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 #define SUPPORT_VOLUME_CHANGE_NOTIFICATION 76 77 #ifdef HAVE_BTSTACK_STDIN 78 #include "btstack_stdin.h" 79 #endif 80 81 #include "btstack_ring_buffer.h" 82 83 #ifdef HAVE_POSIX_FILE_IO 84 #include "wav_util.h" 85 #define STORE_TO_SBC_FILE 86 #define STORE_TO_WAV_FILE 87 #endif 88 89 #define NUM_CHANNELS 2 90 #define BYTES_PER_FRAME (2*NUM_CHANNELS) 91 #define MAX_SBC_FRAME_SIZE 120 92 93 // SBC Decoder for WAV file or live playback 94 static btstack_sbc_decoder_state_t state; 95 static btstack_sbc_mode_t mode = SBC_MODE_STANDARD; 96 97 // ring buffer for SBC Frames 98 // below 30: add samples, 30-40: fine, above 40: drop samples 99 #define OPTIMAL_FRAMES_MIN 30 100 #define OPTIMAL_FRAMES_MAX 40 101 #define ADDITIONAL_FRAMES 20 102 static uint8_t sbc_frame_storage[(OPTIMAL_FRAMES_MAX + ADDITIONAL_FRAMES) * MAX_SBC_FRAME_SIZE]; 103 static btstack_ring_buffer_t sbc_frame_ring_buffer; 104 static unsigned int sbc_frame_size; 105 106 // rest buffer for not fully used sbc frames, with additional frames for resampling 107 static uint8_t decoded_audio_storage[(128+16) * BYTES_PER_FRAME]; 108 static btstack_ring_buffer_t decoded_audio_ring_buffer; 109 110 static int audio_stream_started; 111 112 // temp storage of lower-layer request 113 static int16_t * request_buffer; 114 static int request_frames; 115 116 #define STORE_FROM_PLAYBACK 117 118 // WAV File 119 #ifdef STORE_TO_WAV_FILE 120 static uint32_t audio_frame_count = 0; 121 static char * wav_filename = "av2dp_sink_demo.wav"; 122 #endif 123 124 #ifdef STORE_TO_SBC_FILE 125 static FILE * sbc_file; 126 static char * sbc_filename = "av2dp_sink_demo.sbc"; 127 #endif 128 129 typedef struct { 130 int reconfigure; 131 int num_channels; 132 int sampling_frequency; 133 int channel_mode; 134 int block_length; 135 int subbands; 136 int allocation_method; 137 int min_bitpool_value; 138 int max_bitpool_value; 139 int frames_per_buffer; 140 } avdtp_media_codec_configuration_sbc_t; 141 142 static avdtp_media_codec_configuration_sbc_t sbc_configuration; 143 static int volume_percentage = 0; 144 145 #ifdef SUPPORT_VOLUME_CHANGE_NOTIFICATION 146 static uint8_t events_num = 1; 147 static uint8_t events[] = { 148 AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED 149 }; 150 #endif 151 152 static uint8_t companies_num = 1; 153 static uint8_t companies[] = { 154 0x00, 0x19, 0x58 //BT SIG registered CompanyID 155 }; 156 157 #ifdef HAVE_BTSTACK_STDIN 158 // pts: 159 static const char * device_addr_string = "6C:72:E7:10:22:EE"; 160 // mac 2013: static const char * device_addr_string = "84:38:35:65:d1:15"; 161 // iPhone 5S: static const char * device_addr_string = "54:E4:3A:26:A2:39"; 162 static bd_addr_t device_addr; 163 #endif 164 165 static btstack_packet_callback_registration_t hci_event_callback_registration; 166 167 static uint8_t sdp_avdtp_sink_service_buffer[150]; 168 static uint8_t sdp_avrcp_target_service_buffer[150]; 169 static uint8_t sdp_avrcp_controller_service_buffer[200]; 170 171 static uint16_t a2dp_cid = 0; 172 static uint8_t a2dp_local_seid = 0; 173 174 static uint16_t avrcp_cid = 0; 175 static uint8_t avrcp_connected = 0; 176 static uint8_t avrcp_subevent_value[100]; 177 178 static uint8_t media_sbc_codec_capabilities[] = { 179 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 180 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 181 2, 53 182 }; 183 184 static uint8_t media_sbc_codec_configuration[] = { 185 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 186 (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 187 2, 53 188 }; 189 190 static int media_initialized = 0; 191 static btstack_resample_t resample_instance; 192 193 /* @section Main Application Setup 194 * 195 * @text The Listing MainConfiguration shows how to setup AD2P Sink and AVRCP services. 196 * Besides calling init() method for each service, you'll also need to register several packet handlers: 197 * - hci_packet_handler - handles legacy pairing, here by using fixed '0000' pin code. 198 * - 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). 