PipeWire: spa/pod/filter.h Source File

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filter.h
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1/* Simple Plugin API */
2/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3/* SPDX-License-Identifier: MIT */
4
5#ifndef SPA_POD_FILTER_H
6#define SPA_POD_FILTER_H
7
8#ifdef __cplusplus
9extern "C" {
10#endif
11
12#include <errno.h>
13#include <stdint.h>
14#include <stddef.h>
15#include <stdio.h>
16#include <string.h>
17
18#include <spa/param/props.h>
19#include <spa/pod/iter.h>
20#include <spa/pod/builder.h>
21#include <spa/pod/compare.h>
22
23#ifndef SPA_API_POD_FILTER
24 #ifdef SPA_API_IMPL
25 #define SPA_API_POD_FILTER SPA_API_IMPL
26 #else
27 #define SPA_API_POD_FILTER static inline
28 #endif
29#endif
30
35
36 SPA_API_POD_FILTER int spa_pod_choice_fix_default(struct spa_pod_choice *choice)
37{
38 void *val, *alt;
39 int i, nvals;
40 uint32_t type, size;
41
42 nvals = SPA_POD_CHOICE_N_VALUES(choice);
43 type = SPA_POD_CHOICE_VALUE_TYPE(choice);
44 size = SPA_POD_CHOICE_VALUE_SIZE(choice);
45 alt = val = SPA_POD_CHOICE_VALUES(choice);
46
47 switch (choice->body.type) {
48 case SPA_CHOICE_None:
49 break;
50 case SPA_CHOICE_Range:
51 case SPA_CHOICE_Step:
52 if (nvals > 1) {
53 alt = SPA_PTROFF(alt, size, void);
54 if (spa_pod_compare_value(type, val, alt, size) < 0)
55 memcpy(val, alt, size);
56 }
57 if (nvals > 2) {
58 alt = SPA_PTROFF(alt, size, void);
59 if (spa_pod_compare_value(type, val, alt, size) > 0)
60 memcpy(val, alt, size);
61 }
62 break;
63 case SPA_CHOICE_Flags:
64 case SPA_CHOICE_Enum:
65 {
66 void *best = NULL;
67
68 for (i = 1; i < nvals; i++) {
69 alt = SPA_PTROFF(alt, size, void);
70 if (spa_pod_compare_value(type, val, alt, size) == 0) {
71 best = alt;
72 break;
73 }
74 if (best == NULL)
75 best = alt;
76 }
77 if (best)
78 memcpy(val, best, size);
79
80 if (nvals <= 1)
81 choice->body.type = SPA_CHOICE_None;
82 break;
83 }
84 }
85 return 0;
86}
87
88 SPA_API_POD_FILTER int spa_pod_filter_flags_value(struct spa_pod_builder *b,
89 uint32_t type, const void *r1, const void *r2, uint32_t size SPA_UNUSED)
90{
91 switch (type) {
92 case SPA_TYPE_Int:
93 {
94 int32_t val = (*(int32_t *) r1) & (*(int32_t *) r2);
95 if (val == 0)
96 return 0;
97 spa_pod_builder_int(b, val);
98 break;
99 }
100 case SPA_TYPE_Long:
101 {
102 int64_t val = (*(int64_t *) r1) & (*(int64_t *) r2);
103 if (val == 0)
104 return 0;
105 spa_pod_builder_long(b, val);
106 break;
107 }
108 default:
109 return -ENOTSUP;
110 }
111 return 1;
112}
113
114 SPA_API_POD_FILTER int spa_pod_filter_is_step_of(uint32_t type, const void *r1,
115 const void *r2, uint32_t size SPA_UNUSED)
116{
117 switch (type) {
118 case SPA_TYPE_Int:
119 return *(int32_t *) r1 % *(int32_t *) r2 == 0;
120 case SPA_TYPE_Long:
121 return *(int64_t *) r1 % *(int64_t *) r2 == 0;
122 case SPA_TYPE_Rectangle:
123 {
124 const struct spa_rectangle *rec1 = (struct spa_rectangle *) r1,
125 *rec2 = (struct spa_rectangle *) r2;
126
127 return (rec1->width % rec2->width == 0 &&
