[Cin] Fade black flash

Thu Jun 24 23:48:03 CEST 2021

On Thursday, June 24, 2021, Phyllis Smith <phylsmith2017 at gmail.com> wrote:

> That is so weird.  Well, I think will have to rely on Freelancer to know
> what he is doing and
> assume it will not break anything.  Even if it is slower, it is a bad bug
> and should be fixed.
> I am glad you found the URL about the LINEAR and SRGB.
>

ah, got it.. I forgot to place  png on underlaying track... (was using just
background png in titler)

while i still think it may be normal operation, considering you can 'fix'
it by switching to porter-duff / srcOver?

https://cloud.mail.ru/public/7a43/L2XrXVwAD
nearly 30 mb..

or this is not that you generally want?

should png itself contain alpha channel? (like they do in this case)
or Cin's compositor will add it automagically as you load to rgba project?

i mean if you do not want to use them as masks...

> On Thu, Jun 24, 2021 at 2:20 PM Andrew Randrianasulu <
> randrianasulu at gmail.com> wrote:
>
>> with vpn it works, in sense I clearly see fade to black before it starts
>> to fade _from_ invisibility...
>>
>> but i stll can't get same effect locally (
>>
>> On Thursday, June 24, 2021, Andrew Randrianasulu <randrianasulu at gmail.com>
>> wrote:
>>
>>>
>>> nope (
>>>
>>> probably internet  provider having troubles or just blocked addr .. (
>>>
>>> i can try vpn but speed was not stellar last time I tried it..
>>>
>>> sorry for inconvience (
>>>
>>>
>>> On Thursday, June 24, 2021, Phyllis Smith <phylsmith2017 at gmail.com>
>>> wrote:
>>>
>>>> Try this one instead:
>>>> https://streamable.com/jcmq6j
>>>>
>>>> On Thu, Jun 24, 2021 at 2:03 PM Andrew Randrianasulu <
>>>> randrianasulu at gmail.com> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Thursday, June 24, 2021, Phyllis Smith via Cin <
>>>>> cin at lists.cinelerra-gg.org> wrote:
>>>>>
>>>>>> Here is the demo playing the whole timeline
>>>>>>     https://streamable.com/v29e38
>>>>>>
>>>>>
>>>>> sorry, streamable returns 'address not found' error if I try to follow
>>>>> this or any other similar link :(
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> What I am so worried about this mod is because it probably affects
>>>>>> the "Overlay Modes" in the Patchbay.
>>>>>> That is Arithmetic, Logical, Normal, Porter Duff, Graphic -- I do not
>>>>>> mind testing them but I am not sure that I can do a good job.
>>>>>>
>>>>>
>>>>> well... it also probably will add some cpu overhead... may be 'gamma'
>>>>> plugin can also hide this flashing effect? (looking purely at how changes
>>>>> named...)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>> On Thu, Jun 24, 2021 at 1:06 PM Andrew Randrianasulu via Cin <
>>>>>> cin at lists.cinelerra-gg.org> wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Thursday, June 24, 2021, Andrew Randrianasulu <
>>>>>>> randrianasulu at gmail.com> wrote:
>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Thursday, June 24, 2021, Phyllis Smith via Cin <
>>>>>>>> cin at lists.cinelerra-gg.org> wrote:
>>>>>>>>
>>>>>>>>> Andrew,
>>>>>>>>> Also, I downloaded your mp4 and looking at the bottom times on the
>>>>>>>>> main window towards the right side, you should see problem at:
>>>>>>>>> 0:00:04:01 and 0:00:25:07 IF you loaded the example starting at
>>>>>>>>> the beginning of the timeline.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> you mean by deleting part of timeline just before first title
>>>>>>>> plugin?
>>>>>>>>
>>>>>>>> I can't see flash in this demo, even if in Youtube video at 0.25
>>>>>>>> speed I clearly can see it (
>>>>>>>>
>>>>>>>> I also tried to check and uncheck 'play every frame' - but  still
>>>>>>>> bug not surfaced *for me now* even if I think I saw it on my desktop
>>>>>>>> machine...
>>>>>>>>
>>>>>>>
>>>>>>> new demo..
>>>>>>> https://cloud.mail.ru/public/fBmm/mpXTuszzH
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>> When I play yours I do not see it
>>>>>>>>> playing at that time.  I "think" I see the flash at 0:00:06:2----
>>>>>>>>> but the time stamp is cut off in your demo.
>>>>>>>>>
>>>>>>>>> On Thu, Jun 24, 2021 at 11:58 AM Andrew Randrianasulu via Cin <
>>>>>>>>> cin at lists.cinelerra-gg.org> wrote:
>>>>>>>>>
>>>>>>>>>> for some reason I can't see bug with X11/xv outputs (I do not
>>>>>>>>>> have OpenGl in this environment..) and rgb/a-8 or yuv(a) 8 as project's
>>>>>>>>>> colorformat ??
>>>>>>>>>>
>>>>>>>>>> https://cloud.mail.ru/public/4Dcd/s58jmvHYF
>>>>>>>>>> should give you screenrecord around 9 mb...
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Tuesday, March 9, 2021, 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
>>>>>>>>>>
>>>>>>>>> --
>>>>>>> Cin mailing list
>>>>>>> Cin at lists.cinelerra-gg.org
>>>>>>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>>>>>>
>>>>>>
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