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Collections - Formulaire de création rapide
19 février 2013, par
Mis à jour : Février 2013
Langue : français
Type : Image
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Les Miserables
4 juin 2012, par
Mis à jour : Février 2013
Langue : English
Type : Texte
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Ne pas afficher certaines informations : page d’accueil
23 novembre 2011, par
Mis à jour : Novembre 2011
Langue : français
Type : Image
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The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
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Richard Stallman et la révolution du logiciel libre - Une biographie autorisée (version epub)
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (63)
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Participer à sa traduction
10 avril 2011Vous 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 autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Contribute to translation
13 avril 2011You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
MediaSPIP is currently available in French and English (...)
Sur d’autres sites (14223)
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Convert video by ffmpeg not working in chrome
18 novembre 2015, par DucthienI used command :
$ ffmpeg -y -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -an -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 1500k -maxrate 1500k -bufsize 1000k -vf "scale=-1:720" "E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4"
to get only video with format h264 (without sound). Cmd result :
ffmpeg version N-76224-ga7c5005 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 4.100 / 55. 4.100
libavcodec 57. 9.100 / 57. 9.100
libavformat 57. 10.101 / 57. 10.101
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 12.100 / 6. 12.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf52.94.0
Duration: 00:02:29.95, start: 0.000000, bitrate: 1787 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1629 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 151 kb/s (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandler
[libx264 @ 000000821f5fbe40] using SAR=1/1
[libx264 @ 000000821f5fbe40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 000000821f5fbe40] profile High, level 3.1
[libx264 @ 000000821f5fbe40] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=24 keyint_min=13 scenecut=0 intra_refresh=0 rc_lookahead=24 rc=cbr mbtree=1 bitrate=1500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1500 vbv_bufsize=1000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.10.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 1500 kb/s, 29.97 fps, 30k tbn, 29.97 tbc (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
encoder : Lavc57.9.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 4494 fps= 38 q=-1.0 Lsize= 25050kB time=00:02:29.88 bitrate=1369.1kbits/s
video:25003kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.188374%
[libx264 @ 000000821f5fbe40] frame I:188 Avg QP:17.73 size: 40170
[libx264 @ 000000821f5fbe40] frame P:2060 Avg QP:23.64 size: 7302
[libx264 @ 000000821f5fbe40] frame B:2246 Avg QP:24.03 size: 1339
[libx264 @ 000000821f5fbe40] consecutive B-frames: 29.6% 8.4% 8.9% 53.1%
[libx264 @ 000000821f5fbe40] mb I I16..4: 27.8% 64.1% 8.1%
[libx264 @ 000000821f5fbe40] mb P I16..4: 5.4% 12.4% 0.3% P16..4: 26.4% 4.3% 2.0% 0.0% 0.0% skip:49.3%
[libx264 @ 000000821f5fbe40] mb B I16..4: 0.2% 0.4% 0.0% B16..8: 17.5% 0.7% 0.1% direct: 0.9% skip:80.2% L0:41.5% L1:55.9% BI: 2.7%
[libx264 @ 000000821f5fbe40] 8x8 transform intra:66.9% inter:89.7%
[libx264 @ 000000821f5fbe40] coded y,uvDC,uvAC intra: 39.1% 57.7% 20.9% inter: 4.7% 10.1% 0.3%
[libx264 @ 000000821f5fbe40] i16 v,h,dc,p: 43% 29% 8% 20%
[libx264 @ 000000821f5fbe40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 23% 21% 4% 5% 5% 5% 5% 5%
[libx264 @ 000000821f5fbe40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 26% 9% 4% 8% 7% 7% 5% 4%
[libx264 @ 000000821f5fbe40] i8c dc,h,v,p: 49% 24% 20% 7%
[libx264 @ 000000821f5fbe40] Weighted P-Frames: Y:9.1% UV:8.9%
[libx264 @ 000000821f5fbe40] ref P L0: 74.5% 11.1% 11.0% 3.3% 0.1%
[libx264 @ 000000821f5fbe40] ref B L0: 91.0% 7.9% 1.1%
[libx264 @ 000000821f5fbe40] ref B L1: 96.4% 3.6%
[libx264 @ 000000821f5fbe40] kb/s:1365.92then i get audio from mp4 file :
ffmpeg -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -vn -acodec copy "E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4"
cmd result :
$ ffmpeg -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -vn -acodec copy "E:\SharingVideo\src\mai
n\webapp\resources\video\input\audio.mp4"
ffmpeg version N-76224-ga7c5005 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 4.100 / 55. 4.100
libavcodec 57. 9.100 / 57. 9.100
libavformat 57. 10.101 / 57. 10.101
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 12.100 / 6. 12.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf52.94.0
Duration: 00:02:29.95, start: 0.000000, bitrate: 1787 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1629 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 151 kb/s (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandler
[mp4 @ 0000000b967e30a0] Codec for stream 0 does not use global headers but container format requires global headers
Output #0, mp4, to 'E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.10.101
Stream #0:0(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 151 kb/s (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandler
Stream mapping:
Stream #0:1 -> #0:0 (copy)
Press [q] to stop, [?] for help
size= 2806kB time=00:02:29.86 bitrate= 153.4kbits/s
video:0kB audio:2780kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.933710%after that. I create .mpd file by MP4box :
MP4Box -dash 10000 -profile onDemand -rap -out "E:\SharingVideo\src\main\webapp\resources\video\input\input_dash.mpd" "E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4"#video:id=video_2Mb "E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4"#audio:id=audio
the video play fine in firefox and IE but in chrome it doesn’t working :
VIDEOJS: ERROR: (CODE:3 MEDIA_ERR_DECODE) The video playback was aborted due to a corruption problem or because the video used features your browser did not support.
