英文:
Java Different Methods Reading 32 Bit Float From InputStream
问题
我在从API接收到的InputStream中读取32位浮点值时遇到了问题。
API文档中描述的文件格式如下：
> 宽度 x 高度 x 帧数 32位浮点压力值，按帧存储，按行主序方式排列
我目前是这样读取浮点值的：
DataInputStream dis = new DataInputStream(is);
while (dis.available() > 0) {
byte[] float_val = new byte[4];
dis.readFully(float_val);
float f = ByteBuffer.wrap(float_val).order(ByteOrder.LITTLE_ENDIAN).getFloat();
System.out.println(f);
}
由于文档中没有提到字节顺序，我假设它是小端字节顺序，因为我也测试过大端字节顺序，但从中获得的值太混乱，无法有效使用。然而，当我使用小端字节顺序显示这些值时，我的同事（需要从InputStream获取值的同事）指出我打印出的值在使用方面“过低”。我现在想问，你们是否有任何关于在Java中另一种读取32位浮点值的方法的想法？
英文:
I have a problem reading 32Bit Float Values from an InputStream recieved from an API.
The File-Format ist described in the API Documentation as:
> width x height x nbFrames 32-bit floating point pressure values, stored frame by frame and in row-major fashion
I´m currently Reading the Float Values like this
DataInputStream dis = new DataInputStream(is);
while (dis.available() > 0) {
byte[] float_val = new byte[4];
dis.readFully(float_val);
float f = ByteBuffer.wrap(float_val).order(ByteOrder.LITTLE_ENDIAN).getFloat();
System.out.println(f);
}
Since the ByteOrder is not mentioned in the Documentation i assumed it will be Little Endian since I tested with Big Endian aswell but the Value i recived from this where way too messy to be valid.
However, when I showed the Values with Little Endian Byteorder my Coworker who needs the Values from the InputStream he pointed out the values I get printed are "too low" in the sense of usage.
I´m asking now do you guys have any Idea for another approach reading 32 Bit Float Values in Java?
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