PipeWire 0.3.38
iter.h
Go to the documentation of this file.
1/* Simple Plugin API
2 *
3 * Copyright © 2018 Wim Taymans
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef SPA_POD_ITER_H
26#define SPA_POD_ITER_H
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32#include <errno.h>
33#include <sys/types.h>
34
35#include <spa/pod/pod.h>
36
43 struct spa_pod pod;
45 uint32_t offset;
46 uint32_t flags;
47};
48
49/* static */ inline bool spa_pod_is_inside(const void *pod, uint32_t size, const void *iter)
50{
51 return SPA_POD_BODY(iter) <= SPA_PTROFF(pod, size, void) &&
52 SPA_PTROFF(iter, SPA_POD_SIZE(iter), void) <= SPA_PTROFF(pod, size, void);
53}
54
55/* static */ inline void *spa_pod_next(const void *iter)
56{
57 return SPA_PTROFF(iter, SPA_ROUND_UP_N(SPA_POD_SIZE(iter), 8), void);
58}
59
60/* static */ inline struct spa_pod_prop *spa_pod_prop_first(const struct spa_pod_object_body *body)
61{
62 return SPA_PTROFF(body, sizeof(struct spa_pod_object_body), struct spa_pod_prop);
63}
64
65/* static */ inline bool spa_pod_prop_is_inside(const struct spa_pod_object_body *body,
66 uint32_t size, const struct spa_pod_prop *iter)
67{
68 return SPA_POD_CONTENTS(struct spa_pod_prop, iter) <= SPA_PTROFF(body, size, void) &&
69 SPA_PTROFF(iter, SPA_POD_PROP_SIZE(iter), void) <= SPA_PTROFF(body, size, void);
70}
71
72/* static */ inline struct spa_pod_prop *spa_pod_prop_next(const struct spa_pod_prop *iter)
73{
74 return SPA_PTROFF(iter, SPA_ROUND_UP_N(SPA_POD_PROP_SIZE(iter), 8), struct spa_pod_prop);
75}
76
77/* static */ inline struct spa_pod_control *spa_pod_control_first(const struct spa_pod_sequence_body *body)
78{
79 return SPA_PTROFF(body, sizeof(struct spa_pod_sequence_body), struct spa_pod_control);
80}
81
82/* static */ inline bool spa_pod_control_is_inside(const struct spa_pod_sequence_body *body,
83 uint32_t size, const struct spa_pod_control *iter)
84{
85 return SPA_POD_CONTENTS(struct spa_pod_control, iter) <= SPA_PTROFF(body, size, void) &&
86 SPA_PTROFF(iter, SPA_POD_CONTROL_SIZE(iter), void) <= SPA_PTROFF(body, size, void);
87}
88
89/* static */ inline struct spa_pod_control *spa_pod_control_next(const struct spa_pod_control *iter)
90{
91 return SPA_PTROFF(iter, SPA_ROUND_UP_N(SPA_POD_CONTROL_SIZE(iter), 8), struct spa_pod_control);
92}
93
94#define SPA_POD_ARRAY_BODY_FOREACH(body, _size, iter) \
95 for ((iter) = (__typeof__(iter))SPA_PTROFF((body), sizeof(struct spa_pod_array_body), void); \
96 (iter) < (__typeof__(iter))SPA_PTROFF((body), (_size), void); \
97 (iter) = (__typeof__(iter))SPA_PTROFF((iter), (body)->child.size, void))
98
99#define SPA_POD_ARRAY_FOREACH(obj, iter) \
100 SPA_POD_ARRAY_BODY_FOREACH(&(obj)->body, SPA_POD_BODY_SIZE(obj), iter)
101
102#define SPA_POD_CHOICE_BODY_FOREACH(body, _size, iter) \
103 for ((iter) = (__typeof__(iter))SPA_PTROFF((body), sizeof(struct spa_pod_choice_body), void); \
104 (iter) < (__typeof__(iter))SPA_PTROFF((body), (_size), void); \
105 (iter) = (__typeof__(iter))SPA_PTROFF((iter), (body)->child.size, void))
106
107#define SPA_POD_CHOICE_FOREACH(obj, iter) \
108 SPA_POD_CHOICE_BODY_FOREACH(&(obj)->body, SPA_POD_BODY_SIZE(obj), iter)
109
110#define SPA_POD_FOREACH(pod, size, iter) \
111 for ((iter) = (pod); \
112 spa_pod_is_inside(pod, size, iter); \
113 (iter) = (__typeof__(iter))spa_pod_next(iter))
