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  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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 (...)

Sur d’autres sites (6635)

  • Revision c725502bf3 : Skip buffer update in sub8x8 rd loop This commit allows the encoder to skip a f

    20 juillet 2013, par Jingning Han

    Changed Paths :
     Modify /vp9/encoder/vp9_rdopt.c



    Skip buffer update in sub8x8 rd loop

    This commit allows the encoder to skip a few buffer update steps in
    rd_pick_best_mbsegmentation, when early breakout has been triggered
    in the rd_check_segment_txsize. It provides about 1% speed-up for
    bus_cif at 2000 kbps, in the settings of speed 0.

    Change-Id : Ica034f10a24dec572b397d8389a2b81020ebc0b9

  • Why ffmpeg command results in blank video ?

    17 juillet 2013, par kheya

    I am trying to conver mov file to H264 encoded mp4
    Same command converts another mov file just fine.

    But fails for a particular mov file. Original video is 29.6MB after conversion I get 966KB

    I get the sound and duration right. But all the frames are black even though original video is fine.

    Here is the command :

    ffmpeg -i file3.mov -movflags +faststart -vcodec libx264 -preset slow -crf 20 -vf -threads 0 -acodec libvo_aacenc -b:a 128k "file3.mp4"

    Here is the result of ffmpeg -i : >ffmpeg.exe -i file3.mov

    ffmpeg version N-54691-g7f4a1fd Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jul 12 2013 16:31:48 with gcc 4.7.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
    
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
    
enable-libxvid --enable-zlib
    
  libavutil      52. 39.100 / 52. 39.100
    
  libavcodec     55. 18.102 / 55. 18.102
    
  libavformat    55. 12.102 / 55. 12.102
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 80.101 /  3. 80.101
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000003077e0] sample aspect ratio already set to
    
118:81, ignoring 'pasp' atom (10000:7031)
    
Guessed Channel Layout for  Input Stream #0.1 : stereo
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file3.mov':
    
  Metadata:
    
    creation_time   : 2009-02-12 01:19:22
    
  Duration: 00:00:08.00, start: 0.000000, bitrate: 30338 kb/s
    
    Stream #0:0(eng): Video: dvvideo (dvpp / 0x70707664), yuv411p, 720x576 [SAR
    
64:45 DAR 16:9], 28800 kb/s, SAR 118:81 DAR 295:162, 25 fps, 25 tbr, 600 tbn, 25
    
 tbc
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, stereo, s1
    
6, 1536 kb/s
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler

    During conversion here is what I see (nothing unusual or no errors) :

    ffmpeg version N-54691-g7f4a1fd Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jul 12 2013 16:31:48 with gcc 4.7.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
    
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
    
enable-libxvid --enable-zlib
    
  libavutil      52. 39.100 / 52. 39.100
    
  libavcodec     55. 18.102 / 55. 18.102
    
  libavformat    55. 12.102 / 55. 12.102
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 80.101 /  3. 80.101
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000024aafe0] sample aspect ratio already set to
    
118:81, ignoring 'pasp' atom (10000:7031)
    
Guessed Channel Layout for  Input Stream #0.1 : stereo
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file3.mov':
    
  Metadata:
    
    creation_time   : 2009-02-12 01:19:22
    
  Duration: 00:00:08.00, start: 0.000000, bitrate: 30338 kb/s
    
    Stream #0:0(eng): Video: dvvideo (dvpp / 0x70707664), yuv411p, 720x576 [SAR
    
64:45 DAR 16:9], 28800 kb/s, SAR 118:81 DAR 295:162, 25 fps, 25 tbr, 600 tbn, 25
    
 tbc
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, stereo, s1
    
6, 1536 kb/s
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
No pixel format specified, yuv422p for H.264 encoding chosen.
    
Use -pix_fmt yuv420p for compatibility with outdated media players.
    
[libx264 @ 0000000000347340] using SAR=118/81
    
[libx264 @ 0000000000347340] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    
AVX
    
[libx264 @ 0000000000347340] profile High 4:2:2, level 2.1, 4:2:2 8-bit
    
[libx264 @ 0000000000347340] 264 - core 133 r2334 a3ac64b - H.264/MPEG-4 AVC cod
    
ec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 r
    
ef=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 psy=1 psy_rd=1.00:0.00 mixed
    
_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pski
    
p=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 deci
    
mate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_
    
adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=2
    
5 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=20.0 qcomp=0.6
    
0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'file4a.mp4':
    
  Metadata:
    
    encoder         : Lavf55.12.102
    
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv422p, 4
    
80x320 [SAR 118:81 DAR 59:27], q=-1--1, 12800 tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1(eng): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000
    
Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (dvvideo -> libx264)
    
  Stream #0:1 -> #0:1 (pcm_s16be -> libvo_aacenc)
    
