diff options
Diffstat (limited to 'spa/plugins/jack')
| -rw-r--r-- | spa/plugins/jack/jack-client.c | 113 | ||||
| -rw-r--r-- | spa/plugins/jack/jack-client.h | 84 | ||||
| -rw-r--r-- | spa/plugins/jack/jack-device.c | 457 | ||||
| -rw-r--r-- | spa/plugins/jack/jack-sink.c | 924 | ||||
| -rw-r--r-- | spa/plugins/jack/jack-source.c | 946 | ||||
| -rw-r--r-- | spa/plugins/jack/meson.build | 12 | ||||
| -rw-r--r-- | spa/plugins/jack/plugin.c | 54 |
7 files changed, 2590 insertions, 0 deletions
diff --git a/spa/plugins/jack/jack-client.c b/spa/plugins/jack/jack-client.c new file mode 100644 index 0000000..b3cdcc7 --- /dev/null +++ b/spa/plugins/jack/jack-client.c @@ -0,0 +1,113 @@ +/* Spa JACK Client + * + * 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 <errno.h> + +#include "jack-client.h" + +static int jack_process(jack_nframes_t nframes, void *arg) +{ + struct spa_jack_client *client = arg; + + jack_get_cycle_times(client->client, + &client->current_frames, &client->current_usecs, + &client->next_usecs, &client->period_usecs); + + jack_transport_query (client->client, &client->pos); + + client->buffer_size = nframes; + + spa_jack_client_emit_process(client); + + return 0; +} + +static void jack_shutdown(void* arg) +{ + struct spa_jack_client *client = arg; + + spa_jack_client_emit_shutdown(client); + + spa_hook_list_init(&client->listener_list); + client->client = NULL; +} + +static int status_to_result(jack_status_t status) +{ + int res; + + if (status & JackInvalidOption) + res = -EINVAL; + else if (status & JackServerFailed) + res = -ECONNREFUSED; + else if (status & JackVersionError) + res = -EPROTO; + else if (status & JackInitFailure) + res = -EIO; + else + res = -EFAULT; + + return res; +} + +int spa_jack_client_open(struct spa_jack_client *client, + const char *client_name, const char *server_name) +{ + jack_status_t status; + + if (client->client) + return 0; + + client->client = jack_client_open(client_name, + JackNoStartServer, &status, NULL); + + if (client->client == NULL) + return status_to_result(status); + + spa_hook_list_init(&client->listener_list); + + jack_set_process_callback(client->client, jack_process, client); + jack_on_shutdown(client->client, jack_shutdown, client); + client->frame_rate = jack_get_sample_rate(client->client); + client->buffer_size = jack_get_buffer_size(client->client); + + return 0; +} + + +int spa_jack_client_close(struct spa_jack_client *client) +{ + if (client->client == NULL) + return 0; + + spa_jack_client_emit_destroy(client); + + if (jack_client_close(client->client) != 0) + return -EIO; + + spa_hook_list_init(&client->listener_list); + client->client = NULL; + + return 0; +} diff --git a/spa/plugins/jack/jack-client.h b/spa/plugins/jack/jack-client.h new file mode 100644 index 0000000..b758ba0 --- /dev/null +++ b/spa/plugins/jack/jack-client.h @@ -0,0 +1,84 @@ +/* Spa JACK Client + * + * 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. + */ + +#ifndef SPA_JACK_CLIENT_H +#define SPA_JACK_CLIENT_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <spa/utils/defs.h> +#include <spa/utils/hook.h> +#include <spa/support/log.h> + +#include <jack/jack.h> + +struct spa_jack_client_events { +#define SPA_VERSION_JACK_CLIENT_EVENTS 0 + uint32_t version; + + void (*destroy) (void *data); + + void (*process) (void *data); + + void (*shutdown) (void *data); +}; + +struct spa_jack_client { + struct spa_log *log; + + jack_client_t *client; + + jack_nframes_t frame_rate; + jack_nframes_t buffer_size; + jack_nframes_t current_frames; + jack_time_t current_usecs; + jack_time_t next_usecs; + float period_usecs; + jack_position_t pos; + + struct spa_hook_list listener_list; +}; + +#define spa_jack_client_emit(c,m,v,...) spa_hook_list_call(&(c)->listener_list, \ + struct spa_jack_client_events, \ + m, v, ##__VA_ARGS__) +#define spa_jack_client_emit_destroy(c) spa_jack_client_emit(c, destroy, 0) +#define spa_jack_client_emit_process(c) spa_jack_client_emit(c, process, 0) +#define spa_jack_client_emit_shutdown(c) spa_jack_client_emit(c, shutdown, 0) + +#define spa_jack_client_add_listener(c,listener,events,data) \ + spa_hook_list_append(&(c)->listener_list, listener, events, data) + +int spa_jack_client_open(struct spa_jack_client *client, + const char *client_name, const char *server_name); +int spa_jack_client_close(struct spa_jack_client *client); + + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* SPA_JACK_CLIENT_H */ 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, +}; diff --git a/spa/plugins/jack/jack-sink.c b/spa/plugins/jack/jack-sink.c new file mode 100644 index 0000000..e9ca5a8 --- /dev/null +++ b/spa/plugins/jack/jack-sink.c @@ -0,0 +1,924 @@ +/* Spa jack client + * + * 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 <errno.h> +#include <stddef.h> +#include <unistd.h> +#include <string.h> +#include <stdio.h> + +#include <jack/jack.h> + +#include <spa/support/plugin.h> +#include <spa/support/log.h> +#include <spa/support/loop.h> +#include <spa/utils/list.h> +#include <spa/utils/keys.h> +#include <spa/utils/names.h> +#include <spa/utils/string.h> +#include <spa/node/node.h> +#include <spa/node/utils.h> +#include <spa/node/io.h> +#include <spa/node/keys.h> +#include <spa/param/audio/format-utils.h> +#include <spa/param/param.h> +#include <spa/pod/filter.h> + +#include "jack-client.h" + +#define NAME "jack-sink" + +#define MAX_PORTS 128 +#define MAX_BUFFERS 8 +#define MAX_SAMPLES 8192 + +struct buffer { + uint32_t id; +#define BUFFER_FLAG_OUT (1<<0) + uint32_t flags; + struct spa_buffer *outbuf; + struct spa_list link; +}; + +struct port { + uint32_t id; + + uint64_t info_all; + struct spa_port_info info; + struct spa_dict_item items[4]; + struct spa_dict props; + struct spa_param_info params[5]; + + unsigned int have_format:1; + struct spa_audio_info current_format; + int stride; + + struct spa_io_buffers *io; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + jack_port_t *jack_port; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + struct spa_log *log; + struct spa_loop *data_loop; + + uint64_t info_all; + struct spa_node_info info; + struct spa_param_info params[5]; + + struct spa_hook_list hooks; + struct spa_callbacks callbacks; + + struct spa_io_clock *clock; + struct spa_io_position *position; + + struct port in_ports[MAX_PORTS]; + uint32_t n_in_ports; + + struct spa_audio_info current_format; + + struct spa_jack_client *client; + struct spa_hook client_listener; + + unsigned int started:1; +}; + +#define CHECK_IN_PORT(this,p) ((p) < this->n_in_ports) +#define CHECK_PORT(this,d,p) (d == SPA_DIRECTION_INPUT && CHECK_IN_PORT(this,p)) +#define GET_IN_PORT(this,p) (&this->in_ports[p]) +#define GET_PORT(this,d,p) GET_IN_PORT(this,p) + +static int impl_node_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_node_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_PropInfo: + return 0; + + case SPA_PARAM_Props: + return 0; + + case SPA_PARAM_EnumFormat: + case SPA_PARAM_Format: + switch (result.index) { + case 0: + param = spa_format_audio_dsp_build(&b, + id, &this->current_format.info.dsp); + break; + default: + return 0; + } + break; + + case SPA_PARAM_IO: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Clock), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_clock))); + break; + case 1: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Position), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_position))); + break; + default: + return 0; + } + break; + + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + case SPA_IO_Clock: + this->clock = data; + break; + case SPA_IO_Position: + this->position = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_set_param(void *object, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_send_command(void *object, const struct spa_command *command) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(command != NULL, -EINVAL); + + switch (SPA_NODE_COMMAND_ID(command)) { + case SPA_NODE_COMMAND_Start: + if (this->started) + return 0; + + this->started = true; + break; + + case SPA_NODE_COMMAND_Pause: + if (!this->started) + return 0; + + this->started = false; + break; + default: + return -ENOTSUP; + } + return 0; +} + +static void emit_node_info(struct impl *this, bool full) +{ + uint64_t old = full ? this->info.change_mask : 0; + if (full) + this->info.change_mask = this->info_all; + if (this->info.change_mask) { + struct spa_dict_item items[5]; + char latency[64]; + snprintf(latency, sizeof(latency), "%d/%d", + this->client->buffer_size, this->client->frame_rate); + items[0] = SPA_DICT_ITEM_INIT(SPA_KEY_MEDIA_CLASS, "Audio/Sink"); + items[1] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_NAME, "JACK System"); + items[2] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_DRIVER, "true"); + items[3] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_PAUSE_ON_IDLE, "false"); + items[4] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_LATENCY, latency); + this->info.props = &SPA_DICT_INIT_ARRAY(items); + spa_node_emit_info(&this->hooks, &this->info); + this->info.change_mask = old; + } +} + +static void emit_port_info(struct impl *this, struct port *port, bool full) +{ + uint64_t old = full ? port->info.change_mask : 0; + if (full) + port->info.change_mask = port->info_all; + if (port->info.change_mask) { + char* aliases[2]; + int n_aliases, n_items; + + aliases[0] = alloca(jack_port_name_size()); + aliases[1] = alloca(jack_port_name_size()); + n_aliases = jack_port_get_aliases(port->jack_port, aliases); + n_items = 1; + port->items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_PORT_NAME, + jack_port_short_name(port->jack_port)); + if (n_aliases > 0) + port->items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_OBJECT_PATH, aliases[0]); + if (n_aliases > 1) + port->items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_PORT_ALIAS, aliases[1]); + port->props = SPA_DICT_INIT(port->items, n_items); + + spa_node_emit_port_info(&this->hooks, + SPA_DIRECTION_INPUT, port->id, &port->info); + + port->info.change_mask = old; + } +} + +static int +impl_node_add_listener(void *object, + struct spa_hook *listener, + const struct spa_node_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_hook_list_isolate(&this->hooks, &save, listener, events, data); + + emit_node_info(this, true); + for (i = 0; i < this->n_in_ports; i++) + emit_port_info(this, GET_IN_PORT(this, i), true); + + spa_hook_list_join(&this->hooks, &save); + + return 0; +} + +static int +impl_node_set_callbacks(void *object, + const struct spa_node_callbacks *callbacks, + void *data) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + this->callbacks = SPA_CALLBACKS_INIT(callbacks, data); + + return 0; +} + +static void client_process(void *data) +{ + struct impl *this = data; + + if (this->clock) { + struct spa_io_clock *c = this->clock; + c->nsec = this->client->current_usecs * SPA_NSEC_PER_USEC; + c->rate = SPA_FRACTION(1, this->client->frame_rate); + c->position = this->client->current_frames; + c->duration = this->client->buffer_size; + c->delay = 0; + c->rate_diff = 1.0; + c->next_nsec = this->client->next_usecs * SPA_NSEC_PER_USEC; + } + if (this->position) { + jack_position_t *jp = &this->client->pos; + struct spa_io_position *p = this->position; + struct spa_io_segment *s; + + p->n_segments = 1; + s = &p->segments[0]; + + s->flags = 0; + s->position = jp->frame; + s->rate = 1.0; + if (jp->valid & JackPositionBBT) { + s->bar.flags = SPA_IO_SEGMENT_BAR_FLAG_VALID; + if (jp->valid & JackBBTFrameOffset) + s->bar.offset = jp->bbt_offset; + else + s->bar.offset = 0; + s->bar.signature_num = jp->beats_per_bar; + s->bar.signature_denom = jp->beat_type; + s->bar.bpm = jp->beats_per_minute; + s->bar.beat = jp->bar * jp->beats_per_bar + jp->beat; + } + } + spa_node_call_ready(&this->callbacks, SPA_STATUS_NEED_DATA); +} + +static const struct spa_jack_client_events client_events = { + SPA_VERSION_JACK_CLIENT_EVENTS, + .process = client_process, +}; + +static int init_port(struct impl *this, struct port *port) +{ + port->info_all = SPA_PORT_CHANGE_MASK_FLAGS | + SPA_PORT_CHANGE_MASK_PROPS | + SPA_PORT_CHANGE_MASK_PARAMS; + port->info = SPA_PORT_INFO_INIT(); + port->info.flags = SPA_PORT_FLAG_NO_REF; + + port->items[0] = SPA_DICT_ITEM_INIT(SPA_KEY_FORMAT_DSP, "32 bit float mono audio"); + port->props = SPA_DICT_INIT(port->items, 1); + port->info.props = &port->props; + + port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ); + port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + port->info.params = port->params; + port->info.n_params = 5; + + return 0; +} + +static int init_ports(struct impl *this) +{ + const char **ports; + uint32_t i; + jack_client_t *client = this->client->client; + int res; + + ports = jack_get_ports(client, + NULL, JACK_DEFAULT_AUDIO_TYPE, + JackPortIsPhysical|JackPortIsInput); + if (ports == NULL) { + spa_log_error(this->log, NAME" %p: can't enumerate ports", this); + res = -ENODEV; + goto exit; + } + + for (i = 0; ports[i]; i++) { + struct port *port = GET_IN_PORT(this, i); + jack_port_t *p = jack_port_by_name(client, ports[i]); + char *aliases[2]; + int n_aliases; + + port->id = i; + port->jack_port = jack_port_register(client, + jack_port_short_name(p), + jack_port_type(p), + JackPortIsOutput, 0); + if (port->jack_port == NULL) { + spa_log_error(this->log, NAME" %p: jack_port_register() %d (%s) failed", + this, i, ports[i]); + res = -EFAULT; + goto exit_free; + } + + aliases[0] = alloca(jack_port_name_size()); + aliases[1] = alloca(jack_port_name_size()); + + n_aliases = jack_port_get_aliases(p, aliases); + if (n_aliases > 0) + jack_port_set_alias(port->jack_port, aliases[0]); + if (n_aliases > 1) + jack_port_set_alias(port->jack_port, aliases[1]); + + init_port(this, port); + } + this->n_in_ports = i; + + this->current_format.info.dsp = SPA_AUDIO_INFO_DSP_INIT( + .format = SPA_AUDIO_FORMAT_DSP_F32); + + spa_jack_client_add_listener(this->client, + &this->client_listener, + &client_events, this); + + jack_activate(client); + + for (i = 0; ports[i]; i++) { + struct port *port = GET_IN_PORT(this, i); + if (jack_connect(client, jack_port_name(port->jack_port), ports[i])) { + spa_log_warn(this->log, NAME" %p: Failed to connect %s to %s", + this, jack_port_name(port->jack_port), ports[i]); + } + } + + res = 0; +exit_free: + jack_free(ports); +exit: + return res; +} + + +static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id, + const struct spa_dict *props) +{ + return -ENOTSUP; +} + +static int +impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id) +{ + return -ENOTSUP; +} + +static int port_enum_formats(struct impl *this, + enum spa_direction direction, uint32_t port_id, + uint32_t index, + const struct spa_pod *filter, + struct spa_pod **param, + struct spa_pod_builder *builder) +{ + switch (index) { + case 0: + *param = spa_pod_builder_add_object(builder, + SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat, + SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_dsp), + SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_DSP_F32)); + break; + default: + return 0; + } + return 1; +} + +static int +impl_node_port_enum_params(void *object, int seq, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct port *port; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_pod *param; + struct spa_result_node_params result; + uint32_t count = 0; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_EnumFormat: + if ((res = port_enum_formats(this, direction, port_id, + result.index, filter, ¶m, &b)) <= 0) + return res; + break; + + case SPA_PARAM_Format: + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_format_audio_dsp_build(&b, id, &port->current_format.info.dsp); + break; + + case SPA_PARAM_Buffers: + { + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamBuffers, id, + SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(2, 