114
115#define SPA_POD_STRUCT_FOREACH(obj, iter) \
116 SPA_POD_FOREACH(SPA_POD_BODY(obj), SPA_POD_BODY_SIZE(obj), iter)
117
118#define SPA_POD_OBJECT_BODY_FOREACH(body, size, iter) \
119 for ((iter) = spa_pod_prop_first(body); \
120 spa_pod_prop_is_inside(body, size, iter); \
121 (iter) = spa_pod_prop_next(iter))
122
123#define SPA_POD_OBJECT_FOREACH(obj, iter) \
124 SPA_POD_OBJECT_BODY_FOREACH(&(obj)->body, SPA_POD_BODY_SIZE(obj), iter)
125
126#define SPA_POD_SEQUENCE_BODY_FOREACH(body, size, iter) \
127 for ((iter) = spa_pod_control_first(body); \
128 spa_pod_control_is_inside(body, size, iter); \
129 (iter) = spa_pod_control_next(iter))
130
131#define SPA_POD_SEQUENCE_FOREACH(seq, iter) \
132 SPA_POD_SEQUENCE_BODY_FOREACH(&(seq)->body, SPA_POD_BODY_SIZE(seq), iter)
133
134
135/* static */ inline void *spa_pod_from_data(void *data, size_t maxsize, off_t offset, size_t size)
136{
137 void *pod;
138 if (size < sizeof(struct spa_pod) || offset + size > maxsize)
139 return NULL;
140 pod = SPA_PTROFF(data, offset, void);
141 if (SPA_POD_SIZE(pod) > size)
142 return NULL;
143 return pod;
144}
145
146/* static */ inline int spa_pod_is_none(const struct spa_pod *pod)
147{
148 return (SPA_POD_TYPE(pod) == SPA_TYPE_None);
149}
150
151/* static */ inline int spa_pod_is_bool(const struct spa_pod *pod)
152{
153 return (SPA_POD_TYPE(pod) == SPA_TYPE_Bool && SPA_POD_BODY_SIZE(pod) >= sizeof(int32_t));
154}
155
156/* static */ inline int spa_pod_get_bool(const struct spa_pod *pod, bool *value)
157{
158 if (!spa_pod_is_bool(pod))
159 return -EINVAL;
160 *value = !!SPA_POD_VALUE(struct spa_pod_bool, pod);
161 return 0;
162}
163
164/* static */ inline int spa_pod_is_id(const struct spa_pod *pod)
165{
166 return (SPA_POD_TYPE(pod) == SPA_TYPE_Id && SPA_POD_BODY_SIZE(pod) >= sizeof(uint32_t));
167}
168
169/* static */ inline int spa_pod_get_id(const struct spa_pod *pod, uint32_t *value)
170{
171 if (!spa_pod_is_id(pod))
172 return -EINVAL;
173 *value = SPA_POD_VALUE(struct spa_pod_id, pod);
174 return 0;
175}
176
177/* static */ inline int spa_pod_is_int(const struct spa_pod *pod)
178{
179 return (SPA_POD_TYPE(pod) == SPA_TYPE_Int && SPA_POD_BODY_SIZE(pod) >= sizeof(int32_t));
180}
181
182/* static */ inline int spa_pod_get_int(const struct spa_pod *pod, int32_t *value)
183{
184 if (!spa_pod_is_int(pod))
185 return -EINVAL;
186 *value = SPA_POD_VALUE(struct spa_pod_int, pod);
187 return 0;
188}
189
190/* static */ inline int spa_pod_is_long(const struct spa_pod *pod)
191{
192 return (SPA_POD_TYPE(pod) == SPA_TYPE_Long && SPA_POD_BODY_SIZE(pod) >= sizeof(int64_t));
193}
194
195/* static */ inline int spa_pod_get_long(const struct spa_pod *pod, int64_t *value)
196{
197 if (!spa_pod_is_long(pod))
198 return -EINVAL;
199 *value = SPA_POD_VALUE(struct spa_pod_long, pod);
200 return 0;
201}
202
203/* static */ inline int spa_pod_is_float(const struct spa_pod *pod)
204{
205 return (SPA_POD_TYPE(pod) == SPA_TYPE_Float && SPA_POD_BODY_SIZE(pod) >= sizeof(float));
206}
207
208/* static */ inline int spa_pod_get_float(const struct spa_pod *pod, float *value)
209{
210 if (!spa_pod_is_float(pod))
211 return -EINVAL;
212 *value = SPA_POD_VALUE(struct spa_pod_float, pod);
213 return 0;
214}
215
216/* static */ inline int spa_pod_is_double(const struct spa_pod *pod)