199 * - 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. 200 * - avrcp_packet_handler - receives connect/disconnect event. 201 * - avrcp_controller_packet_handler - receives answers for sent AVRCP commands. 202 * - avrcp_target_packet_handler - receives AVRCP commands, and registered notifications. 203 * - 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. 204 * 205 * @text To announce A2DP Sink and AVRCP services, you need to create corresponding 206 * SDP records and register them with the SDP service. 207 * 208 * @text Note, currently only the SBC codec is supported. 209 * If you want to store the audio data in a file, you'll need to define STORE_TO_WAV_FILE. 210 * 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. 211 * The initialization of the SBC decoder requires a callback that handles PCM data: 212 * - 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. 213 */ 214 215 /* LISTING_START(MainConfiguration): Setup Audio Sink and AVRCP Controller services */ 216 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 217 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size); 218 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size); 219 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 220 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 221 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 222 #ifdef HAVE_BTSTACK_STDIN 223 static void stdin_process(char cmd); 224 #endif 225 226 static int a2dp_and_avrcp_setup(void){ 227 l2cap_init(); 228 // Initialize AVDTP Sink 229 a2dp_sink_init(); 230 a2dp_sink_register_packet_handler(&a2dp_sink_packet_handler); 231 a2dp_sink_register_media_handler(&handle_l2cap_media_data_packet); 232 233 avdtp_stream_endpoint_t * local_stream_endpoint = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO, 234 AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities), 235 media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration)); 236 if (!local_stream_endpoint){ 237 printf("A2DP Sink: not enough memory to create local stream endpoint\n"); 238 return 1; 239 } 240 a2dp_local_seid = avdtp_local_seid(local_stream_endpoint); 241 242 // Initialize AVRCP service. 243 avrcp_init(); 244 avrcp_register_packet_handler(&avrcp_packet_handler); 245 246 // Initialize AVRCP Controller 247 avrcp_controller_init(); 248 avrcp_controller_register_packet_handler(&avrcp_controller_packet_handler); 249 250 // Initialize AVRCP Target 251 avrcp_target_init(); 252 avrcp_target_register_packet_handler(&avrcp_target_packet_handler); 253 254 // Initialize SDP 255 sdp_init(); 256 // setup AVDTP sink 257 memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer)); 258 a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, AVDTP_SINK_SF_Headphone, NULL, NULL); 259 sdp_register_service(sdp_avdtp_sink_service_buffer); 260 261 // setup AVRCP Controller 262 memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); 263 uint16_t controller_supported_features = (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_CATEGORY_PLAYER_OR_RECORDER); 264 #ifdef AVRCP_BROWSING_ENABLED 265 controller_supported_features |= (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_BROWSING); 266 #endif 267 avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10002, controller_supported_features, NULL, NULL); 268 sdp_register_service(sdp_avrcp_controller_service_buffer); 269 270 // setup AVRCP Target 271 memset(sdp_avrcp_target_service_buffer, 0, sizeof(sdp_avrcp_target_service_buffer)); 272 uint16_t target_supported_features = (1 << AVRCP_TARGET_SUPPORTED_FEATURE_CATEGORY_MONITOR_OR_AMPLIFIER); 273 avrcp_target_create_sdp_record(sdp_avrcp_target_service_buffer, 0x10003, target_supported_features, NULL, NULL); 274 sdp_register_service(sdp_avrcp_target_service_buffer); 275 276 gap_set_local_name("A2DP Sink Demo 00:00:00:00:00:00"); 277 gap_discoverable_control(1); 278 gap_set_class_of_device(0x200408); 279 280 /* Register for HCI events */ 281 hci_event_callback_registration.callback = &hci_packet_handler; 282 hci_add_event_handler(&hci_event_callback_registration); 283 284 #ifdef HAVE_POSIX_FILE_IO 285 if (!btstack_audio_sink_get_instance()){ 286 printf("No audio playback.