> I think you are misunderstanding how gr.message_sink works. Since > it's possible to set the item size small (e.g., gr.sizeof_float), it > returns as many samples as it can in a message. It does however > provide you information about what it did in the arg1 and arg2 field. > > // build a message to hold whatever we've got > gr_message_sptr msg = gr_make_message(0, // msg type > d_itemsize, // arg1 for other end > noutput_items, // arg2 for other end > (redundant) > noutput_items * d_itemsize); // len > of msg > > Eric Eric, thanks for the reply and for clearing up the confusion. I now understand how this works. Sorry if I did not phrase my question correctly earlier: I want to transmit a file using packets repeatedly, i.e. the first packet transmits the entire contents of file(as a string, size <= 4096), the second packet again transmits the entire file and so on. I thought that the best place to start was tx_voice.py since all I needed to do was replace the audio_rx class with my own which got the data from a file. The program ran perfectly without glitches but after the sending the first packet, I was unable to loop around for a second time (Still can't figure it out). So I decided to start from scratch and got confused with the message stuff.
Thanks for your patience. Regards, Kshitij _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
