Hi: I'm asking here because this is the most fc10-oriented list that I use and I thought someone might know the answer. I'd be happy to ask elsewhere but don't know where might be the best place. I'm trying to do shrink-to-fit with video files on fc10 after tcrequant was deprecated. vamps looks as if it will do the job but I think I need to chop off a few kb from the end of the input file first to avoid a failure exit. I can do this with dd but that's slow and file truncation would be better. I can't see a command-line truncate but since I am hacking the mythburn.py script I thought I had found the answer here, in truncate([size]) : http://www.python.org/doc/2.5.2/lib/bltin-file-objects.html I've tried that. The file size shrinks as required but the result is zero-filled. Here's some stripped-down test code: vobsize = os.path.getsize(source) write("Initial vobsize is %s bytes" % vobsize) vobsize -= 2048 f=open(source,'wb') f.truncate( vobsize ) f.close() vobsize = os.path.getsize(source) write("vobsize after truncation is %s bytes" % vobsize) Is this a known problem with python, or in its fc10 implementation? Where would be the best place to ask how to do this job? TIA John Pilkington
