1 /* 2 * Copyright (C) 2016 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define BTSTACK_FILE__ "a2dp_sink_demo.c" 39 40 /* 41 * a2dp_sink_demo.c 42 */ 43 44 // ***************************************************************************** 45 /* EXAMPLE_START(a2dp_sink_demo): Receive audio stream and control its playback. 46 * 47 * @text This A2DP Sink example demonstrates how to use the A2DP Sink service to 48 * receive an audio data stream from a remote A2DP Source device. In addition, 49 * the AVRCP Controller is used to get information on currently played media, 50 * such are title, artist and album, as well as to control the playback, 51 * i.e. to play, stop, repeat, etc. If HAVE_BTSTACK_STDIN is set, press SPACE on 52 * the console to show the available AVDTP and AVRCP commands. 53 * 54 * @text To test with a remote device, e.g. a mobile phone, 55 * pair from the remote device with the demo, then start playing music on the remote device. 56 * Alternatively, set the device_addr_string to the Bluetooth address of your 57 * remote device in the code, and call connect from the UI. 58 * 59 * @text For more info on BTstack audio, see our blog post 60 * [A2DP Sink and Source on STM32 F4 Discovery Board](http://bluekitchen-gmbh.com/a2dp-sink-and-source-on-stm32-f4-discovery-board/). 61 * 62 */ 63 // ***************************************************************************** 64 65 #include <inttypes.h> 66 #include <stdint.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 71 #include "btstack.h" 72 #include "btstack_resample.h" 73 74 //#define AVRCP_BROWSING_ENABLED 75 76 #ifdef HAVE_BTSTACK_STDIN 77 #include "btstack_stdin.h" 78 #endif 79 80 #include "btstack_ring_buffer.h" 81 82 #ifdef HAVE_POSIX_FILE_IO 83 #include "wav_util.h" 84 #define STORE_TO_SBC_FILE 85 #define STORE_TO_WAV_FILE 86 #endif 87 88 #define NUM_CHANNELS 2 89 #define BYTES_PER_FRAME (2*NUM_CHANNELS) 90 #define MAX_SBC_FRAME_SIZE 120 91 92 // SBC Decoder for WAV file or live playback 93 static btstack_sbc_decoder_state_t state; 94 static btstack_sbc_mode_t mode = SBC_MODE_STANDARD; 95 96 // ring buffer for SBC Frames 97 // below 30: add samples, 30-40: fine, above 40: drop samples 98 #define OPTIMAL_FRAMES_MIN 30 99 #define OPTIMAL_FRAMES_MAX 40 100 #define ADDITIONAL_FRAMES 20 101 static uint8_t sbc_frame_storage[(OPTIMAL_FRAMES_MAX + ADDITIONAL_FRAMES) * MAX_SBC_FRAME_SIZE]; 102 static btstack_ring_buffer_t sbc_frame_ring_buffer; 103 static unsigned int sbc_frame_size; 104 105 // rest buffer for not fully used sbc frames, with additional frames for resampling 106 static uint8_t decoded_audio_storage[(128+16) * BYTES_PER_FRAME]; 107 static btstack_ring_buffer_t decoded_audio_ring_buffer; 108 109 static int audio_stream_started; 110 111 // temp storage of lower-layer request 112 static int16_t * request_buffer; 113 static int request_frames; 114 115 #define STORE_FROM_PLAYBACK 116 117 // WAV File 118 #ifdef STORE_TO_WAV_FILE 119 static uint32_t audio_frame_count = 0; 120 static char * wav_filename = "av2dp_sink_demo.wav"; 121 #endif 122 123 #ifdef STORE_TO_SBC_FILE 124 static FILE * sbc_file; 125 static char * sbc_filename = "av2dp_sink_demo.sbc"; 126 #endif 127 128 typedef struct { 129 int reconfigure; 130 int num_channels; 131 int sampling_frequency; 132 int channel_mode; 133 int block_length; 134 int subbands; 135 int allocation_method; 136 int min_bitpool_value; 137 int max_bitpool_value; 138 int frames_per_buffer; 139 } avdtp_media_codec_configuration_sbc_t; 140 141 static avdtp_media_codec_configuration_sbc_t sbc_configuration; 142 static int volume_percentage = 0; 143 144 static uint8_t events_num = 0; 145 static uint8_t events[] = { 146 // AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED 147 }; 148 149 static uint8_t companies_num = 1; 150 static uint8_t companies[] = { 151 0x00, 0x19, 0x58 //BT SIG registered CompanyID 152 }; 153 154 #ifdef HAVE_BTSTACK_STDIN 155 // pts: 156 static const char * device_addr_string = "6C:72:E7:10:22:EE"; 157 // mac 2013: static const char * device_addr_string = "84:38:35:65:d1:15"; 158 // iPhone 5S: static const char * device_addr_string = "54:E4:3A:26:A2:39"; 159 static bd_addr_t device_addr; 160 #endif 161 162 static btstack_packet_callback_registration_t hci_event_callback_registration; 163 164 static uint8_t sdp_avdtp_sink_service_buffer[150]; 165 static uint8_t sdp_avrcp_target_service_buffer[150]; 166 static uint8_t sdp_avrcp_controller_service_buffer[200]; 167 168 static uint16_t a2dp_cid = 0; 169 static uint8_t a2dp_local_seid = 0; 170 171 static uint16_t avrcp_cid = 0; 172 static uint8_t avrcp_connected = 0; 173 static uint8_t avrcp_subevent_value[100]; 174 175 static uint8_t media_sbc_codec_capabilities[] = { 176 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 177 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 178 2, 53 179 }; 180 181 static uint8_t media_sbc_codec_configuration[] = { 182 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 183 (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 184 2, 53 185 }; 186 187 static int media_initialized = 0; 188 static btstack_resample_t resample_instance; 189 190 /* @section Main Application Setup 191 * 192 * @text The Listing MainConfiguration shows how to setup AD2P Sink and AVRCP services. 