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Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...) -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
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 (...)
Sur d’autres sites (6564)
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How can I add audio (mp3) to a flv (just video) with ffmpeg ?
18 juillet 2012, par domiHow can I add sound from a mp3-file to a flv file that has no audio ?
(With ffmpeg)When I use
ffmpeg -i video.flv -i audio.mp3 -acodec copy -vcodec copy -ab 128k -ar 44100 output.flv
I get this output :
FFmpeg version SVN-r12758, Copyright (c) 2000-2008 Fabrice Bellard, et al. configuration : —enable-shared —prefix=/usr libavutil version : 49.6.0 libavcodec version : 51.54.0 libavformat version : 52.13.0 libavdevice version : 52.0.0 built on Apr 7 2008 09:00:42, gcc : 4.1.2 20070626 (Red Hat 4.1.2-14) [flv @ 0x2b72415e00c0]Could not find codec parameters (Audio : 0x0000) Input #0, flv, from 'video.flv' : Duration : 00:00:03.2, start : 0.000000, bitrate : N/A Stream #0.0 : Video : flv, yuv420p, 468x312, 1000.00 tb(r) Stream #0.1 : Audio : 0x0000 mdb:511, lastbuf:0 skipping granule 0 mdb:511, lastbuf:0 skipping granule 0 mdb:511, lastbuf:0 skipping granule 1 mdb:511, lastbuf:0 skipping granule 1 Input #1, mp3, from 'audio.mp3' : Duration : 00:01:00.9, start : 0.000000, bitrate : 128 kb/s Stream #1.0 : Audio : mp3, 44100 Hz, stereo, 128 kb/s Output #0, flv, to 'output.flv' : Stream #0.0 : Video : flv, yuv420p, 468x312, q=2-31, 1000.00 tb(c) Stream #0.1 : Audio : 0x0000 Stream mapping : Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 [flv @ 0x2b72415e00c0]sample rate not set Could not write header for output file #0 (incorrect codec parameters ?)
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Open .avi with OpenCV 2.4 & Ubuntu 11.04
25 juin 2012, par CTZStefI try to open and read video files in .avi format using OpenCV. Here is my code :
void MainWindow::on_actionOuvrir_fichier_triggered()
140 + {
141 + //mettre a -1 streamId
142 + streamId = -1;
143 + //ouvrir fenetre navigation fichiers pour recuperer path vers .avi
144 + QString fileName = QFileDialog::getOpenFileName(this,tr("Ouvrir fichier video"),"/home",
145 + tr("Videos (*.avi)"));
146 + std::string utf8_text = fileName.toUtf8().constData();
147 + //ouvrir .avi
148 + capture = new VideoCapture(utf8_text);
149 + //check ouverture
150 + if(!capture->isOpened())
151 + cout << "probleme ouverture fichier video" << endl;
152 + //calculer delay between each frame in ms
153 + rate = capture->get(CV_CAP_PROP_FPS);
154 + delay = 1000 / rate;
155 + //demarrer timer recordId
156 + recordId = startTimer(delay);
157 + //capture premiere frame
158 + if(!capture->read(in))
159 + cout << "probleme lecture frame fichier video" << endl;
160 + }I get no problem at compilation time, but I can't open a video file. While in debug mode I saw that string utf8_text had the good absolute path to my video, so obviously the problem comes from the constructor of the VideoCapture object. Then, I tried to install every codec pack I could or thought was relevant. But the problem is still there, capture->isOpened() still returns false, and in debug mode I can see that capture contains nothing.
I am lost here, don't know what to try next. Any idea ??
Thanks !!!
[EDIT]
Just in case, here is the output of ffmpeg -i myFile.avifaraday@faraday-Compaq-Evo-D510-e-pc:~/QtProjects/visionDev$ ffmpeg -i 1.avi
FFmpeg version 0.6.6-4:0.6.6-0ubuntu0.11.04.1, Copyright (c) 2000-2010 the Libav developers
built on Jun 12 2012 16:28:21 with gcc 4.5.2
configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
WARNING: library configuration mismatch
libavutil configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavcodec configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavformat configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavdevice configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavfilter configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libswscale configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libpostproc configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
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
libavfilter 1.19. 0 / 1.19. 0
libswscale 0.11. 0 / 0.11. 0
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, avi, from '1.avi':
Duration: 00:02:35.39, start: 0.000000, bitrate: 110595 kb/s
Stream #0.0: Video: rawvideo, bgr24, 640x480, 15 tbr, 15 tbn, 15 tbc
At least one output file must be specifiedI do not see anything wrong here, but I thought maybe someone will.
I really need this to work soon, and right now it's a dead end...
thanks
[EDIT 2]
I have just read this in the book OpenCV 2 Computer Vision Application Programming Cookbook by R. Laganiere :
It is important to note that in order to open the specified video
file, your computer must have the corresponding codec installed,
otherwise cv::VideoCapture will not be able to understand the input
file. Normally, if you are able to open your video file with a video
player on your machine (such as the Windows Media Player), then OpenCV
should also be able to read this file.Well, on my machine it is not that easy mister Laganiere... I hate this book.
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FFmpeg copying from udp to rtsp
28 décembre 2014, par ladi2000So I have a (live)video stream on udp ://10.5.5.100:8463 and I copy it to udp ://localhost:1000.
ffmpeg -f mpegts -i "udp://10.5.5.100:8554?fifo_size=10000" -f mpegts -vcodec copy udp://localhost:1000/go
And it works fine in VLC but Wirecast doesn’t accept udp ://..., but it accepts rtsp ://...
but I don’t now much about ffmpeg, so I only changed udp to rtsp
ffmpeg -f mpegts -i "udp://10.5.5.100:8554?fifo_size=10000" -f mpegts -vcodec copy rtsp://localhost:1000/go
But it doesn’t work and outputs this
rtsp://localhost:1000/go: Protocol not found
Thank you for answers !!