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  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • Organiser par catégorie

    17 mai 2013, par

    Dans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
    Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
    Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...)

Sur d’autres sites (13057)

  • ffmpeg : save separate frames as still gifs

    7 novembre 2013, par Eugene M

    The question is simple : I don't want ffmpeg to create an animated GIF from given video stream, I want separate frames, each in GIF format. But when I set output file to something like frame%09d.gif ffmpeg tends to create an animation (and stores it exactly as frame%09d.gif). The same for -f gif option.

    Of course, I could save PNGs and use ImageMagic's convert utility to transform them to GIFs, but I don't want any additional invocation overhead because I'm dealing with live streams and going to crunch large amounts of data.

    Here is what I do, nothing special :

    ffmpeg -i http://brightcove03-f.akamaihd.net/valgbodmandag1378107345_1_300k@80362 -f gif -y frame_%09d.gif
    

    
ffmpeg version N-54643-g15cee5e Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jul 11 2013 03:35:11 with gcc 4.7.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnu
    
tls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --ena
    
ble-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger -
    
-enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-lib
    
vpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 39.100 / 52. 39.100
    
  libavcodec     55. 18.102 / 55. 18.102
    
  libavformat    55. 12.101 / 55. 12.101
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 80.100 /  3. 80.100
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
[flv @ 00000000002cb700] Stream discovered after head already parsed
    
Input #0, flv, from 'http://brightcove03-f.akamaihd.net/valgbodmandag1378107345_1_300k@80362':
    
  Metadata:
    
    encoder         : Lavf54.6.100
    
  Duration: 00:00:00.00, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 480x270 [SAR 1:1 DAR 16:9], 25 tbr, 1k tbn, 50 tbc
    
    Stream #0:1: Audio: aac, 44100 Hz, stereo, fltp, 128 kb/s
    
    Stream #0:2: Data: none
    
[swscaler @ 0000000004d051e0] No accelerated colorspace conversion found from yuv420p to bgr8.
    
Output #0, gif, to 'frame_%09d.gif':
    
  Metadata:
    
    encoder         : Lavf55.12.101
    
    Stream #0:0: Video: gif, bgr8, 480x270 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 100 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> gif)
    
Press [q] to stop, [?] for help
    
frame=  141 fps=130 q=-1.0 Lsize=    4960kB time=00:00:05.68 bitrate=7153.1kbits/s
    
video:5100kB audio:0kB subtitle:0 global headers:0kB muxing overhead -2.743247%

    After all I get a file named "frame_%03d.gif", but instead I want to have several files "frame_001.gif", "frame_002.gif", etc.

    Any ideas ?
    Thanks in advance.

  • FFmpeg failed to transcode - Error while opening encoder for output stream

    26 août 2013, par Nikhil M

    Reported errors

    PHPVideoToolkit error : Execute error. It was not possible to encode "/home/onevid/public_html/sites/default/files/videos/original/qw_1.mpg" as FFmpeg returned an error. The error is with the video codec of the input file. FFmpeg reports the error to be "Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height".

    Executed commands and output

    /usr/local/bin/ffmpeg -i '/home/onevid/public_html/sites/default/files/videos/original/qw_1.mpg' -vf 'scale=540:360' -strict experimental -vcodec 'h263' -qscale '12' -acodec 'aac' -ac '2' -pass '1' -passlogfile '/tmp/1377530626-521b73028a987-multipass'  -y /tmp/1377530626-521b73028a7ea.mp4
    
ffmpeg version 1.2.2 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Aug 26 2013 15:10:42 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
    
  configuration: --disable-yasm
    
  libavutil      52. 18.100 / 52. 18.100
    
  libavcodec     54. 92.100 / 54. 92.100
    
  libavformat    54. 63.104 / 54. 63.104
    
  libavdevice    54.  3.103 / 54.  3.103
    
  libavfilter     3. 42.103 /  3. 42.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
[mpeg @ 0x2e89160] max_analyze_duration 5000000 reached at 5015467 microseconds
    
Input #0, mpeg, from '/home/onevid/public_html/sites/default/files/videos/original/qw_1.mpg':
    
  Duration: 00:00:14.00, start: 0.011978, bitrate: 3235 kb/s
    
    Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [SAR 1:1 DAR 3:2], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    
    Stream #0:1[0x1c0]: Audio: mp2, 44100 Hz, stereo, s16p, 160 kb/s
    
Please use -q:a or -q:v, -qscale is ambiguous
    
[h263 @ 0x2e8b180] The specified picture size of 540x360 is not valid for the H.263 codec.
    
