/* 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "defs.h" struct props { uint32_t min_latency; uint32_t max_latency; }; #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; int frame_size; unsigned int have_format:1; uint64_t info_all; struct spa_port_info info; struct spa_io_buffers *io; struct spa_param_info params[8]; struct buffer buffers[MAX_BUFFERS]; uint32_t n_buffers; struct spa_list free; struct spa_list ready; unsigned int need_data:1; }; 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; struct spa_param_info params[8]; struct props props; /* Transport */ struct spa_bt_transport *transport; struct spa_hook transport_listener; int sock_fd; /* Port */ struct port port; /* Flags */ unsigned int started:1; unsigned int following:1; /* Sources */ struct spa_source source; struct spa_source flush_source; /* Timer */ int timerfd; struct timespec now; struct spa_io_clock *clock; struct spa_io_position *position; int threshold; /* Times */ uint64_t start_time; /* Counts */ uint64_t sample_count; uint32_t write_mtu; }; #define NAME "sco-sink" #define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) == 0) static const uint32_t default_min_latency = MIN_LATENCY; static const uint32_t default_max_latency = MAX_LATENCY; static void reset_props(struct props *props) { props->min_latency = default_min_latency; props->max_latency = default_max_latency; } 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: { struct props *p = &this->props; switch (result.index) { case 0: param = spa_pod_builder_add_object(&b, SPA_TYPE_OBJECT_PropInfo, id, SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_minLatency), SPA_PROP_INFO_name, SPA_POD_String("The minimum latency"), SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(p->min_latency, 1, INT32_MAX)); break; case 1: param = spa_pod_builder_add_object(&b, SPA_TYPE_OBJECT_PropInfo, id, SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_maxLatency), SPA_PROP_INFO_name, SPA_POD_String("The maximum latency"), SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(p->max_latency, 1, INT32_MAX)); break; default: return 0; } break; } case SPA_PARAM_Props: { struct props *p = &this->props; switch (result.index) { case 0: param = spa_pod_builder_add_object(&b, SPA_TYPE_OBJECT_Props, id, SPA_PROP_minLatency, SPA_POD_Int(p->min_latency), SPA_PROP_maxLatency, SPA_POD_Int(p->max_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 void set_timeout(struct impl *this, time_t sec, long nsec) { struct itimerspec ts; ts.it_value.tv_sec = sec; ts.it_value.tv_nsec = nsec; ts.it_interval.tv_sec = 0; ts.it_interval.tv_nsec = 0; spa_system_timerfd_settime(this->data_system, this->timerfd, 0, &ts, NULL); this->source.mask = SPA_IO_IN; spa_loop_update_source(this->data_loop, &this->source); } static void reset_timeout(struct impl *this) { set_timeout(this, 0, this->following ? 0 : 1); } static void set_next_timeout(struct impl *this, uint64_t now_time) { struct port *port = &this->port; /* Set the next timeout if not following, otherwise reset values */ if (!this->following) { /* Get the elapsed time */ uint64_t elapsed_time = 0; if (now_time > this->start_time) elapsed_time = now_time - this->start_time; /* Get the elapsed samples */ const uint64_t elapsed_samples = elapsed_time * port->current_format.info.raw.rate / SPA_NSEC_PER_SEC; /* Get the queued samples (processed - elapsed) */ const uint64_t queued_samples = (this->sample_count - elapsed_samples); /* Get the queued time */ const uint64_t queued_time = (queued_samples * SPA_NSEC_PER_SEC) / port->current_format.info.raw.rate; /* Set the next timeout */ set_timeout (this, queued_time / SPA_NSEC_PER_SEC, queued_time % SPA_NSEC_PER_SEC); } else { this->start_time = now_time; this->sample_count = 0; } } 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; reset_timeout(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(object != NULL, -EINVAL); switch (id) { case SPA_IO_Clock: this->clock = data; 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, "sco-sink %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 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: { struct props *p = &this->props; if (param == NULL) { reset_props(p); return 0; } spa_pod_parse_object(param, SPA_TYPE_OBJECT_Props, NULL, SPA_PROP_minLatency, SPA_POD_OPT_Int(&p->min_latency), SPA_PROP_maxLatency, SPA_POD_OPT_Int(&p->max_latency)); break; } default: return -ENOENT; } return 0; } static bool write_data(struct impl *this, const uint8_t *data, uint32_t size, uint32_t *total_written) { uint32_t local_total_written = 0; const uint32_t mtu_size = this->write_mtu; while (local_total_written <= (size - mtu_size)) { const int bytes_written = write(this->sock_fd, data, mtu_size); if (bytes_written < 0) { spa_log_warn(this->log, "error writting data: %s", strerror(errno)); return false; } data += bytes_written; local_total_written += bytes_written; } /* TODO: