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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • 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 (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

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  • FFmpeg : A few errors including invalid frame size and incomplete frame

    8 février 2019, par Abs

    I use this ffmpeg command to take clips from a large VOB files that is on a DVD :

    ffmpeg.exe -i E:\VTS_02_2.vob -ss 00:00:57 -t 00:16:15 vids\VTS_02_2.vob

    It worked first for a VOB file but then I got these errors :

    c:\ffmpeg>ffmpeg.exe -i E:\VTS_02_2.vob -ss 00:00:57 -t 00:16:15 vids\VTS_02_2.vob
    
FFmpeg version SVN-r15625, Copyright (c) 2000-2008 Fabrice Bellard, et al.
    
  configuration: --enable-memalign-hack --enable-postproc --enable-swscale --enable-g
    
l --enable-libfaac --enable-libfaad --enable-libgsm --enable-libmp3lame --enable-libv
    
rbis --enable-libtheora --enable-libx264 --enable-libxvid --disable-ffserver --disabl
    
-vhook --enable-avisynth --enable-pthreads
    
  libavutil     49.12. 0 / 49.12. 0
    
  libavcodec    52. 0. 0 / 52. 0. 0
    
  libavformat   52.22. 1 / 52.22. 1
    
  libavdevice   52. 1. 0 / 52. 1. 0
    
  libswscale     0. 6. 1 /  0. 6. 1
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
  built on Oct 16 2008 05:40:02, gcc: 4.2.4 (TDM-1 for MinGW)
    
Input #0, mpeg, from 'E:\VTS_02_2.vob':
    
  Duration: 00:17:11.61, start: 1031.828511, bitrate: 8326 kb/s
    
    Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], 9640
    
kb/s, 25.00 tb(r)
    
    Stream #0.1[0x80]: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
    
File 'vids\VTS_02_2.vob' already exists. Overwrite ? [y/N] y
    
Output #0, svcd, to 'vids\VTS_02_2.vob':
    
    Stream #0.0: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], q=2-31, 200
    
kb/s, 25.00 tb(c)
    
    Stream #0.1: Audio: mp2, 48000 Hz, stereo, s16, 64 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
Press [q] to stop encoding
    
[ac3 @ 026D3990]frame sync error
    
Error while decoding stream #0.1
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
[mpeg2video @ 0141B780]ac-tex damaged at 40 2
    
[mpeg2video @ 0141B780]invalid mb type in B Frame at 3 12
    
[mpeg2video @ 0141B780]00 motion_type at 15 16
    
[mpeg2video @ 0141B780]mb incr damaged
    
[mpeg2video @ 0141B780]00 motion_type at 2 21
    
[mpeg2video @ 0141B780]00 motion_type at 44 22
    
[mpeg2video @ 0141B780]ac-tex damaged at 43 24
    
[mpeg2video @ 0141B780]Warning MVs not available
    
[mpeg2video @ 0141B780]concealing 765 DC, 765 AC, 765 MV errors
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
[mpeg2video @ 0141B780]ac-tex damaged at 5 9
    
[mpeg2video @ 0141B780]00 motion_type at 21 13
    
[mpeg2video @ 0141B780]ac-tex damaged at 1 20
    
[mpeg2video @ 0141B780]mb incr damaged
    
[mpeg2video @ 0141B780]00 motion_type at 30 30
    
[mpeg2video @ 0141B780]Warning MVs not available
    
[mpeg2video @ 0141B780]concealing 450 DC, 450 AC, 450 MV errors
    
[ac3 @ 026D3990]frame CRC mismatch
    
[ac3 @ 026D3990]incomplete frame
    
[ac3 @ 026D3990]invalid frame size
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
[mpeg2video @ 0141B780]00 motion_type at 38 15
    
[mpeg2video @ 0141B780]00 motion_type at 30 34
    
[mpeg2video @ 0141B780]Warning MVs not available
    
[mpeg2video @ 0141B780]concealing 254 DC, 254 AC, 254 MV errors
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
[mpeg2video @ 0141B780]ac-tex damaged at 7 6
    
[mpeg2video @ 0141B780]concealing 1350 DC, 1350 AC, 1350 MV errors
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
[ac3 @ 026D3990]incomplete frame
    
[ac3 @ 026D3990]invalid frame size
    
frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    
frame=    0 fps=  0 q=0.0 Lsize=       0kB time=10000000000.00 bitrate=   0.0kbits/s
    

    
video:0kB audio:0kB global headers:0kB muxing overhead -1.#IND00%

    Is there a way to force ffmpeg to just give me an output ?

  • Use fluent-ffmpeg to tell if a file is a video or audio

    8 mai 2021, par afterglowlee

    I am using node-fluent-ffmpeg module in NodeJS. It is very good that fluent-ffmpeg provides functions to get the metadata of a video and audio file.

    



    https://github.com/schaermu/node-fluent-ffmpeg#reading-video-metadata

    



    I have tried on Mac OS to use the "resolution" attribute in the metadata to tell if a file is audio only or video, i.e. if both resolution.w and resolution.h are 0, then this file is an audio. This work fine on Mac OS. But some strange things happened that this doesn't work on Windows platform (I have tried Windows 7 64bit and Windows 2008) using the latest ffmpeg. Even though I put a .mp3 file through fluent-ffmpeg,the result looks something like this :

    



    video:
{
  container:'mp3',
  ...
  resolution: {w:300,h:300},
  resolutionSquare: {w:300,h:300},
  aspectString: '1:1',
  ...
}
audio:
{
  codec:'mp3',
  bitrate:64,
  sample_rate:44100,
  stream:0,
  channels:1
}


    



    I am not why there is a "resolution" since it is a pure audio file. So is there any solid way to find out if the file is audio only or video from the metadata ? Or should I use ffmpeg commandline to find it out ?

    


  • avcodec/bitstream : Remove outdated comment

    29 août 2020, par Andreas Rheinhardt
    avcodec/bitstream : Remove outdated comment

    The comment referred to the INIT_VLC_USE_STATIC flag which has been
    
removed in 2009 in 595324e143b57a52e2329eb47b84395c70f93087 ; the
    
function it referred to was removed even earlier in commit
    
83422c1940d963d395a64bee0cbb9c637192ce8c in 2008.
    

    Reviewed-by : Paul B Mahol <onemda@gmail.com>
    
Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
    • [DH] libavcodec/bitstream.c

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