[Cin] CinGG crash rendering high fps

[Phyllis Smith]

MatN
Not sure I understood everything you said.  I was confused by the
MotionHVScan error message but then I checked the
code base, and I saw that error is in motion-hv and motion2point both.  So
it looks like you were not even using those
plugins?  I am a little confused still but I guess the main point is that
there is no BT here!

On Sun, Jun 27, 2021 at 11:50 AM mnieuw--- via Cin <
cin at lists.cinelerra-gg.org> wrote:

> Well, it's good I did not make  BT entry out of it.
>
> The error message MotionHVScan only appears in the motion2 plugin.
> I did three different renders to mp4.
> a) motion2 removed, H.264 vaapi: rendered 32174 frames in 1604.302
> secs, 20.055 fps, file size 1.1 GB. b) motion2 removed, H.264: rendered
> 32174 frames in 1902.344 secs, 16.913 fps, file size .39 GB ! c)
> motion2 restored. Time slow because machine went in standby, file size
> .39 GB. All three played fine.
>
> In all cases, I used a fresh start of CinGG from the bin directory, no
> effects in action anywhere.
>
> I could not understand yesterday why MotionHVScan would have anything
> to do with duplicating frames, but it doesn't apparently. I don't know
> what went wrong yesterday but it must have been something local. No
> updates were done to the machine.
>
> Now the files all play fine, and VLC says there are 120 fps, but are
> they really? I don't have a high-fps monitor (it is running at 60
> Hz). I should expect that a movie at 120 fps when played at 60 Hz
> runs at half the speed, or maybe it is played indeed at 120 hz but I
> cannot see it because of the monitor/graphics susbsystem?
>
> What I also don't understand is why rendering not using vaapi makes the
> rendered file so little bigger at 120 fps than at the original
> 50. The original was 348 decimal MB, the 120fps one 407 .
>
> Finally, rendering was slow, and software rendering did not use
> 100% cpu, I guess on average about 50. Could be that if I were to use a
> local (same machine) render farm it goes much quicker.
>
> MatN
>
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> Cin at lists.cinelerra-gg.org
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>
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