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  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Changer son thème graphique

    22 février 2011, par

    Le thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
    Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
    Modifier le thème graphique utilisé
    Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
    Il suffit ensuite de se rendre dans l’espace de configuration du (...)

Sur d’autres sites (5472)

  • FFmpeg/FFplay directshow and blackmagic

    21 janvier 2016, par max246

    I got a BlackMagic intensity pro 4k capturing card, which is working fine with the express tool, I can see the live feed and record, but after I tried different stuff from what I found online to make ffplay/ffmpeg working, I ended up to have just a black screen.

    I have checked if all the versions of my ffmpeg files were eanable-decklinnk, I have compiled the latest one with the latest version of the api, but still I get a black screen instead of the actually feed.

    ffmpeg -list_devices true -f dshow -i dummy
    
ffmpeg version N-77245-g7209c94 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (Rev4, Built by MSYS2 project)
    
  configuration:  --enable-avisynth --enable-libbluray --enable-libcaca --enable -libass --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
    
 --enable-libschroedinger --enable-libsoxr --enable-libtwolame --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libopus --enable-libtesseract --
    
enable-libdcadec --enable-libbs2b --enable-libmfx --enable-libfreetype --enable-fontconfig --enable-libfribidi --enable-opengl --enable-libvpx --enable-libkvaza
    
ar --enable-libwebp --enable-decklink --enable-libgme --disable-w32threads --enable-opencl --enable-libzimg --enable-openssl --disable-debug
    
  libavutil      55. 10.100 / 55. 10.100
    
  libavcodec     57. 17.100 / 57. 17.100
    
  libavformat    57. 20.100 / 57. 20.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 21.100 /  6. 21.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
[dshow @ 0000000ba36b6480] DirectShow video devices (some may be both video and audio devices)
    
[dshow @ 0000000ba36b6480]  "Blackmagic WDM Capture"
    
[dshow @ 0000000ba36b6480]     Alternative name "@device_pnp_\\?\decklink#avstream#5&2550cef9&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\decklinkcapture1"
    
[dshow @ 0000000ba36b6480]  "Decklink Video Capture"
    
[dshow @ 0000000ba36b6480]     Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{44A8B5C7-13B6-4211-BD40-35B629D9E6DF}"
    
[dshow @ 0000000ba36b6480] DirectShow audio devices
    
[dshow @ 0000000ba36b6480]  "Wej?øcie liniowe (Blackmagic Audio)"
    
[dshow @ 0000000ba36b6480]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{977E2DB6-B17C-4343-9018-652924C20A8C}"
    
[dshow @ 0000000ba36b6480]  "Decklink Audio Capture"
    
[dshow @ 0000000ba36b6480]     Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{AAA22F7E-5AA0-49D9-8C8D-B52B1AA92EB7}"
    
dummy: Immediate exit requested

    The result above tells me that ffmpeg can see the card and I am able to open a communication, I have checked one post where it says you need to specific which input type is showing, otherwise it will never work, and I did that, but still no luck.

    By running the command line above, I can only see a black screen but not actually errors.

    I am running Windows 8.1 64bit.

    ffplay  -pixel_format uyvy422 -framerate 25 -f dshow -i video="Decklink Video Capture"  -format x264
    
ffplay version N-77245-g7209c94 Copyright (c) 2003-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (Rev4, Built by MSYS2 project)
    
  configuration:  --enable-avisynth --enable-libbluray --enable-libcaca --enable-libass --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
    
 --enable-libschroedinger --enable-libsoxr --enable-libtwolame --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libopus --enable-libtesseract --
    
enable-libdcadec --enable-libbs2b --enable-libmfx --enable-libfreetype --enable-fontconfig --enable-libfribidi --enable-opengl --enable-libvpx --enable-libkvaza
    
ar --enable-libwebp --enable-decklink --enable-libgme --disable-w32threads --enable-opencl --enable-libzimg --enable-openssl --disable-debug
    
  libavutil      55. 10.100 / 55. 10.100
    
  libavcodec     57. 17.100 / 57. 17.100
    
  libavformat    57. 20.100 / 57. 20.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 21.100 /  6. 21.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
Input #0, dshow, from 'video=Decklink Video Capture':    0B f=0/0
    
