summaryrefslogtreecommitdiffstats
path: root/spa/plugins/bluez5/media-source.c
diff options
context:
space:
mode:
Diffstat (limited to 'spa/plugins/bluez5/media-source.c')
-rw-r--r--spa/plugins/bluez5/media-source.c1707
1 files changed, 1707 insertions, 0 deletions
diff --git a/spa/plugins/bluez5/media-source.c b/spa/plugins/bluez5/media-source.c
new file mode 100644
index 0000000..360f812
--- /dev/null
+++ b/spa/plugins/bluez5/media-source.c
@@ -0,0 +1,1707 @@
+/* Spa Media Source
+ *
+ * Copyright © 2018 Wim Taymans
+ * 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 <time.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <spa/support/plugin.h>
+#include <spa/support/loop.h>
+#include <spa/support/log.h>
+#include <spa/support/system.h>
+#include <spa/utils/list.h>
+#include <spa/utils/keys.h>
+#include <spa/utils/names.h>
+#include <spa/utils/result.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 "defs.h"
+#include "rtp.h"
+#include "media-codecs.h"
+
+static struct spa_log_topic log_topic = SPA_LOG_TOPIC(0, "spa.bluez5.source.media");
+#undef SPA_LOG_TOPIC_DEFAULT
+#define SPA_LOG_TOPIC_DEFAULT &log_topic
+
+#include "decode-buffer.h"
+
+#define DEFAULT_CLOCK_NAME "clock.system.monotonic"
+
+struct props {
+ char clock_name[64];
+};
+
+#define FILL_FRAMES 2
+#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;
+ uint32_t 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 free;
+ struct spa_list ready;
+
+ struct spa_bt_decode_buffer buffer;
+};
+
+struct impl {
+ struct spa_handle handle;
+ struct spa_node node;
+
+ struct spa_log *log;
+ struct spa_loop *data_loop;
+ struct spa_system *data_system;
+
+ struct spa_hook_list hooks;
+ struct spa_callbacks callbacks;
+
+ uint32_t quantum_limit;
+
+ uint64_t info_all;
+ struct spa_node_info info;
+#define IDX_PropInfo 0
+#define IDX_Props 1
+#define IDX_NODE_IO 2
+#define N_NODE_PARAMS 3
+ struct spa_param_info params[N_NODE_PARAMS];
+ struct props props;
+
+ struct spa_bt_transport *transport;
+ struct spa_hook transport_listener;
+
+ struct port port;
+
+ unsigned int started:1;
+ unsigned int transport_acquired:1;
+ unsigned int following:1;
+ unsigned int matching:1;
+ unsigned int resampling:1;
+
+ unsigned int is_input:1;
+ unsigned int is_duplex:1;
+ unsigned int use_duplex_source:1;
+
+ int fd;
+ struct spa_source source;
+
+ struct spa_source timer_source;
+ int timerfd;
+
+ struct spa_io_clock *clock;
+ struct spa_io_position *position;
+
+ uint64_t current_time;
+ uint64_t next_time;
+
+ const struct media_codec *codec;
+ bool codec_props_changed;
+ void *codec_props;
+ void *codec_data;
+ struct spa_audio_info codec_format;
+
+ uint8_t buffer_read[4096];
+ struct timespec now;
+ uint64_t sample_count;
+
+ int duplex_timerfd;
+ uint64_t duplex_timeout;
+};
+
+#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) == 0)
+
+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, index_offset = 0;
+ bool enum_codec = false;
+
+ 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:
+ enum_codec = true;
+ index_offset = 0;
+ }
+ break;
+ }
+ case SPA_PARAM_Props:
+ {
+ switch (result.index) {
+ default:
+ enum_codec = true;
+ index_offset = 0;
+ }
+ break;
+ }
+ default:
+ return -ENOENT;
+ }
+
+ if (enum_codec) {
+ int res;
+ if (this->codec->enum_props == NULL || this->codec_props == NULL ||
+ this->transport == NULL)
+ return 0;
+ else if ((res = this->codec->enum_props(this->codec_props,
+ this->transport->device->settings,
+ id, result.index - index_offset,
+ &b, &param)) != 1)
+ return res;
+ }
+
+ 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;
+ struct port *port = &this->port;
