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  • 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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (4136)

  • Merge remote-tracking branch ’cehoyos/master’

    4 septembre 2013, par Michael Niedermayer
    Merge remote-tracking branch ’cehoyos/master’

    * cehoyos/master :
    
  Show subtitle resolution in avcodec_string().
    

    Merged-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/utils.c

  • FFMPEG wmv conversion to flv

    25 novembre 2012, par Brandon Grossutti

    anyone using ffmpeg

    I have a fairly simple wmv exported by a user from movie maker with standard output and want to convert to .flv using

    C :>ffmpeg -i "E :\Jab Core 4 Recounters.wmv" -vcodec flv "C :\Net Projects\SVN\IntegratedAlgorithmics\src\MediaAdmin\MediaAdmin\bin\Debug\Movies\Jab Core 4 Recounters.flv" -ar 44100

    the output / error i receive is

    FFmpeg version 0.5, Copyright (c) 2000-2009 Fabrice Bellard, et al.
    
  configuration: --enable-gpl --enable-postproc --enable-swscale --enable-avfilt
    
er --enable-avfilter-lavf --enable-pthreads --enable-avisynth --enable-libfaac -
    
-enable-libfaad --enable-libmp3lame --enable-libspeex --enable-libtheora --enabl
    
e-libvorbis --enable-libxvid --enable-libx264 --enable-memalign-hack
    
  libavutil     49.15. 0 / 49.15. 0
    
  libavcodec    52.20. 0 / 52.20. 0
    
  libavformat   52.31. 0 / 52.31. 0
    
  libavdevice   52. 1. 0 / 52. 1. 0
    
  libavfilter    0. 4. 0 /  0. 4. 0
    
  libswscale     0. 7. 1 /  0. 7. 1
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
  built on Mar 16 2009 16:09:18, gcc: 4.2.4 [Sherpya]
    
[wmv3 @ 0x1c0d490]Extra data: 8 bits left, value: 0
    

    
Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000
    
/1) -> 30.00 (30/1)
    
Input #0, asf, from &#39;E:\Jab Core 4 Recounters.wmv&#39;:
    
  Duration: 00:01:55.99, start: 5.000000, bitrate: 813 kb/s
    
    Stream #0.0: Audio: wmav2, 48000 Hz, stereo, s16, 192 kb/s
    
    Stream #0.1: Video: wmv3, yuv420p, 640x480, 586 kb/s, 30 tbr, 1k tbn, 1k tbc
    

    
Output #0, flv, to &#39;C:\Net Projects\SVN\IntegratedAlgorithmics\src\MediaAdmin\Me
    
diaAdmin\bin\Debug\Movies\Jab Core 4 Recounters.flv&#39;:
    
    Stream #0.0: Video: flv, yuv420p, 640x480, q=2-31, 200 kb/s, 90k tbn, 30 tbc
    

    
    Stream #0.1: Audio: libmp3lame, 48000 Hz, stereo, s16, 64 kb/s
    
Stream mapping:
    
  Stream #0.1 -> #0.0
    
  Stream #0.0 -> #0.1
    
[wmv3 @ 0x1c0d490]Extra data: 8 bits left, value: 0
    
[libmp3lame @ 0x1c0d8d0]flv does not support that sample rate, choose from (4410
    
0, 22050, 11025).
    
Could not write header for output file #0 (incorrect codec parameters ?)

    i added th -ar switch when i got the error the first time

    the codec info i have on the file is as follows

    General
    
Complete name                    : E:\Jab Core 4 Recounters.wmv
    
Format                           : Windows Media
    
File size                        : 11.3 MiB
    
Duration                         : 2mn 0s
    
Overall bit rate mode            : Variable
    
Overall bit rate                 : 780 Kbps
    
Maximum Overall bit rate         : 949 Kbps
    
Encoded date                     : UTC 2009-03-07 07:02:41.121
    
Writing application              :  6.0.6000.16386 / Windows Movie Maker
    
Application                      : Windows Movie Maker 6.0.6000.16386
    

    
Video
    
ID                               : 2
    
Format                           : VC-1
    
Format profile                   : MP@ML
    
Codec ID                         : WMV3
    
Codec ID/Info                    : Windows Media Video 9
    
Codec ID/Hint                    : WMV3
    
Duration                         : 2mn 0s
    
Bit rate mode                    : Variable
    
Bit rate                         : 587 Kbps
    
Width                            : 640 pixels
    
Height                           : 480 pixels
    
Display aspect ratio             : 4/3
    
Frame rate                       : 30.000 fps
    
Resolution                       : 24 bits
    
Scan type                        : Progressive
    
Bits/(Pixel*Frame)               : 0.064
    
Stream size                      : 8.46 MiB (75%)
    
Language                         : en-us
    

    
Audio
    
ID                               : 1
    
Format                           : WMA2
    
Format profile                   : L3
    
Codec ID                         : 161
    
Codec ID/Info                    : Windows Media Audio 2
    
Description of the codec         : Windows Media Audio 9.2 - VBR Quality 90, 48 kHz, stereo 1-pass VBR
    
Duration                         : 2mn 0s
    
Bit rate mode                    : Variable
    
Bit rate                         : 186 Kbps
    
Channel(s)                       : 2 channels
    
Sampling rate                    : 48.0 KHz
    
Resolution                       : 16 bits
    
Stream size                      : 2.68 MiB (24%)
    
Language                         : en-us

    i see alot of people with this issue with so solution or cause

    any ideas would be helpful
    thanks in advance

  • Encoding videos for use with Adobe Live Streaming

    10 mai 2016, par FiddleMeRagged

    I have an original video coded at 20Mbps, 1920x1080, 30fps and want to convert it down to be 640x480 30fps at a range of (3 different) bitrates for use by Adobe Live Streaming.

    Should I use ffmpeg to resize and encode at the 3 bitrates then use f4fpackager to create the f4m f4f and f4x files or just use ffmpeg to reduce the resolution and then f4fpackager to encode the relevant bitrates ?

    I’ve had several tries so far, but when encoded the videos seem to play at a much larger bitrate than they’ve been encoded at. For example, if I set up the OSMF to play from my webserver, I’d be expecting my best encoded video to play at 1,500kbps but it’s way above that.

    Has anyone had any experience of encoding for use like this ?

    I’m using the following options to f4fpackager

    --bitrate=1428 --segment-duration 30 --fragment-duration 2

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