1, MAX_BUFFERS), + SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1), + SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int( + MAX_SAMPLES * port->stride, + 16 * port->stride, + MAX_SAMPLES * port->stride), + SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->stride)); + break; + } + case SPA_PARAM_IO: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Buffers), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers))); + break; + default: + return 0; + } + break; + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int clear_buffers(struct impl *this, struct port *port) +{ + if (port->n_buffers > 0) { + spa_log_debug(this->log, NAME " %p: clear buffers", this); + port->n_buffers = 0; + this->started = false; + } + return 0; +} + +static int port_set_format(struct impl *this, struct port *port, + uint32_t flags, + const struct spa_pod *format) +{ + int res; + + if (format == NULL) { + port->have_format = false; + clear_buffers(this, port); + } else { + struct spa_audio_info info = { 0 }; + + if ((res = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0) + return res; + + if (info.media_type != SPA_MEDIA_TYPE_audio && + info.media_subtype != SPA_MEDIA_SUBTYPE_dsp) + return -EINVAL; + + if (spa_format_audio_dsp_parse(format, &info.info.dsp) < 0) + return -EINVAL; + + if (info.info.dsp.format != SPA_AUDIO_FORMAT_DSP_F32) + return -EINVAL; + + port->stride = 4; + port->current_format = info; + port->have_format = true; + } + + port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS; + if (port->have_format) { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ); + } else { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + } + emit_port_info(this, port, false); + + return 0; +} + +static int +impl_node_port_set_param(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + struct port *port; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + switch (id) { + case SPA_PARAM_Format: + res = port_set_format(this, port, flags, param); + break; + default: + return -ENOENT; + } + return res; +} + +static int +impl_node_port_use_buffers(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t flags, + struct spa_buffer **buffers, + uint32_t n_buffers) +{ + struct impl *this = object; + struct port *port; + uint32_t i; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + clear_buffers(this, port); + + if (n_buffers > 0 && !port->have_format) + return -EIO; + if (n_buffers > MAX_BUFFERS) + return -ENOSPC; + + for (i = 0; i < n_buffers; i++) { + struct buffer *b; + + b = &port->buffers[i]; + b->id = i; + b->outbuf = buffers[i]; + b->flags = 0; + } + port->n_buffers = n_buffers; + + return 0; +} + +static int +impl_node_port_set_io(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t id, + void *data, size_t size) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + switch (id) { + case SPA_IO_Buffers: + port->io = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id) +{ + return -ENOTSUP; +} + +static int impl_node_process(void *object) +{ + struct impl *this = object; + uint32_t i; + int res = 0; + + spa_log_trace(this->log, NAME" %p: process %d", this, this->n_in_ports); + + for (i = 0; i < this->n_in_ports; i++) { + struct port *port = GET_IN_PORT(this, i); + struct spa_io_buffers *io = port->io; + struct buffer *b; + struct spa_data *src; + uint32_t n_frames = this->client->buffer_size; + void *dst; + + dst = jack_port_get_buffer(port->jack_port, n_frames); + + if (io == NULL || + io->status != SPA_STATUS_HAVE_DATA || + io->buffer_id >= port->n_buffers) { + memset(dst, 0, n_frames * sizeof(float)); + continue; + } + + spa_log_trace(this->log, NAME" %p: port %d: buffer %d", this, i, io->buffer_id); + b = &port->buffers[io->buffer_id]; + src = &b->outbuf->datas[0]; + + spa_memcpy(dst, src->data, n_frames * port->stride); + + io->status = SPA_STATUS_NEED_DATA; + + res |= SPA_STATUS_NEED_DATA; + } + return res; +} + +static const struct spa_node_methods impl_node = { + SPA_VERSION_NODE_METHODS, + .add_listener = impl_node_add_listener, + .set_callbacks = impl_node_set_callbacks, + .enum_params = impl_node_enum_params, + .set_param = impl_node_set_param, + .set_io = impl_node_set_io, + .send_command = impl_node_send_command, + .add_port = impl_node_add_port, + .remove_port = impl_node_remove_port, + .port_enum_params = impl_node_port_enum_params, + .port_set_param = impl_node_port_set_param, + .port_use_buffers = impl_node_port_use_buffers, + .port_set_io = impl_node_port_set_io, + .port_reuse_buffer = impl_node_port_reuse_buffer, + .process = impl_node_process, +}; + +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_Node)) + *interface = &this->node; + else + return -ENOENT; + + return 0; +} + +static int impl_clear(struct spa_handle *handle) +{ + 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); + + if (info && (str = spa_dict_lookup(info, SPA_KEY_API_JACK_CLIENT))) + sscanf(str, "pointer:%p", &this->client); + + if (this->client == NULL) { + spa_log_error(this->log, NAME" %p: missing "SPA_KEY_API_JACK_CLIENT + " property", this); + return -EINVAL; + } + + spa_hook_list_init(&this->hooks); + + this->node.