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Autres articles (50)
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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 -
Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
Binaires complémentaires et facultatifs flvtool2 : (...) -
Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.
Sur d’autres sites (9076)
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Video trim get size before triming video
30 octobre 2015, par user3514786I want file size of video before trim. For example I have video length of five Mins and I am triming it to two Mins then how would i get size of video whose length is two mins before any trim process done
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What video rendering technology is used in this type of online video synthesis platform, like lightmv,chuanying520,aimeike,hunliji? [on hold]
15 octobre 2019, par 崇山峻岭What video rendering technology is used in this type of online video synthesis platform, like :
https://lightmv.cn/
https://www.chuanying520.com/
https://aimeike.tv/
https://www.hunliji.com/mv/
http://www.yingdashi.cn/marriage123 -
Cut AVI video via FFMPEG results in black screen video, but audio is OK
25 décembre 2017, par mipiI want to trim a AVI video (H264 codec) via ffmpeg. The time interval for the result is available as START_TIME_ORIG and DURATION_ORIG (both in microseconds). To make sure that the resulting video starts with an IDR frame, I determine START_TIME and DURATION via ffprobe by executing
ffprobe -show_frames -pretty -read_intervals [TIME_FROM%TIME_TO] input.avi
twice to get the IDR frames which are (1st call) closest to START_TIME_ORIG and (2nd call) closest to START_TIME_ORIG+DURATION_ORIG. TIME_FROM and TIME_TO is an interval of 5 seconds plus/minus around (1st call) START_TIME_ORIG and (2nd call) START_TIME_ORIG+DURATION_ORIG. To identify a frame as IDR frame I verify that key_frame=1 and pict_type=I. START_TIME is then set to pkt_dts_time of that frame. In a similar way I calculate DURATION.
Then ffmpeg is called :
ffmpeg -ss [START_TIME] -i input.avi -t [DURATION] -codec copy -reset_timestamps 1 -async 1 -map 0 -y output.avi
Unfortunately the resulting video has a black screen only, audio is OK. What is wrong with my approach ?
Thanks, mipi