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• ffmpeg exited with code 1 : Output with label 'videooutput' does not exist in any defined filter graph, or was already used elsewhere

  12 avril 2022, par ThePrime

  I'm using the https://www.npmjs.com/package/live-stream-radio module, but a few times i get this error using it. How could i solve it ? My code :

  


  const NodeMediaServer = require('node-media-server');

const config = {
  rtmp: {
    port: 1935,
    chunk_size: 60000,
    gop_cache: true,
    ping: 30,
    ping_timeout: 60
  },
  http: {
    port: 8080,
    allow_origin: '*',
    mediaroot: 'F:/VMediaServer/mediaroot'
  },
  trans: { ffmpeg: 'C:/ffmpeg/bin/ffmpeg.exe', tasks: [ { app: 'live', ac: 'aac', vc: 'libx264', 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]' } ] }
};

var nms = new NodeMediaServer(config)
nms.run();


  


• Safari on Yosemite doesn't get total media duration from init file of video generated using MP4Box

  30 avril 2015, par sonam

  I am trying to play HTML5 video using MediaSource Extesion. I am generating dash fragmnets using MP4Box. I am creating init fragment and respective dash fragments.

  I am creating mediasource and adding init fragment to it. When this is done, all the browsers where media source extension is supported(chrome, firefox developer version, android chrome, windows 8 IE11), return correct media duration. But the same doesn’t work with safari on Yosemite, where spec says media source is supported. So on safari, media duration is updated as and when data fragments are appended to it progressively. How can I make it work in safari ? Is there something that is missing from init fragment and how to add it ?

• ffmpeg error during encoding : EOF timestamp not reliable

  5 décembre 2019, par Massimo Vantaggio

  I have noticed that some videos processed by the following command displays an error in the preliminary phase of the process :

  [Parsed_movie_0 @ 0x7fb06cf00d80] EOF timestamp not reliable

  All this happens while I’m testing the ffmpeg command line that generates the encoding with the specific required by dash :

  ffmpeg -y -i inputfile.mp4 -c:a aac -b:a 384k -ar 48000 -ac 2 -async 1 -c:v libx264 -x264opts keyint=60:min-keyint=60:no-scenecut -r 30 -b:v 2400k -maxrate 2400k -bufsize 1200k -t 3600 -vf "scale=-1:$size" -vf "movie=logo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]" format.mp4

  It work fine with some videos with small duration but by testing with some movies downloaded it give this error and i believe that could be a problem for MP4Box when dashing which other errors.
  Does anyone have any notices about it ? Is the command line suitable for dash ?
  Thanks
  Massimo