128 rec1->height % rec2->height == 0);
129 }
130 default:
131 return -ENOTSUP;
132 }
133 return 0;
134}
135
136 SPA_API_POD_FILTER int
137 spa_pod_filter_prop(struct spa_pod_builder *b,
138 const struct spa_pod_prop *p1,
139 const struct spa_pod_prop *p2)
140{
141 const struct spa_pod *v1, *v2;
142 struct spa_pod_choice *nc;
143 uint32_t j, k, nalt1, nalt2;
144 void *alt1, *alt2, *a1, *a2;
145 uint32_t type, size, p1c, p2c;
146 struct spa_pod_frame f;
147
148 v1 = spa_pod_get_values(&p1->value, &nalt1, &p1c);
149 alt1 = SPA_POD_BODY(v1);
150 v2 = spa_pod_get_values(&p2->value, &nalt2, &p2c);
151 alt2 = SPA_POD_BODY(v2);
152
153 type = v1->type;
154 size = v1->size;
155
156 /* incompatible property types */
157 if (type != v2->type || size != v2->size || p1->key != p2->key)
158 return -EINVAL;
159
160 if (p1c == SPA_CHOICE_None || p1c == SPA_CHOICE_Flags) {
161 nalt1 = 1;
162 } else {
163 alt1 = SPA_PTROFF(alt1, size, void);
164 nalt1--;
165 }
166
167 if (p2c == SPA_CHOICE_None || p2c == SPA_CHOICE_Flags) {
168 nalt2 = 1;
169 } else {
170 alt2 = SPA_PTROFF(alt2, size, void);
171 nalt2--;
172 }
173
174 /* start with copying the property */
175 spa_pod_builder_prop(b, p1->key, p1->flags & p2->flags);
176 spa_pod_builder_push_choice(b, &f, 0, 0);
177 nc = (struct spa_pod_choice*)spa_pod_builder_frame(b, &f);
178
179 /* default value */
180 spa_pod_builder_primitive(b, v1);
181
182 if ((p1c == SPA_CHOICE_None && p2c == SPA_CHOICE_None) ||
183 (p1c == SPA_CHOICE_None && p2c == SPA_CHOICE_Enum) ||
184 (p1c == SPA_CHOICE_Enum && p2c == SPA_CHOICE_None) ||
185 (p1c == SPA_CHOICE_Enum && p2c == SPA_CHOICE_Enum)) {
186 int n_copied = 0;
187 /* copy all equal values but don't copy the default value again */
188 for (j = 0, a1 = alt1; j < nalt1; j++, a1 = SPA_PTROFF(a1, size, void)) {
189 for (k = 0, a2 = alt2; k < nalt2; k++, a2 = SPA_PTROFF(a2,size,void)) {
190 if (spa_pod_compare_value(type, a1, a2, size) == 0) {
191 if (p1c == SPA_CHOICE_Enum || j > 0)
192 spa_pod_builder_raw(b, a1, size);
193 n_copied++;
194 }
195 }
196 }
197 if (n_copied == 0)
198 return -EINVAL;
199 nc->body.type = SPA_CHOICE_Enum;
200 }
201
202 if ((p1c == SPA_CHOICE_None && p2c == SPA_CHOICE_Range) ||
203 (p1c == SPA_CHOICE_Enum && p2c == SPA_CHOICE_Range)) {
204 int n_copied = 0;
205 /* copy all values inside the range */
206 for (j = 0, a1 = alt1, a2 = alt2; j < nalt1; j++, a1 = SPA_PTROFF(a1,size,void)) {
207 if (spa_pod_compare_value(type, a1, a2, size) < 0)
208 continue;
209 if (spa_pod_compare_value(type, a1, SPA_PTROFF(a2,size,void), size) > 0)
210 continue;
211 spa_pod_builder_raw(b, a1, size);
212 n_copied++;
213 }
214 if (n_copied == 0)
215 return -EINVAL;
216 nc->body.type = SPA_CHOICE_Enum;
217 }
218
219 if ((p1c == SPA_CHOICE_None && p2c == SPA_CHOICE_Step) ||
220 (p1c == SPA_CHOICE_Enum && p2c == SPA_CHOICE_Step)) {
221 int n_copied = 0;
222 for (j = 0, a1 = alt1, a2 = alt2; j < nalt1; j++, a1 = SPA_PTROFF(a1,size,void)) {
223 int res;
224 if (spa_pod_compare_value(type, a1, a2, size) < 0)
