On Sat, Jan 05, 2008 at 06:53:48PM +0100, Reinhard Nissl wrote:
Hello,
with the last patch, VDR refuse to tune to any DVB-S2 channels. I guess that VDR thinks all my card are only DVB-S ones. I get "Channel not available!" on all DVB-S2 channels.
Any maybe not directly interesting, but with this patch, graphlcd make vdr segault at start.
Thanks,
The attached version implements this behavior now. You may want to experiment a bit with the decision logic as explained below.
The decision is based on the number of modulation systems a card provides. For example, my NOVA-S provides one (DVB-S) and my SkyStar HD provides three (DVB-S, DVB-DSS, DVB-S2).
The decision logic is implemented in cDevice::GetDevice(), so have a look into device.c. After applying the patch, you'll find two lines in that function marked with comments like /*1*/ and /*2*/, and the latter one was disabled by a line comment.
In my scenario with just the above cards and vdr-xine as software device, watching a channel requires VDR to operate in transfer mode. Therefore it selects a device which provides for example a DVB-S channel. The patched version will choose the NOVA-S with either implementation /*1*/ or /*2*/.
Let's then start a DVB-S recording on a different transponder. When implementation /*2*/ would be active, VDR would choose the SkyStar HD, as the NOVA-S is claimed by transfer mode. Then, try to switch to a DVB-S2 channel. It wouldn't work, as the SkyStar HD would be claimed by a DVB-S recording.
That's why I've chosen implementation /*1*/ as default. For the above scenario, starting a DVB-S recording on a different transponder will choose the NOVA-S and kick off transfer mode. Then VDR will look for a card to set up transfer mode again and it will choose the only remaining card, the SkyStar HD. If you then try to switch to a DVB-S2 channel, it will work as the SkyStar HD is not claimed by a recording.
The patch is incremental to the original dvbs2 patch from yesterday, i. e. you can simply apply it to your already patched VDR.
Bye.
Dipl.-Inform. (FH) Reinhard Nissl mailto:rnissl@gmx.de
--- ../vdr-1.5.12-dvbs2-other/device.c 2008-01-01 22:55:18.000000000 +0100 +++ device.c 2008-01-05 18:06:15.000000000 +0100 @@ -359,6 +359,21 @@ cDevice *cDevice::GetDevice(int Index) return (0 <= Index && Index < numDevices) ? device[Index] : NULL; }
+inline int GetClippedModulationSystemCount(int AvailableBits, cDevice *Device) +{
- int ModulationSystemCount = Device->ModulationSystemCount();
- int MaxModulationSystemCount = 1 << AvailableBits;
- if (ModulationSystemCount > MaxModulationSystemCount) {
esyslog("ERROR: device %d supports %d modulation systems but cDevice::GetDevice() currently only supports %d modulation systems which should be fixed", Device->CardIndex() + 1, ModulationSystemCount, MaxModulationSystemCount);
ModulationSystemCount = MaxModulationSystemCount;
}
- else if (ModulationSystemCount <= 0) {
esyslog("ERROR: device %d reported an invalid number (%d) of supported modulation systems. The device should be fixed to return at least 1", Device->CardIndex() + 1, ModulationSystemCount);
ModulationSystemCount = 1;
}
- return ModulationSystemCount;
+}
cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView) { // Collect the current priorities of all CAM slots that can decrypt the channel: @@ -408,11 +423,13 @@ cDevice *cDevice::GetDevice(const cChann imp <<= 1; imp |= LiveView ? !device[i]->IsPrimaryDevice() || ndr : 0; // prefer the primary device for live viewing if we don't need to detach existing receivers imp <<= 1; imp |= !device[i]->Receiving() && (device[i] != cTransferControl::ReceiverDevice() || device[i]->IsPrimaryDevice()) || ndr; // use receiving devices if we don't need to detach existing receivers, but avoid primary device in local transfer mode imp <<= 1; imp |= device[i]->Receiving(); // avoid devices that are receiving +/*1*/ imp <<= 2; imp |= GetClippedModulationSystemCount(2, device[i]) - 1; // avoid cards which support multiple modulation systems imp <<= 1; imp |= device[i] == cTransferControl::ReceiverDevice(); // avoid the Transfer Mode receiver device imp <<= 8; imp |= min(max(device[i]->Priority() + MAXPRIORITY, 0), 0xFF); // use the device with the lowest priority (+MAXPRIORITY to assure that values -99..99 can be used) imp <<= 8; imp |= min(max((NumUsableSlots ? SlotPriority[j] : 0) + MAXPRIORITY, 0), 0xFF); // use the CAM slot with the lowest priority (+MAXPRIORITY to assure that values -99..99 can be used) imp <<= 1; imp |= ndr; // avoid devices if we need to detach existing receivers imp <<= 1; imp |= device[i]->IsPrimaryDevice(); // avoid the primary device +///*2*/ imp <<= 2; imp |= GetClippedModulationSystemCount(2, device[i]) - 1; // avoid cards which support multiple modulation systems 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 --- ../vdr-1.5.12-dvbs2-other/device.h 2007-10-21 11:21:52.000000000 +0200 +++ device.h 2008-01-05 17:22:25.000000000 +0100 @@ -224,6 +224,10 @@ public: ///< function itself actually returns true. ///< The default implementation always returns false, so a derived cDevice ///< class that can provide channels must implement this function.
