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Modifier la date de publication
21 juin 2013, parComment changer la date de publication d’un média ?
Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
Dans la rubrique "Champs à ajouter, cocher "Date de publication "
Cliquer en bas de la page sur Enregistrer -
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 (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)
Sur d’autres sites (1713)
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HEVC with alpha [closed]
3 mai 2024, par foxhableI trying create HEVC with alpha video from png images through ffmpeg.


When i try, it outputs a video that works, has a transparent background and opens in QuickTime, but does not open in Safari. Then i try creating in prores 4444 codec and convert from macOS Context Menu -> Encode Selected Video Files with HEVC 1080p and Preserve Transparency. It has work - video with transparent background, open in QuickTime and in Safari.


So i tried understand what a difference in meta data and only what i find its working video has
HVEC
encoder, but not working hasLavc61.5.103 hevc_videotoolbox
. Can i somehow programmatically or from utilities like ffmpeg create video with HEVC With alpha, which working like from macOS context menu ? macOS context menu doesnt fit because i cant compress or create many videos

Detail info


I have example of working video. Info from ffprobe


ffprobe movie-hevc.mov
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\movie-hevc.mov':
 Metadata:
 major_brand : qt
 minor_version : 0
 compatible_brands: qt
 creation_time : 2021-01-02T10:33:38.000000Z
 Duration: 00:00:09.02, start: 0.000000, bitrate: 4053 kb/s
 Stream #0:0[0x1](und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], 4046 kb/s, 60 fps, 60 tbr, 600 tbn (default)
 Metadata:
 creation_time : 2021-01-02T10:33:38.000000Z
 handler_name : Core Media Video
 vendor_id : [0][0][0][0]
 encoder : HEVC



Info about video which i create in prores by ffmpeg command, then convert through macOS context menu


command :


ffmpeg -i a%d.png -r 30 -c:v prores_ks -profile:v 4 -allow_sw 1 -alpha_quality 1 -vtag hvc1 prores.mov



info after converting


ffprobe .\native-hevc.mov
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\native-hevc.mov':
 Metadata:
 major_brand : qt
 minor_version : 0
 compatible_brands: qt
 creation_time : 2024-05-03T07:04:26.000000Z
 Duration: 00:00:12.77, start: 0.000000, bitrate: 8796 kb/s
 Stream #0:0[0x1](und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 1920x1920, 8792 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 creation_time : 2024-05-03T07:04:27.000000Z
 handler_name : Core Media Video
 vendor_id : [0][0][0][0]
 encoder : HEVC



Info about video which i`m create direct in hevc by ffmpeg command


ffmpeg -i a%d.png -r 30 -c:v hevc_videotoolbox -allow_sw 1 -alpha_quality 1 -vtag hvc1 ffmpeg-hevc.mov



Info :


ffprobe .\ffmpeg-hevc.mov
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\ffmpeg-hevc.mov':
 Metadata:
 major_brand : qt
 minor_version : 512
 compatible_brands: qt
 encoder : Lavf61.3.103
 Duration: 00:00:12.77, start: 0.000000, bitrate: 3437 kb/s
 Stream #0:0[0x1]: Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bottom coded first (swapped)), 1920x1920, 3435 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : FFMP
 encoder : Lavc61.5.103 hevc_videotoolbox



also i tried :


- 

- props
-allow_sw 0
- get error -alpha-quality 0.75
,-pix_fmt bgra
- safari not open, QT yes, transparent bg- without
-vtag hvc1
- QuickTime cannot open - Tried convert from
webm
tohevc_videotoolbox
- safari not open, QT yes, transparent bg - tried convert
webm
into pngs and inhevc_videotoolbox
- safari not open, QT yes, transparent bg












Tried answers :




mac info :


- 

- macOS Monterey 12.7.2
- Mac mini (Late 2012)
- Core i5 3210M
- Graphics Intel HD 4000










- props
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Revision 32595 : avec le numero de version des plugins
1er novembre 2009, par fil@… — Logavec le numero de version des plugins
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Anomalie #1876 : Non prise en compte des guillemets dans le surlignage
14 juin 2011, par cedric -voir aussi #2025