Recherche avancée

Médias (91)

Autres articles (92)

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • Dépôt de média et thèmes par FTP

    31 mai 2013, par

    L’outil MédiaSPIP traite aussi les média transférés par la voie FTP. Si vous préférez déposer par cette voie, récupérez les identifiants d’accès vers votre site MédiaSPIP et utilisez votre client FTP favori.
    Vous trouverez dès le départ les dossiers suivants dans votre espace FTP : config/ : dossier de configuration du site IMG/ : dossier des média déjà traités et en ligne sur le site local/ : répertoire cache du site web themes/ : les thèmes ou les feuilles de style personnalisées tmp/ : dossier de travail (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

Sur d’autres sites (12913)

  • How to split and scale streams in ffmpeg with cuda ?

    30 décembre 2020, par Samyak

    So, I want to create streams of multiple resolutions for hls streaming. Here's what I've tried so far :

    


    ffmpeg -vsync 0 -hwaccel cuvid -i input.mkv -c:a aac -c:v h264_nvenc \
-c:s webvtt -crf 20 -filter_complex \
'[v:0]hwupload_cuda,split=2[vtemp001][vout002]:[vtemp001]hwupload_cuda,scale_npp=w=960:h=540:format=yuv420p:interp_algo=lanczos,hwdownload,format=yuv420p[vout001]'  \
-map "[vout001]" -b:v:0 2000k -map "[vout002]" \
-b:v:1 6000k -map 0:v -map 0:a -map 0:s -map 0:v \ 
-map 0:a -map 0:s -var_stream_map 'v:0,a:0,s:0 v:1,a:1,s:1' \ 
-force_key_frames:v "expr:gte(t,n_forced*2.000)" -hls_time 6 -hls_playlist_type event -hls_flags \
delete_segments+independent_segments+discont_start+program_date_time \
-master_pl_name master.m3u8 -hls_segment_filename \
fire/segment_%v/file%06d.ts fire/stream_%v.m3u8


    


    Running this, I am getting the following error :

    


    Impossible to convert between the formats supported by the filter 
'graph 0 input from stream 0:0' and the filter 'auto_scaler_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0


    


    When I do the same thing without gpu, I am getting an out of memory error which to me sounds like I can't do this without a gpu (i.e I have to run separate ffmpeg commands to get this to run on the CPU). Would love to know if anyone has any insights or suggestions.

    


    I tried something more easy to understand here :

    


    ffmpeg -vsync 0 -hwaccel cuvid -i input.mkv -c:v h264_nvenc -filter_complex \
'[v:0]hwupload_cuda,split=2[vtemp001][vout002];[vtemp001]hwupload_cuda,scale_npp=w=960:h=540:format=yuv420p:interp_algo=lanczos,hwdownload,format=yuv420p[vout001]' \
-map "[vout001]" -b:v:0 2000k output1.mkv -map "[vout002]" -b:v:1 6000k output2.mkv


    


    The above gives the same error which to me suggests that the issue is with the filter complex.

    


  • YouTube Live iOS

    20 janvier 2016, par David McSpadden

    I have a YouTube live streaming currently set up here :
    https://www.youtube.com/watch?v=pOeMoXdU6jI

    Everything works great - except iOS devices intermittently fail to play the stream. Looking through the device logs and raw m3u8 files I notice that one .TS segment length is > 10, which is where the file fails to play throwing an error that the EXTINF is greater than double the expected length.

    If I turn off the "DVR" function in the YouTube Live Control Panel everything works perfectly since the single .TS file (sometimes 4 hours ago) is no longer present in the m3u8 file.

    I’m streaming to YouTube via ffmpeg and have other camera angles that seem to fail less frequently (but they do fail).

    Has anyone else experienced this ? It seems like a bug on the YouTube side - but they haven’t been any help.

  • Cannot display ffprobe information from youtube properly

    31 janvier, par Krishnaap

    I am trying to grab information from youtube streams using ffprobe and python. I could display offline video information properly on python, cannot do the same from youtube live streams.

    


    
os.system("ffprobe -hide_banner -stats -v quiet -pretty -show_entries format=size,duration:stream=filename,index,codec_type,codec_name,profile,bit_rate,width,height -of compact -i https://www.youtube.com/watch?v=QzsfLSP6hkI")


    


    showing an error

    


    


    Argument 'https://www.youtube.com/watch?v=QzsfLSP6hkI' ; provided as input filename, but 'quiet' was already specified.

    


    


Navigation