static int CalculateRate( sap_handler_t *p_sap, sap_address_t *p_address )
{
int i_read;
char buffer[SAP_MAX_BUFFER];
int i_tot = 0;
mtime_t i_temp;
int i_rate;
if( p_address->t1 == 0 )
{
p_address->t1 = mdate();
return VLC_SUCCESS;
}
do
{
/* Might be too slow if we have huge data */
i_read = net_ReadNonBlock( p_sap, p_address->i_rfd, buffer,
SAP_MAX_BUFFER, 0 );
i_tot += i_read;
} while( i_read > 0 && i_tot < SAP_MAX_BUFFER );
i_temp = mdate();
/* We calculate the rate every 5 seconds */
if( i_temp - p_address->t1 < 5000000 )
{
p_address->i_buff += i_tot;
return VLC_SUCCESS;
}
/* Bits/second */
i_rate = (int)(8*1000000*((mtime_t)p_address->i_buff + (mtime_t)i_tot ) /
(i_temp - p_address->t1 ));
p_address->i_limit = 10000;
p_address->i_interval = ((1000*i_rate / p_address->i_limit) *
(MAX_INTERVAL - MIN_INTERVAL))/1000 + MIN_INTERVAL;
if( p_address->i_interval > MAX_INTERVAL || p_address->i_interval < 0 )
{
p_address->i_interval = MAX_INTERVAL;
}
#ifdef EXTRA_DEBUG
msg_Dbg( p_sap,"%s:%i : Rate=%i, Interval = %i s",
p_address->psz_address,p_address->i_port,
i_rate,
p_address->i_interval );
#endif
p_address->b_ready = VLC_TRUE;
p_address->t1 = i_temp;
p_address->i_buff = 0;
return VLC_SUCCESS;
}
/*****************************************************************************
* NetCommand: Get a command from the network
*****************************************************************************/
static void NetCommand( sout_stream_t *p_stream )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
char psz_buffer[11];
int i_len = net_ReadNonBlock( p_stream, p_sys->i_fd, NULL, (uint8_t *)&psz_buffer[0],
sizeof( psz_buffer ) - 1, 0 );
if ( i_len > 0 )
{
psz_buffer[i_len] = '\0';
int i_cmd = strtol( psz_buffer, NULL, 0 );
if ( i_cmd < -1 || i_cmd > p_sys->i_nb_pictures )
{
msg_Err( p_stream, "got a wrong command (%d)", i_cmd );
return;
}
p_sys->i_cmd = i_cmd;
msg_Dbg( p_stream, "new command: %d old:%d", p_sys->i_cmd,
p_sys->i_old_cmd );
}
}
vlc_bool_t ReadCommand( intf_thread_t *p_intf, char *p_buffer, int *pi_size )
{
int i_read = 0;
#ifdef WIN32
if( p_intf->p_sys->i_socket == -1 )
return ReadWin32( p_intf, p_buffer, pi_size );
#endif
while( !p_intf->b_die && *pi_size < MAX_LINE_LENGTH &&
(i_read = net_ReadNonBlock( p_intf, p_intf->p_sys->i_socket == -1 ?
STDIN_FILENO : p_intf->p_sys->i_socket,
p_buffer + *pi_size, 1, INTF_IDLE_SLEEP ) ) > 0 )
{
if( p_buffer[ *pi_size ] == '\r' || p_buffer[ *pi_size ] == '\n' )
break;
(*pi_size)++;
}
/* Connection closed */
if( i_read == -1 )
{
p_intf->p_sys->i_socket = -1;
p_buffer[ *pi_size ] = 0;
return VLC_TRUE;
}
if( *pi_size == MAX_LINE_LENGTH ||
p_buffer[ *pi_size ] == '\r' || p_buffer[ *pi_size ] == '\n' )
{
p_buffer[ *pi_size ] = 0;
return VLC_TRUE;
}
return VLC_FALSE;
}
