Seeking in transcoded stream on Chromecast

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Brian J. Murrell

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Mar 8, 2026, 6:25:48 PMMar 8
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I was so hoping that BubbleUPnP would be able to seek in streams on Chromecast using the CC's remote.  This is something that VLC is so horrible (by which I mean simply cannot do) at.

But when I play a stream to a Chromecast 4K (sabrina) (that invariably seems to need transcoding, ususally because of multi-channel audio -- in case that is relevant), I am unable to seek in that stream with the CC remote.  Well, to be most clear, I can seek and the play-back bar position advances as if I am supposed to be able to seek but when I stop seeking by no longer pressing buttons the remote, the play goes back to the beginning of the media, which of course makes this even worse than simply not being able/allowed to seek.  I lose all of the time I have spent already watching and have to way to even get back to where I was before trying to seek.

Is this expected behaviour?  Trying to decide before I fork out for the license if this use-case will actually work.

Cheers,
b.

Michael Pujos

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Mar 13, 2026, 7:05:59 AM (14 days ago) Mar 13
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Hi,

This is expected behavior: you can only seek properly using the app (Now Playing tab, seekbar).
The reason is technical: transcoded streams cannot technically be 'http seekable', that is seekable with usual http Range requests. 
This is the normal way to seek in http streams and what the Chromecast do when you use the remote.
To address this limitation and still make transcoded videos seekable, the app implements an alternate way to seek which is 
to play the video as a new video starting at the seek location (while making it look seamless in the Now Playing tab for the elapsed time and total duration displayed).
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