/* * Copyright (C) 2016 BlueKitchen GmbH * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * 4. Any redistribution, use, or modification is done solely for * personal benefit and not for any commercial purpose or for * monetary gain. * * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Please inquire about commercial licensing options at * contact@bluekitchen-gmbh.com * */ #include #include #include #include #include #include #include "btstack_config.h" #include "btstack_debug.h" #include "btstack_event.h" #include "btstack_memory.h" #include "btstack_run_loop.h" #include "gap.h" #include "hci.h" #include "hci_cmd.h" #include "hci_dump.h" #include "l2cap.h" #include "stdin_support.h" #include "avdtp_source.h" #include "btstack_sbc.h" #include "sbc_encoder.h" #include "avdtp_util.h" #include "hxcmod.h" #include "mod.h" #define NUM_CHANNELS 2 #define SAMPLE_RATE 44100 #define BYTES_PER_AUDIO_SAMPLE (2*NUM_CHANNELS) #define LATENCY 300 // ms #ifndef M_PI #define M_PI 3.14159265 #endif #define TABLE_SIZE_441HZ 100 typedef struct { // to app uint32_t fill_audio_ring_buffer_timeout_ms; uint32_t time_audio_data_sent; // ms uint32_t acc_num_missed_samples; uint32_t samples_ready; btstack_timer_source_t fill_audio_ring_buffer_timer; btstack_ring_buffer_t sbc_ring_buffer; btstack_sbc_encoder_state_t sbc_encoder_state; int reconfigure; int num_channels; int sampling_frequency; int channel_mode; int block_length; int subbands; int allocation_method; int min_bitpool_value; int max_bitpool_value; } avdtp_stream_endpoint_context_t; typedef struct { int16_t source[TABLE_SIZE_441HZ]; int left_phase; int right_phase; } paTestData; static char * device_name = "A2DP Source BTstack"; // mac 2011: static bd_addr_t remote = {0x04, 0x0C, 0xCE, 0xE4, 0x85, 0xD3}; // pts: static bd_addr_t remote = {0x00, 0x1B, 0xDC, 0x08, 0x0A, 0xA5}; // mac 2013: static bd_addr_t remote = {0x84, 0x38, 0x35, 0x65, 0xd1, 0x15}; // phone 2013: static bd_addr_t remote = {0xD8, 0xBB, 0x2C, 0xDF, 0xF0, 0xF2}; // minijambox: static bd_addr_t remote = {0x00, 0x21, 0x3c, 0xac, 0xf7, 0x38}; // head phones: static bd_addr_t remote = {0x00, 0x18, 0x09, 0x28, 0x50, 0x18}; // bt dongle: -u 02-04-01 // static bd_addr_t remote = {0x00, 0x15, 0x83, 0x5F, 0x9D, 0x46}; static uint16_t avdtp_cid = 0; static uint8_t sdp_avdtp_source_service_buffer[150]; static avdtp_stream_endpoint_t * local_stream_endpoint; static int next_remote_sep_index_to_query = -1; static avdtp_sep_t * active_remote_sep = NULL; static uint8_t media_sbc_codec_configuration[4]; static uint8_t sbc_samples_storage[44100*4]; static avdtp_stream_endpoint_context_t sc; static paTestData sin_data; static int hxcmod_initialized = 0; static modcontext mod_context; static tracker_buffer_state trkbuf; static const char * avdtp_si_name[] = { "ERROR", "AVDTP_SI_DISCOVER", "AVDTP_SI_GET_CAPABILITIES", "AVDTP_SI_SET_CONFIGURATION", "AVDTP_SI_GET_CONFIGURATION", "AVDTP_SI_RECONFIGURE", "AVDTP_SI_OPEN", "AVDTP_SI_START", "AVDTP_SI_CLOSE", "AVDTP_SI_SUSPEND", "AVDTP_SI_ABORT", "AVDTP_SI_SECURITY_CONTROL", "AVDTP_SI_GET_ALL_CAPABILITIES", "AVDTP_SI_DELAY_REPORT" }; typedef enum { STREAM_SINE, STREAM_MOD } stream_data_source_t; typedef enum { AVDTP_APPLICATION_IDLE, AVDTP_APPLICATION_CONNECTED, AVDTP_APPLICATION_W2_DISCOVER_SEPS, AVDTP_APPLICATION_W2_GET_CAPABILITIES, AVDTP_APPLICATION_W2_GET_ALL_CAPABILITIES, AVDTP_APPLICATION_W2_SET_CONFIGURATION, AVDTP_APPLICATION_W4_GET_CONFIGURATION, AVDTP_APPLICATION_W4_SET_CONFIGURATION, AVDTP_APPLICATION_W2_SUSPEND_STREAM_WITH_SEID, AVDTP_APPLICATION_W2_RECONFIGURE_WITH_SEID, AVDTP_APPLICATION_W2_OPEN_STREAM_WITH_SEID, AVDTP_APPLICATION_W4_OPEN_STREAM_WITH_SEID, AVDTP_APPLICATION_W2_START_STREAM_WITH_SEID, AVDTP_APPLICATION_W2_ABORT_STREAM_WITH_SEID, AVDTP_APPLICATION_W2_STOP_STREAM_WITH_SEID, AVDTP_APPLICATION_W2_GET_CONFIGURATION, AVDTP_APPLICATION_STREAMING_OPENED } avdtp_application_state_t; avdtp_application_state_t app_state = AVDTP_APPLICATION_IDLE; stream_data_source_t data_source = STREAM_SINE; static btstack_packet_callback_registration_t hci_event_callback_registration; static const char * avdtp_si2str(uint16_t index){ if (index <= 0 || index > sizeof(avdtp_si_name)) return avdtp_si_name[0]; return avdtp_si_name[index]; } static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ UNUSED(channel); UNUSED(size); bd_addr_t event_addr; uint8_t signal_identifier; uint8_t status; avdtp_sep_t sep; switch (packet_type) { case HCI_EVENT_PACKET: switch (hci_event_packet_get_type(packet)) { case HCI_EVENT_PIN_CODE_REQUEST: // inform about pin code request printf("Pin code request - using '0000'\n"); hci_event_pin_code_request_get_bd_addr(packet, event_addr); hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000"); break; case HCI_EVENT_DISCONNECTION_COMPLETE: // connection closed -> quit test app printf("\n --- avdtp source --- HCI_EVENT_DISCONNECTION_COMPLETE ---\n"); break; case HCI_EVENT_AVDTP_META: switch (packet[2]){ case AVDTP_SUBEVENT_SIGNALING_CONNECTION_ESTABLISHED: avdtp_cid = avdtp_subevent_signaling_connection_established_get_avdtp_cid(packet); status = avdtp_subevent_signaling_connection_established_get_status(packet); if (status != 0){ printf(" --- avdtp source --- AVDTP_SUBEVENT_SIGNALING_CONNECTION could not be established, status %d ---\n", status); break; } active_remote_sep = NULL; next_remote_sep_index_to_query = -1; app_state = AVDTP_APPLICATION_CONNECTED; printf(" --- avdtp source --- AVDTP_SUBEVENT_SIGNALING_CONNECTION_ESTABLISHED, avdtp cid 0x%02x ---\n", avdtp_cid); break; case AVDTP_SUBEVENT_STREAMING_CONNECTION_ESTABLISHED: status = avdtp_subevent_streaming_connection_established_get_status(packet); if (status != 0){ printf(" --- avdtp source --- AVDTP_SUBEVENT_STREAMING_CONNECTION could not be established, status %d ---\n", status); break; } app_state = AVDTP_APPLICATION_STREAMING_OPENED; printf(" --- avdtp source --- AVDTP_SUBEVENT_STREAMING_CONNECTION_ESTABLISHED ---\n"); break; case AVDTP_SUBEVENT_SIGNALING_SEP_FOUND: if (app_state != AVDTP_APPLICATION_W2_DISCOVER_SEPS) return; sep.seid = avdtp_subevent_signaling_sep_found_get_seid(packet); sep.in_use = avdtp_subevent_signaling_sep_found_get_in_use(packet); sep.media_type = avdtp_subevent_signaling_sep_found_get_media_type(packet); sep.type = avdtp_subevent_signaling_sep_found_get_sep_type(packet); printf(" --- avdtp source --- Found sep: seid %u, in_use %d, media type %d, sep type %d (1-SNK)\n", sep.seid, sep.in_use, sep.media_type, sep.type); break; case AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CAPABILITY:{ avdtp_initialize_sbc_configuration_storage(local_stream_endpoint, media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration), packet, size); active_remote_sep = avdtp_source_remote_sep(avdtp_cid, next_remote_sep_index_to_query); app_state = AVDTP_APPLICATION_W2_SET_CONFIGURATION; break; } case AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CAPABILITY: printf(" --- avdtp source --- received non SBC codec. not implemented\n"); break; case AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ sc.sampling_frequency = avdtp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); sc.block_length = avdtp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); sc.subbands = avdtp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); switch (avdtp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet)){ case AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS: sc.allocation_method = SBC_LOUDNESS; break; case AVDTP_SBC_ALLOCATION_METHOD_SNR: sc.allocation_method = SBC_SNR; break; } sc.max_bitpool_value = avdtp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); // TODO: deal with reconfigure: avdtp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); break; } case AVDTP_SUBEVENT_SIGNALING_ACCEPT: signal_identifier = avdtp_subevent_signaling_accept_get_signal_identifier(packet); status = avdtp_subevent_signaling_accept_get_status(packet); printf(" --- avdtp source --- Accepted %d %s, app state %d\n", signal_identifier, avdtp_si2str(signal_identifier), app_state); switch (app_state){ case AVDTP_APPLICATION_W2_DISCOVER_SEPS: app_state = AVDTP_APPLICATION_W2_GET_ALL_CAPABILITIES; next_remote_sep_index_to_query = 0; printf(" --- avdtp source --- Query get caps for seid %d\n", avdtp_source_remote_sep(avdtp_cid, next_remote_sep_index_to_query)->seid); avdtp_source_get_capabilities(avdtp_cid, avdtp_source_remote_sep(avdtp_cid, next_remote_sep_index_to_query)->seid); break; case AVDTP_APPLICATION_W2_GET_CAPABILITIES: case AVDTP_APPLICATION_W2_GET_ALL_CAPABILITIES: if (next_remote_sep_index_to_query < avdtp_source_remote_seps_num(avdtp_cid) - 1){ next_remote_sep_index_to_query++; printf(" --- avdtp source --- Query get caps for seid %d\n", avdtp_source_remote_sep(avdtp_cid, next_remote_sep_index_to_query)->seid); avdtp_source_get_capabilities(avdtp_cid, avdtp_source_remote_sep(avdtp_cid, next_remote_sep_index_to_query)->seid); } else { printf(" --- avdtp source --- Cannot query get caps, index %d\n", next_remote_sep_index_to_query); app_state = AVDTP_APPLICATION_IDLE; } break; case AVDTP_APPLICATION_W2_SET_CONFIGURATION: app_state = AVDTP_APPLICATION_W2_GET_CONFIGURATION; avdtp_source_set_configuration(avdtp_cid, local_stream_endpoint->sep.seid, active_remote_sep->seid, local_stream_endpoint->remote_configuration_bitmap, local_stream_endpoint->remote_configuration); break; case AVDTP_APPLICATION_W2_GET_CONFIGURATION: app_state = AVDTP_APPLICATION_W2_OPEN_STREAM_WITH_SEID; avdtp_source_get_configuration(avdtp_cid, active_remote_sep->seid); break; case AVDTP_APPLICATION_W2_OPEN_STREAM_WITH_SEID: app_state = AVDTP_APPLICATION_W4_OPEN_STREAM_WITH_SEID; btstack_sbc_encoder_init(&sc.sbc_encoder_state, SBC_MODE_STANDARD, sc.block_length, sc.subbands, sc.allocation_method, sc.sampling_frequency, sc.max_bitpool_value); avdtp_source_open_stream(avdtp_cid, local_stream_endpoint->sep.seid, active_remote_sep->seid); break; case AVDTP_APPLICATION_STREAMING_OPENED: switch (signal_identifier){ case AVDTP_SI_START: break; case AVDTP_SI_CLOSE: break; case AVDTP_SI_SUSPEND: break; case AVDTP_SI_ABORT: break; default: break; } break; default: app_state = AVDTP_APPLICATION_IDLE; break; } break; case AVDTP_SUBEVENT_SIGNALING_REJECT: app_state = AVDTP_APPLICATION_IDLE; signal_identifier = avdtp_subevent_signaling_reject_get_signal_identifier(packet); printf(" --- avdtp source --- Rejected %s\n", avdtp_si2str(signal_identifier)); break; case AVDTP_SUBEVENT_SIGNALING_GENERAL_REJECT: app_state = AVDTP_APPLICATION_IDLE; signal_identifier = avdtp_subevent_signaling_general_reject_get_signal_identifier(packet); printf(" --- avdtp source --- Rejected %s\n", avdtp_si2str(signal_identifier)); break; case AVDTP_SUBEVENT_STREAMING_CAN_SEND_MEDIA_PACKET_NOW: { avdtp_source_stream_send_media_payload(local_stream_endpoint->l2cap_media_cid, &sc.sbc_ring_buffer, 0); if (btstack_ring_buffer_bytes_available(&sc.sbc_ring_buffer)){ avdtp_source_stream_endpoint_request_can_send_now(local_stream_endpoint); } break; } default: app_state = AVDTP_APPLICATION_IDLE; printf(" --- avdtp source --- not implemented\n"); break; } break; default: break; } break; default: // other packet type break; } } static void show_usage(void){ bd_addr_t iut_address; gap_local_bd_addr(iut_address); printf("\n--- Bluetooth AVDTP SOURCE Test Console %s ---\n", bd_addr_to_str(iut_address)); printf("c - create connection to addr %s\n", bd_addr_to_str(remote)); printf("C - disconnect\n"); printf("d - discover stream endpoints\n"); if (!active_remote_sep){ printf("Ctrl-c - exit\n"); printf("---\n"); return; } printf("m - start stream with %d\n", active_remote_sep->seid); printf("x - start streaming sine\n"); if (hxcmod_initialized){ printf("z - start streaming '%s'\n", mod_name); } printf("X - stop streaming\n"); printf("A - abort stream with %d\n", active_remote_sep->seid); printf("S - stop stream with %d\n", active_remote_sep->seid); printf("P - suspend stream with %d\n", active_remote_sep->seid); printf("Ctrl-c - exit\n"); printf("---\n"); } static uint8_t media_sbc_codec_capabilities[] = { 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 2, 53 }; static void produce_sine_audio(int16_t * pcm_buffer, void *user_data, int num_samples_to_write){ paTestData *data = (paTestData*)user_data; int count; for (count = 0; count < num_samples_to_write ; count++){ pcm_buffer[count * 2] = data->source[data->left_phase]; pcm_buffer[count * 2 + 1] = data->source[data->right_phase]; data->left_phase += 1; if (data->left_phase >= TABLE_SIZE_441HZ){ data->left_phase -= TABLE_SIZE_441HZ; } data->right_phase += 1; if (data->right_phase >= TABLE_SIZE_441HZ){ data->right_phase -= TABLE_SIZE_441HZ; } } } static void produce_mod_audio(int16_t * pcm_buffer, int num_samples_to_write){ hxcmod_fillbuffer(&mod_context, (unsigned short *) &pcm_buffer[0], num_samples_to_write, &trkbuf); } static void produce_audio(int16_t * pcm_buffer, int num_samples){ switch (data_source){ case STREAM_SINE: produce_sine_audio(pcm_buffer, &sin_data, num_samples); break; case