对于我的项目，我使用MediaRecorder来录制视频。
此代码适用于大多数设备，但在HTC Desire（使用Android 2.3）中，当我致电recorder.start();时，它正在抛出ERROR/Camera(25146): Error 100。有人有任何解决方法吗？
我的代码是这样的：
Camera camera = Camera.open();
Parameters parameters = camera.getParameters();
if (flash) {
parameters.setFlashMode(Parameters.FLASH_MODE_TORCH);
}
else {
parameters.setFlashMode(Parameters.FLASH_MODE_OFF);
}
camera.setParameters(parameters);
try {
camera.setPreviewDisplay(holder);
} catch (IOException e1) {
e1.printStackTrace();
}
camera.startPreview();
camera.unlock();
recorder = new MediaRecorder();
recorder.setCamera(camera);
am = (AudioManager) context.getSystemService(Activity.AUDIO_SERVICE);
am.setMode(AudioManager.STREAM_VOICE_CALL);
am.startBluetoothSco();
try {
recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
if(android.os.Build.VERSION.SDK_INT>=8){
recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
CamcorderProfile cp = CamcorderProfile.get(CamcorderProfile.QUALITY_LOW);
recorder.setProfile(cp);
}
else{
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
recorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
recorder.setVideoSize(CIF_WIDTH, CIF_HEIGHT);
recorder.setVideoFrameRate(FRAME_RATE);
}
recorder.setMaxDuration(maxduration*1000);
recorder.setPreviewDisplay(holder.getSurface());
String data_folder=Environment.getExternalStorageDirectory().getAbsolutePath() + settings.location_in_sdcard;
File ff=new File(data_folder);
if(!ff.exists()){
ff.mkdirs();
}
String path = data_folder+api.getCurrentTimeStamp()+".3gp";
recorder.setOutputFile(path);
try{
recorder.prepare();
}
catch (Exception ee) {
ee.printStackTrace();
}
}
catch (Exception e) {
Log.e("ls", e.toString(), e);
}
recorder.start();
日志报告：
09-27 18:11:37.358: ERROR/StagefrightRecorder(24740): Failed to set frame rate to 30 fps. The actual frame rate is 15
09-27 18:11:37.478: ERROR/QualcommCameraHardware(24740): frames in busy Q = 0
09-27 18:11:37.478: ERROR/QualcommCameraHardware(24740): frames in busy Q = 0 after deq and add to freeQ
09-27 18:11:37.478: ERROR/OMXNodeInstance(24740): OMX_UseBuffer failed with error -2147479547 (0x80001005)
09-27 18:11:37.478: ERROR/OMXCodec(24740): allocate_buffer_with_backup failed
09-27 18:11:37.478: ERROR/OMXCodec(24740): [ 09-27 18:11:37.478 24740:0x60a8 F/OMXCodec ]
09-27 18:11:37.478: ERROR/OMXCodec(24740): frameworks/base/media/libstagefright/OMXCodec.cpp:1863 err != OK
09-27 18:11:38.679: ERROR/Camera(25146): Error 100
09-27 18:11:40.121: ERROR/AudioService(1335): Media server died.
09-27 18:11:41.242: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.292: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.362: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.402: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.422: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.442: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.452: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.472: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.532: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.702: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.722: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.732: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.752: ERROR/OverlayLIB(1335): Error parameters for screen direction is not correct
09-27 18:11:41.762: ERROR/Overlay(1335): connect to socket failed
09-27 18:11:44.285: ERROR/HTC Acoustic(25182): ioctl ACOUSTIC_UPDATE_ADIE failed -1
09-27 18:11:44.285: ERROR/HTC Acoustic(25182): ioctl ACOUSTIC_UPDATE_ADIE failed -1
09-27 18:11:44.285: ERROR/HTC Acoustic(25182): ioctl ACOUSTIC_UPDATE_ADIE failed -1
09-27 18:11:44.305: ERROR/HTC Acoustic(25182): failed to open A2051 CSV files /system/etc/TPA2051_CFG.csv.
09-27 18:11:44.305: ERROR/AudioHardwareMSM7X30(25182): set_tpa2051_parameters fail
09-27 18:11:44.305: ERROR/AudioHardwareMSM7X30(25182): set_aic3254_parameters failed
09-27 18:11:44.315: ERROR/AudioPolicyManagerBase(25182): mSupportBacMic = 0
09-27 18:11:45.626: ERROR/AudioService(1335): Media server started.
09-27 18:12:42.191: ERROR/HtcLockScreen2.0(1335): MusicCtrl: updateImage~ exception:null