[英]Android Video Recording using Media Recorder is Not working
我正在嘗試錄制視頻,但是在Media Record開始和Media Record Prepare崩潰時,請幫助我...這是我的代碼...
private boolean startRecording() {
camera.unlock();
try {
mediaRecorder = new MediaRecorder();
mediaRecorder.setOnErrorListener(new MediaRecorder.OnErrorListener() {
@Override
public void onError(MediaRecorder mr, int what, int extra) {
Log.i(TAG, "Error");
}
});
second=0;
minute=0;
recordCountTimer = new CountDownTimer(Long.MAX_VALUE,1000) {
@Override
public void onTick(long millisUntilFinished) {
second++;
if(second>=60){
second=0;
minute++;
}
recordCount.setText(String.format("%02d:%02d",minute,second));
}
@Override
public void onFinish() {
finish();
}
}.start();
mediaRecorder.setCamera(camera);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
Log.d(TAG, "A");
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
Log.e(TAG, "B");
mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
defaultVideoPath= FileManger.getOutputMediaFile(MEDIA_TYPE_VIDEO).getAbsolutePath();
// uriVid = Uri.parse(FileManger.getOutputMediaFile(MEDIA_TYPE_VIDEO).getAbsolutePath());
// defaultVideoPath = getRealPathFromUri(uriVid);
mediaRecorder.setOutputFile(defaultVideoPath);
mediaRecorder.setVideoSize(recordingCameraSurface.getWidth(), recordingCameraSurface.getHeight());
mediaRecorder.setVideoFrameRate(20);
Log.v(TAG, "C");
mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
mediaRecorder.setMaxFileSize(50000);
mediaRecorder.prepare();
Log.w(TAG, "D");
mediaRecorder.start();
Log.e(TAG, "E");
} catch (IOException e) {
releaseMediaRecorder();
return false;
}catch (IllegalStateException t){
releaseMediaRecorder();
return false;
}
return true;
}
它給像
RECORDER_OK﹕ B
MediaRecorder﹕ setOutputFormat called in an invalid state: 4
在這里,我要進行下一個活動:
Intent intent = new Intent(RecordBuyPage.this,CheckAndSaveActivity.class);
intent.putExtra("VIDEOFILEPATH", defaultVideoPath);
startActivity(intent);
在下一個活動中,我得到的路徑為空,如:
player.setDataSource(getIntent().getStringExtra("VIDEOFILEPATH"));
我認為我致電Media Recorder的命令是正確的,但在以下方面也遇到了麻煩:
mediarecoreder.prepare().
請提供一些有效的解決方案,我從堆棧溢出中嘗試了很多,但仍無法正常工作。...我認為視頻未錄制,因為當我通過意圖傳遞視頻時,它為空...
希望您點擊以下示例代碼鏈接( Media Recorder
) https://github.com/googlesamples/android-MediaRecorder
並且它有一些錯誤,可以portrait
record media
,因此要解決此問題,請點擊此鏈接
並且在此鏈接中您將獲得media path
stored
並且可以輕松地pass
media path
pass
到其他activity
。 看看,希望對您有所幫助。
要獲取stop
capturing
時media
的路徑,可以在CaptureClick
方法上執行此操作
Log.d("Video file path", CameraHelper.getOutputMediaFile(
CameraHelper.MEDIA_TYPE_VIDEO).toString());
並完成按鈕OnClickListener
public void onCaptureClick(View view) {
if (isRecording) {
// BEGIN_INCLUDE(stop_release_media_recorder)
// stop recording and release camera
mMediaRecorder.stop(); // stop the recording
releaseMediaRecorder(); // release the MediaRecorder object
mCamera.lock(); // take camera access back from MediaRecorder
// inform the user that recording has stopped
setCaptureButtonText("Capture");
isRecording = false;
releaseCamera();
Log.d("Video file path", CameraHelper.getOutputMediaFile(
CameraHelper.MEDIA_TYPE_VIDEO).toString());
// END_INCLUDE(stop_release_media_recorder)
} else {
// BEGIN_INCLUDE(prepare_start_media_recorder)
new MediaPrepareTask().execute(null, null, null);
// END_INCLUDE(prepare_start_media_recorder)
}
}
請點擊上面提供的兩個鏈接,它可能會解決您的問題。
嘗試這個
public class VideoCapture extends Activity implements OnClickListener
,SurfaceHolder.Callback {
MediaRecorder recorder;
SurfaceHolder holder;
boolean recording = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
recorder = new MediaRecorder();
initRecorder();
setContentView(R.layout.main);
SurfaceView cameraView = (SurfaceView) findViewById(R.id.CameraView);
holder = cameraView.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
cameraView.setClickable(true);
cameraView.setOnClickListener(this);
}
private void initRecorder() {
recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
CamcorderProfile cpHigh = CamcorderProfile
.get(CamcorderProfile.QUALITY_HIGH);
recorder.setProfile(cpHigh);
recorder.setOutputFile("/sdcard/videocapture_example.mp4");
recorder.setMaxDuration(50000); // 50 seconds
recorder.setMaxFileSize(5000000); // Approximately 5 megabytes
}
private void prepareRecorder() {
recorder.setPreviewDisplay(holder.getSurface());
try {
recorder.prepare();
} catch (IllegalStateException e) {
e.printStackTrace();
finish();
} catch (IOException e) {
e.printStackTrace();
finish();
}
}
public void onClick(View v) {
if (recording) {
recorder.stop();
recording = false;
// Let's initRecorder so we can record again
initRecorder();
prepareRecorder();
} else {
recording = true;
recorder.start();
}
}
public void surfaceCreated(SurfaceHolder holder) {
prepareRecorder();
}
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
}
public void surfaceDestroyed(SurfaceHolder holder) {
if (recording) {
recorder.stop();
recording = false;
}
recorder.release();
finish();
}
}
Include Permissions in Manifest file :
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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