[mythtv-users] Recording from HDMI

Jan Ceuleers jan.ceuleers at gmail.com
Wed Feb 22 16:34:50 UTC 2023

On 21/02/2023 16:51, Paul Harrison wrote:
> What sort of delay does this device introduce? For example if you change
> channel on the device you are recording how long of a delay is there
> before you see the change? I'm talking about when you use something like
> ffplay or vlc to view the raw output from the device not when used with
> MythTV.

A few weeks ago I was watching TV using a set-top box while also
watching the same channel (using MythTV's live TV functionality) on my
laptop. The time lag was below 2 seconds.

However there is still an artefact I'm trying to fix, which is that
audio is delayed by a few hundred milliseconds relative to video. I've
asked the ffmpeg mailing list for how to delay the audio track of an
incoming stream (as opposed to delaying the audio track of a video file).

HTH, Jan

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