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Autres articles (16)

  • 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 (...)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

Sur d’autres sites (4776)

  • C run linux shell command(fmpeg) slower than typing directly in terminal

    11 novembre 2014, par dadylonglegs

    I’m writing an application that execute a linux shell command (ffmpeg) from my C code. Such as :

    char command[2000];
    
sprintf(command, "ffmpeg -i %s/%s -r 1 -vf scale=-1:120 -vframes 1 -ss  00:00:00 %s.gif", publicFolder, mediaFile, mediaFile);
    
system(command);

    To extract video thumbnail from a specific video. But the strange that it is too much slower when executing shell command form C compare to typing directly to the terminal. I have no idea about this.
    Can anybody help me pls ?. Thanks in advance.

  • Error splitting .mov file with ffmpeg

    5 novembre 2011, par Deepak Lamichhane

    I have used the following ffmpeg command to split the given media file.

    ffmpeg -i test.mov -ss 00:00:00 -t 00:07:00 -acodec copy -vcodec copy test1.mov

    The video "test.mov" has the following characteristics :

    Dimensions: 320 * 240
    
Codecs: MPEG-4 Video, ACC
    
Duration: 00:45
    
Audio channels: 2
    
Total bit rate: 1,292

    But while splitting it shows the following errors

    FFmpeg version 0.6, Copyright (c) 2000-2010 the FFmpeg developers
    
built on Apr 29 2011 12:03:13 with gcc 4.2.1 (Apple Inc. build 5664)
    
configuration: --disable-debug --prefix=/usr/local/Cellar/ffmpeg/0.6 --enable-shared --enable-pthreads --enable-nonfree --enable-gpl --disable-indev=jack --enable-libx264 --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx
    
  libavutil     50.15. 1 / 50.15. 1
    
  libavcodec    52.72. 2 / 52.72. 2
    
  libavformat   52.64. 2 / 52.64. 2
    
  libavdevice   52. 2. 0 / 52. 2. 0
    
  libswscale     0.11. 0 /  0.11. 0
    
[aac @ 0x10181e200]channel element 1.0 is not allocated
    
    Last message repeated 215 times
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x10180b000]max_analyze_duration reached
    

    
Seems stream 0 codec frame rate differs from container frame rate: 30000.00 (30000/1) -> 29.97 (30000/1001)
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/sts-107-/Dev/cloudfactory/tmp/media/test.mov':
    
  Duration: 00:00:45.14, start: 0.000000, bitrate: 1297 kb/s
    
    Stream #0.0(eng): Video: mpeg4, yuv420p, 320x240 [PAR 1:1 DAR 4:3], 1195 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc
    
    Stream #0.1(eng): Audio: aac, 0 channels, s16, 97 kb/s
    
File '/Users/sts-107-/Dev/cloudfactory/tmp/media/ten/ten-1.mov' already exists. Overwrite ? [y/N] y
    
[mov @ 0x10181cc00]sample rate not set
    
Output #0, mov, to '/Users/sts-107-/Dev/cloudfactory/tmp/media/ten/ten-1.mov':
    
    Stream #0.0(eng): Video: mpeg4, yuv420p, 320x240 [PAR 1:1 DAR 4:3], q=2-31, 1195 kb/s, 90k tbn, 30k tbc
    
    Stream #0.1(eng): Audio: libfaac, 0 channels, 97 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
Could not write header for output file #0 (incorrect codec parameters ?)
    
""

    I couldn't figure out whats the problem.

    Any suggestions are most welcome
    Thank you in advance !!!

  • 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.

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