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 #ifdef SUPPORT_VOLUME_CHANGE_NOTIFICATION 145 static uint8_t events_num = 1; 146 static uint8_t events[] = { 147 AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED 148 }; 149 #endif 150 151 static uint8_t companies_num = 1; 152 static uint8_t companies[] = { 153 0x00, 0x19, 0x58 //BT SIG registered CompanyID 154 }; 155 156 #ifdef HAVE_BTSTACK_STDIN 157 // pts: 158 static const char * device_addr_string = "6C:72:E7:10:22:EE"; 159 // mac 2013: static const char * device_addr_string = "84:38:35:65:d1:15"; 160 // iPhone 5S: static const char * device_addr_string = "54:E4:3A:26:A2:39"; 161 static bd_addr_t device_addr; 162 #endif 163 164 static btstack_packet_callback_registration_t hci_event_callback_registration; 165 166 static uint8_t sdp_avdtp_sink_service_buffer[150]; 167 static uint8_t sdp_avrcp_target_service_buffer[150]; 168 static uint8_t sdp_avrcp_controller_service_buffer[200]; 169 170 static uint16_t a2dp_cid = 0; 171 static uint8_t a2dp_local_seid = 0; 172 173 static uint16_t avrcp_cid = 0; 174 static uint8_t avrcp_connected = 0; 175 static uint8_t avrcp_subevent_value[100]; 176 177 static uint8_t media_sbc_codec_capabilities[] = { 178 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 179 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 180 2, 53 181 }; 182 183 static uint8_t media_sbc_codec_configuration[] = { 184 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 185 (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 186 2, 53 187 }; 188 189 static int media_initialized = 0; 190 static btstack_resample_t resample_instance; 191 192 /* @section Main Application Setup 193 * 194 * @text The Listing MainConfiguration shows how to setup AD2P Sink and AVRCP services. 195 * Besides calling init() method for each service, you'll also need to register several packet handlers: 196 * - hci_packet_handler - handles legacy pairing, here by using fixed '0000' pin code. 197 * - 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). 198 * - 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. 199 * - avrcp_packet_handler - receives connect/disconnect event. 200 * - avrcp_controller_packet_handler - receives answers for sent AVRCP commands. 201 * - avrcp_target_packet_handler - receives AVRCP commands, and registered notifications. 202 * - 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. 203 * 204 * @text To announce A2DP Sink and AVRCP services, you need to create corresponding 205 * SDP records and register them with the SDP service. 206 * 207 * @text Note, currently only the SBC codec is supported. 208 * If you want to store the audio data in a file, you'll need to define STORE_TO_WAV_FILE. 209 * 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. 210 * The initialization of the SBC decoder requires a callback that handles PCM data: 211 * - 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. 212 */ 213 214 /* LISTING_START(MainConfiguration): Setup Audio Sink and AVRCP Controller services */ 215 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 216 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size); 217 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size); 218 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 219 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 220 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 221 #ifdef HAVE_BTSTACK_STDIN 222 static void stdin_process(char cmd); 223 #endif 224 225 static int a2dp_and_avrcp_setup(void){ 226 l2cap_init(); 227 // Initialize AVDTP Sink 228 a2dp_sink_init(); 229 a2dp_sink_register_packet_handler(&a2dp_sink_packet_handler); 230 a2dp_sink_register_media_handler(&handle_l2cap_media_data_packet); 231 232 avdtp_stream_endpoint_t * local_stream_endpoint = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO, 233 AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities), 234 media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration)); 235 if (!local_stream_endpoint){ 236 printf("A2DP Sink: not enough memory to create local stream endpoint\n"); 237 return 1; 238 } 239 a2dp_local_seid = avdtp_local_seid(local_stream_endpoint); 240 241 // Initialize AVRCP service. 