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• FFMpeg is writing a matplotlib animation with diminishing quality

  3 mars 2017, par Bryan Stafford

  I am trying to create a bunch of animations that follow the paths National Hockey League teams travel during the current season. Currently, my animation looks like this.

  As you can see, the animation begins decently sharp but within 2 seconds the quality bottoms out and everything is grainy.

  The relevant code is this :

  ani = animation.FuncAnimation(fig, update, frames=len(all_x + 20), 
  
                                interval=75, repeat=False)
  
  filepath =  map_team + '.mp4'
  
  ani.save(filepath, writer='ffmpeg', fps=30)
  
  plt.tight_layout()
  
  plt.show()

  I have chosen FFMpeg as my writer because I hope to put about 30 graphics online and the MP4 format keeps each file around 1.5MB. If there’s a way to keep the graphics sharp, with low file sizes, and able to be uploaded onto Imgur, I would love to do that with my project.

  Thanks.

• How to install ffmpeg and an app together on a Mac ?

  30 juin 2016, par Patrick

  I have an electron app built and packaged for macOS in a .app file. The app requires ffmpeg to be installed on the end-user’s computer to be used.

  Currently, I’ve had to manually install ffmpeg on each end-user’s computer to run the app.

  I want to distribute the app online with an easy installer for both ffmpeg and the app. I’ve seen .dmg files which allows you to drag the .app into the applications folder easily, but the ffmpeg dependency is still absent in the installation process.

  How can I install ffmpeg and the app together on a mac ?

  Perhaps including the ffmpeg build in the .app content is a solution as well.
  This may not be possible though because a relevant question mentions there are only abstractions of the ffmpeg CLI instead of something that can directly use ffmpeg.

• Get Pid Ffmpeg On Centos With Bash Script

  2 mai 2020, par Abdullah Al-Habsyi

  I was created SH script n run with cron for 3 hours. but i want update live cctv real time if not online, i want grep pid for each sh i have. if pid exist nothing to do, if pid not exist run command this.

  



  #!/bin/bash
#IP 192.168.19.6

ping -c 1 -q 192.168.19.6 >&/dev/null

if [ $? -eq 0 ]; then
    rm -rf /var/www/cctv/public_html/video/ri-2/*.ts;
    rm -rf /var/www/cctv/public_html/video/ri-2/*.m3u8
    ffmpeg -stimeout 87000000 -err_detect aggressive -fflags discardcorrupt \
    -rtsp_transport tcp -i "rtsp://admin:12345@192.168.19.6/media/video1" \
    -vf scale=320:-1 -c:v libx264 -pix_fmt yuv420p -preset:v ultrafast \
    -hls_time 10 -hls_list_size 10 -hls_delete_threshold 10 -hls_flags delete_segments -f hls \
    "/var/www/cctv/public_html/video/ri-2/simpang.m3u8" \
    -progress -stats

else
    rm -rf /var/www/cctv/public_html/video/ri-2/*.ts;
    rm -rf /var/www/cctv/public_html/video/ri-2/*.m3u8
fi