Regression from a fix in VDR 1.4.1: Needless blocking of CAM DVB cards

Message ID 494E5E86.7030109@gmx.de
State New
Headers

Commit Message

Udo Richter Dec. 21, 2008, 3:19 p.m. UTC
  On 01.12.2008 16:02, Jörn Reder wrote:
>> Jörn Reder wrote:
>>> With vdr 1.4 this worked perfectly, now with 1.6 VDR always prefers my
>>> Budget CI card for recordings so I can't view any Pay TV when a
>>> recording is active.
>> The rules that were added with 1.4.1-4 are still present, so they
>> probably got over-ruled by something else.
>
> I can reproduce it this way:
>
> - watching a non pay TV channel (e.g. ARD)
> - manually start a recording on it (go to menu, hit RED button)
> - now switching to a pay TV channel is impossible

I've attached a debug patch for impact logging. It dumps the reasons why 
VDR used a certain device to the console. (replace printf with isyslog 
if you prefer the log files.)

Output looks like this:

Impact:   LiDeReTrPriPrcNdPrCiDeDc
Dev  0.00: 0 0 0 0 62 63 1 1 1 1 0
Dev  1.00: 0 0 0 0 62 63 0 0 1 0 0
Device  1.00 wins

The first difference decides, lower value wins. In this case, the second 
device wins because its Nd is 0. Thats the 'needs detach receivers' rule.

Run the above test case and post the corresponding output here.


Cheers,

Udo
  

Comments

Jörn Reder Dec. 21, 2008, 7:35 p.m. UTC | #1
Udo Richter wrote:

> I've attached a debug patch for impact logging. It dumps the reasons why 
> VDR used a certain device to the console. (replace printf with isyslog 
> if you prefer the log files.)
> [...]

Thanks for this patch, but I don't know when I can test it. I downgraded
my production vdr to 1.4, because I had more critical issues with 1.6 
regarding pay TV. With vdr 1.6 I often "lost" my CAM card completely 
being unable to receive encrypted channels at all, even when no 
recording was started. I have no idea which conditions led to this. A 
vdr restart solved it temporarily, but programming pay TV timers was a 
lottery and the "woman acceptance factor" fell down to 0.0 (but my AF as
well... :)

So I need to compile a vanilla 1.6 to run besides my production 1.4. 
Probably I find some time to do this around x-mas. I'll post the 
results.

Regards,

Jörn
  

Patch

--- device.c.orig	2008-12-21 15:46:20.000000000 +0100
+++ device.c	2008-12-21 15:51:44.000000000 +0100
@@ -384,6 +384,8 @@ 
   cCamSlot *s = NULL;
 
   uint32_t Impact = 0xFFFFFFFF; // we're looking for a device with the least impact
+  printf("Impact:   LiDeReTrPriPrcNdPrCiDeDc\n");
+  int besti=0, bestj=0;
   for (int j = 0; j < NumCamSlots || !NumUsableSlots; j++) {
       if (NumUsableSlots && SlotPriority[j] > MAXPRIORITY)
          continue; // there is no CAM available in this slot
@@ -419,10 +421,29 @@ 
              imp <<= 1; imp |= NumUsableSlots ? 0 : device[i]->HasCi();                                              // avoid cards with Common Interface for FTA channels
              imp <<= 1; imp |= device[i]->HasDecoder();                                                              // avoid full featured cards
              imp <<= 1; imp |= NumUsableSlots ? !ChannelCamRelations.CamDecrypt(Channel->GetChannelID(), j + 1) : 0; // prefer CAMs that are known to decrypt this channel
+
+             #define bitextract(u, bit, len) (((u) >> (bit)) & ((1 << (len)) - 1))
+             printf("Dev %2i.%02i: %i %i %i %i %02x %02x %i %i %i %i %i\n",
+                    i,
+                    j,
+                    bitextract(imp, 24, 1),
+                    bitextract(imp, 23, 1),
+                    bitextract(imp, 22, 1),
+                    bitextract(imp, 21, 1),
+                    bitextract(imp, 13, 8),
+                    bitextract(imp, 5, 8),
+                    bitextract(imp, 4, 1),
+                    bitextract(imp, 3, 1),
+                    bitextract(imp, 2, 1),
+                    bitextract(imp, 1, 1),
+                    bitextract(imp, 0, 1));
+
              if (imp < Impact) {
                 // This device has less impact than any previous one, so we take it.
                 Impact = imp;
                 d = device[i];
+                besti=i;
+                bestj=j;
                 NeedsDetachReceivers = ndr;
                 if (NumUsableSlots)
                    s = CamSlots.Get(j);
@@ -433,6 +454,7 @@ 
          break; // no CAM necessary, so just one loop over the devices
       }
   if (d) {
+     printf("Device %2i.%02i wins\n", besti,bestj);
      if (NeedsDetachReceivers)
         d->DetachAllReceivers();
      if (s) {