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• FFmpeg-Unable to find a suitable output format for FONTCONFIG_FILE

  28 mai 2017, par Stranger

  I am using below ffmpeg command to draw text on top of video-

  String path=getFilesDir()+"/fonts.conf";
  
  String[] complexCommand ={"-i", inputFilePath,"FONTCONFIG_FILE="+path,"-vf","drawtext=fontfile=/assets/fonts/formataregular.otf: \\text='Stack Overflow: fontcolor=white: fontsize=24: box=1: boxcolor=black@0.5: boxborderw=5: x=(w-text_w)/2: y=(h-text_h)/2'","-codec:a","copy",outputFilePath};

  I am using WritingMinds/ffmpeg-android and i have followed instruction-

  If you want to use FONTCONFIG then you need to specify your custom
  fontconfig config file (e.g - "FONTCONFIG_FILE=/sdcard/fonts.conf
  ./ffmpeg —version", where /sdcard/fonts.conf is location of your
  FONTCONFIG configuration file)

  My configuration file is stored in Internal Storage of device with name fonts.conf

  I am getting below error-

  Unable to find a suitable output format for
  ’FONTCONFIG_FILE=/data/data/videoeditor.bhuvnesh.com.ffmpegvideoeditor/files/fonts.conf’
  FONTCONFIG_FILE=/data/data/videoeditor.bhuvnesh.com.ffmpegvideoeditor/files/fonts.conf :
  Invalid argument

  I also tried path as-

    File dir=Environment.getExternalStorageDirectory();
  
    String path=dir.getAbsolutePath()+"/fonts.conf";

  Where am i going wrong ?

• ffmpeg - "Could not find the codec parameters" (Live Stream)

  8 mai 2017, par Gagandeep Singh

  I am trying to record a live HTTP stream using the following command :

  ffmpeg -analyzeduration 2147483647 -probesize 2147483647  -i "http://mumsite.cdnsrv.jio.com/jioplay.catchup.cdn.jio.com/recordings/H8_S480_H264_MP/2556/1493919000.mp4/init/LIVEPROGRAM_CHANNEL_2556_START_1493919000_END_1493922600?uid=guest_uid&recid=SCHEDULED-A00B00C00D00E00F-_-_-2556_48168092&shard=shard_a&sid=77179867662431494241905&i=2&nwk=WIFI&pk=1&CurrentNetworkType=WIFI&CurrentNetworkType=WIFI" -c copy -absf aac_adtstoasc testing.ts

  Below is a screenshot of the ff-prompt console :

  http://i64.tinypic.com/331d55w.jpg

  It looks like the URL is correct but no data is being saved in the file and these warning messages are shown :

  multiple fourcc not supported

  Could not find codec parameters for stream 1 (Video : none (encv /
  0x76636E65), none, 576x432) : unknown codec

  How do I determine which codec would handle that stream or is the reason something else ?

• Can't find ffmpeg with python

  16 avril 2017, par Edoardo Centamori

  I’m trying to use the module save from matplotlib.animation.FuncAnimation.
  This is the part of the code I’m referring to :

  import matplotlib.animation as animation
  
  plt.rcParams['animation.ffmpeg_path'] ='/Users/edoardo/Downloads/ffmpeg-3.3/ffmpeg'
  
  ...
  
  """other code"""
  
  ...
  
  ani = animation.FuncAnimation(fig, update_mode, 250,
  
                                 interval=50, blit=False)
  
  ani.save('Resonant_modes.mp4', fps=30, extra_args=['-vcodec', 'libx264'])

  But I get this error as a result :

  ValueError: Cannot save animation: no writers are available.
  
  Please install mencoder or ffmpeg to save animations.

  The problem is that I have installed ffmpeg, so I don’t know what to do.
  Could someone explain to me how to do and where should I move the executable ffmpeg file so than Python can find it easly ?

  Edit 1 :
  I’m using mac os x
  FFmpeg should be installed correctly, here’s the output from Bash :

  MBP-di-Edoardo:~ edoardo$ ffmpeg ffmpeg version 2.8.6 Copyright (c)    
  
  2000-2016 the FFmpeg developers built with gcc 4.8.5 (GCC) 
  
  ...more stuff ... 
  
  Use -h to get full help or, even better, run 'man ffmpeg' –

  Edit 2 :
  I’ve tried moving the file to \bin but even using sudo I can’t

  sudo cp ffmpeg /bin
  
  Password:
  
  cp: /bin/ffmpeg: Operation not permitted
  
  MBP-di-Edoardo:Desktop edoardo$