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• Getting ffprobe or avprobe not found while using youtube_dl module

  26 décembre 2016, par Avinash

  import youtube_dl
  
  
  
  
  
  options = {
  
      'format':'bestaudio/best',
  
      'extractaudio':True,
  
      'audioformat': 'mp3',
  
      'outtmpl':'%(id)s.%(ext)s',
  
      'noplaylist':True,
  
      'nocheckcertificate':True,
  
      'postprocessors': [{
  
          'key': 'FFmpegExtractAudio',
  
          'preferredcodec': 'mp3',
  
          'preferredquality': '192',
  
      }],
  
  
  
  }
  
  
  
  with youtube_dl.YoutubeDL(options) as ydl:
  
      ydl.download(['http://www.youtube.com/watch?v=BaW_jenozKc'])

  I am Getting

  "youtube_dl.utils.DownloadError : ERROR : ffprobe or avprobe not found.
  Please install one."

  I downloaded ffmpeg and tried giving its bin folder location in path variable . I also tried copying that bin folder to my youtube_dl package folder. None of them worked.

  Thanks in advance.

• c# using pipes to get output stream

  1er janvier 2017, par lilscarecrow

  I am trying to pipe youtube-dl output to ffmpeg as input, but cannot seem to get the piping part to work. In normal cmd, I can do something like

   C:\YT\youtube-dl.exe -o - https://www.youtube.com/watch?v=L4aLQ0ki9Tk | ffmpeg -i pipe:0 -f asf pipe:1 

  but in c# this doesn’t work. Currently, I have c# create 2 processes :

  one for youtube-dl

  C:\YT\youtube-dl.exe -o - https://www.youtube.com/watch?v=L4aLQ0ki9Tk

  and another for ffmpeg

  ffmpeg  -i {yt.StandardOutput} -f s16le -ar 48000 -ac 2 pipe:1

  The problem is with the {yt.StandardOutput} (where yt is the process name of the youtube-dl process and -i specifies the input file/stream). Using pipe:0 doesn’t work either and I am not sure how to link the piped output of the first to the input of the second.

• want to stream mobile camera using ffserver and ffmpeg

  6 janvier 2017, par Vinay Pandya

  First i will tell you my requirement than i will tell you what i have done.

  i am noob in media streaming i am learning and i am very confused about it.

  basically i want to do following thing

  1 : mobile app will stream video on server through URL (which is on my laptop)
  2 : My laptop should run ffserver/ffmpeg which store video stream which is coming from mobile app and allow other client to watch it (here i am talking about VLC as client).

  so this is my requirement.

  i ham running ffserver on my laptop

  my ff server config is like :

  HTTPPort 8090
  
  HTTPBindAddress 0.0.0.0
  
  
  
  RTSPPort 8091
  
  RTSPBindAddress 0.0.0.0
  
  
  
  
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 1000
  
  CustomLog -
  
  
  
  #NoDaemon
  
  
  
  <feed>
  
      File /tmp/feed1.ffm
  
      FileMaxSize 200K
  
      ACL allow 127.0.0.1
  
  </feed>
  
  
  
  # if you want to use mpegts format instead of flv
  
  # then change "live.flv" to "live.ts"
  
  # and also change "Format flv" to "Format mpegts"
  
  <stream>
  
      Format flv
  
      Feed feed1.ffm
  
  
  
      VideoCodec libx264
  
      VideoFrameRate 30
  
      VideoBitRate 512
  
      VideoSize 320x240
  
      AVOptionVideo crf 23
  
      AVOptionVideo preset medium
  
      # for more info on crf/preset options, type: x264 --help
  
      AVOptionVideo flags +global_header
  
  
  
      AudioCodec aac
  
      Strict -2
  
      AudioBitRate 128
  
      AudioChannels 2
  
      AudioSampleRate 44100
  
      AVOptionAudio flags +global_header
  
  </stream>
  
  
  
  ##################################################################
  
  # Special streams
  
  ##################################################################
  
  <stream>
  
      Format status
  
      # Only allow local people to get the status
  
      ACL allow localhost
  
      ACL allow 192.168.0.0 192.168.255.255
  
  </stream>
  
  
  
  # Redirect index.html to the appropriate site
  
  <redirect>
  
      URL http://www.ffmpeg.org/
  
  </redirect>
  
  ##################################################################

  than i am adding following url to my mobile app to stream video.
  rtsp ://:8091/feed1.ffm
  my mobile app start streaming my mobile developer team said that.
  but i am not getting any log on ffserver, when i am stooping streaming the TEARDOWN request is comming

  [TEARDOWN] "rtsp://192.168.1.57:8091/feed1.ffm RTSP/1.0" 200 7034

  i have done this is so far, i dont know how to use ffmpeg with live streaming. please tell me some example for that.

  i am not able to watch that live stream on VLC client. also tell me what URL should i enter in VLC for streaming i have tried almost every url combination.

  and one more thing i want to do it with RTSP protocol.

  i think this info will help you to understand my requirement.