217{
218 return (SPA_POD_TYPE(pod) == SPA_TYPE_Double && SPA_POD_BODY_SIZE(pod) >= sizeof(double));
219}
220
221/* static */ inline int spa_pod_get_double(const struct spa_pod *pod, double *value)
222{
223 if (!spa_pod_is_double(pod))
224 return -EINVAL;
225 *value = SPA_POD_VALUE(struct spa_pod_double, pod);
226 return 0;
227}
228
229/* static */ inline int spa_pod_is_string(const struct spa_pod *pod)
230{
231 const char *s = (const char *)SPA_POD_CONTENTS(struct spa_pod_string, pod);
232 return (SPA_POD_TYPE(pod) == SPA_TYPE_String &&
233 SPA_POD_BODY_SIZE(pod) > 0 &&
234 s[SPA_POD_BODY_SIZE(pod)-1] == '\0');
235}
236
237/* static */ inline int spa_pod_get_string(const struct spa_pod *pod, const char **value)
238{
239 if (!spa_pod_is_string(pod))
240 return -EINVAL;
241 *value = (const char *)SPA_POD_CONTENTS(struct spa_pod_string, pod);
242 return 0;
243}
244
245/* static */ inline int spa_pod_copy_string(const struct spa_pod *pod, size_t maxlen, char *dest)
246{
247 const char *s = (const char *)SPA_POD_CONTENTS(struct spa_pod_string, pod);
248 if (!spa_pod_is_string(pod) || maxlen < 1)
249 return -EINVAL;
250 strncpy(dest, s, maxlen-1);
251 dest[maxlen-1]= '\0';
252 return 0;
253}
254
255/* static */ inline int spa_pod_is_bytes(const struct spa_pod *pod)
256{
257 return SPA_POD_TYPE(pod) == SPA_TYPE_Bytes;
258}
259
260/* static */ inline int spa_pod_get_bytes(const struct spa_pod *pod, const void **value, uint32_t *len)
261{
262 if (!spa_pod_is_bytes(pod))
263 return -EINVAL;
264 *value = (const void *)SPA_POD_CONTENTS(struct spa_pod_bytes, pod);
265 *len = SPA_POD_BODY_SIZE(pod);
266 return 0;
267}
268
269/* static */ inline int spa_pod_is_pointer(const struct spa_pod *pod)
270{
271 return (SPA_POD_TYPE(pod) == SPA_TYPE_Pointer &&
272 SPA_POD_BODY_SIZE(pod) >= sizeof(struct spa_pod_pointer_body));
273}
274
275/* static */ inline int spa_pod_get_pointer(const struct spa_pod *pod, uint32_t *type, const void **value)
276{
277 if (!spa_pod_is_pointer(pod))
278 return -EINVAL;
279 *type = ((struct spa_pod_pointer*)pod)->body.type;
280 *value = ((struct spa_pod_pointer*)pod)->body.value;
281 return 0;
282}
283
284/* static */ inline int spa_pod_is_fd(const struct spa_pod *pod)
285{
286 return (SPA_POD_TYPE(pod) == SPA_TYPE_Fd &&
287 SPA_POD_BODY_SIZE(pod) >= sizeof(int64_t));
288}
289
290/* static */ inline int spa_pod_get_fd(const struct spa_pod *pod, int64_t *value)
291{
292 if (!spa_pod_is_fd(pod))
293 return -EINVAL;
294 *value = SPA_POD_VALUE(struct spa_pod_fd, pod);
295 return 0;
296}
297
298/* static */ inline int spa_pod_is_rectangle(const struct spa_pod *pod)
299{
300 return (SPA_POD_TYPE(pod) == SPA_TYPE_Rectangle &&
301 SPA_POD_BODY_SIZE(pod) >= sizeof(struct spa_rectangle));
302}
303
304/* static */ inline int spa_pod_get_rectangle(const struct spa_pod *pod, struct spa_rectangle *value)
305{
307 return -EINVAL;
308 *value = SPA_POD_VALUE(struct spa_pod_rectangle, pod);
309 return 0;
310}
311
312/* static */ inline int spa_pod_is_fraction(const struct spa_pod *pod)
313{
314 return (SPA_POD_TYPE(pod) == SPA_TYPE_Fraction &&
315 SPA_POD_BODY_SIZE(pod) >= sizeof(struct spa_fraction));
316}
317
318/* static */ inline int spa_pod_get_fraction(const struct spa_pod *pod, struct spa_fraction *value)
319{
321 *value = SPA_POD_VALUE(struct spa_pod_fraction, pod);
