John Van Sickle <[email protected]> added the comment:

Hi rbultje,

Thanks for responding. The solution you mention is, IMO, a rather poor one. How
are users supposed to know that they need --enable-runtime-cpudetect? Because
for me it took:

1) Having FFmpeg crash with any '-vf scale'
2) Build ffmpeg_g and backtrace
3) Build and test with --disable-amd3dnow --disable-amd3dnowext
4) File bug report
5) Dev responds

Here's what should have happened.

1) FFmpeg's ./configure tests if my system can use 3dnow. [no]

I'm not cross compiling here, the only thing I pass to ./configure is
--enable-gpl and the $PATH to up-to-date gcc and as. 

Is it unreasonable to expect FFmpeg to build a binary that won't crash trying to
using SIMD instructions my system doesn't support?

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<https://roundup.ffmpeg.org/issue2570>
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