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Autres articles (60)

  • 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.

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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 (7885)

  • using ffmpeg to convert raw audio data to wav file

    10 juillet 2017, par ingeniouslyfowl

    I have a text file that contains some raw data that I generated from a wav file. I read in a signal from the wav file, and then used

    fid = open("test.raw", 'write')
    fid.write(data.tostring())

    to write the raw data to a file. Currently, I’m doing this because I want to be able to append to this file as needed without having to change header information. I’m not concatenating multiple audio files, just processing parts of a signal and I don’t want to have a potentially enormous signal in memory. When I try to use ffmpeg to convert this data using

    ffmpeg -i test.raw output.wav

    I end up getting the error : test.raw: Invalid data found when processing input. I’ve also been going through the ffmpeg docs but nothing I’ve tried seems to be working.

  • encode x264(libx264) raw yuv frame data

    26 juin 2015, par Mohamed El-Sayed

    I am trying to encode an MP4 video using raw YUV frames data, but I am not sure how can I fill the plane data (preferably without using other libraries like ffmpeg)

    The frame data is already encoded in I420, and does not need conversion.

    Here is what I am trying to do :

    const char *frameData = /* Raw frame data */;
    

    
x264_t *encoder = x264_encoder_open(&param);
    
x264_picture_t imgInput, imgOutput;
    
x264_picture_alloc(&imgInput, X264_CSP_I420, width, height);
    

    
// how can I fill the struct data of imgInput
    

    
x264_nal_t *nals;
    
int i_nals;
    
int frameSize = x264_encoder_encode(encoder, &nals, &i_nals, &imgInput, &imgOutput);

    The equivalent command line that I have found is :

     x264 --output video.mp4 --fps 15 --input-res 1280x800 imgdata_01.raw

    But I could not figure out how the app does it.

    Thanks.

  • encode x264(libx264) raw yuv frame data

    26 juin 2015, par Mohamed El-Sayed

    I am trying to encode an MP4 video using raw YUV frames data, but I am not sure how can I fill the plane data (preferably without using other libraries like ffmpeg)

    The frame data is already encoded in I420, and does not need conversion.

    Here is what I am trying to do :

    const char *frameData = /* Raw frame data */;
    

    
x264_t *encoder = x264_encoder_open(&param);
    
x264_picture_t imgInput, imgOutput;
    
x264_picture_alloc(&imgInput, X264_CSP_I420, width, height);
    

    
// how can I fill the struct data of imgInput
    

    
x264_nal_t *nals;
    
int i_nals;
    
int frameSize = x264_encoder_encode(encoder, &nals, &i_nals, &imgInput, &imgOutput);

    The equivalent command line that I have found is :

     x264 --output video.mp4 --fps 15 --input-res 1280x800 imgdata_01.raw

    But I could not figure out how the app does it.

    Thanks.

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