Hi, On 04-04-2022 23:11, Ying-Chun Liu (PaulLiu) wrote:
It is because your environment supports "neon" and ffmpeg will use that for acceleration.
I wonder.
But abel and qemu-user-static doesn't support neon. I think if you "cat /proc/cpuinfo" and neon will be in the Features.
root@ci-worker-armel-01:~# cat /proc/cpuinfo | grep neon root@ci-worker-armel-01:~# Nope.Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp ssbs
I now notice that the list of flags is also in the gdb output. If anything, it more looks like ffmpeg *thinks* it can use neon, but can't. Would that be a bug in ffmpeg?
I'll see if I can use cpuflags in ffmpeg to disable neon on my test. So that it can pass.
Ack, but I wonder if the bug needs to be cloned an reassigned to ffmpeg then, for detecting neon when not available.
Paul
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