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Autres articles (37)
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Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Ajouter notes et légendes aux images
7 février 2011, parPour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...) -
Le plugin : Podcasts.
14 juillet 2010, parLe problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
Types de fichiers supportés dans les flux
Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)
Sur d’autres sites (6365)
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More Imagick refresh
I’ve committed quite a few changes lately, mainly removing excessive macro usage and making the code more robust. Large amounts of the code was written about six years ago and a lot of things have changed since. Among other things, I’ve probably become a lot better in C.
Under the hood ImagickPixelIterator went through almost a full rewrite, a lot of the internal routines have been renamed and improved and I am happy to say that most of the (useless) macros have been removed.
Some of the user visible/interesting features added recently :
Countable
Imagick class now supports Countable interface and calling count on the object returns amount of images currently in memory. For example for PDF files this is usually the amount of pages. This is purely syntactic sugar as the functionality was available before using the getNumberImages method. The usage of the countable is pretty simple : 021-countable.phpt.
writeImageFile
After tracking down (what I thought was) a bug related to writeImageFile not honouring the format set with setImageFormat I was advised that the format actually depends on the filename. The filename is set during reading the image and just calling setImageFormat and writeImageFile would cause the original file format to be written in the handle.
There is now an additional parameter for writeImageFile for setting the format during the operation. The following test demonstrates the functionality and the issue : 022-writeimagefileformat.phpt.
Memory Management
One of the things that pops up now and then (especially from shared hosting providers) is whether Imagick supports PHP memory limits. Before today the answer was no and you needed to configure ImageMagick separately with reasonable limits.
In the latest master version there is a new compile time flag –enable-imagick-zend-mm, which adds Zend Memory Manager support. This means that Imagick will honour the PHP memory limits and will cause “Out of memory” error to be returned in case of overflow. The following test demonstrates the “usage” : 023-php-allocators.phpt.
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ffmpeg avformat_open_input function return err_code -1414093056, immediate exit requested
13 septembre 2023, par zywI'm making an upload software, when I unplug the device's camera and plug it in again, utilizing ffmpeg6.0, the first time I open the video screen in thread, avformat_open_input will report an error and return -1414093056, immediate exit requested, the second time I open it in thread it's normal and only In this case, it will report an error, I would like to ask what is the reason.


I broke the point in the source code and found that it is in avio.c uc->protocol_whitelist is null to report an error. It's a bit of a rush at work.


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GDPR Compliance Checklist : A Detailed Walkthrough
14 septembre 2023, par Erin — GDPR