updated ffmpeg-4.2 libs to newest versions

[tamara-schmitz]

I updated most of the libraries built from source in the alpine-4.2 image.
This involved changing version numbers, updating sha256sums, replacing URLs and adjusting build commands.
I have built the alpine image on my local machine.

I've made this PR to let you know that I'm working on this. I do intend to port this patch over to other images with the different OS base. But I would appreciate help on this.

[jrottenberg]

Oh that's great thank you, but can you make the change inside the template folder, so all variants benefits from them ?

[tamara-schmitz]

what sorcery is this xD? templates? sure can do.
so what do would i need to run after i updated the templates?

EDIT: answer to myself. run ./update.py

[tamara-schmitz]

git closed the PR after i reset the commit

[tamara-schmitz]

while watching the checks running the following occured:

centos builds "completed" earlier than expected and reported success despite the non-zero return during the x264 compilation step. may be a bug with the build system. after the build error it stopped compiling the other libraries.
See for more: https://dev.azure.com/video-tools/ffmpeg/_build/results?buildId=207&view=logs&j=4b231adf-81ae-59a4-de69-1d5fb07de66a&t=456bf2ef-07d6-5c05-364c-4fc233413fe2&l=1081

The issue for the centos version is that the latest x264-stable requires version 2.13 of nasm while the current centos:7 base only provides nasm version 2.10.

[hvindin]

If you were to rebase this and build it again the centos problem would likely be resolved. The base image for the centos containers is centos:8 which has cmake 3 as its packaged cmake version.

[tamara-schmitz]

welp libass doesnt build on CentOS...
configure: error: Package requirements (fribidi >= 0.19.0) were not met:.

will investigate this further and maybe even downgrade libass.

EDIT: a short Google Search revealed that fribidi is in fact available for CentOS and only needs to be added to the CentOS template. Will do so in a new commit.

[tamara-schmitz]

And with the new dependency, CentOS's package manager now tries to install a package called epel-release which adds a new repo. But when it tries to update its DB from that repo it fails. Just whyyy....

Installed:
  epel-release-8-5.el8.noarch                                                   

Complete!
CentOS-8 - PowerTools                           8.9 MB/s | 2.0 MB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64  376  B/s | 5.3 kB     00:14    
Failed to download metadata for repo 'epel'
Error: Failed to download metadata for repo 'epel'

But hey it only happened in the 4_2 centos build. Hopefully that's just a random hiccup.