\n"); 287 } else { 288 printf("Audio playback supported.\n"); 289 } 290 #ifdef STORE_TO_WAV_FILE 291 printf("Audio will be stored to \'%s\' file.\n", wav_filename); 292 #endif 293 #endif 294 return 0; 295 } 296 /* LISTING_END */ 297 298 static void playback_handler(int16_t * buffer, uint16_t num_audio_frames){ 299 300 #ifdef STORE_TO_WAV_FILE 301 int wav_samples = num_audio_frames * NUM_CHANNELS; 302 int16_t * wav_buffer = buffer; 303 #endif 304 305 // called from lower-layer but guaranteed to be on main thread 306 if (sbc_frame_size == 0){ 307 memset(buffer, 0, num_audio_frames * BYTES_PER_FRAME); 308 return; 309 } 310 311 // first fill from resampled audio 312 uint32_t bytes_read; 313 btstack_ring_buffer_read(&decoded_audio_ring_buffer, (uint8_t *) buffer, num_audio_frames * BYTES_PER_FRAME, &bytes_read); 314 buffer += bytes_read / NUM_CHANNELS; 315 num_audio_frames -= bytes_read / BYTES_PER_FRAME; 316 317 // then start decoding sbc frames using request_* globals 318 request_buffer = buffer; 319 request_frames = num_audio_frames; 320 while (request_frames && btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) >= sbc_frame_size){ 321 // decode frame 322 uint8_t sbc_frame[MAX_SBC_FRAME_SIZE]; 323 btstack_ring_buffer_read(&sbc_frame_ring_buffer, sbc_frame, sbc_frame_size, &bytes_read); 324 btstack_sbc_decoder_process_data(&state, 0, sbc_frame, sbc_frame_size); 325 } 326 327 #ifdef STORE_TO_WAV_FILE 328 audio_frame_count += num_audio_frames; 329 wav_writer_write_int16(wav_samples, wav_buffer); 330 #endif 331 } 332 333 static void handle_pcm_data(int16_t * data, int num_audio_frames, int num_channels, int sample_rate, void * context){ 334 UNUSED(sample_rate); 335 UNUSED(context); 336 UNUSED(num_channels); // must be stereo == 2 337 338 const btstack_audio_sink_t * audio_sink = btstack_audio_sink_get_instance(); 339 if (!audio_sink){ 340 #ifdef STORE_TO_WAV_FILE 341 audio_frame_count += num_audio_frames; 342 wav_writer_write_int16(num_audio_frames * NUM_CHANNELS, data); 343 #endif 344 return; 345 } 346 347 // resample into request buffer - add some additional space for resampling 348 int16_t output_buffer[(128+16) * NUM_CHANNELS]; // 16 * 8 * 2 349 uint32_t resampled_frames = btstack_resample_block(&resample_instance, data, num_audio_frames, output_buffer); 350 351 // store data in btstack_audio buffer first 352 int frames_to_copy = btstack_min(resampled_frames, request_frames); 353 memcpy(request_buffer, output_buffer, frames_to_copy * BYTES_PER_FRAME); 354 request_frames -= frames_to_copy; 355 request_buffer += frames_to_copy * NUM_CHANNELS; 356 357 // and rest in ring buffer 358 int frames_to_store = resampled_frames - frames_to_copy; 359 if (frames_to_store){ 360 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); 361 if (status){ 362 printf("Error storing samples in PCM ring buffer!!!\n"); 363 } 364 } 365 } 366 367 static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ 368 if (media_initialized) return 0; 369 370 btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); 371 372 #ifdef STORE_TO_WAV_FILE 373 wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); 374 #endif 375 376 #ifdef STORE_TO_SBC_FILE 377 sbc_file = fopen(sbc_filename, "wb"); 378 #endif 379 380 btstack_ring_buffer_init(&sbc_frame_ring_buffer, sbc_frame_storage, sizeof(sbc_frame_storage)); 381 btstack_ring_buffer_init(&decoded_audio_ring_buffer, decoded_audio_storage, sizeof(decoded_audio_storage)); 382 btstack_resample_init(&resample_instance, configuration.num_channels); 383 384 // setup audio playback 385 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 386 if (audio){ 387 audio->init(NUM_CHANNELS, configuration.sampling_frequency, &playback_handler); 388 } 389 390 audio_stream_started = 0; 391 media_initialized = 1; 392 return 0; 393 } 394 395 static void media_processing_start(void){ 396 if (!media_initialized) return; 397 // setup audio playback 398 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 399 if (audio){ 400 audio->start_stream(); 401 } 402 audio_stream_started = 1; 403 } 404 405 static void media_processing_pause(void){ 