[mythtv-users] am i dropping frames?

[Mitch Gore]

On Jan 14, 2008 7:40 PM, Steve Peters - Priority Electronics <
steve at priorityelectronics.com> wrote:

>
>
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Brian Wood
> Sent: Monday, January 14, 2008 5:15 PM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] am i dropping frames?
>
>
> Steve Peters - Priority Electronics wrote:
> > Hello,
> >
> > When i watch sports, i notice that the video is not very smooth. It's
> > pretty smooth, but noticabally not smooth when compared to watching
> > standard tv (non mythtv). During most other shows it's not noticable,
> > but since sports are fast action the entire time, it's noticable,
> > especially during basketball.
> >
> > Watching downloaded divx videos from the stage6 divx site shows me
> > that it's not the system, cause those hd videos play so smoothly.
> >
> > Anyone have any ideas for me? Am i dropping frames in my recordings,
> > and is that why it seems this way? How do i tell?
>
> What do you mean by "not very smooth"? Can you post a short clip
> somewhere?
>
> I often see a lot of macro-blocking on sports events, especially during
> fancy wipes and fast action. I know this is not my Myth system as I have
> seen the same artifacts at the local TV station.
>
> Lots of ways to screw up digital video that do not involve dropping
> frames.
>
> beww
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>
>
> I'm using a pvr-500, so analog to digital converting there. As far as the
> clip, I have a 1 minute, 50mb clip that I have posted at
> http://www.penguinframe.com/1034_20080114164028.mpg
>
> Hopefully you'll see what I mean. It's most noticable when the basketball
> is
> being passed through the air, or when the camera is panning from left to
> right or right to left, also, the scrolling ticker at the bottom of the
> screen is hard to read, whereas on normal tv, it's very clear. I have the
> video encoded at a very high bitrate, so I'm sure it's not that (I've
> tried
> up to 9000kbps and not noticed a difference).
>
> -Thanks
>
>
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Which de-interlacer are you using?  I just played the file in VLC and it
looked bad until I enabled Bob detinerlacer.

Mitchell
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