For now we assume the size is always a mutliple of mtu_size */ if (local_total_written != size) spa_log_warn(this->log, "dropping some audio as buffer size is not multiple of mtu"); if (total_written) *total_written = local_total_written; return true; } static int render_buffers(struct impl *this, uint64_t now_time) { struct port *port = &this->port; /* Render the buffer */ while (!spa_list_is_empty(&port->ready)) { uint8_t *src; struct buffer *b; struct spa_data *d; uint32_t offset, size; uint32_t total_written = 0; /* Get the buffer and datas */ b = spa_list_first(&port->ready, struct buffer, link); d = b->buf->datas; /* Get the data, offset and size */ src = d[0].data; offset = d[0].chunk->offset; size = d[0].chunk->size; /* Write data */ if (!write_data(this, src + offset, size, &total_written)) { port->need_data = true; spa_list_remove(&b->link); b->outstanding = true; spa_node_call_reuse_buffer(&this->callbacks, 0, b->id); break; } /* Update the sample count */ this->sample_count += total_written / port->frame_size; /* Remove the buffer and mark it as reusable */ spa_list_remove(&b->link); b->outstanding = true; spa_node_call_reuse_buffer(&this->callbacks, 0, b->id); } /* Set next timeout */ set_next_timeout(this, now_time); return 0; } static void fill_socket(struct impl *this) { struct port *port = &this->port; static const uint8_t zero_buffer[1024 * 4] = { 0, }; uint32_t fill_size = this->write_mtu; uint32_t fills = 0; uint32_t total_written = 0; /* Fill the socket */ while (fills < FILL_FRAMES) { uint32_t written = 0; /* Write the data */ if (!write_data(this, zero_buffer, fill_size, &written)) break; total_written += written; fills++; } /* Update the sample count */ this->sample_count += total_written / port->frame_size; } static void sco_on_flush(struct spa_source *source) { struct impl *this = source->data; uint64_t now_time; spa_log_trace(this->log, NAME" %p: flushing", this); if ((source->rmask & SPA_IO_OUT) == 0) { spa_log_warn(this->log, "error %d", source->rmask); if (this->flush_source.loop) spa_loop_remove_source(this->data_loop, &this->flush_source); this->source.mask = 0; spa_loop_update_source(this->data_loop, &this->source); return; } /* Get the current time */ spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &this->now); now_time = SPA_TIMESPEC_TO_NSEC(&this->now); /* Render buffers */ render_buffers(this, now_time); } static void sco_on_timeout(struct spa_source *source) { struct impl *this = source->data; struct port *port = &this->port; uint64_t exp, now_time; struct spa_io_buffers *io = port->io; /* Read the timerfd */ if (this->started && spa_system_timerfd_read(this->data_system, this->timerfd, &exp) < 0) spa_log_warn(this->log, "error reading timerfd: %s", strerror(errno)); /* Get the current time */ spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &this->now); now_time = SPA_TIMESPEC_TO_NSEC(&this->now); /* If this is the first timeout, set the start time and fill the socked */ if (this->start_time == 0) { fill_socket(this); this->start_time = now_time; } /* Notify we need a new buffer if we have processed all of them */ if (spa_list_is_empty(&port->ready) || port->need_data) { io->status = SPA_STATUS_NEED_DATA; spa_node_call_ready(&this->callbacks, SPA_STATUS_NEED_DATA); } /* Render the buffers */ render_buffers(this, now_time); } static int do_start(struct impl *this) { int val; bool do_accept; /* Dont 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); /* Set the following flag */ this->following = is_following(this); /* Do accept if Gateway; otherwise do connect for Head Unit */ do_accept = this->transport->profile & SPA_BT_PROFILE_HEADSET_AUDIO_GATEWAY; /* acquire the socked fd (false -> connect | true -> accept) */ this->sock_fd = spa_bt_transport_acquire(this->transport, do_accept); if (this->sock_fd < 0) return -1; /* Set the write MTU */ this->write_mtu = this->transport->write_mtu; val = FILL_FRAMES * this->transport->write_mtu; if (setsockopt(this->sock_fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof(val)) < 0) spa_log_warn(this->log, "sco-sink %p: SO_SNDBUF %m", this); /* Set the read MTU */ val = FILL_FRAMES * this->transport->read_mtu; if (setsockopt(this->sock_fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof(val)) < 0) spa_log_warn(this->log, "sco-sink %p: SO_RCVBUF %m", this); /* Set the priority */ val = 6; if (setsockopt(this->sock_fd, SOL_SOCKET, SO_PRIORITY, &val, sizeof(val)) < 0) spa_log_warn(this->log, "SO_PRIORITY failed: %m"); /* 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); /* Add the flush callback */ this->flush_source.data = this; this->flush_source.fd = this->sock_fd; this->flush_source.func = sco_on_flush; this->flush_source.mask = 0; this->flush_source.rmask = 0; spa_loop_add_source(this->data_loop, &this->flush_source); /* Reset timeout to start processing */ reset_timeout(this); /* Set the started flag */ this->started = true; return 0; } 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; if (this->source.loop) spa_loop_remove_source(this->data_loop, &this->source); reset_timeout (this); if (this->flush_source.loop) spa_loop_remove_source(this->data_loop, &this->flush_source); 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->transport) { /* Release the transport */ res = spa_bt_transport_release(this->transport); /* Shutdown and close the socket */ shutdown(this->sock_fd, SHUT_RDWR); close(this->sock_fd); this->sock_fd = -1; } 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: if ((res = do_stop(this)) < 0) return res; break; default: return -ENOTSUP; } return 0; } static const struct spa_dict_item node_info_items[] = { { SPA_KEY_DEVICE_API, "bluez5" }, { SPA_KEY_MEDIA_CLASS, "Audio/Sink" }, { SPA_KEY_NODE_DRIVER, "true" }, }; static void emit_node_info(struct impl *this, bool full) { 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 = 0; } } static void emit_port_info(struct impl *this, struct port *port, bool full) { 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 = 0; } } 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; /* set the info structure */ struct spa_audio_info_raw info = { 0, }; info.format = SPA_AUDIO_FORMAT_S16; info.channels = 1; info.position[0] = SPA_AUDIO_CHANNEL_MONO; /* TODO: For now we only handle HSP profiles which has always CVSD format, * but we eventually need to support HFP that can have both CVSD and MSBC formats */ /* CVSD format has a rate of 8kHz * MSBC format has a rate of 16kHz */ 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, 2, MAX_BUFFERS), SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1), SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int( this->props.min_latency * port->frame_size, this->props.min_latency * port->frame_size, INT32_MAX), SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->frame_size), SPA_PARAM_BUFFERS_align, SPA_POD_Int(16)); 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; 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; port->frame_size = info.info.raw.channels * 2; port->current_format = info; port->have_format = true; this->threshold = this->props.min_latency; } 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[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(node, direction, port_id), -EINVAL); port = &this->port; switch (id) { case SPA_PARAM_Format: res = port_set_format(this, port, flags, param); 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); if (!port->have_format) return -EIO; clear_buffers(this, port); 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, NAME " %p: need mapped memory", this); return -EINVAL; } this->threshold = buffers[i]->datas[0].maxsize / port->frame_size; } 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; 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; uint64_t now_time; spa_return_val_if_fail(this != NULL, -EINVAL); port = &this->port; io = port->io; spa_return_val_if_fail(io != NULL, -EIO); spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &this->now); now_time = SPA_TIMESPEC_TO_NSEC(&this->now); if (!spa_list_is_empty(&port->ready)) render_buffers(this, now_time); 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, NAME " %p: buffer %u in use", this, io->buffer_id); io->status = -EINVAL; return -EINVAL; } spa_log_trace(this->log, NAME " %p: queue buffer %u", this, io->buffer_id); spa_list_append(&port->ready, &b->link); b->outstanding = false; port->need_data = false; this->threshold = SPA_MIN(b->buf->datas[0].chunk->size / port->frame_size, this->props.max_latency); render_buffers(this, now_time); io->status = SPA_STATUS_OK; } 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 void transport_destroy(void *data) { struct impl *this = data; spa_log_debug(this->log, "transport %p destroy", this->transport); this->transport = NULL; } 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 (strcmp(type, SPA_TYPE_INTERFACE_Node) == 0) *interface = &this->node; else return -ENOENT; return 0; } static int impl_clear(struct spa_handle *handle) { struct impl *this = (struct impl *) handle; spa_system_close(this->data_system, this->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); 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[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->info.params = this->params; this->info.n_params = 2; 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[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->ready); 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->sock_fd = -1; this->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. " }, { SPA_KEY_FACTORY_DESCRIPTION, "Play bluetooth audio with hsp/hfp" }, { SPA_KEY_FACTORY_USAGE, SPA_KEY_API_BLUEZ5_TRANSPORT"=" }, }; static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items); 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, };