NAME

       lc_ctx_coding_set, lc_channel_coding_set - set Librecast channel encoding options

LIBRARY

       Librecast library (liblibrecast, -llibrecast)

SYNOPSIS

       #include <librecast/net.h>

       int lc_ctx_coding_set(lc_ctx_t *ctx, int coding);
       int lc_channel_coding_set(lc_channel_t *chan, int coding);

       Compile and link with -llibrecast.

DESCRIPTION

       lc_ctx_coding_set()   sets   the   default  encoding  options  for  sockets  and  channels
       subsequently created using context ctx.

       lc_channel_coding_set() sets encoding options for a Librecast  channel,  chan,  overriding
       any defaults inherited from the parent Librecast context.

       chan is a pointer to a Librecast channel.

       The coding argument can include the bitwise OR of any of the following coding options:

       LC_CODE_SYMM
              Enable symmetric key encryption. Requires that a symmetric key has been assigned to
              the Channel with lc_channel_set_sym_key(3)

       LC_CODE_FEC_RQ
              Enables RaptorQ Forwards Error Correction  (FEC).   Calling  lc_channel_send(3)  as
              normal encodes the data to be sent.  Subsequent calls to lc_channel_send() with buf
              == NULL will send the next symbol/packet.  To receive,  call  lc_channel_coding_set
              (chan,  LC_CODE_FEC_RQ)  on the receiver and then lc_channel_recv().  Encodings are
              per channel, not per socket, so it  is  necessary  to  use  lc_channel_recv(),  not
              lc_socket_recv(3).

       LC_CODE_FEC_RAND
              Requires LC_CODE_FEC_RQ.  Use random symbols instead of sequential ESIs.

RETURN VALUE

       Returns the current value of the channel coding options.

ERRORS

       None.

SEE ALSO

       lc_channel_new(3),   lc_channel_close(3),  lc_channel_send(3),  lc_channel_set_sym_key(3),
       lc_ctx_new(3), lc_socket_setopt(3), lc_socket_recv(3)