type bytes. about protobuf.js HOT 6 CLOSED

Binary data is represented by a ByteBuffer.js object. When setting something to a binary field like '55' in this case, it will be wrapped inside of a ByteBuffer. This is done because, in this case, proper decoding of UTF8 characters to the actual bytes must be performed. To read it back:

var str = msg.samples.readUTF8StringBytes(msg.samples.length);

If you actually intend to transfer string values, try using the string type instead.

from protobuf.js.

Thanks,but I got error
Error: Cannot read uint8 from ByteBuffer(offset=10,markedOffset=-1,length=12,capacity=12) at 12: Capacity overflow

from protobuf.js.

Can you post me the output of executing samples.printDebug() at that point? Are you using the latest versions of ProtoBuf.js and ByteBuffer.js? If so, the cause might be that it's not a valid UTF8 character at that exact position. Are you sure that it is UTF8 data?

from protobuf.js.

ByteBuffer(offset=10,markedOffset=-1,length=12,capacity=12)

A8 06 0C C2 07 01 35 92 08 02<35 35> ......5...55

code:
var msg = new Message({frameNumber:12,
modulationTypes:"5",
samples:"55"
});
var m = msg.toArrayBuffer();
var m1 = Message.decode(m);
console.log(m1);
console.log(m1.samples.printDebug());
var str = m1.samples.readUTF8StringBytes(m1.samples.length);

I use latest ByteBuffer.min.js and ProtoBuf.min.js

from protobuf.js.

My fault, try:

var str = msg.samples.readUTF8StringBytes(msg.samples.remaining());

With this, it should read the remaining 2 bytes as UTF8.

However, it looks like the debug output is truncated as it does not show the "55" as a hex value as well but I guess it's just a matter of pasting it.

from protobuf.js.

Thanks.
I got 55.

from protobuf.js.