[Cin] some cleanups, adding ffmpeg script from mail archive

[Андрей Спицын]

Hi Phyllis, Andrew

My script was just a proof of concept, can cinelerra use external tools for
proxy file creation or not. The answer is Yes.
> how does Cinelerra work with this proxy file and switch back and forth to
the "real" file
As I remember, the user must create a proxy file with external script, and
the next step is to tell cinelerra to use proxy. It won't recreate proxy
files because they already exist.

Best regards,
Andrey


чт, 3 нояб. 2022 г. в 20:44, Phyllis Smith via Cin <
cin at lists.cinelerra-gg.org>:

> I think there is an easy solution to the below, but I am not sure what it
> is?
>
> After reading Andrea's email as referencing vaapi/proxy/ffmpeg speed up
> from the original thread as Andrew pointed out below, I see a problem that
> I do not understand how to make workable.  I was starting to make an update
> to the manual about having vaapi_proxy.sh in the doc directory for user
> usage when I got confused.
>
> On Thu, Nov 3, 2022 at 7:49 AM Andrew Randrianasulu <
> randrianasulu at gmail.com> wrote:
>
>> Using old thread
>>
>> https://lists.cinelerra-gg.org/pipermail/cin/2019-May/000671.html
>>
>> I added vaapi proxying script to our doc/ directory (really not fan of
>> retyping scripts from manual ...)
>>
>> Andrea Paz's reply below:
>
>> I made a build with the 2 patches of "configure.ac" + the other 4
>> patches ("cleanups"). I have no errors. I have not tried the proxy.
>>
>
> Problem: Andrey Spitsyn vaapi speedup using ffmpeg at 30x faster is a HUGE
> gain, but I do not see how it can be integrated into CinGG as in his
> suggestion of "So I thought that cinelerra can use this script to speed up
> the proxy files creation."
> 1) of course, it would only work if user had graphics board with vaapi
> capable acceleration but there are users who do;
> 2) but the real problem is if you run this script outside of CinGG, then
> how does Cinelerra work with this proxy file and switch back and forth to
> the "real" file and in the end have the changes applicable to the real file
> when you edit/render it in the future?
>
> Hoping Andrea Paz pursues testing a way if someone has a hint of how to do
> this?
> Or am I just missing something?
>
>
> --
> Cin mailing list
> Cin at lists.cinelerra-gg.org
> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>
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