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• Using FFmpeg and IPython

  25 février 2014, par Kreger51

  I am relatively new to Python (I used MATLAB a lot more). I essentially want to be able to make and save animations. So I went and checked how it's done and found this :
  http://jakevdp.github.io/blog/2012/08/18/matplotlib-animation-tutorial/

  I straight up copied/pasted the code in an IPython Notebook.

  I understand that ffmpeg must be installed, which I thought I did (according to http://www.wikihow.com/Install-FFmpeg-on-Windows). The path is C :/ffmpeg. It does work when I try ffmpeg -version in the command prompt. It also works in WinPython's command prompt. I don't know if it helps, but the path for Ipython is :
  C :\Users\Sal\WinPython-32bit-3.3.2.3\python-3.3.2\Scripts /

  However, it still doesn't work. The error given is :
  AttributeError : 'str' object has no attribute 'saving'
  This error occurs at the .save command of course.
  I even tried to add what's below. Doesn't do anything extra.
  writer = 'ffmpeg'

  I am using Windows 7, WinPython3.3.

  Thank you very much

• How to get and show volume input level from rtsp using ffplay

  4 septembre 2019, par Xavier

  I´m trying to get and display the volume level from an ip camera with rtsp protocol. By now i achieved with ffmpeg but i need to do it with ffplay.

  I have tried many combinations with no luck. Some of these

  ffplay -f lavfi -i rtsp://admin:admin@10.0.0.99:554/live/ch0:showvolume=f=0:b=0:w=310:h=59:o=v:m=p

  Gives error "No such filter : ’rtsp ://admin:admin’"

  ffplay -f lavfi "amovie ='audio\=rtsp://admin:admin@10.0.0.99:554/live/ch0',showvolume=f=0:b=0:w=310:h=59:o=v:m=p"

  Gives error "Undefined constant or missing ’(’ in ’admin@10.0.0.99’ and so many others.

  ffplay -f lavfi "amovie ='audio\=Microphone (Realtek High Definition Audio)':f=dshow,showvolume=f=0:b=0:w=310:h=59:o=v:m=p"

  This code works with internal notebook microphone but i can`t see how to replace dshow with RTSP

  I already tried others combinations but nothing works.
  I need to know how specify an rtsp input with lavfi or any other way to show volume input level from a rtsp with ffplay.
  Thanks in advance

• ffmpegintrop namespace not recognized

  13 mars 2016, par Muhammad Touseef

  I used the sample ffmpegintrop project provided by Microsoft, I followed all steps of building and compilation and it was succesfully built. But then I tried to run the project it fails to build giving error : ’type or namespace ffmpegintrop cannot be resolved’. As you can see in the attached image below that using statement of the namespace is also giving error that it is not working. Please help.