[mythtv] Decision on FFmpeg repository

[Jean-Yves Avenard]

> On 17 May 2018, at 9:05 pm, Peter Bennett <pb.mythtv at gmail.com> wrote:
> 
> My concern with submodules is
> 
> 1. You have to run "git submodule init" when you first clone or when you add a submodule. 
> 2. You have to run "git submodule update" after "git pull" or when there are submodule changes.
> 3. A commit hash may no longer identify what source code was used for a build, because you cannot tell if they remembered to update the submodule. I suppose we need to add a submodule hash to the version string.
> 
> The need to update the submodule will affect developers and build scripts.
> 
> Is this all correct? I have not used submodules, just read the documentation. Any ideas on how to approach notifying everybody who may be affected? Perhaps start 2c with the copy and give everybody some period of time to add the necessary submodule code to build scripts, then switch to the submodule.
> 

The configure script (or make file) typically ensures that the submodule is there and at the right value.
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