diff --git a/src/modules/module-protocol-pulse/modules/module-virtual-sink.c b/src/modules/module-protocol-pulse/modules/module-virtual-sink.c new file mode 100644 index 000000000..a9ed6f354 --- /dev/null +++ b/src/modules/module-protocol-pulse/modules/module-virtual-sink.c @@ -0,0 +1,179 @@ +/* PipeWire */ +/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans */ +/* SPDX-License-Identifier: MIT */ + +#include +#include +#include +#include + +#include "../defs.h" +#include "../module.h" + +#define NAME "virtual-sink" + +PW_LOG_TOPIC_STATIC(mod_topic, "mod." NAME); +#define PW_LOG_TOPIC_DEFAULT mod_topic + +struct module_virtual_sink_data { + struct module *module; + + struct pw_impl_module *mod; + struct spa_hook mod_listener; + + struct pw_properties *global_props; + struct pw_properties *capture_props; + struct pw_properties *playback_props; +}; + +static void module_destroy(void *data) +{ + struct module_virtual_sink_data *d = data; + spa_hook_remove(&d->mod_listener); + d->mod = NULL; + module_schedule_unload(d->module); +} + +static const struct pw_impl_module_events module_events = { + PW_VERSION_IMPL_MODULE_EVENTS, + .destroy = module_destroy +}; + +static int module_virtual_sink_load(struct module *module) +{ + struct module_virtual_sink_data *data = module->user_data; + FILE *f; + char *args; + size_t size; + + pw_properties_setf(data->capture_props, PW_KEY_NODE_GROUP, "virtual-sink-%u", module->index); + pw_properties_setf(data->playback_props, PW_KEY_NODE_GROUP, "virtual-sink-%u", module->index); + pw_properties_setf(data->capture_props, "pulse.module.id", "%u", module->index); + pw_properties_setf(data->playback_props, "pulse.module.id", "%u", module->index); + + if ((f = open_memstream(&args, &size)) == NULL) + return -errno; + + fprintf(f, "{"); + pw_properties_serialize_dict(f, &data->global_props->dict, 0); + fprintf(f, " capture.props = {"); + pw_properties_serialize_dict(f, &data->capture_props->dict, 0); + fprintf(f, " } playback.props = {"); + pw_properties_serialize_dict(f, &data->playback_props->dict, 0); + fprintf(f, " } }"); + fclose(f); + + data->mod = pw_context_load_module(module->impl->context, + "libpipewire-module-loopback", + args, NULL); + free(args); + + if (data->mod == NULL) + return -errno; + + pw_impl_module_add_listener(data->mod, + &data->mod_listener, + &module_events, data); + + return 0; +} + +static int module_virtual_sink_unload(struct module *module) +{ + struct module_virtual_sink_data *d = module->user_data; + + if (d->mod) { + spa_hook_remove(&d->mod_listener); + pw_impl_module_destroy(d->mod); + d->mod = NULL; + } + + pw_properties_free(d->capture_props); + pw_properties_free(d->playback_props); + pw_properties_free(d->global_props); + + return 0; +} + +static const struct spa_dict_item module_virtual_sink_info[] = { + { PW_KEY_MODULE_AUTHOR, "Wim Taymans " }, + { PW_KEY_MODULE_DESCRIPTION, "Virtual sink" }, + { PW_KEY_MODULE_USAGE, "sink_name= " + "sink_properties= " + "master= " + "channels= " + "channel_map= " + "use_volume_sharing= " + "force_flat_volume= " }, + { PW_KEY_MODULE_VERSION, PACKAGE_VERSION }, +}; + +static int module_virtual_sink_prepare(struct module * const module) +{ + struct module_virtual_sink_data * const d = module->user_data; + struct pw_properties * const props = module->props; + struct pw_properties *global_props = NULL, *playback_props = NULL, *capture_props = NULL; + const char *str; + struct spa_audio_info_raw info = { 0 }; + int res; + + PW_LOG_TOPIC_INIT(mod_topic); + + global_props = pw_properties_new(NULL, NULL); + capture_props = pw_properties_new(NULL, NULL); + playback_props = pw_properties_new(NULL, NULL); + if (!global_props || !capture_props || !playback_props) { + res = -EINVAL; + goto out; + } + + if ((str = pw_properties_get(props, "sink_name")) != NULL) { + pw_properties_set(global_props, PW_KEY_NODE_NAME, str); + pw_properties_set(global_props, PW_KEY_NODE_DESCRIPTION, str); + pw_properties_set(props, "sink_name", NULL); + } else { + pw_properties_set(global_props, PW_KEY_NODE_NAME, "vsink"); + pw_properties_set(global_props, PW_KEY_NODE_DESCRIPTION, "Virtual Sink"); + } + if ((str = pw_properties_get(props, "sink_properties")) != NULL) { + module_args_add_props(capture_props, str); + pw_properties_set(props, "sink_properties", NULL); + } + pw_properties_set(playback_props, PW_KEY_NODE_PASSIVE, "true"); + if (pw_properties_get(capture_props, PW_KEY_MEDIA_CLASS) == NULL) + pw_properties_set(capture_props, PW_KEY_MEDIA_CLASS, "Audio/Sink"); + + if ((str = pw_properties_get(props, "master")) != NULL) { + pw_properties_set(playback_props, PW_KEY_TARGET_OBJECT, str); + pw_properties_set(props, "master", NULL); + } + + if (module_args_to_audioinfo_keys(module->impl, props, + NULL, NULL, "channels", "channel_map", &info) < 0) { + res = -EINVAL; + goto out; + } + audioinfo_to_properties(&info, global_props); + + d->module = module; + d->global_props = global_props; + d->capture_props = capture_props; + d->playback_props = playback_props; + + return 0; +out: + pw_properties_free(global_props); + pw_properties_free(playback_props); + pw_properties_free(capture_props); + + return res; +} + +DEFINE_MODULE_INFO(module_virtual_sink) = { + .name = "module-virtual-sink", + .prepare = module_virtual_sink_prepare, + .load = module_virtual_sink_load, + .unload = module_virtual_sink_unload, + .properties = &SPA_DICT_INIT_ARRAY(module_virtual_sink_info), + .data_size = sizeof(struct module_virtual_sink_data), +}; diff --git a/src/modules/module-protocol-pulse/modules/module-virtual-source.c b/src/modules/module-protocol-pulse/modules/module-virtual-source.c new file mode 100644 index 000000000..731822b91 --- /dev/null +++ b/src/modules/module-protocol-pulse/modules/module-virtual-source.c @@ -0,0 +1,188 @@ +/* PipeWire */ +/* SPDX-FileCopyrightText: Copyright © 2021 Wim Taymans */ +/* SPDX-FileCopyrightText: Copyright © 2021 Arun Raghavan */ +/* SPDX-License-Identifier: MIT */ + +#include +#include +#include +#include + +#include "../defs.h" +#include "../module.h" + +#define NAME "virtual-source" + +PW_LOG_TOPIC_STATIC(mod_topic, "mod." NAME); +#define PW_LOG_TOPIC_DEFAULT mod_topic + +struct module_virtual_source_data { + struct module *module; + + struct pw_impl_module *mod; + struct spa_hook mod_listener; + + struct pw_properties *global_props; + struct pw_properties *capture_props; + struct pw_properties *playback_props; +}; + +static void module_destroy(void *data) +{ + struct module_virtual_source_data *d = data; + spa_hook_remove(&d->mod_listener); + d->mod = NULL; + module_schedule_unload(d->module); +} + +static const struct pw_impl_module_events module_events = { + PW_VERSION_IMPL_MODULE_EVENTS, + .destroy = module_destroy +}; + +static int module_virtual_source_load(struct module *module) +{ + struct module_virtual_source_data *data = module->user_data; + FILE *f; + char *args; + size_t size; + + pw_properties_setf(data->capture_props, PW_KEY_NODE_GROUP, "virtual-source-%u", module->index); + pw_properties_setf(data->playback_props, PW_KEY_NODE_GROUP, "virtual-source-%u", module->index); + pw_properties_setf(data->capture_props, "pulse.module.id", "%u", module->index); + pw_properties_setf(data->playback_props, "pulse.module.id", "%u", module->index); + + if ((f = open_memstream(&args, &size)) == NULL) + return -errno; + + fprintf(f, "{"); + pw_properties_serialize_dict(f, &data->global_props->dict, 0); + fprintf(f, " capture.props = {"); + pw_properties_serialize_dict(f, &data->capture_props->dict, 0); + fprintf(f, " } playback.props = {"); + pw_properties_serialize_dict(f, &data->playback_props->dict, 0); + fprintf(f, " } }"); + fclose(f); + + data->mod = pw_context_load_module(module->impl->context, + "libpipewire-module-loopback", + args, NULL); + free(args); + + if (data->mod == NULL) + return -errno; + + pw_impl_module_add_listener(data->mod, + &data->mod_listener, + &module_events, data); + + return 0; +} + +static int module_virtual_source_unload(struct module *module) +{ + struct module_virtual_source_data *d = module->user_data; + + if (d->mod) { + spa_hook_remove(&d->mod_listener); + pw_impl_module_destroy(d->mod); + d->mod = NULL; + } + + pw_properties_free(d->capture_props); + pw_properties_free(d->playback_props); + pw_properties_free(d->global_props); + + return 0; +} + +static const struct spa_dict_item module_virtual_source_info[] = { + { PW_KEY_MODULE_AUTHOR, "Arun Raghavan " }, + { PW_KEY_MODULE_DESCRIPTION, "Loopback from source to sink" }, + { PW_KEY_MODULE_USAGE, "source_name= " + "source_properties= " + "master= " + "uplink_sink= (optional)" + "channels= " + "channel_map= " + "use_volume_sharing= " + "force_flat_volume= " }, + { PW_KEY_MODULE_VERSION, PACKAGE_VERSION }, +}; + +static int module_virtual_source_prepare(struct module * const module) +{ + struct module_virtual_source_data * const d = module->user_data; + struct pw_properties * const props = module->props; + struct pw_properties *global_props = NULL, *playback_props = NULL, *capture_props = NULL; + const char *str; + struct spa_audio_info_raw info = { 0 }; + int res; + + PW_LOG_TOPIC_INIT(mod_topic); + + global_props = pw_properties_new(NULL, NULL); + capture_props = pw_properties_new(NULL, NULL); + playback_props = pw_properties_new(NULL, NULL); + if (!global_props || !capture_props || !playback_props) { + res = -EINVAL; + goto out; + } + + if ((str = pw_properties_get(props, "source_name")) != NULL) { + pw_properties_set(global_props, PW_KEY_NODE_NAME, str); + pw_properties_set(global_props, PW_KEY_NODE_DESCRIPTION, str); + pw_properties_set(props, "source_name", NULL); + } else { + pw_properties_set(global_props, PW_KEY_NODE_NAME, "vsource"); + pw_properties_set(global_props, PW_KEY_NODE_DESCRIPTION, "Virtual Source"); + } + if ((str = pw_properties_get(props, "source_properties")) != NULL) { + module_args_add_props(playback_props, str); + pw_properties_set(props, "source_properties", NULL); + } + pw_properties_set(capture_props, PW_KEY_NODE_PASSIVE, "true"); + if (pw_properties_get(playback_props, PW_KEY_MEDIA_CLASS) == NULL) + pw_properties_set(playback_props, PW_KEY_MEDIA_CLASS, "Audio/Source"); + + if ((str = pw_properties_get(props, "master")) != NULL) { + if (spa_strendswith(str, ".monitor")) { + pw_properties_setf(capture_props, PW_KEY_TARGET_OBJECT, + "%.*s", (int)strlen(str)-8, str); + pw_properties_set(capture_props, PW_KEY_STREAM_CAPTURE_SINK, + "true"); + } else { + pw_properties_set(capture_props, PW_KEY_TARGET_OBJECT, str); + } + pw_properties_set(props, "master", NULL); + } + + if (module_args_to_audioinfo_keys(module->impl, props, + NULL, NULL, "channels", "channel_map", &info) < 0) { + res = -EINVAL; + goto out; + } + audioinfo_to_properties(&info, global_props); + + d->module = module; + d->global_props = global_props; + d->capture_props = capture_props; + d->playback_props = playback_props; + + return 0; +out: + pw_properties_free(global_props); + pw_properties_free(playback_props); + pw_properties_free(capture_props); + + return res; +} + +DEFINE_MODULE_INFO(module_virtual_source) = { + .name = "module-virtual-source", + .prepare = module_virtual_source_prepare, + .load = module_virtual_source_load, + .unload = module_virtual_source_unload, + .properties = &SPA_DICT_INIT_ARRAY(module_virtual_source_info), + .data_size = sizeof(struct module_virtual_source_data), +};