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Diffstat (limited to 'src/modules/module-metadata/protocol-native.c')
| -rw-r--r-- | src/modules/module-metadata/protocol-native.c | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/src/modules/module-metadata/protocol-native.c b/src/modules/module-metadata/protocol-native.c new file mode 100644 index 0000000..54958db --- /dev/null +++ b/src/modules/module-metadata/protocol-native.c @@ -0,0 +1,354 @@ +/* PipeWire + * + * Copyright © 2019 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. + */ + +#include <errno.h> + +#include <spa/pod/builder.h> +#include <spa/pod/parser.h> +#include <spa/utils/result.h> + +#include <pipewire/pipewire.h> + +#include <pipewire/extensions/protocol-native.h> +#include <pipewire/extensions/metadata.h> + +static int metadata_resource_marshal_add_listener(void *object, + struct spa_hook *listener, + const struct pw_metadata_events *events, + void *data) +{ + struct pw_resource *resource = object; + struct spa_pod_builder *b; + + pw_resource_add_object_listener(resource, listener, events, data); + + b = pw_protocol_native_begin_resource(resource, PW_METADATA_METHOD_ADD_LISTENER, NULL); + return pw_protocol_native_end_resource(resource, b); +} + +static int metadata_proxy_marshal_add_listener(void *object, + struct spa_hook *listener, + const struct pw_metadata_events *events, + void *data) +{ + struct pw_proxy *proxy = object; + pw_proxy_add_object_listener(proxy, listener, events, data); + return 0; +} + +static int metadata_resource_demarshal_add_listener(void *object, + const struct pw_protocol_native_message *msg) +{ + return -ENOTSUP; +} + +static const struct pw_metadata_events pw_protocol_native_metadata_client_event_marshal; + +static int metadata_proxy_demarshal_add_listener(void *object, + const struct pw_protocol_native_message *msg) +{ + struct pw_proxy *proxy = object; + struct spa_hook listener; + int res; + + spa_zero(listener); + res = pw_proxy_notify(proxy, struct pw_metadata_methods, add_listener, 0, + &listener, &pw_protocol_native_metadata_client_event_marshal, object); + spa_hook_remove(&listener); + + return res; +} + +static void metadata_marshal_set_property(struct spa_pod_builder *b, uint32_t subject, + const char *key, const char *type, const char *value) +{ + spa_pod_builder_add_struct(b, + SPA_POD_Int(subject), + SPA_POD_String(key), + SPA_POD_String(type), + SPA_POD_String(value)); +} + +static int metadata_proxy_marshal_set_property(void *object, uint32_t subject, + const char *key, const char *type, const char *value) +{ + struct pw_proxy *proxy = object; + struct spa_pod_builder *b; + b = pw_protocol_native_begin_proxy(proxy, PW_METADATA_METHOD_SET_PROPERTY, NULL); + metadata_marshal_set_property(b, subject, key, type, value); + return pw_protocol_native_end_proxy(proxy, b); +} +static int metadata_resource_marshal_set_property(void *object, uint32_t subject, + const char *key, const char *type, const char *value) +{ + struct pw_resource *resource = object; + struct spa_pod_builder *b; + b = pw_protocol_native_begin_resource(resource, PW_METADATA_METHOD_SET_PROPERTY, NULL); + metadata_marshal_set_property(b, subject, key, type, value); + return pw_protocol_native_end_resource(resource, b); +} + +static int metadata_demarshal_set_property(struct spa_pod_parser *prs, uint32_t *subject, + char **key, char **type, char **value) +{ + return spa_pod_parser_get_struct(prs, + SPA_POD_Int(subject), + SPA_POD_String(key), + SPA_POD_String(type), + SPA_POD_String(value)); +} + +static int metadata_proxy_demarshal_set_property(void *object, + const struct pw_protocol_native_message *msg) +{ + struct pw_proxy *proxy = object; + struct spa_pod_parser prs; + uint32_t subject; + char *key, *type, *value; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (metadata_demarshal_set_property(&prs, &subject, &key, &type, &value) < 0) + return -EINVAL; + return pw_proxy_notify(proxy, struct