PlaybackPipeline Class Reference

#include <PlaybackPipeline.h>

Detailed Description

The PlaybackPipeline class.

Public Types
enum	FadeMode : quint8 {   NoFading =0,   FadeIn,   FadeOut }

Signals
void	sig_duration_changed ()
void	sig_finished ()
void	sig_about_to_finish (qint64)
void	sig_pos_changed_ms (qint64)
void	sig_data (uchar *, quint64)

Public Member Functions
	PlaybackPipeline (Engine *engine, QObject *parent=nullptr)
bool	init (GstState state=GST_STATE_NULL) override
bool	set_uri (gchar *uri) override
void	set_n_sound_receiver (int num_sound_receiver)
void	set_current_volume (double volume) override
	set current volume of pipeline More...
double	get_current_volume () const override
	get current volume of pipeline More...
GstElement *	get_source () const override
GstElement *	get_pipeline () const override
virtual GstState	get_state ()
virtual void	refresh_position ()
virtual void	refresh_duration ()
virtual void	finished ()
virtual void	check_about_to_finish ()
virtual qint64	get_time_to_go () const
virtual void	set_data (uchar *data, quint64 size)
virtual qint64	get_duration_ms () const final
virtual qint64	get_source_position_ms () const final
virtual qint64	get_pipeline_position_ms () const final
bool	has_element (GstElement *e) const
quint64	get_fading_time_ms () const
	get fading time in ms More...
void	fade_in ()
	start to fade in
void	fade_out ()
	start to fade out
void	fader_timed_out ()
	function is called periodically. This function should not be used from outside TODO
void	add_element (GstElement *element, GstElement *first_element, GstElement *second_element)
	Add an element between two elements. More...
void	remove_element (GstElement *element, GstElement *first_element, GstElement *second_element)
	remove an element between two elements More...

Public Slots
void	play () override
void	pause () override
void	stop () override
void	set_eq_band (const QString &band_name, double val)
void	set_speed (float speed, double pitch, bool preserve_pitch)
void	set_streamrecorder_path (const QString &session_path)
gint64	seek_rel (double percent, gint64 ref_ns)
gint64	seek_abs (gint64 ns)

Protected Member Functions
bool	tee_connect (GstElement *tee, GstPadTemplate *tee_src_pad_template, GstElement *queue, const QString &queue_name)
bool	create_element (GstElement **elem, const gchar *elem_name, const gchar *name="")
void	abort_fader ()

Protected Slots
void	_sl_vol_changed ()
void	_sl_show_level_changed ()
void	_sl_show_spectrum_changed ()
void	_sl_mute_changed ()
void	_sl_speed_active_changed ()
void	_sl_speed_changed ()

Protected Attributes
QString	_name
GstBus *	_bus =nullptr
GstElement *	_pipeline =nullptr
gchar *	_uri =nullptr
qint64	_duration_ms
qint64	_position_source_ms
qint64	_position_pipeline_ms
Settings *	_settings =nullptr

Member Function Documentation

add_element()

void ChangeablePipeline::add_element ( GstElement *  element, GstElement *  first_element, GstElement *  second_element  )

inherited

Add an element between two elements.

Parameters

element	element to add
first_element	element, after which new element is inserted
second_element	element, before which new element is inserted (may be null)

get_current_volume()

double PlaybackPipeline::get_current_volume ( ) const

overridevirtual

get current volume of pipeline

Returns

value between 0 and 1.0

Implements CrossFader.

get_fading_time_ms()

quint64 CrossFader::get_fading_time_ms ( ) const

inherited

get fading time in ms

Returns

fading time in ms

remove_element()

void ChangeablePipeline::remove_element ( GstElement *  element, GstElement *  first_element, GstElement *  second_element  )

inherited

remove an element between two elements

Parameters

element	element to remove
first_element	element, after which new element is removed
second_element	element, before which new element is removed (may be null)

set_current_volume()

void PlaybackPipeline::set_current_volume ( double  vol )

overridevirtual

set current volume of pipeline

Parameters

vol	value between 0 and 1.0

Implements CrossFader.

Inheritance diagram for PlaybackPipeline: