summaryrefslogtreecommitdiffstats
path: root/media
diff options
context:
space:
mode:
authorGlenn Kasten <gkasten@google.com>2012-12-06 11:14:05 -0800
committerAndroid (Google) Code Review <android-gerrit@google.com>2012-12-06 11:14:05 -0800
commitf0336d11f565aebdbf182289b2b9a4c58bfd80f9 (patch)
treecd22ecccd7aa3d84be2468c0ca32a8035924ed1d /media
parent4bbfa9dbb08c815b890bcc1dc1759ca335b568f8 (diff)
parent5e958ed0cd41fd110f6d4b63cebc5cca927f5e6c (diff)
downloadframeworks_base-f0336d11f565aebdbf182289b2b9a4c58bfd80f9.zip
frameworks_base-f0336d11f565aebdbf182289b2b9a4c58bfd80f9.tar.gz
frameworks_base-f0336d11f565aebdbf182289b2b9a4c58bfd80f9.tar.bz2
Merge "Remove whitespace at end of line"
Diffstat (limited to 'media')
-rw-r--r--media/java/android/media/AudioRecord.java167
1 files changed, 83 insertions, 84 deletions
diff --git a/media/java/android/media/AudioRecord.java b/media/java/android/media/AudioRecord.java
index 4e4a1faa..06de15f 100644
--- a/media/java/android/media/AudioRecord.java
+++ b/media/java/android/media/AudioRecord.java
@@ -30,12 +30,12 @@ import android.util.Log;
* The AudioRecord class manages the audio resources for Java applications
* to record audio from the audio input hardware of the platform. This is
* achieved by "pulling" (reading) the data from the AudioRecord object. The
- * application is responsible for polling the AudioRecord object in time using one of
+ * application is responsible for polling the AudioRecord object in time using one of
* the following three methods: {@link #read(byte[],int, int)}, {@link #read(short[], int, int)}
- * or {@link #read(ByteBuffer, int)}. The choice of which method to use will be based
+ * or {@link #read(ByteBuffer, int)}. The choice of which method to use will be based
* on the audio data storage format that is the most convenient for the user of AudioRecord.
* <p>Upon creation, an AudioRecord object initializes its associated audio buffer that it will
- * fill with the new audio data. The size of this buffer, specified during the construction,
+ * fill with the new audio data. The size of this buffer, specified during the construction,
* determines how long an AudioRecord can record before "over-running" data that has not
* been read yet. Data should be read from the audio hardware in chunks of sizes inferior to
* the total recording buffer size.
@@ -46,20 +46,20 @@ public class AudioRecord
// Constants
//--------------------
/**
- * indicates AudioRecord state is not successfully initialized.
+ * indicates AudioRecord state is not successfully initialized.
*/
public static final int STATE_UNINITIALIZED = 0;
/**
- * indicates AudioRecord state is ready to be used
+ * indicates AudioRecord state is ready to be used
*/
public static final int STATE_INITIALIZED = 1;
/**
- * indicates AudioRecord recording state is not recording
+ * indicates AudioRecord recording state is not recording
*/
public static final int RECORDSTATE_STOPPED = 1; // matches SL_RECORDSTATE_STOPPED
/**
- * indicates AudioRecord recording state is recording
+ * indicates AudioRecord recording state is recording
*/
public static final int RECORDSTATE_RECORDING = 3;// matches SL_RECORDSTATE_RECORDING
@@ -81,15 +81,15 @@ public class AudioRecord
* Denotes a failure due to the improper use of a method.
*/
public static final int ERROR_INVALID_OPERATION = -3;
-
+
private static final int AUDIORECORD_ERROR_SETUP_ZEROFRAMECOUNT = -16;
private static final int AUDIORECORD_ERROR_SETUP_INVALIDCHANNELMASK = -17;
private static final int AUDIORECORD_ERROR_SETUP_INVALIDFORMAT = -18;
private static final int AUDIORECORD_ERROR_SETUP_INVALIDSOURCE = -19;
private static final int AUDIORECORD_ERROR_SETUP_NATIVEINITFAILED = -20;
-
+
// Events:
- // to keep in sync with frameworks/base/include/media/AudioRecord.h
+ // to keep in sync with frameworks/base/include/media/AudioRecord.h
/**
* Event id denotes when record head has reached a previously set marker.
*/
@@ -98,29 +98,29 @@ public class AudioRecord
* Event id denotes when previously set update period has elapsed during recording.
*/
private static final int NATIVE_EVENT_NEW_POS = 3;
-
+
private final static String TAG = "AudioRecord-Java";
//---------------------------------------------------------
// Used exclusively by native code
//--------------------
- /**
- * Accessed by native methods: provides access to C++ AudioRecord object
+ /**
+ * Accessed by native methods: provides access to C++ AudioRecord object
*/
@SuppressWarnings("unused")
private int mNativeRecorderInJavaObj;
- /**
+ /**
* Accessed by native methods: provides access to the callback data.
