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• Drawtext freezes

  22 août 2017, par Samhita vempatti

  I am trying to add text to a 1 hour long video but to a specified time only . I used this command from within python and used subprocess to run it.

     cmd="ffmpeg -y -i "+input_file+" -vf drawtext=enable=\'between(t,"+str(start)+","+str(end)+")\':fontfile=C\:\\\\\\\\ffmpeg\\\\\\\\arial.ttf\:text="+starttime+"\:x="+endtime+"\:y="+str(i[3][1])+" "+output.mp4
  
      print(cmd)
  
      p = subprocess.Popen(cmd.split(), shell=True,
  
                   stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
  
      output = p.communicate()[0]

  When I try running this the whole process freezes in the shell that is it prints the cmd and nothing happens

  ffmpeg -y -i C:\\moviepy-master\\moviepy-master\\lecture7.mp4 -vf drawtext=enable='between(t,300,1000)':fontfile=C\:\\\\ffmpeg\\\\arial.ttf\:text=helloworld\:x=200\:y=600 C:\\moviepy-master\\moviepy-master\\lecture7text.mp4, 

  The whole process takes a very long time and the final video does not have the text at all .

• How to get ffprobe metadata as variable to parse in python

  29 avril 2021, par connor449

  When I run ffprobe <video></video>, I get the standard metadata as below :

  


  ffprobe version 4.3.1 Copyright (c) 2007-2020 the FFmpeg developers
  built with Apple clang version 11.0.3 (clang-1103.0.32.62)
  configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-avresample --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-librsvg --enable-libtheora --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libsoxr --enable-libspeex --enable-libass --enable-libbluray --enable-lzma --enable-gnutls --enable-fontconfig --enable-libfreetype --enable-libfribidi --disable-libjack --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --disable-indev=jack --enable-opencl --disable-outdev=xv --enable-audiotoolbox --enable-videotoolbox --enable-sdl2 --disable-securetransport --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --enable-libdav1d --arch=x86_64 --enable-x86asm --enable-libx265 --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../directConversion/200mbs105_55.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
  Duration: 00:01:12.43, start: 0.000000, bitrate: 213963 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1080x1920 [SAR 1:1 DAR 9:16], 213828 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : Core Media Video
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio



  


  I want to get this information from python so I can parse this output and use some of it in my code. However, I can't get this to work.

  


  I have tried the following :

  


  data = subprocess.call(f'ffprobe {video}', shell=True)
data = subprocess.check_output(f'ffprobe {vid}', shell=True)
data = subprocess.Popen(f'ffprobe {vid}', shell=True)
data = subprocess. Popen(f'ffprobe {vid}', stdout=subprocess.PIPE ).communicate()[0]
data = run(f'ffprobe {vid}', capture_output=True).stdout


  


  If I include shell=True, then the proper information prints in the terminal but I get an empty string for data. For commands without shell=True I get file not found error and it breaks. What should I do ? I got all of these solutions from SO and they seem to work for others.

  


• Streaming Installation paid request [on hold]

  9 février 2016, par Lewis Tyler

  Basically I need a streaming platform which allows my users to broadcast their webcam to a rtmp ip each users would have there own link rtmp://192.168.0.1/username/token I just need the server ip. No installation required. Does anyone know of any good sites to purchase a streaming server like this ? Or can anyone set one up for me over team viewer on my own remote server, happily to pay someone for their time.