225 continue;
226 if (spa_pod_compare_value(type, a1, SPA_PTROFF(a2,size,void), size) > 0)
227 continue;
228
229 res = spa_pod_filter_is_step_of(type, a1, SPA_PTROFF(a2,size*2,void), size);
230 if (res == 0)
231 continue;
232 if (res == -ENOTSUP)
233 return -EINVAL;
234
235 spa_pod_builder_raw(b, a1, size);
236 n_copied++;
237 }
238 if (n_copied == 0)
239 return -EINVAL;
240 nc->body.type = SPA_CHOICE_Enum;
241 }
242
243 if ((p1c == SPA_CHOICE_Range && p2c == SPA_CHOICE_None) ||
244 (p1c == SPA_CHOICE_Range && p2c == SPA_CHOICE_Enum)) {
245 int n_copied = 0;
246 /* copy all values inside the range */
247 for (k = 0, a1 = alt1, a2 = alt2; k < nalt2; k++, a2 = SPA_PTROFF(a2,size,void)) {
248 if (spa_pod_compare_value(type, a2, a1, size) < 0)
249 continue;
250 if (spa_pod_compare_value(type, a2, SPA_PTROFF(a1,size,void), size) > 0)
251 continue;
252 spa_pod_builder_raw(b, a2, size);
253 n_copied++;
254 }
255 if (n_copied == 0)
256 return -EINVAL;
257 nc->body.type = SPA_CHOICE_Enum;
258 }
259
260 if ((p1c == SPA_CHOICE_Range && p2c == SPA_CHOICE_Range) ||
261 (p1c == SPA_CHOICE_Range && p2c == SPA_CHOICE_Step) ||
262 (p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_Range) ||
263 (p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_Step)) {
264 if (spa_pod_compare_value(type, alt1, alt2, size) < 0)
265 spa_pod_builder_raw(b, alt2, size);
266 else
267 spa_pod_builder_raw(b, alt1, size);
268
269 alt1 = SPA_PTROFF(alt1,size,void);
270 alt2 = SPA_PTROFF(alt2,size,void);
271
272 if (spa_pod_compare_value(type, alt1, alt2, size) < 0)
273 spa_pod_builder_raw(b, alt1, size);
274 else
275 spa_pod_builder_raw(b, alt2, size);
276
277 nc->body.type = SPA_CHOICE_Range;
278 }
279
280 if ((p1c == SPA_CHOICE_None && p2c == SPA_CHOICE_Flags) ||
281 (p1c == SPA_CHOICE_Flags && p2c == SPA_CHOICE_None) ||
282 (p1c == SPA_CHOICE_Flags && p2c == SPA_CHOICE_Flags)) {
283 if (spa_pod_filter_flags_value(b, type, alt1, alt2, size) != 1)
284 return -EINVAL;
285 nc->body.type = SPA_CHOICE_Flags;
286 }
287
288 if (p1c == SPA_CHOICE_Range && p2c == SPA_CHOICE_Flags)
289 return -ENOTSUP;
290
291 if (p1c == SPA_CHOICE_Enum && p2c == SPA_CHOICE_Flags)
292 return -ENOTSUP;
293
294 if ((p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_None) ||
295 (p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_Enum)) {
296 int n_copied = 0;
297 for (j = 0, a1 = alt1, a2 = alt2; j < nalt2; j++, a2 = SPA_PTROFF(a1,size,void)) {
298 int res;
299 if (spa_pod_compare_value(type, a2, a1, size) < 0)
300 continue;
301 if (spa_pod_compare_value(type, a2, SPA_PTROFF(a1,size,void), size) > 0)
302 continue;
303
304 res = spa_pod_filter_is_step_of(type, a2, SPA_PTROFF(a1,size*2,void), size);
305 if (res == 0)
306 continue;
307 if (res == -ENOTSUP)
308 return -EINVAL;
309
310 spa_pod_builder_raw(b, a2, size);
311 n_copied++;
312 }
313 if (n_copied == 0)
314 return -EINVAL;
315 nc->body.type = SPA_CHOICE_Enum;
316 }
317 if (p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_Flags)
