[mythtv-users] IVTV issues (video scrambled looking)

Brian Wood beww at beww.org
Sat Jun 3 10:24:15 UTC 2006


On Jun 3, 2006, at 12:06 AM, Michael T. Dean wrote:

> On 06/02/2006 11:55 PM, Brian Wood wrote:
>> On Jun 2, 2006, at 9:07 PM, Mickey Chandler wrote:
>>> At 04:38 PM 6/2/2006, Brian Wood wrote:
>>>
>>>> Any chance the OP could post a screenshot of the "scrambled"  
>>>> picture,
>>>> perhaps a digital camera shot? I'm not sure what the problem is,  
>>>> but
>>>> I suspect that it will become obvious once we see it. I'm guessing
>>>> the mpeg is fine and it is a video output problem.
>>>>
>>> Certainly.
>> Wow, that's what I call scrambled.
>>
>> I really expected I would recognize the problem from seeing it, but I
>> have to admit I have never seen this type of output before.
>>
>> I'm going to send the pic to a couple of former co-workers of mine to
>> see if they recognize the particular distortion.
>>
>> It looks like the H and V are free-running and not locked to
>> anything. I think there is a setup option or two that are related to
>> sync, you might try playing with them.
>>
>> You might also try running at a lower resolution and see what  
>> happens.
>
> Before going too far with this, shouldn't the OP try playing the  
> MPEG on
> another player (preferably another computer) to verify your theory  
> (that
> the recording itself is fine)?


Of course. I guess I'm guilty of the "since I would have done this I  
assume it was done" syndrome :-)

Playing the file with mplayer (or anything else), or even playing the  
direct output of the card would be one of the first things to be  
tried. If playing on the same machine fails trying it on a different  
box would be even more definitive.

(Of course I'm always guilty of assuming that because I have multiple  
machines so does everyone else) :-)

Also things like is the file size reasonable, does the "file" command  
recognize it as an mpeg file etc. are obvious things to check.

Thanks for the reality check.


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