04-13-2011
Quote:
Originally Posted by
disaster
The dd function you posted would actually copy three times a junk of 1024 bytes, ie. 3K bytes in total.
But I understand your question in such a way that you want to read 3 bytes in at once and do that same 300 times, right?
memcpy() is not the right function when you want to store it into a file. You simply need to store 3 bytes in a buffer of char buf[3]; and then use fwrite to write this buffer into a file. Wrap a loop around it so it gets done until 1024bytes are written and you're done
Yes, you are absolutely right!! Thanks a ton for the hint
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LEARN ABOUT CENTOS
afseekmisc
AFREADMISC(3) AFREADMISC(3)
NAME
afReadMisc, afWriteMisc, afSeekMisc - access miscellaneous metadata in an audio file
SYNOPSIS
#include <audiofile.h>
int afReadMisc (AFfilehandle file, int miscid, void *buffer, int nbytes);
int afWriteMisc (AFfilehandle file, int miscid, const void *buffer, int nbytes);
int afSeekMisc (AFfilehandle file, int miscid, int offbytes);
DESCRIPTION
afReadMisc reads up to nbytes from the miscellaneous data chunk identified by miscid in file.
afWriteMisc writes up to nbytes to the miscellaneous data chunk identified by miscid in file.
afSeekMisc changes the current offset within the miscellaneous data chunk identified by miscid to the offset offbytes.
RETURN VALUE
afReadMisc returns the number of bytes read from the specified miscellaneous chunk into the buffer referred to by buffer.
afWriteMisc returns the number of bytes written to the specified miscellaneous chunk from the buffer referred to by buffer.
afSeekMisc returns the new location of the logical data pointer as measured as an offset in bytes from the beginning of the miscellaneous
chunk's data area.
ERRORS
afReadMisc, afWriteMisc, and afSeekMisc can produce the following error codes:
o AF_BAD_READ
o AF_BAD_WRITE
o AF_BAD_MISCSEEK
o AF_BAD_MISCID
o AF_BAD_TRACKID
o AF_BAD_FILEHANDLE
AUTHOR
Michael Pruett <michael@68k.org>
Audio File Library 0.3.6 03/06/2013 AFREADMISC(3)