should 908 * not start another recording session during recording. 909 * 910 * @throws IllegalStateException if it is called before 911 * prepare(). 912 */ 913 public native void start() throws IllegalStateException; 914 915 /** 916 * Stops recording. Call this after start(). Once recording is stopped, 917 * you will have to configure it again as if it has just been constructed. 918 * Note that a RuntimeException is intentionally thrown to the 919 * application, if no valid audio/video data has been received when stop() 920 * is called. This happens if stop() is called immediately after 921 * start(). The failure lets the application take action accordingly to 922 * clean up the output file (delete the output file, for instance), since 923 * the output file is not properly constructed when this happens. 924 * 925 * @throws IllegalStateException if it is called before start() 926 */ 927 public native void stop() throws IllegalStateException; 928 929 /** 930 * Pauses recording. Call this after start(). You may resume recording 931 * with resume() without reconfiguration, as opposed to stop(). It does 932 * nothing if the recording is already paused. 933 * 934 * When the recording is paused and resumed, the resulting output would 935 * be as if nothing happend during paused period, immediately switching 936 * to the resumed scene. 937 * 938 * @throws IllegalStateException if it is called before start() or after 939 * stop() 940 */ 941 public native void pause() throws IllegalStateException; 942 943 /** 944 * Resumes recording. Call this after start(). It does nothing if the 945 * recording is not paused. 946 * 947 * @throws IllegalStateException if it is called before start() or after 948 * stop() 949 * @see android.media.MediaRecorder#pause 950 */ 951 public native void resume() throws IllegalStateException; 952 953 /** 954 * Restarts the MediaRecorder to its idle state. After calling 955 * this method, you will have to configure it again as if it had just been 956 * constructed. 957 */ 958 public void reset() { 959 native_reset(); 960 961 // make sure none of the listeners get called anymore 962 mEventHandler.removeCallbacksAndMessages(null); 963 } 964 965 private native void native_reset(); 966 967 /** 968 * Returns the maximum absolute amplitude that was sampled since the last 969 * call to this method. Call this only after the setAudioSource(). 970 * 971 * @return the maximum absolute amplitude measured since the last call, or 972 * 0 when called for the first time 973 * @throws IllegalStateException if it is called before 974 * the audio source has been set. 975 */ 976 public native int getMaxAmplitude() throws IllegalStateException; 977 978 /* Do not change this value without updating its counterpart 979 * in include/media/mediarecorder.h or mediaplayer.h! 980 */ 981 /** Unspecified media recorder error. 982 * @see android.media.MediaRecorder.OnErrorListener 983 */ 984 public static final int MEDIA_RECORDER_ERROR_UNKNOWN = 1; 985 /** Media server died. In this case, the application must release the 986 * MediaRecorder object and instantiate a new one. 987 * @see android.media.MediaRecorder.OnErrorListener 988 */ 989 public static final int MEDIA_ERROR_SERVER_DIED = 100; 990 991 /** 992 * Interface definition for a callback to be invoked when an error 993 * occurs while recording. 994 */ 995 public interface OnErrorListener 996 { 997 /** 998 * Called when an error occurs while recording. 999 * 1000 * @param mr the MediaRecorder that encountered the error 1001 * @param what the type of error that has occurred: 1002 * <ul> 1003 * <li>{@link #MEDIA_RECORDER_ERROR_UNKNOWN} 1004 * <li>{@link #MEDIA_ERROR_SERVER_DIED} 1005 * </ul> 1006 * @param extra an extra code, specific to the error type 1007 */ 1008 void onError(MediaRecorder mr, int what, int extra); 1009 } 1010 1011 /** 1012 * Register a callback to be invoked when an error occurs while 1013 * recording. 1014 * 1015 * @param l the callback that will be run 1016 */ 1017 public void setOnErrorListener(OnErrorListener l) 1018 { 1019 mOnErrorListener = l; 1020 } 1021 1022 /* Do not change these values without updating their counterparts 1023 * in include/media/mediarecorder.h! 1024 */ 1025 /** Unspecified media recorder info. 1026 * @see android.media.MediaRecorder.OnInfoListener 1027 */ 1028 public static final int MEDIA_RECORDER_INFO_UNKNOWN = 1; 1029 /** A maximum duration had been setup and has now been reached. 1030 * @see android.media.MediaRecorder.OnInfoListener 1031 */ 1032 public static final int MEDIA_RECORDER_INFO_MAX_DURATION_REACHED = 800; 1033 /** A maximum filesize had been setup and has now been reached. 1034 * Note: This event will not be sent if application already set 1035 * next output file through {@link #setNextOutputFile}. 