- virtual int ModulationSystemCount() const { return 0; }
///< Returns the number of modulation systems the device supports.
///< The default implementation always returns 0, so a derived cDevice
virtual bool IsTunedToTransponder(const cChannel *Channel); ///< Returns true if this device is currently tuned to the given Channel's ///< transponder.///< class that can provide channels must implement this function.
--- ../vdr-1.5.12-dvbs2-other/dvbdevice.c 2008-01-01 22:55:18.000000000 +0100 +++ dvbdevice.c 2008-01-05 17:36:36.000000000 +0100 @@ -406,6 +406,7 @@ cDvbDevice::cDvbDevice(int n) { ciAdapter = NULL; dvbTuner = NULL;
- modulationSystemCount = 0; frontendType = DVBFE_DELSYS_DUMMY; spuDecoder = NULL; digitalAudio = false;
@@ -468,8 +469,14 @@ cDvbDevice::cDvbDevice(int n) // We only check the devices that must be present - the others will be checked before accessing them://XXX
if (fd_frontend >= 0) {
if (ioctl(fd_frontend, DVBFE_GET_DELSYS, &frontendType) >= 0)
if (ioctl(fd_frontend, DVBFE_GET_DELSYS, &frontendType) >= 0) {
// determine number of supported modulation systems by counting the bits
for (int i = 0; i < 32; i++) {
if (frontendType & (1u << i))
modulationSystemCount++;
} dvbTuner = new cDvbTuner(fd_frontend, CardIndex(), frontendType);
} else LOG_ERROR; }
@@ -798,7 +805,13 @@ bool cDvbDevice::ProvidesSource(int Sour
bool cDvbDevice::ProvidesTransponder(const cChannel *Channel) const {
- return ProvidesSource(Channel->Source()) && (!cSource::IsSat(Channel->Source()) || !Setup.DiSEqC || Diseqcs.Get(Channel->Source(), Channel->Frequency(), Channel->Polarization()));
- if (!ProvidesSource(Channel->Source()))
return false; // doesn't provide source
- if (!cSource::IsSat(Channel->Source()))
return true; // source is sufficient for non sat
- if (!(frontendType & Channel->ModulationSystem()))
return false; // requires modulation system which frontend doesn't provide
- return !Setup.DiSEqC || Diseqcs.Get(Channel->Source(), Channel->Frequency(), Channel->Polarization());
}
bool cDvbDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *NeedsDetachReceivers) const @@ -807,7 +820,7 @@ bool cDvbDevice::ProvidesChannel(const c bool hasPriority = Priority < 0 || Priority > this->Priority(); bool needsDetachReceivers = false;
- if (ProvidesSource(Channel->Source())) {
- if (ProvidesTransponder(Channel)) { result = hasPriority; if (Priority >= 0 && Receiving(true)) { if (dvbTuner->IsTunedTo(Channel)) {
--- ../vdr-1.5.12-dvbs2-other/dvbdevice.h 2008-01-01 22:55:18.000000000 +0100 +++ dvbdevice.h 2008-01-05 17:29:49.000000000 +0100 @@ -35,6 +35,7 @@ public: ///< Must be called before accessing any DVB functions. ///< \return True if any devices are available. private:
- int modulationSystemCount; dvbfe_delsys frontendType; int fd_osd, fd_audio, fd_video, fd_dvr, fd_stc, fd_ca;
protected: @@ -66,6 +67,7 @@ public: virtual bool ProvidesSource(int Source) const; virtual bool ProvidesTransponder(const cChannel *Channel) const; virtual bool ProvidesChannel(const cChannel *Channel, int Priority = -1, bool *NeedsDetachReceivers = NULL) const;
- virtual int ModulationSystemCount() const { return modulationSystemCount; } virtual bool IsTunedToTransponder(const cChannel *Channel);
protected: virtual bool SetChannelDevice(const cChannel *Channel, bool LiveView);
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