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Autres articles (101)
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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
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 -
Soumettre bugs et patchs
10 avril 2011Un logiciel n’est malheureusement jamais parfait...
Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
Si vous pensez avoir résolu vous même le bug (...)
Sur d’autres sites (8243)
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PC Video Conferencing in the Year 1999
21 juin 2011, par Multimedia Mike — GeneralRemember Intel’s custom flavor of H.263 cleverly named I.263 ? I think I have finally found an application that used it thanks to a recent thrift shop raid— Intel Video Phone :
The root directory of the disc has 2 copies of an intro.avi video. One copy uses Intel Indeo 3 video and PCM audio. The other uses I.263 video and an undetermined (presumably Intel-proprietary) audio codec — RIFF id 0x0402 at a bitrate of 88 kbits/sec for stereo, 22 kHz audio. The latter video looks awful but is significantly smaller (like 4 MB vs. 25 MB).
This is the disc marked as "Send it to a friend...". Here’s the way this concept was supposed to operate :
- You buy an Intel Video Phone Camera Pack (forgotten page courtesy of the Internet Archive) which includes a camera and 2 CDs.
- You install the camera and video phone software on your computer.
- You send the other CD to the person whom you want to be able to see your face when you’re teleconferencing with them.
- The other party installs the software.
- The 2 of you may make an internet phone call presumably using commodity PC microphones for the voice component ; the person who doesn’t have a camera is able to see the person who does have a camera.
- In a cunning viral/network marketing strategy, Intel encourages the other party to buy the physical hardware as well so that they may broadcast their own visage back to the other person.
If you need further explanation, the intro lady does a great job :
I suspect I.263 was the video codec driving this since Indeo 3 would probably be inappropriate for real time video applications due to its vector quantizing algorithm.
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Using ffmpeg to encode a high quality video
7 janvier 2013, par CakeMasterI have a set of video frames saved as images in a directory, and I'm trying to encode these to a good quality video, however every setting and every format I try produces very noticeable artifacts.
The basic command is this :
ffmpeg -r 25 -i %4d.png myvideo.mpg
and I've tried the minrate and maxrate flags. Any of mpg, avi, mov, flv formats will do.
Any suggestions for settings ? Final file size is not an issue.
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transform all the images from the current directory to a video [migrated]
14 septembre 2011, par FihopZzI'd like to use ffmpeg to transform all images from the current directory to a video.
the image file name is not like, image1.jpg, image2.jpg.Thanks,