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-rw-r--r--spa/plugins/jack/jack-device.c457
1 files changed, 457 insertions, 0 deletions
diff --git a/spa/plugins/jack/jack-device.c b/spa/plugins/jack/jack-device.c
new file mode 100644
index 0000000..0ae67d0
--- /dev/null
+++ b/spa/plugins/jack/jack-device.c
@@ -0,0 +1,457 @@
+/* Spa JACK Device
+ *
+ * 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 <stddef.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <poll.h>
+
+#include <spa/support/log.h>
+#include <spa/utils/type.h>
+#include <spa/utils/keys.h>
+#include <spa/utils/names.h>
+#include <spa/utils/result.h>
+#include <spa/utils/string.h>
+#include <spa/node/node.h>
+#include <spa/support/loop.h>
+#include <spa/support/plugin.h>
+#include <spa/monitor/device.h>
+#include <spa/monitor/utils.h>
+#include <spa/param/param.h>
+#include <spa/pod/filter.h>
+#include <spa/pod/parser.h>
+#include <spa/debug/pod.h>
+#include <spa/debug/log.h>
+
+#include "jack-client.h"
+
+#define NAME "jack-device"
+
+#define MAX_DEVICES 64
+
+#define DEFAULT_SERVER "default"
+
+struct props {
+ char server[128];
+};
+
+static void reset_props(struct props *props)
+{
+ strncpy(props->server, DEFAULT_SERVER, 64);
+}
+
+struct node {
+ enum spa_direction direction;
+};
+
+struct impl {
+ struct spa_handle handle;
+ struct spa_device device;
+
+ struct spa_log *log;
+ struct spa_hook_list hooks;
+
+ struct props props;
+
+ struct node nodes[2];
+ uint32_t n_nodes;
+
+ uint32_t profile;
+
+ struct spa_jack_client client;
+};
+
+static int emit_node(struct impl *this, uint32_t id)
+{
+ struct spa_dict_item items[6];
+ struct spa_device_object_info info;
+ char jack_client[64];
+
+ info = SPA_DEVICE_OBJECT_INFO_INIT();
+ info.type = SPA_TYPE_INTERFACE_Node;
+ if (this->nodes[id].direction == SPA_DIRECTION_INPUT)
+ info.factory_name = SPA_NAME_API_JACK_SINK;
+ else
+ info.factory_name = SPA_NAME_API_JACK_SOURCE;
+
+ info.change_mask = SPA_DEVICE_OBJECT_CHANGE_MASK_PROPS;
+ snprintf(jack_client, sizeof(jack_client), "pointer:%p", &this->client);
+ items[0] = SPA_DICT_ITEM_INIT(SPA_KEY_API_JACK_CLIENT, jack_client);
+ info.props = &SPA_DICT_INIT(items, 1);
+
+ spa_device_emit_object_info(&this->hooks, id, &info);
+
+ return 0;
+}
+
+static int activate_profile(struct impl *this, uint32_t id)
+{
+ int res = 0;
+ uint32_t i, n;
+ const char ** ports;
+
+ spa_log_debug(this->log, "profile %d", id);
+ if (this->profile == id)
+ return 0;
+
+ for (i = 0; i < this->n_nodes; i++)
+ spa_device_emit_object_info(&this->hooks, i, NULL);
+ this->n_nodes = 0;
+
+ spa_jack_client_close(&this->client);
+
+ if (id == 0)
+ goto done;
+
+ res = spa_jack_client_open(&this->client, "PipeWire", NULL);
+ if (res < 0) {
+ spa_log_error(this->log, NAME" %p: can't open client: %s",
+ this, spa_strerror(res));
+ return res;
+ }
+ n = 0;
+ ports = jack_get_ports(this->client.client,
+ NULL, JACK_DEFAULT_AUDIO_TYPE,
+ JackPortIsPhysical|JackPortIsOutput);
+ if (ports) {
+ jack_free(ports);
+ this->nodes[n].direction = SPA_DIRECTION_OUTPUT;
+ emit_node(this, n++);
+ }
+
+ ports = jack_get_ports(this->client.client,
+ NULL, JACK_DEFAULT_AUDIO_TYPE,
+ JackPortIsPhysical|JackPortIsInput);
+ if (ports) {
+ jack_free(ports);
+ this->nodes[n].direction = SPA_DIRECTION_INPUT;
+ emit_node(this, n++);
+ }
+ this->n_nodes = n;
+done:
+ this->profile = id;
+
+ return res;
+}
+
+static int emit_info(struct impl *this, bool full)
+{
+ int err = 0;
+ struct spa_dict_item items[10];
