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Médias (1)
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1 000 000 (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
Autres articles (65)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
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 (...)
Sur d’autres sites (9435)
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FFMPEG multi bitrate wowza live streaming keyframe alignment
27 septembre 2013, par Michael DietriechI tried live streaming with ffmpeg to wowza but even though i use -r 25 -g 50 -keyint_min 50 -sc_threshold 0, the keyframes don't seem to be aligned at the same place of the stream for all the outputs so when Wowza makes chunks for HLS out of it, the keyframes don't get alligned at the beginning of each chunk.
Any suggestions ?
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ffmpeg Live Input MP4 Error [migrated]
3 mars 2013, par BrianjsCurrently I have a mic and a webcam connected to my computer. I am running ffmpeg on CentOS 6.3.
When I try to record a video without audio by :
ffmpeg -y -f video4linux2 -t 15 -s 640x480 -r 25 -i /dev/video0 /home/irdb/Desktop/out2.mp4
it runs perfectly and I get a nice video. However when I try to run with audio included by :
ffmpeg -y -f video4linux2 -t 15 -s 640x480 -r 25 -i /dev/video0 -f alsa -ar 22050 -ab 64k -ac 2 -i default /home/irdb/Desktop/out2.mp4
It errors out and prints :
[NULL @ 0x1e33fc0] Codec is experimental but experimental codecs are not enabled, see -strict -2
Output #0, mp4, to '/home/irdb/Desktop/out2.mp4':
Stream #0:0: Video: h264, yuv420p, 640x480, q=-1--1, 90k tbn, 25 tbc
Stream #0:1: Audio: none, 22050 Hz, 2 channels, flt, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> libx264)
Stream #1:0 -> #0:1 (pcm_s16le -> aac)
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or heightI assume this has to do with the first error as when I use something like mpg it works just fine. However I plan on streaming this live and want mp4 format as that is pretty much supported by all browsers (Firefox with flash fallback).
Does anyone know how to get the audio to work without additional processing (as I want to stream live and not write to a file eventually).
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HTTP Live Streaming Mac app
4 mars 2013, par Diederik HoogenboomI am developing a Mac app which needs to provide a HTTP Live Stream (just the last 2 seconds or so) for the main screen (Desktop).
I was thinking of the following process :
- Create a AVCaptureSession with a AVCaptureScreenInput as input (sessionPreset = AVCaptureSessionPresetPhoto)
- Add a AVCaptureVideoDataOutput output to the session
- Capture the frames (in kCVPixelFormatType_32BGRA format) in captureOutput:didDropSampleBuffer:fromConnection : and write these to a ffmpeg process for segmenting (using a pipe or something) that creates the MPEG-TS and playlist files.
- Use an embedded HTTP server to server up the segmented files and playlist file.
Is this the best approach and is there is no way to circumvent the ffmpeg part for encoding and segmenting the video stream ?
What is the best way to pipe the raw frames to ffmpeg ?