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Head down (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Autres articles (39)
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Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
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 (...) -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...)
Sur d’autres sites (4753)
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Issues with using FFmpeg to generate MPEG-DASH files
26 septembre 2022, par Tina JI am using the following
ffmpegcommand to generate MPEG DASH files and manifest. I usesingle_file 1to have a single file for each representation ; so no chunking. But IDK why when I want to play the manifest using ExoPlayer, the video doesn't play from the beginning (rather it starts from around 50s).

ffmpeg -re -i .\video-h264.mkv -map 0 -map 0 -c:a aac -c:v libx264 -b:v:0 800k -b:v:1 300k -s:v:1 320x170 -profile:v:1 baseline -profile:v:0 main -bf 1 -keyint_min 120 -g 120 -sc_threshold 0 -b_strategy 0 -ar:a:1 22050 -use_timeline 1 -single_file 1 -use_template 1 -window_size 5 -adaptation_sets "id=0,streams=v id=1,streams=a" -f dash out.mpd


What is wrong with this ? Is the manifest correct ? Here is the generated mpd :


<?xml version="1.0" encoding="utf-8"?>
<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT1M20.1S" maxsegmentduration="PT5.0S" minbuffertime="PT16.0S">
 <programinformation>
 </programinformation>
 <servicedescription>
 </servicedescription>
 <period start="PT48.0S">
 <adaptationset contenttype="video" startwithsap="1" segmentalignment="true" bitstreamswitching="true" framerate="30/1" maxwidth="960" maxheight="540" par="517072:290799" lang="eng">
 <representation mimetype="video/mp4" codecs="avc1.4d401f" bandwidth="800000" width="960" height="540" sar="32317:32311">
 <baseurl>out-stream0.mp4</baseurl>
 <segmentlist timescale="1000000" duration="5000000" startnumber="7">
 <initialization range="0-832"></initialization>
 <segmenturl mediarange="4800141-5599188" indexrange="4800141-4800192"></segmenturl>
 <segmenturl mediarange="5599189-6243069" indexrange="5599189-5599240"></segmenturl>
 <segmenturl mediarange="6243070-7224302" indexrange="6243070-6243121"></segmenturl>
 <segmenturl mediarange="7224303-8138118" indexrange="7224303-7224354"></segmenturl>
 <segmenturl mediarange="8138119-8232111" indexrange="8138119-8138170"></segmenturl>
 </segmentlist>
 </representation>
 <representation mimetype="video/mp4" codecs="avc1.42c00d" bandwidth="300000" width="320" height="170" sar="549389:581598">
 <baseurl>out-stream2.mp4</baseurl>
 <segmentlist timescale="1000000" duration="5000000" startnumber="7">
 <initialization range="0-832"></initialization>
 <segmenturl mediarange="1782920-2005667" indexrange="1782920-1782971"></segmenturl>
 <segmenturl mediarange="2005668-2229412" indexrange="2005668-2005719"></segmenturl>
 <segmenturl mediarange="2229413-2615209" indexrange="2229413-2229464"></segmenturl>
 <segmenturl mediarange="2615210-2975346" indexrange="2615210-2615261"></segmenturl>
 <segmenturl mediarange="2975347-2999288" indexrange="2975347-2975398"></segmenturl>
 </segmentlist>
 </representation>
 </adaptationset>
 <adaptationset contenttype="audio" startwithsap="1" segmentalignment="true" bitstreamswitching="true" lang="eng">
 <representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="69000" audiosamplingrate="44100">
 <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="1"></audiochannelconfiguration>
 <baseurl>out-stream1.mp4</baseurl>
 <segmentlist timescale="1000000" duration="5000000" startnumber="12">
 <initialization range="0-764"></initialization>
 <segmenturl mediarange="491493-536039" indexrange="491493-491544"></segmenturl>
 <segmenturl mediarange="536040-580657" indexrange="536040-536091"></segmenturl>
 <segmenturl mediarange="580658-625158" indexrange="580658-580709"></segmenturl>
 <segmenturl mediarange="625159-669825" indexrange="625159-625210"></segmenturl>
 <segmenturl mediarange="669826-713289" indexrange="669826-669877"></segmenturl>
 </segmentlist>
 </representation>
 <representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="69000" audiosamplingrate="22050">
 <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="1"></audiochannelconfiguration>
 <baseurl>out-stream3.mp4</baseurl>
 <segmentlist timescale="1000000" duration="5000000" startnumber="12">
 <initialization range="0-764"></initialization>
 <segmenturl mediarange="486188-530059" indexrange="486188-486239"></segmenturl>
 <segmenturl mediarange="530060-574175" indexrange="530060-530111"></segmenturl>
 <segmenturl mediarange="574176-618922" indexrange="574176-574227"></segmenturl>
 <segmenturl mediarange="618923-663118" indexrange="618923-618974"></segmenturl>
 <segmenturl mediarange="663119-706121" indexrange="663119-663170"></segmenturl>
 </segmentlist>
 </representation>
 </adaptationset>
 </period>
</mpd>


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how to create multiple period using ffmpeg, from two input videos to multi period on the DASH mpd
14 mai 2020, par SunnyI wonder how to create multi-periods from two input videos or more using ffmpeg. 
how do I make a command line for making a DASH mpd to have multiple periods. 
who does know the way to make the thing ?



==============
xml

 
 representation..
 
 
 representation..






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ffmpeg.wasm to transcode multi-bitrate HLS or DASH ?
24 mai 2021, par James Murrymy website allows users to upload videos but my servers cant handle the traffic and the budget is low. i heard about webassembly and i have been looking to see if i can transcode on client-side and then upload the hls files to my server.


I cannot find any documentation about hls on ffmpeg.wasm is it even possible.


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