*/
@SuppressWarnings("unused")
private int mNativeCallbackCookie;
-
+
//---------------------------------------------------------
// Member variables
- //--------------------
+ //--------------------
/**
* The audio data sampling rate in Hz.
*/
@@ -197,26 +197,26 @@ public class AudioRecord
* @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.
+ * @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
+ * @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
+ * 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,
+ public AudioRecord(int audioSource, int sampleRateInHz, int channelConfig, int audioFormat,
int bufferSizeInBytes)
- throws IllegalArgumentException {
+ 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();
@@ -231,7 +231,7 @@ public class AudioRecord
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),
+ int initResult = native_setup( new WeakReference<AudioRecord>(this),
mRecordSource, mSampleRate, mChannels, mAudioFormat, mNativeBufferSizeInBytes,
session);
if (initResult != SUCCESS) {
@@ -253,7 +253,7 @@ public class AudioRecord
// mChannels is valid
// mAudioFormat is valid
// mSampleRate is valid
- private void audioParamCheck(int audioSource, int sampleRateInHz,
+ private void audioParamCheck(int audioSource, int sampleRateInHz,
int channelConfig, int audioFormat) {
//--------------
@@ -264,13 +264,13 @@ public class AudioRecord
} else {
mRecordSource = audioSource;
}
-
+
//--------------
// sample rate
if ( (sampleRateInHz < 4000) || (sampleRateInHz > 48000) ) {
throw (new IllegalArgumentException(sampleRateInHz
+ "Hz is not a supported sample rate."));
- } else {
+ } else {
mSampleRate = sampleRateInHz;
}
@@ -309,7 +309,7 @@ public class AudioRecord
break;
default:
mAudioFormat = AudioFormat.ENCODING_INVALID;
- throw (new IllegalArgumentException("Unsupported sample encoding."
+ throw (new IllegalArgumentException("Unsupported sample encoding."
+ " Should be ENCODING_PCM_8BIT or ENCODING_PCM_16BIT."));
}
}
@@ -322,16 +322,16 @@ public class AudioRecord
// postcondition:
// mNativeBufferSizeInBytes is valid (multiple of frame size, positive)
private void audioBuffSizeCheck(int audioBufferSize) {
- // NB: this section is only valid with PCM data.
+ // NB: this section is only valid with PCM data.
// To update when supporting compressed formats
- int frameSizeInBytes = mChannelCount
+ int frameSizeInBytes = mChannelCount
* (mAudioFormat == AudioFormat.ENCODING_PCM_8BIT ? 1 : 2);
if ((audioBufferSize % frameSizeInBytes != 0) || (audioBufferSize < 1)) {
throw (new IllegalArgumentException("Invalid audio buffer size."));
}
mNativeBufferSizeInBytes = audioBufferSize;
- }
+ }
@@ -343,7 +343,7 @@ public class AudioRecord
public void release() {
try {
stop();
- } catch(IllegalStateException ise) {
+ } catch(IllegalStateException ise) {
// don't raise an exception, we're releasing the resources.
}
native_release();
@@ -354,7 +354,7 @@ public class AudioRecord
@Override
protected void finalize() {
native_finalize();
- }
+ }
//--------------------------------------------------------------------------
@@ -366,9 +366,9 @@ public class AudioRecord
public int getSampleRate() {
return mSampleRate;
}
-
+
/**
- * Returns the audio recording source.
+ * Returns the audio recording source.
* @see MediaRecorder.AudioSource
*/
public int getAudioSource() {
@@ -384,7 +384,7 @@ public class AudioRecord
}
/**
- * Returns the configured channel configuration.
+ * Returns the configured channel configuration.
* See {@link AudioFormat#CHANNEL_IN_MONO}
* and {@link AudioFormat#CHANNEL_IN_STEREO}.
*/
@@ -401,7 +401,7 @@ public class AudioRecord
/**
* Returns the state of the AudioRecord instance. This is useful after the
- * AudioRecord instance has been created to check if it was initialized
+ * AudioRecord instance has been created to check if it was initialized
* properly. This ensures that the appropriate hardware resources have been
* acquired.
* @see AudioRecord#STATE_INITIALIZED
@@ -441,22 +441,22 @@ public class AudioRecord
* should be chosen according to the expected frequency at which the AudioRecord instance
* will be polled for new data.
* @param sampleRateInHz the sample rate expressed in Hertz.
- * @param channelConfig describes the configuration of the audio channels.
+ * @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.
