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-rw-r--r--spa/plugins/bluez5/sco-sink.c1517
1 files changed, 1517 insertions, 0 deletions
diff --git a/spa/plugins/bluez5/sco-sink.c b/spa/plugins/bluez5/sco-sink.c
new file mode 100644
index 0000000..18a34f6
--- /dev/null
+++ b/spa/plugins/bluez5/sco-sink.c
@@ -0,0 +1,1517 @@
+/* Spa SCO Sink
+ *
+ * Copyright © 2019 Collabora Ltd.
+ *
+ * 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 <unistd.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <arpa/inet.h>
+#include <sys/ioctl.h>
+
+#include <spa/support/plugin.h>
+#include <spa/support/loop.h>
+#include <spa/support/log.h>
+#include <spa/support/system.h>
+#include <spa/utils/result.h>
+#include <spa/utils/list.h>
+#include <spa/utils/keys.h>
+#include <spa/utils/names.h>
+#include <spa/utils/string.h>
+#include <spa/monitor/device.h>
+
+#include <spa/node/node.h>
+#include <spa/node/utils.h>
+#include <spa/node/io.h>
+#include <spa/node/keys.h>
+#include <spa/param/param.h>
+#include <spa/param/latency-utils.h>
+#include <spa/param/audio/format.h>
+#include <spa/param/audio/format-utils.h>
+#include <spa/pod/filter.h>
+
+#include <sbc/sbc.h>
+
+#include "defs.h"
+
+static struct spa_log_topic log_topic = SPA_LOG_TOPIC(0, "spa.bluez5.sink.sco");
+#undef SPA_LOG_TOPIC_DEFAULT
+#define SPA_LOG_TOPIC_DEFAULT &log_topic
+
+#define DEFAULT_CLOCK_NAME "clock.system.monotonic"
+
+struct props {
+ char clock_name[64];
+};
+
+#define MAX_BUFFERS 32
+
+struct buffer {
+ uint32_t id;
+ unsigned int outstanding:1;
+ struct spa_buffer *buf;
+ struct spa_meta_header *h;
+ struct spa_list link;
+};
+
+struct port {
+ struct spa_audio_info current_format;
+ int frame_size;
+ unsigned int have_format:1;
+
+ uint64_t info_all;
+ struct spa_port_info info;
+ struct spa_io_buffers *io;
+ struct spa_io_rate_match *rate_match;
+ struct spa_latency_info latency;
+#define IDX_EnumFormat 0
+#define IDX_Meta 1
+#define IDX_IO 2
+#define IDX_Format 3
+#define IDX_Buffers 4
+#define IDX_Latency 5
+#define N_PORT_PARAMS 6
+ struct spa_param_info params[N_PORT_PARAMS];
+
+ struct buffer buffers[MAX_BUFFERS];
+ uint32_t n_buffers;
+
+ struct spa_list ready;
+
+ struct buffer *current_buffer;
+ uint32_t ready_offset;
+ uint8_t write_buffer[4096];
+ uint32_t write_buffer_size;
+};
+
+struct impl {
+ struct spa_handle handle;
+ struct spa_node node;
+
+ /* Support */
+ struct spa_log *log;
+ struct spa_loop *data_loop;
+ struct spa_system *data_system;
+
+ /* Hooks and callbacks */
+ struct spa_hook_list hooks;
+ struct spa_callbacks callbacks;
+
+ /* Info */
+ uint64_t info_all;
+ struct spa_node_info info;
+#define IDX_PropInfo 0
+#define IDX_Props 1
+#define N_NODE_PARAMS 2
+ struct spa_param_info params[N_NODE_PARAMS];
+ struct props props;
+
+ uint32_t quantum_limit;
+
+ /* Transport */
+ struct spa_bt_transport *transport;
+ struct spa_hook transport_listener;
+
+ /* Port */
+ struct port port;
+
+ /* Flags */
+ unsigned int started:1;
+ unsigned int following:1;
+ unsigned int flush_pending:1;
+
+ /* Sources */
+ struct spa_source source;
+ struct spa_source flush_timer_source;
+
+ /* Timer */
+ int timerfd;
+ int flush_timerfd;
+ struct spa_io_clock *clock;
+ struct spa_io_position *position;
+
+ uint64_t current_time;
+ uint64_t next_time;
+ uint64_t process_time;
+ uint64_t prev_flush_time;
+ uint64_t next_flush_time;
+
+ /* mSBC */
+ sbc_t msbc;
+ uint8_t *buffer;
+ uint8_t *buffer_head;
+ uint8_t *buffer_next;
+ int buffer_size;
+ int msbc_seq;
+};
+
+#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) == 0)
+
+static const char sntable[4] = { 0x08, 0x38, 0xC8, 0xF8 };
+
+static void reset_props(struct props *props)
+{
+ strncpy(props->clock_name, DEFAULT_CLOCK_NAME, sizeof(props->clock_name));
+}
+
+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:
+ {
+ switch (result.index) {
+ default:
+ return 0;
+ }