242 avrcp_init(); 243 avrcp_register_packet_handler(&avrcp_packet_handler); 244 245 // Initialize AVRCP Controller 246 avrcp_controller_init(); 247 avrcp_controller_register_packet_handler(&avrcp_controller_packet_handler); 248 249 // Initialize AVRCP Target 250 avrcp_target_init(); 251 avrcp_target_register_packet_handler(&avrcp_target_packet_handler); 252 253 // Initialize SDP 254 sdp_init(); 255 // setup AVDTP sink 256 memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer)); 257 a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, 1, NULL, NULL); 258 sdp_register_service(sdp_avdtp_sink_service_buffer); 259 260 // setup AVRCP Controller 261 memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); 262 uint16_t controller_supported_features = (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_CATEGORY_PLAYER_OR_RECORDER); 263 #ifdef AVRCP_BROWSING_ENABLED 264 controller_supported_features |= (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_BROWSING); 265 #endif 266 avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10002, controller_supported_features, NULL, NULL); 267 sdp_register_service(sdp_avrcp_controller_service_buffer); 268 269 // setup AVRCP Target 270 memset(sdp_avrcp_target_service_buffer, 0, sizeof(sdp_avrcp_target_service_buffer)); 271 uint16_t target_supported_features = (1 << AVRCP_TARGET_SUPPORTED_FEATURE_CATEGORY_PLAYER_OR_RECORDER); 272 avrcp_target_create_sdp_record(sdp_avrcp_target_service_buffer, 0x10003, target_supported_features, NULL, NULL); 273 sdp_register_service(sdp_avrcp_target_service_buffer); 274 275 gap_set_local_name("A2DP Sink Demo 00:00:00:00:00:00"); 276 gap_discoverable_control(1); 277 gap_set_class_of_device(0x200408); 278 279 /* Register for HCI events */ 280 hci_event_callback_registration.callback = &hci_packet_handler; 281 hci_add_event_handler(&hci_event_callback_registration); 282 283 #ifdef HAVE_POSIX_FILE_IO 284 if (!btstack_audio_sink_get_instance()){ 285 printf("No audio playback.\n"); 286 } else { 287 printf("Audio playback supported.\n"); 288 } 289 #ifdef STORE_TO_WAV_FILE 290 printf("Audio will be stored to \'%s\' file.\n", wav_filename); 291 #endif 292 #endif 293 return 0; 294 } 295 /* LISTING_END */ 296 297 static void playback_handler(int16_t * buffer, uint16_t num_audio_frames){ 298 299 #ifdef STORE_TO_WAV_FILE 300 int wav_samples = num_audio_frames * NUM_CHANNELS; 301 int16_t * wav_buffer = buffer; 302 #endif 303 304 // called from lower-layer but guaranteed to be on main thread 305 if (sbc_frame_size == 0){ 306 memset(buffer, 0, num_audio_frames * BYTES_PER_FRAME); 307 return; 308 } 309 310 // first fill from resampled audio 311 uint32_t bytes_read; 312 btstack_ring_buffer_read(&decoded_audio_ring_buffer, (uint8_t *) buffer, num_audio_frames * BYTES_PER_FRAME, &bytes_read); 313 buffer += bytes_read / NUM_CHANNELS; 314 num_audio_frames -= bytes_read / BYTES_PER_FRAME; 315 316 // then start decoding sbc frames using request_* globals 317 request_buffer = buffer; 318 request_frames = num_audio_frames; 319 while (request_frames && btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) >= sbc_frame_size){ 320 // decode frame 321 uint8_t sbc_frame[MAX_SBC_FRAME_SIZE]; 322 btstack_ring_buffer_read(&sbc_frame_ring_buffer, sbc_frame, sbc_frame_size, &bytes_read); 323 btstack_sbc_decoder_process_data(&state, 0, sbc_frame, sbc_frame_size); 324 } 325 326 #ifdef STORE_TO_WAV_FILE 327 audio_frame_count += num_audio_frames; 328 wav_writer_write_int16(wav_samples, wav_buffer); 329 #endif 330 } 331 332 static void handle_pcm_data(int16_t * data, int num_audio_frames, int num_channels, int sample_rate, void * context){ 333 UNUSED(sample_rate); 334 UNUSED(context); 335 UNUSED(num_channels); // must be stereo == 2 336 337 const btstack_audio_sink_t * audio_sink = btstack_audio_sink_get_instance(); 338 if (!audio_sink){ 339 #ifdef STORE_TO_WAV_FILE 340 audio_frame_count += num_audio_frames; 341 wav_writer_write_int16(num_audio_frames * NUM_CHANNELS, data); 342 #endif 343 return; 344 } 345 346 // resample into request buffer - add some additional space for resampling 347 int16_t output_buffer[(128+16) * NUM_CHANNELS]; // 16 * 8 * 2 348 uint32_t resampled_frames = btstack_resample_block(&resample_instance, data, num_audio_frames, output_buffer); 349 350 // store data in btstack_audio buffer first 351 int frames_to_copy = btstack_min(resampled_frames, request_frames); 352 memcpy(request_buffer, output_buffer, frames_to_copy * BYTES_PER_FRAME); 353 request_frames -= frames_to_copy; 354 request_buffer += frames_to_copy * NUM_CHANNELS; 355 356 // and rest in ring buffer 357 int frames_to_store = resampled_frames - frames_to_copy; 358 if (frames_to_store){ 359 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); 360 if (status){ 361 printf("Error storing samples in PCM ring buffer!!!