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WavPack v5.0, rewritten, just released (Announce)

posted by RayeR(R) Homepage, CZ, 20.12.2016, 11:54

I managed to make a native DJGPP port of Wavpack 5.0 (after messing with autoshit and configure - this steps I had to do under Linux), get it here
I also found and fixed a bug in WVUNPACK after some years. The program was accidentally deleting the decompressed file just after it was done. I found, there is a check if created file length is zero, then there was some problem and delete the file. And guess what, it returned zero. So I tracked the DoGetFileSize() in utils.c module and found there are separate Win32 and Unix code. The DJGPP follows unix path with code

    struct stat statbuf;

    if (!hFile || fstat (fileno (hFile), &statbuf) || !(statbuf.st_mode & S_IFREG))
        return 0;

    return (int64_t) statbuf.st_size;

It is probably wrong or incompletly implemented in DJGPP. So I made a new DJGPP section where I used old good filelength(fileno(hFile) function, even we have 64-bit lfilelength() version in DJGPP 2.05 but I don't know if it supports >2GB files, maybe under NTVDM on NTFS... Anyway it works now for <2GB files :) I will also try to recompile FFMPEG with new wavpack library including the modified sources.

DOS gives me freedom to unlimited HW access.


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