Stream to Tagged Stream
Converts a regular stream into a tagged stream.
All this block does is add length tags in regular intervals. It can be used to connect a regular stream to a gr::tagged_stream_block.
This block is meant to be connected directly to a tagged stream block. If there are blocks between this block and a tagged stream block, make sure they either don't change the rate, or modify the tag value to make sure the length tags actually represent the packet length.
- Packet length (R)
- Number of items per tagged stream packet. One tag is written every Packet length items and contains that number.
- Length Tag Key
- Key of the length tag.
This flowgraph can be found at 
- C++ files
- Header files
- Public header files
- Block definition