Recherche avancée

Médias (0)

Mot : - Tags -/xmlrpc

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (23)

  • 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

  • Déploiements possibles

    31 janvier 2010, par

    Deux types de déploiements sont envisageable dépendant de deux aspects : La méthode d’installation envisagée (en standalone ou en ferme) ; Le nombre d’encodages journaliers et la fréquentation envisagés ;
    L’encodage de vidéos est un processus lourd consommant énormément de ressources système (CPU et RAM), il est nécessaire de prendre tout cela en considération. Ce système n’est donc possible que sur un ou plusieurs serveurs dédiés.
    Version mono serveur
    La version mono serveur consiste à n’utiliser qu’une (...)

  • Taille des images et des logos définissables

    9 février 2011, par

    Dans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
    Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)

Sur d’autres sites (7176)

  • FFMPEG fails with only two input frames

    3 mars 2019, par JeffThompson

    I’d like to use ffmpeg’s great frame interpolation to blend two images. I get great results when testing with about a dozen frames, but when only using two it finishes immediately and I get a video file that can’t be opened.

    My command :

    ffmpeg -y -r 24 -pattern_type glob -i "TestFrames/*[0-1].png" -pix_fmt yuv420p -filter:v "minterpolate='mi_mode=mci:mc_mode=aobmc:me_mode=bidir:vsbmc=1:fps=1024'" -vsync 2 8.mp4

    Output from ffmpeg :

    ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
     built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/openjdk-11.0.2.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/openjdk-11.0.2.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
     libavutil      56. 22.100 / 56. 22.100
     libavcodec     58. 35.100 / 58. 35.100
     libavformat    58. 20.100 / 58. 20.100
     libavdevice    58.  5.100 / 58.  5.100
     libavfilter     7. 40.101 /  7. 40.101
     libavresample   4.  0.  0 /  4.  0.  0
     libswscale      5.  3.100 /  5.  3.100
     libswresample   3.  3.100 /  3.  3.100
     libpostproc    55.  3.100 / 55.  3.100
    Input #0, image2, from 'TestFrames/*.png':
     Duration: 00:00:00.08, start: 0.000000, bitrate: N/A
       Stream #0:0: Video: png, rgba(pc), 1080x1080, 25 tbr, 25 tbn, 25 tbc
    Stream mapping:
     Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    [libx264 @ 0x7fa5c2813200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    [libx264 @ 0x7fa5c2813200] profile High, level 6.1
    [libx264 @ 0x7fa5c2813200] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=12 lookahead_threads=2 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, mp4, to '8.mp4':
     Metadata:
       encoder         : Lavf58.20.100
       Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1080x1080, q=-1--1, 1024 fps, 16384 tbn, 1024 tbc
       Metadata:
         encoder         : Lavc58.35.100 libx264
       Side data:
         cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
    video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

    (Why fps=1024 ? I wanted to generate a a bunch of frames between the two images, so I plan to later separate the resulting video into separate images.)

  • ffmpeg saves only first frame

    2 juin 2021, par DuDa

    I generated rotating pictures in Python and now I want to create an animation from it using ffmpeg. But the generated video includes only the first frame (viewed in VLC) and is way to small (half the size of one png) for all 36 pictures. What am I doing wrong ? Thank you.

    


    command in shell : ffmpeg -framerate 5 -i "./mov/movie%03d.png" -y "movie.mp4"

    


    Files in Folder mov :

    


      

    • movie000.png
    • 


    • movie010.png
    • 


    • ..
    • 


    • movie350.png
    • 


    


    ffmpeg version ffmpeg-20170620-ae6f6d4-win64-static

    


    output

    


