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Médias (1)
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DJ Dolores - Oslodum 2004 (includes (cc) sample of “Oslodum” by Gilberto Gil)
15 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
Autres articles (108)
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Librairies et logiciels spécifiques aux médias
10 décembre 2010, parPour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...) -
MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Taille des images et des logos définissables
9 février 2011, parDans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)
Sur d’autres sites (9894)
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RMS Normalize ffmpeg
23 juin 2016, par steveI’m new to ffmpeg and would like to create a script that can RMS normalize audio files to a specified RMS (mean) dB level. Can someone show how to do this ?
I’ve used dynaudnorm, but can’t get the desired output, I believe it’s due it using frames opposed to analyzing the full file.
To RMS normalize, my thought is to use a conditional statement to create a filter that can automatically read RMS (mean) level of an audio file and then automatically set the RMS (mean) level to a specified dB level.
Theoretical example :
ffmpeg -i (inputfilename) -af "normalize_rms=-20dB" (outputfilename)
Explanation of Conditional Statement and Example :
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Pass 1 : run astats or volumedetect to calculate RMS level.
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Pass 2 : If RMS level = X dB, then add Y dB level to match the user specified dB level.
Example : If RMS level = -30dB, and user specified RMS level = -20dB, then add 10dB.
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How to update/remove ffmpeg on Windows 10
9 janvier 2018, par C. WagnerI found a python script that had to use
ffmpeg
via cmd.exe thus I "installed" ffmpeg following these instructions. I downloaded the latest version ffmpeg 3.4.1 but would like to replace it with ver 2.4.x. (I think syntax from the .py file is for ver 2.4.x). I replaced the entire folder with files from the older version zip but when I inputffmpeg -version
it still shows version 3.4.I also tried removing path from environment variables,rebooting, and deleting entire ffmpeg folder to no avail. CMD.exe still displays ffmpeg as version 3.4 even when the entire folder is deleted. I was not able to find anything on ffmepg documentation or on google. I know its not exactly programming related but I thought I would get an answer here rather than in video production.
Snippet of the code
system("./ffmpeg -i xxx.ts -c copy -bsf:a aac_adtstoasc xxx.mp4")
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Using FFMPEG and LibAV
8 septembre 2014, par A2BI am trying to implement a software that can read from multiple video and audio sources. The software pipeline works like this : Read from devices -> perform some computations -> write the data. I initially thought of using ffmpeg libraries. At first I want to use libavdevice to read from all of the available devices. However I found it difficult to find proper documentation for the libav*** libraries in ffmpeg package. My questions :
- Is there a better suggestion than libav*** ? In future I also want to create video files from the captured data.
- Is there a suitable documentation for libav*** libraries ? I haven’t seen any on libavdevice over the google.
- Is there a way to have polling rather than waiting for frames to be captured ? example : a lot of time and threads will be wasted just to read from camera @ 15 FPS. Probably there is a way to poll the camera or mic ?
Thanks you all.