Ui::Loudness::Node Struct Reference

Classes
struct	state_deleter
struct	worker_t

Public Types
using	Layer = Ui::Loudness::Layer

Public Member Functions
	halp_meta (name, "Loudness") halp_meta(c_name
LoudnessMeter	halp_meta (category, "Monitoring/Audio") halp_meta(author
LoudnessMeter ossia	libebur128 (Jan Kokemüller)") halp_meta(manual_url
LoudnessMeter ossia	halp_meta (description, "Loudness per ITU-R BS.1770 and EBU R128: momentary, short-term and " "integrated loudness, loudness range and true peak") halp_meta(uuid
LoudnessMeter ossia a39302dc b849	halp_flag (fully_custom_item)
void	prepare (halp::setup s)
void	start ()
	Playback started: a new programme.
void	map_channels (int nch)
void	request_recycle ()
bool	clear () noexcept
	Starts over with a spare state; false when none is ready yet.
void	operator() (int frames)

Public Attributes
LoudnessMeter ossia	score
struct {
halp::dynamic_audio_bus<"Audio", double >   audio
struct range
mode
standard
custom
scale
relative
running
halp::impulse_button<"Reset">   reset
follow
layout
}	inputs
struct {
halp::val_port<"Momentary", float >   momentary
halp::val_port<"Short-term", float >   short_term
halp::val_port<"Integrated", float >   integrated
range
true_peak
}	outputs
std::shared_ptr< LoudnessMonitor >	monitor = std::make_shared<LoudnessMonitor>()
struct Ui::Loudness::Node::worker_t	worker
std::unique_ptr< ebur128_state, state_deleter >	state
std::vector< double >	interleaved = std::vector<double>(std::size_t(block_frames) * max_channels)
std::array< ossia::meters::true_peak, max_channels >	tp
std::array< double, max_channels >	tp_max {}
	Highest true peak of each channel since the last reset, linear.
int	mapped_channels {-1}
Ui::Monitor::ChannelLayout	mapped_layout {}
double	rate {}
double	since_readings {}
bool	restart {}
bool	reset_pending {}
	A reset waits for a spare state: until one is ready, nothing is measured.
Readings	readings

Static Public Attributes
static constexpr int	block_frames = 512

Member Function Documentation

prepare()

void Ui::Loudness::Node::prepare ( halp::setup  s )

inline

Also called on the execution thread when the channel count changes: the states measure max_channels whatever the input, so only a new rate rebuilds them.

Member Data Documentation

state

std::unique_ptr<ebur128_state, state_deleter> Ui::Loudness::Node::state

Measures every channel up to max_channels: unused ones are switched off rather than the state rebuilt, which would allocate

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The documentation for this struct was generated from the following file:

• Loudness.hpp