+
+ set_timers(this);
+ spa_bt_decode_buffer_recover(&port->buffer);
+ 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 {
+ /* noop */
+ }
+
+ 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:
+ {
+ int res, codec_res = 0;
+ res = apply_props(this, param);
+ if (this->codec_props && this->codec->set_props) {
+ codec_res = this->codec->set_props(this->codec_props, param);
+ if (codec_res > 0)
+ this->codec_props_changed = true;
+ }
+ if (res > 0 || codec_res > 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 reset_buffers(struct port *port)
+{
+ uint32_t i;
+
+ spa_list_init(&port->free);
+ spa_list_init(&port->ready);
+
+ for (i = 0; i < port->n_buffers; i++) {
+ struct buffer *b = &port->buffers[i];
+ spa_list_append(&port->free, &b->link);
+ b->outstanding = false;
+ }
+}
+
+static void recycle_buffer(struct impl *this, struct port *port, uint32_t buffer_id)
+{
+ struct buffer *b = &port->buffers[buffer_id];
+
+ if (b->outstanding) {
+ spa_log_trace(this->log, "%p: recycle buffer %u", this, buffer_id);
+ spa_list_append(&port->free, &b->link);
+ b->outstanding = false;
+ }
+}
+
+static int32_t read_data(struct impl *this) {
+ const ssize_t b_size = sizeof(this->buffer_read);
+ int32_t size_read = 0;
+
+again:
+ /* read data from socket */
+ size_read = recv(this->fd, this->buffer_read, b_size, MSG_DONTWAIT);
+
+ if (size_read == 0)
+ return 0;
+ else if (size_read < 0) {
+ /* retry if interrupted */
+ if (errno == EINTR)
+ goto again;
+
+ /* return socket has no data */
+ if (errno == EAGAIN || errno == EWOULDBLOCK)
+ return 0;
+
+ /* go to 'stop' if socket has an error */
+ spa_log_error(this->log, "read error: %s", strerror(errno));
+ return -errno;
+ }
+
+ return size_read;
+}
+
+static int32_t decode_data(struct impl *this, uint8_t *src, uint32_t src_size,
+ uint8_t *dst, uint32_t dst_size)
+{
+ ssize_t processed;
+ size_t written, avail;
+
+ if ((processed = this->codec->start_decode(this->codec_data,
+ src, src_size, NULL, NULL)) < 0)
+ return processed;
+
+ src += processed;
+ src_size -= processed;
+
+ /* decode */
+ avail = dst_size;
+ while (src_size > 0) {
+ if ((processed = this->codec->decode(this->codec_data,
+ src, src_size, dst, avail, &written)) <= 0)
+ return processed;
+
+ /* update source and dest pointers */
+ spa_return_val_if_fail (avail > written, -ENOSPC);
+ src_size -= processed;
+ src += processed;
+ avail -= written;
+ dst += written;
+ }
+ return dst_size - avail;
+}
+
+static void media_on_ready_read(struct spa_source *source)
+{
+ struct impl *this = source->data;
+ struct port *port = &this->port;
+ struct timespec now;
+ void *buf;
+ int32_t size_read, decoded;
+ uint32_t avail;
+ uint64_t dt;
+
+ /* make sure the source is an input */
+ if ((source->rmask & SPA_IO_IN) == 0) {
+ spa_log_error(this->log, "source is not an input, rmask=%d", source->rmask);
+ goto stop;
+ }
+ if (this->transport == NULL) {
+ spa_log_debug(this->log, "no transport, stop reading");
+ goto stop;
+ }
+
+ spa_log_trace(this->log, "socket poll");
+
+ /* read */
+ size_read = read_data (this);
+ if (size_read == 0)
+ return;
+ if (size_read < 0) {
+ spa_log_error(this->log, "failed to read data: %s", spa_strerror(size_read));
+ goto stop;
+ }
+
+ /* update the current pts */
+ spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &now);
+
+ if (this->codec_props_changed && this->codec_props
+ && this->codec->update_props) {
+ this->codec->update_props(this->codec_data, this->codec_props);
+ this->codec_props_changed = false;
+ }
+
+ /* decode to buffer */
+ buf = spa_bt_decode_buffer_get_write(&port->buffer, &avail);
