Date: Thu, 10 Nov 2005 16:23:52 +0000 From: Dieter <freebsd@sopwith.solgatos.com> To: freebsd-firewire@freebsd.org, freebsd-multimedia@freebsd.org Subject: Sending DV over firewire gives dropouts - VT6306 vs NEC uPD72871/2 Message-ID: <200511110023.AAA09973@sopwith.solgatos.com>
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> AMD64 running FreeBSD 6.0 beta3. > Canon DV NTSC camcorder connected via firewire. > > Playing a tape and recording it on the computer via > > fwcontrol -R filename.dv > > appears to work fine. > > Sending the video back to the camcorder via > > fwcontrol -S filename.dv > > mostly works, but every 1.5-2 seconds or so I get a momentary > dropout of both video and audio. I get the same dropouts > with a dv file created by "fwcontrol -R" and with dv files created > by ffmpeg. New info: The controller giving the dropouts is a VT6307 (reported as VT6306 ?). I added a firewire card with NEC uPD72871/2, and using this firewire controller the DV files play back without the dropouts. fwohci0: <VIA Fire II (VT6306)> port 0xa800-0xa87f mem 0xfdffe000-0xfdffe7ff irq 10 at device 6.0 on pci1 fwohci0: OHCI version 1.10 (ROM=1) fwohci0: No. of Isochronous channels is 4. fwohci0: Phy 1394a available S400, 2 ports. fwohci0: Link S400, max_rec 2048 bytes. fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode fwohci1: <NEC uPD72871/2> mem 0xfdeff000-0xfdefffff irq 10 at device 8.0 on pci2 fwohci1: OHCI version 1.0 (ROM=1) fwohci1: No. of Isochronous channels is 4. fwohci1: Phy 1394a available S400, 2 ports. fwohci1: Link S400, max_rec 1024 bytes. fwohci1: max_rec 1024 -> 2048 fwohci1: node_id=0x8000ffc0, gen=1, non CYCLEMASTER mode
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