Parsing/extracting from a binary QByteArray

[marcvanriet]

If the contents of the 30-byte chunks is fixed as you indicate, and if the endianess is the same, then Santosh's solution is the way to go.

Otherwise you must encode it like you did, but you can write it more compact like :

unsigned char *pData = (unsigned char*)chunk.data();
quint32 long_data1 = pData[0] | ((quint32)pData[0+1]<<8) | ((quint32)pData[0+2]<<16) | ((quint32)pData[0+3]<<24);

unsigned char *pData = (unsigned char*)chunk.data();
quint32 long_data1 = pData[0] | ((quint32)pData[0+1]<<8) | ((quint32)pData[0+2]<<16) | ((quint32)pData[0+3]<<24);

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And to make it more readable, create a #define to extract the data, subsituting the '0' for the parameter in your define. And create different #defines for different data types.

As a sidenote... I don't think that parsing such small chunks of data in a separate thread will speed up things. Possibly the effort of task switching is greater than the effort of parsing.

Best regards,
Marc