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Autres articles (39)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (6086)

  • Is there any way to remove Protected metadata ?

    23 septembre 2020, par Nojus741

    I have an Audio file which plays fine in VLC player, but not in other players. I opened up properties of the file and it says Encryption : Encrypted, but there is no protection on this file as it plays in VLC player. Is there any way to remove this metadata ?

    


    File info :

    


    Format                                   : iso6
Codec ID                                 : iso6 (iso6/dash)
File size                                : 127 MiB
Duration                                 : 1 h 29 min
Overall bit rate                         : 199 kb/s

Audio
ID                                       : 1
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : enca-40-2
Duration                                 : 1 h 29 min
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 123 MiB (96%)
Language                                 : Lithuanian
Default                                  : Yes
Alternate group                          : 1
Encryption                               : Encrypted


    


    The error I get with ffmpeg :

    


    ffmpeg version git-2020-06-28-4cfcfb3 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.3.1 (GCC) 20200621
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 55.100 / 56. 55.100
  libavcodec     58. 93.100 / 58. 93.100
  libavformat    58. 47.100 / 58. 47.100
  libavdevice    58. 11.100 / 58. 11.100
  libavfilter     7. 86.100 /  7. 86.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
**[mov,mp4,m4a,3gp,3g2,mj2 @ 0000021962e0c2c0] Incorrect number of samples in encryption info**
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\Administrator\Desktop\track_2.mp4':
  Metadata:
    major_brand     : iso6
    minor_version   : 0
    compatible_brands: iso6dash
  Duration: 01:29:15.60, bitrate: 199 kb/s
    Stream #0:0(lit): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
At least one output file must be specified


    


  • Unknown V4L2 pixel format equivalent for yuvj420p

    23 mars 2020, par c10ud

    I am trying to pipe a mp4 video located in Videos/video.mp4 to a virtual webcam device located at /dev/video0.

    I tried running :
    ffmpeg -re -i Videos/video.mp4 -map 0:v -f v4l2 /dev/video0
    and I keep getting the following error :

    [video4linux2,v4l2 @ 0x5580cf270100] Unknown V4L2 pixel format equivalent for yuvj420p
    
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
    
Error initializing output stream 0:0 -- 
    
Conversion failed!

    Full log :

    ffmpeg version 4.2.2-1+b1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9 (Debian 9.2.1-28)
    
  configuration: --prefix=/usr --extra-version=1+b1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
    
  libavutil      56. 31.100 / 56. 31.100
    
  libavcodec     58. 54.100 / 58. 54.100
    
  libavformat    58. 29.100 / 58. 29.100
    
  libavdevice    58.  8.100 / 58.  8.100
    
  libavfilter     7. 57.100 /  7. 57.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Videos/video.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2020-03-23T04:24:01.000000Z
    
    com.android.version: 8.1.0
    
  Duration: 00:01:00.14, start: 0.000000, bitrate: 20048 kb/s
    
    Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuvj420p(pc, smpte170m), 1920x1080, 19898 kb/s, SAR 1:1 DAR 16:9, 29.43 fps, 29.58 tbr, 90k tbn, 180k tbc (default)
    
    Metadata:
    
      rotate          : 270
    
      creation_time   : 2020-03-23T04:24:01.000000Z
    
      handler_name    : VideoHandle
    
    Side data:
    
      displaymatrix: rotation of 90.00 degrees
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s (default)
    
    Metadata:
    
      creation_time   : 2020-03-23T04:24:01.000000Z
    
      handler_name    : SoundHandle
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
    
Press [q] to stop, [?] for help
    
[video4linux2,v4l2 @ 0x5580cf270100] Unknown V4L2 pixel format equivalent for yuvj420p
    
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
    
Error initializing output stream 0:0 -- 
    
Conversion failed!

    The desired result is that the mp4 video is seen by apps that try to view the webcam. I am running this on a desktop without a webcam or video interface, which is why I am using /dev/video0

  • SVT-AV1 Vertical 4k video

    14 avril 2020, par Dmitry Maksakov

    I have a vertical 4k video captured on my phone with the following parameters (ffprobe) :

    



    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/smpte170m), 3840x2160, 71980 kb/s, SAR 1:1 DAR 16:9, 59.96 fps, 60 tbr, 90k tbn, 180k tbc (default)
Metadata:
  rotate          : 90
  creation_time   : 2020-04-03T17:17:11.000000Z
  handler_name    : VideoHandle
Side data:
  displaymatrix: rotation of -90.00 degrees


    



    When I try to transcode it to av1 with svt_av1

    



    ffmpeg -i video.mp4 -c:v libsvt_av1 -y output.webm


    



    I am getting

    



    Error instance 1: Source Height must be less than 2160
[libsvt_av1 @ 0x5614a858c400] Error setting encoder parameters: bad parameter (0x80001005)
Segmentation fault


    



    How could I encode such videos ?

    


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