193 * Besides calling init() method for each service, you'll also need to register several packet handlers: 194 * - hci_packet_handler - handles legacy pairing, here by using fixed '0000' pin code. 195 * - a2dp_sink_packet_handler - handles events on stream connection status (established, released), the media codec configuration, and, the status of the stream itself (opened, paused, stopped). 196 * - handle_l2cap_media_data_packet - used to receive streaming data. If STORE_TO_WAV_FILE directive (check btstack_config.h) is used, the SBC decoder will be used to decode the SBC data into PCM frames. The resulting PCM frames are then processed in the SBC Decoder callback. 197 * - avrcp_packet_handler - receives connect/disconnect event. 198 * - avrcp_controller_packet_handler - receives answers for sent AVRCP commands. 199 * - avrcp_target_packet_handler - receives AVRCP commands, and registered notifications. 200 * - stdin_process - used to trigger AVRCP commands to the A2DP Source device, such are get now playing info, start, stop, volume control. Requires HAVE_BTSTACK_STDIN. 201 * 202 * @text To announce A2DP Sink and AVRCP services, you need to create corresponding 203 * SDP records and register them with the SDP service. 204 * 205 * @text Note, currently only the SBC codec is supported. 206 * If you want to store the audio data in a file, you'll need to define STORE_TO_WAV_FILE. 207 * If STORE_TO_WAV_FILE directive is defined, the SBC decoder needs to get initialized when a2dp_sink_packet_handler receives event A2DP_SUBEVENT_STREAM_STARTED. 208 * The initialization of the SBC decoder requires a callback that handles PCM data: 209 * - handle_pcm_data - handles PCM audio frames. Here, they are stored a in wav file if STORE_TO_WAV_FILE is defined, and/or played using the audio library. 210 */ 211 212 /* LISTING_START(MainConfiguration): Setup Audio Sink and AVRCP Controller services */ 213 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 214 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size); 215 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size); 216 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 217 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 218 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 219 #ifdef HAVE_BTSTACK_STDIN 220 static void stdin_process(char cmd); 221 #endif 222 223 static int a2dp_and_avrcp_setup(void){ 224 l2cap_init(); 225 // Initialize AVDTP Sink 226 a2dp_sink_init(); 227 a2dp_sink_register_packet_handler(&a2dp_sink_packet_handler); 228 a2dp_sink_register_media_handler(&handle_l2cap_media_data_packet); 229 230 avdtp_stream_endpoint_t * local_stream_endpoint = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO, 231 AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities), 232 media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration)); 233 if (!local_stream_endpoint){ 234 printf("A2DP Sink: not enough memory to create local stream endpoint\n"); 235 return 1; 236 } 237 a2dp_local_seid = avdtp_local_seid(local_stream_endpoint); 238 239 // Initialize AVRCP service. 240 avrcp_init(); 241 avrcp_register_packet_handler(&avrcp_packet_handler); 242 243 // Initialize AVRCP Controller 244 avrcp_controller_init(); 245 avrcp_controller_register_packet_handler(&avrcp_controller_packet_handler); 246 247 // Initialize AVRCP Target 248 avrcp_target_init(); 249 avrcp_target_register_packet_handler(&avrcp_target_packet_handler); 250 251 // Initialize SDP 252 sdp_init(); 253 // setup AVDTP sink 254 memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer)); 255 a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, 1, NULL, NULL); 256 sdp_register_service(sdp_avdtp_sink_service_buffer); 257 258 // setup AVRCP Controller 259 memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); 260 uint16_t controller_supported_features = (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_CATEGORY_PLAYER_OR_RECORDER); 261 #ifdef AVRCP_BROWSING_ENABLED 262 controller_supported_features |= (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_BROWSING); 263 #endif 264 avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10002, controller_supported_features, NULL, NULL); 265 sdp_register_service(sdp_avrcp_controller_service_buffer); 266 267 // setup AVRCP Target 268 memset(sdp_avrcp_target_service_buffer, 0, sizeof(sdp_avrcp_target_service_buffer)); 269 uint16_t target_supported_features = (1 << AVRCP_TARGET_SUPPORTED_FEATURE_CATEGORY_PLAYER_OR_RECORDER); 270 avrcp_target_create_sdp_record(sdp_avrcp_target_service_buffer, 0x10003, target_supported_features, NULL, NULL); 271 sdp_register_service(sdp_avrcp_target_service_buffer); 272 273 gap_set_local_name("A2DP Sink Demo 00:00:00:00:00:00"); 274 gap_discoverable_control(1); 275 gap_set_class_of_device(0x200408); 276 277 /* Register for HCI events */ 278 hci_event_callback_registration.callback = &hci_packet_handler; 279 hci_add_event_handler(&hci_event_callback_registration); 280 281 #ifdef HAVE_POSIX_FILE_IO 282 if (!btstack_audio_sink_get_instance()){ 283 printf("No audio playback.