transport.h File Reference

#include <jack/types.h>

Go to the source code of this file.

Data Structures
struct	POST_PACKED_STRUCTURE
struct	jack_transport_info_t
Defines
#define	JACK_POSITION_MASK   (JackPositionBBT|JackPositionTimecode|JackBBTFrameOffset|JackAudioVideoRatio|JackVideoFrameOffset)
#define	EXTENDED_TIME_INFO
Typedefs
typedef uint64_t	jack_unique_t
typedef int(*)	JackSyncCallback (jack_transport_state_t state, jack_position_t *pos, void *arg)
typedef void(*)	JackTimebaseCallback (jack_transport_state_t state, jack_nframes_t nframes, jack_position_t *pos, int new_pos, void *arg)
Enumerations
enum	jack_transport_state_t { JackTransportStopped = 0, JackTransportRolling = 1, JackTransportLooping = 2, JackTransportStarting = 3 }
enum	jack_position_bits_t {   JackPositionBBT = 0x10, JackPositionTimecode = 0x20, JackBBTFrameOffset = 0x40, JackAudioVideoRatio = 0x80,   JackVideoFrameOffset = 0x100 }
enum	jack_transport_bits_t {   JackTransportState = 0x1, JackTransportPosition = 0x2, JackTransportLoop = 0x4, JackTransportSMPTE = 0x8,   JackTransportBBT = 0x10 }
Functions
int	jack_release_timebase (jack_client_t *client)
int	jack_set_sync_callback (jack_client_t *client, JackSyncCallback sync_callback, void *arg)
int	jack_set_sync_timeout (jack_client_t *client, jack_time_t timeout)
int	jack_set_timebase_callback (jack_client_t *client, int conditional, JackTimebaseCallback timebase_callback, void *arg)
int	jack_transport_locate (jack_client_t *client, jack_nframes_t frame)
jack_transport_state_t	jack_transport_query (const jack_client_t *client, jack_position_t *pos)
jack_nframes_t	jack_get_current_transport_frame (const jack_client_t *client)
int	jack_transport_reposition (jack_client_t *client, jack_position_t *pos)
void	jack_transport_start (jack_client_t *client)
void	jack_transport_stop (jack_client_t *client)
void	jack_get_transport_info (jack_client_t *client, jack_transport_info_t *tinfo)
void	jack_set_transport_info (jack_client_t *client, jack_transport_info_t *tinfo)

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Define Documentation

#define EXTENDED_TIME_INFO

#define JACK_POSITION_MASK   (JackPositionBBT|JackPositionTimecode|JackBBTFrameOffset|JackAudioVideoRatio|JackVideoFrameOffset)

all valid position bits

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Typedef Documentation

typedef uint64_t jack_unique_t

Unique ID (opaque)

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Enumeration Type Documentation

enum jack_position_bits_t

Optional struct jack_position_t fields.

Enumerator:

JackPositionBBT	Bar, Beat, Tick
JackPositionTimecode	External timecode
JackBBTFrameOffset	Frame offset of BBT information
JackAudioVideoRatio	audio frames per video frame
JackVideoFrameOffset	frame offset of first video frame

enum jack_transport_bits_t

Optional struct jack_transport_info_t fields.

See also:

jack_position_bits_t.

Enumerator:

JackTransportState	Transport state
JackTransportPosition	Frame number
JackTransportLoop	Loop boundaries (ignored)
JackTransportSMPTE	SMPTE (ignored)
JackTransportBBT	Bar, Beat, Tick

enum jack_transport_state_t

Transport states.

Enumerator:

JackTransportStopped	Transport halted
JackTransportRolling	Transport playing
JackTransportLooping	For OLD_TRANSPORT, now ignored
JackTransportStarting	Waiting for sync ready

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Function Documentation

void jack_get_transport_info	(	jack_client_t *	client,
		jack_transport_info_t *	tinfo
	)

Gets the current transport info structure (deprecated).

Parameters:

	client	the JACK client structure.
	tinfo	current transport info structure. The "valid" field describes which fields contain valid data.

Deprecated:

This is for compatibility with the earlier transport interface. Use jack_transport_query(), instead.

Precondition:

Must be called from the process thread.

void jack_set_transport_info	(	jack_client_t *	client,
		jack_transport_info_t *	tinfo
	)

Set the transport info structure (deprecated).

Deprecated:

This function still exists for compatibility with the earlier transport interface, but it does nothing. Instead, define a JackTimebaseCallback.

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