\n"); 362 } 363 } 364 } 365 366 static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ 367 if (media_initialized) return 0; 368 369 btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); 370 371 #ifdef STORE_TO_WAV_FILE 372 wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); 373 #endif 374 375 #ifdef STORE_TO_SBC_FILE 376 sbc_file = fopen(sbc_filename, "wb"); 377 #endif 378 379 btstack_ring_buffer_init(&sbc_frame_ring_buffer, sbc_frame_storage, sizeof(sbc_frame_storage)); 380 btstack_ring_buffer_init(&decoded_audio_ring_buffer, decoded_audio_storage, sizeof(decoded_audio_storage)); 381 btstack_resample_init(&resample_instance, configuration.num_channels); 382 383 // setup audio playback 384 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 385 if (audio){ 386 audio->init(NUM_CHANNELS, configuration.sampling_frequency, &playback_handler); 387 } 388 389 audio_stream_started = 0; 390 media_initialized = 1; 391 return 0; 392 } 393 394 static void media_processing_start(void){ 395 if (!media_initialized) return; 396 // setup audio playback 397 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 398 if (audio){ 399 audio->start_stream(); 400 } 401 audio_stream_started = 1; 402 } 403 404 static void media_processing_pause(void){ 405 if (!media_initialized) return; 406 // stop audio playback 407 audio_stream_started = 0; 408 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 409 if (audio){ 410 audio->stop_stream(); 411 } 412 } 413 414 static void media_processing_close(void){ 415 if (!media_initialized) return; 416 media_initialized = 0; 417 audio_stream_started = 0; 418 sbc_frame_size = 0; 419 420 #ifdef STORE_TO_WAV_FILE 421 wav_writer_close(); 422 uint32_t total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; 423 424 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); 425 printf("WAV Writer: Wrote %u audio frames to wav file: %s\n", audio_frame_count, wav_filename); 426 #endif 427 428 #ifdef STORE_TO_SBC_FILE 429 fclose(sbc_file); 430 #endif 431 432 // stop audio playback 433 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 434 if (audio){ 435 printf("close stream\n"); 436 audio->close(); 437 } 438 } 439 440 /* @section Handle Media Data Packet 441 * 442 * @text Media data packets, in this case the audio data, are received through the handle_l2cap_media_data_packet callback. 443 * Currently, only the SBC media codec is supported. Hence, the media data consists of the media packet header and the SBC packet. 444 * 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) 445 * If the audio stream wasn't started already and there are enough SBC frames in the ring buffer, start playback. 446 */ 447 448 static int read_media_data_header(uint8_t * packet, int size, int * offset, avdtp_media_packet_header_t * media_header); 449 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header); 450 451 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size){ 452 UNUSED(seid); 453 int pos = 0; 454 455 avdtp_media_packet_header_t media_header; 456 if (!read_media_data_header(packet, size, &pos, &media_header)) return; 457 458 avdtp_sbc_codec_header_t sbc_header; 459 if (!read_sbc_header(packet, size, &pos, &sbc_header)) return; 460 461 #ifdef STORE_TO_SBC_FILE 462 fwrite(packet+pos, size-pos, 1, sbc_file); 463 #endif 464 465 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 466 // process data right away if there's no audio implementation active, e.g. on posix systems to store as .wav 467 if (!audio){ 468 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 469 return; 470 } 471 472 // store sbc frame size for buffer management 473 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 474 475 int status = btstack_ring_buffer_write(&sbc_frame_ring_buffer, packet+pos, size-pos); 476 if (status){ 477 printf("Error storing samples in SBC ring buffer!!!