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  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Les statuts des instances de mutualisation

    13 mars 2010, par

    Pour des raisons de compatibilité générale du plugin de gestion de mutualisations avec les fonctions originales de SPIP, les statuts des instances sont les mêmes que pour tout autre objets (articles...), seuls leurs noms dans l’interface change quelque peu.
    Les différents statuts possibles sont : prepa (demandé) qui correspond à une instance demandée par un utilisateur. Si le site a déjà été créé par le passé, il est passé en mode désactivé. publie (validé) qui correspond à une instance validée par un (...)

  • 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.

Sur d’autres sites (9831)

  • ffmpeg vaapi hardware acceleration with some videos not working

    15 juillet 2020, par Maisen1886

    I have a problem with transcoding various videos on my Synology NAS. Some videos work, some do not.

    


    ffmpeg command :

    


    sudo /volume1/@appstore/VideoStation/bin/ffmpeg -y -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -i '/path/to/my/video/IMG_8647.MOV' -vf hwupload,scale_vaapi=w=640:h=-1:format=nv12 -c:v h264_vaapi -b:v 2M -movflags +faststart 'path/to/output4.mp4'


    


    After i enter the command above, i get following error output :

    


    ffmpeg version 3.3.7 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 4.9.3 (crosstool-NG 1.20.0) 20150311 (prerelease)
  configuration: --prefix=/usr/pkg --incdir='${prefix}/include/ffmpeg' --arch=i686 --target-os=linux --cross-prefix=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu- --enable-cross-compile --enable-optimizations --enable-pic --enable-gpl --enable-version3 --enable-nonfree --enable-encoders --enable-pthreads --disable-muxer=image2 --disable-muxer=image2pipe --disable-swscale-alpha --disable-ffplay --disable-ffserver --disable-doc --disable-devices --disable-bzlib --disable-altivec --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --disable-decoder=amrnb --disable-encoder=zmbv --disable-encoder=dca --disable-decoder=dca --disable-encoder=ac3 --disable-encoder=ac3_fixed --disable-encoder=eac3 --disable-decoder=eac3 --disable-encoder=truehd --disable-decoder=truehd --extra-cflags=-I/usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/pkg/include --extra-ldflags=-L/usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/pkg/lib --cc=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-ccache-gcc --enable-shared --disable-static --enable-yasm --enable-libx264 --enable-vaapi --enable-encoder=h264_vaapi --enable-encoder=libx264
  libavutil      55. 58.100 / 55. 58.100
  libavcodec     57. 89.100 / 57. 89.100
  libavformat    57. 71.100 / 57. 71.100
  libavdevice    57.  6.100 / 57.  6.100
  libavfilter     6. 82.100 /  6. 82.100
  libswscale      4.  6.100 /  4.  6.100
  libswresample   2.  7.100 /  2.  7.100
  libpostproc    54.  5.100 / 54.  5.100
libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /var/packages/VideoStation/target/lib/libva/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/volume1/homes/maisen20/Drive/iPhone Medien Neu/2020/06/Videos/2020-06-28_19-25-54_IMG_8647.MOV':
  Metadata:
    major_brand     : qt  
    minor_version   : 0
    compatible_brands: qt  
    creation_time   : 2020-06-28T17:25:54.000000Z
    com.apple.quicktime.location.ISO6709: +47.1156+009.0640+430.715/
    com.apple.quicktime.make: Apple
    com.apple.quicktime.model: iPhone X
    com.apple.quicktime.software: 13.5.1
    com.apple.quicktime.creationdate: 2020-06-28T19:25:54+0200
  Duration: 00:00:25.10, start: 0.000000, bitrate: 50256 kb/s
    Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 3840x2160, 50115 kb/s, 60.01 fps, 60 tbr, 600 tbn, 600 tbc (default)
    Metadata:
      rotate          : 90
      creation_time   : 2020-06-28T17:25:54.000000Z
      handler_name    : Core Media Data Handler
      encoder         : HEVC
    Side data:
      displaymatrix: rotation of -90.00 degrees
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 98 kb/s (default)
    Metadata:
      creation_time   : 2020-06-28T17:25:54.000000Z
      handler_name    : Core Media Data Handler
    Stream #0:2(und): Data: none (mebx / 0x7862656D), 26 kb/s (default)
    Metadata:
      creation_time   : 2020-06-28T17:25:54.000000Z
      handler_name    : Core Media Data Handler
    Stream #0:3(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
    Metadata:
      creation_time   : 2020-06-28T17:25:54.000000Z
      handler_name    : Core Media Data Handler
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> h264 (h264_vaapi))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
Impossible to convert between the formats supported by the filter 'graph 0 input from stream 0:0' and the filter 'auto_scaler_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0


    


    Unfortunately I do not know that much about transcoding videos. Does anyone know what the problem here could be ?

    


    Without hardware support (without -hwaccel_output_format vaapi) it works.

    


    thanks a lot !

    


  • Splitting or segmenting a video with ffmpeg changes audio at the beginning

    6 novembre 2020, par VSV

    I am using ffmpeg to split a video file to short bites :
ffmpeg i source.mp4 -codec copy -segment_time 5 -reset_timestamps 1 -force_key_frames "expr:gte(t,n_forced*5)" -f segment short%d.mp4

    


    And by tonometer audio found that audio at the beginning starts like by fade in https://i.stack.imgur.com/Vj2KL.jpg

    


    The same behavior when I use cut by ss, t, to parameters or remove -codec copy.

    


    How can I remove this fade in or what is it behavior ?