1036 * @see android.media.MediaRecorder.OnInfoListener 1037 */ 1038 public static final int MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED = 801; 1039 /** A maximum filesize had been setup and current recorded file size 1040 * has reached 90% of the limit. This is sent once per file upon 1041 * reaching/passing the 90% limit. To continue the recording, applicaiton 1042 * should use {@link #setNextOutputFile} to set the next output file. 1043 * Otherwise, recording will stop when reaching maximum file size. 1044 * @see android.media.MediaRecorder.OnInfoListener 1045 */ 1046 public static final int MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING = 802; 1047 /** A maximum filesize had been reached and MediaRecorder has switched 1048 * output to a new file set by application {@link #setNextOutputFile}. 1049 * For best practice, application should use this event to keep track 1050 * of whether the file previously set has been used or not. 1051 * @see android.media.MediaRecorder.OnInfoListener 1052 */ 1053 public static final int MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED = 803; 1054 1055 /** informational events for individual tracks, for testing purpose. 1056 * The track informational event usually contains two parts in the ext1 1057 * arg of the onInfo() callback: bit 31-28 contains the track id; and 1058 * the rest of the 28 bits contains the informational event defined here. 1059 * For example, ext1 = (1 << 28 | MEDIA_RECORDER_TRACK_INFO_TYPE) if the 1060 * track id is 1 for informational event MEDIA_RECORDER_TRACK_INFO_TYPE; 1061 * while ext1 = (0 << 28 | MEDIA_RECORDER_TRACK_INFO_TYPE) if the track 1062 * id is 0 for informational event MEDIA_RECORDER_TRACK_INFO_TYPE. The 1063 * application should extract the track id and the type of informational 1064 * event from ext1, accordingly. 1065 * 1066 * FIXME: 1067 * Please update the comment for onInfo also when these 1068 * events are unhidden so that application knows how to extract the track 1069 * id and the informational event type from onInfo callback. 1070 * 1071 * {@hide} 1072 */ 1073 public static final int MEDIA_RECORDER_TRACK_INFO_LIST_START = 1000; 1074 /** Signal the completion of the track for the recording session. 1075 * {@hide} 1076 */ 1077 public static final int MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS = 1000; 1078 /** Indicate the recording progress in time (ms) during recording. 1079 * {@hide} 1080 */ 1081 public static final int MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME = 1001; 1082 /** Indicate the track type: 0 for Audio and 1 for Video. 1083 * {@hide} 1084 */ 1085 public static final int MEDIA_RECORDER_TRACK_INFO_TYPE = 1002; 1086 /** Provide the track duration information. 1087 * {@hide} 1088 */ 1089 public static final int MEDIA_RECORDER_TRACK_INFO_DURATION_MS = 1003; 1090 /** Provide the max chunk duration in time (ms) for the given track. 1091 * {@hide} 1092 */ 1093 public static final int MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS = 1004; 1094 /** Provide the total number of recordd frames. 1095 * {@hide} 1096 */ 1097 public static final int MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES = 1005; 1098 /** Provide the max spacing between neighboring chunks for the given track. 1099 * {@hide} 1100 */ 1101 public static final int MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS = 1006; 1102 /** Provide the elapsed time measuring from the start of the recording 1103 * till the first output frame of the given track is received, excluding 1104 * any intentional start time offset of a recording session for the 1105 * purpose of eliminating the recording sound in the recorded file. 1106 * {@hide} 1107 */ 1108 public static final int MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS = 1007; 1109 /** Provide the start time difference (delay) betweeen this track and 1110 * the start of the movie. 1111 * {@hide} 1112 */ 1113 public static final int MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS = 1008; 1114 /** Provide the total number of data (in kilo-bytes) encoded. 1115 * {@hide} 1116 */ 1117 public static final int MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES = 1009; 1118 /** 1119 * {@hide} 1120 */ 1121 public static final int MEDIA_RECORDER_TRACK_INFO_LIST_END = 2000; 1122 1123 1124 /** 1125 * Interface definition of a callback to be invoked to communicate some 1126 * info and/or warning about the recording. 1127 */ 1128 public interface OnInfoListener 1129 { 1130 /** 1131 * Called to indicate an info or a warning during recording. 