\n"); 478 } 479 480 // decide on audio sync drift based on number of sbc frames in queue 481 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) / sbc_frame_size; 482 uint32_t resampling_factor; 483 484 // nomimal factor (fixed-point 2^16) and compensation offset 485 uint32_t nomimal_factor = 0x10000; 486 uint32_t compensation = 0x00100; 487 488 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 489 resampling_factor = nomimal_factor - compensation; // stretch samples 490 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 491 resampling_factor = nomimal_factor; // nothing to do 492 } else { 493 resampling_factor = nomimal_factor + compensation; // compress samples 494 } 495 496 btstack_resample_set_factor(&resample_instance, resampling_factor); 497 498 // start stream if enough frames buffered 499 if (!audio_stream_started && sbc_frames_in_buffer >= OPTIMAL_FRAMES_MIN){ 500 audio_stream_started = 1; 501 // setup audio playback 502 if (audio){ 503 audio->start_stream(); 504 } 505 } 506 } 507 508 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header){ 509 int sbc_header_len = 12; // without crc 510 int pos = *offset; 511 512 if (size - pos < sbc_header_len){ 513 printf("Not enough data to read SBC header, expected %d, received %d\n", sbc_header_len, size-pos); 514 return 0; 515 } 516 517 sbc_header->fragmentation = get_bit16(packet[pos], 7); 518 sbc_header->starting_packet = get_bit16(packet[pos], 6); 519 sbc_header->last_packet = get_bit16(packet[pos], 5); 520 sbc_header->num_frames = packet[pos] & 0x0f; 521 pos++; 522 *offset = pos; 523 return 1; 524 } 525 526 static int read_media_data_header(uint8_t *packet, int size, int *offset, avdtp_media_packet_header_t *media_header){ 527 int media_header_len = 12; // without crc 528 int pos = *offset; 529 530 if (size - pos < media_header_len){ 531 printf("Not enough data to read media packet header, expected %d, received %d\n", media_header_len, size-pos); 532 return 0; 533 } 534 535 media_header->version = packet[pos] & 0x03; 536 media_header->padding = get_bit16(packet[pos],2); 537 media_header->extension = get_bit16(packet[pos],3); 538 media_header->csrc_count = (packet[pos] >> 4) & 0x0F; 539 pos++; 540 541 media_header->marker = get_bit16(packet[pos],0); 542 media_header->payload_type = (packet[pos] >> 1) & 0x7F; 543 pos++; 544 545 media_header->sequence_number = big_endian_read_16(packet, pos); 546 pos+=2; 547 548 media_header->timestamp = big_endian_read_32(packet, pos); 549 pos+=4; 550 551 media_header->synchronization_source = big_endian_read_32(packet, pos); 552 pos+=4; 553 *offset = pos; 554 return 1; 555 } 556 557 static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ 558 printf(" - num_channels: %d\n", configuration.num_channels); 559 printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); 560 printf(" - channel_mode: %d\n", configuration.channel_mode); 561 printf(" - block_length: %d\n", configuration.block_length); 562 printf(" - subbands: %d\n", configuration.subbands); 563 printf(" - allocation_method: %d\n", configuration.allocation_method); 564 printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); 565 printf("\n"); 566 } 567 568 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 569 UNUSED(channel); 570 UNUSED(size); 571 uint16_t local_cid; 572 uint8_t status = 0xFF; 573 bd_addr_t adress; 574 575 if (packet_type != HCI_EVENT_PACKET) return; 576 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 577 switch (packet[2]){ 578 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 579 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 580 status = avrcp_subevent_connection_established_get_status(packet); 581 if (status != ERROR_CODE_SUCCESS){ 582 printf("AVRCP: Connection failed: status 0x%02x\n", status); 583 avrcp_cid = 0; 584 return; 585 } 586 587 avrcp_cid = local_cid; 588 avrcp_connected = 1; 589 avrcp_subevent_connection_established_get_bd_addr(packet, adress); 590 printf("AVRCP: Connected to %s, cid 0x%02x\n", bd_addr_to_str(adress), avrcp_cid); 591 592 // automatically enable notifications 593 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 594 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 595 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 596 return; 597 } 598 599 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 600 printf("AVRCP: Channel released: cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 601 avrcp_cid = 0; 602 avrcp_connected = 0; 603 return; 604 default: 605 break; 606 } 607 } 608 609 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 610 UNUSED(channel); 611 UNUSED(size); 612 uint8_t status = 0xFF; 613 614 if (packet_type != HCI_EVENT_PACKET) return; 615 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 616 617 status = packet[5]; 618 if (!avrcp_cid) return; 619 620 // ignore INTERIM status 621 if (status == AVRCP_CTYPE_RESPONSE_INTERIM){ 622 switch (packet[2]){ 623 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED:{ 624 uint32_t playback_position_ms = avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet); 625 if (playback_position_ms == AVRCP_NO_TRACK_SELECTED_PLAYBACK_POSITION_CHANGED){ 626 printf("AVRCP Controller: playback position changed, no track is selected\n"); 627 } 628 break; 629 } 630 default: 631 break; 632 } 633 return; 634 } 635 636 memset(avrcp_subevent_value, 0, sizeof(avrcp_subevent_value)); 637 switch (packet[2]){ 638 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED: 639 printf("AVRCP Controller: Playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet)); 640 break; 641 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 642 printf("AVRCP Controller: Playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); 643 return; 644 case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: 645 printf("AVRCP Controller: Playing content changed\n"); 646 return; 647 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 648 printf("AVRCP Controller: Track changed\n"); 649 return; 650 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 651 printf("AVRCP Controller: Absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 652 return; 653 case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: 654 printf("AVRCP Controller: Changed\n"); 655 return; 656 case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ 657 uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); 658 uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); 659 printf("AVRCP Controller: %s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 660 break; 661 } 662 case AVRCP_SUBEVENT_NOW_PLAYING_TRACK_INFO: 663 printf("AVRCP Controller: Track: %d\n", avrcp_subevent_now_playing_track_info_get_track(packet)); 664 break; 665 666 case AVRCP_SUBEVENT_NOW_PLAYING_TOTAL_TRACKS_INFO: 667 printf("AVRCP Controller: Total Tracks: %d\n", avrcp_subevent_now_playing_total_tracks_info_get_total_tracks(packet)); 668 break; 669 670 case AVRCP_SUBEVENT_NOW_PLAYING_TITLE_INFO: 671 if (avrcp_subevent_now_playing_title_info_get_value_len(packet) > 0){ 672 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_title_info_get_value(packet), avrcp_subevent_now_playing_title_info_get_value_len(packet)); 673 printf("AVRCP Controller: Title: %s\n", avrcp_subevent_value); 674 } 675 break; 676 677 case AVRCP_SUBEVENT_NOW_PLAYING_ARTIST_INFO: 678 if (avrcp_subevent_now_playing_artist_info_get_value_len(packet) > 0){ 679 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_artist_info_get_value(packet), avrcp_subevent_now_playing_artist_info_get_value_len(packet)); 680 printf("AVRCP Controller: Artist: %s\n", avrcp_subevent_value); 681 } 682 break; 683 684 case AVRCP_SUBEVENT_NOW_PLAYING_ALBUM_INFO: 685 if (avrcp_subevent_now_playing_album_info_get_value_len(packet) > 0){ 686 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_album_info_get_value(packet), avrcp_subevent_now_playing_album_info_get_value_len(packet)); 687 printf("AVRCP Controller: Album: %s\n", avrcp_subevent_value); 688 } 689 break; 690 691 case AVRCP_SUBEVENT_NOW_PLAYING_GENRE_INFO: 692 if (avrcp_subevent_now_playing_genre_info_get_value_len(packet) > 0){ 693 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_genre_info_get_value(packet), avrcp_subevent_now_playing_genre_info_get_value_len(packet)); 694 printf("AVRCP Controller: Genre: %s\n", avrcp_subevent_value); 695 } 696 break; 697 698 case AVRCP_SUBEVENT_PLAY_STATUS: 699 printf("AVRCP Controller: Song length %"PRIu32" ms, Song position %"PRIu32" ms, Play status %s\n", 700 