stream.c File Reference

Include dependency graph for stream.c:

Data Structures
struct	buffer
struct	queue
struct	data
struct	param
struct	control
struct	stream

Macros
#define	NAME   "stream"
#define	MAX_BUFFERS   64
#define	MASK_BUFFERS   (MAX_BUFFERS-1)
#define	MAX_PORTS   1
#define	BUFFER_FLAG_MAPPED   (1 << 0)
#define	BUFFER_FLAG_QUEUED   (1 << 1)
#define	BUFFER_FLAG_ADDED   (1 << 2)
#define	PARAM_FLAG_LOCKED   (1 << 0)

Functions
SPA_EXPORT struct pw_stream *	pw_stream_new (struct pw_core *core, const char *name, struct pw_properties *props)
SPA_EXPORT struct pw_stream *	pw_stream_new_simple (struct pw_loop *loop, const char *name, struct pw_properties *props, const struct pw_stream_events *events, void *data)
const SPA_EXPORT char *	pw_stream_state_as_string (enum pw_stream_state state)
SPA_EXPORT void	pw_stream_destroy (struct pw_stream *stream)
SPA_EXPORT void	pw_stream_add_listener (struct pw_stream *stream, struct spa_hook *listener, const struct pw_stream_events *events, void *data)
SPA_EXPORT enum pw_stream_state	pw_stream_get_state (struct pw_stream *stream, const char **error)
const SPA_EXPORT char *	pw_stream_get_name (struct pw_stream *stream)
SPA_EXPORT const struct pw_properties *	pw_stream_get_properties (struct pw_stream *stream)
SPA_EXPORT int	pw_stream_update_properties (struct pw_stream *stream, const struct spa_dict *dict)
SPA_EXPORT struct pw_core *	pw_stream_get_core (struct pw_stream *stream)
SPA_EXPORT int	pw_stream_connect (struct pw_stream *stream, enum pw_direction direction, uint32_t target_id, enum pw_stream_flags flags, const struct spa_pod **params, uint32_t n_params)
SPA_EXPORT uint32_t	pw_stream_get_node_id (struct pw_stream *stream)
SPA_EXPORT int	pw_stream_disconnect (struct pw_stream *stream)
SPA_EXPORT int	pw_stream_set_error (struct pw_stream *stream, int res, const char *error,...)
SPA_EXPORT int	pw_stream_update_params (struct pw_stream *stream, const struct spa_pod **params, uint32_t n_params)
SPA_EXPORT int	pw_stream_set_control (struct pw_stream *stream, uint32_t id, uint32_t n_values, float *values,...)
	Set control values. More...
SPA_EXPORT const struct pw_stream_control *	pw_stream_get_control (struct pw_stream *stream, uint32_t id)
SPA_EXPORT int	pw_stream_set_active (struct pw_stream *stream, bool active)
SPA_EXPORT int	pw_stream_get_time (struct pw_stream *stream, struct pw_time *time)
SPA_EXPORT struct pw_buffer *	pw_stream_dequeue_buffer (struct pw_stream *stream)
	Get a buffer that can be filled for playback streams or consumed for capture streams. More...
SPA_EXPORT int	pw_stream_queue_buffer (struct pw_stream *stream, struct pw_buffer *buffer)
	Submit a buffer for playback or recycle a buffer for capture. More...
SPA_EXPORT int	pw_stream_flush (struct pw_stream *stream, bool drain)
	Flush a stream. More...

Macro Definition Documentation

BUFFER_FLAG_ADDED

#define BUFFER_FLAG_ADDED   (1 << 2)

BUFFER_FLAG_MAPPED

#define BUFFER_FLAG_MAPPED   (1 << 0)

BUFFER_FLAG_QUEUED

#define BUFFER_FLAG_QUEUED   (1 << 1)

MASK_BUFFERS

#define MASK_BUFFERS   (MAX_BUFFERS-1)

MAX_BUFFERS

#define MAX_BUFFERS   64

MAX_PORTS

#define MAX_PORTS   1

NAME

#define NAME   "stream"

PARAM_FLAG_LOCKED

#define PARAM_FLAG_LOCKED   (1 << 0)

Function Documentation

pw_stream_add_listener()

SPA_EXPORT void pw_stream_add_listener	(	struct pw_stream *	stream,
		struct spa_hook *	listener,
		const struct pw_stream_events *	events,
		void *	data
	)

pw_stream_connect()

SPA_EXPORT int pw_stream_connect	(	struct pw_stream *	stream,
		enum pw_direction	direction,
		uint32_t	target_id,
		enum pw_stream_flags	flags,
		const struct spa_pod **	params,
		uint32_t	n_params
	)

References NAME, PW_DIRECTION_INPUT, pw_log::pw_log_debug, and res.

pw_stream_dequeue_buffer()

SPA_EXPORT struct pw_buffer* pw_stream_dequeue_buffer

(

struct pw_stream *

stream

)

Get a buffer that can be filled for playback streams or consumed for capture streams.