406 if (!media_initialized) return; 407 // stop audio playback 408 audio_stream_started = 0; 409 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 410 if (audio){ 411 audio->stop_stream(); 412 } 413 } 414 415 static void media_processing_close(void){ 416 if (!media_initialized) return; 417 media_initialized = 0; 418 audio_stream_started = 0; 419 sbc_frame_size = 0; 420 421 #ifdef STORE_TO_WAV_FILE 422 wav_writer_close(); 423 uint32_t total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; 424 425 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); 426 printf("WAV Writer: Wrote %u audio frames to wav file: %s\n", audio_frame_count, wav_filename); 427 #endif 428 429 #ifdef STORE_TO_SBC_FILE 430 fclose(sbc_file); 431 #endif 432 433 // stop audio playback 434 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 435 if (audio){ 436 printf("close stream\n"); 437 audio->close(); 438 } 439 } 440 441 /* @section Handle Media Data Packet 442 * 443 * @text Media data packets, in this case the audio data, are received through the handle_l2cap_media_data_packet callback. 444 * Currently, only the SBC media codec is supported. Hence, the media data consists of the media packet header and the SBC packet. 445 * 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) 446 * If the audio stream wasn't started already and there are enough SBC frames in the ring buffer, start playback. 447 */ 448 449 static int read_media_data_header(uint8_t * packet, int size, int * offset, avdtp_media_packet_header_t * media_header); 450 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header); 451 452 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size){ 453 UNUSED(seid); 454 int pos = 0; 455 456 avdtp_media_packet_header_t media_header; 457 if (!read_media_data_header(packet, size, &pos, &media_header)) return; 458 459 avdtp_sbc_codec_header_t sbc_header; 460 if (!read_sbc_header(packet, size, &pos, &sbc_header)) return; 461 462 #ifdef STORE_TO_SBC_FILE 463 fwrite(packet+pos, size-pos, 1, sbc_file); 464 #endif 465 466 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 467 // process data right away if there's no audio implementation active, e.g. on posix systems to store as .wav 468 if (!audio){ 469 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 470 return; 471 } 472 473 // store sbc frame size for buffer management 474 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 475 476 int status = btstack_ring_buffer_write(&sbc_frame_ring_buffer, packet+pos, size-pos); 477 if (status){ 478 printf("Error storing samples in SBC ring buffer!!!\n"); 479 } 480 481 // decide on audio sync drift based on number of sbc frames in queue 482 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) / sbc_frame_size; 483 uint32_t resampling_factor; 484 485 // nomimal factor (fixed-point 2^16) and compensation offset 486 uint32_t nomimal_factor = 0x10000; 487 uint32_t compensation = 0x00100; 488 489 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 490 resampling_factor = nomimal_factor - compensation; // stretch samples 491 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 492 resampling_factor = nomimal_factor; // nothing to do 493 } else { 494 resampling_factor = nomimal_factor + compensation; // compress samples 495 } 496 497 btstack_resample_set_factor(&resample_instance, resampling_factor); 498 499 // start stream if enough frames buffered 500 if (!audio_stream_started && sbc_frames_in_buffer >= OPTIMAL_FRAMES_MIN){ 501 audio_stream_started = 1; 502 // setup audio playback 503 if (audio){ 504 audio->start_stream(); 505 } 506 } 507 } 508 509 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header){ 510 int sbc_header_len = 12; // without crc 511 int pos = *offset; 512 513 if (size - pos < sbc_header_len){ 514 printf("Not enough data to read SBC header, expected %d, received %d\n", sbc_header_len, size-pos); 515 return 0; 516 } 517 518 sbc_header->fragmentation = get_bit16(packet[pos], 7); 519 sbc_header->starting_packet = get_bit16(packet[pos], 6); 520 sbc_header->last_packet = get_bit16(packet[pos], 5); 521 sbc_header->num_frames = packet[pos] & 0x0f; 522 