mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-01 22:58:50 -04:00
jack: add jack source and sink
Makes a device with a source and sink that automatically proxies all physical ports from jack. Jack then drives our PipeWire pipeline from its own thread.
This commit is contained in:
Wim Taymans
parent
d00c641559
commit
5b9869200f
15 changed files with 2433 additions and 1 deletions
836
spa/plugins/jack/jack-sink.c
Normal file
836
spa/plugins/jack/jack-sink.c
Normal file
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@ -0,0 +1,836 @@
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/* Spa jack client
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*
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* Copyright © 2019 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <errno.h>
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#include <stddef.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <sys/timerfd.h>
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#include <jack/jack.h>
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#include <spa/support/log.h>
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#include <spa/support/loop.h>
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#include <spa/utils/list.h>
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#include <spa/utils/keys.h>
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#include <spa/utils/names.h>
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#include <spa/node/node.h>
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#include <spa/node/utils.h>
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#include <spa/node/io.h>
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#include <spa/param/audio/format-utils.h>
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#include <spa/param/param.h>
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#include <spa/pod/filter.h>
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#include "jack-client.h"
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#define NAME "jack-sink"
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#define MAX_PORTS 128
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#define MAX_BUFFERS 8
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#define MAX_SAMPLES 1024
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struct buffer {
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uint32_t id;
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#define BUFFER_FLAG_OUT (1<<0)
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uint32_t flags;
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struct spa_buffer *outbuf;
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struct spa_list link;
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};
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struct port {
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uint32_t id;
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uint64_t info_all;
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struct spa_port_info info;
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struct spa_dict_item items[2];
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struct spa_dict props;
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struct spa_param_info params[5];
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unsigned int have_format:1;
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struct spa_audio_info current_format;
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int stride;
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struct spa_io_buffers *io;
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struct spa_io_clock *io_clock;
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struct buffer buffers[MAX_BUFFERS];
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uint32_t n_buffers;
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jack_port_t *jack_port;
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};
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struct impl {
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struct spa_handle handle;
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struct spa_node node;
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struct spa_log *log;
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struct spa_loop *data_loop;
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uint64_t info_all;
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struct spa_node_info info;
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struct spa_param_info params[4];
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struct spa_hook_list hooks;
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struct spa_callbacks callbacks;
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struct port in_ports[MAX_PORTS];
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uint32_t n_in_ports;
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struct spa_audio_info current_format;
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struct spa_jack_client *client;
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struct spa_hook client_listener;
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unsigned int started:1;
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};
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#define CHECK_IN_PORT(this,p) ((p) < this->n_in_ports)
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#define CHECK_PORT(this,d,p) (d == SPA_DIRECTION_INPUT && CHECK_IN_PORT(this,p))
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#define GET_IN_PORT(this,p) (&this->in_ports[p])
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#define GET_PORT(this,d,p) GET_IN_PORT(this,p)
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static int impl_node_enum_params(void *object, int seq,
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uint32_t id, uint32_t start, uint32_t num,
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const struct spa_pod *filter)
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{
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struct impl *this = object;
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struct spa_pod *param;
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struct spa_pod_builder b = { 0 };
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uint8_t buffer[1024];
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struct spa_result_node_params result;
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uint32_t count = 0;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_return_val_if_fail(num != 0, -EINVAL);
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result.id = id;
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result.next = start;
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next:
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result.index = result.next++;
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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switch (id) {
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case SPA_PARAM_PropInfo:
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return 0;
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case SPA_PARAM_Props:
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return 0;
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case SPA_PARAM_EnumFormat:
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case SPA_PARAM_Format:
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switch (result.index) {
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case 0:
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param = spa_format_audio_raw_build(&b,
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id, &this->current_format.info.raw);
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break;
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default:
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return 0;
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}
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break;
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default:
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return -ENOENT;
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}
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if (spa_pod_filter(&b, &result.param, param, filter) < 0)
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goto next;
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spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
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if (++count != num)
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goto next;
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return 0;
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}
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static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
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{
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return -ENOTSUP;
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}
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static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
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const struct spa_pod *param)
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{
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struct impl *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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switch (id) {
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default:
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return -ENOENT;
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}
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return 0;
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}
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static int impl_node_send_command(void *object, const struct spa_command *command)
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{
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struct impl *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_return_val_if_fail(command != NULL, -EINVAL);
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switch (SPA_NODE_COMMAND_ID(command)) {
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case SPA_NODE_COMMAND_Start:
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if (this->started)
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return 0;
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this->started = true;
