[FFmpeg-devel] videotoolbox increases min target to macOS 12

[Helmut K. C. Tessarek]

Thanks for the reply.

On 2024-07-09 02:16, Gnattu OC via ffmpeg-devel wrote:
> Well the code introduced is to fix certain HDR related bugs and it does not "works perfectly” before, it was just broken.

I was rather talking about being able to compile it. I can compile 
ffmpeg without videotoolbox for older deployment targets without any issues.

It is great to fix videotoolbox, but is it required to use 
functions/methods that are only available in newer OS? All the other 
libraries and ffmpeg itself can fix bugs without using functions that 
are not available on "older" systems.

If you say it isn't possible, then all is good. I am not asking anyone 
to make the impossible possible.

I am just trying to understaand why videotoolbox is raising the minimum 
deploymewnt target all the time, while this is not necessary for 
anything else. Don't get me wrong, I am compiling ffmpeg with around 50 
3rd party libraries. None of them requires me to raise the deployment 
target.

> so that it should at least compile on older OS targets.
> But the end result is that the colorspace is as wrong as before, an older version cannot receive the fix to set the correct colorspace.
> 
> For this use case I could see that using the (now deprecated) `CVBufferGetAttachments` instead on older OS, but I cannot really test that because I don’t have device running that old version.

FYI. I am also compiling on the most recent macOS release but I set the 
deployment target via env var:

export MACOSX_DEPLOYMENT_TARGET=10.13


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