Recherche avancée

Médias (1)

Mot : - Tags -/musée

Autres articles (90)

  • Formulaire personnalisable

    21 juin 2013, par

    Cette page présente les champs disponibles dans le formulaire de publication d’un média et il indique les différents champs qu’on peut ajouter. Formulaire de création d’un Media
    Dans le cas d’un document de type média, les champs proposés par défaut sont : Texte Activer/Désactiver le forum ( on peut désactiver l’invite au commentaire pour chaque article ) Licence Ajout/suppression d’auteurs Tags
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire. (...)

  • 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 (...)

  • Qu’est ce qu’un masque de formulaire

    13 juin 2013, par

    Un masque de formulaire consiste en la personnalisation du formulaire de mise en ligne des médias, rubriques, actualités, éditoriaux et liens vers des sites.
    Chaque formulaire de publication d’objet peut donc être personnalisé.
    Pour accéder à la personnalisation des champs de formulaires, il est nécessaire d’aller dans l’administration de votre MediaSPIP puis de sélectionner "Configuration des masques de formulaires".
    Sélectionnez ensuite le formulaire à modifier en cliquant sur sont type d’objet. (...)

Sur d’autres sites (13474)

  • How to write mp4 metadata with ffmpeg without affecting the video data

    13 juillet 2018, par Daniel Quinn

    I’m trying to write metadata to a video file in one step, and capture the "raw data" (no metadata) portion of a video file in another step. The trouble is, with MP4 files, adding metadata to the file appears to alter the raw video data as well, while MKV files act as expected. Here’s an example with two files : test.mkv and test.mp4 :

    MKV

    ffmpeg -i test.mkv -loglevel error -metadata 'arbitrary=string' -codec copy test-new-metadata.mkv
    

    
ffmpeg -i test.mkv              -loglevel error -map 0:v:0 -c copy -f data - -map 0:a:0 -c copy -f data - | md5sum
    
631becf821dca89b150120d25393491a  -
    

    
ffmpeg -i test-new-metadata.mkv -loglevel error -map 0:v:0 -c copy -f data - -map 0:a:0 -c copy -f data - | md5sum
    
631becf821dca89b150120d25393491a  -

    MP4

    ffmpeg -i test.mp4 -loglevel error -metadata 'arbitrary=string' -codec copy test-new-metadata.mp4
    

    
ffmpeg -i test.mp4              -loglevel error -map 0:v:0 -c copy -f data - -map 0:a:0 -c copy -f data - | md5sum
    
b9b28e4ac500be961bd07290a34cf93f  -
    

    
ffmpeg -i test-new-metadata.mp4 -loglevel error -map 0:v:0 -c copy -f data - -map 0:a:0 -c copy -f data - | md5sum
    
d13e7177fae9b341994bc1ee8f3812bc  -

    ...and now webm, just to see if I’m losing my mind :

    Webm

    ffmpeg -i test.webm -loglevel error -metadata 'arbitrary=string' -codec copy test-new-metadata.webm
    

    
ffmpeg -i test.webm              -loglevel error -map 0:v:0 -c copy -f data - -map 0:a:0 -c copy -f data - | md5sum
    
a62e053d3dbf627db4d77c5165152a81  -
    

    
ffmpeg -i test-new-metadata.webm -loglevel error -map 0:v:0 -c copy -f data - -map 0:a:0 -c copy -f data - | md5sum
    
a62e053d3dbf627db4d77c5165152a81  -

    So I’m left wondering if my understanding of how to capture the raw video is misinformed, or if MP4 is "special" in some way. Note that I’m not interested in using ffmpeg’s own hashing functions as I want to run the raw data through an external process. The use of md5sum here is just to test if the output is identical.

    Update : As requested, I’m including the output of the metadata writing step for MP4 files :

    $ ffmpeg -i test.mp4 -metadata 'arbitrary=string' -codec copy test-new-metadata.mp4
    
ffmpeg version 4.0.1 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 8.1.1 (GCC) 20180531
    
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avresample --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-nvenc --enable-omx --enable-shared --enable-version3
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isomavc1
    
    creation_time   : 2010-03-20T21:29:11.000000Z
    
    encoder         : HandBrake 0.9.4 2009112300
    
  Duration: 00:00:05.57, start: 0.000000, bitrate: 551 kb/s
    
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 560x320, 465 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default)
    
    Metadata:
    
      creation_time   : 2010-03-20T21:29:11.000000Z
    
      encoder         : JVT/AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 83 kb/s (default)
    
    Metadata:
    
      creation_time   : 2010-03-20T21:29:11.000000Z
    
Output #0, mp4, to 'test-new-metadata.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isomavc1
    
    arbitrary       : string
    
    encoder         : Lavf58.12.100
    
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 560x320, q=2-31, 465 kb/s, 30 fps, 30 tbr, 90k tbn, 90k tbc (default)
    
    Metadata:
    
      creation_time   : 2010-03-20T21:29:11.000000Z
    
      encoder         : JVT/AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 83 kb/s (default)
    
    Metadata:
    
      creation_time   : 2010-03-20T21:29:11.000000Z
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame=  166 fps=0.0 q=-1.0 Lsize=     377kB time=00:00:05.54 bitrate= 556.7kbits/s speed=4.07e+03x    
    
video:315kB audio:56kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.609490%

    Update 2 : Here’s a link to the misbehaving mp4 file (375k).

