Difference between revisions of "BCL programming tips"
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== | == RTP decoding == | ||
* using LINK | |||
== RTP streaming == | == RTP streaming == | ||
Revision as of 09:13, 18 December 2008
RTP decoding
- using LINK
RTP streaming
- MP3 bit reservoir
Audio handling
- reading/writing must happen in "real time"
Tips for writing efficient programs
- use ON var GOTO
- do not use large if then or nested if then
UDP reception
- lastlen trick
- must proceed all UDP packets in the handler
Multicast
BCL supports up to 16 IP multicast groups at a time. The subscription, periodic membership reporting as well as group leaving is performed automatically by the firmware and does not have to be handled by the BCL application. IGMP version 1 and 2 is supported.
Subscribing to a group
To subscribe to a multicast group enter the desired multicast address to the UDP open statement.
Example:
OPEN "UDP:224.10.1.3:5000" as 1
Leaving the group
The group is automatically left if the respective handle is closed:
CLOSE 1
UDP source/destination ports
- source port is the same as the port in the open statement