avrcp_subevent_play_status_get_song_length(packet), 701 avrcp_subevent_play_status_get_song_position(packet), 702 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 703 break; 704 705 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 706 printf("AVRCP Controller: %s done\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 707 break; 708 709 case AVRCP_SUBEVENT_OPERATION_START: 710 printf("AVRCP Controller: Start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 711 break; 712 713 default: 714 printf("AVRCP Controller: Event 0x%02x is not parsed\n", packet[2]); 715 break; 716 } 717 } 718 719 720 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 721 UNUSED(channel); 722 UNUSED(size); 723 724 if (packet_type != HCI_EVENT_PACKET) return; 725 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 726 727 int volume; 728 729 switch (packet[2]){ 730 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 731 volume = avrcp_subevent_notification_volume_changed_get_absolute_volume(packet); 732 volume_percentage = volume * 100 / 127; 733 printf("AVRCP Target : Volume set to %d%% (%d)\n", volume_percentage, volume); 734 break; 735 736 case AVRCP_SUBEVENT_EVENT_IDS_QUERY: 737 #ifdef SUPPORT_VOLUME_CHANGE_NOTIFICATION 738 avrcp_target_supported_events(avrcp_cid, events_num, events, sizeof(events)); 739 #else 740 avrcp_target_supported_events(avrcp_cid, 0, NULL, 0); 741 #endif 742 break; 743 case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: 744 avrcp_target_supported_companies(avrcp_cid, companies_num, companies, sizeof(companies)); 745 break; 746 case AVRCP_SUBEVENT_OPERATION:{ 747 avrcp_operation_id_t operation_id = avrcp_subevent_operation_get_operation_id(packet); 748 switch (operation_id){ 749 case AVRCP_OPERATION_ID_PLAY: 750 printf("AVRCP Target : PLAY\n"); 751 break; 752 case AVRCP_OPERATION_ID_PAUSE: 753 printf("AVRCP Target : PAUSE\n"); 754 break; 755 case AVRCP_OPERATION_ID_STOP: 756 printf("AVRCP Target : STOP\n"); 757 break; 758 case AVRCP_OPERATION_ID_REWIND: 759 printf("AVRCP Target : REWIND\n"); 760 break; 761 case AVRCP_OPERATION_ID_FAST_FORWARD: 762 printf("AVRCP Target : FAST_FORWARD\n"); 763 break; 764 case AVRCP_OPERATION_ID_FORWARD: 765 printf("AVRCP Target : FORWARD\n"); 766 break; 767 case AVRCP_OPERATION_ID_BACKWARD: 768 printf("AVRCP Target : BACKWARD\n"); 769 break; 770 case AVRCP_OPERATION_ID_SKIP: 771 printf("AVRCP Target : SKIP\n"); 772 break; 773 case AVRCP_OPERATION_ID_MUTE: 774 printf("AVRCP Target : MUTE\n"); 775 break; 776 case AVRCP_OPERATION_ID_CHANNEL_UP: 777 printf("AVRCP Target : CHANNEL_UP\n"); 778 break; 779 case AVRCP_OPERATION_ID_CHANNEL_DOWN: 780 printf("AVRCP Target : CHANNEL_DOWN\n"); 781 break; 782 case AVRCP_OPERATION_ID_SELECT: 783 printf("AVRCP Target : SELECT\n"); 784 break; 785 case AVRCP_OPERATION_ID_UP: 786 printf("AVRCP Target : UP\n"); 787 break; 788 case AVRCP_OPERATION_ID_DOWN: 789 printf("AVRCP Target : DOWN\n"); 790 break; 791 case AVRCP_OPERATION_ID_LEFT: 792 printf("AVRCP Target : LEFT\n"); 793 break; 794 case AVRCP_OPERATION_ID_RIGHT: 795 printf("AVRCP Target : RIGTH\n"); 796 break; 797 case AVRCP_OPERATION_ID_ROOT_MENU: 798 printf("AVRCP Target : ROOT_MENU\n"); 799 break; 800 default: 801 return; 802 } 803 break; 804 } 805 default: 806 printf("AVRCP Target : Event 0x%02x is not parsed\n", packet[2]); 807 break; 808 } 809 } 810 811 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 812 UNUSED(channel); 813 UNUSED(size); 814 if (packet_type != HCI_EVENT_PACKET) return; 815 if (hci_event_packet_get_type(packet) == HCI_EVENT_PIN_CODE_REQUEST) { 816 bd_addr_t address; 817 printf("Pin code request - using '0000'\n"); 818 hci_event_pin_code_request_get_bd_addr(packet, address); 819 gap_pin_code_response(address, "0000"); 820 } 821 } 822 823 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 824 UNUSED(channel); 825 UNUSED(size); 826 bd_addr_t address; 827 uint8_t status; 828 829 if (packet_type != HCI_EVENT_PACKET) return; 830 if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; 831 832 switch (packet[2]){ 833 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 834 printf("A2DP Sink : Received non SBC codec - not implemented\n"); 835 break; 836 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 837 printf("A2DP Sink : Received SBC codec