  • FFMPEG creating static video ?

    10 juillet 2018, par Kjell

    I’m using ffmpeg 4.0.1 on the latest version of MacOS. I’ve got webcam capture down, as well as creating a video from a series of images. But for some reason, when I try to do screen capture, the outputted video is a bunch of colorful static with the correct audio.

    Here is the command I use :

      ffmpeg -f avfoundation -i '1:0' -y -r 30 -pix_fmt yuv420p test.mp4

    And here are my devices :

    [AVFoundation input device @ 0x7f9924404b00] AVFoundation video devices:
    
[AVFoundation input device @ 0x7f9924404b00] [0] FaceTime HD Camera
    
[AVFoundation input device @ 0x7f9924404b00] [1] Capture screen 0
    
[AVFoundation input device @ 0x7f9924404b00] AVFoundation audio devices:
    
[AVFoundation input device @ 0x7f9924404b00] [0] Built-in Microphone

    And here is some of my config :

    built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
    
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
libavutil      56. 14.100 / 56. 14.100
    
libavcodec     58. 18.100 / 58. 18.100
    
libavformat    58. 12.100 / 58. 12.100
    
libavdevice    58.  3.100 / 58.  3.100
    
libavfilter     7. 16.100 /  7. 16.100
    
libavresample   4.  0.  0 /  4.  0.  0
    
libswscale      5.  1.100 /  5.  1.100
    
libswresample   3.  1.100 /  3.  1.100
    
libpostproc    55.  1.100 / 55.  1.100

    Anyone have an ideas on how to fix this ?

    Update with Terminal Log

    I reran the terminal command, let it run for 30s, and then canceled the operation.

    [12:41:40 Developer@Kjells-MacBook-Air ~/desktop]$ ffmpeg -f 
    

    
avfoundation -r 30 -i "1:0" -pix_fmt yuv420p output.mov
    
ffmpeg version 4.0.1 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
[avfoundation @ 0x7fc9a4808e00] Selected pixel format (yuv420p) is not supported by the input device.
    
[avfoundation @ 0x7fc9a4808e00] Supported pixel formats:
    
[avfoundation @ 0x7fc9a4808e00]   uyvy422
    
[avfoundation @ 0x7fc9a4808e00]   yuyv422
    
[avfoundation @ 0x7fc9a4808e00]   nv12
    
[avfoundation @ 0x7fc9a4808e00]   0rgb
    
[avfoundation @ 0x7fc9a4808e00]   bgr0
    
[avfoundation @ 0x7fc9a4808e00] Overriding selected pixel format to use uyvy422 instead.
    
Input #0, avfoundation, from '1:0':
    
  Duration: N/A, start: 116959.473833, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 1366x768, 30 tbr, 1000k tbn, 1000k tbc
    
    Stream #0:1: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (pcm_f32le (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x7fc9a48e4a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 0x7fc9a48e4a00] profile High, level 3.2
    
[libx264 @ 0x7fc9a48e4a00] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=6 lookahead_threads=1 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, mov, to 'output.mov':
    
  Metadata:
    
    encoder         : Lavf58.12.100
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1366x768, q=-1--1, 30 fps, 15360 tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc58.18.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
    
    Metadata:
    
      encoder         : Lavc58.18.100 aac
    
frame=  892 fps= 30 q=-1.0 Lsize=    1907kB time=00:00:29.74 bitrate= 525.1kbits/s speed=0.991x    
    
video:1409kB audio:465kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.754444%
    
[libx264 @ 0x7fc9a48e4a00] frame I:4     Avg QP:18.77  size:288641
    
[libx264 @ 0x7fc9a48e4a00] frame P:225   Avg QP:24.73  size:   790
    
[libx264 @ 0x7fc9a48e4a00] frame B:663   Avg QP:33.63  size:   166
    
[libx264 @ 0x7fc9a48e4a00] consecutive B-frames:  0.8%  0.2%  0.3% 98.7%
    
[libx264 @ 0x7fc9a48e4a00] mb I  I16..4: 19.3% 10.7% 70.0%
    
[libx264 @ 0x7fc9a48e4a00] mb P  I16..4:  0.6%  0.0%  0.1%  P16..4:  0.4%  0.0%  0.0%  0.0%  0.0%    skip:98.7%
    
