Recherche avancée

Médias (5)

Mot : - Tags -/open film making

Autres articles (42)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • 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

  • 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 (...)

Sur d’autres sites (6300)

  • Seeking Guidance on Audio Development Libraries for Playing Various Music Formats on iOS [closed]

    3 décembre 2023, par FaiChou

    I am exploring audio development and am overwhelmed by the numerous libraries available :

    


      

    • AVFoundation

      • 


    • MediaPlayer

      • 


    • AVFAudio

      • 


    • Audio Engine

      • 


    • CoreAudio

      • 


    • AudioToolbox

      • 


    • Audio Unit

      • 


    


    Which of these should I use to play both network or local music files (flac/wav/mp3/aac/wma/ogg) ? What are their specific roles ?

    


    My understanding is that I should use ffmpeg for demuxing to unpackage, then decode the stream to get PCM samples, possibly using Audio Engine for playback. Is this a software decoding method ? For Apple-supported formats like mp3, can I bypass ffmpeg for decoding ? Which library would be most suitable in this case ?

    


    Additionally, how do I extract metadata (song name, artist, cover, lyrics, etc.) from music files ? Apple's own solutions seem to support only ID3 or iTunes tags. How should I handle other formats like wav/flac ?

    


    The two links below are the resources I've referenced, but they seem outdated. My search for newer, reliable explanations has been fruitless.

    


    


  • Broadcasting video from the camera to YouTube

    17 octobre 2022, par vernise

    I want to stream video on YouTube. But there are a lot of restrictions. Firstly, I want to do it via an intermediate server. If there is no connection, the broadcast will not complete. Instead, an error will be displayed on the broadcast. This is due to the fact that the camera is close to the battle line. A blackout is not an uncommon occurrence. Also due to the limitations of YouTube (maximum 12 hours of broadcasting time to save), the broadcast has to start twice a day. I tried to implement transmission via FFmpeg and UDP to an intermediary server (I'm using a simple webcam), but the latency at this stage is more than 30 seconds. Any suggestions would be appreciated.

    


  • Why does Youtube player stretch MPEG1/2 video not H.264 ?

    25 juin 2017, par Maru

    I want to upload the video on Youtube and I have this particular MKV file.

    and I used ffmpeg to convert it to MP4 and hard code the ass subtitle into it.

    Now my question is

    When I simply tried converting the video without a sub and uploaded on Youtube,
    so it retained its original vcodec.

    ffmpeg -i "input.mkv" -c:v copy -c:a aac "output.mp4"

    The video (vcodec MPEG-1/2) is played with 16:9 ratio.

    However, when I put a sub on it, so the video need to be re-encoded.
    (In this case, I chose to preserve the quality by making it lossless.)

    ffmpeg -i "input.mkv" -preset veryslow -crf 0 -c:a aac -vf "ass=sub.ass" "output.mp4"

    Now the subbed video has vcodec of H.264.

    However, Youtube player keep its original aspect of 720x480 and there is a black bar on the side of the video.

    Therefore, I am curious why is it such a case ? even though VLC told me that both has the same resolution of 720x480.

    Furthermore, is there anyway I can adjust the aspect ratio on Youtube ?

    I know that I can simply scale the video with ffmpeg,

    but I was wondering if there is anyway I can tell Youtube to play the aspect ration that I want ? I think the formatting tags no longer works....

Navigation