322 return 0;
323}
324
325/* static */ inline int spa_pod_is_bitmap(const struct spa_pod *pod)
326{
327 return (SPA_POD_TYPE(pod) == SPA_TYPE_Bitmap &&
328 SPA_POD_BODY_SIZE(pod) >= sizeof(uint8_t));
329}
330
331/* static */ inline int spa_pod_is_array(const struct spa_pod *pod)
332{
333 return (SPA_POD_TYPE(pod) == SPA_TYPE_Array &&
334 SPA_POD_BODY_SIZE(pod) >= sizeof(struct spa_pod_array_body));
335}
336
337/* static */ inline void *spa_pod_get_array(const struct spa_pod *pod, uint32_t *n_values)
338{
340 *n_values = SPA_POD_ARRAY_N_VALUES(pod);
342}
343
344/* static */ inline uint32_t spa_pod_copy_array(const struct spa_pod *pod, uint32_t type,
345 void *values, uint32_t max_values)
346{
347 uint32_t n_values;
348 void *v = spa_pod_get_array(pod, &n_values);
349 if (v == NULL || max_values == 0 || SPA_POD_ARRAY_VALUE_TYPE(pod) != type)
350 return 0;
351 n_values = SPA_MIN(n_values, max_values);
352 memcpy(values, v, SPA_POD_ARRAY_VALUE_SIZE(pod) * n_values);
353 return n_values;
354}
355
356/* static */ inline int spa_pod_is_choice(const struct spa_pod *pod)
357{
358 return (SPA_POD_TYPE(pod) == SPA_TYPE_Choice &&
359 SPA_POD_BODY_SIZE(pod) >= sizeof(struct spa_pod_choice_body));
360}
361
362/* static */ inline struct spa_pod *spa_pod_get_values(const struct spa_pod *pod, uint32_t *n_vals, uint32_t *choice)
363{
364 if (pod->type == SPA_TYPE_Choice) {
365 *n_vals = SPA_POD_CHOICE_N_VALUES(pod);
366 if ((*choice = SPA_POD_CHOICE_TYPE(pod)) == SPA_CHOICE_None)
367 *n_vals = SPA_MIN(1u, SPA_POD_CHOICE_N_VALUES(pod));
368 return (struct spa_pod*)SPA_POD_CHOICE_CHILD(pod);
369 } else {
370 *n_vals = 1;
371 *choice = SPA_CHOICE_None;
372 return (struct spa_pod*)pod;
373 }
374}
375
376/* static */ inline int spa_pod_is_struct(const struct spa_pod *pod)
377{
378 return (SPA_POD_TYPE(pod) == SPA_TYPE_Struct);
379}
380
381/* static */ inline int spa_pod_is_object(const struct spa_pod *pod)
382{
383 return (SPA_POD_TYPE(pod) == SPA_TYPE_Object &&
384 SPA_POD_BODY_SIZE(pod) >= sizeof(struct spa_pod_object_body));
385}
386
387/* static */ inline bool spa_pod_is_object_type(const struct spa_pod *pod, uint32_t type)
388{
389 return (pod && spa_pod_is_object(pod) && SPA_POD_OBJECT_TYPE(pod) == type);
390}
391
392/* static */ inline bool spa_pod_is_object_id(const struct spa_pod *pod, uint32_t id)
393{
394 return (pod && spa_pod_is_object(pod) && SPA_POD_OBJECT_ID(pod) == id);
395}
396
397/* static */ inline int spa_pod_is_sequence(const struct spa_pod *pod)
398{
399 return (SPA_POD_TYPE(pod) == SPA_TYPE_Sequence &&
400 SPA_POD_BODY_SIZE(pod) >= sizeof(struct spa_pod_sequence_body));
401}
402
403/* static */ inline const struct spa_pod_prop *spa_pod_object_find_prop(const struct spa_pod_object *pod,
404 const struct spa_pod_prop *start, uint32_t key)
405{
406 const struct spa_pod_prop *first, *res;
407
408 first = spa_pod_prop_first(&pod->body);
409 start = start ? spa_pod_prop_next(start) : first;
410
411 for (res = start; spa_pod_prop_is_inside(&pod->body, pod->pod.size, res);
412 res = spa_pod_prop_next(res)) {
413 if (res->key == key)
414 return res;
415 }
416 for (res = first; res != start; res = spa_pod_prop_next(res)) {
417 if (res->key == key)
418 return res;
419 }
420 return NULL;
421}
422