configuration\n"); 838 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 839 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 840 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 841 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 842 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 843 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 844 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 845 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 846 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 847 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 848 dump_sbc_configuration(sbc_configuration); 849 850 if (sbc_configuration.reconfigure){ 851 media_processing_close(); 852 } 853 // prepare media processing 854 media_processing_init(sbc_configuration); 855 break; 856 } 857 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 858 a2dp_subevent_stream_established_get_bd_addr(packet, address); 859 status = a2dp_subevent_stream_established_get_status(packet); 860 861 if (status){ 862 printf("A2DP Sink : Streaming connection failed, status 0x%02x\n", status); 863 break; 864 } 865 866 a2dp_cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 867 memcpy(device_addr, address, 6); 868 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); 869 break; 870 871 case A2DP_SUBEVENT_STREAM_STARTED: 872 printf("A2DP Sink : Stream started\n"); 873 media_processing_start(); 874 break; 875 876 case A2DP_SUBEVENT_STREAM_SUSPENDED: 877 printf("A2DP Sink : Stream paused\n"); 878 media_processing_pause(); 879 break; 880 881 case A2DP_SUBEVENT_STREAM_RELEASED: 882 printf("A2DP Sink : Stream released\n"); 883 media_processing_close(); 884 break; 885 886 case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: 887 printf("A2DP Sink : Signaling connection released\n"); 888 media_processing_close(); 889 break; 890 891 default: 892 printf("A2DP Sink : Not parsed 0x%02x\n", packet[2]); 893 break; 894 } 895 } 896 897 #ifdef HAVE_BTSTACK_STDIN 898 static void show_usage(void){ 899 bd_addr_t iut_address; 900 gap_local_bd_addr(iut_address); 901 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 902 printf("b - AVDTP Sink create connection to addr %s\n", bd_addr_to_str(device_addr)); 903 printf("B - AVDTP Sink disconnect\n"); 904 printf("c - AVRCP create connection to addr %s\n", bd_addr_to_str(device_addr)); 905 printf("C - AVRCP disconnect\n"); 906 907 printf("w - delay report\n"); 908 909 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 910 printf("O - get play status\n"); 911 printf("j - get now playing info\n"); 912 printf("k - play\n"); 913 printf("K - stop\n"); 914 printf("L - pause\n"); 915 printf("u - start fast forward\n"); 916 printf("U - stop fast forward\n"); 917 printf("n - start rewind\n"); 918 printf("N - stop rewind\n"); 919 printf("i - forward\n"); 920 printf("I - backward\n"); 921 printf("M - mute\n"); 922 printf("r - skip\n"); 923 printf("q - query repeat and shuffle mode\n"); 924 printf("v - repeat single track\n"); 925 printf("x - repeat all tracks\n"); 926 printf("X - disable repeat mode\n"); 927 printf("z - shuffle all tracks\n"); 928 printf("Z - disable shuffle mode\n"); 929 930 printf("a/A - register/deregister TRACK_CHANGED\n"); 931 printf("R/P - register/deregister PLAYBACK_POS_CHANGED\n"); 932 933 printf("\n--- Volume Control ---\n"); 934 printf("t - volume up for 10 percent\n"); 935 printf("T - volume down for 10 percent\n"); 936 937 printf("---\n"); 938 } 939 #endif 940 941 #ifdef HAVE_BTSTACK_STDIN 942 static void stdin_process(char cmd){ 943 uint8_t status = ERROR_CODE_SUCCESS; 944 945 switch (cmd){ 946 case 'b': 947 status = a2dp_sink_establish_stream(device_addr, a2dp_local_seid, &a2dp_cid); 948 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); 949 break; 950 case 'B': 951 printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 952 status = avdtp_sink_disconnect(a2dp_cid); 953 break; 954 case 'c': 955 printf(" - Create AVRCP connection to addr %s.