Feature request: Time shift rec/play

[FredHucht]

Hi and thanks for this excellent software!

I have a feature request that I didn't find in the discussions, which might be quite easy to implement:

If SDR++ would save the whole baseband data into a ring buffer of the size of, say, the waterfall, one could implement "Time Shift rec/play": By clicking into the waterfall at a certain time in the past, the decoding and playback would happen at that time instead at the actual time. The playback time could be marked with a horizontal line. With such a feature, it would be easy to listen to short radio comms as in air radio. Furthermore, one could "see the future" and jump to signals in advance.

The memory requirements should be ~500MB/min at 2.048 MHz bandwidth, so several minutes should fit into memory.

What do you think?

Best, Fred