From 7a46c07230b8d8108c0e8e80df4522d0ac116538 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:28:17 +0200 Subject: Adding upstream version 0.3.65. Signed-off-by: Daniel Baumann --- spa/plugins/control/meson.build | 10 + spa/plugins/control/mixer.c | 869 ++++++++++++++++++++++++++++++++++++++++ spa/plugins/control/plugin.c | 46 +++ 3 files changed, 925 insertions(+) create mode 100644 spa/plugins/control/meson.build create mode 100644 spa/plugins/control/mixer.c create mode 100644 spa/plugins/control/plugin.c (limited to 'spa/plugins/control') diff --git a/spa/plugins/control/meson.build b/spa/plugins/control/meson.build new file mode 100644 index 0000000..adabdfa --- /dev/null +++ b/spa/plugins/control/meson.build @@ -0,0 +1,10 @@ +control_sources = [ + 'mixer.c', + 'plugin.c' +] + +controllib = shared_library('spa-control', + control_sources, + dependencies : [ spa_dep, mathlib ], + install : true, + install_dir : spa_plugindir / 'control') diff --git a/spa/plugins/control/mixer.c b/spa/plugins/control/mixer.c new file mode 100644 index 0000000..9d28bef --- /dev/null +++ b/spa/plugins/control/mixer.c @@ -0,0 +1,869 @@ +/* Spa + * + * 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 +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define NAME "control-mixer" + +#define MAX_BUFFERS 64 +#define MAX_PORTS 128 + +struct buffer { + uint32_t id; +#define BUFFER_FLAG_QUEUED (1 << 0) + uint32_t flags; + + struct spa_list link; + struct spa_buffer *buffer; +}; + +struct port { + uint32_t direction; + uint32_t id; + + struct spa_io_buffers *io; + + uint64_t info_all; + struct spa_port_info info; + struct spa_param_info params[8]; + + unsigned int valid:1; + unsigned int have_format:1; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + struct spa_list queue; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + struct spa_log *log; + + uint64_t info_all; + struct spa_node_info info; + struct spa_param_info params[8]; + + struct spa_hook_list hooks; + + uint32_t port_count; + uint32_t last_port; + struct port *in_ports[MAX_PORTS]; + struct port out_ports[1]; + + int n_formats; + + unsigned int have_format:1; + unsigned int started:1; +}; + +#define PORT_VALID(p) ((p) != NULL && (p)->valid) +#define CHECK_FREE_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_PORTS && !PORT_VALID(this->in_ports[(p)])) +#define CHECK_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_PORTS && PORT_VALID(this->in_ports[(p)])) +#define CHECK_OUT_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) == 0) +#define CHECK_PORT(this,d,p) (CHECK_OUT_PORT(this,d,p) || CHECK_IN_PORT (this,d,p)) +#define GET_IN_PORT(this,p) (this->in_ports[p]) +#define GET_OUT_PORT(this,p) (&this->out_ports[p]) +#define GET_PORT(this,d,p) (d == SPA_DIRECTION_INPUT ? GET_IN_PORT(this,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) +{ + return -ENOTSUP; +} + +static int impl_node_set_param(void *object, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + return -ENOTSUP; +} + +static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size) +{ + return -ENOTSUP; +} + +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: + this->started = true; + break; + case SPA_NODE_COMMAND_Pause: + 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) { + 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) { + spa_node_emit_port_info(&this->hooks, + port->direction, 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); + emit_port_info(this, GET_OUT_PORT(this, 0), true); + for (i = 0; i < this->last_port; i++) { + if (PORT_VALID(this->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 *user_data) +{ + return 0; +} + +static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id, + const struct spa_dict *props) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_FREE_IN_PORT(this, direction, port_id), -EINVAL); + + port = GET_IN_PORT (this, port_id); + if (port == NULL) { + port = calloc(1, sizeof(struct port)); + if (port == NULL) + return -errno; + this->in_ports[port_id] = port; + } + + port->direction = direction; + port->id = port_id; + + spa_list_init(&port->queue); + port->info_all = SPA_PORT_CHANGE_MASK_FLAGS | + SPA_PORT_CHANGE_MASK_PARAMS; + port->info = SPA_PORT_INFO_INIT(); + port->info.flags = SPA_PORT_FLAG_NO_REF | + SPA_PORT_FLAG_DYNAMIC_DATA | + SPA_PORT_FLAG_REMOVABLE | + SPA_PORT_FLAG_OPTIONAL; + 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; + + this->port_count++; + if (this->last_port <= port_id) + this->last_port = port_id + 1; + port->valid = true; + + spa_log_debug(this->log, NAME " %p: add port %d %d", this, port_id, this->last_port); + emit_port_info(this, port, true); + + return 0; +} + +static int +impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_IN_PORT(this, direction, port_id), -EINVAL); + + port = GET_IN_PORT (this, port_id); + + port->valid = false; + this->port_count--; + if (port->have_format && this->have_format) { + if (--this->n_formats == 0) + this->have_format = false; + } + spa_memzero(port, sizeof(struct port)); + + if (port_id + 1 == this->last_port) { + int i; + + for (i = this->last_port - 1; i >= 0; i--) + if (GET_IN_PORT (this, i)->valid) + break; + + this->last_port = i + 1; + } + spa_log_debug(this->log, NAME " %p: remove port %d %d", this, port_id, this->last_port); + + spa_node_emit_port_info(&this->hooks, direction, port_id, NULL); + + return 0; +} + +static int port_enum_formats(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t index, + 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_application), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_control)); + 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 *param; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + 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, ¶m, &b)) <= 0) + return res; + break; + + case SPA_PARAM_Format: + if (!port->have_format) + return -EIO; + if ((res = port_enum_formats(this, direction, port_id, result.index, ¶m, &b)) <= 0) + return res; + 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(4096, 512, INT32_MAX), + SPA_PARAM_BUFFERS_stride, SPA_POD_Int(1)); + 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 %p", this, port); + port->n_buffers = 0; + spa_list_init(&port->queue); + } + return 0; +} + +static int queue_buffer(struct impl *this, struct port *port, struct buffer *b) +{ + if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_QUEUED)) + return -EINVAL; + + spa_list_append(&port->queue, &b->link); + SPA_FLAG_SET(b->flags, BUFFER_FLAG_QUEUED); + spa_log_trace_fp(this->log, NAME " %p: queue buffer %d", this, b->id); + return 0; +} + +static struct buffer *dequeue_buffer(struct impl *this, struct port *port) +{ + struct buffer *b; + + if (spa_list_is_empty(&port->queue)) + return NULL; + + b = spa_list_first(&port->queue, struct buffer, link); + spa_list_remove(&b->link); + SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_QUEUED); + spa_log_trace_fp(this->log, NAME " %p: dequeue buffer %d", this, b->id); + return b; +} + +static int port_set_format(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t flags, + const struct spa_pod *format) +{ + struct impl *this = object; + struct port *port; + int res; + + port = GET_PORT(this, direction, port_id); + + if (format == NULL) { + if (port->have_format) { + port->have_format = false; + if (--this->n_formats == 0) + this->have_format = false; + clear_buffers(this, port); + } + } else { + uint32_t media_type, media_subtype; + if ((res = spa_format_parse(format, &media_type, &media_subtype)) < 0) + return res; + + if (media_type != SPA_MEDIA_TYPE_application || + media_subtype != SPA_MEDIA_SUBTYPE_control) + return -EINVAL; + + this->have_format = true; + + if (!port->have_format) { + this->n_formats++; + port->have_format = true; + spa_log_debug(this->log, NAME " %p: set format on port %d:%d", + this, direction, port_id); + } + } + 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; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + if (id == SPA_PARAM_Format) { + return port_set_format(this, direction, port_id, flags, param); + } + else + return -ENOENT; +} + +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); + + spa_log_debug(this->log, NAME " %p: use buffers %d on port %d:%d", + this, n_buffers, 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; + struct spa_data *d = buffers[i]->datas; + + b = &port->buffers[i]; + b->buffer = buffers[i]; + b->flags = 0; + b->id = i; + + if (d[0].data == NULL) { + spa_log_error(this->log, NAME " %p: invalid memory on buffer %d", this, i); + return -EINVAL; + } + if (direction == SPA_DIRECTION_OUTPUT) + queue_buffer(this, port, b); + } + 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); + + spa_log_debug(this->log, NAME " %p: port %d:%d io %d %p/%zd", this, + direction, port_id, id, data, size); + + 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_PORT(this, SPA_DIRECTION_OUTPUT, port_id), -EINVAL); + port = GET_OUT_PORT(this, 0); + + if (buffer_id >= port->n_buffers) + return -EINVAL; + + return queue_buffer(this, port, &port->buffers[buffer_id]); +} + +static inline int event_sort(struct spa_pod_control *a, struct spa_pod_control *b) +{ + if (a->offset < b->offset) + return -1; + if (a->offset > b->offset) + return 1; + if (a->type != b->type) + return 0; + switch(a->type) { + case SPA_CONTROL_Midi: + { + /* 11 (controller) > 12 (program change) > + * 8 (note off) > 9 (note on) > 10 (aftertouch) > + * 13 (channel pressure) > 14 (pitch bend) */ + static int priotab[] = { 5,4,3,7,6,2,1,0 }; + uint8_t *da, *db; + + if (SPA_POD_BODY_SIZE(&a->value) < 1 || + SPA_POD_BODY_SIZE(&b->value) < 1) + return 0; + + da = SPA_POD_BODY(&a->value); + db = SPA_POD_BODY(&b->value); + if ((da[0] & 0xf) != (db[0] & 0xf)) + return 0; + return priotab[(db[0]>>4) & 7] - priotab[(da[0]>>4) & 7]; + } + default: + return 0; + } +} + +static int impl_node_process(void *object) +{ + struct impl *this = object; + struct port *outport; + struct spa_io_buffers *outio; + uint32_t n_seq, i; + struct spa_pod_sequence **seq; + struct spa_pod_control **ctrl; + struct spa_pod_builder builder; + struct spa_pod_frame f; + struct buffer *outb; + struct spa_data *d; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + outport = GET_OUT_PORT(this, 0); + if ((outio = outport->io) == NULL) + return -EIO; + + spa_log_trace_fp(this->log, NAME " %p: status %p %d %d", + this, outio, outio->status, outio->buffer_id); + + if (outio->status == SPA_STATUS_HAVE_DATA) + return outio->status; + + /* recycle */ + if (outio->buffer_id < outport->n_buffers) { + queue_buffer(this, outport, &outport->buffers[outio->buffer_id]); + outio->buffer_id = SPA_ID_INVALID; + } + + /* get output buffer */ + if ((outb = dequeue_buffer(this, outport)) == NULL) { + spa_log_trace(this->log, NAME " %p: out of buffers", this); + return -EPIPE; + } + + ctrl = alloca(MAX_PORTS * sizeof(struct spa_pod_control *)); + seq = alloca(MAX_PORTS * sizeof(struct spa_pod_sequence *)); + n_seq = 0; + + /* collect all sequence pod on input ports */ + for (i = 0; i < this->last_port; i++) { + struct port *inport = GET_IN_PORT(this, i); + struct spa_io_buffers *inio = NULL; + void *pod; + + if (!inport->valid || + (inio = inport->io) == NULL || + inio->buffer_id >= inport->n_buffers || + inio->status != SPA_STATUS_HAVE_DATA) { + spa_log_trace_fp(this->log, NAME " %p: skip input idx:%d valid:%d " + "io:%p status:%d buf_id:%d n_buffers:%d", this, + i, inport->valid, inio, + inio ? inio->status : -1, + inio ? inio->buffer_id : SPA_ID_INVALID, + inport->n_buffers); + continue; + } + + spa_log_trace_fp(this->log, NAME " %p: mix input %d %p->%p %d %d", this, + i, inio, outio, inio->status, inio->buffer_id); + + d = inport->buffers[inio->buffer_id].buffer->datas; + + if ((pod = spa_pod_from_data(d->data, d->maxsize, + d->chunk->offset, d->chunk->size)) == NULL) + continue; + if (!spa_pod_is_sequence(pod)) + continue; + + seq[n_seq] = pod; + ctrl[n_seq] = spa_pod_control_first(&seq[n_seq]->body); + inio->status = SPA_STATUS_NEED_DATA; + n_seq++; + } + + d = outb->buffer->datas; + + /* prepare to write into output */ + spa_pod_builder_init(&builder, d->data, d->maxsize); + spa_pod_builder_push_sequence(&builder, &f, 0); + + /* merge sort all sequences into output buffer */ + while (true) { + struct spa_pod_control *next = NULL; + uint32_t next_index = 0; + + for (i = 0; i < n_seq; i++) { + if (!spa_pod_control_is_inside(&seq[i]->body, + SPA_POD_BODY_SIZE(seq[i]), ctrl[i])) + continue; + + if (next == NULL || event_sort(ctrl[i], next) <= 0) { + next = ctrl[i]; + next_index = i; + } + } + if (next == NULL) + break; + + spa_pod_builder_control(&builder, next->offset, next->type); + spa_pod_builder_primitive(&builder, &next->value); + + ctrl[next_index] = spa_pod_control_next(ctrl[next_index]); + } + spa_pod_builder_pop(&builder, &f); + + d->chunk->offset = 0; + d->chunk->size = builder.state.offset; + d->chunk->stride = 1; + d->chunk->flags = 0; + + outio->buffer_id = outb->id; + outio->status = SPA_STATUS_HAVE_DATA; + + return SPA_STATUS_HAVE_DATA | SPA_STATUS_NEED_DATA; +} + +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) +{ + struct impl *this; + uint32_t i; + + spa_return_val_if_fail(handle != NULL, -EINVAL); + + this = (struct impl *) handle; + + for (i = 0; i < MAX_PORTS; i++) + free(this->in_ports[i]); + 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; + struct port *port; + + 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); + + spa_hook_list_init(&this->hooks); + + this->node.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Node, + SPA_VERSION_NODE, + &impl_node, this); + this->info = SPA_NODE_INFO_INIT(); + this->info.max_input_ports = MAX_PORTS; + this->info.max_output_ports = 1; + this->info.change_mask |= SPA_NODE_CHANGE_MASK_FLAGS; + this->info.flags = SPA_NODE_FLAG_RT | SPA_NODE_FLAG_IN_DYNAMIC_PORTS; + + port = GET_OUT_PORT(this, 0); + port->valid = true; + port->direction = SPA_DIRECTION_OUTPUT; + port->id = 0; + port->info = SPA_PORT_INFO_INIT(); + port->info.change_mask |= SPA_PORT_CHANGE_MASK_FLAGS; + port->info.flags = SPA_PORT_FLAG_DYNAMIC_DATA; + port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS; + 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->queue); + + 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; +} + +const struct spa_handle_factory spa_control_mixer_factory = { + SPA_VERSION_HANDLE_FACTORY, + SPA_NAME_CONTROL_MIXER, + NULL, + impl_get_size, + impl_init, + impl_enum_interface_info, +}; diff --git a/spa/plugins/control/plugin.c b/spa/plugins/control/plugin.c new file mode 100644 index 0000000..ed53382 --- /dev/null +++ b/spa/plugins/control/plugin.c @@ -0,0 +1,46 @@ +/* Spa Control plugin + * + * 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. + */ + +#include + +#include + +extern const struct spa_handle_factory spa_control_mixer_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_control_mixer_factory; + break; + default: + return 0; + } + (*index)++; + return 1; +} -- cgit v1.2.3