Video Element Error: MEDIA_ERR_DECODE
VIDEOJS: ERROR: (CODE:4 MEDIA_ERR_SRC_NOT_SUPPORTED) The video could not be loaded, either because the server or network failed or because the format is not supported.
Video Element Error: MEDIA_ERR_SRC_NOT_SUPPORTEDI don’t know why it doesn’t work in chrome, please help me.What did I wrong something to display video in chrome ?
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Anomalie #3634 (Nouveau) : bando liens rapides : le lien "aller à la recherche" ne marche pas
3 janvier 2016, par Peet duLe lien ’_Aller à la recherche_’ cherche un item id=recherche, mais le form ne porte pas cet id.
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ffmpeg : Cover image for video
15 avril 2014, par Michael HerrmannI have a video file
video.mp4
with sound (file information and download links below). I also have an imagecover.png
which contains a logo and a caption for the video. I want to create a new video which starts by showingcover.png
, then blends in the first frame ofvideo.mp4
within one second, then continues to playvideo.mp4
.My failed attempt :
I used ffmpeg to extract the first frame of
video.mp4
into image filefirst_frame.png
. I then created videofade.mp4
with a transition fromcover.png
tofirst_frame.png
:ffmpeg -loop 1 -i cover.png -r 24 -loop 1 -i first_frame.png -r 24 -filter_complex "[1:v][0:v]blend=all_expr='A*(if(gte(T,1),1,T/1))+B*(1-(if(gte(T,1),1,T/1)))'" -t 2 fade.mp4
I then wanted to simply concatenate
fade.mp4
andvideo.mp4
to produce the desired result. I created a filemylist.txt
with the following contents :file 'fade.mp4'
file 'video.mp4'Then I issued the following command to
ffmpeg
:ffmpeg -f concat -i mylist.txt -c copy out.mp4
Unfortunately, this produced a lot of warnings of the following form :
[concat @ 00000000003580e0] Invalid stream index 1:01:24.05 bitrate= 136.3kbits/s
The resulting video
out.mp4
does correctly start withfade.mp4
, but unfortunately continues with completely random colour patterns when it comes to playingvideo.mp4
.File information for
video.mp4
:- Stream 0 :
- Type : Video
- Codec : H264 - MPEG-4 AVC (part10) (avc1)
- Resolution : 800x600
- Frame rate : 24
- Decoded format : Planar 4:2:0 YUV
- Stream 1 :
- Type : Audio
- Codec : MPEG Audio layer 1/2/3 (mpga)
- Channels : Mono
- Sample rate : 16000 Hz
- Bitrate : 24 kb/s
File information for
cover.png
:- Resolution : 800x600
Links to files :
video.mp4
: https://www.dropbox.com/s/ci5wlz7abn232go/video.mp4cover.png
: https://www.dropbox.com/s/8eeon1j213s6l5x/cover.pngfirst_frame.mp4
: https://www.dropbox.com/s/hrxzcdjki0b9xqt/first_frame.pngfade.mp4
: https://www.dropbox.com/s/ohuf98xn3gmkniq/fade.mp4mylist.txt
: https://www.dropbox.com/s/kjqnzsa50uslqcr/mylist.txtout.mp4
: https://www.dropbox.com/s/0h27z7ahjg3pbbw/out.mp4
- Stream 0 :