[Cin] fileexr reading error handling

[Phyllis Smith]

Andrew, could you check the final GIT checkin to make sure I got it right?
I found no problems but only minimal testing.
Andrea, if you have a chance to build from the latest GIT and send me email
before I start AppImage builds on the 31st that all seems probably OK, that
would be appreciated.

As described below, all should be included plus the libpng
"0001-More-error-handling-in-filepng-sorry.patch" in the final GIT
checkin.   At least, I think I got it right!  Thanks, Andrew

On Tue, Aug 29, 2023 at 10:46 PM Andrew Randrianasulu <
randrianasulu at gmail.com> wrote:

> Using https://openexr.com/en/latest/HelloWorld.html as example
>
> so for now I have base
>
> commit d51dc1ff2dbd920c6488af4380b8064c9b6a7b4c (origin/master,
> origin/HEAD)
> Author: Good Guy <good1.2guy at gmail.com>
> Date:   Tue Aug 29 20:20:10 2023 -0600
>
>     Credit Andrew - rest of fix for Arch (and termux) which includes
> thirdparty/Makefile
>
>
> plus
>
> commit afa6a601fd3228be18aef413061b3d0165344d7c (HEAD -> master)
> Author: Andrew Randrianasulu <randrianasulu at gmail.com>
> Date:   Wed Aug 30 07:27:57 2023 +0300
>
>     Fileext reading error handling for bg render
>
> commit cac447973db936f7d5594c83521c34f3e5a9c187
> Author: Andrew Randrianasulu <randrianasulu at gmail.com>
> Date:   Wed Aug 30 05:27:10 2023 +0300
>
>     Add libjpeg dep to.libtiff in thirdparty/Makefile
>
> commit 8297b38e49da0ce73e119138c158e806eb1fb45d
> Author: Andrew Randrianasulu <randrianasulu at gmail.com>
> Date:   Wed Aug 30 02:48:47 2023 +0300
>
>     Possible fix for ffmpeg 4.4 in pluginfclient.C
>
> ====
>
> so, ffmpeg 5.1 based cin seems to work on Slackware 15.0 i586 (with
> some self-build packages).
>
> Tested adding ffmpeg video filter to video track, and of course
> background render with  on-the-fly compressor switch.
>
> aggrh, in commit message fileert instead of fileexr. I hope this is
> not a big problem
>
>
>
> will try  my virtual machines next
>
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