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• I am streaming mp3 music via ffmpeg to a local rtmp server then converting to hls, but am having difficulties end to end testing

  12 avril 2020, par SquirrelSenpai

  I am streaming mp3 music via ffmpeg to a local rtmp server then converting to hls, but am having difficulties end to end testing. I am know test.m3u8 playlist should be produce, however I am unable to check inside /nginx/hls/ as it is locked by www-data during operation. I have tried multiple permutation of what I thought the output hls stream would be in vlc with no luck. localhost:8080/live/test.m3u8, localhost:8080/hls/test.m3u8

  



  Any tips on effective testing would be much appreciated.

  



  Technologies involved :

  



  

  • FFMPEG

  


  • NGINX (This and the below 3 are part of a module)

  


  • HLS

  


  • RTMP

  


  



  Working :

  



  ffmpeg -hide_banner -i http://149.255.59.164:8138 -f mp3 test.mp3


  



  Seemingly working, correctly reads files, shows conversion of some kind
  
size= 362kB time=00:00:23.09 bitrate= 128.3kbits/s speed=3.21x

  



  fmpeg -hide_banner -i http://x.x.x.x:8138 -f mp3 rtmp://localhost:1935/live/test


  



  Nginx.conf

  



  user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
        worker_connections 768;
        # multi_accept on;
}

rtmp_auto_push on;

rtmp{

        server{

                listen 1935;

                chunk_size 4000;

                #one publisher, many subscribers

                application live {

                        # enable live streaming
                        live on;
                        record off;

                        # publish only from localhost
                        allow publish 127.0.0.1;
                        deny publish all;

                        # hls - required for web browser consumption
                        hls on;
                        hls_path /tmp/hls;
                        hls_fragment 3;
                        hls_playlist_length 60;

                        # disable consuming the streaming from nginx as rtmp
                        deny play all;

                }

        }

}

# HTTP can be used for accessing RTMP stats
http {

    server {

        listen      8080;

        # This URL provides RTMP statistics in XML
        location /stat {
            rtmp_stat all;

            # Use this stylesheet to view XML as web page
            # in browser
            rtmp_stat_stylesheet stat.xsl;
        }

        location /stat.xsl {
            # XML stylesheet to view RTMP stats.
            # Copy stat.xsl wherever you want
            # and put the full directory path here
            root /path/to/stat.xsl/;
        }

        location /hls {
            # Serve HLS fragments
            types {
                application/vnd.apple.mpegurl m3u8;
                video/mp2t ts;
            }
            root /tmp;
            add_header Cache-Control no-cache;
        }

        location /dash {
            # Serve DASH fragments
            root /tmp;
            add_header Cache-Control no-cache;
        }
    }
}


  


• Revision 1e9e9ce2dc : vp10 : fix entropy counts for the hp bit. The counts didn't take usehp into acco

  7 septembre 2015, par Ronald S. Bultje

  Changed Paths :
   Modify /vp10/common/entropymv.c

  
   Modify /vp10/common/entropymv.h

  
   Modify /vp10/decoder/decodemv.c

  
   Modify /vp10/encoder/encodemv.c

  
  
  vp10 : fix entropy counts for the hp bit.

  The counts didn’t take usehp into account, which means that if the
  scope of the refmv is too large for the hp bit to be coded, the value
  (always 1) is still included in the stats. Therefore, the final
  counts will not reflect the entropy of the coded bits, but rather the
  entropy of the combination of coded bits and the implied value (which
  is always 1). Fix that by only including counts if the hp bit is
  actually coded.

  See issue 1060.

  Change-Id : I19a3adda4a8662a05f08a9e58d7e56ff979be11e

• nohup >/dev/null alternative for windows

  24 décembre 2014, par Abdullah Al Mamun

  I’m running a php script which is not working properly in my windows OS but this is supposed to work in linux.

  I figured it out that nohup is not an associated tool with windows.

  $ffmpeg = 'C:\ffmpeg\bin\ffmpeg';
  
  $command = "nohup >/dev/null 2>&1 ".$ffmpeg." -i {$input_path} {$ffmpeg_string} -stats -y {$output_path} 2> {$log_path} >/dev/null &";
  
  exec( $command ); 

  So what could be my best alternatives if I want to run this code on windows.
  Detailed explanation will be greatly appreciated as I don’t know much about background process.

  nohup on windows, exec without waiting for finish