318 return -ENOTSUP;
319
320 if (p1c == SPA_CHOICE_Flags && p2c == SPA_CHOICE_Range)
321 return -ENOTSUP;
322 if (p1c == SPA_CHOICE_Flags && p2c == SPA_CHOICE_Step)
323 return -ENOTSUP;
324 if (p1c == SPA_CHOICE_Flags && p2c == SPA_CHOICE_Enum)
325 return -ENOTSUP;
326
327 spa_pod_builder_pop(b, &f);
328 spa_pod_choice_fix_default(nc);
329
330 return 0;
331}
332
333 SPA_API_POD_FILTER int spa_pod_filter_part(struct spa_pod_builder *b,
334 const struct spa_pod *pod, uint32_t pod_size,
335 const struct spa_pod *filter, uint32_t filter_size)
336{
337 const struct spa_pod *pp, *pf;
338 int res = 0;
339
340 pf = filter;
341
342 SPA_POD_FOREACH(pod, pod_size, pp) {
343 bool do_copy = false, do_advance = false;
344 uint32_t filter_offset = 0;
345 struct spa_pod_frame f;
346
347 switch (SPA_POD_TYPE(pp)) {
348 case SPA_TYPE_Object:
349 if (pf != NULL) {
350 struct spa_pod_object *op = (struct spa_pod_object *) pp;
351 struct spa_pod_object *of = (struct spa_pod_object *) pf;
352 const struct spa_pod_prop *p1, *p2;
353
354 if (SPA_POD_TYPE(pf) != SPA_POD_TYPE(pp))
355 return -EINVAL;
356
357 spa_pod_builder_push_object(b, &f, op->body.type, op->body.id);
358 p2 = NULL;
359 SPA_POD_OBJECT_FOREACH(op, p1) {
360 p2 = spa_pod_object_find_prop(of, p2, p1->key);
361 if (p2 != NULL)
362 res = spa_pod_filter_prop(b, p1, p2);
363 else if ((p1->flags & SPA_POD_PROP_FLAG_MANDATORY) != 0)
364 res = -EINVAL;
365 else
366 spa_pod_builder_raw_padded(b, p1, SPA_POD_PROP_SIZE(p1));
367 if (res < 0)
368 break;
369 }
370 if (res >= 0) {
371 p1 = NULL;
372 SPA_POD_OBJECT_FOREACH(of, p2) {
373 p1 = spa_pod_object_find_prop(op, p1, p2->key);
374 if (p1 != NULL)
375 continue;
376 if ((p2->flags & SPA_POD_PROP_FLAG_MANDATORY) != 0)
377 res = -EINVAL;
378 if (res < 0)
379 break;
380 spa_pod_builder_raw_padded(b, p2, SPA_POD_PROP_SIZE(p2));
381 }
382 }
383 spa_pod_builder_pop(b, &f);
384 do_advance = true;
385 }
386 else
387 do_copy = true;
388 break;
389
390 case SPA_TYPE_Struct:
391 if (pf != NULL) {
392 if (SPA_POD_TYPE(pf) != SPA_POD_TYPE(pp))
393 return -EINVAL;
394
395 filter_offset = sizeof(struct spa_pod_struct);
396 spa_pod_builder_push_struct(b, &f);
397 res = spa_pod_filter_part(b,
398 SPA_PTROFF(pp,filter_offset,const struct spa_pod),
399 SPA_POD_SIZE(pp) - filter_offset,
400 SPA_PTROFF(pf,filter_offset,const struct spa_pod),
401 SPA_POD_SIZE(pf) - filter_offset);
402 spa_pod_builder_pop(b, &f);
403 do_advance = true;
404 }
405 else
406 do_copy = true;
407 break;
408
409 default:
410 if (pf != NULL) {
411 if (SPA_POD_SIZE(pp) != SPA_POD_SIZE(pf))
412 return -EINVAL;
413 if (memcmp(pp, pf, SPA_POD_SIZE(pp)) != 0)
414 return -EINVAL;
415 do_advance = true;
416 }
417 do_copy = true;
418 break;
419 }
420 if (do_copy)
421 spa_pod_builder_raw_padded(b, pp, SPA_POD_SIZE(pp));
422 if (do_advance) {
423 pf = (const struct spa_pod*)spa_pod_next(pf);
424 if (!spa_pod_is_inside(filter, filter_size, pf))
425 pf = NULL;
426 }
427 if (res < 0)
428 break;
429 }
430 return res;
431}
432
