[Libburn] Progress details

[Derek Foreman]

On Wed, 3 Dec 2003, Tiago Cogumbreiro wrote:

> On Qua, 2003-12-03 at 23:32, Derek Foreman wrote:
> > On Wed, 3 Dec 2003, Tiago Cogumbreiro wrote:
> >
> > > Hi again,
> > > I've been playing around with your burniso.c example and i was wondering
> > > how to work with progress, i was trying to use it like this:
> > >
> > > 	struct libburn_progress prog;
> > > 	int ret = libburn_drive_get_busy(drive, &prog);
> > > 	if(ret) {
> > > 		printf("Session: %d/%d ", prog.session, prog.sessions);
> > > 		printf("Track: %d/%d " , prog.track, prog.tracks);
> > > 		printf("Index: %d/%d " , prog.index, prog.indices);
> > > 		printf("Abs Sectors: %d/%d ", prog.abs_sector, prog.abs_sectors);
> > > 		printf("Rel Sectors: %d/%d ", prog.rel_sector, prog.rel_sectors);
> > > 	}
> > >
> > > This is the output i get:
> > > S: -1073743820/1078199456 T: 1078312456/1073836040 I: 0/-1073743864 AS:
> > > 1078312456/134532312 RS: 0/-1073743848
> > > S: -1073743820/1078199456 T: 1078312456/1073836040 I: 0/-1073743864 AS:
> > > 1078312456/134532312 RS: 0/-1073743848
> > > S: -1073743820/1078199456 T: 1078312456/1073836040 I: 0/-1073743864 AS:
> > > 1078312456/134532312 RS: 0/-1073743848
> > > (...)
> > >
> > > My question is the following, is the progress implemented or am i using
> > > it wrong? If it is which operations supported and which don't?
> > >
> > > Thank you.
> >
> >
> > Here's the current code for libburn_drive_get_busy
> > int libburn_drive_get_busy(struct drive *d, struct libburn_progress *p)
> > {
> >         if (p) {
> >                 /* this is where we do stuff! */
> >         }
> >         return d->busy != LIBBURN_BUSY_NO;
> > }
> >
> > heh.
> >
> > On the positive side, you're using it exactly as I'd intended, so when I
> > finally write that code it'll suddenly work right. :)
> Lol :)
> Btw, what do the progress field values mean?
> What's the difference between relative and absolute sectors? And what is
> the difference between the singular and plural fields?

sessions = total number of sessions on the disc (does not change
throughout burn)
session = current session
I don't know whether tracks should be total number of tracks in the
current session or on the disc.  I hadn't given that too much thought.

absolute sectors would be "in the whole burn", and relative sectors would
be "since the start of the current track"

a bit of information overkill probably.  I don't know how much app writers
actually want to display.

> I can try to implement this if you want, i already did a progress bar in
> java for blanking a CD so i know how to get the progress in a CD
> blanking operation, the writing operation is simpler so there shouldn't
> be any problem with that either.

That would be great. :)