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Autres articles (48)
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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 -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
Création définitive du canal
12 mars 2010, parLorsque votre demande est validée, vous pouvez alors procéder à la création proprement dite du canal. Chaque canal est un site à part entière placé sous votre responsabilité. Les administrateurs de la plateforme n’y ont aucun accès.
A la validation, vous recevez un email vous invitant donc à créer votre canal.
Pour ce faire il vous suffit de vous rendre à son adresse, dans notre exemple "http://votre_sous_domaine.mediaspip.net".
A ce moment là un mot de passe vous est demandé, il vous suffit d’y (...)
Sur d’autres sites (4473)
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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,