import"nodejs.idl";

Public Member Functions
void	send_event (_FilterEvent evt)

void	remove ()

void	enum_props (function callback_obj)

PropertyValue	get_prop (DOMString pname)

PropertyValue	get_info (DOMString pname)

_FilterPacket	get_packet ()

void	drop_packet ()

void	copy_props (_FilterPid ipid)

void	reset_props (self)

void	forward (_FilterPacket ipck)

void	set_prop (DOMString pcode, PropertyValue prop, unsigned long custom_type)

void	set_info (DOMString pcode, PropertyValue prop, unsigned long custom_type=0)

void	clear_eos (boolean all_pids)

void	check_caps ()

void	discard_block ()

void	allow_direct_dispatch ()

unsigned long	get_clock_type ()

_Fraction	get_clock_timestamp ()

boolean	is_filter_in_parents (_Filter filter)

_BufferOccupancy	get_buffer_occupancy ()

void	loose_connect ()

void	set_framing (boolean framed)

void	set_clock_mode (boolean cmode)

void	set_discard (boolean do_discard)

void	require_source_id ()

void	recompute_dts (boolean do_compute)

PropertyValue	query_cap (DOMString pcode)

void	negotiate_cap (DOMString pcode, PropertyValue prop, unsigned long custom_type=0)

DOMString	resolve_template (DOMString template, unsigned long file_idx=0, DOMString suffix=null)

_FilterPacket	new_pck_ref (_FilterPacket ipck, unsigned long size=0, unsigned long offset=0)

_FilterPacket	new_pck (unsigned long size=0)

_FilterPacket	new_pck_shared (ArrayBuffer data)

_FilterPacket	new_pck_copy (_FilterPacket ipck)

_FilterPacket	new_pck_clone (_FilterPacket ipck)

Data Fields
attribute DOMString	name

attribute readonly DOMString	filter_name

attribute boolean	eos

attribute readonly boolean	has_seen_eos

attribute readonly boolean	eos_received

attribute readonly boolean	would_block

attribute readonly boolean	sparse

attribute unsigned long long	max_buffer

attribute readonly unsigned long long	buffer

attribute readonly boolean	buffer_full

attribute readonly boolean	first_empty

attribute readonly unsigned long long	first_cts

attribute readonly unsigned long self	nb_pck_queued

attribute readonly unsigned long	timescale

attribute readonly unsigned long	min_pck_dur

attribute readonly boolean	playing

attribute readonly unsigned long long	next_ts

attribute readonly boolean	has_decoder

Detailed Description

Custom filter PID object

Member Function Documentation

◆ send_event()

void _FilterPid::send_event ( _FilterEvent evt )

send an event on the pid - see gf_filter_pid_send_event

Parameters

evt	filter event to send

◆ remove()

void _FilterPid::remove ( )

removes this output pid - see gf_filter_pid_remove

◆ enum_props()

void _FilterPid::enum_props ( function callback_obj )

enumerates property on pid

Parameters

callback_obj callback object to use, must have a 'on_prop_enum' method defined taking three parameters, prop_name (string), propval (PropertyValue) and ptype (int, GPAC property data type)

◆ get_prop()

PropertyValue _FilterPid::get_prop ( DOMString pname )

get a PID property

Parameters

pname property name

Returns: property value or null if not found

◆ get_info()

PropertyValue _FilterPid::get_info ( DOMString pname )

get a PID info

Parameters

pname property name

Returns: property value or null if not found

◆ get_packet()

_FilterPacket _FilterPid::get_packet ( )

get first packet of input PID - see gf_filter_pid_get_packet

Returns: packet or null if no packet available

◆ drop_packet()

void _FilterPid::drop_packet ( )

drops (removes) the first packet of input PID - see gf_filter_pid_drop_packet

◆ copy_props()

void _FilterPid::copy_props ( _FilterPid ipid )

copy property of given PID to the current pid - see gf_filter_pid_copy_properties

Parameters

ipid	filter pid to copy from

◆ reset_props()

void _FilterPid::reset_props ( self )

removes all properties of the current pid - see gf_filter_pid_reset_properties

◆ forward()

void _FilterPid::forward ( _FilterPacket ipck )

forward a packet on the current pid - see gf_filter_pck_forward

Parameters

ipck	packet to forward

◆ set_prop()

void _FilterPid::set_prop	(	DOMString	pcode,
		PropertyValue	prop,
		unsigned long	custom_type
	)

set a property the current pid - see gf_filter_pid_set_property and gf_filter_pid_set_property_str

Parameters

pcode	property type
prop	property value to set, or null to remove property
custom_type	type of property if user-defined property. If not set and user-defined, property is a string

◆ set_info()

void _FilterPid::set_info	(	DOMString	pcode,
		PropertyValue	prop,
		unsigned long	custom_type = `0`
	)

set a info property the current pid - see gf_filter_pid_set_info and gf_filter_pid_set_info_str

