Currently, rtl_tcp_source_c repeatedly calls ::connect until it
succeeds. This can result in 100% CPU utilization and/or a lot of
network traffic. In addition, GUI applications like Gqrx freeze up.
To solve these problems, I've changed the code to report an error
if ::connect fails.
Signed-off-by: Eric Wild <ewild@sysmocom.de>
The existing RTL TCP driver is quite different from its brother RTL_SDR.
It's much more complicated, uses gr::blocks::deinterleave and
gr::blocks::float_to_complex, and generally doesn't work correctly
(e.g. https://github.com/csete/gqrx/issues/99
Spectrum is mirrored when filter or demodulator changes (rtl_tcp) #99)
I've converted the RTL TCP driver to the model used by RTL_SDR,
simplifying it in the process, and fixing the GQRX issue.
Several tests have shown that this is the
highest sample rate where no samples
are being dropped on rtl devices.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
For use with the rtl_tcp utility acting as a spectrum server.
The "empty" rtl_tcp= device hint might be used to connect to rtl_tcp
running on local machine.
Krzysztof Halasa
