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Médias (1)
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Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (111)
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MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
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 (...) -
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)
Sur d’autres sites (10392)
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Detecting video volume
27 décembre 2016, par Johnathan KanarekI’m streaming few RTMP streams through nginx and I want to check every few seconds what stream has the highest volume.
Specifically these streams are of talking heads and I assume that usually only one of them is speaking at a time, and I’m trying to find which one.
Since nginx can output hls (Apple http live streaming) I decided to check every few seconds the last segment of each stream using ffmpeg.
Example :ffmpeg -f mp3 -i /my/path/camera67/123.ts -af "volumedetect" -f null /dev/null
For some reason the max_volume is always zero (max_volume : 0.0 dB) and mean_volume seems meaningless regarding the volume.
- Do you have any idea why it’s always zero ?
- Is there a helpful way to understand mean_volume ?
- Can you think of a different tool that may give me the volume (e.g. mediainfo or ffprobe) ?
I also tried :
ffmpeg -f lavfi -i amovie=/my/path/camera67/123.ts,volumedetect
This time I got :
[mpegts @ 0x130bf40] start time for stream 1 is not set in estimate_timings_from_pts
[mpegts @ 0x130bf40] Could not find codec parameters for stream 1 (Audio : aac ([15][0][0][0] / 0x000F), 0 channels, fltp) : unspecified sample rate
Consider increasing the value for the ’analyzeduration’ and ’probesize’ options
[Parsed_amovie_0 @ 0x130bcc0] No audio stream with index ’-1’ found
[lavfi @ 0x130abc0] Error initializing filter ’amovie’ with args ’/my/path/camera67/123.ts’
amovie=/my/path/camera67/123.ts,volumedetect : Invalid argumentAny idea ?
Thanks,
T. -
avformat/msf : fix codec 4 (joint stereo ATRAC3) and align
30 janvier 2017, par bnnmavformat/msf : fix codec 4 (joint stereo ATRAC3) and align
Codec 4 (frame size 98) uses joint stereo per spec and examples.
Also removed an incorrect "align" var which wasn’t used anyway (it was overwrittern).Probably all/only .AT3 of frame size 98 are JS, too.
Signed-off-by : bnnm <bananaman255@gmail.com>
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FFmpeg + getID3() : Detect audio's average level volume and change another audio's volume to match it
12 mars 2019, par lukistarI have two audio files.
First audio could be anything.
Second audio is always wav file, that contains sequence of silence(well I used adelay to create it)( 15 seconds) speech( 1 second) .. silence .. speech etc.
I am using amix to combine them, but I need to adjust second audio to match the volume level of the first audio for best results.
So first I need to detect the average volume level of the first audio and then change the volume level of the second.
Any idea how to do that using ffmpeg(or even easier for me using getID3) ? Thanks.