[mythtvnz] OT: recording from VHS

[Steven Ellis]

On 19/07/2009, at 12:08 AM, Stephen Worthington wrote:

> On Sat, 18 Jul 2009 20:43:25 +1200, you wrote:
>
>> On Sat, Jul 18, 2009 at 8:20 PM, Stephen
>> Worthington<stephen_agent at jsw.gen.nz> wrote:
>>> On Sat, 18 Jul 2009 19:45:04 +1200, you wrote:
>>>
>>>> On Sat, 2009-07-18 at 19:22 +1200, Tortise wrote:
>
>>> If you have something like a PVR150 that does hardware compression  
>>> to
>>> MPEG-2, and you capture that and then convert to, say, H.264, you  
>>> are
>>> doing two compressions, and you lose quality by doing that.  So you
>>> are still better off using the PVR150 to capture to a raw AVI file  
>>> and
>>> then do just one compression from that.  I have not tried it with my
>>> PVR500, but most cards with builtin compression can also do raw
>>> capture.
>>>
>>
>> no the pvr 150/500 cannot do that afaik.
>
> Pity - it is a useful thing to be able to do.
>


Actually you can do raw video off these cards. The IVTV driver creates  
some additional /dev/video* devices one of which is a raw stream.


Steven Ellis - Technical Director
OpenMedia Limited
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz

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