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  • 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 (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (15032)

  • What is the best way to generate dynamic videos from template in php or laravel ? [closed]

    2 octobre 2024, par Jacopo944

    I was trying to find a way to generate videos from some templates with a mechanism similar to what happens with DOMpdf that allow to inject a blade, that can use dynamic variables to generate different content based on data, to generate a dynamic PDF that can store dynamic variables. I know that there is FFMPEG but it is not used directly to do so or maybe i don't understand how to do it. Is there someone that found a better way ? a simple and efficient way to accomplish that task ?

    


    i tried to find some resources online but there were very few answers to my problem.

    


  • opencv cannot read MP4 file from sony camcorder

    7 juin 2016, par Jundong

    The sony camcorder recorded video in MP4 format. I am reading the file by

    import cv2
    
vid = cv2.VideoCapture('sample.MP4')

    my OpenCV version is 2.4.8, as a Python module.

    The codec of the ’sample.MP4’ is H.264, Linear PCM.

    ffprobe sample.MP4

    returns :

    > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C0004.mp4':   Metadata:
    
>     major_brand     : XAVC
    
>     minor_version   : 16785407
    
>     compatible_brands: XAVCmp42iso2
    
>     creation_time   : 2016-06-06 13:41:51   Duration: 00:00:15.02, start: 0.000000, bitrate: 50439 kb/s
    
>     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/iec61966-2-4), 1920x1080 [SAR 1:1 DAR 16:9],
    
> 48655 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
>     Metadata:
    
>       creation_time   : 2016-06-06 13:41:51
    
>       handler_name    : Video Media Handler
    
>       encoder         : AVC Coding
    
>     Stream #0:1(und): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, 2 channels, s16, 1536 kb/s (default)
    
>     Metadata:
    
>       creation_time   : 2016-06-06 13:41:51
    
>       handler_name    : Sound Media Handler
    
>     Stream #0:2(und): Data: none (rtmd / 0x646D7472), 245 kb/s (default)
    
>     Metadata:
    
>       creation_time   : 2016-06-06 13:41:51
    
>       handler_name    : Timed Metadata Media Handler 
    
> Unsupported codec with id 0 for input stream 2

    It seems that the codec for h.264 is missing. The version of my FFmpeg is 3.0.

    I tried avconv -i sample.MP4 -c:a copy -c:v copy sample_converted.mp4 to convert the sample.MP4 to sample_converted.mp4, this command line did not work. The command ffmpeg -i sample.mp4 sample_converted.mp4 worked ; however, it compromised the video quality badly.I used an online video converter : http://www.online-convert.com/ (which output nice quality video in mp4 format, but it has size limitation for free users)
    to convert the MP4 to mp4, the command in Terminal as below :

    ffprobe 'sample_converted.mp4'

    returns

    > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C0001_converted.mp4':  
    
> Metadata:
    
>     major_brand     : isom
    
>     minor_version   : 512
    
>     compatible_brands: isomiso2avc1mp41
    
>     encoder         : Lavf57.36.100   Duration: 00:00:02.02, start: 0.000000, bitrate: 16777 kb/s
    
>     Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 16801 kb/s, 59.94
    
> fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)
    
>     Metadata:
    
>       handler_name    : VideoHandler
    
>     Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    
>     Metadata:
    
>       handler_name    : SoundHandler

    Obviously, the encoders, handler_names etc. of the sample.MP4 and sample_converted.mp4 are different. Any idea using FFmpeg or OpenCV to convert this raw video from camcorder to the readable format without compromising the video quality ?

  • How can I make sure trimming in ffmpeg with -c:v copy is accurate

    9 avril 2020, par Angelo

    I looked at many things online and I understand it's better to re-encode if you want precision.

    



    But for instance, I have the following command :

    



    -ss 00:00:09 -i "input.mp4" -c:v copy -c:a copy -vframes 600 "output.mp4


    



    Where 600 is calculated using the video's FPS and duration, in this case 10 seconds from an 60FPS video. Can I expect to get something accurate with this all the time ? I tested many variants but this seems to be doing ok for the couple videos I tested for.. And if not, can I really ever get complete ACCURACY with copying, or must I stick to H264 for instance ?

    


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