
Recherche avancée
Médias (1)
-
The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (28)
-
La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...) -
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
Sur d’autres sites (3809)
-
ffmpeg : fast video split by encoding only missing keyframes and copying the rest
29 janvier 2023, par Eduardo PoçoI am splitting a video in many files, removing the silent periods. The script is ready to detect the voiced parts, split and concat.


At first, it thought copying the frames (-c copy) would be faster, but if a starting time of a part is not a keyframe, the video gets messed and some frames freeze until another keyframe appears. But reencoding each split file, although working, takes a long time.


So, I was wondering if it is possible to reencode only the moments whose frames lost its keyframe, while copying everything so on. Is there a ffmpeg option for suck a task, or is there a way to differentiate those frames and treat them differently when splitting the file ?


After reading some articles and documentation, that is how I understand what I am observing. Please, correct me if I misunderstood how ffmpeg works when splitting a file starting from a timestamp without a keyframe.


-
Is there an elegant way to split a file by chapter using ffmpeg ?
6 février 2017, par KatternIn this page, Albert Armea share a code to split videos by chapter using
ffmpeg
. The code is straight forward, but not quite good-looking.ffmpeg -i "$SOURCE.$EXT" 2>&1 | grep Chapter | sed -E "s/ *Chapter #([0-9]+.[0-9]+) : start ([0-9]+.[0-9]+), end ([0-9]+.[0-9]+)/-i \"$SOURCE.$EXT\" -vcodec copy -acodec copy -ss \2 -to \3 \"$SOURCE-\1.$EXT\"/" | xargs -n 11 ffmpeg
Is there an elegant way to do this job ?
-
FFmpeg split videos into smaller chunks of 15 second each with a stride of 10 seconds
15 octobre 2022, par a mau5I want to split a 1 hour video into chunks of 15 seconds each. But after every 15 seconds I want to skip 10 seconds. For eg :- I want a clip from first 0-15 seconds save it, then skip 10 seconds, the second clip should be from 25-40 th second from the original video. Does someone know how to implement this using FFmpeg ?


ffmpeg -I Vid.mp4 -f segment -segment_atclocktime 1 -segment_clocktime_offset 00:00:10 -segment_time 00:00:15 -reset_timestamps 1 output_%03d.asf


This command is not working as expected. I don't want to implement this in a for loop, but in a single pass