+ spa_log_trace(this->log, "read socket data size:%d, avail:%d", size_read, avail);
+ decoded = decode_data(this, this->buffer_read, size_read, buf, avail);
+ if (decoded < 0) {
+ spa_log_debug(this->log, "failed to decode data: %d", decoded);
+ return;
+ }
+ if (decoded == 0) {
+ spa_log_trace(this->log, "no decoded socket data");
+ return;
+ }
+
+ /* discard when not started */
+ if (!this->started)
+ return;
+
+ spa_bt_decode_buffer_write_packet(&port->buffer, decoded);
+
+ dt = SPA_TIMESPEC_TO_NSEC(&this->now);
+ this->now = now;
+ dt = SPA_TIMESPEC_TO_NSEC(&this->now) - dt;
+
+ spa_log_trace(this->log, "decoded socket data size:%d frames:%d dt:%d dms",
+ (int)decoded, (int)decoded/port->frame_size,
+ (int)(dt / 100000));
+
+ return;
+
+stop:
+ if (this->source.loop)
+ spa_loop_remove_source(this->data_loop, &this->source);
+}
+
+static int set_duplex_timeout(struct impl *this, uint64_t timeout)
+{
+ struct itimerspec ts;
+ ts.it_value.tv_sec = timeout / SPA_NSEC_PER_SEC;
+ ts.it_value.tv_nsec = timeout % 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->duplex_timerfd, 0, &ts, NULL);
+}
+
+static void media_on_duplex_timeout(struct spa_source *source)
+{
+ struct impl *this = source->data;
+ uint64_t exp;
+ int res;
+
+ if ((res = spa_system_timerfd_read(this->data_system, this->duplex_timerfd, &exp)) < 0) {
+ if (res != -EAGAIN)
+ spa_log_warn(this->log, "error reading timerfd: %s", spa_strerror(res));
+ return;
+ }
+
+ set_duplex_timeout(this, this->duplex_timeout);
+
+ media_on_ready_read(source);
+}
+
+static int setup_matching(struct impl *this)
+{
+ struct port *port = &this->port;
+
+ if (this->position && port->rate_match) {
+ port->rate_match->rate = 1 / port->buffer.corr;
+
+ this->matching = this->following;
+ this->resampling = this->matching ||
+ (port->current_format.info.raw.rate != this->position->clock.rate.denom);
+ } else {
+ this->matching = false;
+ this->resampling = false;
+ }
+
+ if (port->rate_match)
+ SPA_FLAG_UPDATE(port->rate_match->flags, SPA_IO_RATE_MATCH_FLAG_ACTIVE, this->matching);
+
+ return 0;
+}
+
+static int produce_buffer(struct impl *this);
+
+static void media_on_timeout(struct spa_source *source)
+{
+ struct impl *this = source->data;
+ struct port *port = &this->port;
+ uint64_t exp, duration;
+ uint32_t rate;
+ 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_trace(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;
+ }
+
+ setup_matching(this);
+
+ this->next_time = now_time + duration * SPA_NSEC_PER_SEC / port->buffer.corr / rate;
+
+ if (SPA_LIKELY(this->clock)) {
+ this->clock->nsec = now_time;
+ this->clock->position += duration;
+ this->clock->duration = duration;
+ this->clock->rate_diff = port->buffer.corr;
+ this->clock->next_nsec = this->next_time;
+ }
+
+ if (port->io) {
+ int status = produce_buffer(this);
+ spa_log_trace(this->log, "%p: io:%d status:%d", this, port->io->status, status);
+ }
+
+ spa_node_call_ready(&this->callbacks, SPA_STATUS_HAVE_DATA);
+
+ set_timeout(this, this->next_time);
+}
+
+static int transport_start(struct impl *this)
+{
+ int res, val;
+ struct port *port = &this->port;
+ uint32_t flags;
+
+ if (this->transport_acquired)
+ return 0;
+
+ spa_log_debug(this->log, "%p: transport %p acquire", this,
+ this->transport);
+ if ((res = spa_bt_transport_acquire(this->transport, false)) < 0)
+ return res;
+
+ this->transport_acquired = true;
+
+ flags = this->is_duplex ? 0 : MEDIA_CODEC_FLAG_SINK;
+
+ this->codec_data = this->codec->init(this->codec,
+ flags,
+ this->transport->configuration,
+ this->transport->configuration_len,
+ &port->current_format,
+ this->codec_props,
+ this->transport->read_mtu);