433 SPA_API_POD_FILTER int
434 spa_pod_filter(struct spa_pod_builder *b,
435 struct spa_pod **result,
436 const struct spa_pod *pod,
437 const struct spa_pod *filter)
438{
439 int res;
440 struct spa_pod_builder_state state;
441
442 spa_return_val_if_fail(pod != NULL, -EINVAL);
443 spa_return_val_if_fail(b != NULL, -EINVAL);
444
445 spa_pod_builder_get_state(b, &state);
446 if (filter == NULL)
447 res = spa_pod_builder_raw_padded(b, pod, SPA_POD_SIZE(pod));
448 else
449 res = spa_pod_filter_part(b, pod, SPA_POD_SIZE(pod), filter, SPA_POD_SIZE(filter));
450
451 if (res < 0) {
452 spa_pod_builder_reset(b, &state);
453 } else if (result) {
454 *result = (struct spa_pod*)spa_pod_builder_deref(b, state.offset);
455 if (*result == NULL)
456 res = -ENOSPC;
457 }
458 return res;
459}
460
464
465#ifdef __cplusplus
466} /* extern "C" */
467#endif
468
469#endif /* SPA_POD_FILTER_H */
builder.h
spa/pod/builder.h
compare.h
spa/pod/compare.h
res
uint32_t int int res
Definition core.h:433
spa_pod_builder_pop
SPA_API_POD_BUILDER void * spa_pod_builder_pop(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition builder.h:187
spa_pod_builder_int
SPA_API_POD_BUILDER int spa_pod_builder_int(struct spa_pod_builder *builder, int32_t val)
Definition builder.h:266
spa_pod_builder_long
SPA_API_POD_BUILDER int spa_pod_builder_long(struct spa_pod_builder *builder, int64_t val)
Definition builder.h:275
spa_pod_builder_push_choice
SPA_API_POD_BUILDER int spa_pod_builder_push_choice(struct spa_pod_builder *builder, struct spa_pod_frame *frame, uint32_t type, uint32_t flags)
Definition builder.h:425
SPA_POD_CHOICE_VALUE_TYPE
#define SPA_POD_CHOICE_VALUE_TYPE(choice)
Definition pod.h:138
spa_pod_get_values
SPA_API_POD_ITER struct spa_pod * spa_pod_get_values(const struct spa_pod *pod, uint32_t *n_vals, uint32_t *choice)
Definition iter.h:363
SPA_POD_PROP_FLAG_MANDATORY
#define SPA_POD_PROP_FLAG_MANDATORY
is mandatory
Definition pod.h:222
SPA_POD_CHOICE_VALUE_SIZE
#define SPA_POD_CHOICE_VALUE_SIZE(choice)
Definition pod.h:140
spa_pod_filter_prop
SPA_API_POD_FILTER int spa_pod_filter_prop(struct spa_pod_builder *b, const struct spa_pod_prop *p1, const struct spa_pod_prop *p2)
Definition filter.h:144
spa_pod_builder_get_state
SPA_API_POD_BUILDER void spa_pod_builder_get_state(struct spa_pod_builder *builder, struct spa_pod_builder_state *state)
Definition builder.h:75
spa_pod_object_find_prop
SPA_API_POD_ITER 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:404
spa_pod_compare_value
SPA_API_POD_COMPARE int spa_pod_compare_value(uint32_t type, const void *r1, const void *r2, uint32_t size)
Definition compare.h:43
SPA_POD_OBJECT_FOREACH
#define SPA_POD_OBJECT_FOREACH(obj, iter)
Definition iter.h:124
SPA_POD_BODY
#define SPA_POD_BODY(pod)
Definition pod.h:39
SPA_POD_TYPE
#define SPA_POD_TYPE(pod)
Definition pod.h:28
spa_pod_next
SPA_API_POD_ITER void * spa_pod_next(const void *iter)
Definition iter.h:52
spa_pod_builder_push_struct
