Recherche avancée

Médias (0)

Mot : - Tags -/formulaire

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (60)

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Personnaliser les catégories

    21 juin 2013, par

    Formulaire de création d’une catégorie
    Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire.
    Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
    Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    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 (...)

Sur d’autres sites (11012)

  • how can I play ffmpeg codecs not supported by MedicaPlayer ? [closed]

    1er septembre 2011, par Jun

    Currently, I'm using MediaPlayer to play mp4, 3gp videos and it works as it should do but now I need to play ffmpeg codecs too.

    In this case, do I have to develop my video player or is there any players from 3rd parties ?

    Thanks in advance.

  • Building for macOS, but linking in object file built for free standing

    5 novembre 2020, par RPSM

    I am building ffmpeg and I get the following error for several files. I am not specifically building with the free standing flag, so cannot see why this is happening. What does it actually mean ? Is there a problem with it, or is it an ignorable warning ? If there's a problem, does anyone have any idea how to fix it ?

    



    Building for macOS, but linking in object file (~/Git/FFmpeg/FFmpegXcode/lib/libavutil.a(imgutils.o)) built for free standing


    


  • Trimmed a video with ffmpeg ; looks fine on a Mac, but audio/video are 3 seconds out of sync with Windows default player. Huh ?

    12 avril 2021, par kaltorak

    I've got a video which looks and sounds right when I play it in Windows or on a Mac.
    
I trimmed it with ffmpeg.
    
The resulting file

    


      

    • plays fine on a Mac with QuickTime

      • 


    • throws an error on Windows QuickTime (Error -2041 : an invalid sample description was found in the movie (myfile.trimmed.mp4))

      • 


    • plays with Win10's default player (Movies and TV ?), but with the audio lagging nearly 3 seconds behind the video (as determined by me counting Mississippis, nothing more precise than that.)

      • 


    


    My original file :

    


    ffprobe -hide_banner myfile.mpg
[h264 @ 00000253d2d762c0] Increasing reorder buffer to 2
[mpegts @ 00000253d2d6fe00] PES packet size mismatch
[mpegts @ 00000253d2d6fe00] Packet corrupt (stream = 1, dts = 8467425232).
[mpegts @ 00000253d2d6fe00] Could not find codec parameters for stream 2 (Unknown: none ([151][0][0][0] / 0x0097)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'myfile.mpg':
  Duration: 00:30:00.63, start: 92282.982578, bitrate: 6249 kb/s
  Program 1
    Stream #0:0[0x1aab]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], Closed Captions, 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
    Stream #0:1[0x1abf]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, 5.1(side), fltp, 384 kb/s
    Stream #0:2[0x1ac1]: Unknown: none ([151][0][0][0] / 0x0097)
Unsupported codec with id 0 for input stream 2


    


    Stuff I notice :

    


      

    • The mpg container shouldn't hold h264 video. That messed me up, but remuxing to an mp4 container during the trimming step seemed to make it OK.

      • 


    • The start time isn't anywhere close to zero... but I don't think there's anything wrong with that.

      • 


    • The audio and video are in sync as I watch in a player, but the file contains audio starting nearly 1 second before the video. The first audio packet has pkt_pts_time=92282.982578 (matching the start reported by ffprobe, above), while the first video packet has pkt_pts_time=92283.926411

      • 


    


    So I trim it, like so...

    


    ffmpeg -hide_banner -ss 00:17:24 -i myfile.mpg -t 00:02:40 -c copy myfile.trimmed.mp4
[h264 @ 000002d5d73f4040] Increasing reorder buffer to 2
[mpegts @ 000002d5d73edbc0] PES packet size mismatch
[mpegts @ 000002d5d73edbc0] Packet corrupt (stream = 1, dts = 8467425232).
[mpegts @ 000002d5d73edbc0] Could not find codec parameters for stream 2 (Unknown: none ([151][0][0][0] / 0x0097)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 000002d5d73edbc0] PES packet size mismatch
[mpegts @ 000002d5d73edbc0] Packet corrupt (stream = 1, dts = 8467425232).
Input #0, mpegts, from 'myfile.mpg':
  Duration: 00:30:00.63, start: 92282.982578, bitrate: 6249 kb/s
  Program 1
    Stream #0:0[0x1aab]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], Closed Captions, 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
    Stream #0:1[0x1abf]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, 5.1(side), fltp, 384 kb/s
    Stream #0:2[0x1ac1]: Unknown: none ([151][0][0][0] / 0x0097)
[mp4 @ 000002d5d7e90540] track 1: codec frame size is not set
Output #0, mp4, to 'myfile.trimmed.mp4':
  Metadata:
    encoder         : Lavf58.45.100
    Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 59.94 fps, 59.94 tbr, 90k tbn, 90k tbc
    Stream #0:1: Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 384 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 9570 fps=0.0 q=-1.0 Lsize=  122587kB time=00:02:39.99 bitrate=6276.6kbits/s speed= 462x
video:114772kB audio:7545kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.220873%


    


    ffprobe -hide_banner myfile.trimmed.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'myfile.trimmed.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
  Duration: 00:02:40.96, start: 0.000000, bitrate: 6239 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], Closed Captions, 5890 kb/s, 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 384 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
    Side data:
      audio service type: main


    


    ...and i get the file that plays fine on a Mac, but not on Windows's default player.
The start time as reported by ffprobe is 0 (above), so that must've been cleaned up by either the trimming or the remuxing. When I look at frames, the first audio packet has a pkt_pts_time=0.000000, and the first video packet has a pkt_pts_time=0.452000.

    


    Where do I go next ?

    


Navigation