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break;
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case SPA_NODE_COMMAND_Pause:
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if (!this->started)
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return 0;
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this->started = false;
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break;
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default:
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return -ENOTSUP;
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}
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return 0;
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}
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static const struct spa_dict_item node_info_items[] = {
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{ SPA_KEY_MEDIA_CLASS, "Audio/Sink" },
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{ SPA_KEY_NODE_NAME, "jack_system" },
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{ SPA_KEY_NODE_DRIVER, "true" },
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};
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static void emit_node_info(struct impl *this, bool full)
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{
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if (full)
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this->info.change_mask = this->info_all;
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if (this->info.change_mask) {
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this->info.props = &SPA_DICT_INIT_ARRAY(node_info_items);
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spa_node_emit_info(&this->hooks, &this->info);
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this->info.change_mask = 0;
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}
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}
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static void emit_port_info(struct impl *this, struct port *port, bool full)
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{
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if (full)
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port->info.change_mask = port->info_all;
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if (port->info.change_mask) {
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spa_node_emit_port_info(&this->hooks,
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SPA_DIRECTION_INPUT, port->id, &port->info);
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port->info.change_mask = 0;
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}
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}
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static int
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impl_node_add_listener(void *object,
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struct spa_hook *listener,
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const struct spa_node_events *events,
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void *data)
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{
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struct impl *this = object;
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struct spa_hook_list save;
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uint32_t i;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
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emit_node_info(this, true);
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for (i = 0; i < this->n_in_ports; i++)
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emit_port_info(this, GET_IN_PORT(this, i), true);
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spa_hook_list_join(&this->hooks, &save);
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return 0;
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}
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static int
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impl_node_set_callbacks(void *object,
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const struct spa_node_callbacks *callbacks,
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void *data)
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{
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struct impl *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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this->callbacks = SPA_CALLBACKS_INIT(callbacks, data);
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return 0;
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}
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static void client_process(void *data)
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{
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struct impl *this = data;
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spa_node_call_ready(&this->callbacks, SPA_STATUS_NEED_BUFFER);
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}
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static const struct spa_jack_client_events client_events = {
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SPA_VERSION_JACK_CLIENT_EVENTS,
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.process = client_process,
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};
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static int init_port(struct impl *this, struct port *port)
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{
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port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
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SPA_PORT_CHANGE_MASK_PROPS |
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SPA_PORT_CHANGE_MASK_PARAMS;
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port->info = SPA_PORT_INFO_INIT();
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port->info.flags = SPA_PORT_FLAG_NO_REF;
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port->items[0] = SPA_DICT_ITEM_INIT(SPA_KEY_FORMAT_DSP, "32 bit float mono audio");
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port->props = SPA_DICT_INIT(port->items, 1);
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port->info.props = &port->props;
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port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
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port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ);
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port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ);
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port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
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port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
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port->info.params = port->params;
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port->info.n_params = 5;
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return 0;
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}
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static int init_ports(struct impl *this)
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{
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const char **ports;
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uint32_t i;
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jack_client_t *client = this->client->client;
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int res;
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ports = jack_get_ports(client,
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NULL, JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsPhysical|JackPortIsInput);
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if (ports == NULL) {
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spa_log_error(this->log, NAME" %p: can't enumerate ports", this);
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res = -ENODEV;
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goto exit;
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}
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for (i = 0; ports[i]; i++) {
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struct port *port = GET_IN_PORT(this, i);
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port->id = i;
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init_port(this, port);
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port->jack_port = jack_port_register(client, ports[i],
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput|JackPortIsTerminal, 0);
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if (port->jack_port == NULL) {
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spa_log_error(this->log, NAME" %p: jack_port_register() failed", this);
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res = -EFAULT;
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goto exit_free;
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}
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}
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this->n_in_ports = i;
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this->current_format.info.raw = SPA_AUDIO_INFO_RAW_INIT(
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.format = SPA_AUDIO_FORMAT_F32P,
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.flags = SPA_AUDIO_FLAG_UNPOSITIONED,
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.rate = jack_get_sample_rate(client),
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.channels = this->n_in_ports);
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spa_jack_client_add_listener(this->client,
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&this->client_listener,
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&client_events, this);
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jack_activate(client);
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for (i = 0; ports[i]; i++) {
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struct port *port = GET_IN_PORT(this, i);
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if (jack_connect(client, jack_port_name(port->jack_port), ports[i])) {
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spa_log_warn(this->log, NAME" %p: Failed to connect %s to %s",
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this, jack_port_name(port->jack_port), ports[i]);
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}
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}