SPA_API_POD_BUILDER int spa_pod_builder_push_struct(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition builder.h:441
spa_pod_builder_deref
SPA_API_POD_BUILDER struct spa_pod * spa_pod_builder_deref(struct spa_pod_builder *builder, uint32_t offset)
Definition builder.h:103
spa_pod_builder_push_object
SPA_API_POD_BUILDER int spa_pod_builder_push_object(struct spa_pod_builder *builder, struct spa_pod_frame *frame, uint32_t type, uint32_t id)
Definition builder.h:454
spa_pod_filter
SPA_API_POD_FILTER int spa_pod_filter(struct spa_pod_builder *b, struct spa_pod **result, const struct spa_pod *pod, const struct spa_pod *filter)
Definition filter.h:441
spa_pod_builder_reset
SPA_API_POD_BUILDER void spa_pod_builder_reset(struct spa_pod_builder *builder, struct spa_pod_builder_state *state)
Definition builder.h:88
SPA_POD_FOREACH
#define SPA_POD_FOREACH(pod, size, iter)
Definition iter.h:111
SPA_POD_CHOICE_VALUES
#define SPA_POD_CHOICE_VALUES(choice)
Definition pod.h:144
SPA_POD_PROP_SIZE
#define SPA_POD_PROP_SIZE(prop)
Definition pod.h:205
spa_pod_filter_flags_value
SPA_API_POD_FILTER int spa_pod_filter_flags_value(struct spa_pod_builder *b, uint32_t type, const void *r1, const void *r2, uint32_t size 1)
Definition filter.h:95
spa_pod_is_inside
SPA_API_POD_ITER bool spa_pod_is_inside(const void *pod, uint32_t size, const void *iter)
Definition iter.h:44
spa_pod_choice_fix_default
SPA_API_POD_FILTER int spa_pod_choice_fix_default(struct spa_pod_choice *choice)
Definition filter.h:43
spa_pod_builder_raw
SPA_API_POD_BUILDER int spa_pod_builder_raw(struct spa_pod_builder *builder, const void *data, uint32_t size)
Definition builder.h:138
spa_pod_builder_frame
SPA_API_POD_BUILDER struct spa_pod * spa_pod_builder_frame(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition builder.h:115
SPA_POD_CHOICE_N_VALUES
#define SPA_POD_CHOICE_N_VALUES(choice)
Definition pod.h:142
spa_pod_builder_primitive
SPA_API_POD_BUILDER int spa_pod_builder_primitive(struct spa_pod_builder *builder, const struct spa_pod *p)
Definition builder.h:205
spa_pod_builder_raw_padded
SPA_API_POD_BUILDER int spa_pod_builder_raw_padded(struct spa_pod_builder *builder, const void *data, uint32_t size)
Definition builder.h:179
spa_pod_filter_is_step_of
SPA_API_POD_FILTER int spa_pod_filter_is_step_of(uint32_t type, const void *r1, const void *r2, uint32_t size 1)
Definition filter.h:121
spa_pod_filter_part
SPA_API_POD_FILTER int spa_pod_filter_part(struct spa_pod_builder *b, const struct spa_pod *pod, uint32_t pod_size, const struct spa_pod *filter, uint32_t filter_size)
Definition filter.h:340
SPA_POD_SIZE
#define SPA_POD_SIZE(pod)
Definition pod.h:30
spa_pod_builder_prop
SPA_API_POD_BUILDER int spa_pod_builder_prop(struct spa_pod_builder *builder, uint32_t key, uint32_t flags)
Definition builder.h:469
SPA_CHOICE_Step
@ SPA_CHOICE_Step
range with step: default, min, max, step
Definition pod.h:149
SPA_CHOICE_None
@ SPA_CHOICE_None
no choice, first value is current
Definition pod.h:147
SPA_CHOICE_Flags
@ SPA_CHOICE_Flags
flags: default, possible flags,...
