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• How to load cross domain videos into video tag for web gl processing ?

  22 novembre 2013, par user3022391

  Current working on a project using FFMpeg and stream.m to transcode a live stream to web.m format for use in a HTML5 desktop player on chrome. All works well when sending the video to a standard video tag, however when it used in my canvas / webgl application it struggles to load the video reporting the following error repeatedly :

  Uncaught SecurityError : Failed to execute 'texImage2D' on 'WebGLRenderingContext' : the video element contains cross-origin data, and may not be loaded.

  Looking into CORS, it seems that because the website is loading on http (80) and I am streaming the converted video live from the stream.m server (which is on the same domain but uses port 8089 - this counts as cross-domain video sourcing. I've added allow policies to the .htaccess file and cross-domain.xml however still seeing the issue.

  Does anyone know if you can add custom allow-access headers to ffmpeg output or know of an alternative workaround ?

• How to : stream with ffmpeg and nginx rtmp, Ubuntu

  3 décembre 2020, par WurmD

  nginx installed with https://nginx.org/en/linux_packages.html in Ubuntu 18.04

  


  sudo apt -y install curl gnupg2 ca-certificates lsb-release ;
echo "deb http://nginx.org/packages/ubuntu `lsb_release -cs` nginx" | sudo tee /etc/apt/sources.list.d/nginx.list ;
curl -fsSL https://nginx.org/keys/nginx_signing.key | sudo apt-key add - ;
sudo apt update ;
sudo apt install nginx ;


  


  nginx up and running

  


  $ ps -aux | grep nginx
root      5602  0.0  0.0  33348   880 ?        Ss   17:03   0:00 nginx: master process nginx
nginx     5603  0.0  0.0  33744  2748 ?        S    17:03   0:00 nginx: worker process


  


  with /etc/nginx/nginx.conf

  


  rtmp {
    server {
        listen 1935;
        chunk_size 4096;

        application live {
            live on;
            record off;
            allow publish 127.0.0.1;
            deny publish all;
        }
    }
}


  


  ffmpeg -f lavfi -i testsrc -t 30 -pix_fmt yuv420p -f flv rtmp://localhost/live/test yields

  


  ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, lavfi, from 'testsrc':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
[tcp @ 0x5611668b8c00] Connection to tcp://localhost:1935 failed: Connection refused
[rtmp @ 0x5611668b8520] Cannot open connection tcp://localhost:1935
rtmp://localhost/live: Connection refused


  


  Clue :
Nothing seems to be listening on port 1935. netstat -tap | grep 1935 yields nothing
Clue2 :
Albeit ps shows app as running, systemctl status nginx.service shows app status down

  


  ● nginx.service - nginx - high performance web server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Thu 2020-12-03 19:37:17 CET; 7min ago
     Docs: http://nginx.org/en/docs/
  Process: 5709 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=1/FAILURE)


  


  Things checked given other stackoverflow questions :

  


  

  • trying to connect to rtmp://localhost/live/test and in nginx.conf the application is correctly named live

  


  • nginx.conf correctly placed at /etc/nginx/, no other nginx.conf files exist, and nginx -s reload called to make sure it is loaded

  


  • no localhost instances in the conf file, all renamed to 127.0.0.1

  


  


• How to build ffmpeg with plesk atomic multiple php

  24 août 2015, par husmen73

  I’m researching for 1 week to use ffmpeg extension on Atomic PHP versions.

  I have already installed ffmpeg and its working on Plesk Apache 5.3.3 version but not in Atomic PHP versions.

  I have configured ini file and loaded on Atomic PHP 5.6 but extension can not use on it.

  How can I find the way to work on Atomic PHP versions ?

  My server setup steps :

  • Installed CentOS 6.7
  • Install auto installer Plesk
  • Install Atomic PHP (from wget -q -O - http://www.atomicorp.com/installers/atomic |sh)
  • Install ffmpeg
  • Install Imagick
  • Configured ffmpeg and imagick ini files.