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• Live video broadcasting in android using front and back facing cameras [on hold]

  1er décembre 2016, par Jun Kim

  This is my first time I am posting a question on Stack Overflow.

  I am currently developing an android application. My goal is to make an app that captures and records video and broadcasts it to other mobile devices as well as web browsers like facebook live.
  (Nowadays, famous apps like Youtube, Facebook, Twitch, Periscope has this function)

  Now, I am just researching what technologies and ways to develop this app.

  I have been researching and reading a lot of blogs and documentations for the past five weeks about FFMpeg, different types of streaming technologies, types of web servers etc. I decided to use MPEG-DASH for my app and nginx server (Nginx-rtmp-module).

  While searching further, I got stuck and confused about how I can possibly capture & record video using internal camera of Android mobile devices.

  I was thinking that I could use MediaRecorder to capture & record (I could hardly find an example using MediaRecorder to record video) and use FFMpeg
  to somehow encode with the certain video and audio codecs to make a container format and send it to nginx server to broadcast other devices.
  But then.... i am not sure if this is the right way to do it...

  My questions is... I would like to know the whole process (in detail if it possible) how I can possible record and broadcast to other devices.

  The whole process of recording video using internal camera that is in user’s mobile device and send the frame to the server to broadcast to other devices seems difficult to imagine for me... Can anyone elaborate ?

  Or any suggestion about how can I reach my goal ?
  Every help would be appreciated.

• NodeMediaServer MP4 change default video resolution 540p

  11 août 2021, par Farooq Zaman

  I have setup a nginx RTMP server and the purpose is to store videos streamed from mobile devices in MP4 format for later analysis. Although mobile devices are streaming videos in 720p resolution NodeMediaServer always store video in 540p resolution. How can I change this behaviour ? Following is NodeMediaServer configuration :

  


  const nodeMediaServerConfig = {
  rtmp: {
    port: 1936,
    chunk_size: 60000,
    gop_cache: true,
    ping: 60,
    ping_timeout: 10,
  },
  http: {
    port: 8000,
    mediaroot: './media',
    allow_origin: '*',
  },
  trans: {
    ffmpeg: '/usr/bin/ffmpeg',
    tasks: [
      {
        app: 'live',
        vcParam: [
          "-c:v",
          "libx264",
          "-vf",
          "scale=720:-1",
          "-b:v",
          "2800k",
          "-bufsize",
          "4200k",
          "-preset",
          "fast",
        ],
        ac: 'aac',
        acParam:["-b:a", "128k", "-ar", 48000],
        mp4: true,
        mp4Flags: '[movflags=faststart]',
      },
    ],
  },
};


  


  Any help in this matter is highly appreciated.

  


• Evolution #4417 : Augmenter la longueur du mot de passe demandé pour créer un nouvel auteur

  24 décembre 2019, par cy_altern -

  complémentairement, pour compliquer le "brut force" des mots de passes, il y aurait l’utilisation d’un algorithme de hashage de type Argon2 (cf https://fr.wikipedia.org/wiki/Argon2) qui est conçu pour imposer un coût mémoire.
  Voir https://github.com/p-h-c/phc-winner-argon2 pour les implémentations disponibles de Argon2 (PHP > 7.2 et JavaScript OK)