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Autres articles (61)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (5230)

  • How do I debug why avconv is stalling ?

    9 juillet 2015, par Ecommerce Consultant

    I’m converting .mov files to .mpg files using avconv. The command being run by my php application is as follows :

    avconv -y -i ’$finalvideo’ -target ntsc-dvd -aspect 4:3 ’$mpgvideo’ > $logs

    I’m able to convert small .mov files to .mpg without any problems. However, I’m unable to convert videos that are over ten or fifteen minutes long. The log file is completely empty. When I run the command directly the frame stops somewhere around 34000 no matter which video I pick.

    The cpu shows 97% usage on this process, however, nothing is happening.

    OS Ubuntu 10 

    How can I gather more information about this stalled process ?

    Here’s the frozen output

    avconv version 0.7, Copyright (c) 2000-2011 the Libav developers
    
  built on Nov  3 2011 13:39:09 with gcc 4.3.3
    

    
Seems stream 0 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 23.98 (24000/1001)
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/sites/default/files/compiled_videos/573-stream.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 512
    
    compatible_brands: qt  
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.0.3
    
  Duration: 00:18:53.49, start: 0.000000, bitrate: 1430 kb/s
    
    Stream #0.0(eng): Video: h264 (Main), yuv420p, 854x480, 1387 kb/s, 25.60 fps, 23.98 tbr, 90k tbn, 180k tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
    Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16, 126 kb/s
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
[buffer @ 0x9d88820] w:854 h:480 pixfmt:yuv420p
    
[scale @ 0x9d88b60] w:854 h:480 fmt:yuv420p -> w:720 h:480 fmt:yuv420p flags:0x4
    
Incompatible sample format 's16' for codec 'ac3', auto-selecting format 'flt'
    
Output #0, dvd, to '/var/www/sites/default/files/compiled_videos/573.mpg':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 512
    
    compatible_brands: qt  
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.10.0
    
    Stream #0.0(eng): Video: mpeg2video, yuv420p, 720x480 [PAR 8:9 DAR 4:3], q=2-31, 6000 kb/s, 90k tbn, 29.97 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
    Stream #0.1(eng): Audio: ac3, 48000 Hz, stereo, flt, 448 kb/s
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
Stream mapping:
    
  Stream #0.0 -> #0.0 (h264 -> mpeg2video)
    
  Stream #0.1 -> #0.1 (aac -> ac3)
    
Press ctrl-c to stop encoding
    
[mpeg2video @ 0x9d8bf20] rc buffer underflow
    
Input stream #0.1 frame changed from rate:48000 fmt:s16 ch:2 to rate:48000 fmt:flt ch:2
    
frame=33910 fps= 91 q=2.0 size=  151922kB time=336.58 bitrate=3697.7kbits/s dup=5475 drop=530    

    Oh interesting. I used -loglevel debug -debug. I was seeing this information

    stream #0:
    
  keyframe=0
    
  duration=0.000
    
  dts=1133.449  pts=1133.533
    
  size=103
    
*** 1 dup!
    
stream #0:
    
  keyframe=0
    
  duration=0.000
    
  dts=1133.449  pts=1133.449
    
  size=104

    Until I finally received this message

    *** drop!

    I have posted my bug with libav
    http://bugzilla.libav.org/show_bug.cgi?id=67

    thanks for your help.

  • How to begin learn and understand background technology in ffmpeg with c programming ? [on hold]

    26 juin 2017, par Hoang Tuan

    I want to understand background technology in ffmpeg library same as video, audio format, encode, decode, sampling and more... but i don’t know how to begin, where to start it, and where i can’t find document or book to learn that. Could you suggest for me ?

    Thanks you so much !

  • Anomalie #3329 : Publication des documents en 2018

    25 mai 2017, par guytarr °

    Merci Francky
    http://zone.spip.org/trac/spip-zone/changeset/104642
    http://zone.spip.org/trac/spip-zone/changeset/104643

    Pour le report 3.0, il n’y a pas besoin de sql_update(’spip_documents’, array(’statut’ => ’0’), ’date_publication = ’ . sql_quote(’1970-01-01 01:33:58’)) ; si tu fais tout en une fois

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