Recherche avancée

Sur d’autres sites (5108)

• German umlauts in ffmpeg drawtext filter

  15 août 2020, par Gert Gottschalk

  I need help getting german umlauts 'äüö' displayed properly/(at all) in ffmpeg drawtext filter. I can't say at this time if my inability comes from lack of ffmpeg know-how or machine configuration or both. Your input is much appreciated.

  



  In ffmpeg cmd line I have :

  



  /home/tools/bin/ffmpeg -loop 1 -i RAW2TIF_01_png_1080/IMG_1119.png -c:v libx264 -vf drawtext="fontsize=60:fontcolor=yellow:fontfile=/usr/share/fonts/truetype/freefont/FreeSans.ttf:textfile=./Scripts/header_text.txt:x=(w-text_w)/2:y=(h-text_h-line_h)/2" -t 10 -pix_fmt yuv420p  -crf 16 -r 24 -y ./Video/header_txt.mp4


  



  Note the 'drawtext' call.

  



  My linux machine where I run ffmpeg is setup for US keyboard and characters. So my first roadblock is to get the umlauts into the text in some editor. I tried typing 'alt-numerical' sequences, but the special characters will not show in vi, vim, emacs.

  



  If I were to have the special characters in a textfile I would not know if/how ffmpeg is able to handle them.

  



  A search on popular engine for 'ffmpeg drawtext umlaut' does not return any (for me) meaningful returns.

  



  Thanks,
Gert

  


• Use FFmpeg for continuous streaming from other source

  28 septembre 2017, par widgg

  We have an app that pipes its output, and its output is compress H264 data. The source of the data is from a 3d engine running in same app.

  We can easily pipe the output in FFmpeg to save as mp4 or even m3u8.

  It’s also possible to turn FFmpeg as a server to feed video files.

  So our objective is to have FFmpeg read that data, convert into into mp4 or m3u8 internally and then stream so that it can be read in the web browser.

  We don’t care about be able to replay some file, go back in time or whatever, we just care about the current value.

  Is there a way to do that ? Or a similar solution that would allow some close to that.

  Thanks

  I guess, if it’s possible, it’s like wanting to stream your personal webcam into the web browser. Then you could connect to that and see what is happening at home or wherever your webcam is.

• Solid FFmpeg wrapper for C#/.NET

  21 mars 2018, par Jacob Poul Richardt

  I have been searching the web for some time for a solid FFmpeg wrapper for C#/.NET. But I have yet to come up with something useful. I have found the following three projects, but all of them apears to be dead in early alpha stage.

  FFmpeg.NET
  ffmpeg-sharp
  FFLIB.NET

  So my question is if anyone knows of a wrapper project that is more mature ?
  I am not looking for a full transcoding engine with job queues and more.
  Just a simple wrapper so I do not have to make a command line call and then parse the console output, but can make method calls and use eventlisteners for progress.

  And please feel free to mention any active projects, even if they are stil in the early stages.