gate or zero output if ctcss tone not present More...

#include <ctcss_squelch_ff.h>

Inheritance diagram for gr::analog::ctcss_squelch_ff:

Public Types
typedef boost::shared_ptr < ctcss_squelch_ff >	sptr
Public Types inherited from gr_block
enum	{ WORK_CALLED_PRODUCE = -2, WORK_DONE = -1 }
	Magic return values from general_work. More...
enum	tag_propagation_policy_t { TPP_DONT = 0, TPP_ALL_TO_ALL = 1, TPP_ONE_TO_ONE = 2 }

Public Member Functions
virtual std::vector< float >	squelch_range () const =0
virtual float	level () const =0
virtual void	set_level (float level)=0
virtual int	len () const =0
virtual int	ramp () const =0
virtual void	set_ramp (int ramp)=0
virtual bool	gate () const =0
virtual void	set_gate (bool gate)=0
virtual bool	unmuted () const =0
Public Member Functions inherited from gr::analog::squelch_base_ff
	squelch_base_ff ()
Public Member Functions inherited from gr_block
virtual	~gr_block ()
unsigned	history () const
void	set_history (unsigned history)
bool	fixed_rate () const
	Return true if this block has a fixed input to output rate.
virtual void	forecast (int noutput_items, gr_vector_int &ninput_items_required)
	Estimate input requirements given output request.
virtual int	general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
	compute output items from input items
virtual bool	start ()
	Called to enable drivers, etc for i/o devices.
virtual bool	stop ()
	Called to disable drivers, etc for i/o devices.
void	set_output_multiple (int multiple)
	Constrain the noutput_items argument passed to forecast and general_work.
int	output_multiple () const
bool	output_multiple_set () const
void	set_alignment (int multiple)
	Constrains buffers to work on a set item alignment (for SIMD)
int	alignment () const
void	set_unaligned (int na)
int	unaligned () const
void	set_is_unaligned (bool u)
bool	is_unaligned () const
void	consume (int which_input, int how_many_items)
	Tell the scheduler `how_many_items` of input stream `which_input` were consumed.
void	consume_each (int how_many_items)
	Tell the scheduler `how_many_items` were consumed on each input stream.
void	produce (int which_output, int how_many_items)
	Tell the scheduler `how_many_items` were produced on output stream `which_output`.
void	set_relative_rate (double relative_rate)
	Set the approximate output rate / input rate.
double	relative_rate () const
	return the approximate output rate / input rate
virtual int	fixed_rate_ninput_to_noutput (int ninput)
	Given ninput samples, return number of output samples that will be produced. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this.
virtual int	fixed_rate_noutput_to_ninput (int noutput)
	Given noutput samples, return number of input samples required to produce noutput. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this.
uint64_t	nitems_read (unsigned int which_input)
	Return the number of items read on input stream which_input.
uint64_t	nitems_written (unsigned int which_output)
	Return the number of items written on output stream which_output.
tag_propagation_policy_t	tag_propagation_policy ()
	Asks for the policy used by the scheduler to moved tags downstream.
void	set_tag_propagation_policy (tag_propagation_policy_t p)
	Set the policy by the scheduler to determine how tags are moved downstream.
int	min_noutput_items () const
	Return the minimum number of output items this block can produce during a call to work.
void	set_min_noutput_items (int m)
	Set the minimum number of output items this block can produce during a call to work.
int	max_noutput_items ()
	Return the maximum number of output items this block will handle during a call to work.
void	set_max_noutput_items (int m)
	Set the maximum number of output items this block will handle during a call to work.
void	unset_max_noutput_items ()
	Clear the switch for using the max_noutput_items value of this block.
bool	is_set_max_noutput_items ()
	Ask the block if the flag is or is not set to use the internal value of max_noutput_items during a call to work.
void	expand_minmax_buffer (int port)
long	max_output_buffer (size_t i)
	Returns max buffer size on output port `i`.
void	set_max_output_buffer (long max_output_buffer)
	Sets max buffer size on all output ports.
void	set_max_output_buffer (int port, long max_output_buffer)
	Sets max buffer size on output port `port`.
long	min_output_buffer (size_t i)
	Returns min buffer size on output port `i`.
void	set_min_output_buffer (long min_output_buffer)
	Sets min buffer size on all output ports.
void	set_min_output_buffer (int port, long min_output_buffer)
	Sets min buffer size on output port `port`.
float	pc_noutput_items ()
	Gets average noutput_items performance counter.
float	pc_noutput_items_var ()
	Gets variance of noutput_items performance counter.
float	pc_nproduced ()
	Gets average num items produced performance counter.
float	pc_nproduced_var ()
	Gets variance of num items produced performance counter.
float	pc_input_buffers_full (int which)
	Gets average fullness of `which` input buffer.
float	pc_input_buffers_full_var (int which)
	Gets variance of fullness of `which` input buffer.
std::vector< float >	pc_input_buffers_full ()
	Gets average fullness of all input buffers.
std::vector< float >	pc_input_buffers_full_var ()
	Gets variance of fullness of all input buffers.
float	pc_output_buffers_full (int which)
	Gets average fullness of `which` input buffer.
float	pc_output_buffers_full_var (int which)
	Gets variance of fullness of `which` input buffer.
std::vector< float >	pc_output_buffers_full ()
	Gets average fullness of all output buffers.
std::vector< float >	pc_output_buffers_full_var ()
	Gets variance of fullness of all output buffers.
float	pc_work_time ()
	Gets average clock cycles spent in work.
float	pc_work_time_var ()
	Gets average clock cycles spent in work.
void	reset_perf_counters ()
	Resets the performance counters.
void	set_processor_affinity (const std::vector< unsigned int > &mask)
	Set the thread's affinity to processor core `n`.
void	unset_processor_affinity ()
	Remove processor affinity to a specific core.
std::vector< unsigned int >	processor_affinity ()
	Get the current processor affinity.
gr_block_detail_sptr	detail () const
void	set_detail (gr_block_detail_sptr detail)
Public Member Functions inherited from gr_basic_block
virtual	~gr_basic_block ()
long	unique_id () const
long	symbolic_id () const
std::string	name () const
std::string	symbol_name () const
gr_io_signature_sptr	input_signature () const
gr_io_signature_sptr	output_signature () const
gr_basic_block_sptr	to_basic_block ()
bool	alias_set ()
std::string	alias ()
pmt::pmt_t	alias_pmt ()
void	set_block_alias (std::string name)
void	message_port_register_in (pmt::pmt_t port_id)
void	message_port_register_out (pmt::pmt_t port_id)
void	message_port_pub (pmt::pmt_t port_id, pmt::pmt_t msg)
void	message_port_sub (pmt::pmt_t port_id, pmt::pmt_t target)
void	message_port_unsub (pmt::pmt_t port_id, pmt::pmt_t target)
virtual bool	message_port_is_hier (pmt::pmt_t port_id)
virtual bool	message_port_is_hier_in (pmt::pmt_t port_id)
virtual bool	message_port_is_hier_out (pmt::pmt_t port_id)
pmt::pmt_t	message_ports_in ()
	Get input message port names.
pmt::pmt_t	message_ports_out ()
	Get output message port names.
void	_post (pmt::pmt_t which_port, pmt::pmt_t msg)
bool	empty_p (pmt::pmt_t which_port)
	is the queue empty?
bool	empty_p ()
size_t	nmsgs (pmt::pmt_t which_port)
	How many messages in the queue?
void	insert_tail (pmt::pmt_t which_port, pmt::pmt_t msg)
pmt::pmt_t	delete_head_nowait (pmt::pmt_t which_port)
pmt::pmt_t	delete_head_blocking (pmt::pmt_t which_port)
msg_queue_t::iterator	get_iterator (pmt::pmt_t which_port)
void	erase_msg (pmt::pmt_t which_port, msg_queue_t::iterator it)
virtual bool	has_msg_port (pmt::pmt_t which_port)
virtual bool	check_topology (int ninputs, int noutputs)
	Confirm that ninputs and noutputs is an acceptable combination.
template<typename T >
void	set_msg_handler (pmt::pmt_t which_port, T msg_handler)
	Set the callback that is fired when messages are available.
Public Member Functions inherited from gr_msg_accepter
	gr_msg_accepter ()
	~gr_msg_accepter ()
void	post (pmt::pmt_t which_port, pmt::pmt_t msg)
	send `msg` to `msg_accepter` on port `which_port`
Public Member Functions inherited from gruel::msg_accepter
	msg_accepter ()
virtual	~msg_accepter ()