  Duration: N/A, start: 0.138773, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 720x576, 25 tbr,
    
10000k tbn, 25 tbc
    
   1.51 M-V: -0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0

  • Displaying the current frame of a video after skipping using drawtext/start_number not evaluation any variables

    25 mars 2023, par DJ Quardaboff

    I would like to display the current frame number on a video while playing it with ffplay. I have already seen this solution, but when I seek to any part of the video, the counter resets. There's a variable, start_number, which the ffplay documentation says is The starting frame number for the n/frame_num variable. The default value is "0". It seems that n is set to that when starting the video or seeking between I-frames. I thought setting this variable to %{floor(t*60)} would solve my problem, but after running this :

    



    ffplay -i "video.mp4" -vf drawtext="fontsize=30:box=1:boxcolor=white:fontcolor=black:fontfile=/Windows/Fonts/arial.ttf:start_number=floor(t*60):text=%{n}"


    



    I got the following console output :

    



    ffplay version N-84679-gd65b595 Copyright (c) 2003-2017 the FFmpeg developers
  built with gcc 6.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-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-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --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. 51.100 / 55. 51.100
  libavcodec     57. 86.103 / 57. 86.103
  libavformat    57. 67.100 / 57. 67.100
  libavdevice    57.  3.101 / 57.  3.101
  libavfilter     6. 78.100 /  6. 78.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':=    0B f=0/0
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 2017-03-30T02:49:20.000000Z
    encoder         : Open Broadcaster Software v0.659b
  Duration: 00:05:36.85, start: 0.000000, bitrate: 72636 kb/s
    Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 162 kb/s (default)
    Metadata:
  creation_time   : 2017-03-30T02:49:20.000000Z
  handler_name    : Sound Media Handler
Stream #0:1(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/iec61966-2-1), 2560x1440, 72465 kb/s, 60 fps, 60 tbr, 1k tbn, 120 tbc (default)
Metadata:
  creation_time   : 2017-03-30T02:49:20.000000Z
  handler_name    : Video Media Handler
  encoder         : AVC Coding
[drawtext @ 00000000122770e0] [Eval @ 0000000008f3eb60] Undefined constant or missing '(' in 't*60)'
[drawtext @ 00000000122770e0] Unable to parse option value "floor(t*60)"
[drawtext @ 00000000122770e0] [Eval @ 0000000008f3ebd0] Undefined constant or missing '(' in 't*60)'
[drawtext @ 00000000122770e0] Unable to parse option value "floor(t*60)"
[drawtext @ 00000000122770e0] Error setting option start_number to value floor(t*60).
[Parsed_drawtext_0 @ 000000000263eca0] Error applying options to the filter.
Error initializing filter 'drawtext' with args 'fontsize=30:box=1:boxcolor=white:fontcolor=black:fontfile=/Windows/Fonts/arial.ttf:start_number=floor(t*60):text=%{n}'
   0.01 A-V:    nan fd=   0 aq=   22KB vq= 5866KB sq=    0B f=0/0


    



    In fact, any variable in start_number's assignment invokes this error. I don't know if I have the correct syntax, but does this mean it doesn't evaluate expressions ? Or maybe it doesn't accept variables for some reason ?

    



    After that downer I tried just setting the text to %{t}, which played the video, but repeatedly gave this error and had no text in the top left corner :

    



    [Parsed_drawtext_0 @ 0000000003e54ea0] %{t} is not known 0B f=0/0


    



    So does the current time variable just not work in drawtext ?
    
Is there another way to write the current frame on the video or even on the console window ?

