[mythtv-users] new pcHDTV HD-5500 card
Bearcat M. Sandor
HomeTheater at feline-soul.com
Sun Aug 12 20:34:54 UTC 2007
My new HD-5500 card works, just not very well. I am using the V4L drivers as
i am just doing a capture via s-video from my dishnetwork VIP-211 reciever.
I understand that the DVB drivers do not work when using the card in this way
even though there is a setting for analog capture when they are chosen.
I have an AMD 64 3000, 1 gig of ram and a single nvidia 6600 video card. My
settings in the recording profiles (Software encoders) are all: 720x640,
MPEG-4, bitrate == 2200, Maximum Quality == 2, Minimum Quality ==15, Max
Quality difference between frames == 3, Scale bitrate for frame size == true,
Enable highquality encoding == true, Enable 4MV encoding == true, Enable
interlaced DCT encoding == false, Enable interlaced motion estimation ==
I'm seeing a few possible problems.
1) When i start live tv it usually looks good for about 30 seconds. Then it
starts to go in slow motion. It seems to be at about 1/2 speed. Even
adjustments to the picture settings take about 20 seconds (or so) to show up.
When i leave live tv everything is fast again. If i enter live tv it's the
proper speed for 30 seconds then it slows again. Mythfrontend is taking up
about 10% of my cpu and 15% of my memory, mythbackend takes up about 50-70%
of my cpu and 5% of my memory when live tv is running.
2) Sometimes it looks very pixilated, but increasing my bitrate to 2200 fixed
that for the most part. The jagged lines are caused by the interlaced nature
of SDTV, but what i'm seeing is more like low-bitrate youtube video
sometimes, especially on faces and dark scenes (looking over a crowd in a
concert video). Then again DIshnetwork signals can be pixelated and i don't
see that in the live tv all the time. This may not be an issue i can do
3) When i set up a recording, i make sure to choose Scheduling Options -->Use
any available input-->Prefer input s-video. However, i always get recordings
on the antenna which is not hooked up. I looks like a bunch of wavy green
lines. While i enjoyed the Matrix this is not what i had in mind. :)
I have a little money. I could put a few hundred dollars over the next month
in to computer upgrades. If i got more memory, a faster video card or a dual
CPU would that stop the slow motion? Would it help the pixelation? I realize
that this card does not have it's own decoder and it is relying on my CPU.
Thank you all for such an awesome app that keeps getting better.
Bearcat M. Sandor
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