\n"); 284 } else { 285 printf("Audio playback supported.\n"); 286 } 287 #ifdef STORE_TO_WAV_FILE 288 printf("Audio will be stored to \'%s\' file.\n", wav_filename); 289 #endif 290 #endif 291 return 0; 292 } 293 /* LISTING_END */ 294 295 static void playback_handler(int16_t * buffer, uint16_t num_audio_frames){ 296 297 #ifdef STORE_TO_WAV_FILE 298 int wav_samples = num_audio_frames * NUM_CHANNELS; 299 int16_t * wav_buffer = buffer; 300 #endif 301 302 // called from lower-layer but guaranteed to be on main thread 303 if (sbc_frame_size == 0){ 304 memset(buffer, 0, num_audio_frames * BYTES_PER_FRAME); 305 return; 306 } 307 308 // first fill from resampled audio 309 uint32_t bytes_read; 310 btstack_ring_buffer_read(&decoded_audio_ring_buffer, (uint8_t *) buffer, num_audio_frames * BYTES_PER_FRAME, &bytes_read); 311 buffer += bytes_read / NUM_CHANNELS; 312 num_audio_frames -= bytes_read / BYTES_PER_FRAME; 313 314 // then start decoding sbc frames using request_* globals 315 request_buffer = buffer; 316 request_frames = num_audio_frames; 317 while (request_frames && btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) >= sbc_frame_size){ 318 // decode frame 319 uint8_t sbc_frame[MAX_SBC_FRAME_SIZE]; 320 btstack_ring_buffer_read(&sbc_frame_ring_buffer, sbc_frame, sbc_frame_size, &bytes_read); 321 btstack_sbc_decoder_process_data(&state, 0, sbc_frame, sbc_frame_size); 322 } 323 324 #ifdef STORE_TO_WAV_FILE 325 audio_frame_count += num_audio_frames; 326 wav_writer_write_int16(wav_samples, wav_buffer); 327 #endif 328 } 329 330 static void handle_pcm_data(int16_t * data, int num_audio_frames, int num_channels, int sample_rate, void * context){ 331 UNUSED(sample_rate); 332 UNUSED(context); 333 UNUSED(num_channels); // must be stereo == 2 334 335 const btstack_audio_sink_t * audio_sink = btstack_audio_sink_get_instance(); 336 if (!audio_sink){ 337 #ifdef STORE_TO_WAV_FILE 338 audio_frame_count += num_audio_frames; 339 wav_writer_write_int16(num_audio_frames * NUM_CHANNELS, data); 340 #endif 341 return; 342 } 343 344 // resample into request buffer - add some additional space for resampling 345 int16_t output_buffer[(128+16) * NUM_CHANNELS]; // 16 * 8 * 2 346 uint32_t resampled_frames = btstack_resample_block(&resample_instance, data, num_audio_frames, output_buffer); 347 348 // store data in btstack_audio buffer first 349 int frames_to_copy = btstack_min(resampled_frames, request_frames); 350 memcpy(request_buffer, output_buffer, frames_to_copy * BYTES_PER_FRAME); 351 request_frames -= frames_to_copy; 352 request_buffer += frames_to_copy * NUM_CHANNELS; 353 354 // and rest in ring buffer 355 int frames_to_store = resampled_frames - frames_to_copy; 356 if (frames_to_store){ 357 int status = btstack_ring_buffer_write(&decoded_audio_ring_buffer, (uint8_t *)&output_buffer[frames_to_copy * NUM_CHANNELS], frames_to_store * BYTES_PER_FRAME); 358 if (status){ 359 printf("Error storing samples in PCM ring buffer!!!\n"); 360 } 361 } 362 } 363 364 static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ 365 if (media_initialized) return 0; 366 367 btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); 368 369 #ifdef STORE_TO_WAV_FILE 370 wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); 371 #endif 372 373 #ifdef STORE_TO_SBC_FILE 374 sbc_file = fopen(sbc_filename, "wb"); 375 #endif 376 377 btstack_ring_buffer_init(&sbc_frame_ring_buffer, sbc_frame_storage, sizeof(sbc_frame_storage)); 378 btstack_ring_buffer_init(&decoded_audio_ring_buffer, decoded_audio_storage, sizeof(decoded_audio_storage)); 379 btstack_resample_init(&resample_instance, configuration.num_channels); 380 381 // setup audio playback 382 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 383 if (audio){ 384 audio->init(NUM_CHANNELS, configuration.sampling_frequency, &playback_handler); 385 } 386 387 audio_stream_started = 0; 388 media_initialized = 1; 389 return 0; 390 } 391 392 static void media_processing_start(void){ 393 if (!media_initialized) return; 394 // setup audio playback 395 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 396 if (audio){ 397 audio->start_stream(); 398 } 399 audio_stream_started = 1; 400 } 401 402 