[mythtv-users] My MythTV experience

[Ken Bass]

None, I tried those previously but they did't work. 

[root at kevo utils]# ./test_ioctl -y brightness=128
ioctl: VIDIOC_S_CTRL
ioctl: VIDIOC_S_CTRL failed

Looking in dmesg - there is a cooresponding msg:
ivtv: ivtv-api.c: unknown ioctl 0x4008561c

If I try to use the 'function' key in MythTV same result.

On Mon, 18 Aug 2003 09:56:28 -0500 (CDT), "James S. White"
<james at jameswhite.org> wrote:

>> The colors on the TV are much darker, black objects blend into the background.
>> Peoples faces are redish/orange. Very white background shows 'interlace'
>> looking stripes. Video where flash bulbs go off is poor.
>
>Just out of curiosity, how much adjusting have you attempted with test_ioctl?
>As in:
># brightness [0 - 255]
>test_ioctl -y brightness=128
># hue [-128 - 127]
>test_ioctl -y hue=-5
># saturation [0 - 127]
>test_ioctl -y saturation=64
># contrast [0 - 127]
>test_ioctl -y contrast=64
>
>
>--------------------------------------------------------------
>James S. White                      GAPS Incorporated
>james at jameswhite.org                Electrical Engineer - Etc.
>http://www.jameswhite.org           Caffeine is my anti-drug.
>--------------------------------------------------------------
>I can picture in my mind a world without war, a world without hate.
>And I can picture us attacking that world, because they'd never expect it.
>                                                               -Jack Handy
>
>On Mon, 18 Aug 2003, Ken Bass wrote:
>
>> I've put together a mythtv box with a small form factor PC (ASUS Pundit).
>> 2.4GHz 533GSB P4, 512MB RAM, 160GB HD.
>>
>> I've tried both a bt848 based card which does the encoding in software and a
>> PVR-250 MPEG2 hardware encoder. I'm interfacing with analog cable TV.
>>
>> My goal was to use this connected to my TV.
>>
>> I find the picture quality to be unacceptable. I don't own one of those
>> commerical PVR's so I do not have a comparision. My expectations are high,
>> I'm looking for good quality (close to the original broadcast).
>>
>> Using the RTJPEG or the MPEG4 codecs yield poor results. MPEG4 with 'FMV'
>> options turned on is not that great. The quality looks poor when things move
>> fast.
>> The PVR-250 is much better quality (at 4GB/hr its a bit of a hog). However,
>> even the PVR-250 is not what I consider acceptable for everyday use (ie;
>> always use live tv through the box).
>>
>>   The playback of the PVR-250 doesn't look too bad on a computer monitor,
>> but my goal is not to run this on a computer. It seems the TV-out (S-Video)
>> is the worst/weakest link in the chain. Just running the monitor next to the
>>
>>  Is this what I should expect on a large (36" TV)? Perhaps this is
>> acceptable for everyone and I just have high expectations. I'm about to give
>> up on the project.
>>