    



    Using Windows 10 Enterprise and the latest build of ffplay for windows at this time.

    


  • Displaying the current frame of a video after skipping using drawtext/start_number not evaluation any variables

    30 mars 2017, par DJ Quardaboff

    I would like to display the current frame number on a video while playing it with ffplay. I have already seen this solution, but when I seek to any part of the video, the counter resets. There’s a variable, start_number, which the ffplay documentation says is The starting frame number for the n/frame_num variable. The default value is "0". It seems that n is set to that when starting the video or seeking between I-frames. I thought setting this variable to %{floor(t*60)} would solve my problem, but after running this :

    ffplay -i "video.mp4" -vf drawtext="fontsize=30:box=1:boxcolor=white:fontcolor=black:fontfile=/Windows/Fonts/arial.ttf:start_number=floor(t*60):text=%{n}"

    I got the following console output :

    ffplay version N-84679-gd65b595 Copyright (c) 2003-2017 the FFmpeg developers
    
  built with gcc 6.3.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-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-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --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. 51.100 / 55. 51.100
    
  libavcodec     57. 86.103 / 57. 86.103
    
  libavformat    57. 67.100 / 57. 67.100
    
  libavdevice    57.  3.101 / 57.  3.101
    
  libavfilter     6. 78.100 /  6. 78.100
    
  libswscale      4.  3.101 /  4.  3.101
    
  libswresample   2.  4.100 /  2.  4.100
    
  libpostproc    54.  2.100 / 54.  2.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':=    0B f=0/0
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 2017-03-30T02:49:20.000000Z
    
    encoder         : Open Broadcaster Software v0.659b
    
  Duration: 00:05:36.85, start: 0.000000, bitrate: 72636 kb/s
    
    Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 162 kb/s (default)
    
    Metadata:
    
  creation_time   : 2017-03-30T02:49:20.000000Z
    
  handler_name    : Sound Media Handler
    
Stream #0:1(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/iec61966-2-1), 2560x1440, 72465 kb/s, 60 fps, 60 tbr, 1k tbn, 120 tbc (default)
    
Metadata:
    
  creation_time   : 2017-03-30T02:49:20.000000Z
    
  handler_name    : Video Media Handler
    
  encoder         : AVC Coding
    
[drawtext @ 00000000122770e0] [Eval @ 0000000008f3eb60] Undefined constant or missing '(' in 't*60)'
    
[drawtext @ 00000000122770e0] Unable to parse option value "floor(t*60)"
    
[drawtext @ 00000000122770e0] [Eval @ 0000000008f3ebd0] Undefined constant or missing '(' in 't*60)'
    
[drawtext @ 00000000122770e0] Unable to parse option value "floor(t*60)"
    
[drawtext @ 00000000122770e0] Error setting option start_number to value floor(t*60).
    
[Parsed_drawtext_0 @ 000000000263eca0] Error applying options to the filter.
    
Error initializing filter 'drawtext' with args 'fontsize=30:box=1:boxcolor=white:fontcolor=black:fontfile=/Windows/Fonts/arial.ttf:start_number=floor(t*60):text=%{n}'
    
   0.01 A-V:    nan fd=   0 aq=   22KB vq= 5866KB sq=    0B f=0/0

    In fact, any variable in start_number’s assignment invokes this error. I don’t know if I have the correct syntax, but does this mean it doesn’t evaluate expressions ? Or maybe it doesn’t accept variables for some reason ?

    After that downer I tried just setting the text to %{t}, which played the video, but repeatedly gave this error and had no text in the top left corner :

    [Parsed_drawtext_0 @ 0000000003e54ea0] %{t} is not known 0B f=0/0

    So does the current time variable just not work in drawtext ?
    Is there another way to write the current frame on the video or even on the console window ?

    Using Windows 10 Enterprise and the latest build of ffplay for windows at this time.

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