+ break;
+ }
+ case SPA_PARAM_Props:
+ {
+ switch (result.index) {
+ case 0:
+ param = spa_pod_builder_add_object(&b,
+ SPA_TYPE_OBJECT_Props, id);
+ 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 set_timeout(struct impl *this, uint64_t time)
+{
+ struct itimerspec ts;
+ ts.it_value.tv_sec = time / SPA_NSEC_PER_SEC;
+ ts.it_value.tv_nsec = time % SPA_NSEC_PER_SEC;
+ ts.it_interval.tv_sec = 0;
+ ts.it_interval.tv_nsec = 0;
+ return spa_system_timerfd_settime(this->data_system,
+ this->timerfd, SPA_FD_TIMER_ABSTIME, &ts, NULL);
+}
+
+static int set_timers(struct impl *this)
+{
+ struct timespec now;
+
+ spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &now);
+ this->next_time = SPA_TIMESPEC_TO_NSEC(&now);
+
+ return set_timeout(this, this->following ? 0 : this->next_time);
+}
+
+static int do_reassign_follower(struct spa_loop *loop,
+ bool async,
+ uint32_t seq,
+ const void *data,
+ size_t size,
+ void *user_data)
+{
+ struct impl *this = user_data;
+ set_timers(this);
+ return 0;
+}
+
+static inline bool is_following(struct impl *this)
+{
+ return this->position && this->clock && this->position->clock.id != this->clock->id;
+}
+
+static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
+{
+ struct impl *this = object;
+ bool following;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ switch (id) {
+ case SPA_IO_Clock:
+ this->clock = data;
+ if (this->clock != NULL) {
+ spa_scnprintf(this->clock->name,
+ sizeof(this->clock->name),
+ "%s", this->props.clock_name);
+ }
+ break;
+ case SPA_IO_Position:
+ this->position = data;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ following = is_following(this);
+ if (this->started && following != this->following) {
+ spa_log_debug(this->log, "%p: reassign follower %d->%d", this, this->following, following);
+ this->following = following;
+ spa_loop_invoke(this->data_loop, do_reassign_follower, 0, NULL, 0, true, this);
+ }
+ return 0;
+}
+
+static void emit_node_info(struct impl *this, bool full);
+
+static int apply_props(struct impl *this, const struct spa_pod *param)
+{
+ struct props new_props = this->props;
+ int changed = 0;
+
+ if (param == NULL) {
+ reset_props(&new_props);
+ } else {
+ spa_pod_parse_object(param,
+ SPA_TYPE_OBJECT_Props, NULL);
+ }
+
+ changed = (memcmp(&new_props, &this->props, sizeof(struct props)) != 0);
+ this->props = new_props;
+ return changed;
+}
+
+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) {
+ case SPA_PARAM_Props:
+ {
+ if (apply_props(this, param) > 0) {
+ this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
+ this->params[IDX_Props].flags ^= SPA_PARAM_INFO_SERIAL;
+ emit_node_info(this, false);
+ }
+ break;
+ }
+ default:
+ return -ENOENT;
+ }
+
+ return 0;
+}
+
+static void enable_flush_timer(struct impl *this, bool enabled)
+{
+ struct itimerspec ts;
+
+ if (!enabled)
+ this->next_flush_time = 0;
+
+ ts.it_value.tv_sec = this->next_flush_time / SPA_NSEC_PER_SEC;
+ ts.it_value.tv_nsec = this->next_flush_time % SPA_NSEC_PER_SEC;
+ ts.it_interval.tv_sec = 0;
+ ts.it_interval.tv_nsec = 0;
+ spa_system_timerfd_settime(this->data_system,
+ this->flush_timerfd, SPA_FD_TIMER_ABSTIME, &ts, NULL);
+
+ this->flush_pending = enabled;
+}
+
+static uint32_t get_queued_frames(struct impl *this)
+{
+ struct port *port = &this->port;
+ uint32_t bytes = 0;
+ struct buffer *b;
+
+ spa_list_for_each(b, &port->ready, link) {
+ struct spa_data *d = b->buf->datas;
+
+ bytes += d[0].chunk->size;
+ }
+
+ if (bytes > port->ready_offset)
+ bytes -= port->ready_offset;
+ else
+ bytes = 0;
+
+ return bytes / port->frame_size;
+}
+
+static void flush_data(struct impl *this)
+{
+ struct port *port = &this->port;
+ const uint32_t min_in_size =
+ (this->transport->codec == HFP_AUDIO_CODEC_MSBC) ?
+ MSBC_DECODED_SIZE : this->transport->write_mtu;
+ uint8_t * const packet =
+ (this->transport->codec == HFP_AUDIO_CODEC_MSBC) ?
