Recherche avancée

Sur d’autres sites (6138)

• Video streaming from file system

  20 novembre 2019, par shah ghani

  I am trying to make a video server, my scenario is users will upload there files and I have a screen that will play all the files of the day like advertisement that we usually watch in our televisions.

  So far I have achieved .hls and .flv streaming through node media server.

  I have found the best way to stream a file is through FFMPEG, but I am unable to stream multiple files on same output url for example localhost:8000/index.m3u8, Can any one suggest me the right way to stream the next file when FFMPEG ends streaming of a previous file.

  Thanks in advance. :)

  My node media service config

  {
  
    rtmp: {
  
      port: 1935,
  
      chunk_size: 60000,
  
      gop_cache: true,
  
      ping: 30,
  
      ping_timeout: 60
  
    },
  
    http: {
  
      port: 8000,
  
      mediaroot: './media',
  
      allow_origin: '*'
  
    },
  
    trans: {
  
      ffmpeg: 'E:/Red Matrix/node-stream-master/node-stream-master/usr/bin/ffmpeg.exe',
  
      tasks: [
  
        {
  
          app: 'live',
  
          hls: true,
  
          hlsFlags: '[hls_time=2:hls_list_size=3:hls_flags=delete_segments]',
  
          dash: true,
  
          dashFlags: '[f=dash:window_size=3:extra_window_size=5]'
  
        }
  
      ]
  
    }
  
  };

  FFMPEG stream function

  function ffmpegStream(stream){
  
  
  
    var proc = ffmpeg()
  
    .input('D:/Videos/1.MP4')
  
      .on('error', function (err) {
  
        console.log('An error occurred: ' + err.message);
  
      })
  
      .on('end', function (e) {
  
  
  
        console.log('Processing end !' + JSON.stringify(this));
  
  
  
         ffmpegStream('D:/Videos/2.MP4')
  
      })
  
      .on('done', function() {
  
        console.log('Processing finished !');
  
  
  
      })
  
      .save('./media/live/abc/index.m3u8');
  
  }

• FFMPEG image to video with kenburns effect

  11 novembre 2019, par Buu

  I am new to FFMPEG and I kinda confused with their commands and options. So I googled some existing commands and found this :

  ffmpeg -y -loop 1 -i bgimage.png -ss 0 -t 5 -r 1 -loop 1 -i front.png -ss 0 -t 5 -filter_complex " [1:v] scale=w=1920:h=1080 [fg]; [0:v] scale=w=-2:h=3*1080 , crop=w=3*1920/1.2:h=3*1080/1.2:y=t*(in_h-out_h)/5, scale=w=1920:h=1080, setsar =1 [bg] ; [bg][fg]overlay=shortest=1[v] " -map "[v]" -c:v h264 -crf 18 -preset v eryfast pan_up.mp4

  The only problem is effects becomes sluggish.

  I am trying to convert image to video with kenburns effects. Can you guys help me out ? Calling ffmpeg masters here in SO. Your help will be greatly appreciated. Thank you so much !

  Here’s the sample video I want to achieved, https://trello-attachments.s3.amazonaws.com/545a93cff0b222f456c5ad82/5d8cfc0d75e80e63dae2fe6a/5a523ed328f24b0454c5c56cd0ee68e6/23442279.mp4

• Is a any way of piping input to deepspeech under Linux ?

  24 octobre 2019, par Unreal Admin

  I am trying to continually stream audio from my IP camera to a server running deepspeech to decode the audio stream to text in realtime using FFMPEG.

  I am using the following command :

  $ffmpeg -i rtsp ://192.168.1.249:8080/h264_pcm.sdp -ar 16000 -ac 1 -acodec pcm_s16le -vn -f wav - |
  deepspeech —model deepspeech-0.5.1-models/output_graph.pbmm —alphabet deepspeech-0.5.1-models/alphabet.txt —lm deepspeech-0.5.1-models/lm.binary —trie deepspeech-0.5.1-models/trie —audio -

  Deepspeech : FileNotFoundError : [Errno 2] No such file or directory : ’-’

  deepspeech doesn’t like the ’—audio -’ specifier.

  Is there any way of achieving the above goal using this approach ? Perhaps deepspeech just isn’t designed to do this ?

  Are there any other suggestions as to how this might be achieved ?

  ffmpeg can be directed to write a .wav file. Deepspeech and transcode this file. But I wish to continually stream and transcode the audio.