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Autres articles (73)
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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 (...) -
MediaSPIP en mode privé (Intranet)
17 septembre 2013, parÀ partir de la version 0.3, un canal de MediaSPIP peut devenir privé, bloqué à toute personne non identifiée grâce au plugin "Intranet/extranet".
Le plugin Intranet/extranet, lorsqu’il est activé, permet de bloquer l’accès au canal à tout visiteur non identifié, l’empêchant d’accéder au contenu en le redirigeant systématiquement vers le formulaire d’identification.
Ce système peut être particulièrement utile pour certaines utilisations comme : Atelier de travail avec des enfants dont le contenu ne doit pas (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.
Sur d’autres sites (9697)
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Anomalie #4438 : Manque Msg :message:lien_reponse_message :
22 mars 2020Ça m’interroge...
Les chaines de langues sont dans ’forum’, là : https://git.spip.net/spip/forum/src/branch/master/lang/forum_fr.php#L129
Donc appeler `_T(’message:lien_reponse_message’)` ne donnera rien, quelque soit la version de SPIP.
Cette chaine (forum:lien_reponse_message) est appelé si le message a un `id_parent`.La question semble plutôt :
- soit `#OBJET` qui vaut ’message’ est erroné (ça devait être autre chose (genre l’objet du parent), mais un bug remplit a rempli ’message’ ?
- soit on avait jamais eu ce cas simplement ? -
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. -
HLS With discontinuity stuck in buffer
25 mars 2021, par Vittorio MalandrinoWe are using JWPlayer 8.9.0 and we are trying to insert advertisements in our videos.
We are using
EXT-X-DISCONTINUITY
but apparently, when we get to the point of starting our advertising, the player stops showing a buffer status.


This is an example of our playlist :



#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-TARGETDURATION:16
#EXT-X-PLAYLIST-TYPE:VOD
#EXTINF:14.557178,
https://slave2.example.com/hls/output1/output_000.ts
#EXTINF:1.376467,
https://slave3.example.com/hls/output1/output_001.ts
#EXT-X-DISCONTINUITY
#EXTINF:8.050244,
https://slave2.example.com/hls/HLSad/output_000.ts
#EXTINF:4.880200,
https://slave2.example.com/hls/HLSad/output_001.ts
#EXTINF:7.090889,
https://slave2.example.com/hls/HLSad/output_002.ts
#EXTINF:5.881267,
https://slave2.example.com/hls/output1/output_002.ts
#EXTINF:5.672711,
https://slave3.example.com/hls/output1/output_003.ts
#EXT-X-DISCONTINUITY
#EXTINF:8.050244,
https://slave2.example.com/hls/HLSad/output_000.ts
#EXTINF:4.880200,
https://slave2.example.com/hls/HLSad/output_001.ts
#EXTINF:7.090889,
https://slave2.example.com/hls/HLSad/output_002.ts
#EXTINF:5.714422,
https://slave2.example.com/hls/output1/output_004.ts
#EXTINF:4.755067,
https://slave3.example.com/hls/output1/output_005.ts
[...]
#EXT-X-ENDLIST




This is what the JS console tells us :



[log] > audio sampling rate : 48000
9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > manifest codec:undefined,ADTS data:type:2,sampleingIndex:3[48000Hz],channelConfig:2
9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > parsed codec:mp4a.40.5,rate:48000,nb channel:2
9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > audio sampling rate : 48000
9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > AVC:59 ms overlapping between fragments detected
9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > Video/PTS/DTS adjusted: 15958/15933,delta:-59 ms




While the Chrome Media console says :



1.414 kPlay 
{}

17.280 kBufferingStateChanged 
{audio_buffering_state: {reason: "DEMUXER_UNDERFLOW", state: "BUFFERING_HAVE_NOTHING"}}

17.280 kBufferingStateChanged 
{,…}
pipeline_buffering_state: {for_suspended_start: false, reason: "DEMUXER_UNDERFLOW", state: "BUFFERING_HAVE_NOTHING"}
for_suspended_start: false
reason: "DEMUXER_UNDERFLOW"
state: "BUFFERING_HAVE_NOTHING"





Considering that the two videos that we are going to "merge" in the playlist have the same audio / video characteristics (codecs, bitrate, resolution etc.), why is this not working ?
Thank you