[vdr] Re: Playing DVD ?

["Dr. Werner Fink" <werner@suse.de>]

On Tue, Aug 26, 2003 at 12:48:52PM +0200, Luis Javier Martínez wrote:
> Hi, Klaus
> > I did watch a few DVDs recently, using the DVD plugin.
> > Since I did only very limited menu access and no FFwd or
> > FRew, just playing the movie and the special features
> > worked acceptably.
> In june Daniel Saez and me where checking the state and problems of the 
> dvd-plugin, most navigation issues where related to libdvdnav and were not 
> fault of the plugin. We fixed many of them, but as there where some other 
> related to still pictures we didn't issue a patch.
> >
> > The major problems I see are the sometimes incorrectly displayed
> > still pictures for menus, and the complete dropout during FFwd/FRew.
> > Sure I'd appreciate if somebody would fix this, but that means
> > somebody would have to have time and knowledge to do it...
> The problem of still pictures was fault of both the dvb driver and the plugin 
> code. We fixed the problem at the dvd plugin code but no one was interested 
> on the patch (search Daniel's mails to the list "dsaez@iti.upv.es").
> The problem at the driver must be a firmware one as we have checked the still 
> picture routines and them seem OK. When you make use of this routines you can 
> feed the first still picture but trying to show a secong one has 
> unpredictable results.

Try the patch:

------------------------------------------------------------------------------
--- DVB/driver/av7110/av7110.c
+++ DVB/driver/av7110/av7110.c	Tue Aug 26 13:19:02 2003
@@ -4248,16 +4248,16 @@
                 if (AV_StartPlay(av7110, RP_VIDEO) < 0) {
 			return -EBUSY;
 		}
-                n=MIN_IFRAME/len+1;
         }
+	n=MIN_IFRAME/len+1;
 
 	/* FIXME: nonblock? */
 	dvb_play(av7110, iframe_header, sizeof(iframe_header), 0, 1, 0);
 
-	for (i=0; i<n; i++)
-                dvb_play(av7110, buf, len, 0, 1, 1);
-
-	dvb_filter_ipack_flush(&av7110->ipack[1]);
+	for (i=0; i<n; i++) {
+		dvb_play(av7110, buf, len, 0, 1, 1);
+		dvb_filter_ipack_flush(&av7110->ipack[1]);
+	}
 	return 0;
 }
 
------------------------------------------------------------------------------

... you may also enable the define VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES
within dvbdevice.c of VDR.

IMHO it is a long standing problem.  Without this patch you get a
really smooth still picture the first time ... but e.g. moving cut
marks is sometime anoying.  With this patch the still picture is always
uptodate but you may see the picture a bit wobbling at sharp lines.


      Werner


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