\n", bd_addr_to_str(device_addr)); 956 status = avrcp_connect(device_addr, &avrcp_cid); 957 break; 958 case 'C': 959 printf(" - AVRCP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 960 status = avrcp_disconnect(avrcp_cid); 961 break; 962 963 case '\n': 964 case '\r': 965 break; 966 case 'w': 967 printf("Send delay report\n"); 968 avdtp_sink_delay_report(a2dp_cid, a2dp_local_seid, 100); 969 break; 970 // Volume Control 971 case 't': 972 volume_percentage = volume_percentage <= 90 ? volume_percentage + 10 : 100; 973 printf(" - volume up for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 974 status = avrcp_target_volume_changed(avrcp_cid, volume_percentage * 127 / 100); 975 break; 976 case 'T': 977 volume_percentage = volume_percentage >= 10 ? volume_percentage - 10 : 0; 978 printf(" - volume down for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 979 status = avrcp_target_volume_changed(avrcp_cid, volume_percentage * 127 / 100); 980 break; 981 982 case 'O': 983 printf(" - get play status\n"); 984 status = avrcp_controller_get_play_status(avrcp_cid); 985 break; 986 case 'j': 987 printf(" - get now playing info\n"); 988 status = avrcp_controller_get_now_playing_info(avrcp_cid); 989 break; 990 case 'k': 991 printf(" - play\n"); 992 status = avrcp_controller_play(avrcp_cid); 993 break; 994 case 'K': 995 printf(" - stop\n"); 996 status = avrcp_controller_stop(avrcp_cid); 997 break; 998 case 'L': 999 printf(" - pause\n"); 1000 status = avrcp_controller_pause(avrcp_cid); 1001 break; 1002 case 'u': 1003 printf(" - start fast forward\n"); 1004 status = avrcp_controller_press_and_hold_fast_forward(avrcp_cid); 1005 break; 1006 case 'U': 1007 printf(" - stop fast forward\n"); 1008 status = avrcp_controller_release_press_and_hold_cmd(avrcp_cid); 1009 break; 1010 case 'n': 1011 printf(" - start rewind\n"); 1012 status = avrcp_controller_press_and_hold_rewind(avrcp_cid); 1013 break; 1014 case 'N': 1015 printf(" - stop rewind\n"); 1016 status = avrcp_controller_release_press_and_hold_cmd(avrcp_cid); 1017 break; 1018 case 'i': 1019 printf(" - forward\n"); 1020 status = avrcp_controller_forward(avrcp_cid); 1021 break; 1022 case 'I': 1023 printf(" - backward\n"); 1024 status = avrcp_controller_backward(avrcp_cid); 1025 break; 1026 case 'M': 1027 printf(" - mute\n"); 1028 status = avrcp_controller_mute(avrcp_cid); 1029 break; 1030 case 'r': 1031 printf(" - skip\n"); 1032 status = avrcp_controller_skip(avrcp_cid); 1033 break; 1034 case 'q': 1035 printf(" - query repeat and shuffle mode\n"); 1036 status = avrcp_controller_query_shuffle_and_repeat_modes(avrcp_cid); 1037 break; 1038 case 'v': 1039 printf(" - repeat single track\n"); 1040 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 1041 break; 1042 case 'x': 1043 printf(" - repeat all tracks\n"); 1044 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 1045 break; 1046 case 'X': 1047 printf(" - disable repeat mode\n"); 1048 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_OFF); 1049 break; 1050 case 'z': 1051 printf(" - shuffle all tracks\n"); 1052 status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 1053 break; 1054 case 'Z': 1055 printf(" - disable shuffle mode\n"); 1056 status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_OFF); 1057 break; 1058 case 'a': 1059 printf("AVRCP: enable notification TRACK_CHANGED\n"); 1060 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1061 break; 1062 case 'A': 1063 printf("AVRCP: disable notification TRACK_CHANGED\n"); 1064 avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1065 break; 1066 case 'R': 1067 printf("AVRCP: enable notification PLAYBACK_POS_CHANGED\n"); 1068 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1069 break; 1070 case 'P': 1071 printf("AVRCP: disable notification PLAYBACK_POS_CHANGED\n"); 1072 avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1073 break; 1074 1075 default: 1076 show_usage(); 1077 return; 1078 } 1079 if (status != ERROR_CODE_SUCCESS){ 1080 printf("Could not perform command, status 0x%2x\n", status); 1081 } 1082 } 1083 #endif 1084 1085 int btstack_main(int argc, const char * argv[]); 1086 int btstack_main(int argc, const char * argv[]){ 1087 UNUSED(argc); 1088 (void)argv; 1089 1090 a2dp_and_avrcp_setup(); 1091 1092 #ifdef HAVE_BTSTACK_STDIN 1093 // parse human readable Bluetooth address 1094 sscanf_bd_addr(device_addr_string, device_addr); 1095 btstack_stdin_setup(stdin_process); 1096 #endif 1097 1098 // turn on! 1099 printf("Starting BTstack ...\n"); 1100 hci_power_control(HCI_POWER_ON); 1101 return 0; 1102 } 1103 /* EXAMPLE_END */