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• How can I install ffmpeg in python

  1er février 2017, par ismail yussuf

  I’m having a problem with downloading ffmpeg for python. It seems to me that no matter what I do it just doesn’t work.

  Btw ,sorry for the images but I still don’t know how to post my command prompt on here. So here is the error i’m getting.

  https://i.stack.imgur.com/ynHtM.png

  I’ve already tried "pip install ffmpeg-normalize" and when I do that I get this

  https://i.stack.imgur.com/sFpmn.png

  FYI I already downloaded imageio and that went totally fine. I even have the ffmpeg.py file in imageio. I also saw a suggestion to use "imageio.plugins.ffmpeg.download()", that didn’t help either.

  Does anyone know how I can install it properly ?

  Thanks

• Java Process Builder runs ffmpeg commands very slowly

  16 septembre 2022, par Mary

  I'm trying to run ffmpeg in Java using ProcessBuilder. I'm on Windows. It works fine. But not sure why it's much slower than when I just run the same command in command prompt or PowerShell.

  


  Why is it ? Is there any ways to increase the speed ?

  


  processBuilder.command("C:\\Windows\\System32\\cmd.exe", "/c","ffmpeg.exe", "-y", "-i", video,"-vf","scale=720:-1","out.mp4");
    processBuilder.redirectErrorStream(true);
    try {
                process = processBuilder.start();
                BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
                
                String line="";
                while ((line = reader.readLine()) != null) {
                        System.out.println(line);
        }
        } catch (Exception e) {
            System.err.println("Error in processBuilder. ");
        }


  


• Raspberry Pi cannot connect to IP camera, while Windows PC can ?

  28 novembre 2020, par gf000

  I have an IP camera (Provision ISR, DI-320IPS-VF, 2MP IR Vari-Focal Dome IP Camera). When I connect it to my router (it is a 10 or 12 years old TP-LINK TL-WR1043ND), it will immediately show up in "IP Manager" (this is a program by the manufacturer) on my Windows PC. If I double click on the camera's row, Internet Explorer opens up, and everything is working fine. On the same Windows PC, if I open VLC Media Player, and paste this URL : rtsp ://username:password@localipaddress:554/profile1
It works fine.

  


  I have also a "Raspberry Pi 4 model B 4 GB RAM", which is connected to the same router. If I open VLC Media Player, and I paste the same URL, it doesn't work. I also created an ffmpeg one-liner, which would take a photo, but that is also not working.

  


  My final goal would be to be able to take photos with that ffmpeg one-liner, on the Raspberry Pi.

  


  Maybe the Raspberry Pi is not powerful enough to handle the stream ? Or, could it be the problem that the IP-camera is sending H-264 / H-265 video stream, and the Raspberry Pi cannot handle it ?

  


  Thank you for your help. Any idea could help me.