VidCap Dropped Frames

[Allan]

In using Windows (XP) Movie Maker, frames are dropped from
the captured video. I have seen fixes for 98se and ME
operating systems, but these do not seem to apply to XP.
The problem is that after a short period of time, the
captured video drops frames, causing a choppy captured of
the source video. It may relate to buffering or DMA but I
am unsure how to correct this.

[James W. Glass]

Allan wrote:
> In using Windows (XP) Movie Maker, frames are dropped from
> the captured video. I have seen fixes for 98se and ME
> operating systems, but these do not seem to apply to XP.
> The problem is that after a short period of time, the
> captured video drops frames, causing a choppy captured of
> the source video. It may relate to buffering or DMA but I
> am unsure how to correct this.

What is your CPU and video? Dropped frames are usually a result of slow
CPU, slow video, slow HD and are a typical artifact of legacy computer
systems. It has been reported by "others" that to get "smooth" 15-20
frames per second requires about 500 Mhz cpu and video with video RAM,
not shared RAM and HD with DMA enabled.

Also, make sure that you have nothing except essentials running in
background or as startup.

Jim

[Allan]

>-----Original Message-----
>Allan wrote:
>> In using Windows (XP) Movie Maker, frames are dropped
from
>> the captured video. I have seen fixes for 98se and ME
>> operating systems, but these do not seem to apply to XP.
>> The problem is that after a short period of time, the
>> captured video drops frames, causing a choppy captured
of
>> the source video. It may relate to buffering or DMA but
I
>> am unsure how to correct this.
>
>What is your CPU and video? Dropped frames are usually a
result of slow
>CPU, slow video, slow HD and are a typical artifact of
legacy computer
>systems. It has been reported by "others" that to
get "smooth" 15-20
>frames per second requires about 500 Mhz cpu and video
with video RAM,
>not shared RAM and HD with DMA enabled.
>
>Also, make sure that you have nothing except essentials
running in
>background or as startup.
>
>Jim
>
>
>Hardware should not be an issue:
1.9GHZ,P4
64MB DDR NVIDIA GEFORCE3 TI 500 GRAPHICS
>The machine is 1-year old.

Allan

[James W. Glass]

Allan wrote:
>> -----Original Message-----
>> Allan wrote:
>>> In using Windows (XP) Movie Maker, frames are dropped from
>>> the captured video. I have seen fixes for 98se and ME
>>> operating systems, but these do not seem to apply to XP.
>>> The problem is that after a short period of time, the
>>> captured video drops frames, causing a choppy captured of
>>> the source video. It may relate to buffering or DMA but I
>>> am unsure how to correct this.
>>
>> What is your CPU and video? Dropped frames are usually a result of
>> slow CPU, slow video, slow HD and are a typical artifact of legacy
>> computer systems. It has been reported by "others" that to
> get "smooth" 15-20
>> frames per second requires about 500 Mhz cpu and video with video
>> RAM, not shared RAM and HD with DMA enabled.
>>
>> Also, make sure that you have nothing except essentials running in
>> background or as startup.
>>
>> Jim
>>
>>
>> Hardware should not be an issue:
> 1.9GHZ,P4
> 64MB DDR NVIDIA GEFORCE3 TI 500 GRAPHICS
>> The machine is 1-year old.
>
> Allan

Kelly's corner has one possible solution
Prevent AVI playing from using 100% CPU
http://www.kellys-korner-xp.com/xp_tweaks2.htm
Look in the "Fixes" section half-way down the page.

Another, albeit remote possibility, posted here a few days ago, is for
allowing deletion of "broken" avi files. Delete the reg key
HKEY_LOCAL_MACHINESOFTWAREClassesCLSID{87D62D94-71B3-4b9a-9489-5FE6850DC
73E}
InProcServer32

This refers to broken files, but it seems to me that it also improves
avi file handling overall, especially copying or moving any large file
between XP computers (granted, I might just be fooling myself).
Deleting the key prevents explorer from copying the entire broken avi
file into memory before executing a file operation.

Jim