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Médias (91)
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Géodiversité
9 septembre 2011, par ,
Mis à jour : Août 2018
Langue : français
Type : Texte
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USGS Real-time Earthquakes
8 septembre 2011, par
Mis à jour : Septembre 2011
Langue : français
Type : Texte
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SWFUpload Process
6 septembre 2011, par
Mis à jour : Septembre 2011
Langue : français
Type : Texte
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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
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Podcasting Legal guide
16 mai 2011, par
Mis à jour : Mai 2011
Langue : English
Type : Texte
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Creativecommons informational flyer
16 mai 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (76)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Possibilité de déploiement en ferme
12 avril 2011, parMediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
Cela permet, par exemple : de pouvoir partager les frais de mise en œuvre entre plusieurs projets / individus ; de pouvoir déployer rapidement une multitude de sites uniques ; d’éviter d’avoir à mettre l’ensemble des créations dans un fourre-tout numérique comme c’est le cas pour les grandes plate-formes tout public disséminées sur le (...) -
Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.
Sur d’autres sites (4875)
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FFMPEG streaming ip cam get delay from start record to first frame
4 janvier 2019, par Vincent CarreteroI’m recording stream from IP CAM with FFMPEG.
I would like to know the exact timestamp when start the output video.Example :
I have an output mp4 file created at 2019/01/04 09:10:15 (file created).
FFMpeg take few seconds to really start streaming (initialising, etc...)
The first frame really start at 2019/01/04 09:10:19 (just supposed, I would like to get this info).Thanks !
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Overlay a video on another video at specific time with FFmpeg
4 janvier 2019, par Tina JI am trying to overlay a video with another video. I followed the original command OP posted here. And it works, but it overlays the video from time 0 :
ffmpeg -i 720480.mp4 -i sdbug.mov -filter_complex "[0:0][1:0]overlay[out]" -shortest -map [out] -map 0:1 -pix_fmt yuv420p -c:a copy -c:v libx264 -crf 18 new.mp4
I tried the correct answer to specify a time, but it is not working for me : 1) the overlay starts at around second
12
, and 2) video is not played after the overlay is finished.ffmpeg -i 720480.mp4 -i sdbug.mov -filter_complex "[1:v]setpts=PTS+10/TB[a]; [0:v][a]overlay=enable=gte(t\,5):shortest=1[out]" -map [out] -map 0:a -c:v libx264 -crf 18 -pix_fmt yuv420p -c:a copy new.mp4
Anything changed recently on
FFmpeg
?! Why isn’t it working ?Here is the output of this command (it finishes very fast) :
ffmpeg version N-92906-g54109b1d14 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.2.1 (GCC) 20181201
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 --enable-libopenmpt
libavutil 56. 25.100 / 56. 25.100
libavcodec 58. 43.100 / 58. 43.100
libavformat 58. 25.100 / 58. 25.100
libavdevice 58. 6.101 / 58. 6.101
libavfilter 7. 46.101 / 7. 46.101
libswscale 5. 4.100 / 5. 4.100
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '720480.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 2018-07-26T09:23:16.000000Z
Duration: 00:01:50.17, start: 0.000000, bitrate: 3181 kb/s
Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 720x480 [SAR 8:9 DAR 4:3], 2785 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : VideoHandler
timecode : 00:59:55:12
Stream #0:1: Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 98 kb/s (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : SoundHandler
Stream #0:2: Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 98 kb/s (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : SoundHandler
Stream #0:3: Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 98 kb/s (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : SoundHandler
