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(Redirected from Dvswitch howto)
jw, Mon Feb 27 21:47:15 UTC 2012 Using a Canopus Twinpact 100 ---------------------------- ## on all involved machines do: osc -Apm in dvswitch http://pmbs.links2linux.org/download/home:/jnweiger/openSUSE_12.1 dvswitch 0.8.3.6-9.1 ## on the twinpact machine, (and on all remote camera capture machines) ## replace 127.0.0.1 with the IP Address of the one machine that runs ## the dvswitch gui (known as the mixer) sudo vi /etc/dvswitchrc MIXER_HOST=127.0.0.1 ## connect all involved machines to the mixer with dedicated ethernet cables. ## use gigabit, if more than one twinpact machine needs to be connected. # Check the dipswitches at the bottom of the twinpact. # A3 must be on to enable the remote control # B7 (DVCAM/DV) does not seem to matter. -> switch on twinpact -> hit [INPUT SELECT] twice to select RGB input. # twinpact remembers input selection and overscan mode # across power-loss. nice. ## on the twinpact machine: dmesg | grep firewire firewire_ohci: isochronous cycle inconsistent firewire_core: created device fw1: GUID 002011010f003159, S400 firewire_core: phy config: card 0, new root=ffc1, gap_count=5 firewire_core: IRM is not 1394a compliant, making local node (ffc0) root. firewire_core: phy config: card 0, new root=ffc0, gap_count=5 # this only succeeds, when the mixer is up and running sh -c 'while true; do sudo dvsource-firewire -t; sleep 2; done' ## on the storage machine (usually the mixer itself) sh -c 'while true; do dvsink-files /tmp/dvswitch/test-%F-%T; sleep 2; done' ## on the mixer machine: dvswitch & -> if the twinpact video signal shows a fat black border, try the -> Twinpact remote control -> [OverScan] # a gray half-translucent border is okay. # It is only onscreen, but not recorded. -> Hit [Record] -> be happy. -> regularly check disk space. ## CAUTION: # dvsink-files just stops writing if it runs out of space. # no error messages nothing on the gui. # A dvswitch videostream takes a bandwithd of ca. 3.7 Mbytes/sec. # Thus one twinpact + one camera + one dvsink-files together # consume ca. 11Mb/s # dvswitch itself consumes ca 50% of a 1.6Ghz intel 32bit CPU, # together with one source and one sink, the load average # on a Lenovo X60s is ca 0.7 -- (including possile 0.3 from # a firefox with a bloody flash player showing advertisements). # -> quite acceptable.