Just noticed that AngelCarpintero has removed the fix in SVN r560.
Was it and accident or made on purpose?


On Fri, Jan 10, 2014 at 10:45 AM, Joerg WEBER <motion@alcatraz.shacknet.nu> wrote:
Hello tosiara,

yes, there is one indeed, but it's nothing new. Vidoes at high frame rates
are kind of jumpy, due to some suboptimal timing when capturing frames.
Maybe I can rewrite this part in the coming weeks. It's one of top issues
actually.


Brgds Joerg.


--


tosiara wrote:
Hi, Joerg

I noticed you have pushed a fix for this issue into SVN. Thank you! I have
built the current trunk and now testing on my few devices. So far I get
correct videos. Will monitor for few days and update if notice any side
effect


On Sun, Jan 5, 2014 at 11:28 PM, Joerg WEBER
<motion@alcatraz.shacknet.nu>wrote:

> Hello,
>
>
> I am able to reproduce the 3 fps problem now. It becomes visible only,
> when pre_capture is 0 and minimum_motion_frames is 1 - with is default.
>
> If I increase either option by 1, the videos are recorded at the right
> framerate.
>
> This sounds like a feasible workaround until I am able to provide a fix.
>
>
>
> Brgds Joerg.
>
>
>
>
>
> --
>
>
>
> Joerg WEBER wrote:
> Hello tosiara,
>
>
> thank you for providing this detailed information about the problem you
> had observed. I'll try to reproduce again with the same settings. Mine
> are indeed different in some points.
>
> Let me quickly explain, why this detection rate limit was implemented at
> all:
>
>
> When motion started, most people were using it at rates of 2 or 3 fps as
> a security cam application only. When time passed by, more powerful cams
> with higher resolution and more powerful PCs became available and people
> were increasing resolution and framerate up to realtime 25 or 30 fps to
> enjoy good quality videos. On one hand, this was a cool thing, but on the
>  other hand it was a problem for motion itself. Increasing the framerate
> decreased the detection accuracy of slow moving objects and the CPU load
> went up to 100%.
>
> So I decided to refine the detection algo a bit and limit it to 3 fps
> internally. That way, detection is working very reliable, no matter what
> actual framerate the user has selected. There are still some unanswered
> questions about how to treat events per picture (like on_picture_save).
> Should they be fired at a rate of 3 fps only or with every captured
> frame? Also the smartmask feature still lacks some tuning for higher
> framerates.
>
> Unfortunately there was very little feedback at the time when I
> implemented this rate limit, but for my setup, it was working quite well so
> far. There may be a serious bug though. I'll look into it now and come
> back with my findings soon. The suggested patch is definitely not the
> right answer to the problem, even though it might work for you.
>
>
> Brgds Joerg
>
>
>
>
>
>
>
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