[Cin] How do I crop a picture-in-picture?

[David Given]

Yup, that did it --- thanks very much. (Although I couldn't find any
'Adjust' menu option, and instead changed the format in Settings->Format.)
That also enables inverting the mask, by drawing a mask and then setting
the Fade option to a negative number, which is actually way easier than
using the Crop and Position plugin, so I'll use that. Without changing the
format setting Fade to a negative number just makes everything go black.

Why does the colour mode of the *project* affect cropping of one particular
video? This kind of cropping and masking occurs inside the compositor and
should be unrelated to the project setting, surely?

On Fri, 17 Apr 2020 at 20:16, <sergiogomez at tostado.com.ar> wrote:

> Check color mode of the project. You must to use one with alpha channel
> RGBA-8bit or YUVA-8bit, you can change it in Ajust pulldown menu, option:
> format
>
> El 2020-04-17 12:48, David Given escribió:
>
> I've tried the crop and position effect --- it gives me black borders to
> the cropped video. See the attached image.
>
> Is there a way to adjust the camera and projector without preserving
> aspect ratio?
>
> On Fri, 17 Apr 2020 at 17:21, Rafa Mar Multimedia en Gnu\Linux <
> rafamar.mm.ig at gmail.com> wrote:
>
>> I think the Cinelerra GG team should enable a channel on youtube where
>> these videos could be uploaded. Always starting with the title: Cinelerra
>> GG + short title, for example, Cinelerra GG: Trim clip and rotate
>>
>> This I think would attract users, because they are very explicit short
>> videos, and this is really what users are looking for. For us to make a
>> video like this takes just 15 minutes, and it would be very good to promote
>> Cinelerra by sharing the channel on social networks.
>>
>> Its management would be very simple, the videos of these responses are
>> collected and uploaded to the channel ... one minute, I drink the beer
>> stock from the fridge ... mmm drunk ... I already see millions of channel
>> visits and income (fully deserved) for the GG team.
>>
>> Jokes aside, I think it would be very good, only silent videos or with
>> the music clips that YouTube puts on for free. Being languageless they
>> serve everyone.
>>
>> Summary
>> * Silent videos, or with music without ® or copyright problems
>> * Maximum duration 2 minutes
>>
>> objective
>> * Promote Cinelerra GG for youtubers
>>
>> Channel title
>> * Cinelerra GG Silent Videos for all people
>> or
>> * Cinelerra GG Mute Videos for all people
>>
>> Method of operation
>> * Good forum and email videos are collected
>> * A shared folder is enabled in drive, mega, where interested users can
>> upload their videos, with the requirements that they be silent or only with
>> music without copyright, and a maximum of 2 minutes long.
>>
>> I go back to the fridge ... mmmm even more drunk ... at the end of the
>> year we run a contest and award a bottle of Spanish reserve wine for the
>> winner, I pay it and bear the shipping costs.
>>
>>
>> P.S. Please don't block my emails, I know I'm a bit heavy, but my head
>> always boils with ideas.
>>
>> Yours sincerely Rafa
>>
>> El vie., 17 abr. 2020 a las 10:57, Igor BEGHETTO (<igorbeg at visi1.org>)
>> escribió:
>>
>>> Hi David!
>>> And after the good reply of Phyllis, RafaMar and Andrea_paz,...
>>> Another one, depending on your project/goal.
>>> File name: HowTo_PIP_withCropAndPosition.ogv
>>> Link to: https://streamable.com/8r44xz
>>>
>>> IgorBeg
>>>
>>> PS:
>>> You can use "Crop&Position" plugin also with Proxy (without Scaling),
>>> that I always use.
>>> --
>>> 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
>
>
>
> --
> ┌─── http://www.cowlark.com ───
> │ "I have always wished for my computer to be as easy to use as my
> │ telephone; my wish has come true because I can no longer figure out
> │ how to use my telephone." --- Bjarne Stroustrup
>
>
>
>
>

-- 
┌─── http://www.cowlark.com ───
│ "I have always wished for my computer to be as easy to use as my
│ telephone; my wish has come true because I can no longer figure out
│ how to use my telephone." --- Bjarne Stroustrup
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