Static Public Member Functions
static sptr	make (int rate, float freq, float level, int len, int ramp, bool gate)
	Make CTCSS tone squelch block.

Protected Member Functions
virtual void	update_state (const float &in)=0
virtual bool	mute () const =0
Protected Member Functions inherited from gr_block
	gr_block (void)
	gr_block (const std::string &name, gr_io_signature_sptr input_signature, gr_io_signature_sptr output_signature)
void	set_fixed_rate (bool fixed_rate)
void	add_item_tag (unsigned int which_output, uint64_t abs_offset, const pmt::pmt_t &key, const pmt::pmt_t &value, const pmt::pmt_t &srcid=pmt::PMT_F)
	Adds a new tag onto the given output buffer.
void	add_item_tag (unsigned int which_output, const gr_tag_t &tag)
	Adds a new tag onto the given output buffer.
void	remove_item_tag (unsigned int which_input, uint64_t abs_offset, const pmt::pmt_t &key, const pmt::pmt_t &value, const pmt::pmt_t &srcid=pmt::PMT_F)
	Removes a tag from the given input buffer.
void	remove_item_tag (unsigned int which_input, const gr_tag_t &tag)
	Removes a tag from the given input buffer.
void	get_tags_in_range (std::vector< gr_tag_t > &v, unsigned int which_input, uint64_t abs_start, uint64_t abs_end)
	Given a [start,end), returns a vector of all tags in the range.
void	get_tags_in_range (std::vector< gr_tag_t > &v, unsigned int which_input, uint64_t abs_start, uint64_t abs_end, const pmt::pmt_t &key)
	Given a [start,end), returns a vector of all tags in the range with a given key.
Protected Member Functions inherited from gr_basic_block
	gr_basic_block (void)
	gr_basic_block (const std::string &name, gr_io_signature_sptr input_signature, gr_io_signature_sptr output_signature)
	Protected constructor prevents instantiation by non-derived classes.
void	set_input_signature (gr_io_signature_sptr iosig)
	may only be called during constructor
void	set_output_signature (gr_io_signature_sptr iosig)
	may only be called during constructor
void	set_color (vcolor color)
	Allow the flowgraph to set for sorting and partitioning.
vcolor	color () const
bool	has_msg_handler (pmt::pmt_t which_port)
	Tests if there is a handler attached to port `which_port`.
virtual void	dispatch_msg (pmt::pmt_t which_port, pmt::pmt_t msg)

Additional Inherited Members
Protected Types inherited from gr_basic_block
enum	vcolor { WHITE, GREY, BLACK }
Protected Attributes inherited from gr_block
std::vector< long >	d_max_output_buffer
std::vector< long >	d_min_output_buffer
gruel::mutex	d_setlock