static void media_processing_pause(void){ 403 if (!media_initialized) return; 404 // stop audio playback 405 audio_stream_started = 0; 406 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 407 if (audio){ 408 audio->stop_stream(); 409 } 410 } 411 412 static void media_processing_close(void){ 413 if (!media_initialized) return; 414 media_initialized = 0; 415 audio_stream_started = 0; 416 sbc_frame_size = 0; 417 418 #ifdef STORE_TO_WAV_FILE 419 wav_writer_close(); 420 uint32_t total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; 421 422 printf("WAV Writer: Decoding done. Processed %u SBC frames:\n - %d good\n - %d bad\n", total_frames_nr, state.good_frames_nr, total_frames_nr - state.good_frames_nr); 423 printf("WAV Writer: Wrote %u audio frames to wav file: %s\n", audio_frame_count, wav_filename); 424 #endif 425 426 #ifdef STORE_TO_SBC_FILE 427 fclose(sbc_file); 428 #endif 429 430 // stop audio playback 431 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 432 if (audio){ 433 printf("close stream\n"); 434 audio->close(); 435 } 436 } 437 438 /* @section Handle Media Data Packet 439 * 440 * @text Media data packets, in this case the audio data, are received through the handle_l2cap_media_data_packet callback. 441 * Currently, only the SBC media codec is supported. Hence, the media data consists of the media packet header and the SBC packet. 442 * The SBC frame will be stored in a ring buffer for later processing (instead of decoding it to PCM right away which would require a much larger buffer) 443 * If the audio stream wasn't started already and there are enough SBC frames in the ring buffer, start playback. 444 */ 445 446 static int read_media_data_header(uint8_t * packet, int size, int * offset, avdtp_media_packet_header_t * media_header); 447 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header); 448 449 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size){ 450 UNUSED(seid); 451 int pos = 0; 452 453 avdtp_media_packet_header_t media_header; 454 if (!read_media_data_header(packet, size, &pos, &media_header)) return; 455 456 avdtp_sbc_codec_header_t sbc_header; 457 if (!read_sbc_header(packet, size, &pos, &sbc_header)) return; 458 459 #ifdef STORE_TO_SBC_FILE 460 fwrite(packet+pos, size-pos, 1, sbc_file); 461 #endif 462 463 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 464 // process data right away if there's no audio implementation active, e.g. on posix systems to store as .wav 465 if (!audio){ 466 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 467 return; 468 } 469 470 // store sbc frame size for buffer management 471 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 472 473 int status = btstack_ring_buffer_write(&sbc_frame_ring_buffer, packet+pos, size-pos); 474 if (status){ 475 printf("Error storing samples in SBC ring buffer!!!\n"); 476 } 477 478 // decide on audio sync drift based on number of sbc frames in queue 479 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) / sbc_frame_size; 480 uint32_t resampling_factor; 481 482 // nomimal factor (fixed-point 2^16) and compensation offset 483 uint32_t nomimal_factor = 0x10000; 484 uint32_t compensation = 0x00100; 485 486 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 487 resampling_factor = nomimal_factor - compensation; // stretch samples 488 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 489 resampling_factor = nomimal_factor; // nothing to do 490 } else { 491 resampling_factor = nomimal_factor + compensation; // compress samples 492 } 493 494 btstack_resample_set_factor(&resample_instance, resampling_factor); 495 496 // start stream if enough frames buffered 497 if (!audio_stream_started && sbc_frames_in_buffer >= OPTIMAL_FRAMES_MIN){ 498 audio_stream_started = 1; 499 // setup audio playback 500 if (audio){ 501 audio->start_stream(); 502 } 503 } 504 } 505 506 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header){ 507 int sbc_header_len = 12; // without crc 508 int pos = *offset; 509 510 if (size - pos < sbc_header_len){ 511 printf("Not enough data to read SBC header, expected %d, received %d\n", sbc_header_len, size-pos); 512 return 0; 513 } 514 515 sbc_header->fragmentation = get_bit16(packet[pos], 7); 516 sbc_header->starting_packet = get_bit16(packet[pos], 6); 517 sbc_header->last_packet = get_bit16(packet[pos], 5); 518 sbc_header->num_frames = packet[pos] & 0x0f; 519 pos++; 520 *offset = pos; 521 return 1; 522 } 523 524 static int read_media_data_header(uint8_t *packet, int size, int *offset, avdtp_media_packet_header_t *media_header){ 525 int media_header_len = 12; // without crc 526 int pos = *offset; 527 528 if (size - pos < media_header_len){ 529 printf("Not enough data to read media packet header, expected %d, received %d\n", media_header_len, size-pos); 530 return 0; 531 } 532 533 media_header->version = packet[pos] & 