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Les Miserables
9 décembre 2019, par
Mis à jour : Décembre 2019
Langue : français
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VideoHandle
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Mis à jour : Novembre 2019
Langue : français
Type : Video
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Somos millones 1
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Mis à jour : Juin 2015
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Pourquoi Obama lit il mes mails ?
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IMG 0222
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Mis à jour : Octobre 2013
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Type : Image
Autres articles (94)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
Amélioration de la version de base
13 septembre 2013Jolie 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 (...)
Sur d’autres sites (6598)
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can't compile ffmpeg on Solaris 10 sparc
9 juin 2014, par RaoulHas anyone compiled ffmpeg 0.6.1 for Solaris 10 sparc ? I’m getting the following errors :
uname -a
SunOS SERVERNAME 5.10 Generic_118833-36 sun4u sparc SUNW,Sun-Fire-V440
bwddmadm@bwddmliv>/export/home/USERID/ffmpeg-0.6.1/configure --prefix=/export/home/USERID/ffmpegX --extra-cflags="-fPIC" --disable-mmx --disable-protocol=udp --disable-encoder=nellymoser
Broken shell detected. Trying alternatives.
Trying shell bash
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
Unknown C compiler gcc
awk: syntax error near line 1
awk: illegal statement near line 1
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
install prefix /export/home/USERID/ffmpegX
source path /export/home/USERID/ffmpeg-0.6.1
C compiler gcc
.align is power-of-two no
ARCH sparc (generic)
big-endian no
runtime cpu detection no
VIS enabled yes
gprof enabled no
debug symbols yes
strip symbols yes
optimizations yes
static yes
shared no
postprocessing support no
new filter support no
filters using lavformat no
network support yes
threading support no
SDL support no
Sun medialib support no
AVISynth enabled no
libdc1394 support no
libdirac enabled no
libfaac enabled no
libfaad enabled no
libfaad dlopened no
libgsm enabled no
libmp3lame enabled no
libnut enabled no
libopencore-amrnb support no
libopencore-amrwb support no
libopenjpeg enabled no
librtmp enabled no
libschroedinger enabled no
libspeex enabled no
libtheora enabled no
libvorbis enabled no
libvpx enabled no
libx264 enabled no
libxvid enabled no
zlib enabled no
bzlib enabled no
Enabled decoders:
pr: -- empty file
Enabled encoders:
pr: -- empty file
Enabled hwaccels:
pr: -- empty file
Enabled parsers:
pr: -- empty file
Enabled demuxers:
pr: -- empty file
Enabled muxers:
pr: -- empty file
Enabled protocols:
pr: -- empty file
Enabled filters:
pr: -- empty file
Enabled bsfs:
pr: -- empty file
Enabled indevs:
pr: -- empty file
Enabled outdevs:
pr: -- empty file
License: LGPL version 2.1 or later
Creating config.mak and config.h...
bwddmadm@bwddmliv> gmake
/export/home/USERID/ffmpeg-0.6.1/version.sh: syntax error at line 4: `revision=$' unexpected
CC libavdevice/alldevices.o
libavdevice/alldevices.c: In function `avdevice_register_all':
libavdevice/alldevices.c:42: error: `CONFIG_ALSA_OUTDEV' undeclared (first use in this function)
libavdevice/alldevices.c:42: error: (Each undeclared identifier is reported only once
libavdevice/alldevices.c:42: error: for each function it appears in.)
libavdevice/alldevices.c:42: error: `CONFIG_ALSA_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:43: error: `CONFIG_AUDIO_BEOS_OUTDEV' undeclared (first use in this function)
libavdevice/alldevices.c:43: error: `CONFIG_AUDIO_BEOS_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:44: error: `CONFIG_BKTR_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:45: error: `CONFIG_DV1394_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:46: error: `CONFIG_JACK_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:47: error: `CONFIG_OSS_OUTDEV' undeclared (first use in this function)
libavdevice/alldevices.c:47: error: `CONFIG_OSS_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:48: error: `CONFIG_V4L2_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:49: error: `CONFIG_V4L_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:50: error: `CONFIG_VFWCAP_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:51: error: `CONFIG_X11_GRAB_DEVICE_INDEV' undeclared (first use in this function)
libavdevice/alldevices.c:54: error: `CONFIG_LIBDC1394_INDEV' undeclared (first use in this function)
gmake: *** [libavdevice/alldevices.o] Error 1
bwddmadm@bwddmliv> exit
script done on Fri Jan 14 11:34:05 2011 -
Superimposing two videos onto a static image ?
15 décembre 2014, par ArchagonI have two videos that I’d like to combine into a single video, in which both videos would sit on top of a static background image. (Think something like this.) My requirements are that the software I use is free, that it runs on OSX, and that I don’t have to re-encode my videos an excessive number of times. I’d also like to be able to perform this operation from the command line or via script, since I’ll be doing it a lot. (But this isn’t strictly necessary.)
I tried fiddling with ffmpeg for a couple of hours, but it just doesn’t seem very well suited for post-processing. I could potentially hack something together via the overlay feature, but so far I haven’t figured out how to do it, aside from pain-stakingly converting the image to a video (which takes 2x as long as the length of my videos !) and then superimposing the two videos onto it in another rendering step.
Any tips ? Thank you !