+ if (this->codec_data == NULL)
+ return -EIO;
+
+ spa_log_info(this->log, "%p: using %s codec %s", this,
+ this->codec->bap ? "BAP" : "A2DP", this->codec->description);
+
+ val = fcntl(this->transport->fd, F_GETFL);
+ if (fcntl(this->transport->fd, F_SETFL, val | O_NONBLOCK) < 0)
+ spa_log_warn(this->log, "%p: fcntl %u %m", this, val | O_NONBLOCK);
+
+ val = FILL_FRAMES * this->transport->write_mtu;
+ if (setsockopt(this->transport->fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof(val)) < 0)
+ spa_log_warn(this->log, "%p: SO_SNDBUF %m", this);
+
+ val = FILL_FRAMES * this->transport->read_mtu;
+ if (setsockopt(this->transport->fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof(val)) < 0)
+ spa_log_warn(this->log, "%p: SO_RCVBUF %m", this);
+
+ val = 6;
+ if (setsockopt(this->transport->fd, SOL_SOCKET, SO_PRIORITY, &val, sizeof(val)) < 0)
+ spa_log_warn(this->log, "SO_PRIORITY failed: %m");
+
+ reset_buffers(port);
+
+ spa_bt_decode_buffer_clear(&port->buffer);
+ if ((res = spa_bt_decode_buffer_init(&port->buffer, this->log,
+ port->frame_size, port->current_format.info.raw.rate,
+ this->quantum_limit, this->quantum_limit)) < 0)
+ return res;
+
+ this->fd = this->transport->fd;
+
+ this->source.data = this;
+
+ if (!this->use_duplex_source) {
+ this->source.fd = this->transport->fd;
+ this->source.func = media_on_ready_read;
+ this->source.mask = SPA_IO_IN;
+ this->source.rmask = 0;
+ spa_loop_add_source(this->data_loop, &this->source);
+ } else {
+ /*
+ * XXX: For an unknown reason (on Linux 5.13.10), the socket when working with
+ * XXX: "duplex" stream sometimes stops waking up from the poll, even though
+ * XXX: you can recv() from the socket with no problem.
+ * XXX:
+ * XXX: The reason for this should be found and fixed.
+ * XXX: To work around this, for now we just do the stupid thing and poll
+ * XXX: on a timer, chosen so that it's fast enough for the aptX-LL codec
+ * XXX: we currently support (which sends mSBC data), and also for Opus
+ * XXX: forward stream.
+ */
+ this->source.fd = this->duplex_timerfd;
+ this->source.func = media_on_duplex_timeout;
+ this->source.mask = SPA_IO_IN;
+ this->source.rmask = 0;
+ spa_loop_add_source(this->data_loop, &this->source);
+
+ this->duplex_timeout = SPA_NSEC_PER_MSEC * 25/10;
+ set_duplex_timeout(this, this->duplex_timeout);
+ }
+
+ this->timer_source.data = this;
+ this->timer_source.fd = this->timerfd;
+ this->timer_source.func = media_on_timeout;
+ this->timer_source.mask = SPA_IO_IN;
+ this->timer_source.rmask = 0;
+ spa_loop_add_source(this->data_loop, &this->timer_source);
+
+ this->sample_count = 0;
+
+ setup_matching(this);
+
+ set_timers(this);
+
+ return 0;
+}
+
+static int do_start(struct impl *this)
+{
+ int res = 0;
+
+ if (this->started)
+ return 0;
+
+ spa_return_val_if_fail(this->transport != NULL, -EIO);
+
+ this->following = is_following(this);
+
+ spa_log_debug(this->log, "%p: start state:%d following:%d",
+ this, this->transport->state, this->following);
+
+ if (this->transport->state >= SPA_BT_TRANSPORT_STATE_PENDING ||
+ this->is_duplex || this->codec->bap)
+ res = transport_start(this);
+
+ this->started = true;
+
+ return res;
+}
+
+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;
+
+ spa_log_debug(this->log, "%p: remove source", this);
+
+ set_duplex_timeout(this, 0);
+
+ if (this->source.loop)
+ spa_loop_remove_source(this->data_loop, &this->source);
+
+ if (this->timer_source.loop)
+ spa_loop_remove_source(this->data_loop, &this->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->timerfd, 0, &ts, NULL);
+
+ return 0;
+}
+
+static int transport_stop(struct impl *this)