0x03; 534 media_header->padding = get_bit16(packet[pos],2); 535 media_header->extension = get_bit16(packet[pos],3); 536 media_header->csrc_count = (packet[pos] >> 4) & 0x0F; 537 pos++; 538 539 media_header->marker = get_bit16(packet[pos],0); 540 media_header->payload_type = (packet[pos] >> 1) & 0x7F; 541 pos++; 542 543 media_header->sequence_number = big_endian_read_16(packet, pos); 544 pos+=2; 545 546 media_header->timestamp = big_endian_read_32(packet, pos); 547 pos+=4; 548 549 media_header->synchronization_source = big_endian_read_32(packet, pos); 550 pos+=4; 551 *offset = pos; 552 return 1; 553 } 554 555 static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ 556 printf(" - num_channels: %d\n", configuration.num_channels); 557 printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); 558 printf(" - channel_mode: %d\n", configuration.channel_mode); 559 printf(" - block_length: %d\n", configuration.block_length); 560 printf(" - subbands: %d\n", configuration.subbands); 561 printf(" - allocation_method: %d\n", configuration.allocation_method); 562 printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); 563 printf("\n"); 564 } 565 566 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 567 UNUSED(channel); 568 UNUSED(size); 569 uint16_t local_cid; 570 uint8_t status = 0xFF; 571 bd_addr_t adress; 572 573 if (packet_type != HCI_EVENT_PACKET) return; 574 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 575 switch (packet[2]){ 576 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 577 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 578 status = avrcp_subevent_connection_established_get_status(packet); 579 if (status != ERROR_CODE_SUCCESS){ 580 printf("AVRCP: Connection failed: status 0x%02x\n", status); 581 avrcp_cid = 0; 582 return; 583 } 584 585 avrcp_cid = local_cid; 586 avrcp_connected = 1; 587 avrcp_subevent_connection_established_get_bd_addr(packet, adress); 588 printf("AVRCP: Connected to %s, cid 0x%02x\n", bd_addr_to_str(adress), avrcp_cid); 589 590 // automatically enable notifications 591 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 592 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 593 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 594 return; 595 } 596 597 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 598 printf("AVRCP: Channel released: cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 599 avrcp_cid = 0; 600 avrcp_connected = 0; 601 return; 602 default: 603 break; 604 } 605 } 606 607 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 608 UNUSED(channel); 609 UNUSED(size); 610 uint8_t status = 0xFF; 611 612 if (packet_type != HCI_EVENT_PACKET) return; 613 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 614 615 status = packet[5]; 616 if (!avrcp_cid) return; 617 618 // ignore INTERIM status 619 if (status == AVRCP_CTYPE_RESPONSE_INTERIM){ 620 switch (packet[2]){ 621 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED:{ 622 uint32_t playback_position_ms = avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet); 623 if (playback_position_ms == AVRCP_NO_TRACK_SELECTED_PLAYBACK_POSITION_CHANGED){ 624 printf("AVRCP Controller: playback position changed, no track is selected\n"); 625 } 626 break; 627 } 628 default: 629 break; 630 } 631 return; 632 } 633 634 memset(avrcp_subevent_value, 0, sizeof(avrcp_subevent_value)); 635 switch (packet[2]){ 636 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED: 637 printf("AVRCP Controller: Playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet)); 638 break; 639 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 640 printf("AVRCP Controller: Playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); 641 return; 642 case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: 643 printf("AVRCP Controller: Playing content changed\n"); 644 return; 645 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 646 printf("AVRCP Controller: Track changed\n"); 647 return; 648 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 649 printf("AVRCP Controller: Absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 650 return; 651 case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: 652 printf("AVRCP Controller: Changed\n"); 653 return; 654 case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ 655 uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); 656 uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); 657 printf("AVRCP Controller: %s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 658 break; 659 } 660 case AVRCP_SUBEVENT_NOW_PLAYING_TRACK_INFO: 661 printf("AVRCP Controller: Track: %d\n", avrcp_subevent_now_playing_track_info_get_track(packet)); 662 break; 663 664 case AVRCP_SUBEVENT_NOW_PLAYING_TOTAL_TRACKS_INFO: 665 printf("AVRCP Controller: Total Tracks: %d\n", avrcp_subevent_now_playing_total_tracks_info_get_total_tracks(packet)); 