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  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (6910)

  • How to split each channel data of the recording [on hold]

    4 décembre 2018, par Mike

    During the mass production process, the 4-channel data of the microphone recording is split into the data of each channel.

    How to use ffmpeg split each channel data of the recording

  • Do I need an AVFormatContext for decoding raw audio data ?

    4 décembre 2023, par CheekyChips

    I am streaming encoded audio data to my program, in raw byte arrays. The audio data could have any encoding but when I receive the data I will know the encoding, sample rate, etc, so I know how to interpret it. Using ffmpeg/libav libraries, I want to decode the audio chunks when I receive them and do some processing with them (e.g. resampling). My question is, since I am getting raw encoded audio data that is not wrapped in a file format, do I still need to create a AVFormatContext and use av_read_frame() to get the encoded AVPacket ? Or should I just create an AVPacket using av_packet_from_data(AVPacket *pkt, uint8_t *data, int size) and manually set the properties like encoding, sample rate, etc ? It is my understanding that AVFormatContext is meant for representing file formats, i.e. wrappers, so I don't know if it would work if I use raw encoded audio data (which I would access through a custom AVIOContext). Also, since I want to support lots of different audio codecs as input, I don't know if the different frame sizes for different codecs will make it difficult to create an AVPacket, if I have the wrong number of samples in my data array, so maybe an AVFormatContext would be better.

    


    Which is the better approach for decoding raw encoded audio chunks - creating an AVFormatContext or AVPackets ?

    


  • libav : Filling AVFrame with RGB24 sample data ?

    31 mai 2012, par Ashika Umanga Umagiliya

    I am trying to fill sample data for a AVFrame initialized with RGB24 format.
    I use following code snippet to populate RGB data.
    But in the encoded video,I can only see grayscale strip covering only 1/3 of the videoframe.
    This code snippet suppose to fill only Red color.
    Any tips what Im doing wrong here ?

    AVFrame *targetFrame=.....
    
int height=imageHeight();
    
int width=imageWidth();
    

    

    
  for(y=0;ydata[0][(y* width)+x]=(x%255); //R  
    
   targetFrame->data[0][(y* width)+x+1]=0;     //G
    
   targetFrame->data[0][(y* width)+x+2]=0;     //B
    

    

    
  }
    
   }

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