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Médias (1)
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Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (92)
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Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...) -
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 (...) -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;
Sur d’autres sites (13784)
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-vf unrecognized with php exec() function
29 septembre 2011, par RajatI am using php to create a video with fade effects. But exec() function gives following output :
array(19)
[0]=>
string(67) "FFmpeg version 0.6.1, Copyright (c) 2000-2010 the FFmpeg developers"[1]=>
string(74) " built on Dec 4 2010 15:35:31 with gcc 4.1.2 20080704 (Red Hat 4.1.2-48)"[2]=>
string(649) " configuration : —prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —mandir=/usr/share/man —incdir=/usr/include —disable-avisynth —extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector —param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' —enable-avfilter —enable-avfilter-lavf —enable-libdirac —enable-libfaac —enable-libfaad —enable-libfaadbin —enable-libgsm —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libx264 —enable-gpl —enable-nonfree —enable-postproc —enable-pthreads —enable-shared —enable-swscale —enable-vdpau —enable-version3 —enable-x11grab"[3]=>
string(35) " libavutil 50.15. 1 / 50.15. 1"[4]=>
string(35) " libavcodec 52.72. 2 / 52.72. 2"[5]=>
string(35) " libavformat 52.64. 2 / 52.64. 2"[6]=>
string(35) " libavdevice 52. 2. 0 / 52. 2. 0"[7]=>
string(35) " libavfilter 1.19. 0 / 1.19. 0"[8]=>
string(35) " libswscale 0.11. 0 / 0.11. 0"[9]=>
string(35) " libpostproc 51. 2. 0 / 51. 2. 0"[10]=>
string(122) "Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/usr/slideshow/frame1.mp4' :"[11]=>
string(11) " Metadata :"[12]=>
string(26) " major_brand : isom"[13]=>
string(25) " minor_version : 512"[14]=>
string(35) " compatible_brands : isomiso2mp41"[15]=>
string(33) " encoder : Lavf52.64.2"[16]=>
string(58) " Duration : 00:00:05.00, start : 0.000000, bitrate : 31 kb/s"[17]=>
string(107) " Stream #0.0(und) : Video : mpeg4, yuv420p, 320x240 [PAR 1:1 DAR 4:3], 29
kb/s, 1 fps, 1 tbr, 1 tbn, 1 tbc"[18]=>
string(24) "Unrecognized option 'vf'"
Why it is giving unrecognized option 'vf' while it works fine when run directly on server.My command is : "ffmpeg -i /usr/slideshow/frame1.mp4 -vf 'fade=out:0:5' /usr/slideshow/fade1.mp4"
I am executing it with exec() function. Why the error is coming and what should i use to apply filter to my input video. I am working on CentOS server.
Please guide me...
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What are the specifications of Flex usable FLV videos ?
26 septembre 2011, par RiduidelI have a server which streams FLV files to a Flex client.
In this flex client, the video timeline advances incoherently, and no video can be seen on screen (only the sound can be heard).My FLV file has been generated using ffmpeg, which says (about this generated file)
FFmpeg version 0.6, Copyright (c) 2000-2010 the FFmpeg developers
built on Aug 8 2010 04:24:04 with gcc 4.3.2
configuration: --prefix=/home/marpada/ffmpegfull --enable-gpl --enable-version3 --enable-nonfree --disable-ffplay --disable-ffserver --enable-libmp3lame --enable-libfaac --enable-libvpx --enable-libfaad --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxvid --enable-libx264 --enable-libtheora --extra-ldflags=-static --extra-libs='-lvorbis -logg -lxvidcore -lx264 -lopencore-amrnb -lopencore-amrwb -lfaad -lfaac -lvpx -ltheora -lm -lpthread' --enable-small --enable-runtime-cpudetect
libavutil 50.15. 1 / 50.15. 1
libavcodec 52.72. 2 / 52.72. 2
libavformat 52.64. 2 / 52.64. 2
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0.11. 0 / 0.11. 0
[flv @ 0x95c6aa0]Estimating duration from bitrate, this may be inaccurate
Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)
Input #0, flv, from '/appli/perigee_70ri/data/files/ged_bur%0/Imagettes/70ri/279/2/8/20_109021138o.70ri_FLV_preview_.flv':
Metadata:
hasMetadata : true
hasVideo : true
hasAudio : true
duration : 589
lasttimestamp : 589
lastkeyframetimestamp: 589
width : 352
height : 288
videodatarate : 199
framerate : 25
audiodatarate : 125
audiosamplerate : 44100
audiosamplesize : 16
stereo : true
filesize : 25058444
videosize : 15195503
audiosize : 9690850
datasize : 23027
metadatacreator : flvmeta 1.1-r202
audiocodecid : 2
videocodecid : 2
audiodelay : 0
canSeekToEnd : false
hasCuePoints : false
hasKeyframes : true
Duration: 00:09:48.78, start: 0.000000, bitrate: 332 kb/s
Stream #0.0: Video: flv, yuv420p, 352x288, 204 kb/s, 25 tbr, 1k tbn, 1k tbc
Stream #0.1: Audio: mp3, 44100 Hz, 2 channels, s16, 128 kb/s
At least one output file must be specifiedWhich, as far as it seems to me, is OK.
Furthermore, the video plays nice in VLC.
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ffmpeg reencoding of flv files from MAC
22 septembre 2011, par Nick MitinI've recorded a video from a webcam on mac and now i'm trying to reencode it, but ffmpeg does not recognize audio stream :
FFmpeg version git-120610e, Copyright (c) 2000-2010 the FFmpeg developers built on Sep 21 2010 15:56:57 with gcc 4.4.1 configuration : —enable-gpl —enable-version3 —enable-nonfree —enable-postproc —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libtheora —enable-libvorbis —enable-libmp3lame —enable-libx264 libavutil 50.27. 0 / 50.27. 0 libavcore 0. 9. 0 / 0. 9. 0 libavcodec 52.89. 0 / 52.89. 0 libavformat 52.78. 5 / 52.78. 5 libavdevice 52. 2. 2 / 52. 2. 2 libavfilter 1.39. 0 / 1.39. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 [flv @ 0x1e79470] Estimating duration from bitrate, this may be inaccurate Input #0, flv, from '10125174c09241f6536ccbe503ebbc00.flv' : Duration : 00:00:22.68, start : 0.000000, bitrate : N/A Stream #0.0 : Video : flv, yuv420p, 640x480, 1k tbr, 1k tbn, 1k tbc Stream #0.1 : Audio : [0][0][0][0] / 0x0000, 0 channels
Is it possible to make ffmpeg to support audio stream form flv recorded on MAC ?