[mythtv-users] PVR-150 & MythTV Size issues.

Richard C. Isaacson ri at beldurnik.com
Wed Mar 23 20:16:09 UTC 2005


Jarod Wilson wrote:

>On Wednesday 23 March 2005 11:59, Richard C. Isaacson wrote:
>  
>
>>So I got bored by my Mythbox being stable so I went out and picked up a
>>PVR-150 card. With the latest ivtv on atrpms-testing I can get a picture
>>and sound to display. This is a good sign. Though when using it within
>>MythTV it shows 480x480 rather then the 720x480 that my PVR-250 happily
>>shows me. From what I can tell MythTV is setting the display back to
>>480x480 even if I force it over to 720x480. Let me show you some output:
>>
>>###Changing the format.
>>[root at myth ~]# /usr/bin/ivtvctl --device=/dev/video1 -f
>>width=720,height=480 ioctl: VIDIOC_S_FMT
>>        Before:
>>        Type   : Video Capture
>>        Width  : 480
>>        Height : 480
>>
>>        After:
>>        Type   : Video Capture
>>        Width  : 720
>>        Height : 480
>>###After starting mythbackend and mythfrontend.
>>[root at myth ~]# /usr/bin/ivtvctl --device=/dev/video1 -F
>>ioctl: VIDIOC_G_FMT
>>        Type   : Video Capture
>>        Width  : 480
>>        Height : 480
>>    
>>
>
>You do NOT use ivtvctl to set the resolution Myth records at. Myth controls 
>that interally, based on your recording profiles. I pretty much guarantee 
>your 250 is recording at 480x480 right now also, its just that scaling is 
>supported on the the 250 and not on the 150 (yet) in ivtv. So the 250 shows 
>the full picture, the 150 chops off the right quarter.
>
>  
>
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>  
>
Is there any way to get around the issue of needing to use scaling? I 
can force it so it used 720x480 and mplayer will show the picture 
properly. Is there a good way to hack around this issue?


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