    ffmpeg version N-86537-gae6f6d4 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.1.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --e
nable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --
enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-li
bfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug -
-enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enabl
e-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
bsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolam
e --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable
-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 66.100 / 55. 66.100
  libavcodec     57. 99.100 / 57. 99.100
  libavformat    57. 73.100 / 57. 73.100
  libavdevice    57.  7.100 / 57.  7.100
  libavfilter     6. 94.100 /  6. 94.100
  libswscale      4.  7.101 /  4.  7.101
  libswresample   2.  8.100 /  2.  8.100
  libpostproc    54.  6.100 / 54.  6.100
Input #0, image2, from './mov/movie%03d.png':
  Duration: 00:00:00.20, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgba(pc), 1152x864 [SAR 2834:2834 DAR 4:3], 5 tbr,
5 tbn, 5 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Press [q] to stop, [?] for help
No pixel format specified, yuv444p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 00000000003ec140] using SAR=1/1
[libx264 @ 00000000003ec140] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX FMA3 BMI2 AVX2
[libx264 @ 00000000003ec140] profile High 4:4:4 Predictive, level 3.2, 4:4:4 8-b
it
[libx264 @ 00000000003ec140] 264 - core 150 r2833 df79067 - H.264/MPEG-4 AVC cod
ec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 r
ef=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_pski
p=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decim
ate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_a
dapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=5
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, mp4, to 'movie.mp4':
  Metadata:
    encoder         : Lavf57.73.100
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 1152x8
64 [SAR 1:1 DAR 4:3], q=-1--1, 5 fps, 10240 tbn, 5 tbc
    Metadata:
      encoder         : Lavc57.99.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=    1 fps=0.0 q=23.0 Lsize=      19kB time=00:00:00.00 bitrate=1581142.9kb
its/s speed=0.00138x
video:18kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing ov
erhead: 4.403838%
[libx264 @ 00000000003ec140] frame I:1     Avg QP:17.26  size: 17865
[libx264 @ 00000000003ec140] mb I  I16..4: 29.6% 56.0% 14.5%
[libx264 @ 00000000003ec140] 8x8 transform intra:56.0%
[libx264 @ 00000000003ec140] coded y,u,v intra: 11.5% 2.3% 6.3%
[libx264 @ 00000000003ec140] i16 v,h,dc,p: 77% 22%  1%  0%
[libx264 @ 00000000003ec140] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33%  3% 62%  0%  0%
 0%  0%  0%  0%
[libx264 @ 00000000003ec140] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 53% 25% 12%  1%  1%
 2%  1%  2%  1%
[libx264 @ 00000000003ec140] kb/s:714.60


    


  • "Pixel format 'yuvj420p' is not supported" when converting image to video using CUDA hardware acceleration

    11 février 2020, par laurent

    I’m trying to convert an image to a video using CUDA hardware acceleration but I can’t get it to work.

    The basic command I have is this one :

    ffmpeg -y -hwaccel cuvid -i tests/MediaSamples/portrait_0.jpg -t 10 out.mp4

    And I’m getting this error :

    [AVHWFramesContext @ 0x32d3f00] Pixel format 'yuvj420p' is not supported
    [mjpeg @ 0x2d18480] Error initializing a CUDA frame pool
    cuvid hwaccel requested for input stream #0:0, but cannot be initialized.
    Error while decoding stream #0:0: Invalid argument

    I’ve tried setting the pixel format like so, but that didn’t help :

    ffmpeg -y -hwaccel cuvid -pix_fmt yuv420p -i tests/MediaSamples/portrait_0.jpg -t 10 out.mp4

    I’ve also tried many other flags but can’t get anything to work. Any idea what the issue might be ?

    For information this is the full log :

    ffmpeg version N-96615-gc35382a Copyright (c) 2000-2020 the FFmpeg developers
     built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609
     configuration: --enable-nonfree --disable-shared --enable-gpl --enable-openssl --enable-libx264 --enable-cuda-sdk --enable-nvenc --enable-cuda --enable-cuvid --enable-libnpp --extra-cflags='-I/usr/local/ssl/include -I/usr/local/cuda/include -I/usr/local/include -L/usr/local/ssl/lib -Wl,-rpath=/usr/local/ssl/lib' --extra-ldflags=-L/usr/local/cuda/lib64
     libavutil      56. 38.100 / 56. 38.100
     libavcodec     58. 67.101 / 58. 67.101
     libavformat    58. 37.100 / 58. 37.100
     libavdevice    58.  9.103 / 58.  9.103
     libavfilter     7. 73.100 /  7. 73.100
     libswscale      5.  6.100 /  5.  6.100
     libswresample   3.  6.100 /  3.  6.100
     libpostproc    55.  6.100 / 55.  6.100
    Input #0, image2, from 'tests/MediaSamples/portrait_0.jpg':
     Duration: 00:00:00.04, start: 0.000000, bitrate: 40237 kb/s
       Stream #0:0: Video: mjpeg (Progressive), yuvj420p(pc, bt470bg/unknown/unknown), 1600x900 [SAR 72:72 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
    Stream mapping:
     Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    [AVHWFramesContext @ 0x32d3f00] Pixel format 'yuvj420p' is not supported
    [mjpeg @ 0x2d18480] Error initializing a CUDA frame pool
    cuvid hwaccel requested for input stream #0:0, but cannot be initialized.
    Error while decoding stream #0:0: Invalid argument
    [libx264 @ 0x2d1e840] using SAR=1/1
    [libx264 @ 0x2d1e840] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 0x2d1e840] profile High, level 4.0
    [libx264 @ 0x2d1e840] 264 - core 148 r2643 5c65704 - 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=24 lookahead_threads=4 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, mp4, to 'out.mp4':
     Metadata:
       encoder         : Lavf58.37.100
       Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc), 1600x900 [SAR 72:72 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
       Metadata:
         encoder         : Lavc58.67.101 libx264
       Side data:
         cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
    video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    Conversion failed!