On Mon, Mar 7, 2011 at 2:45 AM, Tom Hendrick <sdtom...@yahoo.com
<mailto:sdtom...@yahoo.com>> wrote:
Thanks Tom,
I'm a beginner still with linux/GNURadio so I couldn't really find
any information that makes sense as to how gr-atsc handles the
fifo piping.
I had seen an example online of someone that had done a
transmission using the USRP and piping. They had piped the output
of gstreamer using mkfifo like I had tried but I can't get any
output on the USRP when I read from the file created by mkfifo.
http://wiki.oz9aec.net/index.php/Simple_DVB_with_Gstreamer_and_GNU_Radio
-Tom
Hi tom,
Maybe the program you use for writing the video to the file uses some
operations that only work on regular files? You may compare it to
gnuradio/core/src/lib/io/gr_file_sink.cc which works well with named
pipes. Also note that applications that use named pipes are frozen
until both ends of the pipe are open. So if both applications are
running then the "pipe connection" should be OK and the problem could
be data type mismatch or something like that.
Alex
So, you have to make sure that your "producer" isn't buffering really
large amounts of data. Also, stupid question, are you producer and
consumer processes both executing at the same time, and if so, how
are you arranging that?
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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