search

BtbN / FFmpeg-Builds

MIT License
7.69k stars 1.06k forks source link

Document the minimal processor requirements #411

Open nihil-admirari opened 4 weeks ago

nihil-admirari commented 4 weeks ago

Got an issue about illegal instruction on a processor from 2010. Builds before 30 July 2024 were operational. Apparently support for older hardware was dropped since them, but what are the exact requirements?

BtbN commented 4 weeks ago

I'm not aware of any minimum processor requirements. People have suggested optimizing for x86-64-v3, but I rejected that, so it really should work on any amd64 CPU as far as compiler options are concerned. If an individual dependency decides to use more modern instructions unconditionally, that's sadly out of my control and also hard to track down.

BtbN commented 1 week ago

Did anything come from this? The builds are supposed to be generic x86_64.

nihil-admirari commented 1 week ago

I haven't investigated it myself. Asked @chaos7x to run ffmpeg under gdb to find out which instruction is causing the SIGILL.