+ this->buffer_head : port->write_buffer;
+ const uint32_t packet_samples = min_in_size / port->frame_size;
+ const uint64_t packet_time = (uint64_t)packet_samples * SPA_NSEC_PER_SEC
+ / port->current_format.info.raw.rate;
+ int processed = 0;
+ int written;
+
+ if (this->transport == NULL || this->transport->sco_io == NULL)
+ return;
+
+ while (!spa_list_is_empty(&port->ready) && port->write_buffer_size < min_in_size) {
+ struct spa_data *datas;
+
+ /* get buffer */
+ if (!port->current_buffer) {
+ spa_return_if_fail(!spa_list_is_empty(&port->ready));
+ port->current_buffer = spa_list_first(&port->ready, struct buffer, link);
+ port->ready_offset = 0;
+ }
+ datas = port->current_buffer->buf->datas;
+
+ /* if buffer has data, copy it into the write buffer */
+ if (datas[0].chunk->size - port->ready_offset > 0) {
+ const uint32_t avail =
+ SPA_MIN(min_in_size, datas[0].chunk->size - port->ready_offset);
+ const uint32_t size =
+ (avail + port->write_buffer_size) > min_in_size ?
+ min_in_size - port->write_buffer_size : avail;
+ memcpy(port->write_buffer + port->write_buffer_size,
+ (uint8_t *)datas[0].data + port->ready_offset,
+ size);
+ port->write_buffer_size += size;
+ port->ready_offset += size;
+ } else {
+ struct buffer *b;
+
+ b = port->current_buffer;
+ port->current_buffer = NULL;
+
+ /* reuse buffer */
+ spa_list_remove(&b->link);
+ b->outstanding = true;
+ spa_log_trace(this->log, "sco-sink %p: reuse buffer %u", this, b->id);
+ port->io->buffer_id = b->id;
+ spa_node_call_reuse_buffer(&this->callbacks, 0, b->id);
+ }
+ }
+
+ if (this->flush_pending) {
+ spa_log_trace(this->log, "%p: wait for flush timer", this);
+ return;
+ }
+
+ if (port->write_buffer_size < min_in_size) {
+ /* wait for more data */
+ spa_log_trace(this->log, "%p: skip flush", this);
+ enable_flush_timer(this, false);
+ return;
+ }
+
+ if (this->transport->codec == HFP_AUDIO_CODEC_MSBC) {
+ ssize_t out_encoded;
+
+ /* Encode */
+ if (this->buffer_next + MSBC_ENCODED_SIZE > this->buffer + this->buffer_size) {
+ /* Buffer overrun; shouldn't usually happen. Drop data and reset. */
+ this->buffer_head = this->buffer_next = this->buffer;
+ spa_log_warn(this->log, "sco-sink: mSBC buffer overrun, dropping data");
+ }
+ this->buffer_next[0] = 0x01;
+ this->buffer_next[1] = sntable[this->msbc_seq % 4];
+ this->buffer_next[59] = 0x00;
+ this->msbc_seq = (this->msbc_seq + 1) % 4;
+ processed = sbc_encode(&this->msbc, port->write_buffer, port->write_buffer_size,
+ this->buffer_next + 2, MSBC_ENCODED_SIZE - 3, &out_encoded);
+ if (processed < 0) {
+ spa_log_warn(this->log, "sbc_encode failed: %d", processed);
+ return;
+ }
+ this->buffer_next += out_encoded + 3;
+ port->write_buffer_size = 0;
+
+ /* Write */
+ written = spa_bt_sco_io_write(this->transport->sco_io, packet,
+ this->buffer_next - this->buffer_head);
+ if (written < 0) {
+ spa_log_warn(this->log, "failed to write data: %d (%s)",
+ written, spa_strerror(written));
+ goto stop;
+ }
+
+ this->buffer_head += written;
+
+ if (this->buffer_head == this->buffer_next)
+ this->buffer_head = this->buffer_next = this->buffer;
+ else if (this->buffer_next + MSBC_ENCODED_SIZE > this->buffer + this->buffer_size) {
+ /* Written bytes is not necessarily commensurate
+ * with MSBC_ENCODED_SIZE. If this occurs, copy data.