+ * @param audioFormat the format in which the audio data is represented.
* See {@link AudioFormat#ENCODING_PCM_16BIT}.
- * @return {@link #ERROR_BAD_VALUE} if the recording parameters are not supported by the
+ * @return {@link #ERROR_BAD_VALUE} if the recording parameters are not supported by the
* hardware, or an invalid parameter was passed,
- * or {@link #ERROR} if the implementation was unable to query the hardware for its
- * output properties,
+ * or {@link #ERROR} if the implementation was unable to query the hardware for its
+ * output properties,
* or the minimum buffer size expressed in bytes.
* @see #AudioRecord(int, int, int, int, int) for more information on valid
* configuration values.
*/
static public int getMinBufferSize(int sampleRateInHz, int channelConfig, int audioFormat) {
int channelCount = 0;
- switch(channelConfig) {
+ switch (channelConfig) {
case AudioFormat.CHANNEL_IN_DEFAULT: // AudioFormat.CHANNEL_CONFIGURATION_DEFAULT
case AudioFormat.CHANNEL_IN_MONO:
case AudioFormat.CHANNEL_CONFIGURATION_MONO:
@@ -471,17 +471,17 @@ public class AudioRecord
loge("getMinBufferSize(): Invalid channel configuration.");
return AudioRecord.ERROR_BAD_VALUE;
}
-
+
// PCM_8BIT is not supported at the moment
if (audioFormat != AudioFormat.ENCODING_PCM_16BIT) {
loge("getMinBufferSize(): Invalid audio format.");
return AudioRecord.ERROR_BAD_VALUE;
}
-
+
int size = native_get_min_buff_size(sampleRateInHz, channelCount, audioFormat);
if (size == 0) {
return AudioRecord.ERROR_BAD_VALUE;
- }
+ }
else if (size == -1) {
return AudioRecord.ERROR;
}
@@ -503,7 +503,7 @@ public class AudioRecord
// Transport control methods
//--------------------
/**
- * Starts recording from the AudioRecord instance.
+ * Starts recording from the AudioRecord instance.
* @throws IllegalStateException
*/
public void startRecording()
@@ -573,13 +573,13 @@ public class AudioRecord
* if the object wasn't properly initialized, or {@link #ERROR_BAD_VALUE} if
* the parameters don't resolve to valid data and indexes.
* The number of bytes will not exceed sizeInBytes.
- */
+ */
public int read(byte[] audioData, int offsetInBytes, int sizeInBytes) {
if (mState != STATE_INITIALIZED) {
return ERROR_INVALID_OPERATION;
}
-
- if ( (audioData == null) || (offsetInBytes < 0 ) || (sizeInBytes < 0)
+
+ if ( (audioData == null) || (offsetInBytes < 0 ) || (sizeInBytes < 0)
|| (offsetInBytes + sizeInBytes > audioData.length)) {
return ERROR_BAD_VALUE;
}
@@ -597,13 +597,13 @@ public class AudioRecord
* if the object wasn't properly initialized, or {@link #ERROR_BAD_VALUE} if
* the parameters don't resolve to valid data and indexes.
* The number of shorts will not exceed sizeInShorts.
- */
+ */
public int read(short[] audioData, int offsetInShorts, int sizeInShorts) {
if (mState != STATE_INITIALIZED) {
return ERROR_INVALID_OPERATION;
}
-
- if ( (audioData == null) || (offsetInShorts < 0 ) || (sizeInShorts < 0)
+
+ if ( (audioData == null) || (offsetInShorts < 0 ) || (sizeInShorts < 0)
|| (offsetInShorts + sizeInShorts > audioData.length)) {
return ERROR_BAD_VALUE;
}
@@ -621,12 +621,12 @@ public class AudioRecord
* if the object wasn't properly initialized, or {@link #ERROR_BAD_VALUE} if
* the parameters don't resolve to valid data and indexes.
* The number of bytes will not exceed sizeInBytes.
- */
+ */
public int read(ByteBuffer audioBuffer, int sizeInBytes) {
if (mState != STATE_INITIALIZED) {
return ERROR_INVALID_OPERATION;
}
-
+
if ( (audioBuffer == null) || (sizeInBytes < 0) ) {
return ERROR_BAD_VALUE;
}
@@ -637,7 +637,7 @@ public class AudioRecord
//--------------------------------------------------------------------------
// Initialization / configuration
- //--------------------
+ //--------------------
/**
* Sets the listener the AudioRecord notifies when a previously set marker is reached or
* for each periodic record head position update.
@@ -655,12 +655,12 @@ public class AudioRecord
* @param listener
* @param handler the Handler that will receive the event notification messages.