    


    Output

    


    ffmpeg-2020-10-11-git-7ea4bcff7b-full_build\bin\ffmpeg -i C:\Projects\data\video7\in.mp4 -codec copy -segment_time 5 -reset_timestamps 1 -force_key_frames "expr:gte(t,n_forced*5)" -f segment C:\Projects\data\video7\out%d.mp4 -y
ffmpeg version 2020-10-11-git-7ea4bcff7b-full_build-www.gyan.dev Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.0 (Rev3, 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-libsvtav1 --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-libglslang --enable-vulkan --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. 60.100 / 56. 60.100
  libavcodec     58.111.100 / 58.111.100
  libavformat    58. 62.100 / 58. 62.100
  libavdevice    58. 11.102 / 58. 11.102
  libavfilter     7. 87.100 /  7. 87.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Projects\data\video7\in.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: isom3gp4
    creation_time   : 2020-10-26T15:17:18.000000Z
  Duration: 00:00:15.74, start: 0.000000, bitrate: 16816 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 17029 kb/s, 29.96 fps, 30 tbr, 90k tbn, 180k tbc (default)
    Metadata:
      rotate          : 90
      creation_time   : 2020-10-26T15:17:18.000000Z
      handler_name    : VideoHandle
    Side data:
      displaymatrix: rotation of -90.00 degrees
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 121 kb/s (default)
    Metadata:
      creation_time   : 2020-10-26T15:17:18.000000Z
      handler_name    : SoundHandle
[segment @ 000001e2ace958c0] Opening 'C:\Projects\data\video7\out0.mp4' for writing
Output #0, segment, to 'C:\Projects\data\video7\out%d.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: isom3gp4
    encoder         : Lavf58.62.100
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, q=2-31, 17029 kb/s, 29.96 fps, 30 tbr, 90k tbn, 90k tbc (default)
    Metadata:
      rotate          : 90
      creation_time   : 2020-10-26T15:17:18.000000Z
      handler_name    : VideoHandle
    Side data:
      displaymatrix: rotation of -90.00 degrees
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 121 kb/s (default)
    Metadata:
      creation_time   : 2020-10-26T15:17:18.000000Z
      handler_name    : SoundHandle
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[segment @ 000001e2ace958c0] Opening 'C:\Projects\data\video7\out1.mp4' for writing
[segment @ 000001e2ace958c0] Opening 'C:\Projects\data\video7\out2.mp4' for writing
[segment @ 000001e2ace958c0] Opening 'C:\Projects\data\video7\out3.mp4' for writing
frame=  463 fps=0.0 q=-1.0 Lsize=N/A time=00:00:15.72 bitrate=N/A speed= 301x
video:32077kB audio:233kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown


    


  • FFMPEG for thumbnail from video distorted when downloaded

    17 juillet 2020, par bjacobs

    I am grabbing a thumbnail image from an mp4.

    


    When I use -c:v mjpeg, the thumbnail appears fine in the browser, but is completely distorted when I preview it on my Mac. If I use -c:v jpeg2000 the image looks fine on my Mac, but it does not show in the browser.

    


    Full command :

    


    ffmpeg -ss 3 -i https://some_site/some_video.mp4 -vf thumbnail,scale=480:480 -q:v 2 -frames:v 1 -f image2 -c:v jpeg2000 -r 1 -vframes 1 tmp/my_thumbnail.jpg

    


    -vs-

    


    ffmpeg -ss 3 -i https://some_site/some_video.mp4 -vf thumbnail,scale=480:480 -q:v 2 -frames:v 1 -f image2 -c:v mjpeg -r 1 -vframes 1 tmp/my_thumbnail.jpg

    


    What encoding do I need to use in order for the generated thumbnail to both be viewable in the browser and also preview-able on Mac ?

    


    This is what the distorted image looks like :
enter image description here

    


    I'm beginning to think this is an macOS issue, but even if it is, I'd like to know if FFMPEG would have a solution for it so that even users with the buggy OS can properly preview the image.

    


    Output :

    


    ffmpeg version 4.1.5 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8.3.0 (Alpine 8.3.0)
  configuration: --prefix=/usr --enable-avresample --enable-avfilter --enable-gnutls --enable-gpl --enable-libass --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libx264 --enable-libx265 --enable-libtheora --enable-libv4l2 --enable-postproc --enable-pic --enable-pthreads --enable-shared --enable-libxcb --disable-stripping --disable-static --disable-librtmp --enable-vaapi --enable-vdpau --enable-libopus --disable-debug
  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, mov,mp4,m4a,3gp,3g2,mj2, from 'https://some_site/some_video.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isomavc1mp42
    creation_time   : 2020-02-28T16:46:30.000000Z
  Duration: 00:00:06.23, start: 0.000000, bitrate: 2004 kb/s
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x480 [SAR 1:1 DAR 1:1], 1951 kb/s, 30 fps, 30 tbr, 30 tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2020-02-28T16:46:29.000000Z
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 48 kb/s (default)
    Metadata:
      creation_time   : 2020-02-28T16:46:29.000000Z
File 'tmp/my_thumbnail.jpg' already exists. Overwrite ? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x55acb21fbb00] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'tmp/my_thumbnail.jpg':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isomavc1mp42
    encoder         : Lavf58.20.100
    Stream #0:0(und): Video: mjpeg, yuvj444p(pc), 480x480 [SAR 1:1 DAR 1:1], q=2-31, 200 kb/s, 1 fps, 1 tbn, 1 tbc (default)
    Metadata:
      creation_time   : 2020-02-28T16:46:29.000000Z
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
[Parsed_thumbnail_0 @ 0x55acb21e35c0] frame id #58 (pts_time=1.933333) selected from a set of 97 images
frame=    1 fps=0.0 q=2.0 Lsize=N/A time=00:00:01.00 bitrate=N/A dup=1 drop=1 speed=2.04x    
video:39kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown


    


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