666 break; 667 668 case AVRCP_SUBEVENT_NOW_PLAYING_TITLE_INFO: 669 if (avrcp_subevent_now_playing_title_info_get_value_len(packet) > 0){ 670 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_title_info_get_value(packet), avrcp_subevent_now_playing_title_info_get_value_len(packet)); 671 printf("AVRCP Controller: Title: %s\n", avrcp_subevent_value); 672 } 673 break; 674 675 case AVRCP_SUBEVENT_NOW_PLAYING_ARTIST_INFO: 676 if (avrcp_subevent_now_playing_artist_info_get_value_len(packet) > 0){ 677 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_artist_info_get_value(packet), avrcp_subevent_now_playing_artist_info_get_value_len(packet)); 678 printf("AVRCP Controller: Artist: %s\n", avrcp_subevent_value); 679 } 680 break; 681 682 case AVRCP_SUBEVENT_NOW_PLAYING_ALBUM_INFO: 683 if (avrcp_subevent_now_playing_album_info_get_value_len(packet) > 0){ 684 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_album_info_get_value(packet), avrcp_subevent_now_playing_album_info_get_value_len(packet)); 685 printf("AVRCP Controller: Album: %s\n", avrcp_subevent_value); 686 } 687 break; 688 689 case AVRCP_SUBEVENT_NOW_PLAYING_GENRE_INFO: 690 if (avrcp_subevent_now_playing_genre_info_get_value_len(packet) > 0){ 691 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_genre_info_get_value(packet), avrcp_subevent_now_playing_genre_info_get_value_len(packet)); 692 printf("AVRCP Controller: Genre: %s\n", avrcp_subevent_value); 693 } 694 break; 695 696 case AVRCP_SUBEVENT_PLAY_STATUS: 697 printf("AVRCP Controller: Song length %"PRIu32" ms, Song position %"PRIu32" ms, Play status %s\n", 698 avrcp_subevent_play_status_get_song_length(packet), 699 avrcp_subevent_play_status_get_song_position(packet), 700 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 701 break; 702 703 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 704 printf("AVRCP Controller: %s done\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 705 break; 706 707 case AVRCP_SUBEVENT_OPERATION_START: 708 printf("AVRCP Controller: Start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 709 break; 710 711 default: 712 printf("AVRCP Controller: Event 0x%02x is not parsed\n", packet[2]); 713 break; 714 } 715 } 716 717 718 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 719 UNUSED(channel); 720 UNUSED(size); 721 722 if (packet_type != HCI_EVENT_PACKET) return; 723 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 724 725 int volume; 726 727 switch (packet[2]){ 728 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 729 volume = avrcp_subevent_notification_volume_changed_get_absolute_volume(packet); 730 volume_percentage = volume * 100 / 127; 731 printf("AVRCP Target : Volume set to %d%% (%d)\n", volume_percentage, volume); 732 break; 733 734 case AVRCP_SUBEVENT_EVENT_IDS_QUERY: 735 avrcp_target_supported_events(avrcp_cid, events_num, events, sizeof(events)); 736 break; 737 case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: 738 avrcp_target_supported_companies(avrcp_cid, companies_num, companies, sizeof(companies)); 739 break; 740 case AVRCP_SUBEVENT_OPERATION:{ 741 avrcp_operation_id_t operation_id = avrcp_subevent_operation_get_operation_id(packet); 742 switch (operation_id){ 743 case AVRCP_OPERATION_ID_PLAY: 744 printf("AVRCP Target : PLAY\n"); 745 break; 746 case AVRCP_OPERATION_ID_PAUSE: 747 printf("AVRCP Target : PAUSE\n"); 748 break; 749 case AVRCP_OPERATION_ID_STOP: 750 printf("AVRCP Target : STOP\n"); 751 break; 752 case AVRCP_OPERATION_ID_REWIND: 753 printf("AVRCP Target : REWIND\n"); 754 break; 755 case AVRCP_OPERATION_ID_FAST_FORWARD: 756 printf("AVRCP Target : FAST_FORWARD\n"); 757 break; 758 case AVRCP_OPERATION_ID_FORWARD: 759 printf("AVRCP Target : FORWARD\n"); 760 break; 761 case AVRCP_OPERATION_ID_BACKWARD: 762 printf("AVRCP Target : BACKWARD\n"); 763 break; 764 case AVRCP_OPERATION_ID_SKIP: 765 printf("AVRCP Target : SKIP\n"); 766 break; 767 case AVRCP_OPERATION_ID_MUTE: 768 printf("AVRCP Target : MUTE\n"); 769 break; 770 case AVRCP_OPERATION_ID_CHANNEL_UP: 771 printf("AVRCP Target : CHANNEL_UP\n"); 772 break; 773 case AVRCP_OPERATION_ID_CHANNEL_DOWN: 774 printf("AVRCP Target : CHANNEL_DOWN\n"); 775 break; 776 case AVRCP_OPERATION_ID_SELECT: 777 printf("AVRCP Target : SELECT\n"); 778 break; 779 case AVRCP_OPERATION_ID_UP: 780 printf("AVRCP Target : UP\n"); 781 break; 782 case AVRCP_OPERATION_ID_DOWN: 783 printf("AVRCP Target : DOWN\n"); 784 break; 785 case AVRCP_OPERATION_ID_LEFT: 786 printf("AVRCP Target : LEFT\n"); 787 break; 788 case AVRCP_OPERATION_ID_RIGHT: 789 printf("AVRCP Target : RIGTH\n"); 790 break; 791 case AVRCP_OPERATION_ID_ROOT_MENU: 792 printf("AVRCP Target : ROOT_MENU\n"); 793 break; 794 default: 795 return; 796 } 797 break; 798 } 799 default: 800 printf("AVRCP Target : Event 0x%02x is not parsed\n", packet[2]); 801 break; 