Re: [Discuss-gnuradio] GNURadio Companion File Sink
Im just trying to do a data capture with my USRP. I would like the data in complex format. What should the length be set to? Josh Blum wrote: Essentially, the gr_file_sink has one parameter, the size of the data stream in bytes. GRC splits this up into two parameters, the data type (complex, float, int...) and the vector length. The size of the data stream = number of bytes in the data type times the vector length. Unless the data stream is an array of complex, float, int, short, or byte, the vector length should be 1. -Josh isaacgerg wrote: What does the vector length option mean? It is set to 1 by default. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio -- View this message in context: http://www.nabble.com/GNURadio-Companion-File-Sink-tp17541624p17562873.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] GNURadio Companion File Sink
gr.sizeof_gr_complex - George isaacgerg wrote: Im just trying to do a data capture with my USRP. I would like the data in complex format. What should the length be set to? Josh Blum wrote: Essentially, the gr_file_sink has one parameter, the size of the data stream in bytes. GRC splits this up into two parameters, the data type (complex, float, int...) and the vector length. The size of the data stream = number of bytes in the data type times the vector length. Unless the data stream is an array of complex, float, int, short, or byte, the vector length should be 1. -Josh isaacgerg wrote: What does the vector length option mean? It is set to 1 by default. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] GNURadio Companion File Sink
Im not down in the code, Im just trying to use the application. What does that number translate to? Also, once I get the data, how is it formated? as 2 float32 values, one for the real arm and one for the imaginary part? -- View this message in context: http://www.nabble.com/GNURadio-Companion-File-Sink-tp17541624p17563384.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] GNURadio Companion File Sink
isaacgerg wrote: Im not down in the code, Im just trying to use the application. What does that number translate to? Set the type to complex and leave the vector length as 1. Also, once I get the data, how is it formated? as 2 float32 values, one for the real arm and one for the imaginary part? yes, each sample will be written as 2 binary 4 byte floats, i believe that real part is 1st ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] GNURadio Companion File Sink
Josh Blum wrote: isaacgerg wrote: Im not down in the code, Im just trying to use the application. What does that number translate to? Set the type to complex and leave the vector length as 1. But the number translates to 8, sizeof(std::complexfloat) - George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] GNURadio Companion File Sink
Essentially, the gr_file_sink has one parameter, the size of the data stream in bytes. GRC splits this up into two parameters, the data type (complex, float, int...) and the vector length. The size of the data stream = number of bytes in the data type times the vector length. Unless the data stream is an array of complex, float, int, short, or byte, the vector length should be 1. -Josh isaacgerg wrote: What does the vector length option mean? It is set to 1 by default. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
