Recherche avancée

Médias (1)

Mot : - Tags -/portrait

Autres articles (98)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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 (7502)

  • ffmpeg generated video with silent audio has different stream lengths

    18 septembre 2015, par JennHarper

    I am trying to generate a video clip of a single image and add a silent audio track for concatenating with other video files.
    I can successfully create the mp4 video with the desired image and audio track BUT, according to mediaInfo, the length of the video stream and the length of the audio stream are different. They are off by up to 60 ms. As I plan to concatenate several of these image clips and other video clips, I don’t want the error to accumulate. Any thoughts or suggestions for maintaining perfect video/audio sync ?

    Here are the ffmpeg commands that I am using :

    C :\FFmpeg\bin\ffmpeg.exe -loop 1 -i myImage.jpg -codec:v libx264 -t 7 -profile:v high -preset slow -r 25 -b:v 500k -maxrate 500k -vf scale=1280:720 -y videoStreamOnly.mp4

    C :\FFmpeg\bin\ffmpeg.exe -f lavfi -i anullsrc=r=48000 -i videoStreamOnly.mp4 -shortest -c:v copy -c:a aac -strict experimental -y videoWithSilentAudioStream.mp4

  • how to trim video in h264 format using ffmpeg while preserving quality ?

    16 décembre 2020, par prisonmike11

    I'm new to ffmpeg,

    


    I'm trimming a small clip from a bluray H264 video by providing start and end duration.

    


    I tried :

    


    ffmpeg -ss 00:01:00 -i input.mp4 -to 00:02:00 -c copy output.mp4


    


    but this results in stuttering issues in start of the video. The audio and video also don't match.

    


    I tried using -c libx264 but this is taking too long and the output video has much lower bit rate.

    


    My goal is to trim as fast as possible while preserving quality. I don't care about the frame accuracy of the trim. I plan on uploading the output to youtube.

    


    what flags should I use ?

    


  • how to trim video in h264 format using ffmpeg while preserving quality ?

    16 décembre 2020, par prisonmike11

    I'm new to ffmpeg,

    


    I'm trimming a small clip from a bluray H264 video by providing start and end duration.

    


    I tried :

    


    ffmpeg -ss 00:01:00 -i input.mp4 -to 00:02:00 -c copy output.mp4


    


    but this results in stuttering issues in start of the video. The audio and video also don't match.

    


    I tried using -c libx264 but this is taking too long and the output video has much lower bit rate.

    


    My goal is to trim as fast as possible while preserving quality. I don't care about the frame accuracy of the trim. I plan on uploading the output to youtube.

    


    what flags should I use ?

    


Navigation