+ */
+ int size = this->buffer_next - this->buffer_head;
+ spa_memmove(this->buffer, this->buffer_head, size);
+ this->buffer_next = this->buffer + size;
+ this->buffer_head = this->buffer;
+ }
+ } else {
+ written = spa_bt_sco_io_write(this->transport->sco_io, packet,
+ port->write_buffer_size);
+ if (written < 0) {
+ spa_log_warn(this->log, "sco-sink: write failure: %d (%s)",
+ written, spa_strerror(written));
+ goto stop;
+ } else if (written == 0) {
+ /* EAGAIN or similar, just skip ahead */
+ written = SPA_MIN(port->write_buffer_size, (uint32_t)48);
+ }
+
+ processed = written;
+ port->write_buffer_size -= written;
+
+ if (port->write_buffer_size > 0 && written > 0) {
+ spa_memmove(port->write_buffer, port->write_buffer + written, port->write_buffer_size);
+ }
+ }
+
+ if (SPA_UNLIKELY(spa_log_level_topic_enabled(this->log, SPA_LOG_TOPIC_DEFAULT, SPA_LOG_LEVEL_TRACE))) {
+ struct timespec ts;
+ uint64_t now;
+ uint64_t dt;
+
+ spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &ts);
+ now = SPA_TIMESPEC_TO_NSEC(&ts);
+ dt = now - this->prev_flush_time;
+ this->prev_flush_time = now;
+
+ spa_log_trace(this->log,
+ "%p: send wrote:%d dt:%"PRIu64,
+ this, written, dt);
+ }
+
+ spa_log_trace(this->log, "write socket data %d", written);
+
+ if (SPA_LIKELY(this->position)) {
+ uint32_t frames = get_queued_frames(this);
+ uint64_t duration_ns;
+
+ /*
+ * Flush at the time position of the next buffered sample.
+ */
+ duration_ns = ((uint64_t)this->position->clock.duration * SPA_NSEC_PER_SEC
+ / this->position->clock.rate.denom);
+ this->next_flush_time = this->process_time + duration_ns
+ - ((uint64_t)frames * SPA_NSEC_PER_SEC
+ / port->current_format.info.raw.rate);
+
+ /*
+ * We could delay the output by one packet to avoid waiting
+ * for the next buffer and so make send intervals more regular.
+ * However, this appears not needed in practice, and it's better
+ * to not add latency if not needed.
+ */
+#if 0
+ this->next_flush_time += SPA_MIN(packet_time,
+ duration_ns * (port->n_buffers - 1));
+#endif
+ } else {
+ if (this->next_flush_time == 0)
+ this->next_flush_time = this->process_time;
+ this->next_flush_time += packet_time;
+ }
+
+ enable_flush_timer(this, true);
+ return;
+
+stop:
+ if (this->source.loop)
+ spa_loop_remove_source(this->data_loop, &this->source);
+ enable_flush_timer(this, false);
+}
+
+static void sco_on_flush_timeout(struct spa_source *source)
+{
+ struct impl *this = source->data;
+ uint64_t exp;
+ int res;
+
+ spa_log_trace(this->log, "%p: flush on timeout", this);
+
+ if ((res = spa_system_timerfd_read(this->data_system, this->flush_timerfd, &exp)) < 0) {
+ if (res != -EAGAIN)
+ spa_log_warn(this->log, "error reading timerfd: %s", spa_strerror(res));
+ return;
+ }
+
+ if (this->transport == NULL) {
+ enable_flush_timer(this, false);
+ return;
+ }
+
+ while (exp-- > 0) {
+ this->flush_pending = false;
+ flush_data(this);
+ }
+}
+
+static void sco_on_timeout(struct spa_source *source)
+{
+ struct impl *this = source->data;
+ struct port *port = &this->port;
+ uint64_t exp, duration;
+ uint32_t rate;
+ struct spa_io_buffers *io = port->io;
+ uint64_t prev_time, now_time;
+ int res;
+
+ if (this->transport == NULL)
+ return;
+
+ if (this->started) {
+ if ((res = spa_system_timerfd_read(this->data_system, this->timerfd, &exp)) < 0) {
+ if (res != -EAGAIN)
+ spa_log_warn(this->log, "error reading timerfd: %s", spa_strerror(res));
+ return;
+ }
+ }
+
+ prev_time = this->current_time;
+ now_time = this->current_time = this->next_time;
+
+ spa_log_debug(this->log, "%p: timer %"PRIu64" %"PRIu64"", this,
+ now_time, now_time - prev_time);
+
+ if (SPA_LIKELY(this->position)) {
+ duration = this->position->clock.duration;
+ rate = this->position->clock.rate.denom;
+ } else {
+ duration = 1024;
+ rate = 48000;
+ }
+
+ this->next_time = now_time + duration * SPA_NSEC_PER_SEC / rate;
+
+ if (SPA_LIKELY(this->clock)) {
+ this->clock->nsec = now_time;
+ this->clock->position += duration;
+ this->clock->duration = duration;
+ this->clock->rate_diff = 1.0f;
+ this->clock->next_nsec = this->next_time;
+ this->clock->delay = 0;
+ }
+
+ spa_log_trace(this->log, "%p: %d", this, io->status);
+ io->status = SPA_STATUS_NEED_DATA;
+ spa_node_call_ready(&this->callbacks, SPA_STATUS_NEED_DATA);
+
