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Autres articles (64)

  • L’agrémenter visuellement

    10 avril 2011

    MediaSPIP est basé sur un système de thèmes et de squelettes. Les squelettes définissent le placement des informations dans la page, définissant un usage spécifique de la plateforme, et les thèmes l’habillage graphique général.
    Chacun peut proposer un nouveau thème graphique ou un squelette et le mettre à disposition de la communauté.

  • 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 (12307)

  • avcodec/d3d12va_decode : check existance before assigning a new index

    11 janvier 2024, par Tong Wu
    avcodec/d3d12va_decode : check existance before assigning a new index
    

    Fixes #10759.

    It can happen in H.264, MPEG2, VC1 that the current frame resource
    memory is already in ref_resource. For example, for a interlaced frame,
    the same curr memory is passed twice. For the second time it could possibly
    reference itself. When this happens the curr is already given an index and
    in ref_resources. When the reference frame index is required, we should check
    the existance in the ref_resources first before assigning a new index for it.

    Signed-off-by : Tong Wu <tong1.wu@intel.com>

    • [DH] libavcodec/d3d12va_decode.c
  • avutil/hwcontext_qsv : derive QSV frames to D3D11VA frames

    7 mai 2022, par Tong Wu
    avutil/hwcontext_qsv : derive QSV frames to D3D11VA frames
    

    Fixes :
    $ ffmpeg.exe -y -hwaccel qsv -init_hw_device d3d11va=d3d11 \
    - init_hw_device qsv=qsv@d3d11 -c:v h264_qsv -i input.h264 \
    - vf "hwmap=derive_device=d3d11va,format=d3d11" -f null -

    Reviewed-by : Soft Works <softworkz@hotmail.com>
    Signed-off-by : Tong Wu <tong1.wu@intel.com>
    Signed-off-by : Haihao Xiang <haihao.xiang@intel.com>

    • [DH] libavutil/hwcontext_qsv.c
  • ffmpeg file conversion unreadable [on hold]

    16 août 2015, par rashadb

    I used ffmpeg to shorten a Videohive file from 14 seconds to 5 seconds with the following entry on the command line :

    ffmpeg -i 15_Shopping_VKV.mov -t 5 shoes.mp4

    The file doesn’t work when I try to play it with Quicktime. Along with other Google searches, I looked at the following links in Stackoverflow for suggestions :

    https://stackoverflow.com/questions/25831944/unreadable-files
    https://stackoverflow.com/questions/4818681/ffmpeg-conversion-error
    https://stackoverflow.com/questions/22307229/ffmpeg-mp4-file-is-not-valid

    At this point I’m out of ideas to figure out what’s wrong, let alone how to fix the problem.

    Here are some additional details :

    I managed to edit a few other Videohive files but each file comes in slightly different format and although I’ve converted a number of other files with a similar entry or one that adjusts the codec to something web ready, I’ve been unable to successfully convert this file. Like all of the other original videohive files it is readily read by QuickTime. Only after the conversion does this file not work. All other files I’ve converted worked with the following conversions for example :

    ffmpeg -i mainfile.mp4 -t 5:00 rave.mp4

    OR

    ffmpeg -i 00299.mov -c:v libx264 dating.mp4

    Here are a few additional details that may help :

    1) a link to the broken file

    https://s3.amazonaws.com/files.parsetfss.com/90b6030c-d712-42ec-b2ee-deb43a4dd277/tfss-79b45914-9ada-4c1c-8fbc-8d652f8c00c7-shoes.mp4

