5 #ifndef PIPEWIRE_STREAM_H
6 #define PIPEWIRE_STREAM_H
176 #include <spa/buffer/buffer.h>
177 #include <spa/param/param.h>
178 #include <spa/pod/command.h>
321 #include <pipewire/port.h>
326 #define PW_VERSION_STREAM_EVENTS 2
338 void (*
io_changed) (
void *data, uint32_t id,
void *area, uint32_t size);
void pw_stream_destroy(struct pw_stream *stream)
Destroy a stream.
Definition: stream.c:1677
#define pw_direction
The direction of a port.
Definition: port.h:46
uint64_t ticks
the ticks at now.
Definition: stream.h:304
Definition: properties.h:33
the stream is in error
Definition: stream.h:187
uint32_t avail_buffers
The number of buffers that can be dequeued.
Definition: stream.h:323
uint32_t n_values
number of values in array
Definition: stream.h:217
the application will allocate buffer memory.
Definition: stream.h:390
float * values
array of values
Definition: stream.h:216
int64_t now
the monotonic time in nanoseconds.
Definition: stream.h:296
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:350
A time structure.
Definition: stream.h:295
struct spa_dict dict
dictionary of key/values
Definition: properties.h:34
void(* add_buffer)(void *data, struct pw_buffer *buffer)
when a new buffer was created for this stream
Definition: stream.h:349
int pw_stream_flush(struct pw_stream *stream, bool drain)
Flush a stream.
Definition: stream.c:2485
Events for a stream.
Definition: stream.h:330
call process from the realtime thread.
Definition: stream.h:382
uint32_t queued_buffers
The number of buffers that are queued.
Definition: stream.h:322
#define SPA_DEPRECATED
Definition: defs.h:279
uint64_t queued
data queued in the stream, this is the sum of the size fields in the pw_buffer that are currently que...
Definition: stream.h:316
don't try to reconnect this stream when the sink/source is removed
Definition: stream.h:388
int pw_stream_trigger_process(struct pw_stream *stream)
Trigger a push/pull on the stream.
Definition: stream.c:2539
connection is in progress
Definition: stream.h:189
void pw_stream_add_listener(struct pw_stream *stream, struct spa_hook *listener, const struct pw_stream_events *events, void *data)
Definition: stream.c:1742
const char * pw_stream_get_name(struct pw_stream *stream)
Definition: stream.c:1769
try to automatically connect this stream
Definition: stream.h:375
int pw_stream_get_time(struct pw_stream *stream, struct pw_time *time)
Query the time on the stream, deprecated since 0.3.50, use pw_stream_get_time_n() to get the fields a...
Definition: stream.c:2333
void(* command)(void *data, const struct spa_command *command)
A command notify, Since 0.3.39:1.
Definition: stream.h:363
uint64_t buffered
for audio/raw streams, this contains the extra number of samples buffered in the resampler.
Definition: stream.h:319
paused
Definition: stream.h:190
int pw_stream_update_properties(struct pw_stream *stream, const struct spa_dict *dict)
Definition: stream.c:1781
the output stream will not be scheduled automatically but _trigger_process() needs to be called...
Definition: stream.h:393
float def
default value
Definition: stream.h:213
start the stream inactive, pw_stream_set_active() needs to be called explicitly
Definition: stream.h:377
bool pw_stream_is_driving(struct pw_stream *stream)
Check if the stream is driving.
Definition: stream.c:2502
int pw_stream_set_active(struct pw_stream *stream, bool active)
Activate or deactivate the stream.
Definition: stream.c:2306
pw_stream_state
The state of a stream.
Definition: stream.h:186
don't convert format
Definition: stream.h:385
void(* destroy)(void *data)
Definition: stream.h:335
int pw_stream_set_error(struct pw_stream *stream, int res, const char *error,...) 1(3
Set the stream in error state.
A Buffer.
Definition: buffer.h:92
uint64_t size
This field is set by the user and the sum of all queued buffer is returned in the time info...
Definition: stream.h:199
unconnected
Definition: stream.h:188
enum pw_stream_state pw_stream_get_state(struct pw_stream *stream, const char **error)
Definition: stream.c:1761
const struct pw_stream_control * pw_stream_get_control(struct pw_stream *stream, uint32_t id)
Get control values.
