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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /third_party/pipewire/spa/pod/pod.h | |
parent | Initial commit. (diff) | |
download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/pipewire/spa/pod/pod.h')
-rw-r--r-- | third_party/pipewire/spa/pod/pod.h | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/third_party/pipewire/spa/pod/pod.h b/third_party/pipewire/spa/pod/pod.h new file mode 100644 index 0000000000..2d2eaad6a1 --- /dev/null +++ b/third_party/pipewire/spa/pod/pod.h @@ -0,0 +1,246 @@ +/* Simple Plugin API + * + * Copyright © 2018 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifndef SPA_POD_H +#define SPA_POD_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <spa/utils/defs.h> +#include <spa/utils/type.h> + +/** + * \addtogroup spa_pod + * \{ + */ + +#define SPA_POD_BODY_SIZE(pod) (((struct spa_pod*)(pod))->size) +#define SPA_POD_TYPE(pod) (((struct spa_pod*)(pod))->type) +#define SPA_POD_SIZE(pod) (sizeof(struct spa_pod) + SPA_POD_BODY_SIZE(pod)) +#define SPA_POD_CONTENTS_SIZE(type,pod) (SPA_POD_SIZE(pod)-sizeof(type)) + +#define SPA_POD_CONTENTS(type,pod) SPA_PTROFF((pod),sizeof(type),void) +#define SPA_POD_CONTENTS_CONST(type,pod) SPA_PTROFF((pod),sizeof(type),const void) +#define SPA_POD_BODY(pod) SPA_PTROFF((pod),sizeof(struct spa_pod),void) +#define SPA_POD_BODY_CONST(pod) SPA_PTROFF((pod),sizeof(struct spa_pod),const void) + +struct spa_pod { + uint32_t size; /* size of the body */ + uint32_t type; /* a basic id of enum spa_type */ +}; + +#define SPA_POD_VALUE(type,pod) (((type*)pod)->value) + +struct spa_pod_bool { + struct spa_pod pod; + int32_t value; + int32_t _padding; +}; + +struct spa_pod_id { + struct spa_pod pod; + uint32_t value; + int32_t _padding; +}; + +struct spa_pod_int { + struct spa_pod pod; + int32_t value; + int32_t _padding; +}; + +struct spa_pod_long { + struct spa_pod pod; + int64_t value; +}; + +struct spa_pod_float { + struct spa_pod pod; + float value; + int32_t _padding; +}; + +struct spa_pod_double { + struct spa_pod pod; + double value; +}; + +struct spa_pod_string { + struct spa_pod pod; + /* value here */ +}; + +struct spa_pod_bytes { + struct spa_pod pod; + /* value here */ +}; + +struct spa_pod_rectangle { + struct spa_pod pod; + struct spa_rectangle value; +}; + +struct spa_pod_fraction { + struct spa_pod pod; + struct spa_fraction value; +}; + +struct spa_pod_bitmap { + struct spa_pod pod; + /* array of uint8_t follows with the bitmap */ +}; + +#define SPA_POD_ARRAY_CHILD(arr) (&((struct spa_pod_array*)(arr))->body.child) +#define SPA_POD_ARRAY_VALUE_TYPE(arr) (SPA_POD_TYPE(SPA_POD_ARRAY_CHILD(arr))) +#define SPA_POD_ARRAY_VALUE_SIZE(arr) (SPA_POD_BODY_SIZE(SPA_POD_ARRAY_CHILD(arr))) +#define SPA_POD_ARRAY_N_VALUES(arr) (SPA_POD_ARRAY_VALUE_SIZE(arr) ? ((SPA_POD_BODY_SIZE(arr) - sizeof(struct spa_pod_array_body)) / SPA_POD_ARRAY_VALUE_SIZE(arr)) : 0) +#define SPA_POD_ARRAY_VALUES(arr) SPA_POD_CONTENTS(struct spa_pod_array, arr) + +struct spa_pod_array_body { + struct spa_pod child; + /* array with elements of child.size follows */ +}; + +struct spa_pod_array { + struct spa_pod pod; + struct spa_pod_array_body body; +}; + +#define SPA_POD_CHOICE_CHILD(choice) (&((struct spa_pod_choice*)(choice))->body.child) +#define SPA_POD_CHOICE_TYPE(choice) (((struct spa_pod_choice*)(choice))->body.type) +#define SPA_POD_CHOICE_FLAGS(choice) (((struct spa_pod_choice*)(choice))->body.flags) +#define