5#ifndef PIPEWIRE_FILTER_H
6#define PIPEWIRE_FILTER_H
60#define PW_VERSION_FILTER_EVENTS 1
70 uint32_t id,
void *area, uint32_t size);
73 uint32_t id,
const struct spa_pod *param);
181 size_t port_data_size,
const char * pw_filter_get_name(struct pw_filter *filter)
Definition filter.c:1481
int pw_filter_remove_port(void *port_data)
remove a port from the filter
Definition filter.c:1854
pw_filter_flags
Extra flags that can be used in pw_filter_connect()
Definition filter.h:102
const char * pw_filter_state_as_string(enum pw_filter_state state)
Convert a filter state to a readable string
Definition filter.c:1326
int pw_filter_connect(struct pw_filter *filter, enum pw_filter_flags flags, const struct spa_pod **params, uint32_t n_params)
Connect a filter for processing.
Definition filter.c:1548
struct pw_core * pw_filter_get_core(struct pw_filter *filter)
Definition filter.c:1475
void pw_filter_add_listener(struct pw_filter *filter, struct spa_hook *listener, const struct pw_filter_events *events, void *data)
Definition filter.c:1449
enum pw_filter_state pw_filter_get_state(struct pw_filter *filter, const char **error)
Definition filter.c:1467
uint32_t pw_filter_get_node_id(struct pw_filter *filter)
Get the node ID of the filter.
Definition filter.c:1699
int pw_filter_queue_buffer(void *port_data, struct pw_buffer *buffer)
Submit a buffer for playback or recycle a buffer for capture.
Definition filter.c:1994
uint64_t pw_filter_get_nsec(struct pw_filter *filter)
Get the current time in nanoseconds.
Definition filter.c:1961
pw_filter_port_flags
Definition filter.h:127
int pw_filter_trigger_process(struct pw_filter *filter)
Trigger a push/pull on the filter.
Definition filter.c:2098
int pw_filter_disconnect(struct pw_filter *filter)
Disconnect filter
Definition filter.c:1705
pw_filter_state
The state of a filter
Definition filter.h:42
struct pw_filter * pw_filter_new(struct pw_core *core, const char *name, struct pw_properties *props)
Create a new unconnected Filter.
Definition filter.c:1259
int pw_filter_set_active(struct pw_filter *filter, bool active)
Activate or deactivate the filter
Definition filter.c:1920
struct pw_loop * pw_filter_get_data_loop(struct pw_filter *filter)
Get the data loop that is doing the processing of this filter.
Definition filter.c:1969
void * pw_filter_add_port(struct pw_filter *filter, enum pw_direction direction, enum pw_filter_port_flags flags, size_t port_data_size, struct pw_properties *props, const struct spa_pod **params, uint32_t n_params)
add a port to the filter, returns user data of port_data_size.
Definition filter.c:1780
int pw_filter_get_time(struct pw_filter *filter, struct pw_time *time)
Query the time on the filter, deprecated, use the spa_io_position in the process() method for timing ...
Definition filter.c:1938
struct pw_buffer * pw_filter_dequeue_buffer(void *port_data)
Get a buffer that can be filled for output ports or consumed for input ports.
Definition filter.c:1976
bool pw_filter_is_driving(struct pw_filter *filter)
Check if the filter is driving.
Definition filter.c:2063
bool pw_filter_is_lazy(struct pw_filter *filter)
Check if the graph is using lazy scheduling.
Definition filter.c:2069
int pw_filter_flush(struct pw_filter *filter, bool drain)
Flush a filter.
Definition filter.c:2054
int pw_filter_set_error(struct pw_filter *filter, int res, const char *error,...)
Set the filter in error state.
Definition filter.c:1866
const struct pw_properties * pw_filter_get_properties(struct pw_filter *filter, void *port_data)
get properties, port_data of NULL will give global properties
Definition filter.c:1487
int pw_filter_update_params(struct pw_filter *filter, void *port_data, const struct spa_pod **params, uint32_t n_params)
Update params, use NULL port_data for global filter params.
Definition filter.c:1892
int pw_filter_update_properties(struct pw_filter *filter, void *port_data, const struct spa_dict *dict)
Update properties, use NULL port_data for global filter properties.
