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• Cannot decode RAW .Y4M video : "Operation not permitted"

  25 janvier 2020, par Ham789

  I am running ffmpeg version 4.2.2 on macOS Sierra and I cannot decode a RAW video.

  First I create the .Y4M video :

  ffmpeg -y -i inputfolder/GH012088.MP4 temp_raw_video.Y4M

  Then I try to input it to ffmpeg :

  ffmpeg -i temp_raw_video.Y4M 

  However I get the following error in the terminal : temp_raw_video.Y4M: Operation not permitted

  I have tried the above in Windows and it works fine. I have checked the permissions for the ’temp_raw_video.Y4M’ file and I have both read and write permissions.

  What is going on here ?

• libavdevice.so.57 : failed to map segment from shared object : Permission denied"

  10 septembre 2016, par user3579130

  I have successfully installed ffmpeg ver. 4.4.7 on centos, with shared enabled as such :

  [root@localhost ~]# ffmpeg
  
  ffmpeg version N-81555-g496d97f Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-17)
  
    configuration: --prefix=/usr/local/ffmpeg_build --extra-cflags=-I/usr/local/ffmpeg_build/include --extra-ldflags=-L/usr/local/ffmpeg_build/lib --bindir=/usr/local/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libx264 --enable-libx265 --enable-shared
  
    libavutil      55. 29.100 / 55. 29.100
  
    libavcodec     57. 54.102 / 57. 54.102
  
    libavformat    57. 48.102 / 57. 48.102
  
    libavdevice    57.  0.102 / 57.  0.102
  
    libavfilter     6. 60.100 /  6. 60.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Hyper fast Audio and Video encoder
  
  usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

  However, when I run in php, through exec I get

  "/usr/local/bin/ffmpeg : error while loading shared libraries :
  libavdevice.so.57 : failed to map segment from shared object :
  Permission denied"

  I know the web server executes the command as user ’apache’ and not root, but I installed ffmpeg in /usr/local/ffmpeg_build for that specific reason, so that the regular users can use ffmpeg.

  What did I miss ? What does this error mean ?

• Pyinstaller "Failed to execute script pyi_rth_pkgres" and missing packages

  11 septembre 2016, par gurnben

  This is my first time posting a question here as most of my questions have already been answered by someone else ! I am working on a GUI application in python and am attempting to use pyinstaller to package it into a single folder and .exe for easier portability. Currently, I am using windows 10 and anaconda3 to manage my python packages. The application relies on tkinter, pillow, numpy, scikit-learn, opencv, ffmpeg, and matplotlib. The application is formatted with a main GUI.py file that creates objects of a number of other files (many of which are stored in a subfolder as this GUI is replacing a command line utility that served the same purpose). The issue I am running into (as you can see in the title) is that the .exe is throwing the error block :

  Traceback (most recent call last) :
  File "site-packages\PyInstaller\loader\rthooks\pyi_rth_pkgres.py", line 11, in
  File "c :\users\gurnben\anaconda3\envs\opencv\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 389, in load_module
  exec(bytecode, module.dict)
  File "site-packages\setuptools-20.7.0-py3.5.egg\pkg_resources__init__.py", line 68, in
  File "site-packages\setuptools-20.7.0-py3.5.egg\pkg_resources\extern__init__.py", line 60, in load_module
  ImportError : The ’packaging’ package is required ; normally this is bundled with this package so if you get this warning, consult the packager of your distribution.
  Failed to execute script pyi_rth_pkgres

  When I look at the warn.txt it gives a massive list of missing packages including parts of some packages that are actually in the single folder package.
  I have, however, successfully gotten it to recognize the dll files from opencv and it is not listed among the missing (nor is ffmpeg however I did not see any ffmpeg files in the folder). I had to pass in a custom path to get it to include the opencv files as they are not in anaconda at this time.

  Any hints or ideas for next troubleshooting steps ? I am overly greatful for all of the help you an offer and I can upload any code, files, etc. that would help you diagnose the issue. In the meantime I will continue searching for a solution myself !