SPA_POD_CHOICE_VALUE_TYPE(choice) (SPA_POD_TYPE(SPA_POD_CHOICE_CHILD(choice))) +#define SPA_POD_CHOICE_VALUE_SIZE(choice) (SPA_POD_BODY_SIZE(SPA_POD_CHOICE_CHILD(choice))) +#define SPA_POD_CHOICE_N_VALUES(choice) (SPA_POD_CHOICE_VALUE_SIZE(choice) ? ((SPA_POD_BODY_SIZE(choice) - sizeof(struct spa_pod_choice_body)) / SPA_POD_CHOICE_VALUE_SIZE(choice)) : 0) +#define SPA_POD_CHOICE_VALUES(choice) (SPA_POD_CONTENTS(struct spa_pod_choice, choice)) + +enum spa_choice_type { + SPA_CHOICE_None, /**< no choice, first value is current */ + SPA_CHOICE_Range, /**< range: default, min, max */ + SPA_CHOICE_Step, /**< range with step: default, min, max, step */ + SPA_CHOICE_Enum, /**< list: default, alternative,... */ + SPA_CHOICE_Flags, /**< flags: default, possible flags,... */ +}; + +struct spa_pod_choice_body { + uint32_t type; /**< type of choice, one of enum spa_choice_type */ + uint32_t flags; /**< extra flags */ + struct spa_pod child; + /* array with elements of child.size follows. Note that there might be more + * elements than required by \a type, which should be ignored. */ +}; + +struct spa_pod_choice { + struct spa_pod pod; + struct spa_pod_choice_body body; +}; + +struct spa_pod_struct { + struct spa_pod pod; + /* one or more spa_pod follow */ +}; + +#define SPA_POD_OBJECT_TYPE(obj) (((struct spa_pod_object*)(obj))->body.type) +#define SPA_POD_OBJECT_ID(obj) (((struct spa_pod_object*)(obj))->body.id) + +struct spa_pod_object_body { + uint32_t type; /**< one of enum spa_type */ + uint32_t id; /**< id of the object, depends on the object type */ + /* contents follow, series of spa_pod_prop */ +}; + +struct spa_pod_object { + struct spa_pod pod; + struct spa_pod_object_body body; +}; + +struct spa_pod_pointer_body { + uint32_t type; /**< pointer id, one of enum spa_type */ + uint32_t _padding; + const void *value; +}; + +struct spa_pod_pointer { + struct spa_pod pod; + struct spa_pod_pointer_body body; +}; + +struct spa_pod_fd { + struct spa_pod pod; + int64_t value; +}; + +#define SPA_POD_PROP_SIZE(prop) (sizeof(struct spa_pod_prop) + (prop)->value.size) + +/* props can be inside an object */ +struct spa_pod_prop { + uint32_t key; /**< key of property, list of valid keys depends on the + * object type */ +#define SPA_POD_PROP_FLAG_READONLY (1u<<0) /**< is read-only */ +#define SPA_POD_PROP_FLAG_HARDWARE (1u<<1) /**< some sort of hardware parameter */ +#define SPA_POD_PROP_FLAG_HINT_DICT (1u<<2) /**< contains a dictionary struct as + * (Struct( + * Int : n_items, + * (String : key, + * String : value)*)) */ +#define SPA_POD_PROP_FLAG_MANDATORY (1u<<3) /**< is mandatory */ +#define SPA_POD_PROP_FLAG_DONT_FIXATE (1u<<4) /**< choices need no fixation */ + uint32_t flags; /**< flags for property */ + struct spa_pod value; + /* value follows */ +}; + +#define SPA_POD_CONTROL_SIZE(ev) (sizeof(struct spa_pod_control) + (ev)->value.size) + +/* controls can be inside a sequence and mark timed values */ +struct spa_pod_control { + uint32_t offset; /**< media offset */ + uint32_t type; /**< type of control, enum spa_control_type */ + struct spa_pod value; /**< control value, depends on type */ + /* value contents follow */ +}; + +struct spa_pod_sequence_body { + uint32_t unit; + uint32_t pad; + /* series of struct spa_pod_control follows */ +}; + +/** a sequence of timed controls */ +struct spa_pod_sequence { + struct spa_pod pod; + struct spa_pod_sequence_body body; +}; + +/** + * \} + */ + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* SPA_POD_H */ |