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Médias (1)
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Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
Autres articles (65)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
MediaSPIP Player : les contrôles
26 mai 2010, parLes contrôles à la souris du lecteur
En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...) -
Emballe Médias : Mettre en ligne simplement des documents
29 octobre 2010, parLe plugin emballe médias a été développé principalement pour la distribution mediaSPIP mais est également utilisé dans d’autres projets proches comme géodiversité par exemple. Plugins nécessaires et compatibles
Pour fonctionner ce plugin nécessite que d’autres plugins soient installés : CFG Saisies SPIP Bonux Diogène swfupload jqueryui
D’autres plugins peuvent être utilisés en complément afin d’améliorer ses capacités : Ancres douces Légendes photo_infos spipmotion (...)
Sur d’autres sites (6067)
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How to Map 5 http live Stream into one Multicast [closed]
28 février 2020, par Muhammad Naeem-
Hi Every one, I want to map 5 hhtp live stream into one multicast
stream. source stream ; http://10.10.10.3:9981/stream/channelnumber/1
http://10.10.10.3:9981/stream/channelnumber/2
http://10.10.10.3:9981/stream/channelnumber/3
http://10.10.10.3:9981/stream/channelnumber/4
http://10.10.10.3:9981/stream/channelnumber/5Output Stream ; udp ://224.2.2.1:2001
Using Ffmpeg its possible ? OS Ubuntu 16.4 LTS
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FFplay only plays MPEG-DASH when in the same directory
26 mars 2020, par M. ParkerI’ve created a series of video segments using dashenc.c from ffmpeg’s libav on my windows machine. The mpd file is templated, so it’s fairly simple and it passes validation. The video plays, but only if I put ffplay in the same folder as all the files and use :
ffplay -i manifest.mpd
If I try to play from some other directory, or even the same directory using :
ffplay -i c:\tmp\manifest.mpd
or
ffplay -i c:/tmp/manifest.mpd
The attempt fails, producing this error :
[dash @ 0000016ce0d69900] Failed to open an initialization section in playlist 0
[dash @ 0000016ce0d69900] Error when loading first fragment, playlist 0
C:/tmp/manifest.mpd: Invalid argumentThe mpd file :
<?xml version="1.0" encoding="utf-8"?>
<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="dynamic" minimumupdateperiod="PT500S" suggestedpresentationdelay="PT4S" availabilitystarttime="2020-03-23T14:54:16Z" publishtime="2020-03-23T14:54:25Z" timeshiftbufferdepth="PT4811H53M52.3S" minbuffertime="PT9.6S">
<programinformation>
</programinformation>
<period start="PT0.0S">
<adaptationset contenttype="video" segmentalignment="true" bitstreamswitching="true">
<representation mimetype="video/mp4" codecs="avc1.42001e" bandwidth="5953124" width="720" height="480">
<segmenttemplate timescale="1000000" duration="5000000" availabilitytimeoffset="4.967" initialization="init-stream$RepresentationID$.m4s" media="media-stream$RepresentationID$-$Number%06d$.m4s" startnumber="1">
</segmenttemplate>
</representation>
</adaptationset>
</period>
</mpd>Adding in a BaseUrl element didn’t help ; my guess is I’m formatting it wrong. Any ideas what I might do to fix this ?
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MPEG Dash output generated by FFMPEG not working
8 janvier 2019, par Anto JoyI created a dash output sample_video.mpd file using ffmpeg, but when I tried to play it using dash js the video was just loading and nothing else.
Below is the generated mpd file<?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="PT1M2.3S" minbuffertime="PT20.0S">
<programinformation>
</programinformation>
<period start="PT0.0S">
<adaptationset contenttype="video" segmentalignment="true" bitstreamswitching="true" lang="und">
<representation mimetype="video/mp4" codecs="avc1.640015" bandwidth="255520" width="426" height="240" framerate="24/1">
<segmenttemplate timescale="12288" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="3">
<segmenttimeline>
<s t="198656" d="69120"></s>
<s d="75264"></s>
<s d="174592"></s>
<s d="122880"></s>
<s d="125440"></s>
</segmenttimeline>
</segmenttemplate>
</representation>
<representation mimetype="video/mp4" codecs="avc1.64001e" bandwidth="726596" width="854" height="480" framerate="24/1">
<segmenttemplate timescale="12288" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="3">
<segmenttimeline>
<s t="198656" d="69120"></s>
<s d="75264"></s>
<s d="174592"></s>
<s d="122880"></s>
<s d="125440"></s>
</segmenttimeline>
</segmenttemplate>
</representation>
<representation mimetype="video/mp4" codecs="avc1.64001f" bandwidth="1433314" width="1280" height="720" framerate="24/1">
<segmenttemplate timescale="12288" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="3">
<segmenttimeline>
<s t="198656" d="69120"></s>
<s d="75264"></s>
<s d="174592"></s>
<s d="122880"></s>
<s d="125440"></s>
</segmenttimeline>
</segmenttemplate>
</representation>
</adaptationset>
<adaptationset contenttype="audio" segmentalignment="true" bitstreamswitching="true" lang="und">
<representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="341000" audiosamplingrate="48000">
<audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="6"></audiochannelconfiguration>
<segmenttemplate timescale="48000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="3">
<segmenttimeline>
<s t="772096" d="270336"></s>
<s d="293888"></s>
<s d="681984"></s>
<s d="480256"></s>
<s d="492544"></s>
</segmenttimeline>
</segmenttemplate>
</representation>
<representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="341000" audiosamplingrate="48000">
<audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="6"></audiochannelconfiguration>
<segmenttemplate timescale="48000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="3">
<segmenttimeline>
<s t="772096" d="270336"></s>
<s d="293888"></s>
<s d="681984"></s>
<s d="480256"></s>
<s d="492544"></s>
</segmenttimeline>
</segmenttemplate>
</representation>
<representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="341000" audiosamplingrate="48000">
<audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="6"></audiochannelconfiguration>
<segmenttemplate timescale="48000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="3">
<segmenttimeline>
<s t="772096" d="270336"></s>
<s d="293888"></s>
<s d="681984"></s>
<s d="480256"></s>
<s d="492544"></s>
</segmenttimeline>
</segmenttemplate>
</representation>
</adaptationset>
</period>
</mpd>The following is the ffmpeg command that i used to generate multi bitrate video
ffmpeg -y -i sample_video.mp4 ^
-c:v libx264 -x264opts "keyint=24:min-keyint=24:no-scenecut" -r 24 ^
-c:a aac -b:a 128k ^
-bf 1 -b_strategy 0 -sc_threshold 0 -pix_fmt yuv420p ^
-map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0 ^
-b:v:0 250k -filter:v:0 "scale=-2:240" -profile:v:0 baseline ^
-b:v:1 750k -filter:v:1 "scale=-2:480" -profile:v:1 main ^
-b:v:2 1500k -filter:v:2 "scale=-2:720" -profile:v:2 high ^
sample_dash.mp4and to generate the mpd file
ffmpeg -y -re -i sample_dash.mp4 ^
-map 0 ^
-use_timeline 1 -use_template 1 -window_size 5 -adaptation_sets
"id=0,streams=v id=1,streams=a" ^
-f dash sample_video.mpdAlso I saw in the chrome network tab that only init-stream4.m4s and init-stream5.m4s was called.