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Autres articles (39)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • 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 (...)

  • 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 (8033)

  • Augment FFmpeg command to apply to entire folder ? (Windows)

    10 novembre 2022, par Dee Gee

    I've got the command below working as I would like on individual files, but would like to be able to run it on all videos in a folder ( 600). Can anyone help me augment this to auto create the file name and run on all .mp4 files in a folder ?

    


    Test folder would be : "c :\users\owner\videos\test files" in this example.

    


    ffmpeg -ss 00:00:03.000 -i "c:\users\owner\videos\test files\test1.mp4" -vf "crop=w='min(iw\,ih)':h='min(iw\,ih)',scale=720:720,setsar=1" -vframes 1 test01.jpg


    


  • Splitting single 32-channel audio file into 32 mono audio files using ffmpeg

    16 janvier 2015, par user1066157

    I am trying to split a single 32-channel audio file in .caf format to 32 mono audio files in signed 16 bit little endian .wav format using ffmpeg, but I can’t figure out how to accomplish this exactly. I have tried to do :

    ffmpeg -i myAudio.caf -acodec pcm_s16le -map 0:0 channel_01.wav -map 0:1 channel_02.wav ...

    But this returns a "Stream map ’0:1’ matches no streams" error. Surely I am missing something entirely obvious here... Most likely I am confused about how to reference each individual channel in my single, multi-channel audio file. Could someone show me the right way of doing this perhaps ?

  • Raw extraction of frames from a movie

    29 septembre 2016, par vkubicki

    I would like to extract images from a grayscale mj2 movie. Each pixel is encoded using 16 bits. Since this is a technical movie, I need to extract the value at each pixel without processing, as those values linearly map to a physical quantity (a heatmap from an infrared camera). I am using Scala, and I do not find any suitable solution for a direct extraction (either in Scala or in Java, but I am a beginner). Therefore I intend to use ffmpeg to extract individual frames on the disk, then load them as BufferedImage in Scala and process them.

    Is this a good approach ? Which format should I use to avoid any transformation in the data ? I want each extracted frame to ba as "raw" as possible ? Is it possible to directly output a csv containing the aforementionned values ?

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