    2) The printout of ffmpeg process

    News-MacBook-Air:CP08.14.15 newuser$ ffmpeg -i 15_Shopping_VKV.mov  -t 5  shoes.mov
    ffmpeg version 2.7.1 Copyright (c) 2000-2015 the FFmpeg developers
     built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1_1/include/openjpeg-1.5 ' --enable-nonfree --enable-vda
     libavutil      54. 27.100 / 54. 27.100
     libavcodec     56. 41.100 / 56. 41.100
     libavformat    56. 36.100 / 56. 36.100
     libavdevice    56.  4.100 / 56.  4.100
     libavfilter     5. 16.101 /  5. 16.101
     libavresample   2.  1.  0 /  2.  1.  0
     libswscale      3.  1.101 /  3.  1.101
     libswresample   1.  2.100 /  1.  2.100
     libpostproc    53.  3.100 / 53.  3.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '15_Shopping_VKV.mov':
     Metadata:
       major_brand     : qt  
       minor_version   : 537199360
       compatible_brands: qt  
       creation_time   : 2015-03-07 22:03:36
     Duration: 00:00:14.71, start: 0.000000, bitrate: 78240 kb/s
       Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p(pc, bt470bg/bt709/bt709), 1920x1080 [SAR 72:72 DAR 16:9], 78231 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc (default)
       Metadata:
         creation_time   : 2015-03-07 22:03:36
         handler_name    : Apple Alias Data Handler
         encoder         : Photo - JPEG
         timecode        : 00:02:36;02
       Stream #0:1(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
       Metadata:
         creation_time   : 2015-03-07 22:15:55
         handler_name    : Apple Alias Data Handler
         timecode        : 00:02:36;02
    File 'shoes.mov' already exists. Overwrite ? [y/N] y
    No pixel format specified, yuvj422p for H.264 encoding chosen.
    Use -pix_fmt yuv420p for compatibility with outdated media players.
    [libx264 @ 0x7fbc9400a000] using SAR=1/1
    [libx264 @ 0x7fbc9400a000] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 0x7fbc9400a000] profile High 4:2:2, level 4.0, 4:2:2 8-bit
    [libx264 @ 0x7fbc9400a000] 264 - core 144 r2533 c8a773e - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 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_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    Output #0, mov, to 'shoes.mov':
     Metadata:
       major_brand     : qt  
       minor_version   : 537199360
       compatible_brands: qt  
       encoder         : Lavf56.36.100
       Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuvj422p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
       Metadata:
         creation_time   : 2015-03-07 22:03:36
         handler_name    : Apple Alias Data Handler
         timecode        : 00:02:36;02
         encoder         : Lavc56.41.100 libx264
    Stream mapping:
     Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    frame=  150 fps=6.9 q=-1.0 Lsize=    3953kB time=00:00:04.93 bitrate=6557.7kbits/s    
    video:3950kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.080847%
    [libx264 @ 0x7fbc9400a000] frame I:1     Avg QP:25.46  size: 71679
    [libx264 @ 0x7fbc9400a000] frame P:72    Avg QP:25.36  size: 40886
    [libx264 @ 0x7fbc9400a000] frame B:77    Avg QP:27.53  size: 13357
    [libx264 @ 0x7fbc9400a000] consecutive B-frames:  0.7% 89.3% 10.0%  0.0%
    [libx264 @ 0x7fbc9400a000] mb I  I16..4: 16.5% 80.0%  3.5%
    [libx264 @ 0x7fbc9400a000] mb P  I16..4:  5.3% 14.6%  0.6%  P16..4: 41.1% 10.6%  3.0%  0.0%  0.0%    skip:24.9%
    [libx264 @ 0x7fbc9400a000] mb B  I16..4:  0.4%  1.2%  0.0%  B16..8: 32.7%  4.0%  0.7%  direct: 2.8%  skip:58.2%  L0:36.3% L1:53.2% BI:10.5%
    [libx264 @ 0x7fbc9400a000] 8x8 transform intra:71.7% inter:86.5%
    [libx264 @ 0x7fbc9400a000] coded y,uvDC,uvAC intra: 52.7% 78.6% 18.2% inter: 14.1% 26.4% 0.4%
    [libx264 @ 0x7fbc9400a000] i16 v,h,dc,p: 26% 18%  5% 51%
    [libx264 @ 0x7fbc9400a000] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 13% 20%  4%  8% 12%  6%  8%  5%
    [libx264 @ 0x7fbc9400a000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 15% 12%  4% 14% 14%  7%  5%  2%
    [libx264 @ 0x7fbc9400a000] i8c dc,h,v,p: 45% 12% 27% 16%
    [libx264 @ 0x7fbc9400a000] Weighted P-Frames: Y:0.0% UV:0.0%
    [libx264 @ 0x7fbc9400a000] ref P L0: 65.2% 18.5% 11.3%  5.0%
    [libx264 @ 0x7fbc9400a000] ref B L0: 90.7%  9.1%  0.2%
    [libx264 @ 0x7fbc9400a000] ref B L1: 99.1%  0.9%
    [libx264 @ 0x7fbc9400a000] kb/s:6463.90