423/* static */ inline const struct spa_pod_prop *spa_pod_find_prop(const struct spa_pod *pod,
424 const struct spa_pod_prop *start, uint32_t key)
425{
426 if (!spa_pod_is_object(pod))
427 return NULL;
428 return spa_pod_object_find_prop((const struct spa_pod_object *)pod, start, key);
429}
430
431/* static */ inline int spa_pod_object_fixate(struct spa_pod_object *pod)
432{
433 struct spa_pod_prop *res;
434 SPA_POD_OBJECT_FOREACH(pod, res) {
435 if (res->value.type == SPA_TYPE_Choice &&
437 ((struct spa_pod_choice*)&res->value)->body.type = SPA_CHOICE_None;
438 }
439 return 0;
440}
441
442/* static */ inline int spa_pod_fixate(struct spa_pod *pod)
443{
445 return -EINVAL;
446 return spa_pod_object_fixate((struct spa_pod_object *)pod);
447}
448
453#ifdef __cplusplus
454} /* extern "C" */
455#endif
456
457#endif /* SPA_POD_H */
int spa_pod_get_pointer(const struct spa_pod *pod, uint32_t *type, const void **value)
Definition: iter.h:275
struct spa_pod_control * spa_pod_control_first(const struct spa_pod_sequence_body *body)
Definition: iter.h:77
int spa_pod_is_none(const struct spa_pod *pod)
Definition: iter.h:146
int spa_pod_is_bool(const struct spa_pod *pod)
Definition: iter.h:151
bool spa_pod_is_object_id(const struct spa_pod *pod, uint32_t id)
Definition: iter.h:392
int spa_pod_get_id(const struct spa_pod *pod, uint32_t *value)
Definition: iter.h:169
int spa_pod_is_rectangle(const struct spa_pod *pod)
Definition: iter.h:298
int spa_pod_is_long(const struct spa_pod *pod)
Definition: iter.h:190
bool spa_pod_is_object_type(const struct spa_pod *pod, uint32_t type)
Definition: iter.h:387
int spa_pod_is_int(const struct spa_pod *pod)
Definition: iter.h:177
const struct spa_pod_prop * spa_pod_find_prop(const struct spa_pod *pod, const struct spa_pod_prop *start, uint32_t key)
Definition: iter.h:423
void * spa_pod_get_array(const struct spa_pod *pod, uint32_t *n_values)
Definition: iter.h:337
struct spa_pod_prop * spa_pod_prop_first(const struct spa_pod_object_body *body)
Definition: iter.h:60
int spa_pod_object_fixate(struct spa_pod_object *pod)
Definition: iter.h:431
#define SPA_POD_VALUE(type, pod)
Definition: pod/pod.h:55
int spa_pod_fixate(struct spa_pod *pod)
Definition: iter.h:442
int spa_pod_is_string(const struct spa_pod *pod)
Definition: iter.h:229
int spa_pod_is_double(const struct spa_pod *pod)
Definition: iter.h:216
#define SPA_POD_OBJECT_FOREACH(obj, iter)
Definition: iter.h:123
#define SPA_POD_BODY(pod)
Definition: pod/pod.h:47
int spa_pod_is_choice(const struct spa_pod *pod)
Definition: iter.h:356
const struct spa_pod_prop * spa_pod_object_find_prop(const struct spa_pod_object *pod, const struct spa_pod_prop *start, uint32_t key)
Definition: iter.h:403
#define SPA_POD_TYPE(pod)
Definition: pod/pod.h:41
int spa_pod_get_fd(const struct spa_pod *pod, int64_t *value)
Definition: iter.h:290
int spa_pod_is_id(const struct spa_pod *pod)
Definition: iter.h:164
#define SPA_POD_BODY_SIZE(pod)
Definition: pod/pod.h:40
int spa_pod_get_bool(const struct spa_pod *pod, bool *value)
Definition: iter.h:156
int spa_pod_get_fraction(const struct spa_pod *pod, struct spa_fraction *value)
Definition: iter.h:318
uint32_t spa_pod_copy_array(const struct spa_pod *pod, uint32_t type, void *values, uint32_t max_values)
Definition: iter.h:344
struct spa_pod_control * spa_pod_control_next(const struct spa_pod_control *iter)
