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Autres articles (48)
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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 (...) -
Monitoring de fermes de MediaSPIP (et de SPIP tant qu’à faire)
31 mai 2013, parLorsque l’on gère plusieurs (voir plusieurs dizaines) de MediaSPIP sur la même installation, il peut être très pratique d’obtenir d’un coup d’oeil certaines informations.
Cet article a pour but de documenter les scripts de monitoring Munin développés avec l’aide d’Infini.
Ces scripts sont installés automatiquement par le script d’installation automatique si une installation de munin est détectée.
Description des scripts
Trois scripts Munin ont été développés :
1. mediaspip_medias
Un script de (...) -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...)
Sur d’autres sites (7541)
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How can I encode RGB images into HDR10 videos in ffmpeg command-line ? [closed]
5 juin 2024, par F.X.How can I encode HDR10 videos from RGB images using the ffmpeg command-line, with the proper color and luminance metadata ?


There are a lot of ffmpeg command-line examples floating around when searching information about how to encode HDR10 streams properly, but I didn't find any that has a comprehensive list of all the parameters you can tune when using RGB frames as inputs.


For example :


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- This article has a lot of information, but uses an existing video as input.
- Similarly, this article uses an existing video as input






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aac : Validate the sbr sample rate before using the value
11 février 2017, par Luca Barbato -
Checkasm : assembly testing and benchmarking tool
11 juillet 2015, par Henrik GramnerCheckasm : assembly testing and benchmarking tool
It provides the following features :
* verify correctness by comparing output to the C version.
* detect failure to save and restore clobbered callee-saved registers.
* detect 32-bit parameters being used as if they were 64-bit in x86-64
(the upper halves are not guaranteed to be zero - but in practice
they very often are, which makes those bugs hard to spot otherwise).
* easy benchmarking.Compile by running ’make checkasm’.
Execute by running ’tests/checkasm/checkasm’.Optional arguments are ’—bench’ to run benchmarks for all functions,
’—bench=<pattern>’ to run benchmarks for all functions that starts with
<pattern>, and ’<integer>’ to seed the PRNG for reproducible results.Contains unit tests for most h264pred functions to get started, more tests
can be added afterwards using those as a reference.Loosely based on code from x264. Currently only supports x86 and x86-64,
but additional architectures shouldn’t be too much of an obstacle to add.Note that functions with floating point parameters or floating point
return values are not supported. Some compiler-specific features or
preprocessor hacks would likely be required to add support for that.Signed-off-by : Janne Grunau <janne-libav@jannau.net>