Press [q] to stop, [?] for help
    
[swscaler @ 00000000024b0740] Warning: data is not aligned! This can lead to a s
    
peedloss
    
frame=   78 fps=0.0 q=25.0 size=     128kB time=00:00:02.14 bitrate= 487.8kbits/
    
frame=  113 fps=109 q=25.0 size=     272kB time=00:00:04.27 bitrate= 520.9kbits/
    
frame=  145 fps= 94 q=25.0 size=     399kB time=00:00:05.36 bitrate= 609.2kbits/
    
frame=  182 fps= 89 q=25.0 size=     571kB time=00:00:06.45 bitrate= 725.0kbits/
    
Starting second pass: moving header on top of the file
    
frame=  200 fps= 70 q=-1.0 Lsize=     965kB time=00:00:08.00 bitrate= 987.2kbits
    
/s
    
video:832kB audio:126kB subtitle:0 global headers:0kB muxing overhead 0.755121%
    
[libx264 @ 0000000000347340] frame I:1     Avg QP:21.14  size: 39885
    
[libx264 @ 0000000000347340] frame P:50    Avg QP:21.80  size:  7412
    
[libx264 @ 0000000000347340] frame B:149   Avg QP:26.25  size:  2960
    
[libx264 @ 0000000000347340] consecutive B-frames:  0.5%  0.0%  1.5% 98.0%
    
[libx264 @ 0000000000347340] mb I  I16..4: 13.7% 46.7% 39.7%
    
[libx264 @ 0000000000347340] mb P  I16..4:  0.5% 19.7%  3.8%  P16..4: 32.8% 11.9
    
% 14.1%  0.0%  0.0%    skip:17.1%
    
[libx264 @ 0000000000347340] mb B  I16..4:  0.0%  5.1%  1.3%  B16..8: 14.4%  9.2
    
%  2.9%  direct: 7.3%  skip:59.8%  L0:42.8% L1:38.3% BI:19.0%
    
[libx264 @ 0000000000347340] 8x8 transform intra:79.4% inter:71.7%
    
[libx264 @ 0000000000347340] direct mvs  spatial:97.3% temporal:2.7%
    
[libx264 @ 0000000000347340] coded y,uvDC,uvAC intra: 92.8% 80.1% 26.3% inter: 2
    
4.2% 28.8% 8.1%
    
[libx264 @ 0000000000347340] i16 v,h,dc,p: 64% 17%  3% 16%
    
[libx264 @ 0000000000347340] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  1% 33%  4%  3%  8%
    
 2% 35%  2% 11%
    
[libx264 @ 0000000000347340] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu:  3% 23%  5%  4% 11%
    
 5% 33%  4% 13%
    
[libx264 @ 0000000000347340] i8c dc,h,v,p: 38% 40% 14%  8%
    
[libx264 @ 0000000000347340] Weighted P-Frames: Y:2.0% UV:0.0%
    
[libx264 @ 0000000000347340] ref P L0: 39.9% 10.0% 25.6%  8.7% 15.3%  0.6%
    
[libx264 @ 0000000000347340] ref B L0: 76.9% 15.1%  5.7%  2.3%
    
[libx264 @ 0000000000347340] ref B L1: 96.3%  3.7%
    
[libx264 @ 0000000000347340] kb/s:851.49

  • FFMPEG Convert from mov, mjpeg codec error

    30 août 2011, par vitel

    I've a problem when i try to convert a .mov to a .webm with ffmpeg... I've no problems from any others video format.

    I've enable the Quicktime formats "—enable-zlib" and with the "ffmpeg -formats" command i get .mov files as encode or decode.

    When i try to transform a video i get this :

      # ffmpeg -i /var/www/static/uploads/usersVideos/cavity0.mov -vcodec mjpeg  /var/www/static/uploads/usersVideos/cavity.webm
    
 ffmpeg version N-32159-gc70e852, Copyright (c) 2000-2011 the FFmpeg developers
    
 built on Aug 30 2011 14:16:07 with gcc 4.4.5
    
 configuration: --enable-gpl --enable-libmp3lame --enable-zlib --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab --enable-libvpx
    
   libavutil    51. 14. 0 / 51. 14. 0
    
   libavcodec   53. 12. 0 / 53. 12. 0
    
   libavformat  53. 10. 0 / 53. 10. 0
    
   libavdevice  53.  3. 0 / 53.  3. 0
    
   libavfilter   2. 37. 0 /  2. 37. 0
    
   libswscale    2.  0. 0 /  2.  0. 0
    
   libpostproc  51.  2. 0 / 51.  2. 0
    
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x13b7320] stream 0, error opening alias:     path='/matlab_sv13/work/cavity_flow/up500.jpg', dir='cavity_flow', filename='up500.jpg', volume='NONAME', nlvl_from=1, nlvl_to=1**
    
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x13b7320] Could not find codec parameters (Video: mjpeg (jpeg / 0x6765706A), 434x343, 4762 kb/s)
    
 /var/www/static/uploads/usersVideos/cavity0.mov: could not find codec parameters
    
 [1]    8265 exit 1     ffmpeg -i /var/www/static/uploads/usersVideos/cavity0.mov -vcodec mjpeg

    Someone has an idea ?

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