+{
+ struct port *port = &this->port;
+ int res;
+
+ spa_log_debug(this->log, "%p: transport stop", this);
+
+ spa_loop_invoke(this->data_loop, do_remove_source, 0, NULL, 0, true, this);
+
+ if (this->transport && this->transport_acquired)
+ res = spa_bt_transport_release(this->transport);
+ else
+ res = 0;
+
+ this->transport_acquired = false;
+
+ if (this->codec_data)
+ this->codec->deinit(this->codec_data);
+ this->codec_data = NULL;
+
+ spa_bt_decode_buffer_clear(&port->buffer);
+
+ return res;
+}
+
+static int do_stop(struct impl *this)
+{
+ int res;
+
+ if (!this->started)
+ return 0;
+
+ spa_log_debug(this->log, "%p: stop", this);
+
+ res = transport_stop(this);
+
+ this->started = false;
+
+ 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_Suspend:
+ case SPA_NODE_COMMAND_Pause:
+ if ((res = do_stop(this)) < 0)
+ return res;
+ 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;
+
+ struct spa_dict_item node_info_items[] = {
+ { SPA_KEY_DEVICE_API, "bluez5" },
+ { SPA_KEY_MEDIA_CLASS, this->is_input ? "Audio/Source" : "Stream/Output/Audio" },
+ { SPA_KEY_NODE_LATENCY, this->is_input ? "" : "512/48000" },
+ { "media.name", ((this->transport && this->transport->device->name) ?
+ this->transport->device->name : this->codec->bap ? "BAP" : "A2DP") },
+ { SPA_KEY_NODE_DRIVER, this->is_input ? "true" : "false" },
+ };
+
+ if (full)
+ this->info.change_mask = this->info_all;
+ if (this->info.change_mask) {
+ this->info.props = &SPA_DICT_INIT_ARRAY(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_OUTPUT, 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;
+ 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 = &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->codec == NULL)
+ return -EIO;
+ if (this->transport == NULL)
+ return -EIO;
+
+ if ((res = this->codec->enum_config(this->codec,
+ this->is_duplex ? 0 : MEDIA_CODEC_FLAG_SINK,
+ this->transport->configuration,
+ this->transport->configuration_len,
+ id, result.index, &b, &param)) != 1)
+ return res;
+ 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->free);
+ 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.rate == 0 ||
+ info.info.raw.channels == 0 ||
+ info.info.raw.channels > SPA_AUDIO_MAX_CHANNELS)
+ return -EINVAL;
+
+ port->frame_size = info.info.raw.channels;
+
+ switch (info.info.raw.format) {
+ case SPA_AUDIO_FORMAT_S16:
+ port->frame_size *= 2;
+ break;
+ case SPA_AUDIO_FORMAT_S24:
+ port->frame_size *= 3;
+ break;
+ case SPA_AUDIO_FORMAT_S24_32:
+ case SPA_AUDIO_FORMAT_S32:
+ case SPA_AUDIO_FORMAT_F32:
+ port->frame_size *= 4;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ 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];
+ struct spa_data *d = buffers[i]->datas;
+
+ b->buf = buffers[i];
+ b->id = i;
+
+ b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h));
+
+ if (d[0].data == NULL) {
+ spa_log_error(this->log, "%p: need mapped memory", this);
+ return -EINVAL;
+ }
+ spa_list_append(&port->free, &b->link);
+ b->outstanding = false;
+ }
+ 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)
+{
+ struct impl *this = object;
+ struct port *port;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ spa_return_val_if_fail(port_id == 0, -EINVAL);
+ port = &this->port;
+
+ if (port->n_buffers == 0)
+ return -EIO;
+
+ if (buffer_id >= port->n_buffers)
+ return -EINVAL;
+
+ recycle_buffer(this, port, buffer_id);
+
+ return 0;
+}
+
+static uint32_t get_samples(struct impl *this, uint32_t *duration)
+{
+ struct port *port = &this->port;
+ uint32_t samples;
+
+ if (SPA_LIKELY(port->rate_match) && this->resampling) {
+ samples = port->rate_match->size;
