I am hoping this is appropriate channel for this query. Seemed to fit into the networking and other (VIDEO) context. I am an experienced HA user but have little experience playing with video streams from HA to other devices.
Use Case
Have a number of Reolink Cameras producing RTSP streams and connected to HA
Have a spare Raspberry Pi 4 with HDMI output
Have a "smart TV" with HDMI input
Need to be able under control of an automation/buttons scroll between the cameras and display the video on the attached TV via a HDMI link to the Raspberry Pi using the Pi as a video player.
Questions:
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Is it possible to set up a Pi as a video player controllable from HA where the action remote.select_source can define an RTSP stream (URL string) as the source. If so pointers to software would be appreciated.
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Is it possible to set up a Pi as a media player (video) using HA as controller where the camera output can be sent to the Pi and displayed on the TV. If so pointers would be appreciated.
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If an alternative approach can satisfy the use case (e.g. use a a firestick or equivalent) , advice would be appreciated
Thanks in advance