Parameters

pcode	property type
prop	property value to set, or null to remove property
custom_type	type of property if user-defined property. If not set and user-defined, property is a string

◆ clear_eos()

void _FilterPid::clear_eos ( boolean all_pids )

clears EOS on the current PID - see gf_filter_pid_clear_eos

Parameters

all_pids if true, clears eos on all input pids

◆ check_caps()

void _FilterPid::check_caps ( )

check PID properties match capability of filter - see gf_filter_pid_check_caps

◆ discard_block()

void _FilterPid::discard_block ( )

discard blocking mode on PID - see gf_filter_pid_discard_block

◆ allow_direct_dispatch()

void _FilterPid::allow_direct_dispatch ( )

allow direct dispatch of output to destinations - see gf_filter_pid_allow_direct_dispatch

◆ get_clock_type()

unsigned long _FilterPid::get_clock_type ( )

get current clock type info - see gf_filter_pid_get_clock_info

Returns: clock type

◆ get_clock_timestamp()

_Fraction _FilterPid::get_clock_timestamp ( )

get current clock time stamp - see gf_filter_pid_get_clock_info

Returns: clock timestamp

◆ is_filter_in_parents()

boolean _FilterPid::is_filter_in_parents ( _Filter filter )

check if a filter is in the parent filter chain of the pid - see gf_filter_pid_is_filter_in_parents

Parameters

filter filter to check

Returns: true or false

◆ get_buffer_occupancy()

_BufferOccupancy _FilterPid::get_buffer_occupancy ( )

get buffer occupancy - see gf_filter_pid_get_buffer_occupancy

Returns: buffer occupancy object

◆ loose_connect()

void _FilterPid::loose_connect ( )

sets loose connect mode - see gf_filter_pid_set_loose_connect

◆ set_framing()

void _FilterPid::set_framing ( boolean framed )

sets framing mode - see gf_filter_pid_set_framing_mode

Parameters

framed if true, complete frames only will be delivered on the pid

◆ set_clock_mode()

void _FilterPid::set_clock_mode ( boolean cmode )

sets clock mode - see gf_filter_pid_set_clock_mode #

Parameters

cmode clock mode operation of filter

◆ set_discard()

void _FilterPid::set_discard ( boolean do_discard )

sets discard mode - see gf_filter_pid_set_discard

Parameters

do_discard if True, discard is on

◆ require_source_id()

void _FilterPid::require_source_id ( )

enforces sourceID to be present for output pids of this filter - see gf_filter_pid_require_source_id

◆ recompute_dts()

void _FilterPid::recompute_dts ( boolean do_compute )

sets DTS recomputing mode - see gf_filter_pid_recompute_dts

Parameters

do_compute if True, DTS are recomputed

◆ query_cap()

PropertyValue _FilterPid::query_cap ( DOMString pcode )

queries a capability property on output PID - see gf_filter_pid_caps_query and gf_filter_pid_caps_query_str

Parameters

pcode property to check

Returns: property value if found, null otherwise

◆ negotiate_cap()

void _FilterPid::negotiate_cap	(	DOMString	pcode,
		PropertyValue	prop,
		unsigned long	custom_type = `0`
	)

negotiates a capability property on input PID - see gf_filter_pid_negotiate_property and gf_filter_pid_negotiate_property_dyn

Parameters

pcode	property to negotiate
prop	property to negotiate
custom_type	type of property if user-defined property. If not set and user-defined, property is a string

◆ resolve_template()

DOMString _FilterPid::resolve_template	(	DOMString	template,
		unsigned long	file_idx = `0`,
		DOMString	suffix = `null`
	)

resolves a template string - see gf_filter_pid_resolve_file_template

Parameters

template	the template string
file_idx	the file index
suffix	the file suffix

Returns: the resolved template string

◆ new_pck_ref()

_FilterPacket _FilterPid::new_pck_ref	(	_FilterPacket	ipck,
		unsigned long	size = `0`,
		unsigned long	offset = `0`
	)

creates a new packet referring to an existing packet - see gf_filter_pck_new_ref

Parameters

ipck	the input (referenced) packet
size	the data size of the new packet
offset	the offset in the original data

Returns: the new FilterPacket or None if failure

◆ new_pck()

_FilterPacket _FilterPid::new_pck ( unsigned long size = 0 )

creates a new packet of the given size, allocating memory in libgpac - see gf_filter_pck_new_alloc

Parameters

size	the data size of the new packet

Returns: the new FilterPacket or None if failure

◆ new_pck_shared()

_FilterPacket _FilterPid::new_pck_shared ( ArrayBuffer data )

creates a new packet sharing memory of the filter - see gf_filter_pck_new_shared The filter object must have a packet_release method with arguments [ FilterPid, FilterPacket ]

