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-rw-r--r--spa/plugins/jack/jack-source.c946
1 files changed, 946 insertions, 0 deletions
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, &param, &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,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 11:00:00 +0000