+ struct spa_device_info dinfo;
+ struct spa_param_info params[2];
+ char name[200];
+
+ dinfo = SPA_DEVICE_INFO_INIT();
+
+ dinfo.change_mask = SPA_DEVICE_CHANGE_MASK_PROPS;
+ items[0] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_API, "jack");
+ items[1] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_NICK, "jack");
+ if (spa_streq(this->props.server, "default"))
+ snprintf(name, sizeof(name), "JACK Client");
+ else
+ snprintf(name, sizeof(name), "JACK Client (%s)", this->props.server);
+ items[2] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_NAME, name);
+ items[3] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_DESCRIPTION, name);
+ items[4] = SPA_DICT_ITEM_INIT(SPA_KEY_API_JACK_SERVER, this->props.server);
+ items[5] = SPA_DICT_ITEM_INIT(SPA_KEY_MEDIA_CLASS, "Audio/Device");
+ dinfo.props = &SPA_DICT_INIT(items, 6);
+
+ dinfo.change_mask |= SPA_DEVICE_CHANGE_MASK_PARAMS;
+ params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumProfile, SPA_PARAM_INFO_READ);
+ params[1] = SPA_PARAM_INFO(SPA_PARAM_Profile, SPA_PARAM_INFO_READWRITE);
+ dinfo.n_params = SPA_N_ELEMENTS(params);
+ dinfo.params = params;
+
+ spa_device_emit_info(&this->hooks, &dinfo);
+
+ return err;
+}
+
+static int impl_add_listener(void *object,
+ struct spa_hook *listener,
+ const struct spa_device_events *events,
+ void *data)
+{
+ struct impl *this = object;
+ struct spa_hook_list save;
+ uint32_t i;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+ spa_return_val_if_fail(events != NULL, -EINVAL);
+
+ spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
+
+ if (events->info)
+ emit_info(this, true);
+
+ if (events->object_info) {
+ for (i = 0; i < this->n_nodes; i++)
+ emit_node(this, i);
+ }
+
+ spa_hook_list_join(&this->hooks, &save);
+
+ return 0;
+}
+
+
+static int impl_sync(void *object, int seq)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ spa_device_emit_result(&this->hooks, seq, 0, 0, NULL);
+
+ return 0;
+}
+
+static struct spa_pod *build_profile(struct impl *this, struct spa_pod_builder *b,
+ uint32_t id, uint32_t index)
+{
+ struct spa_pod_frame f[2];
+ const char *name, *desc;
+
+ switch (index) {
+ case 0:
+ name = "off";
+ desc = "Off";
+ break;
+ case 1:
+ name = "on";
+ desc = "On";
+ break;
+ default:
+ errno = EINVAL;
+ return NULL;
+ }
+
+ spa_pod_builder_push_object(b, &f[0], SPA_TYPE_OBJECT_ParamProfile, id);
+ spa_pod_builder_add(b,
+ SPA_PARAM_PROFILE_index, SPA_POD_Int(index),
+ SPA_PARAM_PROFILE_name, SPA_POD_String(name),
+ SPA_PARAM_PROFILE_description, SPA_POD_String(desc),
+ 0);
+ return spa_pod_builder_pop(b, &f[0]);
+}
+
+static int impl_enum_params(void *object, int seq,
+ uint32_t id, uint32_t start, uint32_t num,
+ const struct spa_pod *filter)
+{
+ struct impl *this = object;
+ struct spa_pod *param;
+ struct spa_pod_builder b = { 0 };
+ uint8_t buffer[1024];
+ struct spa_result_device_params result;
+ uint32_t count = 0;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+ spa_return_val_if_fail(num != 0, -EINVAL);
+
+ result.id = id;
+ result.next = start;
+ next:
+ result.index = result.next++;
+
+ spa_pod_builder_init(&b, buffer, sizeof(buffer));
+
+ switch (id) {
+ case SPA_PARAM_EnumProfile:
+ {
+ switch (result.index) {
+ case 0:
+ case 1:
+ param = build_profile(this, &b, id, result.index);
+ break;
+ default:
+ return 0;
+ }
+ break;
+ }
+ case SPA_PARAM_Profile:
+ {
+ switch (result.index) {
+ case 0:
+ param = build_profile(this, &b, id, this->profile);