+ set_timeout(this, this->next_time);
+}
+
+/* greater common divider */
+static int gcd(int a, int b) {
+ while(b) {
+ int c = b;
+ b = a % b;
+ a = c;
+ }
+ return a;
+}
+/* least common multiple */
+static int lcm(int a, int b) {
+ return (a*b)/gcd(a,b);
+}
+
+static int do_start(struct impl *this)
+{
+ bool do_accept;
+ int res;
+
+ /* Don't do anything if the node has already started */
+ if (this->started)
+ return 0;
+
+ /* Make sure the transport is valid */
+ spa_return_val_if_fail(this->transport != NULL, -EIO);
+
+ this->following = is_following(this);
+
+ spa_log_debug(this->log, "%p: start following:%d", this, this->following);
+
+ /* Do accept if Gateway; otherwise do connect for Head Unit */
+ do_accept = this->transport->profile & SPA_BT_PROFILE_HEADSET_AUDIO_GATEWAY;
+
+ /* acquire the socket fd (false -> connect | true -> accept) */
+ if ((res = spa_bt_transport_acquire(this->transport, do_accept)) < 0)
+ return res;
+
+ /* Init mSBC if needed */
+ if (this->transport->codec == HFP_AUDIO_CODEC_MSBC) {
+ sbc_init_msbc(&this->msbc, 0);
+ /* Libsbc expects audio samples by default in host endianness, mSBC requires little endian */
+ this->msbc.endian = SBC_LE;
+
+ /* write_mtu might not be correct at this point, so we'll throw
+ * in some common ones, at the cost of a potentially larger
+ * allocation (size <= 120 * write_mtu). If it still fails to be
+ * commensurate, we may end up doing memmoves, but nothing worse
+ * is going to happen.
+ */
+ this->buffer_size = lcm(24, lcm(60, lcm(this->transport->write_mtu, 2 * MSBC_ENCODED_SIZE)));
+ this->buffer = calloc(this->buffer_size, sizeof(uint8_t));
+ this->buffer_head = this->buffer_next = this->buffer;
+ if (this->buffer == NULL) {
+ res = -errno;
+ goto fail;
+ }
+ }
+
+ spa_return_val_if_fail(this->transport->write_mtu <= sizeof(this->port.write_buffer), -EINVAL);
+
+ /* start socket i/o */
+ if ((res = spa_bt_transport_ensure_sco_io(this->transport, this->data_loop)) < 0)
+ goto fail;
+
+ /* Add the timeout callback */
+ this->source.data = this;
+ this->source.fd = this->timerfd;
+ this->source.func = sco_on_timeout;
+ this->source.mask = SPA_IO_IN;
+ this->source.rmask = 0;
+ spa_loop_add_source(this->data_loop, &this->source);
+
+ this->flush_timer_source.data = this;
+ this->flush_timer_source.fd = this->flush_timerfd;
+ this->flush_timer_source.func = sco_on_flush_timeout;
+ this->flush_timer_source.mask = SPA_IO_IN;
+ this->flush_timer_source.rmask = 0;
+ spa_loop_add_source(this->data_loop, &this->flush_timer_source);
+
+ /* start processing */
+ this->flush_pending = false;
+ set_timers(this);
+
+ /* Set the started flag */
+ this->started = true;
+
+ return 0;
+
+fail:
+ free(this->buffer);
+ this->buffer = NULL;
+ spa_bt_transport_release(this->transport);
+ return res;
+}
+
+/* Drop any buffered data remaining in the port */
+static void drop_port_output(struct impl *this)
+{
+ struct port *port = &this->port;
+
+ port->write_buffer_size = 0;
+ port->current_buffer = NULL;
+ port->ready_offset = 0;
+
+ while (!spa_list_is_empty(&port->ready)) {
+ struct buffer *b;
+ b = spa_list_first(&port->ready, struct buffer, link);
+
+ spa_list_remove(&b->link);
+ b->outstanding = true;
+ port->io->buffer_id = b->id;
+ spa_node_call_reuse_buffer(&this->callbacks, 0, b->id);
+ }
+}
+
+static int do_remove_source(struct spa_loop *loop,
+ bool async,
+ uint32_t seq,
+ const void *data,
+ size_t size,
+ void *user_data)
+{
+ struct impl *this = user_data;
+ struct itimerspec ts;
+
+ set_timeout(this, 0);
+ if (this->source.loop)
+ spa_loop_remove_source(this->data_loop, &this->source);
+
+ if (this->flush_timer_source.loop)
+ spa_loop_remove_source(this->data_loop, &this->flush_timer_source);
+ ts.it_value.tv_sec = 0;
+ ts.it_value.tv_nsec = 0;
+ ts.it_interval.tv_sec = 0;
+ ts.it_interval.tv_nsec = 0;
+ spa_system_timerfd_settime(this->data_system, this->flush_timerfd, 0, &ts, NULL);
+
+ /* Drop buffered data in the ready queue. Ideally there shouldn't be any. */
+ drop_port_output(this);
+
+ return 0;
+}
+
+static int do_stop(struct impl *this)
+{
+ int res = 0;
+
+ if (!this->started)
+ return 0;
+
+ spa_log_trace(this->log, "sco-sink %p: stop", this);
+
+ spa_loop_invoke(this->data_loop, do_remove_source, 0, NULL, 0, true, this);
+
