Recherche avancée

Sur d’autres sites (11963)

• lavfi : add an avgblur_vulkan filter

  27 octobre 2019, par Lynne

  lavfi : add an avgblur_vulkan filter
  This commit adds a fast avgblur Vulkan filter.
  
  This will reset Intel GPUs on Linux due to a known, two-year-old driver bug
  
  (!834 on mesa's gitlab).
  

  • [DH] configure
  • [DH] libavfilter/Makefile
  • [DH] libavfilter/allfilters.c
  • [DH] libavfilter/vf_avgblur_vulkan.c

• Video files are not opening for sample applications in Info Sphere Streams

  10 mars 2017, par Pavan Kumar

  I am new to IBM Info Sphere Streams, I read an article which says IBM Info Sphere streams is capable of doing Image processing. After some research I got to know that, we have to install OpenCV and FFMpeg lybraries with its dependecies. I have installed all of them and tried sample applications. I can run applications which contains Images as input, but when it comes to processing with videos it’s not working. I am unable to use x11viewer operator as well. I am getting the following error while working with sample videos.

  (Streams com.ibm.streamsx.opencv::X11Viewer operator:7889): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
  
  28 Feb 2017 14:00:34.672 [7889] ERROR #splapptrc,J[0],P[0],vid0,spl_pe M[PEImpl.cpp:process:1270]  - CDISR5079E: An exception occurred during the processing of the processing element. The error is: Unable to open camera {0}. 

  I did not install any GPU device drivers here but when I used the following commands I am getting results like below,

  [streamsadmin@streamsqse output]$ lspci | grep VGA
  
  00:0f.0 VGA compatible controller: VMware SVGA II Adapter
  
  
  
  [streamsadmin@streamsqse output]$ find /dev -group video
  
  /dev/fb0
  
  /dev/dri/card0
  
  /dev/dri/renderD128
  
  /dev/dri/controlD64
  
  /dev/agpgart

  and

  glxinfo | grep -i vendor
  
  server glx vendor string: SGI
  
  client glx vendor string: Mesa Project and SGI
  
  OpenGL vendor string: VMware, Inc

  My doubt here is, whether I have installed GPU Drivers properly or do I need to install them again ? Can anyone help me to resolve this issue.

  And I am unable to open those videos by using any player as well.

• How to add blurred border on top and bottom based on the video

  5 avril 2023, par Noob69

  I am trying to modify a video to 1080x1920 scale and I want to add to the borders on top and bottom, a blurred version of the video based on the pixel on the edge.

  


  import subprocess

input_file = "my_video1.mp4"
output_file = "my_video_processed1.mp4"

command = f'ffmpeg -i {input_file} -vf "scale=1080:1920:force_original_aspect_ratio=decrease,pad=1080:1920:(ow-iw)/2:(oh-ih)/2,eq=saturation=2.0:gamma=1.2:contrast=1.2,unsharp=lx=5:ly=5:la=0.5:cx=5:cy=5:ca=0.5" -c:v libx264 -preset slow -crf 18 -c:a copy {output_file}'
subprocess.call(command, shell=True)



  


  I tried
mode = replicate, however it is not working for the latest version of ffmpeg from Windows builds by BtbN.