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Autres articles (82)

  • 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 (...)

  • Participer à sa documentation

    10 avril 2011

    La documentation est un des travaux les plus importants et les plus contraignants lors de la réalisation d’un outil technique.
    Tout apport extérieur à ce sujet est primordial : la critique de l’existant ; la participation à la rédaction d’articles orientés : utilisateur (administrateur de MediaSPIP ou simplement producteur de contenu) ; développeur ; la création de screencasts d’explication ; la traduction de la documentation dans une nouvelle langue ;
    Pour ce faire, vous pouvez vous inscrire sur (...)

  • 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 (...)

Sur d’autres sites (9544)

  • Revision 52813 : if (!defined("_ECRIRE_INC_VERSION")) return ; sur tout fichier PHP pour ...

    7 octobre 2011, par kent1@… — Log

    if (!defined("_ECRIRE_INC_VERSION")) return ; sur tout fichier PHP pour sécurité future principalement

  • FFmpeg stops at once after start streaming

    15 avril 2014, par Byte

    I use FFmpeg like this :

    ffmpeg -i "http://xxx/mpegts" -map 0:2 -map 0:0 -vcodec copy -acodec copy -f flv rtmp://localhost/live/xxx

    At once after start i see this :

    ffmpeg version 0.8.10-4:0.8.10-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
    
built on Feb  6 2014 20:56:59 with gcc 4.6.3
    
*** THIS PROGRAM IS DEPRECATED ***
    
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
    
[h264 @ 0xdec460] non-existing PPS referenced
    
[h264 @ 0xdec460] non-existing PPS 0 referenced
    
[h264 @ 0xdec460] decode_slice_header error
    
[h264 @ 0xdec460] no frame!
    
... (previous 4 lines repeats 5-6 times)
    
[mpegts @ 0xde27a0] max_analyze_duration reached
    
[mpegts @ 0xde27a0] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mpegts, from 'http://xxx/mpegts':
    
  Duration: N/A, start: 63077.826856, bitrate: 255 kb/s
    
  Program 1 
    
    Stream #0.0[0x44](eng): Audio: aac, 48000 Hz, stereo, s16, 122 kb/s
    
    Stream #0.1[0x45](rus): Audio: aac, 48000 Hz, stereo, s16, 132 kb/s
    
    Stream #0.2[0x46]: Video: h264 (Constrained Baseline), yuv420p, 720x576 [PAR 64:45 DAR 16:9], 26.51 fps, 25 tbr, 90k tbn, 50 tbc
    
Output #0, flv, to 'rtmp://localhost/live/xxx':
    
  Metadata:
    
    encoder         : Lavf53.21.1
    
    Stream #0.0: Video: [7][0][0][0] / 0x0007, yuv420p, 720x576 [PAR 64:45 DAR 16:9], q=2-31, 1k tbn, 25 tbc
    
    Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, 122 kb/s
    
Stream mapping:
    
  Stream #0.2 -> #0.0
    
  Stream #0.0 -> #0.1
    
Press ctrl-c to stop encoding
    
developer@myhost:

    And it is all. Process stops. In RTMP server i see new connection what at once disconnected.
    What may be wrong ?

    Thanks.

  • Compress / Reduce file size of VIDEO

    2 avril 2014, par rishiJasapara

    I currently have a system in place where the user can upload a MP4 file and the same is available for download on mobile devices. But sometimes, the videos are more than 5MB in size and back here in my country, majority of the population uses 2G. So it typically takes 15-20 minutes to download large videos.

    Is there any way in which I can compress MP4 files while they are being uploaded and then save them in the folder so that instead of a 5MB video, I get a 2MB video which takes relatively less time to download. File format will always be MP4 only.

    I know of FFMPEG-PHP, but as far as I read, it only supports extracting information of the video and for video conversion. I could not find any reference for VIDEO COMPRESSION. I would be grateful if you could guide me on this.

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