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• How to setup HLS Live Video Streaming from iOS Device

  9 septembre 2017, par Sean

  Good day everyone !

  So, as the title suggests, i am developing an app with similar functionality to that off Periscope and Facebook Live video streaming. Here is what the end goal is :

  • A Broadcasting device [user]
  • EC2 Instance [Hosting an ffmpeg transcoder]
  • Cloudfront Distrubution [CDN]
  • 1 to n viewers of the live feed

  I’ve been doing a lot of googling and what I cant seem to figure out is :

  As you send chunks of video to the server from the Broadcaster, how do
  you create an
  .m3u8 playlist when you don’t have all the chunks of video yet (e.g. the
  device sends its first 5second chunk of video) ?

  It seems a .m3u8 file is created from a .mp4 file that is already complete, then broken down into chunks... But i’m sending chunks of the video to the server, how can it generate the .m3u8 file when more chunks are still coming from the Broadcaster, so the watchers / clients can continuously stitch together the video chunks ?

  I’ll be happy to clarify this question further. Thanks !

• Converting video by ffmpeg php but getting 0kb video file

  8 octobre 2014, par Vikas Gautam

  I am useing the ffmpeg command and able to convert video successfully on my local server and that working fine . now i am trying to convert the video in my live server my hosting provider installed the ffmpeg extension on sever and provide me the path for directory

  i am using the command on server

   echo exec("/usr/local/bin/ffmpeg -i /home/t4carenc/public_html/mycutekid/wp-content/themes/mycutekid/video/small.mp4    /home/t4carenc/public_html/mycutekid/wp-content/themes/mycutekid/video/outpu.flv");

  i am getting the converted file on my folder but

  the issue is that its with 0kb size means blank file .

  I tried some codes from searching but not help.

  Any help greatly appreciated

• ffmpeg convert mov file to mp4 for HTML5 video tag IE9

  27 septembre 2016, par Adidi

  I looked everywhere here and on google - there is no valid command that works for IE9.
  some how IE9 is missing something.
  All that I tried worked everywhere else : chrome,safari,mobile device etc...
  I want one command that will convert it and I can use it in every device suppose to support mp4 in HTML5 video tag.

  I use this commands :

  ffmpeg -i movie.mov -vcodec copy -acodec copy out.mp4
  
  ffmpeg -i movie.mov -vcodec libx264 -vprofile high -preset slow -b:v 500k -maxrate 500k -bufsize 1000k -vf scale=-1:480 -threads 0 -acodec libvo_aacenc -b:a 128k -pix_fmt yuv420p outa.mp4
  
  ffmpeg -i movie.mov -b:V 1500k -vcodec libx264 -preset fast -g 30 adel.mp4
  
  ffmpeg -i movie.mov -acodec aac -strict experimental -ac 2 -ab 160k -vcodec libx264 -preset slow -f mp4 -crf 22 lamlam.mp4
  
  ffmpeg -i movie.mov -acodec aac -strict experimental -ac 2 -ab 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -f mp4 -threads 0 adiel.mp4

  etc.. again all this commands produce a valid mp4 file which works on chrome,safari etc... and works even when I launch them in windows itself using window media player.
  When I put this file in the video tag (I am using http://videojs.com/) in IE9 it isn’t working !

  <div class="vidoco-content" style="margin-top: 20px;">
  
  <video class="video-js vjs-default-skin vidoco-center" controls="controls" preload="none" width="600" height="400" poster="&lt;?php echo(DOMAIN); ?>static/test.jpg">
  
      <source src="&lt;?php echo(DOMAIN); ?>static/out.mp4" type="video/mp4"></source>
  
  </video>
  
  </div>

  If I use the software miro video converter to convert the same mov file to mp4 - it converted fine and I can play it in IE9 !
  miro converter is also using embedd ffmpeg inside it so I am sure it’s only a metter of the right ffmpeg command and parameters.
  In my apache htaccess I set the correct mime types for my files and I see it indeed correct when looking in IE developer tools :

  AddType audio/aac .aac
  
  AddType audio/mp4 .mp4 .m4a
  
  AddType audio/mpeg .mp1 .mp2 .mp3 .mpg .mpeg
  
  AddType audio/ogg .oga .ogg
  
  AddType audio/wav .wav
  
  AddType audio/webm .webm
  
  
  
  AddType video/mp4 .mp4 .m4v
  
  AddType video/ogg .ogv
  
  AddType video/webm .webm

  I am struggling with this for a long time so any help would be much appreciated.

  Thanks !