Definition: stream.c:2292
Buffers will not be dequeued/queued from the realtime process() function.
Definition: stream.h:398
void(* state_changed)(void *data, enum pw_stream_state old, enum pw_stream_state state, const char *error)
when the stream state changes
Definition: stream.h:337
be a driver
Definition: stream.h:381
const char * pw_stream_state_as_string(enum pw_stream_state state)
Convert a stream state to a readable string.
Definition: stream.c:1627
void(* remove_buffer)(void *data, struct pw_buffer *buffer)
when a buffer was destroyed for this stream
Definition: stream.h:351
void(* param_changed)(void *data, uint32_t id, const struct spa_pod *param)
when a parameter changed
Definition: stream.h:346
float max
max value
Definition: stream.h:215
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)
Connect a stream for input or output on port_path.
Definition: stream.c:1884
int pw_stream_disconnect(struct pw_stream *stream)
Disconnect stream.
Definition: stream.c:2156
void(* drained)(void *data)
The stream is drained.
Definition: stream.h:360
int64_t delay
delay to device.
Definition: stream.h:307
struct spa_buffer * buffer
the spa buffer
Definition: stream.h:197
uint64_t requested
For playback streams, this field contains the suggested amount of data to provide.
Definition: stream.h:203
void(* trigger_done)(void *data)
a trigger_process completed.
Definition: stream.h:366
int pw_stream_get_time_n(struct pw_stream *stream, struct pw_time *time, size_t size)
Query the time on the stream.
Definition: stream.c:2339
int int pw_stream_update_params(struct pw_stream *stream, const struct spa_pod **params, uint32_t n_params)
Update the param exposed on the stream.
Definition: stream.c:2190
void(* control_info)(void *data, uint32_t id, const struct pw_stream_control *control)
Notify information about a control.
Definition: stream.h:341
no flags
Definition: stream.h:374
require exclusive access to the device
Definition: stream.h:386
a buffer structure obtained from pw_stream_dequeue_buffer().
Definition: stream.h:196
int pw_stream_set_param(struct pw_stream *stream, uint32_t id, const struct spa_pod *param)
Set a parameter on the stream.
Definition: stream.c:2219
void(* process)(void *data)
when a buffer can be queued (for playback streams) or dequeued (for capture streams).
Definition: stream.h:357
mmap the buffers except DmaBuf
Definition: stream.h:380
struct pw_stream * pw_stream_new(struct pw_core *core, const char *name, struct pw_properties *props)
Create a new unconneced Stream.
Definition: stream.c:1561
uint32_t flags
extra flags (unused)
Definition: stream.h:212
uint32_t flags
extra flags
Definition: properties.h:35
const struct pw_properties * pw_stream_get_properties(struct pw_stream *stream)
Definition: stream.c:1775
uint32_t version
Definition: stream.h:333
pw_stream_flags
Extra flags that can be used in pw_stream_connect()
Definition: stream.h:373
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)
Definition: stream.c:1583
uint32_t max_values
max values that can be set on this control
Definition: stream.h:218
float min
min value
Definition: stream.h:214
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.
Definition: stream.c:2393
void(* io_changed)(void *data, uint32_t id, void *area, uint32_t size)
when io changed on the stream.
Definition: stream.h:344
streaming
Definition: stream.h:191
void * user_data
user data attached to the buffer
Definition: stream.h:198
uint32_t pw_stream_get_node_id(struct pw_stream *stream)
Get the node ID of the stream.
Definition: stream.c:2150
#define SPA_PRINTF_FUNC(fmt, arg1)
Definition: defs.h:273
int pw_stream_queue_buffer(struct pw_stream *stream, struct pw_buffer *buffer)
Submit a buffer for playback or recycle a buffer for capture.
Definition: stream.c:2421
struct pw_core * pw_stream_get_core(struct pw_stream *stream)
Definition: stream.c:1807
int pw_stream_set_control(struct pw_stream *stream, uint32_t id, uint32_t n_values, float *values,...)
Set control values.
Definition: stream.c:2231
Call process as soon as there is a buffer to dequeue.
Definition: stream.h:405