STREAM_MOD: produce_mod_audio(pcm_buffer, num_samples); break; } } static int fill_sbc_ring_buffer(void){ // performe sbc encoding int total_num_bytes_read = 0; int num_audio_samples_per_sbc_buffer = btstack_sbc_encoder_num_audio_frames(); // int audio_bytes_to_read = num_audio_samples_per_sbc_buffer * BYTES_PER_AUDIO_SAMPLE; while (sc.samples_ready >= num_audio_samples_per_sbc_buffer && btstack_ring_buffer_bytes_free(&sc.sbc_ring_buffer) >= btstack_sbc_encoder_sbc_buffer_length()){ uint8_t pcm_frame[256*BYTES_PER_AUDIO_SAMPLE]; produce_audio((int16_t *) pcm_frame, num_audio_samples_per_sbc_buffer); btstack_sbc_encoder_process_data((int16_t *) pcm_frame); uint16_t sbc_frame_size = btstack_sbc_encoder_sbc_buffer_length(); uint8_t * sbc_frame = btstack_sbc_encoder_sbc_buffer(); total_num_bytes_read += num_audio_samples_per_sbc_buffer; if (btstack_ring_buffer_bytes_free(&sc.sbc_ring_buffer) >= sbc_frame_size ){ uint8_t size_buffer = sbc_frame_size; btstack_ring_buffer_write(&sc.sbc_ring_buffer, &size_buffer, 1); btstack_ring_buffer_write(&sc.sbc_ring_buffer, sbc_frame, sbc_frame_size); } else { printf("No space in sbc buffer\n"); } } return total_num_bytes_read; } static void avdtp_fill_audio_ring_buffer_timeout_handler(btstack_timer_source_t * timer){ UNUSED(timer); btstack_run_loop_set_timer(&sc.fill_audio_ring_buffer_timer, sc.fill_audio_ring_buffer_timeout_ms); // 2 seconds timeout btstack_run_loop_add_timer(&sc.fill_audio_ring_buffer_timer); uint32_t now = btstack_run_loop_get_time_ms(); uint32_t update_period_ms = sc.fill_audio_ring_buffer_timeout_ms; if (sc.time_audio_data_sent > 0){ update_period_ms = now - sc.time_audio_data_sent; } uint32_t num_samples = (update_period_ms * 44100) / 1000; sc.acc_num_missed_samples += (update_period_ms * 44100) % 1000; if (sc.acc_num_missed_samples >= 1000){ num_samples++; sc.acc_num_missed_samples -= 1000; } sc.time_audio_data_sent = now; sc.samples_ready += num_samples; int total_num_bytes_read = fill_sbc_ring_buffer(); // schedule sending if (total_num_bytes_read != 0){ avdtp_source_stream_endpoint_request_can_send_now(local_stream_endpoint); } } static void avdtp_fill_audio_ring_buffer_timer_start(void){ btstack_run_loop_remove_timer(&sc.fill_audio_ring_buffer_timer); btstack_run_loop_set_timer_handler(&sc.fill_audio_ring_buffer_timer, avdtp_fill_audio_ring_buffer_timeout_handler); // btstack_run_loop_set_timer_context(&sc.fill_audio_ring_buffer_timer, stream_endpoint); btstack_run_loop_set_timer(&sc.fill_audio_ring_buffer_timer, sc.fill_audio_ring_buffer_timeout_ms); // 50 ms timeout btstack_run_loop_add_timer(&sc.fill_audio_ring_buffer_timer); } static void avdtp_fill_audio_ring_buffer_timer_stop(void){ btstack_run_loop_remove_timer(&sc.fill_audio_ring_buffer_timer); } static void avdtp_source_stream_data_start(void){ if (!avdtp_source_stream_endpoint_ready(local_stream_endpoint)) return; avdtp_fill_audio_ring_buffer_timer_start(); } static void avdtp_source_stream_data_stop(){ if (!avdtp_source_stream_endpoint_ready(local_stream_endpoint)) return; avdtp_fill_audio_ring_buffer_timer_stop(); } static void stdin_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type){ UNUSED(ds); UNUSED(callback_type); int cmd = btstack_stdin_read(); switch (cmd){ case 'c': printf("Creating L2CAP Connection to %s, PSM_AVDTP\n", bd_addr_to_str(remote)); avdtp_source_connect(remote); break; case 'C': printf("Disconnect not implemented\n"); avdtp_source_disconnect(avdtp_cid); break; case 'd': app_state = AVDTP_APPLICATION_W2_DISCOVER_SEPS; printf("Discover stream endpoints, cid 0x%02x \n", avdtp_cid); avdtp_source_discover_stream_endpoints(avdtp_cid); break; default: if (!active_remote_sep){ show_usage(); return; } break; } if (!active_remote_sep) return; switch (cmd){ case 'f': app_state = AVDTP_APPLICATION_W2_GET_CONFIGURATION; avdtp_source_get_configuration(avdtp_cid, active_remote_sep->seid); break; case 'm': app_state = AVDTP_APPLICATION_W2_START_STREAM_WITH_SEID; avdtp_source_start_stream(avdtp_cid, local_stream_endpoint->sep.seid, active_remote_sep->seid); break; case 'A': app_state = AVDTP_APPLICATION_W2_ABORT_STREAM_WITH_SEID; avdtp_source_abort_stream(avdtp_cid, local_stream_endpoint->sep.seid, active_remote_sep->seid); break; case 'S': app_state = AVDTP_APPLICATION_W2_STOP_STREAM_WITH_SEID; avdtp_source_stop_stream(avdtp_cid, local_stream_endpoint->sep.seid, active_remote_sep->seid); break; case 'P': app_state = AVDTP_APPLICATION_W2_SUSPEND_STREAM_WITH_SEID; avdtp_source_suspend(avdtp_cid, local_stream_endpoint->sep.seid, active_remote_sep->seid); break; case 'x': printf("Start streaming sine.\n"); data_source = STREAM_SINE; avdtp_source_stream_data_start(); break; case 'z': printf("Start streaming '%s'.\n", mod_name); data_source = STREAM_MOD; avdtp_source_stream_data_start(); break; case 'X': printf("Stop streaming.\n"); avdtp_source_stream_data_stop(); break; case '\n': case '\r': break; default: show_usage(); break; } } int btstack_main(int argc, const char * argv[]); int btstack_main(int argc, const char * argv[]){ UNUSED(argc); (void)argv; /* Register for HCI events */ hci_event_callback_registration.callback = &packet_handler; hci_add_event_handler(&hci_event_callback_registration); l2cap_init(); // Initialize AVDTP Sink avdtp_source_init(); avdtp_source_register_packet_handler(&packet_handler); //#ifndef SMG_BI local_stream_endpoint = avdtp_source_create_stream_endpoint(AVDTP_SOURCE, AVDTP_AUDIO); local_stream_endpoint->sep.seid = 2; avdtp_source_register_media_transport_category(local_stream_endpoint->sep.seid); avdtp_source_register_media_codec_category(local_stream_endpoint->sep.seid, AVDTP_AUDIO, AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities)); //#endif // uint8_t cp_type_lsb, uint8_t cp_type_msb, const uint8_t * cp_type_value, uint8_t cp_type_value_len // avdtp_source_register_content_protection_category(seid, 2, 2, NULL, 0); // Initialize SDP sdp_init(); memset(sdp_avdtp_source_service_buffer, 0, sizeof(sdp_avdtp_source_service_buffer)); a2dp_source_create_sdp_record(sdp_avdtp_source_service_buffer, 0x10002, 1, NULL, NULL); sdp_register_service(sdp_avdtp_source_service_buffer); gap_set_local_name(device_name); gap_discoverable_control(1); gap_set_class_of_device(0x200408); memset(sbc_samples_storage, 0, sizeof(sbc_samples_storage)); btstack_ring_buffer_init(&sc.sbc_ring_buffer, sbc_samples_storage, sizeof(sbc_samples_storage)); sc.fill_audio_ring_buffer_timeout_ms = 50; /* initialise sinusoidal wavetable */ int i; for (i=0; i