Question about decoding

[archangel120]

I am a beginner of Jellyfin. I setup a Jellyfin server on my Synology NAS. And I plan to visit the server from Jellyfin client app of other device and play video. I wonder where is the video file been decoded? From NAS server or on client app device?
If I visite Jellyfin server from web instead of client app, then where is the video file been decoded?

[runzi]

if direct play is not available transcoding will take place on your NAS

[TheDreadPirate]

The client will always have to decode the video, period. However, depending on the client codec support, the server may also become involved.

Direct play = client fully supports the file as is, server simply sends the file
Direct stream = client supports video, but not audio. Server sends video unmodified, transcodes audio.
Transcode = client does not support video. Server transcodes video. Audio may or may not need to be transcoded.

[dottedborder]

Comme tu débutes, je te conseille de vérifier dans les paramètres de lecture de Jellyfin (ou dans le tableau de bord en temps réel) pour voir si tes vidéos passent en Direct Play ou si ton NAS est en train de transcoder. Ça t’aidera à comprendre où se fait le travail et à éviter de surcharger ton NAS.