Definition: iter.h:89
int spa_pod_get_double(const struct spa_pod *pod, double *value)
Definition: iter.h:221
#define SPA_POD_ARRAY_VALUE_SIZE(arr)
Definition: pod/pod.h:118
int spa_pod_get_float(const struct spa_pod *pod, float *value)
Definition: iter.h:208
#define SPA_POD_CONTROL_SIZE(ev)
Definition: pod/pod.h:216
int spa_pod_is_bitmap(const struct spa_pod *pod)
Definition: iter.h:325
#define SPA_POD_CONTENTS(type, pod)
Definition: pod/pod.h:45
void * spa_pod_from_data(void *data, size_t maxsize, off_t offset, size_t size)
Definition: iter.h:135
#define SPA_POD_PROP_SIZE(prop)
Definition: pod/pod.h:196
int spa_pod_is_fd(const struct spa_pod *pod)
Definition: iter.h:284
int spa_pod_get_bytes(const struct spa_pod *pod, const void **value, uint32_t *len)
Definition: iter.h:260
int spa_pod_get_rectangle(const struct spa_pod *pod, struct spa_rectangle *value)
Definition: iter.h:304
int spa_pod_is_struct(const struct spa_pod *pod)
Definition: iter.h:376
#define SPA_POD_OBJECT_TYPE(obj)
Definition: pod/pod.h:166
#define SPA_POD_OBJECT_ID(obj)
Definition: pod/pod.h:167
#define SPA_POD_ARRAY_VALUE_TYPE(arr)
Definition: pod/pod.h:117
bool spa_pod_is_inside(const void *pod, uint32_t size, const void *iter)
Definition: iter.h:49
int spa_pod_is_fraction(const struct spa_pod *pod)
Definition: iter.h:312
#define SPA_POD_CHOICE_N_VALUES(choice)
Definition: pod/pod.h:137
int spa_pod_is_float(const struct spa_pod *pod)
Definition: iter.h:203
int spa_pod_is_object(const struct spa_pod *pod)
Definition: iter.h:381
int spa_pod_is_pointer(const struct spa_pod *pod)
Definition: iter.h:269
int spa_pod_get_long(const struct spa_pod *pod, int64_t *value)
Definition: iter.h:195
struct spa_pod * spa_pod_get_values(const struct spa_pod *pod, uint32_t *n_vals, uint32_t *choice)
Definition: iter.h:362
int spa_pod_get_string(const struct spa_pod *pod, const char **value)
Definition: iter.h:237
void * spa_pod_next(const void *iter)
Definition: iter.h:55
int spa_pod_is_array(const struct spa_pod *pod)
Definition: iter.h:331
#define SPA_POD_SIZE(pod)
Definition: pod/pod.h:42
int spa_pod_copy_string(const struct spa_pod *pod, size_t maxlen, char *dest)
Definition: iter.h:245
struct spa_pod_prop * spa_pod_prop_next(const struct spa_pod_prop *iter)
Definition: iter.h:72
bool spa_pod_prop_is_inside(const struct spa_pod_object_body *body, uint32_t size, const struct spa_pod_prop *iter)
Definition: iter.h:65
int spa_pod_is_sequence(const struct spa_pod *pod)
Definition: iter.h:397
#define SPA_POD_CHOICE_CHILD(choice)
Definition: pod/pod.h:132
int spa_pod_get_int(const struct spa_pod *pod, int32_t *value)
Definition: iter.h:182
#define SPA_POD_ARRAY_N_VALUES(arr)
Definition: pod/pod.h:119
int spa_pod_is_bytes(const struct spa_pod *pod)
Definition: iter.h:255
#define SPA_POD_CHOICE_TYPE(choice)
Definition: pod/pod.h:133
bool spa_pod_control_is_inside(const struct spa_pod_sequence_body *body, uint32_t size, const struct spa_pod_control *iter)
Definition: iter.h:82
#define SPA_POD_ARRAY_VALUES(arr)
Definition: pod/pod.h:120
@ SPA_CHOICE_None
no choice, first value is current
Definition: pod/pod.h:141
@ SPA_TYPE_Int
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:48
@ SPA_TYPE_Rectangle
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:54
@ SPA_TYPE_Long