Definition pod.h:151
SPA_CHOICE_Range
@ SPA_CHOICE_Range
range: default, min, max
Definition pod.h:148
SPA_CHOICE_Enum
@ SPA_CHOICE_Enum
list: default, alternative,...
Definition pod.h:150
SPA_TYPE_Int
@ SPA_TYPE_Int
Definition type.h:45
SPA_TYPE_Rectangle
@ SPA_TYPE_Rectangle
Definition type.h:51
SPA_TYPE_Long
@ SPA_TYPE_Long
Definition type.h:46
SPA_TYPE_Object
@ SPA_TYPE_Object
Definition type.h:56
SPA_TYPE_Struct
@ SPA_TYPE_Struct
Definition type.h:55
SPA_UNUSED
#define SPA_UNUSED
Definition defs.h:307
spa_return_val_if_fail
#define spa_return_val_if_fail(expr, val)
Definition defs.h:456
SPA_PTROFF
#define SPA_PTROFF(ptr_, offset_, type_)
Return the address (buffer + offset) as pointer of type.
Definition defs.h:222
iter.h
spa/pod/iter.h
props.h
SPA_API_POD_FILTER
#define SPA_API_POD_FILTER
Definition filter.h:34
string.h
spa/utils/string.h
spa_pod_builder_state
Definition builder.h:42
spa_pod_builder
Definition builder.h:63
spa_pod_choice_body::type
uint32_t type
type of choice, one of enum spa_choice_type
Definition pod.h:155
spa_pod_choice
Definition pod.h:162
spa_pod_choice::body
struct spa_pod_choice_body body
Definition pod.h:164
spa_pod_choice::pod
struct spa_pod pod
Definition pod.h:163
spa_pod_frame
Definition iter.h:37
spa_pod_object_body::type
uint32_t type
one of enum spa_type
Definition pod.h:178
spa_pod_object_body::id
uint32_t id
id of the object, depends on the object type
Definition pod.h:179
spa_pod_object
Definition pod.h:183
spa_pod_object::body
struct spa_pod_object_body body
Definition pod.h:185
spa_pod_prop
Definition pod.h:208
spa_pod_prop::key
uint32_t key
key of property, list of valid keys depends on the object type
Definition pod.h:209
spa_pod_prop::flags
uint32_t flags
flags for property
Definition pod.h:225
spa_pod_prop::value
struct spa_pod value
Definition pod.h:226
spa_pod_struct
Definition pod.h:167
spa_pod
Definition pod.h:43
spa_pod::type
uint32_t type
Definition pod.h:45
spa_pod::size
uint32_t size
Definition pod.h:44
spa_rectangle
Definition defs.h:116
spa_rectangle::width
uint32_t width
Definition defs.h:117
spa_rectangle::height
uint32_t height
Definition defs.h:118