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• Outputing HLS m3u8 TS segment PHP-FPM Nginx

  11 avril 2016, par Krasic

  I’m reading a dynamicly generated m3u8 hls playlist from ffmpeg

  basically the file look like

  #EXTM3U
  
  #EXT-X-VERSION:3
  
  #EXT-X-TARGETDURATION:11
  
  #EXT-X-MEDIA-SEQUENCE:3
  
  #EXTINF:11.000000,
  
  2_3.ts
  
  #EXTINF:8.000000,
  
  2_4.ts
  
  #EXTINF:11.000000,
  
  2_5.ts
  
  #EXTINF:11.000000,
  
  2_6.ts
  
  #EXTINF:8.000000,
  
  2_7.ts
  
  #EXTINF:11.000000,
  
  2_8.ts

  I’m trying to find a way to limit the connection to a single connection.
  I have a Table called Connection : it save the Stream ID + User ID + Date_Start & Date_end & status

  Once a user started watching the stream it add new Data : Example

  (StreamID : (2) , userID : (3) , Date_Start : Now() , Date_end : Null , status : ON )

  once he closed the connection i would like to update the date_end with Now() & status to OFF

  Environnement :
  Nginx , PHP-FPM & FFmpeg

  i’m using the register_shutdown_function( 'shutdown' ) to write the last update

  however the problem is once the playlist is played the shutdown is executed many times duo to the m3u8 contains 6 segments , each few seconds the shutdown is executed many times again (duo the chunk list updated) while i didnt closed yet the connection .

  I’m looking a way to handle the playlist as one connection to be keeped , so the function shutdown will be Executed ONLY when client abort the connection and not while the playlist been reloaded

  Regards

• hls.js - how to subscribe to any event

  24 octobre 2016, par momomo

  First time I play a playlist, I keep getting bufferStalledError.

  I can detect this error, however, if I resolve this error then a jump or skip in the video play back occurs and it stops occurring.

  However, if i ignore it then it will play without a noticable interruption and the video keeps playing. But this error will continue to be raised but without any noticable issues.

  However, at times, the same error will result in an overflow and hls.js won’t be able to recover automatically, and no further errors are reported after such a failure than the last bufferStalled error.

  I have to restart the video through destroy and attach again resuming the play functionality hls.js is unable to do automatically or through recoverMediaErrors().

  The only problem is that I am unable to subscribe to an event that says that the video is playing, or stuck. After a bufferStalledMediaError hls.js will recover it automatically without a glitch, but sometimes it fails to do so. In both cases no more errors are reported.

  But is there maybe another event reported that says it is playing that is not an error report ?

  Is there an hls.on(Hls.Events.ALL, ... ) event ?

  What about setting up a TimeLineController ? It’s not documented.

  Reference :
  https://github.com/dailymotion/hls.js/blob/master/API.md

• FFMPEG HLS video speed is too fast

  22 mars 2016, par MM PP

  I am trying to make a .m3u8 hls playlist locally on my computer. I am using Windows 7, 32 bit.

  I am a begginner of FFMPEG, and finally I combined some commands into this :

  ffmpeg -re -rtbufsize 999999k -y -f dshow -video_size 640x360 -r 15 -i video="ManyCam Virtual Webcam" -c:v libx264 -crf 18 -profile:v main -maxrate 999999k -bufsize 99999k -pix_fmt yuv420p -flags -global_header -hls_time 10 -g 3 -hls_list_size 2 -hls_wrap 0 -start_number 1 D:\\stream\stream.m3u8 -tune zerolatency 

  The problem is that while playing the m3u8 playlist with VLC or a HLS player, the video speed is faster than normal.

  If you need more info, please comment.

  EDIT

  If I play one of the .ts files, the problem is the same.

  Thank you so much !