*/
- public void setRecordPositionUpdateListener(OnRecordPositionUpdateListener listener,
+ public void setRecordPositionUpdateListener(OnRecordPositionUpdateListener listener,
Handler handler) {
synchronized (mPositionListenerLock) {
-
+
mPositionListener = listener;
-
+
if (listener != null) {
if (handler != null) {
mEventHandler = new NativeEventHandler(this, handler.getLooper());
@@ -672,17 +672,17 @@ public class AudioRecord
mEventHandler = null;
}
}
-
+
}
/**
- * Sets the marker position at which the listener is called, if set with
- * {@link #setRecordPositionUpdateListener(OnRecordPositionUpdateListener)} or
+ * Sets the marker position at which the listener is called, if set with
+ * {@link #setRecordPositionUpdateListener(OnRecordPositionUpdateListener)} or
* {@link #setRecordPositionUpdateListener(OnRecordPositionUpdateListener, Handler)}.
* @param markerInFrames marker position expressed in frames
* @return error code or success, see {@link #SUCCESS}, {@link #ERROR_BAD_VALUE},
- * {@link #ERROR_INVALID_OPERATION}
+ * {@link #ERROR_INVALID_OPERATION}
*/
public int setNotificationMarkerPosition(int markerInFrames) {
return native_set_marker_pos(markerInFrames);
@@ -691,7 +691,7 @@ public class AudioRecord
/**
* Sets the period at which the listener is called, if set with
- * {@link #setRecordPositionUpdateListener(OnRecordPositionUpdateListener)} or
+ * {@link #setRecordPositionUpdateListener(OnRecordPositionUpdateListener)} or
* {@link #setRecordPositionUpdateListener(OnRecordPositionUpdateListener, Handler)}.
* @param periodInFrames update period expressed in frames
* @return error code or success, see {@link #SUCCESS}, {@link #ERROR_INVALID_OPERATION}
@@ -716,7 +716,7 @@ public class AudioRecord
* by the recording head.
*/
void onMarkerReached(AudioRecord recorder);
-
+
/**
* Called on the listener to periodically notify it that the record head has reached
* a multiple of the notification period.
@@ -729,13 +729,13 @@ public class AudioRecord
//---------------------------------------------------------
// Inner classes
//--------------------
-
+
/**
* Helper class to handle the forwarding of native events to the appropriate listener
* (potentially) handled in a different thread
- */
+ */
private class NativeEventHandler extends Handler {
-
+
private final AudioRecord mAudioRecord;
NativeEventHandler(AudioRecord recorder, Looper looper) {
@@ -749,8 +749,8 @@ public class AudioRecord
synchronized (mPositionListenerLock) {
listener = mAudioRecord.mPositionListener;
}
-
- switch(msg.what) {
+
+ switch (msg.what) {
case NATIVE_EVENT_MARKER:
if (listener != null) {
listener.onMarkerReached(mAudioRecord);
@@ -768,8 +768,8 @@ public class AudioRecord
}
}
};
-
-
+
+
//---------------------------------------------------------
// Java methods called from the native side
//--------------------
@@ -781,50 +781,50 @@ public class AudioRecord
if (recorder == null) {
return;
}
-
+
if (recorder.mEventHandler != null) {
- Message m =
+ Message m =
recorder.mEventHandler.obtainMessage(what, arg1, arg2, obj);
recorder.mEventHandler.sendMessage(m);
}
}
-
+
//---------------------------------------------------------
// Native methods called from the Java side
//--------------------
- private native final int native_setup(Object audiorecord_this,
+ private native final int native_setup(Object audiorecord_this,
int recordSource, int sampleRate, int nbChannels, int audioFormat,
int buffSizeInBytes, int[] sessionId);
private native final void native_finalize();
-
+
private native final void native_release();
private native final int native_start(int syncEvent, int sessionId);
private native final void native_stop();
- private native final int native_read_in_byte_array(byte[] audioData,
+ private native final int native_read_in_byte_array(byte[] audioData,
int offsetInBytes, int sizeInBytes);
- private native final int native_read_in_short_array(short[] audioData,
+ private native final int native_read_in_short_array(short[] audioData,
int offsetInShorts, int sizeInShorts);
private native final int native_read_in_direct_buffer(Object jBuffer, int sizeInBytes);
-
+
private native final int native_set_marker_pos(int marker);
private native final int native_get_marker_pos();
-
+
private native final int native_set_pos_update_period(int updatePeriod);
private native final int native_get_pos_update_period();
-
+
static private native final int native_get_min_buff_size(
int sampleRateInHz, int channelCount, int audioFormat);
-
+
//---------------------------------------------------------
// Utility methods
//------------------
@@ -838,4 +838,3 @@ public class AudioRecord
}
}
-