Write some data to the server (for playback sinks), if free_cb is non-NULL this routine is called when all data has been written out and an internal reference to the specified data is kept, the data is not copied. If NULL, the data is copied into an internal buffer. The client my freely seek around in the output buffer. For most applications passing 0 and PA_SEEK_RELATIVE as arguments for offset and seek should be useful.
Referenced by pa_simple_write().