本文整理汇总了Java中javax.media.Buffer.getOffset方法的典型用法代码示例。如果您正苦于以下问题：Java Buffer.getOffset方法的具体用法？Java Buffer.getOffset怎么用？Java Buffer.getOffset使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.media.Buffer的用法示例。
在下文中一共展示了Buffer.getOffset方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: mute
import javax.media.Buffer; //导入方法依赖的package包/类
/**
* Replaces the media data contained in a specific <tt>Buffer</tt> with a
* compatible representation of silence.
*
* @param buffer the <tt>Buffer</tt> the data contained in which is to be
* replaced with silence
*/
public static void mute(Buffer buffer)
{
Object data = buffer.getData();
if (data != null)
{
Class<?> dataClass = data.getClass();
final int fromIndex = buffer.getOffset();
final int toIndex = fromIndex + buffer.getLength();
if (Format.byteArray.equals(dataClass))
Arrays.fill((byte[]) data, fromIndex, toIndex, (byte) 0);
else if (Format.intArray.equals(dataClass))
Arrays.fill((int[]) data, fromIndex, toIndex, 0);
else if (Format.shortArray.equals(dataClass))
Arrays.fill((short[]) data, fromIndex, toIndex, (short) 0);
buffer.setData(data);
}
}
示例2: process
import javax.media.Buffer; //导入方法依赖的package包/类
/**
* Updates the image to be drawn on the graphics context.
*
* @param buffer the RAW image data.
* @param size the dimension of the image in the buffer.
*/
void process(Buffer buffer, Dimension size)
{
if (mis == null || !this.size.equals(size))
{
this.size = size;
mis =
new MemoryImageSource(size.width, size.height,
(int[]) buffer.getData(), buffer.getOffset(), size.width);
}
else
{
mis.newPixels((int[]) buffer.getData(), ColorModel.getRGBdefault(),
buffer.getOffset(), size.width);
}
this.repaint();
}
示例3: printDataInfo
import javax.media.Buffer; //导入方法依赖的package包/类
void printDataInfo(Buffer buffer) {
byte[] data = (byte[])buffer.getData();
try {
out.write (data, buffer.getOffset(), buffer.getLength());
} catch (IOException e) {
BrokerFactory.getLoggingBroker().logError(e);
}
for (int i = buffer.getOffset(); i < buffer.getLength(); i++) {
int n = data[i];
if (n < 0) n+=256;
if (lastSample == -1) lastSample = n;
boolean thisMove = Math.abs(n-lastSample) > minimumSilenceThreshold;
lastSample = n;
if (inSilence && thisMove) {
if (inSilence) {
inSilence = false;
fireSilenceChange(inSilence);
}
}
if ((!inSilence) && (thisMove)) {
silenceLength = 0;
}
if ((!inSilence) && (!thisMove)) {
silenceLength ++;
if (silenceLength > minimumSilenceLength) {
inSilence = true;
fireSilenceChange(inSilence);
}
}
currentIndex++;
}
if (buffer.isEOM())
System.err.println(" Got EOM!");
}
示例4: process
import javax.media.Buffer; //导入方法依赖的package包/类
public int process(Buffer inputBuffer, Buffer outputBuffer){
// == prolog
if (isEOM(inputBuffer) ) {
propagateEOM(outputBuffer);
return BUFFER_PROCESSED_OK;
}
byte [] inBuffer = (byte[])inputBuffer.getData();
int inLength = inputBuffer.getLength();
int inOffset = inputBuffer.getOffset();
int samplesNumber = inLength;
AudioFormat af = (AudioFormat) inputBuffer.getFormat();
if (enabled) {
int shiftZero = 0;
int shiftOne = 8;
if (af.getEndian() == AudioFormat.BIG_ENDIAN) {
shiftZero = 8;
shiftOne = 0;
}
// == main
int spa = ((int) af.getSampleRate() * af.getChannels()) / nPowersPerSec;
long npa = 1000000000L / nPowersPerSec;
long timeStamp = inputBuffer.getTimeStamp(); // in nanos
float average = 0;
long cspa = 0;
for (int i = 0; i < inLength; i += 2) {
short sample = (short)
(((0xFF & inBuffer[inOffset + i]) << shiftZero) |
((0xFF & inBuffer[inOffset + i + 1]) << shiftOne));
float normal = (float) sample;
average = average + normal * normal;
cspa++;
if (cspa == spa) {
cspa = 0;
average = (float) Math.sqrt((average / spa)) / 32768;
push(timeStamp, average);
timeStamp += npa;
average = 0;
}
}
}
// == epilog
inputBuffer.setData(outputBuffer.getData());
outputBuffer.setFormat(af);
outputBuffer.setData(inBuffer);
outputBuffer.setLength(inLength);
outputBuffer.setOffset(inOffset);
outputBuffer.setTimeStamp(inputBuffer.getTimeStamp());
outputBuffer.setFlags(inputBuffer.getFlags());
return BUFFER_PROCESSED_OK;
}