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Autres articles (29)
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La sauvegarde automatique de canaux SPIP
1er avril 2010, parDans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...) -
Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...) -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...)
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ClassX installation "codec not found" due to dependencies [migrated]
25 mars 2014, par khateebClassX is an interactive lecture streaming system developed in the Electrical Engineering Department at Stanford University.
Unlike conventional lecture capturing systems, ClassX requires very simple consumer-grade equipment and minimal human operation.I faced problems during installing it, I hope you have a solution.
BTW : I successfully installed it 2 years ago, but now I think the problem as the dependencies and Ubuntu versions are different than the versions we used two years ago.
Detailed description of the problem :
- I'm using Ubuntu 12.04
- I followed the instructions @ ClassX installation guide, and all steps till step 4 are successfully done (the encoder bin file generated).
- When trying to encode the video using the classX web system, it shows the encoding completed after few seconds.However, there are no tiles generated.
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I tried to execute the command at CX_log.txt, and the following error appears.
mahmoud@Mahmoud-HP-Pavilion-dv5-Notebook-PC : $ sudo perl /var/www/ClassXWebSystem/system/publishers/web/actions/encode.pl "/var/www/ClassXWebSystem/content/encoding/FALL_2013_2014/CS106A_FALL_2013_2014/lecSEven" "/var/www/ClassXWebSystem/content/encoding/FALL_2013_2014/CS106A_FALL_2013_2014/.encoding_1372706251" "/var/www/ClassXWebSystem/content/streaming/FALL_2013_2014/CS106A_FALL_2013_2014/lecSEven" "/var/www/ClassXWebSystem/system/publishers/bin" classx y n n
[sudo] password for mahmoud :
00068.jpg
..
.
00068.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/ClassXWebSystem/content/encoding/FALL_2013_2014/CS106A_FALL_2013_2014/.encoding_1372706251/00068.mp4' :
Metadata :
major_brand : isom
minor_version : 512
compatible_brands : isomiso2avc1mp41
encoder : Lavf52.39.0
Duration : 00:02:30.05, start : 0.000000, bitrate : 8141 kb/s
Stream #0.0(und) : Video : h264, yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 8007 kb/s, 29.95 fps, 29.97 tbr, 2997 tbn, 59.94 tbc
Stream #0.1(und) : Audio : aac, 44100 Hz, stereo, s16, 128 kb/s
Output #0, mp4, to '/var/www/ClassXWebSystem/content/encoding/FALL_2013_2014/CS106A_FALL_2013_2014/.encoding_1372706251/stream0.mp4' :
Stream #0.0 : Video : [0][0][0][0] / 0x0000, yuv420p, 640x360, q=32-36, 64 kb/s, 90k tbn, 14.99 tbc
codec not found
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ClassX installation "codec not found" due to dependencies [migrated]
25 mars 2014, par khateebClassX is an interactive lecture streaming system developed in the Electrical Engineering Department at Stanford University.
Unlike conventional lecture capturing systems, ClassX requires very simple consumer-grade equipment and minimal human operation.I faced problems during installing it, I hope you have a solution.
BTW : I successfully installed it 2 years ago, but now I think the problem as the dependencies and Ubuntu versions are different than the versions we used two years ago.
Detailed description of the problem :
- I’m using Ubuntu 12.04
- I followed the instructions @ ClassX installation guide, and all steps till step 4 are successfully done (the encoder bin file generated).
- When trying to encode the video using the classX web system, it shows the encoding completed after few seconds.However, there are no tiles generated.
-
I tried to execute the command at CX_log.txt, and the following error appears.
mahmoud@Mahmoud-HP-Pavilion-dv5-Notebook-PC : $ sudo perl /var/www/ClassXWebSystem/system/publishers/web/actions/encode.pl "/var/www/ClassXWebSystem/content/encoding/FALL_2013_2014/CS106A_FALL_2013_2014/lecSEven" "/var/www/ClassXWebSystem/content/encoding/FALL_2013_2014/CS106A_FALL_2013_2014/.encoding_1372706251" "/var/www/ClassXWebSystem/content/streaming/FALL_2013_2014/CS106A_FALL_2013_2014/lecSEven" "/var/www/ClassXWebSystem/system/publishers/bin" classx y n n
[sudo] password for mahmoud :
00068.jpg
..
.
00068.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’/var/www/ClassXWebSystem/content/encoding/FALL_2013_2014/CS106A_FALL_2013_2014/.encoding_1372706251/00068.mp4’ :
Metadata :
major_brand : isom
minor_version : 512
compatible_brands : isomiso2avc1mp41
encoder : Lavf52.39.0
Duration : 00:02:30.05, start : 0.000000, bitrate : 8141 kb/s
Stream #0.0(und) : Video : h264, yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 8007 kb/s, 29.95 fps, 29.97 tbr, 2997 tbn, 59.94 tbc
Stream #0.1(und) : Audio : aac, 44100 Hz, stereo, s16, 128 kb/s
Output #0, mp4, to ’/var/www/ClassXWebSystem/content/encoding/FALL_2013_2014/CS106A_FALL_2013_2014/.encoding_1372706251/stream0.mp4’ :
Stream #0.0 : Video : [0][0][0][0] / 0x0000, yuv420p, 640x360, q=32-36, 64 kb/s, 90k tbn, 14.99 tbc
codec not found
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Export dynamic metadata using x265
28 août 2018, par namI am working on ffmpeg and x265 for video encoding. From the release note of x265 :
HDR10+ supported. Dynamic metadata may be either supplied as a bitstream via the userSEI field of x265_picture, or as a json jile that can be parsed by x265 and inserted into the bitstream ; use —dhdr10-info to specify json file name, and —dhdr10-opt to enable optimization of inserting tone-map information only at IDR frames, or when the tone map information changes.
But I dont know how to export the dynamic metadata from a video sequence as a userSEI or json file. Hope to get solution from you.