Hi. I got "Bus error" attempting to use SSE option in the ffmpeg port on 10-stable compiled with standard clang. My CPU is: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz According to CPU specs it surely can SSE, SSE2, SSE3, SSE4.1 If you meet similar bug reports, it is probably better to remove SSE option from the port.