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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-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

  • Changer son thème graphique

    22 février 2011, par

    Le thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
    Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
    Modifier le thème graphique utilisé
    Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
    Il suffit ensuite de se rendre dans l’espace de configuration du (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (5866)

  • Audio alternative to FFmpeg - Core Audio IOS

    9 juin 2021, par cs guy

    I have been using FFmpeg Android for a music app I'm working on. I built a custom audio engine from stratch with C++ and FFmpeg and it works amazing and it fulfilled all my needs. However, Due to FFmpeg being Lgpl lisence, it seems to me after some researching it is not possible to use a lgpl lisence due to app stores policy. Im not a lawyer or have the money to hire a lawyer for a commercial advise. So I am thinking to replace ffmpeg with another audio decoder, processor library. I am planning to feed the custom decoded data to audio devices through Apples core audio library.

    


    Here are my needs :

    


      

    • Need to decode ogg files

      • 


    • Need to encode pcm data as aac file

      • 


    • Need to add post process FX to decoded data such as low pass filter etc

      • 


    


    So what I am asking for is an answer to one of the following :

    


      

    • Could FFmpeg really not be used in app store due to lgpl static linking issues ? (I looked at the most famous apps that use FFmpeg on Android, all of them does not use FFmpeg on IOS)

      • 


    • If I were to use another library for FFmpeg what is the best alternative to work with ? Did anyone actually had experienced the same situation that I am in ?

      • 


    


    I also tried using AudioKit but it has a critical problem that does not meet with my requirement so I dropped it.

    


    I am looking for advice here. Thanks !

    


  • ExoPlayer and deinterlacing feature

    21 février 2021, par Suppaman

    I want to use ExoPlayer to show interlaced video but, especially for SD content, the video looks really bad without any deinterlacing feature. Looking in the ExoPlayer project it seem the player doesn't have such deinterlacing feature and doesn't seem in plan to be added. I'm thinking to try add deinterlacing by using the deinterlacing engine of ffmpeg library. However it don't seem and easy task. I found some projects that could help me like this ExoPlayerFilter that apply a filter on the frame before show. This could be a possible way to "deinterlace" the frame before show. Another possible suggestion comes from the tread in github Exoplayer project here. This could be another possible way to proceed. My problem is that I have a limited time to try add this feature and I would to know from people having more experience than me what would be most "suggested" way to follow or if someone know another better way to reach my results.

    


    Thank you

    


  • Get rtsp udp streaming with ffmpeg utility failed

    16 février 2021, par Lidor Abo

    Hey there,
I have a problem with get streaming from wowza stream engine as described below :
I try to get streaming in private network from wowza stream engine in UDP with ffmpeg as following :
ffmpeg -loglevel debug -rtsp_transport udp -i "rtsp ://192.168.8.117:1935/live/ecad838c-b431-4c8b-b2e8-d43f78a8d2f2.stream" -acodec copy -vcodec copy test.mp4
and i get the following error :
rtsp ://192.168.8.117:1935/live/ecad838c-b431-4c8b-b2e8-d43f78a8d2f2.stream : Connection timed out
Few remarks about that :

    


      

    1. When i try to get streaming using public ip with ffmpeg utility i success in UDP and TCP

      2. 


    2. I success to get streaming with private IP with TCP connection through ffmpeg utility as following :
ffmpeg -loglevel debug -rtsp_transport tcp -i "rtsp ://192.168.8.117:1935/live/ecad838c-b431-4c8b-b2e8-d43f78a8d2f2.stream" -acodec copy -vcodec copy test.mp4

      3. 


    3. I open 1935 UDP and TCP ports in security group of wowza stream engine for machines that will need to get streaming from wowza stream engine. Also, i opened UDP in 6970-9999 range for any ip address.

      4. 


    4. I added relevant IP address in Whitelist property in Server.xml conf in wowza stream engine.

      5. 


    5. I using vpn service (perimeter) to access the machine that from it i get streaming from wowza streaming engine.

      6. 


    6. iptables in machine that i try to get stream allow any rule and not enabled any firewall.
Note : i adding link to zip file with logs and config files because is not me your upload limitations :

      7. 


    


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