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Autres articles (57)
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Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (7257)
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aacenc : remove support for AAC LTP profile
8 février, par Lynneaacenc : remove support for AAC LTP profile
The LTP profile of AAC is... terrible.
It was an early 90's attempt at bridging the gap between speech
codecs and general purpose codecs. It did so by trying to exploit the fact
that most speech patterns are regular.Unfortunately, it went about it the same way as AAC Main, by taking
the previous frame's samples, modifying them through an LPC filter,
transforming them back using a forward MDCT, putting the output
coefficients back into the current frame, and using delta coding.
But once again, they ignored basic mathematics and MDCT leakage.
Thankfully, because AAC LTP is meant to operate at very low bitrates,
the extreme quantization results in most leakage being irrelevant.Unfortunately, the result is that the output sounds pretty much
terrible regardless of whether LTP is enabled or not.This was the first attempt at trying to couple speech coding into AAC.
No, the second attempt did not succeed either.
Nnnneither did the third. Or fourth.For the fifth one, they literally just jammed a speech codec into AAC
with USAC once they saw Opus do it.Just drop support for encoding AAC LTP. It was always experimental
to begin with. -
avcodec/cbs_vp9 : store profile in the private context
30 octobre 2018, par James Almer -
avcodec/libx265 - Add named option to set profile
5 décembre 2017, par Gyan Doshiavcodec/libx265 - Add named option to set profile
Adds call to x265_param_apply_profile after x265_param_parse.
Added as private option since HEVC profiles other than
Main, Main 10 and MSP in AVCodecContext are consolidated in a single
constant.Reviewed-by : Hendrik Leppkes <h.leppkes@gmail.com>
Reviewed-by : Derek Buitenhuis <derek.buitenhuis@gmail.com>
Reviewed-by : Lou Logan <lou@lrcd.com>