+ } else {
+ if (SPA_LIKELY(this->position))
+ samples = this->position->clock.duration * port->current_format.info.raw.rate
+ / this->position->clock.rate.denom;
+ else
+ samples = 1024;
+ }
+
+ if (SPA_LIKELY(this->position))
+ *duration = this->position->clock.duration * port->current_format.info.raw.rate
+ / this->position->clock.rate.denom;
+ else if (SPA_LIKELY(this->clock))
+ *duration = this->clock->duration * port->current_format.info.raw.rate
+ / this->clock->rate.denom;
+ else
+ *duration = 1024 * port->current_format.info.raw.rate / 48000;
+
+ return samples;
+}
+
+static void process_buffering(struct impl *this)
+{
+ struct port *port = &this->port;
+ uint32_t duration;
+ const uint32_t samples = get_samples(this, &duration);
+ uint32_t avail;
+ void *buf;
+
+ spa_bt_decode_buffer_process(&port->buffer, samples, duration);
+
+ setup_matching(this);
+
+ buf = spa_bt_decode_buffer_get_read(&port->buffer, &avail);
+
+ /* copy data to buffers */
+ if (!spa_list_is_empty(&port->free) && avail > 0) {
+ struct buffer *buffer;
+ struct spa_data *datas;
+ uint32_t data_size;
+
+ data_size = samples * port->frame_size;
+
+ avail = SPA_MIN(avail, data_size);
+
+ spa_bt_decode_buffer_read(&port->buffer, avail);
+
+ buffer = spa_list_first(&port->free, struct buffer, link);
+ spa_list_remove(&buffer->link);
+
+ spa_log_trace(this->log, "dequeue %d", buffer->id);
+
+ if (buffer->h) {
+ buffer->h->seq = this->sample_count;
+ buffer->h->pts = SPA_TIMESPEC_TO_NSEC(&this->now);
+ buffer->h->dts_offset = 0;
+ }
+
+ datas = buffer->buf->datas;
+
+ spa_assert(datas[0].maxsize >= data_size);
+
+ datas[0].chunk->offset = 0;
+ datas[0].chunk->size = avail;
+ datas[0].chunk->stride = port->frame_size;
+
+ memcpy(datas[0].data, buf, avail);
+
+ this->sample_count += avail / port->frame_size;
+
+ /* ready buffer if full */
+ spa_log_trace(this->log, "queue %d frames:%d", buffer->id, (int)avail / port->frame_size);
+ spa_list_append(&port->ready, &buffer->link);
+ }
+}
+
+static int produce_buffer(struct impl *this)
+{
+ struct buffer *buffer;
+ struct port *port = &this->port;
+ struct spa_io_buffers *io = port->io;
+
+ if (io == NULL)
+ return -EIO;
+
+ /* Return if we already have a buffer */
+ if (io->status == SPA_STATUS_HAVE_DATA)
+ return SPA_STATUS_HAVE_DATA;
+
+ /* Recycle */
+ if (io->buffer_id < port->n_buffers) {
+ recycle_buffer(this, port, io->buffer_id);
+ io->buffer_id = SPA_ID_INVALID;
+ }
+
+ /* Handle buffering */
+ process_buffering(this);
+
+ /* Return if there are no buffers ready to be processed */
+ if (spa_list_is_empty(&port->ready))
+ return SPA_STATUS_OK;
+
+ /* Get the new buffer from the ready list */
+ buffer = spa_list_first(&port->ready, struct buffer, link);
+ spa_list_remove(&buffer->link);
+ buffer->outstanding = true;
+
+ /* Set the new buffer in IO */
+ io->buffer_id = buffer->id;
+ io->status = SPA_STATUS_HAVE_DATA;
+
+ /* Notify we have a buffer ready to be processed */
+ return SPA_STATUS_HAVE_DATA;
+}
+
+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;
+
+ spa_log_trace(this->log, "%p status:%d", this, io->status);
+
+ /* Return if we already have a buffer */
+ if (io->status == SPA_STATUS_HAVE_DATA)
+ return SPA_STATUS_HAVE_DATA;
+
+ /* Recycle */
+ if (io->buffer_id < port->n_buffers) {
+ recycle_buffer(this, port, io->buffer_id);
+ io->buffer_id = SPA_ID_INVALID;
+ }
+
+ /* Follower produces buffers here, driver in timeout */
+ if (this->following)
+ return produce_buffer(this);
+ else
+ return SPA_STATUS_OK;
+}
+
+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;
+ this->transport_acquired = false;
