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Autres articles (98)

  • 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 (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (7846)

  • FFMPEG How to merge several videos to one file with fade effect ?

    10 juin 2016, par user2455079

    Need to merge several videos to one (for example 5 videos) with simple fade transition (video length various from file to file) if resolution is larger than 1280x720 must be resized proportionally and add sound track mp3 file to whole video. (Video files doesn’t contain audio)

    Only found this solution :
    http://superuser.com/questions/778762/crossfade-between-2-videos-using-ffmpeg
    But uses static file length in parameters...

  • Videos written with moviepy on amazon aws S3 are empty

    10 avril 2019, par cellistigs

    I am working on processing a dataset of large videos ( 100 GB) for a collaborative project. To make it easier to share data and results, I am keeping all videos remotely on an amazon S3 bucket, and processing it by mounting the bucket on an EC2 instance.

    One of the processing steps I am trying to do involves cropping the videos, and rewriting them into smaller segments. I am doing this with moviepy, splitting the video with the subclip method and calling :

    subclip.write_videofile("PathtoS3Bucket"+VideoName.split('.')[0]+'part' +str(segment)+ '.mp4',codec = 'mpeg4',bitrate = "1500k",threads = 2)

    I found that when the videos are too large (parameters set as above) calls to this function will sometimes generate empty files in my S3 bucket ( 10% of the time). Does anyone have insight into features of moviepy/ffmpeg/S3 that would lead to this ?

  • Join videos without interruption with removing extra scenes automatically

    19 janvier 2014, par RarLines

    I've tens of splitted videos from a video.

    My english is poor so I will try explain with a simple example :

    The original video scenes like so: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14

    But I had never the original video. I've these videos :

    Video_1.part scenes: 1, 2, 3, 4, 5
    
Video_2.part scenes: 5, 6, 7, 8, 9 (5 is extra !)
    
Video_3.part scenes: 9, 10, 11, 12, 13, 14 (9 is extra !)

    When I try to concatenate (or join, merge, combine...etc) these videos with using ffmpeg, the scenes the output file are liked that :

    The output video scenes: 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9, 10, 11, 12, 13, 14

    As you can see, when I watch the output video there are interruptions between videos.

    Is there any technical way to join videos without interruption (or nonstop, continuous...etc) ?

    Please note that, my example is so simple. I'm not sure that the splitted videos have regularly extra scenes. If I was sure, I could crop equally. Maybe the length of extra scenes are equal. But I couldn't check.

    Hope you will show an intelligent method. Thanks

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