+ this->started = false;
+
+ if (this->buffer) {
+ free(this->buffer);
+ this->buffer = NULL;
+ this->buffer_head = this->buffer_next = this->buffer;
+ }
+
+ if (this->transport) {
+ /* Release the transport; it is responsible for closing the fd */
+ res = spa_bt_transport_release(this->transport);
+ }
+
+ return res;
+}
+
+static int impl_node_send_command(void *object, const struct spa_command *command)
+{
+ struct impl *this = object;
+ struct port *port;
+ int res;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+ spa_return_val_if_fail(command != NULL, -EINVAL);
+
+ port = &this->port;
+
+ switch (SPA_NODE_COMMAND_ID(command)) {
+ case SPA_NODE_COMMAND_Start:
+ if (!port->have_format)
+ return -EIO;
+ if (port->n_buffers == 0)
+ return -EIO;
+ if ((res = do_start(this)) < 0)
+ return res;
+ break;
+ case SPA_NODE_COMMAND_Pause:
+ case SPA_NODE_COMMAND_Suspend:
+ if ((res = do_stop(this)) < 0)
+ return res;
+ break;
+ default:
+ return -ENOTSUP;
+ }
+ return 0;
+}
+
+static void emit_node_info(struct impl *this, bool full)
+{
+ static const struct spa_dict_item hu_node_info_items[] = {
+ { SPA_KEY_DEVICE_API, "bluez5" },
+ { SPA_KEY_MEDIA_CLASS, "Audio/Sink" },
+ { SPA_KEY_NODE_DRIVER, "true" },
+ };
+
+ const struct spa_dict_item ag_node_info_items[] = {
+ { SPA_KEY_DEVICE_API, "bluez5" },
+ { SPA_KEY_MEDIA_CLASS, "Stream/Input/Audio" },
+ { "media.name", ((this->transport && this->transport->device->name) ?
+ this->transport->device->name : "HSP/HFP") },
+ { SPA_KEY_MEDIA_ROLE, "Communication" },
+ };
+ bool is_ag = this->transport &&
+ (this->transport->profile & SPA_BT_PROFILE_HEADSET_AUDIO_GATEWAY);
+ uint64_t old = full ? this->info.change_mask : 0;
+
+ if (full)
+ this->info.change_mask = this->info_all;
+ if (this->info.change_mask) {
+ this->info.props = is_ag ?
+ &SPA_DICT_INIT_ARRAY(ag_node_info_items) :
+ &SPA_DICT_INIT_ARRAY(hu_node_info_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) {
+ spa_node_emit_port_info(&this->hooks,
+ SPA_DIRECTION_INPUT, 0, &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;
+
+ 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, &this->port, 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 int impl_node_sync(void *object, int seq)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ spa_node_emit_result(&this->hooks, seq, 0, 0, NULL);
+
+ return 0;
+}
+
+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
+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;
+
+ 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 = &this->port;
+
+ 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 (result.index > 0)
+ return 0;
+ if (this->transport == NULL)
+ return -EIO;
+
+ /* set the info structure */
+ struct spa_audio_info_raw info = { 0, };
+ info.format = SPA_AUDIO_FORMAT_S16_LE;
+ info.channels = 1;
+ info.position[0] = SPA_AUDIO_CHANNEL_MONO;
+
+ /* CVSD format has a rate of 8kHz
+ * MSBC format has a rate of 16kHz */
+ if (this->transport->codec == HFP_AUDIO_CODEC_MSBC)
+ info.rate = 16000;
+ else
+ info.rate = 8000;
+
+ /* build the param */
+ param = spa_format_audio_raw_build(&b, id, &info);
+
+ break;
+
+ case SPA_PARAM_Format:
+ if (!port->have_format)
+ return -EIO;
+ if (result.index > 0)
+ return 0;
+
+ param = spa_format_audio_raw_build(&b, id, &port->current_format.info.raw);
+ 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(
+ this->quantum_limit * port->frame_size,
+ 16 * port->frame_size,
+ INT32_MAX),
+ SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->frame_size));
+ break;
+
+ case SPA_PARAM_Meta:
+ switch (result.index) {
+ case 0:
+ param = spa_pod_builder_add_object(&b,
+ SPA_TYPE_OBJECT_ParamMeta, id,
+ SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header),
+ SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header)));
+ 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_Buffers),
+ SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers)));
+ break;
+ case 1:
+ param = spa_pod_builder_add_object(&b,
+ SPA_TYPE_OBJECT_ParamIO, id,
+ SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_RateMatch),
+ SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_rate_match)));
+ break;
+ default:
+ return 0;
+ }
+ break;
+
+ case SPA_PARAM_Latency:
+ switch (result.index) {
+ case 0:
