pipewire/src/modules/spa/module-device.c
Wim Taymans c6a7b3eedb channelmix: implement per channel volume
Implement per channel volume on channelmix. Extend control on stream to
take an array of values when possible.

Remove name argument from pw_node_new and pw_device_new. We can pass
this as a property instead.

Improve properties on nodes to more closely match what pulseaudio does.
Don't let the monitor do too much with the udev properties but let the
session manager set the description and icon-names.

Remove some change_mask flags for things that don't change in
introspect. Use the flags to mark changes in -cli and -monitor.
2019-08-12 15:14:39 +02:00

130 lines
3.4 KiB
C

/* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <getopt.h>
#include <limits.h>
#include <pipewire/core.h>
#include <pipewire/log.h>
#include <pipewire/module.h>
#include <pipewire/utils.h>
#include <pipewire/keys.h>
#include "spa-monitor.h"
#include "spa-device.h"
#define MODULE_USAGE "<factory> [key=value ...]"
static const struct spa_dict_item module_props[] = {
{ PW_KEY_MODULE_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" },
{ PW_KEY_MODULE_DESCRIPTION, "Load and manage an SPA device" },
{ PW_KEY_MODULE_USAGE, MODULE_USAGE },
{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
};
struct device_data {
struct pw_device *this;
struct pw_core *core;
struct spa_hook module_listener;
};
static void module_destroy(void *_data)
{
struct device_data *data = _data;
spa_hook_remove(&data->module_listener);
pw_device_destroy(data->this);
}
static const struct pw_module_events module_events = {
PW_VERSION_MODULE_EVENTS,
.destroy = module_destroy,
};
SPA_EXPORT
int pipewire__module_init(struct pw_module *module, const char *args)
{
struct pw_properties *props = NULL;
char **argv = NULL;
int n_tokens;
struct pw_core *core = pw_module_get_core(module);
struct pw_device *device;
struct device_data *data;
int res;
if (args == NULL)
goto error_arguments;
argv = pw_split_strv(args, " \t", 2, &n_tokens);
if (n_tokens < 1)
goto error_arguments;
if (n_tokens == 2) {
props = pw_properties_new_string(argv[1]);
if (props == NULL) {
res = -errno;
goto error_exit_cleanup;
}
}
device = pw_spa_device_load(core,
NULL,
pw_module_get_global(module),
argv[0],
0,
props,
sizeof(struct device_data));
if (device == NULL) {
res = -errno;
goto error_exit_cleanup;
}
pw_free_strv(argv);
data = pw_spa_device_get_user_data(device);
data->this = device;
data->core = core;
pw_log_debug("module %p: new", module);
pw_module_add_listener(module, &data->module_listener, &module_events, data);
pw_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props));
return 0;
error_arguments:
res = -EINVAL;
pw_log_error("usage: module-spa-device " MODULE_USAGE);
goto error_exit_cleanup;
error_exit_cleanup:
if (argv)
pw_free_strv(argv);
return res;
}