Hi, On Sat, Aug 1, 2009 at 1:20 AM, Steve Castellotti<sc@xxxxxxxxxxxxx> wrote: > > I was wondering if anyone could please point me at a list or similar > resource for USB capture devices which support raw (or sliced) VBI > access for producing a closed caption transcript through software such > as zbvi-ntsc-cc or ccextractor? Specifically I'm wanting a device > capable of S-Video, Composite, or even Component input, not just ATSC, > as most USB devices seem focused around these days. > > I've managed to get this working with various ivtv and saa713x based > PCI devices, but aren't aware of any USB implementations of chipsets > which use those drivers. > > > Searching online, I found this archived message: > > http://lists.zerezo.com/video4linux/msg16402.html > > which states: > >> some em2840 and newer devices are able to capture raw vbi in >> linux (sliced vbi isn't possible yet) >> em2820, em2800, em2750 do not support vbi at all. > > > Checking the em28xx driver homepage for recent models, I found this > entry: > > http://mcentral.de/wiki/index.php5/Em2880 > >> officially the em2880 is em2840 + DVB_T > > > which implies that not only is the "em2880" series a "newer" device, > but it should in fact already contain the "em2840" chip specifically > mentioned. > > > Later on that same page, in the list of devices: > > ATI/AMD TV Wonder 600 > > > and on the manufacturer's page: > > http://ati.amd.com/products/tvwonder600/usb/index.html > > > Under the list of "Input Connectors": > >> S-video input with adapter > > > > Picking up one of these devices, I attempted to tune into the S-Video > feed and check the /dev/vbi0 device, but received the same error message > as I do with all other em28xx devices encountered thus far: > >> Cannot capture vbi data with v4l interface: >> /dev/vbi0 (AMD ATI TV Wonder HD 600) is not a raw vbi device. > > > > Can anyone please point me in the right direction? > > I would much prefer to be certain the next purchase is supported. > > > > Thanks! > we do support Raw VBI for our devices, Sundtek MediaTV Pro for closed captioning. Alternatively we also have full support for ATSC-analogTV USB devices for the US market ([em288x]-[AVFB4910]-[Trident drx-J]-[tda18271]) the european product which we are selling is also capable of decoding NTSC closed caption. http://sundtek.de/shop/Digital-TV-Sticks-oxid/Sundtek-MediaTV-Pro.html (this is just the information about the European/DVB-T/DVB-C/analogTV(raw VBI) device, we do not have the US/ATSC/analogTV(rawVBI) product listed there, although we do offer it to business customers) We support it from Linux 2.6.15 on. Best Regards, Markus Rechberger -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
