25 #ifndef PIPEWIRE_STREAM_H 26 #define PIPEWIRE_STREAM_H 152 #include <spa/buffer/buffer.h> 153 #include <spa/param/param.h> 185 struct spa_fraction rate;
201 #define PW_VERSION_STREAM_EVENTS 0 213 void (*io_changed) (
void *data, uint32_t
id,
void *area, uint32_t
size);
215 void (*param_changed) (
void *data, uint32_t
id,
const struct spa_pod *
param);
226 void (*process) (
void *data);
229 void (*drained) (
void *data);
276 struct spa_hook *listener,
302 const struct spa_pod **params,
318 const char *error, ... ) SPA_PRINTF_FUNC(3, 4);
328 const struct spa_pod **params,
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:1806
uint64_t ticks
the ticks at now.
Definition: stream.h:186
A collection of key/value pairs.
Definition: properties.h:45
static uint32_t int int res
Definition: core.h:325
require exclusive access to the device
Definition: stream.h:249
uint32_t n_values
number of values in array
Definition: stream.h:178
paused
Definition: stream.h:160
float * values
array of values
Definition: stream.h:177
try to automatically connect this stream
Definition: stream.h:239
const char * name
name of the control
Definition: stream.h:172
int64_t now
the monotonic time
Definition: stream.h:184
PipeWire loop object provides an implementation of the spa loop interfaces.
Definition: loop.h:41
A time structure.
Definition: stream.h:183
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)
Definition: stream.c:1405
struct spa_dict dict
dictionary of key/values
Definition: properties.h:46
SPA_EXPORT struct pw_stream * pw_stream_new(struct pw_core *core, const char *name, struct pw_properties *props)
Definition: stream.c:1161
Events for a stream.
Definition: stream.h:200
pw_stream_state
The state of a stream.
Definition: stream.h:156
mmap the buffers
Definition: stream.h:244
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:191
SPA_EXPORT int pw_stream_get_time(struct pw_stream *stream, struct pw_time *time)
Definition: stream.c:1742
streaming
Definition: stream.h:161
struct pw_core * pw_stream_get_core(struct pw_stream *stream)
Definition: stream.c:1333
PipeWire stream object class.
SPA_EXPORT int pw_stream_set_active(struct pw_stream *stream, bool active)
Definition: stream.c:1732
enum pw_stream_state pw_stream_get_state(struct pw_stream *stream, const char **error)
Definition: stream.c:1296
don't convert format
Definition: stream.h:248
don't try to reconnect this stream when the sink/source is removed
Definition: stream.h:251
be a driver
Definition: stream.h:245
the stream is in error
Definition: stream.h:157
float def
default value
Definition: stream.h:174
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:1183
int pw_stream_set_control(struct pw_stream *stream, uint32_t id, uint32_t n_values, float *values,...)
Set control values.
Definition: stream.c:1666
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:1788
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:167
start the stream inactive, pw_stream_set_active() needs to be called explicitly
Definition: stream.h:241
const char * pw_stream_get_name(struct pw_stream *stream)
Definition: stream.c:1304
const struct pw_properties * pw_stream_get_properties(struct pw_stream *stream)
Definition: stream.c:1310
pw_stream_flags
Extra flags that can be used in pw_stream_connect()
Definition: stream.h:237
int pw_stream_flush(struct pw_stream *stream, bool drain)
Flush a stream.
Definition: stream.c:1851
void pw_stream_add_listener(struct pw_stream *stream, struct spa_hook *listener, const struct pw_stream_events *events, void *data)
Definition: stream.c:1287
#define pw_direction
Definition: port.h:47
int pw_stream_update_properties(struct pw_stream *stream, const struct spa_dict *dict)
Definition: stream.c:1316
float max
max value
Definition: stream.h:176
call process from the realtime thread
Definition: stream.h:246
int64_t delay
delay to device, add to ticks to get the time of the device.
Definition: stream.h:188
struct spa_buffer * buffer
the spa buffer
Definition: stream.h:165
static uint32_t id
Definition: core.h:325
connection is in progress
Definition: stream.h:159
int pw_stream_set_error(struct pw_stream *stream, int res, const char *error,...) SPA_PRINTF_FUNC(3
Set the stream in error state.
SPA_EXPORT int pw_stream_update_params(struct pw_stream *stream, const struct spa_pod **params, uint32_t n_params)
Definition: stream.c:1649
the application will allocate buffer memory.
Definition: stream.h:253
SPA_EXPORT void pw_stream_destroy(struct pw_stream *stream)
Definition: stream.c:1246
uint32_t flags
extra flags (unused)
Definition: stream.h:173
uint32_t flags
extra flags
Definition: properties.h:47
uint32_t version
Definition: stream.h:202
unconnected
Definition: stream.h:158
uint32_t max_values
max values that can be set on this control
Definition: stream.h:179
float min
min value
Definition: stream.h:175
void * user_data
user data attached to the buffer
Definition: stream.h:166
no flags
Definition: stream.h:238
SPA_EXPORT int pw_stream_disconnect(struct pw_stream *stream)
Definition: stream.c:1595
SPA_EXPORT uint32_t pw_stream_get_node_id(struct pw_stream *stream)
Definition: stream.c:1589
SPA_EXPORT const char * pw_stream_state_as_string(enum pw_stream_state state)
Definition: stream.c:1228