[vdr] Re: DvbDevice::GrabImage killing vdr?

[Helmut Auer <vdr@helmutauer.de>]

Guido Fiala wrote:

> On Friday 21 May 2004 13:14, Jan Ekholm wrote:
>  
> > On Thu, 20 May 2004, Guido Fiala wrote:
> >    
> > > Has someone else also experienced that problem?
> > >
> > > ASAP a call to this function is made (e.g using the screenshot-plugin)
> > > vdr dies, no message in syslog, looks like segfault...
> > >      
> > Yes, I've seen it. Doing a SVDRP GRAB command can freeze VDR for a while,
> > but it usually last less than one minute so the watchdog doesn't get
> >    
> That must be something different - vdr crashes really instantly now.
> (using dvb-kernel at least)
>
> As my kvdr grabs just fine from the _same_ video-device i assume the 
> GrabImage-function is broken in vdr, if the failure is not that obvious to 
> fix i might try to re-import the GrabImage function from kvdr to vdr...
>
> Never had grey images either.
>
> Guido
>
>
>  
Hi,
I had the same problem which was caused by kernel 2.6 and a little error 
implemented by the Komplettpatch.
You can try the following patch.
Bye
Helmut

--- dvbdevice.c.org    2004-02-13 14:01:58.000000000 +0100
+++ dvbdevice.c    2004-02-13 14:07:26.000000000 +0100
@@ -637,7 +637,36 @@
     }
     fclose(f);
   }
-    fclose(f);
+    if( f == (FILE *)NULL ) // if not found check for sysfs structure
+    {
+       ofs = -1;
+       while (1) {
+         snprintf(buffer, sizeof buffer, 
"/sys/class/video4linux/video%d/name", ++ofs);
+         if ((f = fopen(buffer, "r")) == (FILE *)NULL) { // does not 
exist?
+           ofs = 0;
+           break;
+         }
+         if (fgets(buffer, sizeof buffer, f)) {
+           if (strstr(buffer, "av7110")) // found the _first_ DVB card 
- works only for AV7110 cause I don't know it better
+           {
+              break;
+           }
+         }
+         else {
+           ofs = 0;
+           break;
+         }
+         fclose(f);
+       }
+       if( f != (FILE *)NULL ) // if not found check for sysfs structure
+       {
+          fclose(f);
+       }
+    }
+    else
+    {
+       fclose(f);
+    }
 }
 snprintf(buffer, sizeof(buffer), "%s%d", DEV_VIDEO, CardIndex() + 
ofs);  int videoDev = open(buffer, O_RDWR);
 if (videoDev < 0)




--
Helmut Auer, helmut@helmutauer.de 



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