Valid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152. Try H.263+.
    
Output #0, mp4, to '/tmp/1377530626-521b73028a7ea.mp4':
    
    Stream #0:0: Video: h263, yuv420p, 540x360 [SAR 1:1 DAR 3:2], q=2-31, pass 1, 200 kb/s, 90k tbn, 29.97 tbc
    
    Stream #0:1: Audio: none, 44100 Hz, stereo, fltp, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg2video -> h263)
    
  Stream #0:1 -> #0:1 (mp2 -> aac)
    
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  • muxing overhead error when converting a video via ffmpeg

    16 décembre 2016, par john smoth

    I’m using ffmpeg to converting videos on my site.
    I’m converting all the videos to flv . if I upload flv , it has not problem but if I upload any other file type except flv , it shows me this error :

    ffmpeg version 0.7.11, Copyright (c) 2000-2011 the FFmpeg developers built on Jul 26 2013 01:58:02 with gcc 4.4.7 20120313 (Red Hat 4.4.7-3) 
    
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libmp3lame --enable-libx264 --enable-libfaac --enable-libvorbis 
    
--enable-libopencore-amrnb --enable-libopencore-amrwb libavutil 50. 43. 0 / 50. 43. 0 libavcodec 52.123. 0 / 52.123. 0 libavformat 52.111. 0 / 52.111. 0 
    
libavdevice 52. 5. 0 / 52. 5. 0 libavfilter 1. 80. 0 / 1. 80. 0 libswscale 0. 14. 1 / 0. 14. 1 libpostproc 51. 2. 0 / 51. 2. 0 
    
Seems stream 0 codec frame rate differs from container frame rate: 2997.00 (2997/1) -> 14.99 (15000/1001) 
    
Input #0, avi, from 'uploads/v_37.avi': 
    
Metadata: title : AJ McLean - Teenage Wildlife encoder : Lavf52.16.0
    
Duration: 00:04:17.19, start: 0.000000, bitrate: 470 kb/s 
    
Stream #0.0: Video: mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 14.98 fps, 14.99 tbr, 14.99 tbn, 2997 tbc 
    
Stream #0.1: Audio: mp3, 22050 Hz, stereo, s16, 128 kb/s 
    
WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s 
    
[buffer @ 0x2137ae0] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param: [scale @ 0x2139da0] w:640 h:480 fmt:yuv420p -> w:320 h:240 fmt:yuv420p flags:0x4 
    
Output #0, flv, to 'uploads/aaa.flv': Metadata: title : AJ McLean - Teenage Wildlife encoder : Lavf52.111.0 
    
Stream #0.0: Video: flv, yuv420p, 320x240 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 1k tbn, 14.99 tbc Stream #0.1: Audio: libmp3lame, 22050 Hz, stereo, s16, 0 kb/s 
    
Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 
    
Press [q] to stop, [?] for help 
    
frame= 26 fps= 0 q=2.0 Lsize= 80kB time=00:00:01.73 bitrate= 375.7kbits/s video:64kB audio:14kB global headers:0kB muxing overhead 2.339835%

    last line is : muxing overhead 2.339835%

    the final file is a 1 second video ( it doesn’t make any different how long is the video , all of them become a 1 second video )

    What is the problem ?
    this is the ffmpeg code that convert the video :

    echo passthru("$ffmpegpath -i uploads/$file -ar 22050 -ab 32 -f flv -s 320×240 uploads/aaa.flv 2>&1");

    Thanks

    thanks

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