[FFmpeg-user] ffmpeg stuck grabbing the screen

[Martin Ždila]

On Mon, Feb 27, 2017 at 11:38 AM, Carl Eugen Hoyos <ceffmpeg at gmail.com>
wrote:

> 2017-02-27 11:29 GMT+01:00 Martin Ždila <m.zdila at gmail.com>:
>
> > --enable-x11grab
>
> Just to make sure:
> Please remove this option, it may have unwanted side-effects.
>

No luck with git head of ffmpeg. It behaves the same way even if compiled
without --enable-x11grab.

Anything else we could try?

ffmpeg version N-83669-gf8d2079 Copyright (c) 2000-2017 the FFmpeg
developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration: --enable-nonfree --enable-gpl --enable-version3
--cpu=native --enable-libx264 --enable-libpulse --enable-libfdk-aac
  libavutil      55. 47.100 / 55. 47.100
  libavcodec     57. 81.100 / 57. 81.100
  libavformat    57. 66.102 / 57. 66.102
  libavdevice    57.  3.100 / 57.  3.100
  libavfilter     6. 74.100 /  6. 74.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
Hyper fast Audio and Video encoder

Note again that it works on different machine (both are AWS EC2) which is
of different instance type (different HW) but the architecture and OS is
the same. But I had this problem also on my (non-virtual) PC longer time
ago which had different OS (Debian) and different HW.

Doesn't work on this CPU:

sudo cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
stepping : 4
microcode : 0x415
cpu MHz : 2494.020
cache size : 25600 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand
hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs :
bogomips : 4988.04
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:


Works on this:

sudo cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
stepping : 7
microcode : 0x70a
cpu MHz : 2593.830
cache size : 20480 KB
physical id : 0
siblings : 8
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm
xsaveopt
bugs :
bogomips : 5187.66
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
stepping : 7
microcode : 0x70a
cpu MHz : 2593.830
cache size : 20480 KB
physical id : 0
siblings : 8
core id : 1
cpu cores : 4
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm
xsaveopt
bugs :
bogomips : 5187.66
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
stepping : 7
microcode : 0x70a
cpu MHz : 2593.830
cache size : 20480 KB
physical id : 0
siblings : 8
core id : 2
cpu cores : 4
apicid : 4
initial apicid : 4
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm
xsaveopt
bugs :
bogomips : 5187.66
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
stepping : 7
microcode : 0x70a
cpu MHz : 2593.830
cache size : 20480 KB
physical id : 0
siblings : 8
core id : 3
cpu cores : 4
apicid : 6
initial apicid : 6
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm
xsaveopt
bugs :
bogomips : 5187.66
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 4
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
stepping : 7
microcode : 0x70a
cpu MHz : 2593.830
cache size : 20480 KB
physical id : 0
siblings : 8
core id : 0
cpu cores : 4
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm
xsaveopt
bugs :
bogomips : 5187.66
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 5
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
stepping : 7
microcode : 0x70a
cpu MHz : 2593.830
cache size : 20480 KB
physical id : 0
siblings : 8
core id : 1
cpu cores : 4
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm
xsaveopt
bugs :
bogomips : 5187.66
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 6
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
stepping : 7
microcode : 0x70a
cpu MHz : 2593.830
cache size : 20480 KB
physical id : 0
siblings : 8
core id : 2
cpu cores : 4
apicid : 5
initial apicid : 5
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm
xsaveopt
bugs :
bogomips : 5187.66
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 7
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
stepping : 7
microcode : 0x70a
cpu MHz : 2593.830
cache size : 20480 KB
physical id : 0
siblings : 8
core id : 3
cpu cores : 4
apicid : 7
initial apicid : 7
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc
rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm
xsaveopt
bugs :
bogomips : 5187.66
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:


-- 
Martin Ždila