Creating incremental data files during a continuous operation

GNU Radio
1

Hi,

I just wonder if there is a method built in GNURadio that will allow me
to
create incremental files (1.dat, 2 dat …) instead of a huge file in
continuous operation.

I did implement a similar structure by taking the data in buffers and
creating files afterwards. However I would like to know if there are
other
ways of doing this (without dropping samples or stopping the graph).

Thanks in advance
Burak

2

Thanks Marcus for the information.
However, I did not understand at which point I should do that change.
Should I use gr_head so each file contains exact amount of samples? Is
there an example that I can refer to?

On Thu, Jun 20, 2013 at 3:17 PM, Marcus D. Leech [email protected]
wrote:

creating files afterwards. However I would like to know if there are other

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–
Burak TUYSUZ
Ph.D., Graduate Teaching Assistant
The Pennsylvania State University
Electrical Engineering
218 Electrical Engineering East Building
University Park, PA 16802

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3

On 06/20/2013 03:46 PM, Burak TUYSUZ wrote:

Thanks Marcus for the information.
However, I did not understand at which point I should do that change.
Should I use gr_head so each file contains exact amount of samples? Is
there an example that I can refer to?

There’s a set_file() method or some such on the file sink. Just call
that method any time you want to change the filename.

Now, if you’re doing this in GRC, it’s a bit trickier, because GRC isn’t
“procedural”. But for example, judicous use of a probe block
operating at a very low sample rate, and a helper function, could
allow you to change the filename at the rate of the probe
block.

–
Marcus L.
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

4

On 06/20/2013 03:15 PM, Burak TUYSUZ wrote:

Thanks in advance
Burak

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You can change the output filename of the file sink at runtime.