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• Has anyone gotten a windows build of FFMPEG to publish to Akamai's CDN via RTMP ?

  3 décembre 2013, par Ken Conner

  I am trying to live stream a file to Akamai's servers via RTMP from flash and I cannot get past the authentication step even though I know I am using the right username and password (the credentials work in FMLE). I Have found some posts online but they are older and its difficult because no one ever reports what build of FFMPEG they are using.

  Has anyone gotten this to work with Windows binaries ?

• Problem to convert Mp4 to MPEG DASH with FFMPEG codec Vp9 in linux

  4 mars 2020, par Sean Pribadi

  i need to convert mp4 to mpeg Dash and stream .Mpd with dash.js. everything looks fine on windows, but there are trouble when i generate Mpd in linux.
  Step by step in windows :
  1. run

  ffmpeg -y -i video.mp4 -map 0:0 -map 0:0 -map 0:1 -c:v libvpx-vp9 -b:v:0 800k -b:v:1 200k -s:v:1 320x170 -bf 1 -keyint_min 120 -g 120 -sc_threshold 0 -b_strategy 0 -use_timeline 1 -use_template 1 -adaptation_sets "id=0,streams=v id=1,streams=a" -f dash config.mpd

  2. stream config.mpd, init, and chunk file with dash.js player.
     everything work when i run ffmpeg on windows

  when i ran on linux :
  1. run

  ffmpeg -y -i video.mp4 -map 0:0 -map 0:0 -map 0:1 -c:v libvpx-vp9 -b:v:0 800k -b:v:1 200k -s:v:1 320x170 -bf 1 -keyint_min 120 -g 120 -sc_threshold 0 -b_strategy 0 -use_timeline 1 -use_template 1 -adaptation_sets "id=0,streams=v id=1,streams=a" -f dash config.mpd

  no error and everything looks good. But when i stream with dash.js.
  

  2. stream with dash.js player
     when i stream config.mpd with dash.js player, there are infinity request enter image description here

  what i have tried :
  1. change init-stream build by linux with init-stream build by windows [Work]
  2. change codec to libx264 [also work in linux]

  the problem is just convert video to MPEG dash with webm codec (vp8/Vp9) in linux

• How to combine pictures with an audio into a video by ffmpeg ? [duplicate]

  3 septembre 2019, par Saeron Meng

  This question already has an answer here :

  • Using FFmpeg to join images with different timly distance
    
    2 answers
    
  • How do I render a video from a list of time-stamped images ?
    
    2 answers
    
  • ffmepg video from uneven sequence of png images
    
    2 answers
    
  • How to successfully use ffmpeg to convert images into videos
    
    1 answer
    

  I recorded my voice for a powerpoint (or a bunch of pictures). Now I have all materials and a list of starttimes and endtimes of each picture, but I don’t know how I should use the command line to apply ffmpeg so as to combine those to a video.

  I have searched on the Internet, some of the websites tell me to create a txt file containing the starttime and endtime of each picture and use the concat option of ffmpeg. But I don’t know how to write the txt and achieve it.

  Previously, I have an xml file containing starttimes and endtimes, to indicate my pictures :

  <page title="1" height="540" width="960" starttimestamp="794.852" speedup="true" step="65535" stoptimestamp="1008.887" loc="hls/128345566_0.png"></page>
  
  <page title="2" height="540" width="960" starttimestamp="1008.887" speedup="false" step="0" stoptimestamp="1078.888" loc="hls/128345566_1.png"></page>
  
  <page title="3" height="540" width="960" starttimestamp="1078.888" speedup="false" step="0" stoptimestamp="1081.206" loc="hls/128345566_2.png"></page>

  How to write the concat list and apply ffmpeg ? (just format will be okay)