Hemm good idea.. but, doesnt`it takes times to re encode the video?
Anyway, how can i know, the bit rate of the videos?
And how can i know, maximum bit rate that can be played by my device?
The time needed depends on the source file, the the settings used by the encoder and also the computer.
I'd recommend using the presets available in handbrake, if I am not mistaken there are presets for Android devices. Also, you can do a search on how to encode for Android devices with handbrake on Google, normally the guides would give you a rough number for the bit rate.
My suggestion is to try and encode a 5 minutes clip of the videos and try it at your tablet. Stick with the preset default settings. Best container format would be either mp4 or mkv.
Once you have find a comfortable settings, you can queue your other videos into handbrake as well.
Other options are using plex, but that'll cost money and I am not well versed with it.
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