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Node, + SPA_VERSION_NODE, + &impl_node, this); + + this->info_all = SPA_NODE_CHANGE_MASK_FLAGS | + SPA_NODE_CHANGE_MASK_PROPS | + SPA_NODE_CHANGE_MASK_PARAMS; + this->info = SPA_NODE_INFO_INIT(); + this->info.max_output_ports = MAX_PORTS; + this->info.flags = SPA_NODE_FLAG_RT; + this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ); + this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE); + this->params[2] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READ); + this->params[3] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + this->params[4] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + this->info.params = this->params; + this->info.n_params = 5; + + init_ports(this); + + return 0; +} + +static const struct spa_interface_info impl_interfaces[] = { + {SPA_TYPE_INTERFACE_Node,}, +}; + +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); + + switch (*index) { + case 0: + *info = &impl_interfaces[*index]; + break; + default: + return 0; + } + (*index)++; + return 1; +} + +static const struct spa_dict_item info_items[] = { + { SPA_KEY_FACTORY_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" }, + { SPA_KEY_FACTORY_DESCRIPTION, "Play audio with the JACK API" }, +}; + +static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items); + +const struct spa_handle_factory spa_jack_sink_factory = { + SPA_VERSION_HANDLE_FACTORY, + SPA_NAME_API_JACK_SINK, + &info, + impl_get_size, + impl_init, + impl_enum_interface_info, +}; diff --git a/spa/plugins/jack/jack-source.c b/spa/plugins/jack/jack-source.c new file mode 100644 index 0000000..7004eed --- /dev/null +++ b/spa/plugins/jack/jack-source.c @@ -0,0 +1,946 @@ +/* Spa jack client + * + * 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 <errno.h> +#include <stddef.h> +#include <unistd.h> +#include <string.h> +#include <stdio.h> + +#include <jack/jack.h> + +#include <spa/support/plugin.h> +#include <spa/support/log.h> +#include <spa/support/loop.h> +#include <spa/utils/list.h> +#include <spa/utils/keys.h> +#include <spa/utils/names.h> +#include <spa/utils/string.h> +#include <spa/node/node.h> +#include <spa/node/utils.h> +#include <spa/node/io.h> +#include <spa/node/keys.h> +#include <spa/param/audio/format-utils.h> +#include <spa/param/param.h> +#include <spa/pod/filter.h> + +#include "jack-client.h" + +#define NAME "jack-source" + +#define MAX_PORTS 128 +#define MAX_BUFFERS 8 +#define MAX_SAMPLES 8192 + +struct buffer { + uint32_t id; +#define BUFFER_FLAG_OUT (1<<0) + uint32_t flags; + struct spa_buffer *outbuf; + struct spa_list link; +}; + +struct port { + uint32_t id; + + uint64_t info_all; + struct spa_port_info info; + struct spa_dict_item items[4]; + struct spa_dict props; + struct spa_param_info params[5]; + + unsigned int have_format:1; + struct spa_audio_info current_format; + int stride; + + struct spa_io_buffers *io; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + struct spa_list empty; + + jack_port_t *jack_port; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + struct spa_log *log; + struct spa_loop *data_loop; + + uint64_t info_all; + struct spa_node_info info; + struct spa_param_info params[5]; + + struct spa_hook_list hooks; + struct spa_callbacks callbacks; + + struct spa_io_clock *clock; + struct spa_io_position *position; + + struct port out_ports[MAX_PORTS]; + uint32_t n_out_ports; + + struct spa_audio_info current_format; + + struct spa_jack_client *client; + struct spa_hook client_listener; + + unsigned int started:1; +}; + +#define CHECK_OUT_PORT(this,p) ((p) < this->n_out_ports) +#define CHECK_PORT(this,d,p) (d == SPA_DIRECTION_OUTPUT && CHECK_OUT_PORT(this,p)) +#define GET_OUT_PORT(this,p) (&this->out_ports[p]) +#define GET_PORT(this,d,p) GET_OUT_PORT(this,p) + +static int impl_node_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_node_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_PropInfo: + return 0; + + case SPA_PARAM_Props: + return 0; + + case SPA_PARAM_EnumFormat: + case SPA_PARAM_Format: + switch (result.index) { + case 0: + param = spa_format_audio_dsp_build(&b, + id, &this->current_format.info.dsp); + break; + default: + return 0; + } + break; + + case SPA_PARAM_IO: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Clock), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_clock))); + break; + case 1: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Position), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_position))); + break; + default: + return 0; + } + break; + + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + case SPA_IO_Clock: + this->clock = data; + break; + case SPA_IO_Position: + this->position = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_set_param(void *object, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + default: + return -ENOENT; + } + return 0; +} + + +static inline void reuse_buffer(struct impl *this, struct port *port, uint32_t id) +{ + struct buffer *b = &port->buffers[id]; + + if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_OUT)) { + spa_log_trace(this->log, NAME " %p: reuse buffer %d", this, id); + SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_OUT); + spa_list_append(&port->empty, &b->link); + } +} + +static struct buffer *dequeue_buffer(struct impl *this, struct port *port) +{ + struct buffer *b; + + if (spa_list_is_empty(&port->empty)) + return NULL; + + b = spa_list_first(&port->empty, struct