[XviD-devel] Fw: libxvidcore decompression

[Dark Sylinc]

> 2. determine the buffer size to allocate for the
> read stream buffer through
>     fseek(fpi,0,SEEK_END);
>     long lFileSize = ftell(fpi);
>     unsigned char *buffer = NULL;
>     buffer = (unsigned char *) malloc (lFileSize);
>     int useful_bytes = fread(buffer, 1, lFileSize,
> fpi);
>     if(useful_bytes==NULL)
>           Msg(TEXT("Errorreading to file"));
> 

You're missing a call. Everything else seems fine.
You're going to the end of the file with
"fseek(fpi,0,SEEK_END);" to guess the filesize.
However, you don't rewind it. There is a specific
function called something like rewind(fpi), but using 
"fseek(fpi,0,SEEK_SET);" will do it.

Your code should look like this:
>     fseek(fpi,0,SEEK_END);
>     long lFileSize = ftell(fpi);
     fseek(fpi,0,SEEK_SET);  //<---Note here!
(anywhere before calling fread)
>     unsigned char *buffer = NULL;
>     buffer = (unsigned char *) malloc (lFileSize);
>     int useful_bytes = fread(buffer, 1, lFileSize,
> fpi);
>     if(useful_bytes==NULL)
>           Msg(TEXT("Errorreading to file"));


Cheers
Dark Sylinc

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