/**
* Class constructor.
*
* @param audioSource the recording source. See {@link MediaRecorder.AudioSource} for recording
* source definitions.
* @param sampleRateInHz the sample rate expressed in Hertz. 44100Hz is currently the only rate
* that is guaranteed to work on all devices, but other rates such as 22050, 16000, and 11025
* may work on some devices.
* @param channelConfig describes the configuration of the audio channels. See {@link
* AudioFormat#CHANNEL_IN_MONO} and {@link AudioFormat#CHANNEL_IN_STEREO}. {@link
* AudioFormat#CHANNEL_IN_MONO} is guaranteed to work on all devices.
* @param audioFormat the format in which the audio data is represented. See {@link
* AudioFormat#ENCODING_PCM_16BIT} and {@link AudioFormat#ENCODING_PCM_8BIT}
* @param bufferSizeInBytes the total size (in bytes) of the buffer where audio data is written to
* during the recording. New audio data can be read from this buffer in smaller chunks than
* this size. See {@link #getMinBufferSize(int, int, int)} to determine the minimum required
* buffer size for the successful creation of an AudioRecord instance. Using values smaller
* than getMinBufferSize() will result in an initialization failure.
* @throws java.lang.IllegalArgumentException
*/
public AudioRecord(
int audioSource,
int sampleRateInHz,
int channelConfig,
int audioFormat,
int bufferSizeInBytes)
throws IllegalArgumentException {
/// M: Check record permission to user for CTA. {@
if (FeatureOption.MTK_MOBILE_MANAGEMENT) {
Xlog.d(TAG, "AudioRecord>>>");
IBinder binder = ServiceManager.getService(Context.MOBILE_SERVICE);
IMobileManagerService moms = IMobileManagerService.Stub.asInterface(binder);
int uid = Binder.getCallingUid();
String permission = SubPermissions.RECORD_MIC;
try {
if (moms != null
&& (moms.checkPermission(permission, uid) != PackageManager.PERMISSION_GRANTED)) {
Xlog.d(TAG, "AudioRecord<<<: user denied permission " + permission + " for uid " + uid);
throw new IllegalArgumentException();
}
} catch (RemoteException e) {
Xlog.e(TAG, "CheckPermission failed in prepare with RemoteException, continues record.", e);
}
}
/// @}
mRecordingState = RECORDSTATE_STOPPED;
// remember which looper is associated with the AudioRecord instanciation
if ((mInitializationLooper = Looper.myLooper()) == null) {
mInitializationLooper = Looper.getMainLooper();
}
audioParamCheck(audioSource, sampleRateInHz, channelConfig, audioFormat);
audioBuffSizeCheck(bufferSizeInBytes);
// native initialization
int[] session = new int[1];
session[0] = 0;
// TODO: update native initialization when information about hardware init failure
// due to capture device already open is available.
int initResult =
native_setup(
new WeakReference<AudioRecord>(this),
mRecordSource,
mSampleRate,
mChannelMask,
mAudioFormat,
mNativeBufferSizeInBytes,
session);
if (initResult != SUCCESS) {
loge("Error code " + initResult + " when initializing native AudioRecord object.");
return; // with mState == STATE_UNINITIALIZED
}
mSessionId = session[0];
mState = STATE_INITIALIZED;
}
/**
* Class constructor.
*
* @param audioSource the recording source. See {@link MediaRecorder.AudioSource} for recording
* source definitions.
* @param sampleRateInHz the sample rate expressed in Hertz. Examples of rates are (but not
* limited to) 44100, 22050 and 11025.
* @param channelConfig describes the configuration of the audio channels. See {@link
* AudioFormat#CHANNEL_IN_MONO} and {@link AudioFormat#CHANNEL_IN_STEREO}
* @param audioFormat the format in which the audio data is represented. See {@link
* AudioFormat#ENCODING_PCM_16BIT} and {@link AudioFormat#ENCODING_PCM_8BIT}
* @param bufferSizeInBytes the total size (in bytes) of the buffer where audio data is written to
* during the recording. New audio data can be read from this buffer in smaller chunks than
* this size. See {@link #getMinBufferSize(int, int, int)} to determine the minimum required
* buffer size for the successful creation of an AudioRecord instance. Using values smaller
* than getMinBufferSize() will result in an initialization failure.
* @throws java.lang.IllegalArgumentException
*/
public AudioRecord(
int audioSource,
int sampleRateInHz,
int channelConfig,
int audioFormat,
int bufferSizeInBytes)
throws IllegalArgumentException {
mState = STATE_UNINITIALIZED;
mRecordingState = RECORDSTATE_STOPPED;
// remember which looper is associated with the AudioRecord instanciation
if ((mInitializationLooper = Looper.myLooper()) == null) {
mInitializationLooper = Looper.getMainLooper();
}
audioParamCheck(audioSource, sampleRateInHz, channelConfig, audioFormat);
audioBuffSizeCheck(bufferSizeInBytes);
// native initialization
// TODO: update native initialization when information about hardware init failure
// due to capture device already open is available.
int initResult =
native_setup(
new WeakReference<AudioRecord>(this),
mRecordSource,
mSampleRate,
mChannels,
mAudioFormat,
mNativeBufferSizeInBytes);
if (initResult != SUCCESS) {
loge("Error code " + initResult + " when initializing native AudioRecord object.");
return; // with mState == STATE_UNINITIALIZED
}
mState = STATE_INITIALIZED;
}