802 } 803 } 804 805 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 806 UNUSED(channel); 807 UNUSED(size); 808 if (packet_type != HCI_EVENT_PACKET) return; 809 if (hci_event_packet_get_type(packet) == HCI_EVENT_PIN_CODE_REQUEST) { 810 bd_addr_t address; 811 printf("Pin code request - using '0000'\n"); 812 hci_event_pin_code_request_get_bd_addr(packet, address); 813 gap_pin_code_response(address, "0000"); 814 } 815 } 816 817 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 818 UNUSED(channel); 819 UNUSED(size); 820 bd_addr_t address; 821 uint8_t status; 822 823 if (packet_type != HCI_EVENT_PACKET) return; 824 if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; 825 826 switch (packet[2]){ 827 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 828 printf("A2DP Sink : Received non SBC codec - not implemented\n"); 829 break; 830 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 831 printf("A2DP Sink : Received SBC codec configuration\n"); 832 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 833 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 834 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 835 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 836 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 837 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 838 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 839 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 840 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 841 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 842 dump_sbc_configuration(sbc_configuration); 843 844 if (sbc_configuration.reconfigure){ 845 media_processing_close(); 846 } 847 // prepare media processing 848 media_processing_init(sbc_configuration); 849 break; 850 } 851 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 852 a2dp_subevent_stream_established_get_bd_addr(packet, address); 853 status = a2dp_subevent_stream_established_get_status(packet); 854 855 if (status){ 856 printf("A2DP Sink : Streaming connection failed, status 0x%02x\n", status); 857 break; 858 } 859 860 a2dp_cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 861 memcpy(device_addr, address, 6); 862 printf("A2DP Sink : Streaming connection is established, address %s, cid 0x%02X, local seid %d\n", bd_addr_to_str(address), a2dp_cid, a2dp_local_seid); 863 break; 864 865 case A2DP_SUBEVENT_STREAM_STARTED: 866 printf("A2DP Sink : Stream started\n"); 867 media_processing_start(); 868 break; 869 870 case A2DP_SUBEVENT_STREAM_SUSPENDED: 871 printf("A2DP Sink : Stream paused\n"); 872 media_processing_pause(); 873 break; 874 875 case A2DP_SUBEVENT_STREAM_RELEASED: 876 printf("A2DP Sink : Stream released\n"); 877 media_processing_close(); 878 break; 879 880 case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: 881 printf("A2DP Sink : Signaling connection released\n"); 882 media_processing_close(); 883 break; 884 885 default: 886 printf("A2DP Sink : Not parsed 0x%02x\n", packet[2]); 887 break; 888 } 889 } 890 891 #ifdef HAVE_BTSTACK_STDIN 892 static void show_usage(void){ 893 bd_addr_t iut_address; 894 gap_local_bd_addr(iut_address); 895 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 896 printf("b - AVDTP Sink create connection to addr %s\n", bd_addr_to_str(device_addr)); 897 printf("B - AVDTP Sink disconnect\n"); 898 printf("c - AVRCP create connection to addr %s\n", bd_addr_to_str(device_addr)); 899 printf("C - AVRCP disconnect\n"); 900 901 printf("w - delay report\n"); 902 903 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 904 printf("O - get play status\n"); 905 printf("j - get now playing info\n"); 906 printf("k - play\n"); 907 printf("K - stop\n"); 908 printf("L - pause\n"); 909 printf("u - start fast forward\n"); 910 printf("U - stop fast forward\n"); 911 printf("n - start rewind\n"); 912 printf("N - stop rewind\n"); 913 printf("i - forward\n"); 914 printf("I - backward\n"); 915 printf("M - mute\n"); 916 printf("r - skip\n"); 917 printf("q - query repeat and shuffle mode\n"); 918 printf("v - repeat single track\n"); 919 printf("x - repeat all tracks\n"); 920 printf("X - disable repeat mode\n"); 921 printf("z - shuffle all tracks\n"); 922 printf("Z - disable shuffle mode\n"); 923 924 printf("a/A - register/deregister TRACK_CHANGED\n"); 925 printf("R/P - register/deregister PLAYBACK_POS_CHANGED\n"); 926 927 printf("\n--- Volume Control ---\n"); 928 printf("t - volume up for 10 percent\n"); 929 printf("T - volume down for 10 percent\n"); 930 931 printf("---\n"); 932 } 933 #endif 934 935 #ifdef HAVE_BTSTACK_STDIN 936 static void stdin_process(char cmd){ 937 uint8_t status = ERROR_CODE_SUCCESS; 938 939 switch (cmd){ 940 case 'b': 941 status = a2dp_sink_establish_stream(device_addr, a2dp_local_seid, &a2dp_cid); 942 printf(" - Create AVDTP connection to addr %s, and local seid %d, expected cid 0x%02x.