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Autres articles (36)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...) -
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 (6447)
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Parsing custom track data from ARCore mp4 recordings
11 juillet 2022, par George EllicksonI'm using the Android ARCore Recording API to record custom data per frame and replay those values in tests to instrument test our ARCore functionality on devices and in CI. However, separately I'd also like to parse the generated mp4 recordings myself, outside of ARCore, and use my per frame recorded data for analysis. In my ARCore app, I'd like to simply be able to add custom text data like following, encoded as utf-8 strings (or really any other simple encoding) for the given ARCore frame :


val data = "Hello world!"
val buffer = ByteBuffer.wrap(data.encodeToByteArray())
frame.recordTrackData(TRACK_UUID_MY_DATA, buffer



I can't find any docs or good examples though of parsing the mp4 from ARCore and no luck in their arcore-android-sdk repo either. I've tried ffmpeg / ffprobe to figure out how the data is bundled into the MP4, but I'm stumped on which track to use and how best to deserialize as I'm unsure how the bytes are actually encoded under the hood.


Using ffmpeg, I just get information like this about the tracks :


Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'HoverCapture/ar-recording-tests/src/androidTest/res/raw/ar_recording_2_photos.mp4':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: isommp42
 creation_time : 2022-01-20T22:03:13.000000Z
 Duration: 00:00:17.12, start: 0.000000, bitrate: 26865 kb/s
 Stream #0:0[0x1](und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown, progressive), 1920x1080, 25615 kb/s, 28.08 fps, 29.58 tbr, 90k tbn (default)
 Metadata:
 creation_time : 2022-01-20T22:03:13.000000Z
 handler_name : ISO Media file produced by Google Inc. Created on: 01/20/2022.
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](und): Data: none (mett / 0x7474656D), 18 kb/s (default)
 Metadata:
 creation_time : 2022-01-20T22:03:13.000000Z
 handler_name : ISO Media file produced by Google Inc. Created on: 01/20/2022.
 Stream #0:2[0x3](und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown, progressive), 640x480, 1929 kb/s, 28.12 fps, 29.42 tbr, 90k tbn (default)
 Metadata:
 creation_time : 2022-01-20T22:03:13.000000Z
 handler_name : ISO Media file produced by Google Inc. Created on: 01/20/2022.
 vendor_id : [0][0][0][0]
 Stream #0:3[0x4](und): Data: none (mett / 0x7474656D), 18 kb/s (default)
 Metadata:
 creation_time : 2022-01-20T22:03:13.000000Z
 handler_name : ISO Media file produced by Google Inc. Created on: 01/20/2022.
 Stream #0:4[0x5](und): Data: none (mett / 0x7474656D), 54 kb/s (default)
 Metadata:
 creation_time : 2022-01-20T22:03:13.000000Z
 handler_name : ISO Media file produced by Google Inc. Created on: 01/20/2022.
 Stream #0:5[0x6](und): Data: none (mett / 0x7474656D), 54 kb/s (default)
 Metadata:
 creation_time : 2022-01-20T22:03:13.000000Z
 handler_name : ISO Media file produced by Google Inc. Created on: 01/20/2022.
 Stream #0:6[0x7](und): Data: none (mett / 0x7474656D), 0 kb/s (default)
 Metadata:
 creation_time : 2022-01-20T22:03:13.000000Z
 handler_name : ISO Media file produced by Google Inc. Created on: 01/20/2022.
 Stream #0:7[0x8](und): Data: none (mett / 0x7474656D), 6 kb/s (default)
 Metadata:
 creation_time : 2022-01-20T22:03:13.000000Z
 handler_name : ISO Media file produced by Google Inc. Created on: 01/20/2022.



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How to make video from images in android ? [on hold]
1er août 2014, par harsh3898294Please tell me how can i do ?
i want to make mpeg4 or mp4 video from set of images and add audio.
also added animation between two images.i want to make app like
https://play.google.com/store/apps/details?id=com.movisoft.photostory -
Encrypted video cannot play [closed]
15 août 2021, par rin yeThis is a video clip downloaded from a software, but I don't know what encryption method is used for this video. Does anyone know what encryption method is used ?https://drive.google.com/file/d/15ZypIca-ljzF-Oh_9jBMXPFUuXbOr16P/view?usp=sharing