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Diffstat (limited to 'third_party/pipewire/pipewire/impl-link.h')
| -rw-r--r-- | third_party/pipewire/pipewire/impl-link.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/third_party/pipewire/pipewire/impl-link.h b/third_party/pipewire/pipewire/impl-link.h new file mode 100644 index 0000000000..5a3b73f52f --- /dev/null +++ b/third_party/pipewire/pipewire/impl-link.h @@ -0,0 +1,126 @@ +/* PipeWire + * + * 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 PIPEWIRE_IMPL_LINK_H +#define PIPEWIRE_IMPL_LINK_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** \defgroup pw_impl_link Link Impl + * + * \brief PipeWire link object. + */ + +/** + * \addtogroup pw_impl_link + * \{ + */ +struct pw_impl_link; +struct pw_impl_port; + +#include <pipewire/impl.h> + +/** link events added with \ref pw_impl_link_add_listener */ +struct pw_impl_link_events { +#define PW_VERSION_IMPL_LINK_EVENTS 0 + uint32_t version; + + /** A link is destroyed */ + void (*destroy) (void *data); + + /** A link is freed */ + void (*free) (void *data); + + /** a Link is initialized */ + void (*initialized) (void *data); + + /** The info changed on a link */ + void (*info_changed) (void *data, const struct pw_link_info *info); + + /** The link state changed, \a error is only valid when the state is + * in error. */ + void (*state_changed) (void *data, enum pw_link_state old, + enum pw_link_state state, const char *error); + + /** A port is unlinked */ + void (*port_unlinked) (void *data, struct pw_impl_port *port); +}; + + +/** Make a new link between two ports + * \return a newly allocated link */ +struct pw_impl_link * +pw_context_create_link(struct pw_context *context, /**< the context object */ + struct pw_impl_port *output, /**< an output port */ + struct pw_impl_port *input, /**< an input port */ + struct spa_pod *format_filter, /**< an optional format filter */ + struct pw_properties *properties /**< extra properties */, + size_t user_data_size /**< extra user data size */); + +/** Destroy a link */ +void pw_impl_link_destroy(struct pw_impl_link *link); + +/** Add an event listener to \a link */ +void pw_impl_link_add_listener(struct pw_impl_link *link, + struct spa_hook *listener, + const struct pw_impl_link_events *events, + void *data); + +/** Finish link configuration and register */ +int pw_impl_link_register(struct pw_impl_link *link, /**< the link to register */ + struct pw_properties *properties /**< extra properties */); + +/** Get the context of a link */ +struct pw_context *pw_impl_link_get_context(struct pw_impl_link *link); + +/** Get the user_data of a link, the size of the memory is given when + * constructing the link */ +void *pw_impl_link_get_user_data(struct pw_impl_link *link); + +/** Get the link info */ +const struct pw_link_info *pw_impl_link_get_info(struct pw_impl_link *link); + +/** Get the global of the link */ +struct pw_global *pw_impl_link_get_global(struct pw_impl_link *link); + +/** Get the output port of the link */ +struct pw_impl_port *pw_impl_link_get_output(struct pw_impl_link *link); + +/** Get the input port of the link */ +struct pw_impl_port *pw_impl_link_get_input(struct pw_impl_link *link); + +/** Find the link between 2 ports */ +struct pw_impl_link *pw_impl_link_find(struct pw_impl_port *output, struct pw_impl_port *input); + +/** + * \} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* PIPEWIRE_IMPL_LINK_H */ |