Stream #0:4: Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 98 kb/s (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : SoundHandler
Stream #0:5: Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : TimecodeMediaHandler
timecode : 00:59:55:12
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'sdbug.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2018-08-29T14:50:13.000000Z
Duration: 00:00:10.01, start: 0.000000, bitrate: 10504 kb/s
Stream #1:0(eng): Video: qtrle (rle / 0x20656C72), bgra(progressive), 720x486, 9666 kb/s, SAR 109:120 DAR 109:81, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc (default)
Metadata:
creation_time : 2018-08-29T14:50:13.000000Z
handler_name : Apple Video Media Handler
encoder : Animation
timecode : 00:00:00;00
Stream #1:1(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
Metadata:
creation_time : 2018-08-29T14:50:13.000000Z
handler_name : Time Code Media Handler
timecode : 00:00:00;00
Stream mapping:
Stream #0:0 (h264) -> overlay:main
Stream #1:0 (qtrle) -> setpts
overlay -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (copy)
Stream #0:2 -> #0:2 (copy)
Stream #0:3 -> #0:3 (copy)
Stream #0:4 -> #0:4 (copy)
Press [q] to stop, [?] for help
[libx264 @ 000002b902a3f480] using SAR=8/9
[libx264 @ 000002b902a3f480] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000002b902a3f480] profile High, level 3.0, 4:2:0, 8-bit
[libx264 @ 000002b902a3f480] 264 - core 157 r2935 545de2f - 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=12 lookahead_threads=2 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=18.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'new.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.25.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 720x480 [SAR 8:9 DAR 4:3], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
Metadata:
encoder : Lavc58.43.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1: Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 98 kb/s (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : SoundHandler
Stream #0:2: Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 98 kb/s (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : SoundHandler
Stream #0:3: Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 98 kb/s (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : SoundHandler
Stream #0:4: Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 98 kb/s (default)
Metadata:
creation_time : 2018-07-26T09:23:16.000000Z
handler_name : SoundHandler
frame= 599 fps= 92 q=-1.0 Lsize= 11556kB time=00:01:50.01 bitrate= 860.5kbits/s speed=16.8x
video:6173kB audio:5288kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.828358%
[libx264 @ 000002b902a3f480] frame I:8 Avg QP:13.24 size: 44134
[libx264 @ 000002b902a3f480] frame P:174 Avg QP:18.62 size: 20916
[libx264 @ 000002b902a3f480] frame B:417 Avg QP:21.31 size: 5583
[libx264 @ 000002b902a3f480] consecutive B-frames: 6.0% 1.7% 5.5% 86.8%
[libx264 @ 000002b902a3f480] mb I I16..4: 15.9% 58.9% 25.2%
[libx264 @ 000002b902a3f480] mb P I16..4: 1.4% 13.6% 4.2% P16..4: 36.6% 22.8% 12.3% 0.0% 0.0% skip: 9.0%
[libx264 @ 000002b902a3f480] mb B I16..4: 0.1% 0.9% 0.3% B16..8: 46.4% 10.6% 2.9% direct: 5.5% skip:33.3% L0:53.4% L1:36.9% BI: 9.7%
[libx264 @ 000002b902a3f480] 8x8 transform intra:68.5% inter:65.1%
[libx264 @ 000002b902a3f480] coded y,uvDC,uvAC intra: 77.5% 89.5% 77.2% inter: 26.8% 48.1% 10.1%
[libx264 @ 000002b902a3f480] i16 v,h,dc,p: 50% 13% 13% 23%
[libx264 @ 000002b902a3f480] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 12% 17% 6% 8% 10% 7% 9% 7%
[libx264 @ 000002b902a3f480] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 13% 10% 7% 12% 11% 9% 9% 7%
[libx264 @ 000002b902a3f480] i8c dc,h,v,p: 51% 15% 24% 10%
[libx264 @ 000002b902a3f480] Weighted P-Frames: Y:5.2% UV:2.9%
[libx264 @ 000002b902a3f480] ref P L0: 60.1% 19.6% 15.8% 4.4% 0.1%
[libx264 @ 000002b902a3f480] ref B L0: 91.6% 7.3% 1.1%
[libx264 @ 000002b902a3f480] ref B L1: 97.2% 2.8%
[libx264 @ 000002b902a3f480] kb/s:2529.97 -
Why Matomo is a serious alternative to Google Analytics 360
12 décembre 2018, par Jake Thornton — Marketing