[libx264 @ 0x7fc9a48e4a00] mb B  I16..4:  0.0%  0.3%  0.0%  B16..8:  1.0%  0.0%  0.0%  direct: 0.0%  skip:98.7%  L0:58.1% L1:41.7% BI: 0.2%
    
[libx264 @ 0x7fc9a48e4a00] 8x8 transform intra:30.2% inter:6.9%
    
[libx264 @ 0x7fc9a48e4a00] coded y,uvDC,uvAC intra: 33.5% 34.9% 33.2% inter: 0.0% 0.0% 0.0%
    
[libx264 @ 0x7fc9a48e4a00] i16 v,h,dc,p: 10% 89%  1%  0%
    
[libx264 @ 0x7fc9a48e4a00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12%  7% 81%  0%  0%  0%  0%  0%  0%
    
[libx264 @ 0x7fc9a48e4a00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 47% 13%  2%  3%  1% 12%  1%  9%
    
[libx264 @ 0x7fc9a48e4a00] i8c dc,h,v,p: 65% 29%  5%  1%
    
[libx264 @ 0x7fc9a48e4a00] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fc9a48e4a00] ref P L0: 74.7%  2.8% 20.6%  1.9%
    
[libx264 @ 0x7fc9a48e4a00] ref B L0: 56.2% 43.2%  0.7%
    
[libx264 @ 0x7fc9a48e4a00] ref B L1: 97.7%  2.3%
    
[libx264 @ 0x7fc9a48e4a00] kb/s:388.06
    
[aac @ 0x7fc9a5217400] Qavg: 252.357
    
Exiting normally, received signal 2.

    To note : I added -pix_fmt yuv420 because without it, none of my ffmpeg output seems to be able to run via Quicktime Player. Since this is the only player I use currently, I want my output to run on this player. I noticed there is a log about switching to uyvy422, but I think this is a bug because when I manually add uyvy422, the output cannot be opened at all.

  • FFMPEG, "Could not open file.. " "av_interleaved_write_frame() : Input/output error"

    10 juillet 2018, par justaguytrynabuildawebsite

    Trying to run a simple ffmpeg line on my Ubuntu 16.04 vps shell,

    ffmpeg -ss 1 -i /var/www/html/lib/vid/4581989_022810100718.mp4 -r 1 -vframes 1 /var/www/html/lib/thumbnail/4581989_022810100718/20.jpg

    but am met with

    Could not open file

    and

    av_interleaved_write_frame(): Input/output error

    I have already tried giving the ../lib/vid folder in question 777 permissions but it didnt help.

    Full print-out :

    ffmpeg version 2.8.14-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
    
 built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 20160609
    
 configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
    
libavutil      54. 31.100 / 54. 31.100
    
libavcodec     56. 60.100 / 56. 60.100
    
libavformat    56. 40.101 / 56. 40.101
    
libavdevice    56.  4.100 / 56.  4.100
    
libavfilter     5. 40.101 /  5. 40.101
    
libavresample   2.  1.  0 /  2.  1.  0
    
libswscale      3.  1.101 /  3.  1.101
    
libswresample   1.  2.101 /  1.  2.101
    
libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/lib/vid/4581989_022810100718.mp4':
    
Metadata:
    
major_brand     : isom
    
minor_version   : 512
    
compatible_brands: isomiso2avc1mp41
    
encoder         : Lavf56.36.100
    
Duration: 00:00:04.90, start: 0.000000, bitrate: 2595 kb/s
    
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1820x1024 [SAR 1:1 DAR 455:256], 2593 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
Metadata:
    
  handler_name    : VideoHandler
    
[swscaler @ 0x1652280] deprecated pixel format used, make sure you did set range correctly
    
Output #0, image2, to '/var/www/html/lib/thumbnail/4581989_022810100718/20.jpg':
    
Metadata:
    
major_brand     : isom
    
minor_version   : 512
    
compatible_brands: isomiso2avc1mp41
    
encoder         : Lavf56.40.101
    
Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 1820x1024 [SAR 1:1 DAR 455:256], q=2-31, 200 kb/s, 1 fps, 1 tbn, 1 tbc (default)
    
Metadata:
    
  handler_name    : VideoHandler
    
  encoder         : Lavc56.60.100 mjpeg
    
Stream mapping:
    
Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
    
Press [q] to stop, [?] for help
    
[image2 @ 0x16103a0] Could not open file : /var/www/html/lib/thumbnail/4581989_022810100718/20.jpg
    
av_interleaved_write_frame(): Input/output error
    
frame=    1 fps=0.0 q=3.4 Lsize=N/A time=00:00:01.00 bitrate=N/A    
    
video:48kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
Conversion failed!

Navigation