
Recherche avancée
Autres articles (57)
-
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 -
Les vidéos
21 avril 2011, parComme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...) -
Utilisation et configuration du script
19 janvier 2011, parInformations spécifiques à la distribution Debian
Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
Depuis la version 0.3.1 du script, le dépôt peut être automatiquement activé à la suite d’une question.
Récupération du script
Le script d’installation peut être récupéré de deux manières différentes.
Via svn en utilisant la commande pour récupérer le code source à jour :
svn co (...)
Sur d’autres sites (6984)
-
Combine audio with ffmpeg breaks video
21 décembre 2015, par Harry WalterI’m attempting to combine and audio file (mp3) with a video created with ffmpeg. The video is created from several smaller clips using :
ffmpeg -y -f concat -auto_convert 1 -i videos.txt -c copy -an -sn video.mp4
videos.txt contains a list of videos to combine. This video is created correctly and plays fine. Next I am trying to add an audio track to the video. I’ve checked and the audio file plays correctly however when I add it using the command below the mp4 produced is corrupt and no longer valid for playback :
ffmpeg -y -i video.mp4 audio.aac final.mp4
Any ideas, I’m new to using ffmpeg and not sure what half the output means and what is relevant but I don’t see anything that looks like errors.
-
ffmpeg sometimes only creating one segment for the entire HLS playlist regardless which -hls_time i use [closed]
10 mai 2023, par kusti420can someone explain why it works as it should with certain FLACs and with other ones it only creates one m4s segment and how to fix it where it would actually create one segment every 6 seconds for any flac, as it should with "-hls_time 6".


ffmpeg -i .\audio4.flac -c:a flac -vf pad="width=ceil(iw/2)*2:height=ceil(ih/2)*2" -ar 96000 -f hls -hls_time 6 -hls_playlist_type vod -strict -2 -hls_segment_type fmp4 -hls_segment_filename "idk%d.m4s" playlist.m3u8


when it doesnt work then logs print out like over thousand lines of :

[hls @ 0000026653933a00] Delay between the first packet and last packet in the muxing queue is 10069334 > 10000000: forcing output


i tried different versions of ffmpeg, running it on different devices and on different operating systems
was obviously expecting it to work the same for all flacs, but more than half the time it just isnt working as it should


-
Revision 07443f1589 : Refinements on modelcoef expt to reduce storage Uses more aggrerssive interpola
20 mai 2013, par Deb MukherjeeChanged Paths :
Modify /vp9/common/vp9_entropy.c
Modify /vp9/common/vp9_entropy.h
Refinements on modelcoef expt to reduce storageUses more aggrerssive interpolation to reduce storage for the
model tables by almost more than half. Only 48 lists of probs are
stored (as opposed to 128 before), corresponding to ONE_NODE
probabilities of :
1,
3, 7, 11, ..., 115, 119,
127, 135, ..., 247, 255.Besides, only 1 table is used as opposed to 2 before. So the overall
memory needed for the tables is just 48 * 8 = 384 bytes.The table currently used is based on a new Pareto distribution with
heavier tail than a generalized Gaussian - which improves results on
derf by about 0.1% over a single table Generaized Gaussian.Results overall on derfraw300 is -0.14%.
Change-Id : I19bd03559cbf5894a9f8594b8023dcc3e546f6bd