[FFmpeg-user] Command being killed in perceptual hashing / ffmpeg in general
afitzmaurice at irishfilm.ie
Fri Oct 6 17:19:45 EEST 2017
>Generally, a backtrace, disassembly and register dump are required for crash reports (esp. if they are not easily reproducible).
Thanks for your response! I changed the dimensions to 320x240 and it worked as expected. It may just be that the files are too large.
I was following the ffmpeg bug report documentation (https://www.ffmpeg.org/bugreports.html) to try and get any additional information on why the process crashed with the original file, but that process didn't work either.
Input: ifi-mac-pro:~ admin$ gdb ffmpeg
Output: GNU gdb (GDB) 8.0.1
Copyright (C) 2017 Free Software Foundation, Inc.
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and "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin15.6.0".
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For bug reporting instructions, please see:
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Reading symbols from ffmpeg...(no debugging symbols found)...done.
Input: (gdb) r ffmpeg -i Card\ 1/B0011888U01.mov -i / Card\ 2/B0011888.mov -filter_complex signature=detectmode=full:nb_inputs=2 -f null -loglevel verbose -
Output: Starting program: /usr/local/bin/ffmpeg ffmpeg -i Card\ 1/B0011888U01.mov -i Card\ 2/B0011888.mov -filter_complex signature=detectmode=full:nb_inputs=2 -f null -loglevel verbose -
Unable to find Mach task port for process-id 63368: (os/kern) failure (0x5).
(please check gdb is codesigned - see taskgated(8))
I looked (codesigned - see taskgated(8)) and it looks like it needs to circumvent some security certificate, which I wouldn't be confident doing on this workstation. Would there be another way to get the backtrace, disassembly and register dump for any issues in the future?
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