+ break;
+ default:
+ return 0;
+ }
+ break;
+ }
+ default:
+ return -ENOENT;
+ }
+
+ if (spa_pod_filter(&b, &result.param, param, filter) < 0)
+ goto next;
+
+ spa_device_emit_result(&this->hooks, seq, 0,
+ SPA_RESULT_TYPE_DEVICE_PARAMS, &result);
+
+ if (++count != num)
+ goto next;
+
+ return 0;
+}
+
+static int impl_set_param(void *object,
+ uint32_t id, uint32_t flags,
+ const struct spa_pod *param)
+{
+ struct impl *this = object;
+ int res;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ switch (id) {
+ case SPA_PARAM_Profile:
+ {
+ uint32_t idx;
+
+ if ((res = spa_pod_parse_object(param,
+ SPA_TYPE_OBJECT_ParamProfile, NULL,
+ SPA_PARAM_PROFILE_index, SPA_POD_Int(&idx))) < 0) {
+ spa_log_warn(this->log, "can't parse profile");
+ spa_debug_log_pod(this->log, SPA_LOG_LEVEL_DEBUG, 0, NULL, param);
+ return res;
+ }
+ activate_profile(this, idx);
+ break;
+ }
+ default:
+ return -ENOENT;
+ }
+ return 0;
+}
+
+static const struct spa_device_methods impl_device = {
+ SPA_VERSION_DEVICE_METHODS,
+ .add_listener = impl_add_listener,
+ .sync = impl_sync,
+ .enum_params = impl_enum_params,
+ .set_param = impl_set_param,
+};
+
+static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface)
+{
+ struct impl *this;
+
+ spa_return_val_if_fail(handle != NULL, -EINVAL);
+ spa_return_val_if_fail(interface != NULL, -EINVAL);
+
+ this = (struct impl *) handle;
+
+ if (spa_streq(type, SPA_TYPE_INTERFACE_Device))
+ *interface = &this->device;
+ else
+ return -ENOENT;
+
+ return 0;
+}
+
+static int impl_clear(struct spa_handle *handle)
+{
+ struct impl *this;
+
+ spa_return_val_if_fail(handle != NULL, -EINVAL);
+
+ this = (struct impl *) handle;
+
+ activate_profile(this, 0);
+ return 0;
+}
+
+static size_t
+impl_get_size(const struct spa_handle_factory *factory,
+ const struct spa_dict *params)
+{
+ return sizeof(struct impl);
+}
+
+static int
+impl_init(const struct spa_handle_factory *factory,
+ struct spa_handle *handle,
+ const struct spa_dict *info,
+ const struct spa_support *support,
+ uint32_t n_support)
+{
+ struct impl *this;
+ const char *str;
+
+ spa_return_val_if_fail(factory != NULL, -EINVAL);
+ spa_return_val_if_fail(handle != NULL, -EINVAL);
+
+ handle->get_interface = impl_get_interface;
+ handle->clear = impl_clear;
+
+ this = (struct impl *) handle;
+
+ this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
+
+ this->device.iface = SPA_INTERFACE_INIT(
+ SPA_TYPE_INTERFACE_Device,
+ SPA_VERSION_DEVICE,
+ &impl_device, this);
+ spa_hook_list_init(&this->hooks);
+
+ reset_props(&this->props);
+
+ if (info && (str = spa_dict_lookup(info, SPA_KEY_API_JACK_SERVER)))
+ snprintf(this->props.server, 64, "%s", str);
+ return 0;
+}
+
+static const struct spa_interface_info impl_interfaces[] = {
+ {SPA_TYPE_INTERFACE_Device,},
+};
+
+static int
+impl_enum_interface_info(const struct spa_handle_factory *factory,
+ const struct spa_interface_info **info,
+ uint32_t *index)
+{
+ spa_return_val_if_fail(factory != NULL, -EINVAL);
+ spa_return_val_if_fail(info != NULL, -EINVAL);
+ spa_return_val_if_fail(index != NULL, -EINVAL);
+
+ if (*index >= SPA_N_ELEMENTS(impl_interfaces))
+ return 0;
+
+ *info = &impl_interfaces[(*index)++];
+ return 1;
+}
+
+const struct spa_handle_factory spa_jack_device_factory = {
+ SPA_VERSION_HANDLE_FACTORY,
+ SPA_NAME_API_JACK_DEVICE,
+ NULL,
+ impl_get_size,
+ impl_init,
+ impl_enum_interface_info,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 20:16:52 +0000