Creates a new stream object
#include <roaraudio.h>
int roar_stream_new(struct roar_stream * s, unsigned int rate, unsigned int channels, unsigned int bits, unsigned int codec);
This call create a new stream object.
The parameter s is a pointer to the new stream object.
For a description of the other parameters see roar_simple_play(3).
On success these calls return 0. On error, -1 is returned.
FIXME