pw_metadata_methods, set_property, 0, subject, key, type, value); +} + +static int metadata_resource_demarshal_set_property(void *object, + const struct pw_protocol_native_message *msg) +{ + struct pw_resource *resource = object; + struct spa_pod_parser prs; + uint32_t subject; + char *key, *type, *value; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (metadata_demarshal_set_property(&prs, &subject, &key, &type, &value) < 0) + return -EINVAL; + return pw_resource_notify(resource, struct pw_metadata_methods, set_property, 0, subject, key, type, value); +} + +static void metadata_marshal_clear(struct spa_pod_builder *b) +{ + spa_pod_builder_add_struct(b, SPA_POD_None()); +} + +static int metadata_proxy_marshal_clear(void *object) +{ + struct pw_proxy *proxy = object; + struct spa_pod_builder *b; + b = pw_protocol_native_begin_proxy(proxy, PW_METADATA_METHOD_CLEAR, NULL); + metadata_marshal_clear(b); + return pw_protocol_native_end_proxy(proxy, b); +} +static int metadata_resource_marshal_clear(void *object) +{ + struct pw_resource *resource = object; + struct spa_pod_builder *b; + b = pw_protocol_native_begin_resource(resource, PW_METADATA_METHOD_CLEAR, NULL); + metadata_marshal_clear(b); + return pw_protocol_native_end_resource(resource, b); +} + +static int metadata_proxy_demarshal_clear(void *object, const struct pw_protocol_native_message *msg) +{ + struct pw_proxy *proxy = object; + struct spa_pod_parser prs; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (spa_pod_parser_get_struct(&prs, SPA_POD_None()) < 0) + return -EINVAL; + pw_proxy_notify(proxy, struct pw_metadata_methods, clear, 0); + return 0; +} + +static int metadata_resource_demarshal_clear(void *object, const struct pw_protocol_native_message *msg) +{ + struct pw_resource *resource = object; + struct spa_pod_parser prs; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (spa_pod_parser_get_struct(&prs, SPA_POD_None()) < 0) + return -EINVAL; + pw_resource_notify(resource, struct pw_metadata_methods, clear, 0); + return 0; +} + +static void metadata_marshal_property(struct spa_pod_builder *b, uint32_t subject, + const char *key, const char *type, const char *value) +{ + spa_pod_builder_add_struct(b, + SPA_POD_Int(subject), + SPA_POD_String(key), + SPA_POD_String(type), + SPA_POD_String(value)); +} + +static int metadata_proxy_marshal_property(void *object, uint32_t subject, + const char *key, const char *type, const char *value) +{ + struct pw_proxy *proxy = object; + struct spa_pod_builder *b; + b = pw_protocol_native_begin_proxy(proxy, PW_METADATA_EVENT_PROPERTY, NULL); + metadata_marshal_property(b, subject, key, type, value); + return pw_protocol_native_end_proxy(proxy, b); +} + +static int metadata_resource_marshal_property(void *object, uint32_t subject, + const char *key, const char *type, const char *value) +{ + struct pw_resource *resource = object; + struct spa_pod_builder *b; + b = pw_protocol_native_begin_resource(resource, PW_METADATA_EVENT_PROPERTY, NULL); + metadata_marshal_property(b, subject, key, type, value); + return pw_protocol_native_end_resource(resource, b); +} + +static int metadata_demarshal_property(struct spa_pod_parser *prs, + uint32_t *subject, char **key, char **type, char **value) +{ + return spa_pod_parser_get_struct(prs, + SPA_POD_Int(subject), + SPA_POD_String(key), + SPA_POD_String(type), + SPA_POD_String(value)); +} + +static int metadata_proxy_demarshal_property(void *object, + const struct pw_protocol_native_message *msg) +{ + struct pw_proxy *proxy = object; + struct spa_pod_parser prs; + uint32_t subject; + char *key, *type, *value; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (metadata_demarshal_property(&prs, + &subject, &key, &type, &value) < 0) + return -EINVAL; + pw_proxy_notify(proxy, struct pw_metadata_events, property, 0, subject, key, type, value); + return 0; +} + +static int metadata_resource_demarshal_property(void *object, + const struct pw_protocol_native_message *msg) +{ + struct pw_resource *resource = object; + struct spa_pod_parser prs; + uint32_t subject; + char *key, *type, *value; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (metadata_demarshal_property(&prs, + &subject, &key, &type, &value) < 0) + return -EINVAL; + pw_resource_notify(resource, struct pw_metadata_events, property, 0, subject, key, type, value); + return 0; +} + +static const struct pw_metadata_methods pw_protocol_native_metadata_client_method_marshal = { + PW_VERSION_METADATA_METHODS, + .add_listener = &metadata_proxy_marshal_add_listener, + .set_property = &metadata_proxy_marshal_set_property, + .clear = &metadata_proxy_marshal_clear, +}; +static const struct pw_metadata_methods pw_protocol_native_metadata_server_method_marshal = { + PW_VERSION_METADATA_METHODS, + .add_listener = &metadata_resource_marshal_add_listener, + .set_property = &metadata_resource_marshal_set_property, + .clear = &metadata_resource_marshal_clear, +}; + +static const struct pw_protocol_native_demarshal +pw_protocol_native_metadata_client_method_demarshal[PW_METADATA_METHOD_NUM] = +{ + [PW_METADATA_METHOD_ADD_LISTENER] = { &metadata_proxy_demarshal_add_listener, 0 }, + [PW_METADATA_METHOD_SET_PROPERTY] = { &metadata_proxy_demarshal_set_property, PW_PERM_W }, + [PW_METADATA_METHOD_CLEAR] = { &metadata_proxy_demarshal_clear, PW_PERM_W }, +}; + +static const struct pw_protocol_native_demarshal +pw_protocol_native_metadata_server_method_demarshal[PW_METADATA_METHOD_NUM] = +{ + [PW_METADATA_METHOD_ADD_LISTENER] = { &metadata_resource_demarshal_add_listener, 0 }, + [PW_METADATA_METHOD_SET_PROPERTY] = { &metadata_resource_demarshal_set_property, PW_PERM_W }, + [PW_METADATA_METHOD_CLEAR] = { &metadata_resource_demarshal_clear, PW_PERM_W }, +}; + +static const struct pw_metadata_events pw_protocol_native_metadata_client_event_marshal = { + PW_VERSION_METADATA_EVENTS, + .property = &metadata_proxy_marshal_property, +}; + +static const struct pw_metadata_events pw_protocol_native_metadata_server_event_marshal = { + PW_VERSION_METADATA_EVENTS, + .property = &metadata_resource_marshal_property, +}; + +static const struct pw_protocol_native_demarshal +pw_protocol_native_metadata_client_event_demarshal[PW_METADATA_EVENT_NUM] = +{ + [PW_METADATA_EVENT_PROPERTY] = { &metadata_proxy_demarshal_property, 0 }, +}; + +static const struct pw_protocol_native_demarshal +pw_protocol_native_metadata_server_event_demarshal[PW_METADATA_EVENT_NUM] = +{ + [PW_METADATA_EVENT_PROPERTY] = { &metadata_resource_demarshal_property, 0 }, +}; + +static const struct pw_protocol_marshal pw_protocol_native_metadata_marshal = { + PW_TYPE_INTERFACE_Metadata, + PW_VERSION_METADATA, + 0, + PW_METADATA_METHOD_NUM, + PW_METADATA_EVENT_NUM, + .client_marshal = &pw_protocol_native_metadata_client_method_marshal, + .server_demarshal = pw_protocol_native_metadata_server_method_demarshal, + .server_marshal = &pw_protocol_native_metadata_server_event_marshal, + .client_demarshal = pw_protocol_native_metadata_client_event_demarshal, +}; + +static const struct pw_protocol_marshal pw_protocol_native_metadata_impl_marshal = { + PW_TYPE_INTERFACE_Metadata, + PW_VERSION_METADATA, + PW_PROTOCOL_MARSHAL_FLAG_IMPL, + PW_METADATA_EVENT_NUM, + PW_METADATA_METHOD_NUM, + .client_marshal = &pw_protocol_native_metadata_client_event_marshal, + .server_demarshal = pw_protocol_native_metadata_server_event_demarshal, + .server_marshal = &pw_protocol_native_metadata_server_method_marshal, + .client_demarshal = pw_protocol_native_metadata_client_method_demarshal, +}; + +int pw_protocol_native_ext_metadata_init(struct pw_context *context) +{ + struct pw_protocol *protocol; + + protocol = pw_context_find_protocol(context, PW_TYPE_INFO_PROTOCOL_Native); + if (protocol == NULL) + return -EPROTO; + + pw_protocol_add_marshal(protocol, &pw_protocol_native_metadata_marshal); + pw_protocol_add_marshal(protocol, &pw_protocol_native_metadata_impl_marshal); + return 0; +} |