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:49
@ SPA_TYPE_Bool
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:46
@ SPA_TYPE_Bytes
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:53
@ SPA_TYPE_Bitmap
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:56
@ SPA_TYPE_Object
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:59
@ SPA_TYPE_Float
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:50
@ SPA_TYPE_Fraction
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:55
@ SPA_TYPE_None
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:45
@ SPA_TYPE_Sequence
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:60
@ SPA_TYPE_Double
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:51
@ SPA_TYPE_Id
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:47
@ SPA_TYPE_Choice
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:63
@ SPA_TYPE_Pointer
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:61
@ SPA_TYPE_Array
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:57
@ SPA_TYPE_String
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:52
@ SPA_TYPE_Fd
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:62
@ SPA_TYPE_Struct
Definition: aarch64-kylin-linux-gnu/doc/spa/utils/type.h:58
#define SPA_MIN(a, b)
Definition: defs.h:128
#define SPA_ROUND_UP_N(num, align)
Definition: defs.h:230
#define spa_return_val_if_fail(expr, val)
Definition: defs.h:258
#define SPA_FLAG_IS_SET(field, flag)
Definition: defs.h:73
#define SPA_PTROFF(ptr_, offset_, type_)
Return the address (buffer + offset) as pointer of type.
Definition: defs.h:164
int(* start)(struct sm_media_session *sess)
Definition: media-session.c:2396
#define SPA_POD_PROP_FLAG_DONT_FIXATE
choices need no fixation
Definition: pod/pod.h:210
user data to add to an object
Definition: filter.c:75
Definition: defs.h:104
Definition: pod/pod.h:122
Definition: pod/pod.h:57
Definition: pod/pod.h:96
Definition: pod/pod.h:148
Definition: pod/pod.h:156
struct spa_pod pod
Definition: pod/pod.h:157
Definition: pod/pod.h:219
struct spa_pod value
control value, depends on type
Definition: pod/pod.h:222
uint32_t type
type of control, enum spa_control_type
Definition: pod/pod.h:221
uint32_t offset
media offset
Definition: pod/pod.h:220
Definition: pod/pod.h:86
Definition: pod/pod.h:191
Definition: pod/pod.h:80
Definition: pod/pod.h:106
Definition: iter.h:42
struct spa_pod pod
Definition: iter.h:43
uint32_t offset
Definition: iter.h:45
struct spa_pod_frame * parent
Definition: iter.h:44
uint32_t flags
Definition: iter.h:46
Definition: pod/pod.h:63
Definition: pod/pod.h:69
Definition: pod/pod.h:75
Definition: pod/pod.h:169
Definition: pod/pod.h:175
struct spa_pod pod
Definition: pod/pod.h:176
struct spa_pod_object_body body
Definition: pod/pod.h:177
Definition: pod/pod.h:180
Definition: pod/pod.h:186
struct spa_pod pod
Definition: pod/pod.h:187
Definition: pod/pod.h:199
uint32_t key
key of property, list of valid keys depends on the object type
Definition: pod/pod.h:200
uint32_t flags
flags for property
Definition: pod/pod.h:211
struct spa_pod value
Definition: pod/pod.h:212
Definition: pod/pod.h:101
Definition: pod/pod.h:226
Definition: pod/pod.h:91
Definition: pod/pod.h:50
uint32_t type
Definition: pod/pod.h:52
uint32_t size
Definition: pod/pod.h:51
Definition: defs.h:86