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res = 0;
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exit_free:
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jack_free(ports);
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exit:
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return res;
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}
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static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id,
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const struct spa_dict *props)
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{
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return -ENOTSUP;
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}
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static int
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impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id)
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{
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return -ENOTSUP;
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}
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static int port_enum_formats(void *object,
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enum spa_direction direction, uint32_t port_id,
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uint32_t index,
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const struct spa_pod *filter,
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struct spa_pod **param,
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struct spa_pod_builder *builder)
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{
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switch (index) {
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case 0:
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*param = spa_pod_builder_add_object(builder,
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SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
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SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
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SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
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SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_F32P),
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SPA_FORMAT_AUDIO_channels, SPA_POD_Int(1));
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break;
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default:
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return 0;
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}
|
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return 1;
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}
|
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|
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static int
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impl_node_port_enum_params(void *object, int seq,
|
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enum spa_direction direction, uint32_t port_id,
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uint32_t id, uint32_t start, uint32_t num,
|
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const struct spa_pod *filter)
|
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{
|
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struct impl *this = object;
|
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struct port *port;
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struct spa_pod_builder b = { 0 };
|
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uint8_t buffer[1024];
|
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struct spa_pod *param;
|
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struct spa_result_node_params result;
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uint32_t count = 0;
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int res;
|
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spa_return_val_if_fail(this != NULL, -EINVAL);
|
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spa_return_val_if_fail(num != 0, -EINVAL);
|
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|
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spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
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|
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port = GET_PORT(this, direction, port_id);
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result.id = id;
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result.next = start;
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next:
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result.index = result.next++;
|
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|
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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|
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switch (id) {
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case SPA_PARAM_EnumFormat:
|
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if ((res = port_enum_formats(this, direction, port_id,
|
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result.index, filter, ¶m, &b)) <= 0)
|
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return res;
|
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break;
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|
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case SPA_PARAM_Format:
|
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if (!port->have_format)
|
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return -EIO;
|
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if (result.index > 0)
|
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return 0;
|
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|
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param = spa_format_audio_raw_build(&b, id, &port->current_format.info.raw);
|
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break;
|
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|
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case SPA_PARAM_Buffers:
|
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{
|
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if (!port->have_format)
|
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return -EIO;
|
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if (result.index > 0)
|
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return 0;
|
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|
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param = spa_pod_builder_add_object(&b,
|
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SPA_TYPE_OBJECT_ParamBuffers, id,
|
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SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(2, 1, MAX_BUFFERS),
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SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1),
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SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int(
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1024 * port->stride,
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16 * port->stride,
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MAX_SAMPLES * port->stride),
|
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SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->stride),
|
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SPA_PARAM_BUFFERS_align, SPA_POD_Int(16));
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break;
|
||||
}
|
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case SPA_PARAM_IO:
|
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switch (result.index) {
|
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case 0:
|
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param = spa_pod_builder_add_object(&b,
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||||
SPA_TYPE_OBJECT_ParamIO, id,
|
||||
SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Buffers),
|
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SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers)));
|
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break;
|
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case 1:
|
||||
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;
|
||||
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_info(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_raw)
|
||||
return -EINVAL;
|
||||
|
||||
if (spa_format_audio_raw_parse(format, &info.info.raw) < 0)
|
||||
return -EINVAL;
|
||||
|
||||
if (info.info.raw.format == SPA_AUDIO_FORMAT_F32P)
|
||||
port->stride = 4;
|
||||
else
|
||||
return -EINVAL;
|
||||
|
||||
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);
|
||||
|
||||
if (!port->have_format)
|
||||
return -EIO;
|
||||
|
||||
clear_buffers(this, port);
|
||||
|
||||
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;
|
||||
case SPA_IO_Clock:
|
||||
port->io_clock = 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;
|
||||
|
||||
if (io == NULL || io->status != SPA_STATUS_HAVE_BUFFER)
|
||||
continue;
|
||||
|
||||
if (io->buffer_id >= port->n_buffers)
|
||||
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];
|
||||
|
||||
dst = jack_port_get_buffer(port->jack_port, n_frames);
|
||||
|
||||
memcpy(dst, src->data, n_frames * port->stride);
|
||||
src->chunk->offset = 0;
|
||||
src->chunk->size = n_frames * port->stride;
|
||||
src->chunk->stride = port->stride;
|
||||
src->chunk->flags = 0;
|
||||
|
||||
io->status = SPA_STATUS_NEED_BUFFER;
|
||||
|
||||
res |= SPA_STATUS_NEED_BUFFER;
|
||||
}
|
||||
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, uint32_t 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 (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;
|
||||
uint32_t i;
|
||||
|
||||
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;
|
||||
|
||||
for (i = 0; i < n_support; i++) {
|
||||
if (support[i].type == SPA_TYPE_INTERFACE_Log)
|
||||
this->log = support[i].data;
|
||||
}
|
||||
|
||||
for (i = 0; info && i < info->n_items; i++) {
|
||||
if (strcmp(info->items[i].key, SPA_KEY_API_JACK_CLIENT) == 0)
|
||||
sscanf(info->items[i].value, "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->info.params = this->params;
|
||||
this->info.n_params = 4;
|
||||
|
||||
init_ports(this);
|
||||
|
||||
spa_log_info(this->log, NAME " %p: initialized", 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,
|
||||
};
|
||||
Loading…
Add table
Add a link
Reference in a new issue