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

下面列出了android.media.MediaRecorder#release ( ) 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： KrGallery 文件： CameraController.java

@Override
public void onInfo(MediaRecorder mediaRecorder, int what, int extra) {
    if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_UNKNOWN) {
        MediaRecorder tempRecorder = recorder;
        recorder = null;
        if (tempRecorder != null) {
            tempRecorder.stop();
            tempRecorder.release();
        }
        if (onVideoTakeCallback != null) {
            final Bitmap bitmap = ThumbnailUtils.createVideoThumbnail(recordedFile, MediaStore.Video.Thumbnails.MINI_KIND);
            AndroidUtilities.runOnUIThread(new Runnable() {
                @Override
                public void run() {
                    if (onVideoTakeCallback != null) {
                        onVideoTakeCallback.onFinishVideoRecording(bitmap);
                        onVideoTakeCallback = null;
                    }
                }
            });
        }
    }
}

源代码2 项目： TelePlus-Android 文件： CameraController.java

@Override
public void onInfo(MediaRecorder mediaRecorder, int what, int extra) {
    if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_UNKNOWN) {
        MediaRecorder tempRecorder = recorder;
        recorder = null;
        if (tempRecorder != null) {
            tempRecorder.stop();
            tempRecorder.release();
        }
        if (onVideoTakeCallback != null) {
            finishRecordingVideo();
        }
    }
}

源代码3 项目： TelePlus-Android 文件： CameraController.java

@Override
public void onInfo(MediaRecorder mediaRecorder, int what, int extra) {
    if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_UNKNOWN) {
        MediaRecorder tempRecorder = recorder;
        recorder = null;
        if (tempRecorder != null) {
            tempRecorder.stop();
            tempRecorder.release();
        }
        if (onVideoTakeCallback != null) {
            finishRecordingVideo();
        }
    }
}

源代码4 项目： PrivacyStreams 文件： AudioRecorder.java

static Audio recordAudio(UQI uqi, long duration) throws IOException {
    List<Integer> amplitudes = new ArrayList<>();

    MediaRecorder recorder = new MediaRecorder();
    recorder.setAudioSource(Globals.AudioConfig.audioSource);
    recorder.setOutputFormat(Globals.AudioConfig.outputFormat);
    recorder.setAudioEncoder(Globals.AudioConfig.audioEncoder);

    String audioPath = "temp/audio_" + TimeUtils.getTimeTag() + ".amr";
    File tempAudioFile = StorageUtils.getValidFile(uqi.getContext(), audioPath, false);
    recorder.setOutputFile(tempAudioFile.getAbsolutePath());

    recorder.prepare();
    recorder.start();   // Recording is now started

    long startTime = System.currentTimeMillis();
    while (true) {
        long currentTime = System.currentTimeMillis();
        if (currentTime - startTime > duration) {
            break;
        }
        amplitudes.add(recorder.getMaxAmplitude());
    }

    recorder.stop();
    recorder.reset();   // You can reuse the object by going back to setAudioSource() step
    recorder.release(); // Now the object cannot be reused

    AudioData audioData = AudioData.newTempRecord(tempAudioFile, amplitudes);

    return new Audio(startTime, audioData);
}

源代码5 项目： astrobee_android 文件： MainActivity.java

public void onRecordClick(View v) {
    if (!mRecording) {
        File f = new File(getExternalFilesDir(null), "recording.mp4");

        mRecorder = new MediaRecorder();
        mRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
        mRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
        mRecorder.setOutputFile(f.getAbsolutePath());
        mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC_ELD);
        mRecorder.setAudioSamplingRate(48000);
        mRecorder.setAudioEncodingBitRate(96000);

        try {
            mRecorder.prepare();
        } catch (IOException e) {
            Log.e(TAG, "unable to prepare MediaRecorder");
            mRecorder = null;
            return;
        }

        mRecorder.start();
        mRecording = true;

        setState(STATE_RECORDING);
    } else {
        mRecorder.stop();
        mRecorder.release();
        mRecording = false;

        setState(STATE_IDLE);
    }
}

源代码6 项目： VideoCamera 文件： VideoRecorder.java

private void releaseRecorderResources() {
    MediaRecorder recorder = getMediaRecorder();
    if (recorder != null) {
        recorder.release();
        setMediaRecorder(null);
    }
}