\n", bd_addr_to_str(device_addr), a2dp_local_seid, a2dp_cid); 943 break; 944 case 'B': 945 printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 946 status = avdtp_sink_disconnect(a2dp_cid); 947 break; 948 case 'c': 949 printf(" - Create AVRCP connection to addr %s.\n", bd_addr_to_str(device_addr)); 950 status = avrcp_connect(device_addr, &avrcp_cid); 951 break; 952 case 'C': 953 printf(" - AVRCP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 954 status = avrcp_disconnect(avrcp_cid); 955 break; 956 957 case '\n': 958 case '\r': 959 break; 960 case 'w': 961 printf("Send delay report\n"); 962 avdtp_sink_delay_report(a2dp_cid, a2dp_local_seid, 100); 963 break; 964 // Volume Control 965 case 't': 966 volume_percentage = volume_percentage <= 90 ? volume_percentage + 10 : 100; 967 printf(" - volume up for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 968 status = avrcp_target_volume_changed(avrcp_cid, volume_percentage * 127 / 100); 969 break; 970 case 'T': 971 volume_percentage = volume_percentage >= 10 ? volume_percentage - 10 : 0; 972 printf(" - volume down for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 973 status = avrcp_target_volume_changed(avrcp_cid, volume_percentage * 127 / 100); 974 break; 975 976 case 'O': 977 printf(" - get play status\n"); 978 status = avrcp_controller_get_play_status(avrcp_cid); 979 break; 980 case 'j': 981 printf(" - get now playing info\n"); 982 status = avrcp_controller_get_now_playing_info(avrcp_cid); 983 break; 984 case 'k': 985 printf(" - play\n"); 986 status = avrcp_controller_play(avrcp_cid); 987 break; 988 case 'K': 989 printf(" - stop\n"); 990 status = avrcp_controller_stop(avrcp_cid); 991 break; 992 case 'L': 993 printf(" - pause\n"); 994 status = avrcp_controller_pause(avrcp_cid); 995 break; 996 case 'u': 997 printf(" - start fast forward\n"); 998 status = avrcp_controller_press_and_hold_fast_forward(avrcp_cid); 999 break; 1000 case 'U': 1001 printf(" - stop fast forward\n"); 1002 status = avrcp_controller_release_press_and_hold_cmd(avrcp_cid); 1003 break; 1004 case 'n': 1005 printf(" - start rewind\n"); 1006 status = avrcp_controller_press_and_hold_rewind(avrcp_cid); 1007 break; 1008 case 'N': 1009 printf(" - stop rewind\n"); 1010 status = avrcp_controller_release_press_and_hold_cmd(avrcp_cid); 1011 break; 1012 case 'i': 1013 printf(" - forward\n"); 1014 status = avrcp_controller_forward(avrcp_cid); 1015 break; 1016 case 'I': 1017 printf(" - backward\n"); 1018 status = avrcp_controller_backward(avrcp_cid); 1019 break; 1020 case 'M': 1021 printf(" - mute\n"); 1022 status = avrcp_controller_mute(avrcp_cid); 1023 break; 1024 case 'r': 1025 printf(" - skip\n"); 1026 status = avrcp_controller_skip(avrcp_cid); 1027 break; 1028 case 'q': 1029 printf(" - query repeat and shuffle mode\n"); 1030 status = avrcp_controller_query_shuffle_and_repeat_modes(avrcp_cid); 1031 break; 1032 case 'v': 1033 printf(" - repeat single track\n"); 1034 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 1035 break; 1036 case 'x': 1037 printf(" - repeat all tracks\n"); 1038 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 1039 break; 1040 case 'X': 1041 printf(" - disable repeat mode\n"); 1042 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_OFF); 1043 break; 1044 case 'z': 1045 printf(" - shuffle all tracks\n"); 1046 status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 1047 break; 1048 case 'Z': 1049 printf(" - disable shuffle mode\n"); 1050 status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_OFF); 1051 break; 1052 case 'a': 1053 printf("AVRCP: enable notification TRACK_CHANGED\n"); 1054 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1055 break; 1056 case 'A': 1057 printf("AVRCP: disable notification TRACK_CHANGED\n"); 1058 avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1059 break; 1060 case 'R': 1061 printf("AVRCP: enable notification PLAYBACK_POS_CHANGED\n"); 1062 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1063 break; 1064 case 'P': 1065 printf("AVRCP: disable notification PLAYBACK_POS_CHANGED\n"); 1066 avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1067 break; 1068 1069 default: 1070 show_usage(); 1071 return; 1072 } 1073 if (status != ERROR_CODE_SUCCESS){ 1074 printf("Could not perform command, status 0x%2x\n", status); 1075 } 1076 } 1077 #endif 1078 1079 int btstack_main(int argc, const char * argv[]); 1080 int btstack_main(int argc, const char * argv[]){ 1081 UNUSED(argc); 1082 (void)argv; 1083 1084 a2dp_and_avrcp_setup(); 1085 1086 #ifdef HAVE_BTSTACK_STDIN 1087 // parse human readable Bluetooth address 1088 sscanf_bd_addr(device_addr_string, device_addr); 1089 btstack_stdin_setup(stdin_process); 1090 #endif 1091 1092 // turn on! 1093 printf("Starting BTstack ...\n"); 1094 hci_power_control(HCI_POWER_ON); 1095 return 0; 1096 } 1097 /* EXAMPLE_END */