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• Live Video Streaming from android device to server [on hold]

  23 octobre 2013, par Android_sp

  hey friends i want your help

  i search a lot and study lots of code available for streaming for android but yet i can't get clear idea for me. i want simple one thing to pass stream from android device to wowza server in H.264 encoding for video and AAC for Audio.

  here some links which i already serf :

  Which not anwser :Link 1

  i also refer this most popular question from our site : Link 2

  but this useful but at some level ..

  1) Native side by using FFmpeg library i can able to send video stream but can't find a way how to encode video in H.264 format : Downloaded from here

  2) SPYdroid demo i found but from this i can send video stream to particular server :
  Downloaded from Here

  so guys if you know some thing please help me so i can find a way.

• MP4's cutting out at the end when streaming FMS 3.5

  16 novembre 2013, par user1488848

  I am trying to stream a series of MP4's using FMS3.5 and some of the files seem to cut out a few seconds right before the end. I have used the ffmpeg bat proccess below, and when I increased the framerate to 500 it seems to have corrected itself although that has caused the files to be significantly larger. Was there anyway that I can keep the filesize and framerate lower while avoiding the cutout issue or some predefined settings I should be using when streaming MP4's off FMS 3.5

  ffmpeg -i input.mp4 -pass 1 -s 572x322 -vcodec libx264 -b 500k -flags +loop+mv4 \
  
  -cmp 256 -partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -me_method hex \
  
  -subq 7 -trellis 1 -refs 5 -bf 0 -flags2 +mixed_refs -coder 0 -me_range 16 \
  
  -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -qmin 10 -qmax 51 \
  
  -qdiff 4 -acodec libfaac -ab 160k -ac 1 output.mp4

• node.js live streaming ffmpeg stdout to res

  24 mai 2014, par blasteye

  I want node.js to convert an extremly long audio file to mp3, and the second data is available on stdout, node.js should send it to the client for them to play.

  I’ve written the following, and while it works, the html5 audio/video tag waits until ffmpeg is 100% done transcoding, where-as I want to start playing the video while ffmpeg is doing its thing.

  var ffmpeg = childProcess.spawn('ffmpeg', [
  
     '-i', params.location, //location of the specified media file
  
     '-f', 'mp3',
  
     'pipe:1'
  
   ]);
  
   res.writeHead(200, {
  
     'Content-Type': 'audio/mp3'
  
   });
  
   ffmpeg.stdout.pipe(res);

  EDIT 1 : Not sure why, but if params.location points to a movie everything seems to work. But if its an audio file, ffmpeg doesn’t seem to be outputting to stdout until its 100% converted.

  EDIT 2 : Turns out that you can’t dump an mp4 file to stdout due to the fact that mp4 files are non Causal (http://en.wikipedia.org/wiki/Causal_system). THerefore if you use webm it works. Just make sure to compile ffmpeg with webm support (for homebrew users : brew install ffmpeg —with-vpx —with-vorbis ).

  I’ve uploaded a github gist showing two functions to send live mp3/webm transcodes : https://gist.github.com/cobookman/c1a9856a4588496b021a