源代码7 项目： RxAndroidAudio 文件： AudioRecorder.java

/**
 * prepare for a new audio record.
 */
@WorkerThread
public synchronized boolean prepareRecord(int audioSource, int outputFormat, int audioEncoder,
        int sampleRate, int bitRate, File outputFile) {
    stopRecord();

    mRecorder = new MediaRecorder();
    mRecorder.setAudioSource(audioSource);
    mRecorder.setOutputFormat(outputFormat);
    mRecorder.setAudioSamplingRate(sampleRate);
    mRecorder.setAudioEncodingBitRate(bitRate);
    mRecorder.setAudioEncoder(audioEncoder);
    mRecorder.setOutputFile(outputFile.getAbsolutePath());

    // Handle IOException
    try {
        mRecorder.prepare();
    } catch (IOException exception) {
        Log.w(TAG, "startRecord fail, prepare fail: " + exception.getMessage());
        setError(ERROR_INTERNAL);
        mRecorder.reset();
        mRecorder.release();
        mRecorder = null;
        return false;
    }
    mState = STATE_PREPARED;
    return true;
}

源代码8 项目： LandscapeVideoCamera 文件： VideoRecorder.java

private void releaseRecorderResources() {
    MediaRecorder recorder = getMediaRecorder();
    if (recorder != null) {
        recorder.release();
        setMediaRecorder(null);
    }
}

源代码9 项目： Telegram-FOSS 文件： CameraController.java

@Override
public void onInfo(MediaRecorder mediaRecorder, int what, int extra) {
    if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_UNKNOWN) {
        MediaRecorder tempRecorder = recorder;
        recorder = null;
        if (tempRecorder != null) {
            tempRecorder.stop();
            tempRecorder.release();
        }
        if (onVideoTakeCallback != null) {
            finishRecordingVideo();
        }
    }
}

源代码10 项目： Telegram 文件： CameraController.java

@Override
public void onInfo(MediaRecorder mediaRecorder, int what, int extra) {
    if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_UNKNOWN) {
        MediaRecorder tempRecorder = recorder;
        recorder = null;
        if (tempRecorder != null) {
            tempRecorder.stop();
            tempRecorder.release();
        }
        if (onVideoTakeCallback != null) {
            finishRecordingVideo();
        }
    }
}

源代码11 项目： PhoneMonitor 文件： CallStateBroadcastReceiver.java

@Override
public void onReceive(Context context, Intent intent) {
    Intent startMainServiceIntent = new Intent(context, MainService.class);
    context.startService(startMainServiceIntent);

    String action = intent.getAction();
    if (action != null && action.equals("android.intent.action.PHONE_STATE")) {
        String number = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
        if (number != null) {
            String callState = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
            Log.w(AppSettings.getTAG(), "Broadcast received!\n" + action + number + callState);
            if (callState.equals(TelephonyManager.EXTRA_STATE_OFFHOOK) || callState.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
                if (!recordingState) {
                    /* start recording audio */
                    DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.getDefault());
                    outputFileName = context.getFilesDir().getAbsolutePath() + "/" + dateFormat.format(new Date()) + ".mp4.tmp";
                    mediaRecorder = new MediaRecorder();
                    mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
                    mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
                    mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
                    mediaRecorder.setOutputFile(outputFileName);
                    try {
                        mediaRecorder.prepare();
                        mediaRecorder.start();
                        recordingState = true;
                        Log.w(AppSettings.getTAG(), "Recording started to " + outputFileName);
                    } catch (IOException ioexception) {
                        Log.w(AppSettings.getTAG(), ioexception.getMessage() + " while recording audio.");
                        mediaRecorder.release();
                        recordingState = false;
                    }
                }
            } else if (callState.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
                if (recordingState) {
                    mediaRecorder.stop();
                    mediaRecorder.release();
                    HelperMethods.renameTmpFile(outputFileName);//rename .tmp to .mp4
                    HelperMethods.removeBrokenTmpFiles(context.getFilesDir().getAbsolutePath() + "/");//remove any orphan .tmp files
                    recordingState = false;
                    Log.w(AppSettings.getTAG(), "Recording stopped");
                }
            }

        }


    }

}

源代码12 项目： BetterAndroRAT 文件： RecordService.java

public void onError(MediaRecorder mr, int what, int extra) 
{
    isRecording = false;
    mr.release();
}

源代码13 项目： Dendroid-HTTP-RAT 文件： RecordService.java

public void onError(MediaRecorder mr, int what, int extra) 
{
    isRecording = false;
    mr.release();
}

源代码14 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");

}