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https://github.com/mumble-voip/mumble.git
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0a31cd1c63
Tested with PipeWire 0.3.26. The implementation is quite basic and simple, yet it surpasses the JACK one in terms of features. For example, support for the most common surround mappings is provided. As opposed to JACK, an option to disable the auto endpoint connection is not provided. However, it's something that can be easily implemented if needed. Support for echo cancellation will definitely be added in future.
153 lines
5.6 KiB
C
153 lines
5.6 KiB
C
/* Simple Plugin API
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*
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* Copyright © 2019 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SPA_SYSTEM_H
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#define SPA_SYSTEM_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct itimerspec;
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#include <time.h>
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#include <sys/types.h>
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#include <spa/utils/defs.h>
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#include <spa/utils/hook.h>
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/**
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* a collection of core system functions
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*/
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#define SPA_TYPE_INTERFACE_System SPA_TYPE_INFO_INTERFACE_BASE "System"
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#define SPA_TYPE_INTERFACE_DataSystem SPA_TYPE_INFO_INTERFACE_BASE "DataSystem"
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#define SPA_VERSION_SYSTEM 0
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struct spa_system { struct spa_interface iface; };
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/* IO events */
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#define SPA_IO_IN (1 << 0)
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#define SPA_IO_OUT (1 << 2)
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#define SPA_IO_ERR (1 << 3)
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#define SPA_IO_HUP (1 << 4)
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/* flags */
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#define SPA_FD_CLOEXEC (1<<0)
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#define SPA_FD_NONBLOCK (1<<1)
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#define SPA_FD_EVENT_SEMAPHORE (1<<2)
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#define SPA_FD_TIMER_ABSTIME (1<<3)
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#define SPA_FD_TIMER_CANCEL_ON_SET (1<<4)
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struct spa_poll_event {
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uint32_t events;
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void *data;
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};
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struct spa_system_methods {
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#define SPA_VERSION_SYSTEM_METHODS 0
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uint32_t version;
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/* read/write/ioctl */
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ssize_t (*read) (void *object, int fd, void *buf, size_t count);
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ssize_t (*write) (void *object, int fd, const void *buf, size_t count);
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int (*ioctl) (void *object, int fd, unsigned long request, ...);
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int (*close) (void *object, int fd);
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/* clock */
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int (*clock_gettime) (void *object,
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int clockid, struct timespec *value);
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int (*clock_getres) (void *object,
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int clockid, struct timespec *res);
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/* poll */
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int (*pollfd_create) (void *object, int flags);
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int (*pollfd_add) (void *object, int pfd, int fd, uint32_t events, void *data);
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int (*pollfd_mod) (void *object, int pfd, int fd, uint32_t events, void *data);
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int (*pollfd_del) (void *object, int pfd, int fd);
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int (*pollfd_wait) (void *object, int pfd,
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struct spa_poll_event *ev, int n_ev, int timeout);
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/* timers */
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int (*timerfd_create) (void *object, int clockid, int flags);
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int (*timerfd_settime) (void *object,
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int fd, int flags,
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const struct itimerspec *new_value,
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struct itimerspec *old_value);
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int (*timerfd_gettime) (void *object,
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int fd, struct itimerspec *curr_value);
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int (*timerfd_read) (void *object, int fd, uint64_t *expirations);
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/* events */
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int (*eventfd_create) (void *object, int flags);
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int (*eventfd_write) (void *object, int fd, uint64_t count);
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int (*eventfd_read) (void *object, int fd, uint64_t *count);
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/* signals */
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int (*signalfd_create) (void *object, int signal, int flags);
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int (*signalfd_read) (void *object, int fd, int *signal);
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};
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#define spa_system_method_r(o,method,version,...) \
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({ \
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int _res = -ENOTSUP; \
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struct spa_system *_o = o; \
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spa_interface_call_res(&_o->iface, \
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struct spa_system_methods, _res, \
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method, version, ##__VA_ARGS__); \
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_res; \
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})
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#define spa_system_read(s,...) spa_system_method_r(s,read,0,__VA_ARGS__)
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#define spa_system_write(s,...) spa_system_method_r(s,write,0,__VA_ARGS__)
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#define spa_system_ioctl(s,...) spa_system_method_r(s,ioctl,0,__VA_ARGS__)
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#define spa_system_close(s,...) spa_system_method_r(s,close,0,__VA_ARGS__)
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#define spa_system_clock_gettime(s,...) spa_system_method_r(s,clock_gettime,0,__VA_ARGS__)
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#define spa_system_clock_getres(s,...) spa_system_method_r(s,clock_getres,0,__VA_ARGS__)
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#define spa_system_pollfd_create(s,...) spa_system_method_r(s,pollfd_create,0,__VA_ARGS__)
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#define spa_system_pollfd_add(s,...) spa_system_method_r(s,pollfd_add,0,__VA_ARGS__)
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#define spa_system_pollfd_mod(s,...) spa_system_method_r(s,pollfd_mod,0,__VA_ARGS__)
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#define spa_system_pollfd_del(s,...) spa_system_method_r(s,pollfd_del,0,__VA_ARGS__)
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#define spa_system_pollfd_wait(s,...) spa_system_method_r(s,pollfd_wait,0,__VA_ARGS__)
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#define spa_system_timerfd_create(s,...) spa_system_method_r(s,timerfd_create,0,__VA_ARGS__)
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#define spa_system_timerfd_settime(s,...) spa_system_method_r(s,timerfd_settime,0,__VA_ARGS__)
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#define spa_system_timerfd_gettime(s,...) spa_system_method_r(s,timerfd_gettime,0,__VA_ARGS__)
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#define spa_system_timerfd_read(s,...) spa_system_method_r(s,timerfd_read,0,__VA_ARGS__)
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#define spa_system_eventfd_create(s,...) spa_system_method_r(s,eventfd_create,0,__VA_ARGS__)
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#define spa_system_eventfd_write(s,...) spa_system_method_r(s,eventfd_write,0,__VA_ARGS__)
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#define spa_system_eventfd_read(s,...) spa_system_method_r(s,eventfd_read,0,__VA_ARGS__)
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#define spa_system_signalfd_create(s,...) spa_system_method_r(s,signalfd_create,0,__VA_ARGS__)
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#define spa_system_signalfd_read(s,...) spa_system_method_r(s,signalfd_read,0,__VA_ARGS__)
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* SPA_SYSTEM_H */
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