+ param = spa_latency_build(&b, id, &port->latency);
+ 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)
+{
+ do_stop(this);
+ if (port->n_buffers > 0) {
+ spa_list_init(&port->ready);
+ port->n_buffers = 0;
+ }
+ return 0;
+}
+
+static int port_set_format(struct impl *this, struct port *port,
+ uint32_t flags,
+ const struct spa_pod *format)
+{
+ int err;
+
+ if (format == NULL) {
+ spa_log_debug(this->log, "clear format");
+ clear_buffers(this, port);
+ port->have_format = false;
+ } else {
+ struct spa_audio_info info = { 0 };
+
+ if ((err = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0)
+ return err;
+
+ 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_S16_LE ||
+ info.info.raw.rate == 0 ||
+ info.info.raw.channels != 1)
+ return -EINVAL;
+
+ port->frame_size = info.info.raw.channels * 2;
+ port->current_format = info;
+ port->have_format = true;
+ }
+
+ port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS;
+ if (port->have_format) {
+ port->info.change_mask |= SPA_PORT_CHANGE_MASK_FLAGS;
+ port->info.flags = SPA_PORT_FLAG_LIVE;
+ port->info.change_mask |= SPA_PORT_CHANGE_MASK_RATE;
+ port->info.rate = SPA_FRACTION(1, port->current_format.info.raw.rate);
+ port->params[IDX_Format] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE);
+ port->params[IDX_Buffers] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ);
+ port->params[IDX_Latency].flags ^= SPA_PARAM_INFO_SERIAL;
+ } else {
+ port->params[IDX_Format] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
+ port->params[IDX_Buffers] = 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(node, direction, port_id), -EINVAL);
+ port = &this->port;
+
+ switch (id) {
+ case SPA_PARAM_Format:
+ res = port_set_format(this, port, flags, param);
+ break;
+ case SPA_PARAM_Latency:
+ res = 0;
+ break;
+ default:
+ res = -ENOENT;
+ break;
+ }
+ 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 = &this->port;
+
+ spa_log_debug(this->log, "use buffers %d", n_buffers);
+
+ 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 = &port->buffers[i];
+
+ b->buf = buffers[i];
+ b->id = i;
+ b->outstanding = true;
+
+ b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h));
+
+ if (buffers[i]->datas[0].data == NULL) {
+ spa_log_error(this->log, "%p: need mapped memory", this);
+ return -EINVAL;
+ }
+ }
+ 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 = &this->port;
+
+ switch (id) {
+ case SPA_IO_Buffers:
+ port->io = data;
+ break;
+ case SPA_IO_RateMatch:
+ port->rate_match = 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;
+ struct port *port;
+ struct spa_io_buffers *io;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ port = &this->port;
+ if ((io = port->io) == NULL)
+ return -EIO;
+
+ if (this->position && this->position->clock.flags & SPA_IO_CLOCK_FLAG_FREEWHEEL) {
+ io->status = SPA_STATUS_NEED_DATA;
+ return SPA_STATUS_HAVE_DATA;
+ }
+
+ if (io->status == SPA_STATUS_HAVE_DATA && io->buffer_id < port->n_buffers) {
+ struct buffer *b = &port->buffers[io->buffer_id];
+
+ if (!b->outstanding) {
+ spa_log_warn(this->log, "%p: buffer %u in use", this, io->buffer_id);
+ io->status = -EINVAL;
+ return -EINVAL;
+ }
+
+ spa_log_trace(this->log, "%p: queue buffer %u", this, io->buffer_id);
+
+ spa_list_append(&port->ready, &b->link);
+ b->outstanding = false;
+ io->buffer_id = SPA_ID_INVALID;
+ io->status = SPA_STATUS_OK;
+ }
+
+ if (this->following) {
+ if (this->position) {
+ this->current_time = this->position->clock.nsec;
+ } else {
+ struct timespec now;
+ spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &now);
+ this->current_time = SPA_TIMESPEC_TO_NSEC(&now);
+ }
+ }
+
+ this->process_time = this->current_time;
+
+ if (!spa_list_is_empty(&port->ready)) {
+ spa_log_trace(this->log, "%p: flush on process", this);
+ flush_data(this);
+ }
+
+ return SPA_STATUS_HAVE_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,
+ .sync = impl_node_sync,
+ .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 do_transport_destroy(struct spa_loop *loop,
+ bool async,
+ uint32_t seq,
+ const void *data,
+ size_t size,
+ void *user_data)
+{
+ struct impl *this = user_data;
+ this->transport = NULL;
+ return 0;
+}
+
+static void transport_destroy(void *data)
+{
+ struct impl *this = data;