Parameters

data	the data to use

Returns: the new FilterPacket or None if failure

◆ new_pck_copy()

_FilterPacket _FilterPid::new_pck_copy ( _FilterPacket ipck )

creates a new packet copying a source packet - see gf_filter_pck_new_copy

Parameters

ipck	the FilterPacket to copy

Returns: the new FilterPacket or None if failure

◆ new_pck_clone()

_FilterPacket _FilterPid::new_pck_clone ( _FilterPacket ipck )

creates a new packet cloning a source packet - see gf_filter_pck_new_clone

Parameters

ipck	the FilterPacket to clone

Returns: the new FilterPacket or None if failure

Field Documentation

◆ name

attribute DOMString _FilterPid::name

name of the PID - see gf_filter_pid_get_name and gf_filter_pid_set_name

◆ filter_name

attribute readonly DOMString _FilterPid::filter_name

name of the parent filter - see gf_filter_pid_get_filter_name

◆ eos

attribute boolean _FilterPid::eos

end of stream property of PID - see gf_filter_pid_is_eos and gf_filter_pid_set_eos

◆ has_seen_eos

attribute readonly boolean _FilterPid::has_seen_eos

True if end of stream was seen in the chain but has not yet reached the filter - see gf_filter_pid_has_seen_eos

◆ eos_received

attribute readonly boolean _FilterPid::eos_received

True if end of stream was seen on the input PID but some packets are still to be processed - see gf_filter_pid_eos_received

◆ would_block

attribute readonly boolean _FilterPid::would_block

True if PID would block - see gf_filter_pid_would_block

◆ sparse

attribute readonly boolean _FilterPid::sparse

True if PID is sparse - see gf_filter_pid_is_sparse

◆ max_buffer

attribute unsigned long long _FilterPid::max_buffer

maximum buffer of PID in microseconds - see gf_filter_pid_get_max_buffer and gf_filter_pid_set_max_buffer

◆ buffer

attribute readonly unsigned long long _FilterPid::buffer

buffer of PID in microseconds - see gf_filter_pid_query_buffer_duration

◆ buffer_full

attribute readonly boolean _FilterPid::buffer_full

True if buffer is full - see gf_filter_pid_query_buffer_duration

◆ first_empty

attribute readonly boolean _FilterPid::first_empty

True if no pending packet - see gf_filter_pid_first_packet_is_empty

◆ first_cts

attribute readonly unsigned long long _FilterPid::first_cts

value of CTS of first pending packet, null if none - see gf_filter_pid_get_first_packet_cts

◆ nb_pck_queued

attribute readonly unsigned long self _FilterPid::nb_pck_queued

number of queued packets for input pid - see gf_filter_pid_get_packet_count

◆ timescale

attribute readonly unsigned long _FilterPid::timescale

timescale of pid - see gf_filter_pid_get_timescale

◆ min_pck_dur

attribute readonly unsigned long _FilterPid::min_pck_dur

minimum packet duration (in timescale) of pid - see gf_filter_pid_get_min_pck_duration

◆ playing

attribute readonly boolean _FilterPid::playing

True if PID is playing - see gf_filter_pid_is_playing

◆ next_ts

attribute readonly unsigned long long _FilterPid::next_ts

Next estimated timestamp on pid - see gf_filter_pid_get_next_ts

◆ has_decoder

attribute readonly boolean _FilterPid::has_decoder

Set to true if input chain has a decoder - see gf_filter_pid_has_decoder

Public Member Functions

Data Fields

Detailed Description

Member Function Documentation

◆ send_event()

◆ remove()

◆ enum_props()

◆ get_prop()

◆ get_info()

◆ get_packet()

◆ drop_packet()

◆ copy_props()

◆ reset_props()

◆ forward()

◆ set_prop()

◆ set_info()

◆ clear_eos()

◆ check_caps()

◆ discard_block()

◆ allow_direct_dispatch()

◆ get_clock_type()

◆ get_clock_timestamp()

◆ is_filter_in_parents()

◆ get_buffer_occupancy()

◆ loose_connect()

◆ set_framing()

◆ set_clock_mode()

◆ set_discard()

◆ require_source_id()

◆ recompute_dts()

◆ query_cap()

◆ negotiate_cap()

◆ resolve_template()

◆ new_pck_ref()

◆ new_pck()

◆ new_pck_shared()

◆ new_pck_copy()

◆ new_pck_clone()

Field Documentation

◆ name

◆ filter_name

◆ eos

◆ has_seen_eos

◆ eos_received

◆ would_block

◆ sparse

◆ max_buffer

◆ buffer

◆ buffer_full

◆ first_empty

◆ first_cts

◆ nb_pck_queued

◆ timescale

◆ min_pck_dur

◆ playing

◆ next_ts

◆ has_decoder