Definition filter.c:1500
void pw_filter_destroy(struct pw_filter *filter)
Destroy a filter
Definition filter.c:1385
void * pw_filter_get_dsp_buffer(void *port_data, uint32_t n_samples)
Get a data pointer to the buffer data.
Definition filter.c:2003
struct pw_filter * pw_filter_new_simple(struct pw_loop *loop, const char *name, struct pw_properties *props, const struct pw_filter_events *events, void *data)
Definition filter.c:1281
@ PW_FILTER_FLAG_NONE
no flags
Definition filter.h:103
@ PW_FILTER_FLAG_TRIGGER
the filter will not be scheduled automatically but _trigger_process() needs to be called.
Definition filter.h:113
@ PW_FILTER_FLAG_CUSTOM_LATENCY
don't call the default latency algorithm but emit the param_changed event for the ports when Latency ...
Definition filter.h:110
@ PW_FILTER_FLAG_INACTIVE
start the filter inactive, pw_filter_set_active() needs to be called explicitly
Definition filter.h:104
@ PW_FILTER_FLAG_RT_PROCESS
call process from the realtime thread
Definition filter.h:108
@ PW_FILTER_FLAG_ASYNC
Buffers will not be dequeued/queued from the realtime process() function.
Definition filter.h:118
@ PW_FILTER_FLAG_DRIVER
be a driver
Definition filter.h:107
@ PW_FILTER_PORT_FLAG_ALLOC_BUFFERS
the application will allocate buffer memory.
Definition filter.h:131
@ PW_FILTER_PORT_FLAG_MAP_BUFFERS
mmap the buffers except DmaBuf that is not explicitly marked as mappable.
Definition filter.h:129
@ PW_FILTER_PORT_FLAG_NONE
no flags
Definition filter.h:128
@ PW_FILTER_STATE_STREAMING
filter is streaming
Definition filter.h:47
@ PW_FILTER_STATE_ERROR
the stream is in error
Definition filter.h:43
@ PW_FILTER_STATE_UNCONNECTED
unconnected
Definition filter.h:44
@ PW_FILTER_STATE_CONNECTING
connection is in progress
Definition filter.h:45
@ PW_FILTER_STATE_PAUSED
filter is connected and paused
Definition filter.h:46
#define pw_direction
The direction of a port.
Definition port.h:46
#define SPA_DEPRECATED
Definition defs.h:301
#define SPA_PRINTF_FUNC(fmt, arg1)
Definition defs.h:295
a buffer structure obtained from pw_stream_dequeue_buffer().
Definition stream.h:212
uint64_t size
This field is set by the user and the sum of all queued buffers is returned in the time info.
Definition stream.h:220
struct spa_buffer * buffer
the spa buffer
Definition stream.h:213
void * user_data
user data attached to the buffer.
Definition stream.h:214
Events for a filter.
Definition filter.h:64
void(* process)(void *data, struct spa_io_position *position)
do processing.
Definition filter.h:89
void(* param_changed)(void *data, void *port_data, uint32_t id, const struct spa_pod *param)
when a parameter changed on a port of the filter (when port_data is NULL).
Definition filter.h:78
void(* io_changed)(void *data, void *port_data, uint32_t id, void *area, uint32_t size)
when io changed on a port of the filter (when port_data is NULL).
Definition filter.h:75
uint32_t version
Definition filter.h:67
void(* drained)(void *data)
The filter is drained.
Definition filter.h:92
void(* command)(void *data, const struct spa_command *command)
A command notify, Since 0.3.39:1.
Definition filter.h:95
void(* remove_buffer)(void *data, void *port_data, struct pw_buffer *buffer)
when a buffer was destroyed for a port
Definition filter.h:84
void(* add_buffer)(void *data, void *port_data, struct pw_buffer *buffer)
when a new buffer was created for a port
Definition filter.h:82
void(* destroy)(void *data)
Definition filter.h:69
void(* state_changed)(void *data, enum pw_filter_state old, enum pw_filter_state state, const char *error)
when the filter state changes
Definition filter.h:71
Definition properties.h:34
struct spa_dict dict
dictionary of key/values
Definition properties.h:35
A time structure.
Definition stream.h:320
A Buffer.
Definition buffer.h:100
A hook, contains the structure with functions and the data passed to the functions.
Definition hook.h:350
The position information adds extra meaning to the raw clock times.
Definition io.h:314