References res.

pw_stream_destroy()

SPA_EXPORT void pw_stream_destroy

(

struct pw_stream *

stream

)

References NAME, pw_log::pw_log_debug, and pw_stream::pw_stream_disconnect().

pw_stream_disconnect()

SPA_EXPORT int pw_stream_disconnect

(

struct pw_stream *

stream

)

References NAME, pw_core_disconnect(), pw_impl_node::pw_impl_node_destroy(), pw_impl_node_set_active(), pw_log::pw_log_debug, and pw_proxy::pw_proxy_destroy().

pw_stream_flush()

SPA_EXPORT int pw_stream_flush	(	struct pw_stream *	stream,
		bool	drain
	)

Flush a stream.

When drain is true, the drained callback will be called when all data is played or recorded

References pw_loop_invoke.

pw_stream_get_control()

SPA_EXPORT const struct pw_stream_control* pw_stream_get_control	(	struct pw_stream *	stream,
		uint32_t	id
	)

pw_stream_get_core()

SPA_EXPORT struct pw_core* pw_stream_get_core

(

struct pw_stream *

stream

)

pw_stream_get_name()

const SPA_EXPORT char* pw_stream_get_name

(

struct pw_stream *

stream

)

pw_stream_get_node_id()

SPA_EXPORT uint32_t pw_stream_get_node_id

(

struct pw_stream *

stream

)

pw_stream_get_properties()

SPA_EXPORT const struct pw_properties* pw_stream_get_properties

(

struct pw_stream *

stream

)

pw_stream_get_state()

SPA_EXPORT enum pw_stream_state pw_stream_get_state	(	struct pw_stream *	stream,
		const char **	error
	)

pw_stream_get_time()

SPA_EXPORT int pw_stream_get_time	(	struct pw_stream *	stream,
		struct pw_time *	time
	)

References pw_time::delay, NAME, pw_time::now, pw_log::pw_log_trace, pw_time::queued, pw_time::rate, pw_time::ticks, and stream::time.

pw_stream_new()

SPA_EXPORT struct pw_stream* pw_stream_new	(	struct pw_core *	core,
		const char *	name,
		struct pw_properties *	props
	)

pw_stream_new_simple()

SPA_EXPORT struct pw_stream* pw_stream_new_simple	(	struct pw_loop *	loop,
		const char *	name,
		struct pw_properties *	props,
		const struct pw_stream_events *	events,
		void *	data
	)

References pw_context_new(), pw_properties::pw_properties_new(), and res.

pw_stream_queue_buffer()

SPA_EXPORT int pw_stream_queue_buffer	(	struct pw_stream *	stream,
		struct pw_buffer *	buffer
	)

Submit a buffer for playback or recycle a buffer for capture.

References buffer::id, NAME, pw_log::pw_log_trace, and res.

pw_stream_set_active()

SPA_EXPORT int pw_stream_set_active	(	struct pw_stream *	stream,
		bool	active
	)

References NAME, pw_impl_node_set_active(), and pw_log::pw_log_debug.

pw_stream_set_control()

SPA_EXPORT int pw_stream_set_control	(	struct pw_stream *	stream,
		uint32_t	id,
		uint32_t	n_values,
		float *	values,
			...
	)

Set control values.

References NAME, pw_log::pw_log_debug, va_start(), and control::values.

pw_stream_set_error()

SPA_EXPORT int pw_stream_set_error	(	struct pw_stream *	stream,
		int	res,
		const char *	error,
			...
	)

References args, pw_proxy_error(), r, res, va_end(), and va_start().

pw_stream_state_as_string()

const SPA_EXPORT char* pw_stream_state_as_string

(

enum pw_stream_state

state

)

References PW_STREAM_STATE_CONNECTING, PW_STREAM_STATE_ERROR, PW_STREAM_STATE_PAUSED, PW_STREAM_STATE_STREAMING, and PW_STREAM_STATE_UNCONNECTED.

pw_stream_update_params()

SPA_EXPORT int pw_stream_update_params	(	struct pw_stream *	stream,
		const struct spa_pod **	params,
		uint32_t	n_params
	)

References NAME, pw_log::pw_log_debug, and res.

pw_stream_update_properties()

SPA_EXPORT int pw_stream_update_properties	(	struct pw_stream *	stream,
		const struct spa_dict *	dict
	)

References pw_impl_node_update_properties(), pw_properties::pw_properties_update(), and res.