Re: [Discuss-gnuradio] INFO: Detected an invalid packet at item INFO: Parser returned #f

[Bastian Bloessl]

Hi,

On 01/29/2015 01:03 PM, zs wrote:
> Detected an invalid packet at item INFO: Parser returned #f".
> The answer may be "RF settings are distorting your signal" or others.I
> want to ask a question.Which block in gnuradio give us this hint.Where
> is the source code of the block?And have someone can help me to explain
> this problem more details?Why will have this error/warning?


~/src/gnuradio >> ack-grep -C 3 "an invalid packet"
gr-digital/lib/packet_headerparser_b_impl.cc
80-      );
81-
82-      if (!d_header_formatter->header_parser(in, tags)) {
83:	GR_LOG_INFO(d_logger, boost::format("Detected an invalid packet at 
item %1%") % nitems_read(0));
84-     message_port_pub(msg_port_id, pmt::PMT_F);
85-      } else {
86-     pmt::pmt_t dict(pmt::make_dict());


I guess your packet header is corrupt.

Best,
Bastian