buffer, link); + spa_list_remove(&b->link); + SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUT); + + return b; +} + +static int impl_node_send_command(void *object, const struct spa_command *command) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(command != NULL, -EINVAL); + + switch (SPA_NODE_COMMAND_ID(command)) { + case SPA_NODE_COMMAND_Start: + if (this->started) + return 0; + + this->started = true; + break; + + case SPA_NODE_COMMAND_Pause: + if (!this->started) + return 0; + + this->started = false; + break; + default: + return -ENOTSUP; + } + return 0; +} + +static void emit_node_info(struct impl *this, bool full) +{ + uint64_t old = full ? this->info.change_mask : 0; + if (full) + this->info.change_mask = this->info_all; + if (this->info.change_mask) { + struct spa_dict_item items[5]; + char latency[64]; + snprintf(latency, sizeof(latency), "%d/%d", + this->client->buffer_size, this->client->frame_rate); + items[0] = SPA_DICT_ITEM_INIT(SPA_KEY_MEDIA_CLASS, "Audio/Source"); + items[1] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_NAME, "JACK System"); + items[2] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_DRIVER, "true"); + items[3] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_PAUSE_ON_IDLE, "false"); + items[4] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_LATENCY, latency); + this->info.props = &SPA_DICT_INIT_ARRAY(items); + spa_node_emit_info(&this->hooks, &this->info); + this->info.change_mask = old; + } +} + +static void emit_port_info(struct impl *this, struct port *port, bool full) +{ + uint64_t old = full ? port->info.change_mask : 0; + if (full) + port->info.change_mask = port->info_all; + if (port->info.change_mask) { + char* aliases[2]; + int n_aliases, n_items; + + aliases[0] = alloca(jack_port_name_size()); + aliases[1] = alloca(jack_port_name_size()); + n_aliases = jack_port_get_aliases(port->jack_port, aliases); + n_items = 1; + port->items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_PORT_NAME, + jack_port_short_name(port->jack_port)); + if (n_aliases > 0) + port->items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_OBJECT_PATH, aliases[0]); + if (n_aliases > 1) + port->items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_PORT_ALIAS, aliases[1]); + port->props = SPA_DICT_INIT(port->items, n_items); + + spa_node_emit_port_info(&this->hooks, + SPA_DIRECTION_OUTPUT, port->id, &port->info); + port->info.change_mask = old; + } +} + +static int +impl_node_add_listener(void *object, + struct spa_hook *listener, + const struct spa_node_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_hook_list_isolate(&this->hooks, &save, listener, events, data); + + emit_node_info(this, true); + for (i = 0; i < this->n_out_ports; i++) + emit_port_info(this, GET_OUT_PORT(this, i), true); + + spa_hook_list_join(&this->hooks, &save); + + return 0; +} + +static int +impl_node_set_callbacks(void *object, + const struct spa_node_callbacks *callbacks, + void *data) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + this->callbacks = SPA_CALLBACKS_INIT(callbacks, data); + + return 0; +} + +static void client_process(void *data) +{ + struct impl *this = data; + int res; + + res = spa_node_process(&this->node); + + if (res != SPA_STATUS_OK) + spa_node_call_ready(&this->callbacks, res); +} + +static const struct spa_jack_client_events client_events = { + SPA_VERSION_JACK_CLIENT_EVENTS, + .process = client_process, +}; + +static int init_port(struct impl *this, struct port *port) +{ + port->info_all = SPA_PORT_CHANGE_MASK_FLAGS | + SPA_PORT_CHANGE_MASK_PROPS | + SPA_PORT_CHANGE_MASK_PARAMS; + port->info = SPA_PORT_INFO_INIT(); + port->info.flags = SPA_PORT_FLAG_NO_REF; + + port->items[0] = SPA_DICT_ITEM_INIT(SPA_KEY_FORMAT_DSP, "32 bit float mono audio"); + port->props = SPA_DICT_INIT(port->items, 1); + port->info.props = &port->props; + + port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ); + port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + port->info.params = port->params; + port->info.n_params = 5; + + spa_list_init(&port->empty); + return 0; +} + +static int init_ports(struct impl *this) +{ + const char **ports; + jack_client_t *client = this->client->client; + uint32_t i; + int res; + + ports = jack_get_ports(client, + NULL, JACK_DEFAULT_AUDIO_TYPE, + JackPortIsPhysical|JackPortIsOutput); + if (ports == NULL) { + spa_log_error(this->log, NAME" %p: can't enumerate ports", this); + res = -ENODEV; + goto exit; + } + + for (i = 0; ports[i]; i++) { + struct port *port = GET_OUT_PORT(this, i); + jack_port_t *p = jack_port_by_name(client, ports[i]); + char *aliases[2]; + int n_aliases; + + port->id = i; + port->jack_port = jack_port_register(client, + jack_port_short_name(p), + jack_port_type(p), + JackPortIsInput, 0); + if (port->jack_port == NULL) { + spa_log_error(this->log, NAME" %p: jack_port_register() %d (%s) failed", + this, i, ports[i]); + res = -EFAULT; + goto exit_free; + } + + aliases[0] = alloca(jack_port_name_size()); + aliases[1] = alloca(jack_port_name_size()); + + n_aliases = jack_port_get_aliases(p, aliases); + if (n_aliases > 0) + jack_port_set_alias(port->jack_port, aliases[0]); + if (n_aliases > 1) + jack_port_set_alias(port->jack_port, aliases[1]); + + init_port(this, port); + } + this->n_out_ports = i; + + this->current_format.info.dsp = SPA_AUDIO_INFO_DSP_INIT( + .format = SPA_AUDIO_FORMAT_DSP_F32); + + spa_jack_client_add_listener(this->client, + &this->client_listener, + &client_events, this); + + jack_activate(client); + + for (i = 0; ports[i]; i++) { + struct port *port = GET_OUT_PORT(this, i); + if (jack_connect(client, ports[i], jack_port_name(port->jack_port))) { + spa_log_warn(this->log, NAME" %p: Failed to connect %s to %s", + this, jack_port_name(port->jack_port), ports[i]); + } + } + + res = 0; +exit_free: + jack_free(ports); +exit: + return res; +} + + +static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id, + const struct spa_dict *props) +{ + return -ENOTSUP; +} + +static int +impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id) +{ + return -ENOTSUP; +} + +static int port_enum_formats(struct impl *this, + enum spa_direction direction, uint32_t port_id, + uint32_t index, + const struct spa_pod *filter, + struct spa_pod **param, + struct spa_pod_builder *builder) +{ + switch (index) { + case 0: + *param = spa_pod_builder_add_object(builder, + SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat, + SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_dsp), + SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_DSP_F32)); + break; + default: + return 0; + } + return 1; +} + +static int +impl_node_port_enum_params(void *object, int seq, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct port *port; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_pod *param; + struct spa_result_node_params result; + uint32_t count = 0; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_EnumFormat: + if ((res = port_enum_formats(this, direction, port_id, + result.index, filter, ¶m, &b)) <= 0) + return res; + break; + + case SPA_PARAM_Format: + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_format_audio_dsp_build(&b, id, &port->current_format.info.dsp); + break; + + case SPA_PARAM_Buffers: + { + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamBuffers, id, + SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(2, 1, MAX_BUFFERS), + SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1), + SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int( + MAX_SAMPLES * port->stride, + 16 * port->stride, + MAX_SAMPLES * port->stride), + SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->stride)); + break; + } + case SPA_PARAM_IO: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Buffers), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers))); + break; + default: + return 0; + } + break; + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int clear_buffers(struct impl *this, struct port *port) +{ + if (port->n_buffers > 0) { + spa_log_debug(this->log, NAME " %p: clear buffers", this); + port->n_buffers = 0; + spa_list_init(&port->empty); + this->started = false; + } + return 0; +} + +static int port_set_format(struct impl *this, struct port *port, + uint32_t flags, + const struct spa_pod *format) +{ + int res; + + if (format == NULL) { + port->have_format = false; + clear_buffers(this, port); + } else { + struct spa_audio_info info = { 0 }; + + if ((res = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0) + return res; + + if (info.media_type != SPA_MEDIA_TYPE_audio && + info.media_subtype != SPA_MEDIA_SUBTYPE_dsp) + return -EINVAL; + + if (spa_format_audio_dsp_parse(format, &info.info.dsp) < 0) + return -EINVAL; + + if (info.info.dsp.format != SPA_AUDIO_FORMAT_DSP_F32) + return -EINVAL; + + port->stride = 4; + port->current_format = info; + port->have_format = true; + } + + port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS; + if (port->have_format) { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ); + } else { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + } + emit_port_info(this, port, false); + + return 0; +} + +static int +impl_node_port_set_param(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + struct port *port; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + switch (id) { + case SPA_PARAM_Format: + res = port_set_format(this, port, flags, param); + break; + default: + return -ENOENT; + } + return res; +} + +static int +impl_node_port_use_buffers(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t flags, + struct spa_buffer **buffers, + uint32_t n_buffers) +{ + struct impl *this = object; + struct port *port; + uint32_t i; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + clear_buffers(this, port); + + if (n_buffers > 0 && !port->have_format) + return -EIO; + if (n_buffers > MAX_BUFFERS) + return -ENOSPC; + + for (i = 0; i < n_buffers; i++) { + struct buffer *b; + + b = &port->buffers[i]; + b->id = i; + b->outbuf = buffers[i]; + b->flags = 0; + spa_list_append(&port->empty, &b->link); + } + port->n_buffers = n_buffers; + + return 0; +} + +static int +impl_node_port_set_io(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t id, + void *data, size_t size) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + switch (id) { + case SPA_IO_Buffers: + port->io = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_OUT_PORT(this, port_id), -EINVAL); + + port = GET_OUT_PORT(this, port_id); + + spa_return_val_if_fail(buffer_id < port->n_buffers, -EINVAL); + + reuse_buffer(this, port, buffer_id); + + return 