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  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (10121)

  • Buffer overrun Blackmagic Intensity 4K as input to FFmpeg

    24 mai 2016, par colossus47

    I am trying to take direct video output from a 4k Sony Handycam, via HDMI directly into a Blackmagic Intensity Pro 4K. I can verify that the camera, Hdmi and blackmagic card are working as I can capture and view video using the provided "Media Express" program. When use ffmpeg I do get video output but I also get a buffer overrun.

    Here is the command :

    time ffmpeg -f decklink -i "Intensity Pro 4K@20" -c:v nvenc -b:v 100M -vf yadif=0:-1:0" -pix_fmt yuv420p -crf 29.97 -strict -2 output.mp4

    And I get the following output :

    ffmpeg version N-76538-gb83c849 Copyright (c) 2000-2015 the FFmpeg 
    

    
developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
    
configuration: --enable-nonfree --enable-nvenc --enable-nvresize --extra-cflags=-I../cudautils --extra-ldflags=-L../cudautils --enable-gpl --enable-libx264 --enable-libx265 --enable-decklink --extra-cflags=-I/home/tristan/Downloads/BlackmagicDeckLinkSDK10.6.5/Linux/include --extra-ldflags=-L/home/tristan/Downloads/BlackmagicDeckLinkSDK10.6.5/Linux/include
    
libavutil      55.  5.100 / 55.  5.100
    
libavcodec     57. 15.100 / 57. 15.100
    
libavformat    57. 14.100 / 57. 14.100
    
libavdevice    57.  0.100 / 57.  0.100
    
libavfilter     6. 15.100 /  6. 15.100
    
libswscale      4.  0.100 /  4.  0.100
    
libswresample   2.  0.101 /  2.  0.101
    
libpostproc    54.  0.100 / 54.  0.100
    
[decklink @ 0x1ccd6e0] Found Decklink mode 3840 x 2160 with rate 29.97
    
[decklink @ 0x1ccd6e0] Stream #1: not enough frames to estimate rate; consider increasing probesize
    
Guessed Channel Layout for  Input Stream #0.0 : stereo
    
Input #0, decklink, from 'Intensity Pro 4K@20':
    
Duration: N/A, start: 0.000000, bitrate: 1536 kb/s
    
Stream #0:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
    
Stream #0:1: Video: rawvideo (UYVY / 0x59565955), uyvy422, 3840x2160, -5 kb/s, 29.97 tbr, 1000k tbn, 29.97 tbc
    
Codec AVOption crf (Select the quality for constant quality mode) specified for output file #0 (output.mp4) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
    
File 'output.mp4' already exists. Overwrite ? [y/N] y
    
Output #0, mp4, to 'output.mp4':
    
Metadata:
    
encoder         : Lavf57.14.100
    
Stream #0:0: Video: h264 (nvenc) ([33][0][0][0] / 0x0021), yuv420p, 3840x2160, q=-1--1, 100000 kb/s, 29.97 fps, 30k tbn, 29.97 tbc
    
Metadata:
    
encoder         : Lavc57.15.100 nvenc
    
Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s
    
Metadata:
    
encoder         : Lavc57.15.100 aac
    
Stream mapping:
    
Stream #0:1 -> #0:0 (rawvideo (native) -> h264 (nvenc))
    
Stream #0:0 -> #0:1 (pcm_s16le (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
[decklink @ 0x1ccd6e0] Decklink input buffer overrun!:03.15 bitrate=70411.7kbits/s   
    
Last message repeated 1 times
    
[decklink @ 0x1ccd6e0] Decklink input buffer overrun!:03.54 bitrate=73110.9kbits/s   
    
Last message repeated 20 times
    
[decklink @ 0x1ccd6e0] Decklink input buffer overrun!:03.92 bitrate=76270.2kbits/s   
    
Last message repeated 15 times
    
[decklink @ 0x1ccd6e0] Decklink input buffer overrun!:04.28 bitrate=78367.6kbits/s   
    
Last message repeated 61 times
    
frame=  140 fps= 22 q=-0.0 Lsize=   57266kB time=00:00:04.67 bitrate=100425.2kbits/s   
    
video:57187kB audio:72kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.009844%
    
[decklink @ 0x1ccd6e0] Decklink input buffer overrun!
    
Last message repeated 7 times
    
[aac @ 0x1cd7020] Qavg: 215.556
    

    
real   0m8.808s
    
user   0m5.785s
    
sys   0m1.749s

    Some sort of insight into this, be that just some commands that may fix it the issue, or otherwise.

  • Laggy video and longer duration than the original file

    11 janvier 2021, par jagvetinte

    I'm trying to convert a file with this output in ffmpeg :

    


    ffmpeg version 4.3.1-2021-01-01-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev5, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
    Last message repeated 5 times
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
    Last message repeated 1 times
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
    Last message repeated 1 times
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
    Last message repeated 1 times
[mpeg2video @ 000002e8de943080] Invalid frame dimensions 0x0.
[s302m @ 000002e8de960780] S302 non PCM mode with data type 28 not supported
    Last message repeated 4 times
[mpegts @ 000002e8de93cbc0] decoding for stream 3 failed
[mpegts @ 000002e8de93cbc0] Could not find codec parameters for stream 3 (Audio: s302m (BSSD / 0x44535342), stereo, s32 (20 bit), 2304 kb/s): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'G:\test\test.ts':
  Duration: 03:27:29.61, start: 3.000000, bitrate: 39124 kb/s
  Program 1
    Stream #0:0[0x200]: Video: mpeg2video (4:2:2) ([2][0][0][0] / 0x0002), yuv422p(tv, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 450 tbr, 90k tbn, 50 tbc
    Side data:
      cpb: bitrate max/min/avg: 36898800/0/0 buffer size: 13271040 vbv_delay: N/A
    Stream #0:1[0x1010]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 384 kb/s
    Stream #0:2[0x1020]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 384 kb/s
    Stream #0:3[0x1030]: Audio: s302m (BSSD / 0x44535342), stereo, s32 (20 bit), 2304 kb/s


    


    But whatever setting i try the video ends up very laggy and the duration ends up much longer than the original file, even when I play it through VLC. It is a little hard to explain so I will provide a sample file here with the result after the conversion :

    


    https://drive.google.com/file/d/1ADPF2POSnBCiJkgMES2vOn2wznyBst6W/view?usp=sharing

    


    Is it something wrong with the file or with ffmpeg itself and how do I solve it ?

    


    Firstly I tried this command :

    


    ffmpeg -i "G:\test\test.ts" -map 0:0 -map 0:1 -vcodec libx265 -crf 23 -filter:v yadif=1 -acodec ac3 -ab 384k "C:\Users\User name\Videos\test.mkv"


    


    And then I tried this with the same result :

    


    ffmpeg -i "G:\test\test.ts" -map 0:0 -map 0:1 -vcodec copy -acodec copy "C:\Users\User name\Videos\test.mkv"


    


    The sample file is converted with the first command.

    


  • Evolution #4816 : Déplacer la lib de menu déroulant dans le core

    6 juillet 2021

    Dans les autres libs possiblement déplaçables :

    - statistiques/lib/luxon (dates & times) https://moment.github.io/luxon/

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