Update :
Thanks to LordNeckbeard’s help, I was able to achieve my desired result with a single ffmpeg call ! Unfortunately, encoding is quite slow, taking 6 seconds to encode 1 second of video. I believe this is caused by the background image. Any tips on speeding up encoding ? Here’s the ffmpeg log :
MacBook-Pro:Video archagon$ ffmpeg -loop 1 -i underlay.png -i test-slide-video-short.flv -i test-speaker-video-short.flv -filter_complex "[1:0]scale=400:-1[a];[2:0]scale=320:-1[b];[0:0][a]overlay=0:0[c];[c][b]overlay=0:0" -shortest -t 5 -an output.mp4
ffmpeg version 1.0 Copyright (c) 2000-2012 the FFmpeg developers
built on Nov 14 2012 16:18:58 with Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-libtheora --enable-libschroedinger --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libspeex --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --arch=x86_64 --enable-yasm --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
libavutil 51. 73.101 / 51. 73.101
libavcodec 54. 59.100 / 54. 59.100
libavformat 54. 29.104 / 54. 29.104
libavdevice 54. 2.101 / 54. 2.101
libavfilter 3. 17.100 / 3. 17.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, image2, from 'underlay.png':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, rgb24, 1024x768, 25 fps, 25 tbr, 25 tbn, 25 tbc
Input #1, flv, from 'test-slide-video-short.flv':
Metadata:
author :
copyright :
description :
keywords :
rating :
title :
presetname : Custom
videodevice : VGA2USB Pro V3U30343
videokeyframe_frequency: 5
canSeekToEnd : false
createdby : FMS 3.5
creationdate : Mon Aug 16 16:35:34 2010
encoder : Lavf54.29.104
Duration: 00:50:32.75, start: 0.000000, bitrate: 90 kb/s
Stream #1:0: Video: vp6f, yuv420p, 640x480, 153 kb/s, 8 tbr, 1k tbn, 1k tbc
Input #2, flv, from 'test-speaker-video-short.flv':
Metadata:
author :
copyright :
description :
keywords :
rating :
title :
presetname : Custom
videodevice : Microsoft DV Camera and VCR
videokeyframe_frequency: 5
audiodevice : Microsoft DV Camera and VCR
audiochannels : 1
audioinputvolume: 75
canSeekToEnd : false
createdby : FMS 3.5
creationdate : Mon Aug 16 16:35:34 2010
encoder : Lavf54.29.104
Duration: 00:50:38.05, start: 0.000000, bitrate: 238 kb/s
Stream #2:0: Video: vp6f, yuv420p, 320x240, 204 kb/s, 25 tbr, 1k tbn, 1k tbc
Stream #2:1: Audio: mp3, 22050 Hz, mono, s16, 32 kb/s
File 'output.mp4' already exists. Overwrite ? [y/N] y
using cpu capabilities: none!
[libx264 @ 0x7fa84c02f200] profile High, level 3.1
[libx264 @ 0x7fa84c02f200] 264 - core 119 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=3 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 'output.mp4':
Metadata:
encoder : Lavf54.29.104
Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1024x768, q=-1--1, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 (png) -> overlay:main
Stream #1:0 (vp6f) -> scale
Stream #2:0 (vp6f) -> scale
overlay -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
Update 2 :
It works ! One important tweak was to move the underlay.png input to the end of the input list. This increased performance substantially. Here’s my final ffmpeg call. (The maps at the end aren’t required for this particular arrangement, but I sometimes have a few extra audio inputs that I want to map to my output.)
ffmpeg
-i VideoOne.flv
-i VideoTwo.flv
-loop 1 -i Underlay.png
-filter_complex "[2:0] [0:0] overlay=20:main_h/2-overlay_h/2 [overlay];[overlay] [1:0] overlay=main_w-overlay_w-20:main_h/2-overlay_h/2 [output]"
-map [output]:v
-map 0:a
OutputVideo.m4v -
FFMPEG : Invalid Pixel Format String -1 when converting MP3 to SWF
22 janvier 2013, par James RileyI'm having an issue with FFMPEG - receiving an error when trying to convert an MP3 into an SWF. The full output contains :
$ ffmpeg -i track1.mp3 -y -ar '44100' -ab '96k' 'sample.swf'
FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers
configuration: --enable-libmp3lame --enable-libvorbis --enable-shared --disable-mmx
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 1 / 0.16. 1
libavcodec 52.108. 0 / 52.108. 0
libavformat 52.93. 0 / 52.93. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1.74. 0 / 1.74. 0
libswscale 0.12. 0 / 0.12. 0
Input #0, nsv, from 'track1.mp3':
Metadata:
encoder : Lavf52.93.0
artist : Test
title : Track02
album : Mixtape
disc : 1/1
genre : Acoustic
date : 2013
track : 2/2
album_artist : Test
Duration: 00:00:00.00, start: 0.000000, bitrate: -2147483 kb/s
Stream #0.0: Video: [216][195]2[138] / 0x8A32C3D8, 44318x50468, 24 fps, 24 tbr, 24 tbn, 24 tbc
Stream #0.1: Audio: h[228][146][142] / 0x8E92E468, 0 channels
[buffer @ 0x175cd00] Invalid pixel format string '-1'
Error opening filters!I'm aware the FFmpeg version here is old, but the issue is only occuring for one of the MP3s I am testing here. I have many others that are working just fine.
What can be causing this issue and what steps can I take to resolve this ?
From what I understand, the pixel format relates to the video output, yet in this case, the SWF is only to be used for audio. I've tested this on a newer version of FFmpeg and the issue isn't occuring - I certainly plan to upgrade FFmpeg on the test server I'm using, but would like to get to the bottom of why this is happening and try to get this particular MP3 converting, where its currently failing despite many others not having the same issue.
Thanks for any help !