Hi,
let's consider this setup: - one headless computer, 2 dvb-s cards (1 ff, 1 budget) both receiving the exactly the same set of channels - this server runs 2 vdr instances: first main one with streamdev-server handling the dvb cards, the other one with streamdev-client - both of them are running vdr-xineliboutput plugin so that i can have 2 independant outputs(TV) plugged in. - main vdr is doing the recording and also being used a http stream server for one client (occasionnaly)
The channels i'm using are those: :BBC BBC 1 London;BSkyB:10773:hC56:S28.2E:22000:5000:5001=eng,5002=NAR:5003:0:6301:2:2045:0 BBC 2 England;BSkyB:10773:hC56:S28.2E:22000:5100:5101=eng,5102=NAR:5103:0:6302:2:2045:0 BBC THREE;BSkyB:10773:hC56:S28.2E:22000:5200:5201=eng,5202=NAR:5203:0:6319:2:2045:0 BBC FOUR;BSkyB:10773:hC56:S28.2E:22000:5300:5301=eng,5302=NAR:5303:0:6316:2:2045:0 :ITV ITV1 Granada;BSkyB:10758:vC56:S28.2E:22000:2318:2319=eng:2320:0:10080:2:2044:0 ITV2;BSkyB:10758:vC56:S28.2E:22000:2314:2315=eng,2363=NAR:2317:0:10070:2:2044:0 ITV3;BSkyB:10906:vC56:S28.2E:22000:2363:2364=eng,2314=NAR:2365:0:10260:2:2054:0 ITV4;BSkyB:10758:vC56:S28.2E:22000:2305:2306=eng:2309:0:10072:2:2044:0
I have added esyslog("GetDevice(1) device #%d imp=%x ndr=%d isreceiving=%d isactual=%d isprimary=%d hasdecoder=%d devprio=%d Priority=%d providesca=%d\n",i,imp,ndr,device[i]->Receiving(),device[i]==ActualDevice(),device[i]->IsPrimaryDevice(),device[i]->HasDecoder(),device[i]->Priority(),Priority,device[i]->ProvidesCa(Channel)); before if (imp < Impact) { and added esyslog("GetDevice(2) device #%d SELECTED imp=%x\n",i,imp); before if (NeedsDetachReceivers)
first (main) vdr tunes to bbc 1: it uses the budget card: Jul 4 00:33:24 dvb vdr: [22230] switching to channel 1 Jul 4 00:33:24 dvb vdr: [22230] GetDevice(1) device #0 imp=116202 ndr=0 isreceiving=0 isactual=0 isprimary=0 hasdecoder=1 devprio=-1 Priority=0 providesca=2 Jul 4 00:33:24 dvb vdr: [22230] GetDevice(2) device #0 SELECTED imp=116202 Jul 4 00:33:24 dvb vdr: [22230] INFO: Using software decryption on card 1 Jul 4 00:33:24 dvb vdr: [22230] GetDevice(1) device #1 imp=106202 ndr=0 isreceiving=0 isactual=0 isprimary=0 hasdecoder=0 devprio=-1 Priority=0 providesca=2 Jul 4 00:33:24 dvb vdr: [22230] GetDevice(2) device #1 SELECTED imp=106202
then second vdr is launched and tuned to bbc 2: it uses the ff card: Jul 4 00:37:05 dvb vdr: [22246] GetDevice(1) device #0 imp=116202 ndr=0 isreceiving=0 isactual=0 isprimary=0 hasdecoder=1 devprio=-1 Priority=0 providesca=2 Jul 4 00:37:05 dvb vdr: [22246] GetDevice(2) device #0 SELECTED imp=116202 Jul 4 00:37:05 dvb vdr: [22246] GetDevice(1) device #1 imp=146202 ndr=0 isreceiving=0 isactual=1 isprimary=0 hasdecoder=0 devprio=-1 Priority=0 providesca=2 Jul 4 00:37:06 dvb vdr: [22246] GetDevice(1) device #0 imp=116202 ndr=0 isreceiving=0 isactual=0 isprimary=0 hasdecoder=1 devprio=-1 Priority=0 providesca=2 Jul 4 00:37:06 dvb vdr: [22246] GetDevice(2) device #0 SELECTED imp=116202 Jul 4 00:37:06 dvb vdr: [22246] GetDevice(1) device #1 imp=146202 ndr=0 isreceiving=0 isactual=1 isprimary=0 hasdecoder=0 devprio=-1 Priority=0 providesca=2 Jul 4 00:37:06 dvb vdr: [22246] Streamdev: Setting data connection to 10.0.2.10:48025
How could I adapt GetDevice so that the second vdr would use the same card ? (bbc1 and bbc2 are on the same transponder)
Because if i start a recording or the http client on itv1, one transfer mode is interrupted. It's obviously not what i want. I would have expected bbc1 and bbc2 to be handled by only one card letting the other one free for something else.
in cDevice::GetDevice (device.c): imp <<= 1; imp |= !device[i]->Receiving() || ndr; could this be replaced by: imp |= ndr;
are there cases where ndr is True and device[i]->Receiving() is false ? if device[i]->Receiving() and ndr is false i guess that would mean this device should be selected. (and maybe imp shouldn't be increased in that case)
or/and what could i change in: imp <<= 1; imp |= device[i] == ActualDevice(); so that it doesn't increase imp if ActualDevice also provides the desired channel ? (or maybe this test could be skipped in that case ?)
another ex: for a reason or another, 1st vdr tunes to bbc1 and uses first dvd card (the ff one) then second vdr wants to tune to bbc1 as well: unfortunatly the selected device is not the first one but the second one because it doesn't have a decoder. (and imp is unconditionnaly increased when the card has a decoder)
I understand selecting the appropriate device is not that quite simple. Is there a way to make this selection more modular and add a new setting to select between different GetDevice behabiors ?