1132 * 1133 * @param mr the MediaRecorder the info pertains to 1134 * @param what the type of info or warning that has occurred 1135 * <ul> 1136 * <li>{@link #MEDIA_RECORDER_INFO_UNKNOWN} 1137 * <li>{@link #MEDIA_RECORDER_INFO_MAX_DURATION_REACHED} 1138 * <li>{@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED} 1139 * </ul> 1140 * @param extra an extra code, specific to the info type 1141 */ 1142 void onInfo(MediaRecorder mr, int what, int extra); 1143 } 1144 1145 /** 1146 * Register a callback to be invoked when an informational event occurs while 1147 * recording. 1148 * 1149 * @param listener the callback that will be run 1150 */ 1151 public void setOnInfoListener(OnInfoListener listener) 1152 { 1153 mOnInfoListener = listener; 1154 } 1155 1156 private class EventHandler extends Handler 1157 { 1158 private MediaRecorder mMediaRecorder; 1159 1160 public EventHandler(MediaRecorder mr, Looper looper) { 1161 super(looper); 1162 mMediaRecorder = mr; 1163 } 1164 1165 /* Do not change these values without updating their counterparts 1166 * in include/media/mediarecorder.h! 1167 */ 1168 private static final int MEDIA_RECORDER_EVENT_LIST_START = 1; 1169 private static final int MEDIA_RECORDER_EVENT_ERROR = 1; 1170 private static final int MEDIA_RECORDER_EVENT_INFO = 2; 1171 private static final int MEDIA_RECORDER_EVENT_LIST_END = 99; 1172 1173 /* Events related to individual tracks */ 1174 private static final int MEDIA_RECORDER_TRACK_EVENT_LIST_START = 100; 1175 private static final int MEDIA_RECORDER_TRACK_EVENT_ERROR = 100; 1176 private static final int MEDIA_RECORDER_TRACK_EVENT_INFO = 101; 1177 private static final int MEDIA_RECORDER_TRACK_EVENT_LIST_END = 1000; 1178 1179 1180 @Override 1181 public void handleMessage(Message msg) { 1182 if (mMediaRecorder.mNativeContext == 0) { 1183 Log.w(TAG, "mediarecorder went away with unhandled events"); 1184 return; 1185 } 1186 switch(msg.what) { 1187 case MEDIA_RECORDER_EVENT_ERROR: 1188 case MEDIA_RECORDER_TRACK_EVENT_ERROR: 1189 if (mOnErrorListener != null) 1190 mOnErrorListener.onError(mMediaRecorder, msg.arg1, msg.arg2); 1191 1192 return; 1193 1194 case MEDIA_RECORDER_EVENT_INFO: 1195 case MEDIA_RECORDER_TRACK_EVENT_INFO: 1196 if (mOnInfoListener != null) 1197 mOnInfoListener.onInfo(mMediaRecorder, msg.arg1, msg.arg2); 1198 1199 return; 1200 1201 default: 1202 Log.e(TAG, "Unknown message type " + msg.what); 1203 return; 1204 } 1205 } 1206 } 1207 1208 /** 1209 * Called from native code when an interesting event happens. This method 1210 * just uses the EventHandler system to post the event back to the main app thread. 1211 * We use a weak reference to the original MediaRecorder object so that the native 1212 * code is safe from the object disappearing from underneath it. (This is 1213 * the cookie passed to native_setup().) 1214 */ 1215 private static void postEventFromNative(Object mediarecorder_ref, 1216 int what, int arg1, int arg2, Object obj) 1217 { 1218 MediaRecorder mr = (MediaRecorder)((WeakReference)mediarecorder_ref).get(); 1219 if (mr == null) { 1220 return; 1221 } 1222 1223 if (mr.mEventHandler != null) { 1224 Message m = mr.mEventHandler.obtainMessage(what, arg1, arg2, obj); 1225 mr.mEventHandler.sendMessage(m); 1226 } 1227 } 1228 1229 /** 1230 * Releases resources associated with this MediaRecorder object. 1231 * It is good practice to call this method when you're done 1232 * using the MediaRecorder. In particular, whenever an Activity 1233 * of an application is paused (its onPause() method is called), 1234 * or stopped (its onStop() method is called), this method should be 1235 * invoked to release the MediaRecorder object, unless the application 1236 * has a special need to keep the object around. In addition to 1237 * unnecessary resources (such as memory and instances of codecs) 1238 * being held, failure to call this method immediately if a 1239 * MediaRecorder object is no longer needed may also lead to 1240 * continuous battery consumption for mobile devices, and recording 1241 * failure for other applications if no multiple instances of the 1242 * same codec are supported on a device. Even if multiple instances 1243 * of the same codec are supported, some performance degradation 1244 * may be expected when unnecessary multiple instances are used 1245 * at the same time. 1246 */ 1247 public native void release(); 1248 1249 private static native final void native_init(); 1250 1251 private native final void native_setup(Object mediarecorder_this, 1252 String clientName, String opPackageName) throws IllegalStateException; 1253 1254 private native final void native_finalize(); 1255 1256 private native void setParameter(String nameValuePair); 1257 1258 @Override 1259 protected void finalize() { native_finalize(); } 1260} 1261