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• Inputting Audio Stream to FFMPEG

  5 avril 2018, par Wijaya

  I’m building a real time chat application with C# and ffmpeg.exe. My requirement is to get a memory stream from Microsoft Speech API and feed it to ffmpeg process in real time. I can take a memory stream from Microsoft Speech API. I’m using following code to create the memory stream.

          using (MemoryStream stream = new MemoryStream())
  
          {
  
              MemoryStream streamAudio = new MemoryStream();
  
              System.Media.SoundPlayer m_SoundPlayer = new System.Media.SoundPlayer();
  
              _speechSynthesizerVisemesSender.SetOutputToWaveStream(streamAudio);
  
              _speechSynthesizerVisemesSender.SetOutputToNull();
  
              stream.WriteTo(proc.StandardInput.BaseStream);
  
          }   

  I’m already using another datapipe with another command to feed video content to ffmpeg. But I couldn’t find a stable solution to feed audio through a datapipe. This article briefly explains about audio datapipe. I’m using following command to stream audio.

  "ffmpeg -re -f s16le -i pipe:wav -f mpegts udp://127.0.0.1:1234"

  But it is not working with the datapipe. If I try the command with mp3 or wav file, it works.

• Best approach to set up live video streaming between HoloLens2 and Desktop PC

  19 mai 2021, par SilverLife

  First of all, I am sorry for this question. I know its more asking for an advice than asking about any coding problems. Unfortunately I don´t know where else I should ask such a question, so please be patient. (I am open for any recommendations)

  


  Since a while I am searching for a promising approach to stream live videos from a desktop PC via network to my HoloLens 2 unity application. The video transfer should be within a encapsulated network without internet access. Therefore a direct connection between both devices without any signaling- or web-servers would be desirable, if possible. For now we are thinking about sending the stream via ffmpeg and receiving it somehow in the unity application.
So far I came across MixedReality-WebRTC and ffmpegInterop. Unfortunately as I read, WebRTC needs at least some kind of signaling server which manages the connection between the clients. ffmpegInterop seems to be really difficult to integrate into unity.

  


  I am completely new to the topic of low latency video streaming and a bit lost in this complex environment. Can anybody give me an advice about a promising and extendable way to receive a low latency video stream ?

  


• Evolution #4754 : Mettre à jeu le jeu des icônes de extensions

  30 avril 2021, par b b

  Amha, SVG partout et zou, et si nécessaire on pourra générer du PNG en masse à partir des SVG.

  Je proposais donc le pack Yaru https://github.com/ubuntu/yaru/tree/master/icons/src/fullcolor/mimetypes (icônes d’Ubuntu) complet, sobre mais il est trop coloré et "en relief" maintenant qu’on est plutôt en mode flat sur le jeu d’icônes du privé, exemples :

  https://github.com/ubuntu/yaru/blob/master/icons/src/fullcolor/mimetypes/text-markdown.svg
  https://github.com/ubuntu/yaru/blob/master/icons/src/fullcolor/mimetypes/x-office-spreadsheet.svg

  Sinon, il y a aussi Papirus & Vimix, et surtout Numix qui est très fourni :

  https://github.com/PapirusDevelopmentTeam/papirus-icon-theme/blob/master/Papirus/64x64/mimetypes/application-pdf.svg
  https://github.com/vinceliuice/vimix-icon-theme/blob/master/src/scalable/mimetypes/application-pdf.svg
  https://github.com/numixproject/numix-icon-theme/blob/master/Numix/64/mimetypes/application-pdf.svg