Well, I moved the producers outside the playlist, and only refer to them by
their "id". It seems to make a huge difference on performance, but it
sounds like this is a bad idea judging from your previous email. Should I
abandon this approach for now?
Thanks!
-Jonathan
On Tue, May 3, 2011 at 11:10 PM, Dan Dennedy <[email protected]> wrote:
> On Tue, May 3, 2011 at 9:05 PM, Jonathan Thomas
> <[email protected]> wrote:
> > Okay, good to know. I will start updating my XML generation code to use
> INT
> > for frame numbers, instead of Floats. If there is anything else I need
> to
> > do, to ensure which deinterlacer is used, etc... please let me know.
> Also,
> > if there is a way to reuse a producer in the XML, please let me know the
> > syntax and I'll make that change as well. Thanks for the help!
>
> heh, well I was going to say, don't reuse producers! There is a
> side-effect with the way the avformat producer handles audio. I will
> spare you the technical details for now.
>
> Also, the bug with deinterlace is in Mlt with respect to transitions,
> and it actually looks like a longstanding bug from the analysis so
> far. So, there is nothing you can do to workaround it.
>
> > On Tue, May 3, 2011 at 10:58 PM, Dan Dennedy <[email protected]> wrote:
> >>
> >> On Tue, May 3, 2011 at 4:11 PM, Dan Dennedy <[email protected]> wrote:
> >> > On Tue, May 3, 2011 at 2:15 PM, Jonathan Thomas
> >> > <[email protected]> wrote:
> >> >> Greetings Dan!
> >> >> I have received many reports of sluggish playback using OpenShot with
> >> >> MLT
> >> >> 0.7.0 and 0.7.2 (including the GIT trunk). I have tried to do a bit
> of
> >> >> research before reporting this bug, but it's a bit difficult to nail
> >> >> down.
> >> >> It seems that when you take an HD video clip (I have seen various
> >> >> formats
> >> >> and codecs reported), and place it more than 1 time on the timeline,
> >> >> MLT
> >> >> starts to skip and stutter in an unusable way. However, if the clip
> is
> >> >> only
> >> >> on the timeline 1 time, it plays back smoothly. I'm not sure if
> these
> >> >> steps
> >> >
> >> > Are you creating distinct producers for each shot or reusing
> producers?
> >>
> >> I checked, and no, you are not. While reviewing this, I remembered
> >> something I need to tell you. Stop using floating point for your time
> >> values. In a near future version, floating point will be interpreted
> >> as a clock value (.e.g. 3.0 = 3 seconds).
> >>
> >> I found the problem is due to the yadif deinterlacer being selected
> >> instead of onefield, which is supposed to be used for sdl by default.
> >> I am working on it.
> >>
> >> --
> >> +-DRD-+
> >
> >
>
>
>
> --
> +-DRD-+
>
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