
Recherche avancée
Médias (1)
-
La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (23)
-
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
-
Ajouter notes et légendes aux images
7 février 2011, parPour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...) -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)
Sur d’autres sites (5825)
-
FFmpeg DTS out of order
23 septembre 2016, par Tim'sI’m having this problem when I want to concat and record two mp4 vids with ffmpeg. The output I get is :
[concat @ 0x2566e80] DTS 4079 < 8156 out of order0:02:43.12 bitrate= 291.3kbits/s
Complete output :
/opt/ffmpeg/ffmpeg -f concat -i liste.txt -strict -2 -c:v libx264 -c:a aac output.mp4
ffmpeg version N-66233-g16de4d9 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 11 2014 18:19:48 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libx264
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, concat, from 'liste.txt':
Duration: N/A, start: 0.000000, bitrate: 681 kb/s
Stream #0:0: Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 636x360, 585 kb/s, 25 fps, 25 tbr, 50 tbn, 50 tbc
Stream #0:1: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 96 kb/s
[libx264 @ 0x278f760] using cpu capabilities: MMX2 SSE2Fast SSSE3
[libx264 @ 0x278f760] profile High, level 3.0
[libx264 @ 0x278f760] 264 - core 142 r2431 ac76440 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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 trel lis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 in terlaced=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, mp4, to 'output.mp4':
Metadata:
encoder : Lavf56.4.101
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 636x360, q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc56.1.100 libx264
Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc56.1.100 aac
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[concat @ 0x2690e00] DTS 4079 < 8156 out of order0:02:43.12 bitrate= 676.2kbits/s
frame= 5060 fps= 10 q=28.0 Lsize= 20857kB time=00:06:44.60 bitrate= 422.3kbits/s dup=0 drop=5055
video:14484kB audio:6193kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.864065%
[libx264 @ 0x278f760] frame I:27 Avg QP:19.39 size: 27262
[libx264 @ 0x278f760] frame P:2986 Avg QP:24.08 size: 3879
[libx264 @ 0x278f760] frame B:2047 Avg QP:26.48 size: 1228
[libx264 @ 0x278f760] consecutive B-frames: 34.9% 30.6% 8.8% 25.7%
[libx264 @ 0x278f760] mb I I16..4: 10.8% 45.8% 43.4%
[libx264 @ 0x278f760] mb P I16..4: 4.0% 7.1% 3.5% P16..4: 25.5% 11.1% 4.2% 0.0% 0.0% skip:44.6%
[libx264 @ 0x278f760] mb B I16..4: 0.4% 0.6% 0.8% B16..8: 23.8% 5.9% 1.2% direct: 1.0% skip:66.4% L0:51.2% L1:42.6% BI: 6.2%
[libx264 @ 0x278f760] 8x8 transform intra:47.3% inter:58.5%
[libx264 @ 0x278f760] coded y,uvDC,uvAC intra: 51.2% 63.2% 24.8% inter: 10.5% 13.1% 1.1%
[libx264 @ 0x278f760] i16 v,h,dc,p: 18% 46% 10% 26%
[libx264 @ 0x278f760] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 29% 20% 4% 4% 4% 5% 5% 6%
[libx264 @ 0x278f760] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 23% 13% 5% 7% 7% 7% 6% 6%
[libx264 @ 0x278f760] i8c dc,h,v,p: 48% 26% 19% 8%
[libx264 @ 0x278f760] Weighted P-Frames: Y:2.2% UV:1.6%
[libx264 @ 0x278f760] ref P L0: 78.9% 11.3% 7.2% 2.6% 0.0%
[libx264 @ 0x278f760] ref B L0: 94.7% 4.9% 0.4%
[libx264 @ 0x278f760] ref B L1: 97.8% 2.2%
[libx264 @ 0x278f760] kb/s:586.22I have also tried others ffmepg options like :
-preset -vcodec libx264 -crf 25 -s 360x288 -vpre veryslow -c aac -ar 44100 -ab 56k
with no success. Can someone help me ? -
G.I. Joe Custom Multimedia
30 mars 2012, par Multimedia Mike — GeneralI received this 3-disc set of G.I. Joe CD-ROMs today :
Copyright 2003, and labeled as PC ONLY. Each disc claims to have 2 episodes. So are these some sort of video discs ? Any gaming elements ? I dove in to investigate.
So, it turns out that there are some games on these discs, done in Flash Player (which tells me that these were probably available on the web at some point). Here’s a shooting gallery game from the first disc :
As promised by the CD-ROM copy, the menu does grant access to 2 classic G.I. Joe episodes. Selecting either one launches this :
Powered by C-ezy ? Am I interpreting that correctly ? Anyway, the video player goes fullscreen and looks fine (given the source material). I can’t capture screenshots and controls are limited to : space for pause, ESC to exit player, and up/down to control volume. No seeking and certainly no onscreen controls. Pretty awful player.
Studying the first disc, I find a 550 MB file with the name 5859Hasbro.egm. Coupled with ep58.cfg and ep59.cfg files in the same directory, I gather that the disc has G.I. Joe episodes 58 and 59 (though the exact episodes, “There’s No Place Like Springfield” parts 1 and 2, are listed on Wikipedia as being episodes 154 and 155 ; but who’s counting ?). The cfg files contain this text :
ep58.cfg : EGM_GIJOE.exe 5859Hasbro.egm /noend /track:0 /singletrack
ep59.cfg :
EGM_GIJOE.exe
5859Hasbro.egm /noend /track:1 /singletrackThe big EGM file starts with the string “Egenie Player”. After that, I see absolutely no clues. The supporting EGM_GIJOE.exe file has some interesting strings : “Decore Bits Per Pixel” (I know I have seen “Decore” used to mean “decoding core” in some libraries), “Egenie Player – %s, Version :%s”, “4th June 2002″, a list of common FourCC tags seen in AVI files, “Brought to you by Martin, Patrick Bob and Bren” (do you suppose “Patrick Bob” is one person’s name ?), a list of command line options…
Aha ! A URL : http:\www.e-genie.tv (yep, backslashes, not forward slashes). e-genie.tv seems to redirect to mygenie.tv, which… doesn’t appear to be strictly related to video technology these days.
-
Scroll one image top to bottom
17 septembre 2018, par CyberI am trying to scroll an image top to bottom like this video :
https://youtu.be/8GCrrsiBLzsAnd here’s what I tried
ffmpeg -loop 1 -t 24 -i "image.jpg" -filter_complex "color=000000:s=640x360[bg]; [bg][0]overlay=shortest=1:y='min(0,-(t)*26)'" -y out6.mp4
But video didn’t created, ffmpeg close immediately and returns following results :
ffmpeg version N-91960-g63c69d51c7 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 8.2.1 (GCC) 20180813
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --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-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
libavutil 56. 19.101 / 56. 19.101
libavcodec 58. 30.100 / 58. 30.100
libavformat 58. 18.101 / 58. 18.101
libavdevice 58. 4.103 / 58. 4.103
libavfilter 7. 31.100 / 7. 31.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
Input #0, image2, from 'image.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 134122 kb/s
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x1920 [SAR 96:96 DAR 2:3], 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 (mjpeg) -> overlay:overlay
overlay -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[swscaler @ 000001a855f90100] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 000001a856483200] using SAR=1/1
[libx264 @ 000001a856483200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001a856483200] profile High, level 3.0, 4:2:0, 8-bit
[libx264 @ 000001a856483200] 264 - core 157 r2932 303c484 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=11 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, mp4, to 'out6.mp4':
Metadata:
encoder : Lavf58.18.101
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.30.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1