+ spa_log_debug(this->log, "transport %p destroy", this->transport);
+ spa_loop_invoke(this->data_loop, do_transport_destroy, 0, NULL, 0, true, this);
+}
+
+static const struct spa_bt_transport_events transport_events = {
+ SPA_VERSION_BT_TRANSPORT_EVENTS,
+ .destroy = transport_destroy,
+};
+
+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 = (struct impl *) handle;
+
+ do_stop(this);
+ if (this->transport)
+ spa_hook_remove(&this->transport_listener);
+ spa_system_close(this->data_system, this->timerfd);
+ spa_system_close(this->data_system, this->flush_timerfd);
+ 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;
+ const char *str;
+
+ spa_return_val_if_fail(factory != NULL, -EINVAL);
+ spa_return_val_if_fail(handle != NULL, -EINVAL);
+
+ handle->get_interface = impl_get_interface;
+ handle->clear = impl_clear;
+
+ this = (struct impl *) handle;
+
+ this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
+ this->data_loop = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataLoop);
+ this->data_system = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataSystem);
+
+ spa_log_topic_init(this->log, &log_topic);
+
+ if (this->data_loop == NULL) {
+ spa_log_error(this->log, "a data loop is needed");
+ return -EINVAL;
+ }
+ if (this->data_system == NULL) {
+ spa_log_error(this->log, "a data system is needed");
+ return -EINVAL;
+ }
+
+ this->node.iface = SPA_INTERFACE_INIT(
+ SPA_TYPE_INTERFACE_Node,
+ SPA_VERSION_NODE,
+ &impl_node, this);
+ spa_hook_list_init(&this->hooks);
+
+ reset_props(&this->props);
+
+ this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
+ SPA_NODE_CHANGE_MASK_PARAMS |
+ SPA_NODE_CHANGE_MASK_PROPS;
+ this->info = SPA_NODE_INFO_INIT();
+ this->info.max_input_ports = 1;
+ this->info.max_output_ports = 0;
+ this->info.flags = SPA_NODE_FLAG_RT;
+ this->params[IDX_PropInfo] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ);
+ this->params[IDX_Props] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
+ this->info.params = this->params;
+ this->info.n_params = N_NODE_PARAMS;
+
+ port = &this->port;
+ port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
+ SPA_PORT_CHANGE_MASK_PARAMS;
+ port->info = SPA_PORT_INFO_INIT();
+ port->info.flags = 0;
+ port->params[IDX_EnumFormat] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
+ port->params[IDX_Meta] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ);
+ port->params[IDX_IO] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ);
+ port->params[IDX_Format] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
+ port->params[IDX_Buffers] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
+ port->params[IDX_Latency] = SPA_PARAM_INFO(SPA_PARAM_Latency, SPA_PARAM_INFO_READWRITE);
+ port->info.params = port->params;
+ port->info.n_params = N_PORT_PARAMS;
+
+ port->latency = SPA_LATENCY_INFO(SPA_DIRECTION_INPUT);
+ port->latency.min_quantum = 1.0f;
+ port->latency.max_quantum = 1.0f;
+
+ spa_list_init(&port->ready);
+
+ this->quantum_limit = 8192;
+
+ if (info && (str = spa_dict_lookup(info, "clock.quantum-limit")))
+ spa_atou32(str, &this->quantum_limit, 0);
+
+ if (info && (str = spa_dict_lookup(info, SPA_KEY_API_BLUEZ5_TRANSPORT)))
+ sscanf(str, "pointer:%p", &this->transport);
+
+ if (this->transport == NULL) {
+ spa_log_error(this->log, "a transport is needed");
+ return -EINVAL;
+ }
+ spa_bt_transport_add_listener(this->transport,
+ &this->transport_listener, &transport_events, this);
+
+ this->timerfd = spa_system_timerfd_create(this->data_system,
+ CLOCK_MONOTONIC, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
+
+ this->flush_timerfd = spa_system_timerfd_create(this->data_system,
+ CLOCK_MONOTONIC, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
+
+ 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, "Collabora Ltd. <contact@collabora.com>" },
+ { SPA_KEY_FACTORY_DESCRIPTION, "Play bluetooth audio with hsp/hfp" },
+ { SPA_KEY_FACTORY_USAGE, SPA_KEY_API_BLUEZ5_TRANSPORT"=<transport>" },
+};
+
+static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items);
+
+const struct spa_handle_factory spa_sco_sink_factory = {
+ SPA_VERSION_HANDLE_FACTORY,
+ SPA_NAME_API_BLUEZ5_SCO_SINK,
+ &info,
+ impl_get_size,
+ impl_init,
+ impl_enum_interface_info,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-22 01:39:25 +0000