+ 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;
+ struct port *port = &this->port;
+
+ do_stop(this);
+ if (this->codec_props && this->codec->clear_props)
+ this->codec->clear_props(this->codec_props);
+ if (this->transport)
+ spa_hook_remove(&this->transport_listener);
+ spa_system_close(this->data_system, this->timerfd);
+ if (this->duplex_timerfd >= 0) {
+ spa_system_close(this->data_system, this->duplex_timerfd);
+ this->duplex_timerfd = -1;
+ }
+ spa_bt_decode_buffer_clear(&port->buffer);
+ 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);
+
+ /* set the node info */
+ 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_input_ports = 0;
+ this->info.max_output_ports = 1;
+ 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->params[IDX_NODE_IO] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ);
+ this->info.params = this->params;
+ this->info.n_params = N_NODE_PARAMS;
+
+ /* set the port info */
+ port = &this->port;
+ port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
+ SPA_PORT_CHANGE_MASK_PARAMS;
+ port->info = SPA_PORT_INFO_INIT();
+ port->info.change_mask = SPA_PORT_CHANGE_MASK_FLAGS;
+ port->info.flags = SPA_PORT_FLAG_LIVE |
+ SPA_PORT_FLAG_TERMINAL;
+ 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_OUTPUT);
+ port->latency.min_quantum = 1.0f;
+ port->latency.max_quantum = 1.0f;
+
+ /* Init the buffer lists */
+ spa_list_init(&port->ready);
+ spa_list_init(&port->free);
+
+ this->quantum_limit = 8192;
+
+ if (info != NULL) {
+ if (info && (str = spa_dict_lookup(info, "clock.quantum-limit")))
+ spa_atou32(str, &this->quantum_limit, 0);
+ if ((str = spa_dict_lookup(info, SPA_KEY_API_BLUEZ5_TRANSPORT)) != NULL)
+ sscanf(str, "pointer:%p", &this->transport);
+ if ((str = spa_dict_lookup(info, "bluez5.media-source-role")) != NULL)
+ this->is_input = spa_streq(str, "input");
+ if ((str = spa_dict_lookup(info, "api.bluez5.a2dp-duplex")) != NULL)
+ this->is_duplex = spa_atob(str);
+ }
+
+ if (this->transport == NULL) {
+ spa_log_error(this->log, "a transport is needed");
+ return -EINVAL;
+ }
+ if (this->transport->media_codec == NULL) {
+ spa_log_error(this->log, "a transport codec is needed");
+ return -EINVAL;
+ }
+ this->codec = this->transport->media_codec;
+
+ if (this->is_duplex) {
+ if (!this->codec->duplex_codec) {
+ spa_log_error(this->log, "transport codec doesn't support duplex");
+ return -EINVAL;
+ }
+ this->codec = this->codec->duplex_codec;
+ this->is_input = true;
+ }
+ this->use_duplex_source = this->is_duplex || (this->codec->duplex_codec != NULL);
+
+ if (this->codec->bap)
+ this->is_input = this->transport->bap_initiator;
+
+ if (this->codec->init_props != NULL)
+ this->codec_props = this->codec->init_props(this->codec,
+ this->is_duplex ? 0 : MEDIA_CODEC_FLAG_SINK,
+ this->transport->device->settings);
+
+ 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);
+
+ if (this->use_duplex_source) {
+ this->duplex_timerfd = spa_system_timerfd_create(this->data_system,
+ CLOCK_MONOTONIC, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
+ } else {
+ this->duplex_timerfd = -1;
+ }
+
+ 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, "Capture bluetooth audio with media" },
+ { 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_media_source_factory = {
+ SPA_VERSION_HANDLE_FACTORY,
+ SPA_NAME_API_BLUEZ5_MEDIA_SOURCE,
+ &info,
+ impl_get_size,
+ impl_init,
+ impl_enum_interface_info,
+};
+
+/* Retained for backward compatibility */
+const struct spa_handle_factory spa_a2dp_source_factory = {
+ SPA_VERSION_HANDLE_FACTORY,
+ SPA_NAME_API_BLUEZ5_A2DP_SOURCE,
+ &info,
+ impl_get_size,
+ impl_init,
+ impl_enum_interface_info,
+};