0; +} + +static int impl_node_process(void *object) +{ + struct impl *this = object; + uint32_t i; + int res = 0; + + spa_log_trace(this->log, NAME" %p: process %d", this, this->n_out_ports); + + for (i = 0; i < this->n_out_ports; i++) { + struct port *port = GET_OUT_PORT(this, i); + struct spa_io_buffers *io = port->io; + struct buffer *b; + struct spa_data *d; + const void *src; + uint32_t n_frames = this->client->buffer_size; + + if (io == NULL || io->status == SPA_STATUS_HAVE_DATA) + continue; + + if (io->buffer_id < port->n_buffers) { + reuse_buffer(this, port, io->buffer_id); + io->buffer_id = SPA_ID_INVALID; + } + + if ((b = dequeue_buffer(this, port)) == NULL) { + spa_log_trace(this->log, NAME" %p: out of buffers", this); + io->status = -EPIPE; + continue; + } + + src = jack_port_get_buffer(port->jack_port, n_frames); + + d = &b->outbuf->datas[0]; + spa_memcpy(d->data, src, n_frames * port->stride); + d->chunk->offset = 0; + d->chunk->size = n_frames * port->stride; + d->chunk->stride = port->stride; + d->chunk->flags = 0; + + io->buffer_id = b->id; + io->status = SPA_STATUS_HAVE_DATA; + + res |= SPA_STATUS_HAVE_DATA; + } + return res; +} + +static const struct spa_node_methods impl_node = { + SPA_VERSION_NODE_METHODS, + .add_listener = impl_node_add_listener, + .set_callbacks = impl_node_set_callbacks, + .enum_params = impl_node_enum_params, + .set_param = impl_node_set_param, + .set_io = impl_node_set_io, + .send_command = impl_node_send_command, + .add_port = impl_node_add_port, + .remove_port = impl_node_remove_port, + .port_enum_params = impl_node_port_enum_params, + .port_set_param = impl_node_port_set_param, + .port_use_buffers = impl_node_port_use_buffers, + .port_set_io = impl_node_port_set_io, + .port_reuse_buffer = impl_node_port_reuse_buffer, + .process = impl_node_process, +}; + +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_Node)) + *interface = &this->node; + else + return -ENOENT; + + return 0; +} + +static int impl_clear(struct spa_handle *handle) +{ + 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); + + if (info && (str = spa_dict_lookup(info, SPA_KEY_API_JACK_CLIENT))) + sscanf(str, "pointer:%p", &this->client); + + if (this->client == NULL) { + spa_log_error(this->log, NAME" %p: missing "SPA_KEY_API_JACK_CLIENT + " property", this); + return -EINVAL; + } + + spa_hook_list_init(&this->hooks); + + this->node.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Node, + SPA_VERSION_NODE, + &impl_node, this); + + this->info_all = SPA_NODE_CHANGE_MASK_FLAGS | + SPA_NODE_CHANGE_MASK_PROPS | + SPA_NODE_CHANGE_MASK_PARAMS; + this->info = SPA_NODE_INFO_INIT(); + this->info.max_output_ports = MAX_PORTS; + this->info.flags = SPA_NODE_FLAG_RT; + this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ); + this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE); + this->params[2] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READ); + this->params[3] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + this->params[4] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + this->info.params = this->params; + this->info.n_params = 5; + + init_ports(this); + + return 0; +} + +static const struct spa_interface_info impl_interfaces[] = { + {SPA_TYPE_INTERFACE_Node,}, +}; + +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); + + switch (*index) { + case 0: + *info = &impl_interfaces[*index]; + break; + default: + return 0; + } + (*index)++; + return 1; +} + +static const struct spa_dict_item info_items[] = { + { SPA_KEY_FACTORY_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" }, + { SPA_KEY_FACTORY_DESCRIPTION, "Record audio with the JACK API" }, +}; + +static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items); + +const struct spa_handle_factory spa_jack_source_factory = { + SPA_VERSION_HANDLE_FACTORY, + SPA_NAME_API_JACK_SOURCE, + &info, + impl_get_size, + impl_init, + impl_enum_interface_info, +}; diff --git a/spa/plugins/jack/meson.build b/spa/plugins/jack/meson.build new file mode 100644 index 0000000..312a540 --- /dev/null +++ b/spa/plugins/jack/meson.build @@ -0,0 +1,12 @@ +spa_jack_sources = [ +'plugin.c', + 'jack-client.c', + 'jack-device.c', + 'jack-sink.c', + 'jack-source.c'] + +spa_jack = shared_library('spa-jack', + spa_jack_sources, + dependencies : [ spa_dep, jack_dep, mathlib ], + install : true, + install_dir : spa_plugindir / 'jack') diff --git a/spa/plugins/jack/plugin.c b/spa/plugins/jack/plugin.c new file mode 100644 index 0000000..4aa9cbd --- /dev/null +++ b/spa/plugins/jack/plugin.c @@ -0,0 +1,54 @@ +/* Spa jack plugin + * + * 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 <errno.h> + +#include <spa/support/plugin.h> + +extern const struct spa_handle_factory spa_jack_device_factory; +extern const struct spa_handle_factory spa_jack_source_factory; +extern const struct spa_handle_factory spa_jack_sink_factory; + +SPA_EXPORT +int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index) +{ + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(index != NULL, -EINVAL); + + switch (*index) { + case 0: + *factory = &spa_jack_device_factory; + break; + case 1: + *factory = &spa_jack_source_factory; + break; + case 2: + *factory = &spa_jack_sink_factory; + break; + default: + return 0; + } + (*index)++; + return 1; +} |