oops, now: bsd question: how to record a tv stream?

Da Rock freebsd-questions at herveybayaustralia.com.au
Wed Mar 14 05:03:55 UTC 2012

On 03/14/12 13:09, Polytropon wrote:
> On Tue, 13 Mar 2012 19:19:46 -0700, Gary Kline wrote:
>> 	i have heard about the "848" or whatever cards for years.
>> 	should i have my sister's technician add one?  i understood
>> 	everything but your last paragraph.  please do send me the
>> 	links....offline i f you think it wise to spare the
>> 	bandwidth.
> Just to make a note: This is the card I'm using. The model
> name is "Haupauge WinTV" and the tuner chip is Brooktree 878.
> It is well supported by FreeBSD (and has been for many years).
> A "problem" may be that it is a PCI card.
> The programs mplayer and mencoder can be used to address the
> tuner and video-in functions of that card, as well as displaying
> and storing the received content. You need a HF line to the
> card (or an antenna maybe), except you provide the video feed
> from a satelite receiver via video-in. In that case, you also
> need to provide the audio signal from the receiver to your
> sound card's line-in. With mencoder, both sources can be
> "combined" and the result can be stored as a video file in
> any format and container you want.
> This is the card:
> bktr0 at pci0:0:9:0:       class=0x040000 card=0x13eb0070
>                          chip=0x036e109e rev=0x11 hdr=0x00
>      vendor     = 'Conexant (Was: Brooktree Corp)'
>      device     = 'Bt878/Fusion 878A Mediastream Controller'
>      class      = multimedia
>      subclass   = video
> The card provides HF-in both for TV and radio, video-in,
> audio-out and... not sure what it is. :-)
> You need the kernel modules loaded per
> 	bktr_load="YES"
> in /boot/loader.conf, and the card will work out of the box.
> No need to manually and interactively install a "driver". :-)
> The player command is something like
> 	% mplayer tv://1 -vo x11 -ao sdl -tv driver=bsdbt848:device=/dev/bktr0
> and similarly mencoder can be used (-ovc and -oac need to be
> adjusted accordingly) to encode to a file.
> I'm not sure how to handle TV ("antenna") input as I've always
> been using a raw video feed (from VTR or camera). However, there's
> documentation that may help:
> 	http://www.mplayerhq.hu/DOCS/HTML/en/tv-input.html
> It also contains an example to "record to file", which will
> implement the "software video tape recoder" functionality.
Brooktrees would be nice - if you could find them. Given the move to DVB 
is nearly over, there aren't many analog cards available - or need for them.

The new cards use incompatible chipsets (learnt the hard way), including 
analog and especially DVB; you have to use the cx88 port to use them. Or 
if you come across a different chipset ensure the card is USB based and 
use webcamd.

Following all that, FBSD works beautifully as a HTPC.

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