import java.nio.ByteBuffer; public class ByteBufferToByteArray { public static void main(String[] args) { // 创建一个ByteBuffer并填充数据 ByteBuffer byteBuffer = ByteBuffer.allocate(10); for (int i = 0; i < 10; i+
public static byte[] intToByteArray(int value) { byte[] b = new byte[4]; for (int i = 0; i < 4; i++) { int offset = (b.length - 1 - i) * 8; b[i] = (byte) ((value >>> offset) & 0xFF); } return b; } /** * Convert the byte array to an int starting fro...
// 将数据转换为YUV420格式的ByteArrayintwidth=640;// 视频宽度intheight=480;// 视频高度byte[]yuv420ByteArray=newbyte[width*height*3/2];// 创建一个YUV420格式的数组// 将数据分别放入Y、U、V分量中System.arraycopy(bufferArray,0,yuv420ByteArray,0,width*height);// Y分量System.arraycopy(buffer...
public byte[] toByteArray() { byte[] fullArray = new byte[516]; ByteBuffer packetNumBuffer = ByteBuffer.allocate(2); packetNumBuffer.putShort(this.packetNum); byte[] packetNumArray = packetNumBuffer.array(); ByteBuffer authKeyBuffer = ByteBuffer.allocate(2); authKeyBuffer.putShort(this.aut...
byteBuffer){byte[]bytesArray=newbyte[byteBuffer.remaining()];byteBuffer.get(bytesArray,0,bytesArray...
HRESULTConvertByteBufferToByteArray( [in] LPBYTEBUFFER pbyBuffer, [out] LPBYTEARRAY *ppArray ); Parâmetros pbyBuffer[in] Ponteiro para o objetoIStreama ser convertido. ppArray[out] Ponteiro para a matriz de bytes a serem retornados.
Mapped byte buffers are created via the {@link java.nio.channels.FileChannel#map FileChannel.map} method. This class extends the {@link ByteBuffer} class with operations that are specific to memory-mapped file regions. 翻译过来其实就是一个文件的内存映射,通过调用FileChannel.map方法创建,扩展了ByteBuf...
ByteBufferwrap(byte []array,intoffset,intlength) //把一个byte数组或byte数组的一部分包装成ByteBuffer。 2. ByteBuffer定义了一系列get和put操作来从中读写byte数据,如下面几个: byteget() ByteBufferget(byte []dst) byteget(intindex) ByteBufferput(byteb) ...
byte[] array:需要映射成 ByteBuffer 的原生字节数组 array。 int offset:用于指定映射之后 Buffer 的 position。 position = offset。注意此处的 offset 并不是 Buffer 视图中的 offset 。 int length:用于计算映射之后 Buffer 的 limit。 limit = offset + length,capacity = array,length。 映射后的 ByteBuffer...
importjava.nio.ByteBuffer;publicclassHexConverter{publicstaticvoidmain(String[]args){StringhexString="48656C6C6F20576F726C64";// "Hello World"的16进制表示byte[]bytes=hexStringToByteArray(hexString);for(byteb:bytes){System.out.print(b+" ");}}publicstaticbyte[]hexStringToByteArray(Strings){int...