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• cpu.c:253 : x264_cpu_detect : Assertion

  12 octobre 2017, par user6341251

  environment :
  ubuntu 16.04_x64 server
  install ffmpeg through apt-get install
  python 3
  

  when I try

  from moviepy.editor import *
clip = VideoFileClip("/root/video.mp4")
clip.ipython_display(width=280)

  Traceback (most recent call last) :
  File "", line 1, in
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/io/html_tools.py", line 219, in ipython_display
  center=center, rd_kwargs=rd_kwargs, **html_kwargs))
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/io/html_tools.py", line 97, in html_embed
  clip.write_videofile(**kwargs)
  File "", line 2, in write_videofile
  File "/usr/local/lib/python2.7/dist-packages/moviepy/decorators.py", line 54, in requires_duration
  return f(clip, *a, **k)
  File "", line 2, in write_videofile
  File "/usr/local/lib/python2.7/dist-packages/moviepy/decorators.py", line 137, in use_clip_fps_by_default
  return f(clip, *new_a, **new_kw)
  File "", line 2, in write_videofile
  File "/usr/local/lib/python2.7/dist-packages/moviepy/decorators.py", line 22, in convert_masks_to_RGB
  return f(clip, *a, **k)
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/VideoClip.py", line 349, in write_videofile
  progress_bar=progress_bar)
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/io/ffmpeg_writer.py", line 216, in ffmpeg_write_video
  writer.write_frame(frame)
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/io/ffmpeg_writer.py", line 178, in write_frame
  raise IOError(error)
  IOError : [Errno 32] Broken pipe

  MoviePy error : FFMPEG encountered the following error while writing file temp.mp4 :

  ffmpeg : common/cpu.c:253 : x264_cpu_detect : Assertion ` !(cpu&(0x0000040|0x0000080))’ failed.

  what happend ?

  ---

  @Ronald S. Bultje
  

  I am using a virtual machine

  processor : 0
  vendor_id : GenuineIntel
  cpu family : 6
  model : 13
  model name : QEMU Virtual CPU version (cpu64-rhel6)
  stepping : 3
  microcode : 0x1
  cpu MHz : 3504.000
  cache size : 4096 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 pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm rep_good nopl eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm fsgsbase bmi1 avx2 smep bmi2 xsaveopt
  bugs :
  bogomips : 7008.00
  clflush size : 64
  cache_alignment : 64
  address sizes : 39 bits physical, 48 bits virtual
  power management :
  

• Memcached protocol support

  15 novembre 2013, par Mikko Koppanen — Imagick

  For the past few days I’ve been adding Memcached binary protocol support to PECL memcached extension. The protocol handler provides a high-level abstraction for acting as a memcached server. There are quite a few things still missing and only binary protocol is supported at the moment, but the code seems to work reasonably well in small-scale testing.

  I am not sure whether this is useful for anyone, but at least it allows things such as quick prototyping of network servers, exposing sqlite database over memcached protocol etc.

  The code is quite simple and implementing a simple server responding to get and set would look roughly like the following :

  php

  < view plain text >

  1. < ?php
  2. // Create new server instance
  3. $server = new MemcachedServer() ;
  4.  
  5. // Create a simple storage class
  6. class Storage {
  7.   private $values = array () ;
  8.   
  9.   public function set ($key, $value, $expiration) {
  10.     $this->values [$key] = array (’value’ => $value,
  11.                    ’expires’ => time () + $expiration) ;
  12.   }
  13.  
  14.   public function get ($key) {
  15.     if (isset ($this->values [$key])) {
  16.       if ($this->values [$key] [’expires’] < time ()) {
  17.         unset ($this->values [$key]) ;
  18.         return null ;
  19.       }
  20.       return $this->values [$key] [’value’] ;
  21.     }
  22.     else
  23.       return null ;
  24.   }
  25. }
  26.  
  27. $storage = new Storage () ;
  28.  
  29. // Set callback for get command
  30. $server->on (Memcached: :ON_GET,
  31.        function ($client_id, $key, &$value, &$flags, &$cas) use ($storage) {
  32.          echo "Getting key=[$key]" . PHP_EOL ;
  33.          if (($value = $storage->get ($key))  != null)
  34.            return Memcached: :RESPONSE_SUCCESS ;
  35.  
  36.          return Memcached: :RESPONSE_KEY_ENOENT ;
  37.        }) ;
  38.  
  39. // Set callback for set command
  40. $server->on (Memcached: :ON_SET,
  41.        function ($client_id, $key, $value, $flags, $expiration, $cas, &$result_cas) use ($storage) {
  42.          echo "Setting key=[$key] value=[$value]" . PHP_EOL ;
  43.          $storage->set ($key, $value, $expiration) ;
  44.          return Memcached: :RESPONSE_SUCCESS ;
  45.        }) ;
  46.  
  47. // Run the server on localhost, port 3434. Will block
  48. $server->run ("127.0.0.1:3434") ;
  49.  ?>

  And the client that communicates with the server :

  php

  < view plain text >

  1. < ?php
  2.  
  3. $cache = new Memcached() ;
  4. $cache->setOption(Memcached: :OPT_BINARY_PROTOCOL, true) ;
  5. $cache->setOption(Memcached: :OPT_COMPRESSION, false) ;
  6. $cache->addServer(’localhost’, 3434) ;
  7.  
  8. $cache->set (’set_key1’, ’This is the first key’, 10) ;
  9. var_dump ($cache->get (’set_key1’)) ;
  10.  
  11. $cache->set (’set_key2’, ’This is the second key’, 2) ;
  12. var_dump ($cache->get (’set_key2’)) ;
  13.  ?>

  The code is still work in progress but it’s available in github : https://github.com/mkoppanen/php-memcached/tree/feature-server. Note that you need to compile libmemcached with –enable-libmemcachedprotocol and the PECL memcached extension with –enable-memcached-protocol.

• avformat/webmdashenc : Don't pass NULL to memcmp

  23 septembre 2019, par Andreas Rheinhardt

  avformat/webmdashenc : Don't pass NULL to memcmp
  Affects the FATE-tests webm-dash-manifest-unaligned-video-streams,
  
  webm-dash-manifest and webm-dash-manifest-representations.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavformat/webmdashenc.c