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Autres articles (61)

  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (10098)

  • Revision 1e1799c9cb : examples : use alignment > 1 w/vpx_img_alloc aligned buffers improve performace.

    19 mai 2012, par James Zern

    Changed Paths : Modify /vp8_scalable_patterns.c Modify /vpxenc.c examples : use alignment > 1 w/vpx_img_alloc aligned buffers improve performace. this change brings vpxenc & vp8_scalable_patterns in line with the other examples. Change-Id : (...)

  • Publish audio to an RTMP server for real time live streaming in C or C++

    19 mai 2021, par Antenaina

    I want to publish audio stream to an RTMP server, for real time audio live streaming, from mobile device (with Android for example).
    
Suppose the mobile device has a way to yield to me those datas in real time (ex : using Oboe library). Packet by packet (a packet contains a certain number of audio frames).
    
When live streaming, there are some really custom computations to those datas that requires that I must send then little by little (packet by packet ?) to the RTMP server.
    
I'm trying to use FFMPEG for that purpose, and have similar problem with this thread's question : How to publish self made stream with ffmpeg and c++ to rtmp server ?. But the answer there is not detailed is not enough for me.
    
I tried reading FFMPEG code source, with the help of the documentation, but there are still some challenges I must face since I'm new to the streaming domain. What I need to know is :

    


      

    • How to properly configure FFMPEG for that purpose ? (AVFormatContext ?)

      • 


    • What is the proper way to write the stream (AVStream) ? (I read somewhere that the packet needs to be of a specific size, and other stuffs too)

      • 


    


    For simplicity :

    


      

    • I can handle the audio packet by packet and encoded.

      • 


    • Audio is encoded as mp3.

      • 


    • Audio has default sample rate of 44100 Hz, 320kb/s bitrate and some other details already known so that FFMPEG doesn't need to guess it.

      • 


    


    Further informations :
    
I'm using react-native. For android : native modules to communicate with Java, JNI to communicate Java with C++, Oboe to record and play audio. For iOS : not a problem for the moment.
    
I use node-media-server as RTMP server.
    
Thanks !

    


  • [C++][Linux + ffmpeg + h264 + rtsp + client] and [Window + ffmpeg + play video real time + server]

    21 avril 2015, par QuestionGuy

    I have a problem with ffmpeg and I don’t know how to continue. I have 2 computers :

    Client :

    • Run Ubuntu 14.04
    • FFmpeg installed
    • Use c++ language
    • Features : use ffmpeg to encode h264 video data from webcam of client laptop, then real time streaming to server

    Server :

    • Running Windows 7
    • FFmpeg installed
    • Use c++ language (MFC)
    • Features : Get real time data from client and show it on screen.

    I’ve just connected client to server and they can chat text data together, and I don’t have any idea to make real time video work.

    And my questions are :

    1. [Client] How to get video from webcam on laptop (using ffmpeg code), save it to buffer (raw data), encode it and send to server ?

      I use ffmpeg to get video from wc but it save to file. I really don’t want it. Code is :

      ffmpeg -f v4l2 -framerate 25 -video_size 640x480 -i /dev/video0 output.mkv

    2. [Client] How to get raw data from client, decode it and play it ?

      I have an idea to play it by using directshow in MFC.

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