[Cin] Fade black flash

Andrew Randrianasulu randrianasulu at gmail.com
Thu Jun 24 02:24:03 CEST 2021

On Thursday, June 24, 2021, Phyllis Smith via Cin <
cin at lists.cinelerra-gg.org> wrote:

> Camille,
> A Freelancer has provided a fix for the fade bug in Title plugin and the
> Dissolve transition BUT I can not
> tell for sure if it is a correct fix (seems to work on Fedora O/S with
> your black flash demo).  I have asked
> IgorBeg to test if he has time.  A little more information is in BT #559.

i found few links that might be useful??

hm, looking at this bug note it seems to use some for of gamma correction?




you might want to check speed loss after this fix, especially on slower
machines? If speed fails down too much - may be those speed tricks can help

> If you would like to test for yourself, there is a new AppImage that works
> on both older and newer distros at:
>    https://cinelerra-gg.org/download/testing/cin_for_
> older_distros.AppImage
> For those not yet familar with using an AppImage, all you have to do is
> download the file (does not destroy
> your current Cinelerra) and make it executable via a window command:
> chmod +x cin_for_older_distros.AppImage
> and then just run it from a window via:   ./cin_for_older_distros.AppImage
> If anyone else tests, PLEASE provide feedback -- the only problem I had
> was that for an older Ubuntu 16 distro
> I have to use a new $HOME/.bcast5 to get it to work correctly.
> On Tue, Mar 9, 2021 at 1:47 AM Camille Harang via Cin <
> cin at lists.cinelerra-gg.org> wrote:
>> I've attached the editing file along with the PNGs.
>> Camille.
>> Le 09/03/2021 à 01:41, Sam via Cin a écrit :
>> Camille,
>> I vaguely remember such a similar case, but it was a very long time ago,
>> hence this old work around with the fade line.
>> However, after trying to reproduce this problem currently, I have not
>> succeeded. It runs fine every time, just like Phyllis, without the problem
>> you describe.
>> My question to you. Which Cinelerra version are you using? Can you show a
>> screenshot or short video of your timeline scenario and what parameters are
>> set on your end so we can better reproduce the error? Maybe we missed a
>> setting you are doing and with an exact match of the setting we can
>> reproduce this issue. Thanks in advance.
>> Sam
>> Am 09.03.21 um 00:48 schrieb Phyllis Smith via Cin:
>> Camille,
>> Honestly, I never see a flash and I have tried several variations based
>> on your description with the "fade in text parameter" being the easiest.  I
>> did do a recording of it and planned to show that but the recording does
>> not do a precise capture job so you can not tell it is working correctly.
>> There was no flash when playing at normal speed and then I tried single
>> stepping and still no flash.
>> Andrea,
>> I will try attaching a screenshot of how to set this up easily with the
>> hopes that you can try that.  Basically, I just created about 3 seconds of
>> nothing and added a Title plugin making sure to set the Fade parameter on
>> the Title menu to 3.0 seconds (I use the reset button first to make sure
>> there are no leftover weird settings).
>> On Mon, Mar 8, 2021 at 8:22 AM Camille Harang via Cin <
>> cin at lists.cinelerra-gg.org> wrote:
>>> Hi Sam, thanks for your reply, yes the fade line works, however it's not
>>> suitable for what I want to do, I want to fade many snippets of text and
>>> transparent PNGs on the same track, with always the same video transition
>>> filter set to the same duration. Otherwise it's too complicated to combine
>>> them on two tracks and adjust manually the fade curve for each. I posted
>>> the example of fade in text parameter as it's simpler than transition do
>>> explain, but it produces the same "black flash" bug.
>>> Thank you,
>>> Camille.
>> --
>> Cin mailing list
>> Cin at lists.cinelerra-gg.org
>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
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