pos++; 523 *offset = pos; 524 return 1; 525 } 526 527 static int read_media_data_header(uint8_t *packet, int size, int *offset, avdtp_media_packet_header_t *media_header){ 528 int media_header_len = 12; // without crc 529 int pos = *offset; 530 531 if (size - pos < media_header_len){ 532 printf("Not enough data to read media packet header, expected %d, received %d\n", media_header_len, size-pos); 533 return 0; 534 } 535 536 media_header->version = packet[pos] & 0x03; 537 media_header->padding = get_bit16(packet[pos],2); 538 media_header->extension = get_bit16(packet[pos],3); 539 media_header->csrc_count = (packet[pos] >> 4) & 0x0F; 540 pos++; 541 542 media_header->marker = get_bit16(packet[pos],0); 543 media_header->payload_type = (packet[pos] >> 1) & 0x7F; 544 pos++; 545 546 media_header->sequence_number = big_endian_read_16(packet, pos); 547 pos+=2; 548 549 media_header->timestamp = big_endian_read_32(packet, pos); 550 pos+=4; 551 552 media_header->synchronization_source = big_endian_read_32(packet, pos); 553 pos+=4; 554 *offset = pos; 555 return 1; 556 } 557 558 static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ 559 printf(" - num_channels: %d\n", configuration.num_channels); 560 printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); 561 printf(" - channel_mode: %d\n", configuration.channel_mode); 562 printf(" - block_length: %d\n", configuration.block_length); 563 printf(" - subbands: %d\n", configuration.subbands); 564 printf(" - allocation_method: %d\n", configuration.allocation_method); 565 printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); 566 printf("\n"); 567 } 568 569 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 570 UNUSED(channel); 571 UNUSED(size); 572 uint16_t local_cid; 573 uint8_t status = 0xFF; 574 bd_addr_t adress; 575 576 if (packet_type != HCI_EVENT_PACKET) return; 577 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 578 switch (packet[2]){ 579 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 580 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 581 status = avrcp_subevent_connection_established_get_status(packet); 582 if (status != ERROR_CODE_SUCCESS){ 583 printf("AVRCP: Connection failed: status 0x%02x\n", status); 584 avrcp_cid = 0; 585 return; 586 } 587 588 avrcp_cid = local_cid; 589 avrcp_connected = 1; 590 avrcp_subevent_connection_established_get_bd_addr(packet, adress); 591 printf("AVRCP: Connected to %s, cid 0x%02x\n", bd_addr_to_str(adress), avrcp_cid); 592 593 // automatically enable notifications 594 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 595 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 596 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 597 return; 598 } 599 600 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 601 printf("AVRCP: Channel released: cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 602 avrcp_cid = 0; 603 avrcp_connected = 0; 604 return; 605 default: 606 break; 607 } 608 } 609 610 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 611 UNUSED(channel); 612 UNUSED(size); 613 uint8_t status = 0xFF; 614 615 if (packet_type != HCI_EVENT_PACKET) return; 616 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 617 618 status = packet[5]; 619 if (!avrcp_cid) return; 620 621 // ignore INTERIM status 622 if (status == AVRCP_CTYPE_RESPONSE_INTERIM){ 623 switch (packet[2]){ 624 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED:{ 625 uint32_t playback_position_ms = avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet); 626 if (playback_position_ms == AVRCP_NO_TRACK_SELECTED_PLAYBACK_POSITION_CHANGED){ 627 printf("AVRCP Controller: playback position changed, no track is selected\n"); 628 } 629 break; 630 } 631 default: 632 break; 633 } 634 return; 635 } 636 637 memset(avrcp_subevent_value, 0, sizeof(avrcp_subevent_value)); 638 switch (packet[2]){ 639 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED: 640 printf("AVRCP Controller: Playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet)); 641 break; 642 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 643 printf("AVRCP Controller: Playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); 644 return; 645 case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: 646 printf("AVRCP Controller: Playing content changed\n"); 647 return; 648 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 649 printf("AVRCP Controller: Track changed\n"); 650 return; 651 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 652 printf("AVRCP Controller: Absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 653 return; 654 case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: 655 printf("AVRCP Controller: Changed\n"); 656 return; 657 case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ 658 uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); 659 uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); 660 printf("AVRCP Controller: %s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 661 break; 662 } 663 case AVRCP_SUBEVENT_NOW_PLAYING_TRACK_INFO: 664 printf("AVRCP Controller: Track: %d\n", avrcp_subevent_now_playing_track_info_get_track(packet)); 665 break; 666 667 case AVRCP_SUBEVENT_NOW_PLAYING_TOTAL_TRACKS_INFO: 668 printf("AVRCP Controller: Total Tracks: %d\n", avrcp_subevent_now_playing_total_tracks_info_get_total_tracks(packet)); 669 break; 670 671 case AVRCP_SUBEVENT_NOW_PLAYING_TITLE_INFO: 672 if (avrcp_subevent_now_playing_title_info_get_value_len(packet) > 0){ 673 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_title_info_get_value(packet), avrcp_subevent_now_playing_title_info_get_value_len(packet)); 674 printf("AVRCP Controller: Title: %s\n", avrcp_subevent_value); 675 } 676 break; 677 678 case AVRCP_SUBEVENT_NOW_PLAYING_ARTIST_INFO: 679 if (avrcp_subevent_now_playing_artist_info_get_value_len(packet) > 0){ 680 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_artist_info_get_value(packet), avrcp_subevent_now_playing_artist_info_get_value_len(packet)); 681 printf("AVRCP Controller: Artist: %s\n", avrcp_subevent_value); 682 } 683 break; 684 685 case AVRCP_SUBEVENT_NOW_PLAYING_ALBUM_INFO: 686 if (avrcp_subevent_now_playing_album_info_get_value_len(packet) > 0){ 687 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_album_info_get_value(packet), avrcp_subevent_now_playing_album_info_get_value_len(packet)); 688 printf("AVRCP Controller: Album: %s\n", avrcp_subevent_value); 689 } 690 break; 691 692 case AVRCP_SUBEVENT_NOW_PLAYING_GENRE_INFO: 693 if (avrcp_subevent_now_playing_genre_info_get_value_len(packet) > 0){ 694 memcpy(avrcp_subevent_value, avrcp_subevent_now_playing_genre_info_get_value(packet), avrcp_subevent_now_playing_genre_info_get_value_len(packet)); 695 printf("AVRCP Controller: Genre: %s\n", avrcp_subevent_value); 696 } 697 break; 698 699 case AVRCP_SUBEVENT_PLAY_STATUS: 700 printf("AVRCP Controller: Song length %"PRIu32" ms, Song position %"PRIu32" ms, Play status %s\n", 701 avrcp_subevent_play_status_get_song_length(packet), 702 avrcp_subevent_play_status_get_song_position(packet), 703 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 704 break; 705 706 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 707 printf("AVRCP Controller: %s done\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 708 break; 709 710 case AVRCP_SUBEVENT_OPERATION_START: 711 printf("AVRCP Controller: Start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 712 break; 713 714 default: 715 printf("AVRCP Controller: Event 0x%02x is not parsed\n", packet[2]); 716 break; 717 } 718 } 719 720 721 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 722 UNUSED(channel); 723 UNUSED(size); 724 725 if (packet_type != HCI_EVENT_PACKET) return; 726 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 727 728 int volume; 729 730 switch (packet[2]){ 731 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 732 volume = avrcp_subevent_notification_volume_changed_get_absolute_volume(packet); 733 volume_percentage = volume * 100 / 127; 734 printf("AVRCP Target : Volume set to %d%% (%d)\n", volume_percentage, volume); 735 break; 736 737 case AVRCP_SUBEVENT_EVENT_IDS_QUERY: 738 #ifdef SUPPORT_VOLUME_CHANGE_NOTIFICATION 739 avrcp_target_supported_events(avrcp_cid, events_num, events, sizeof(events)); 740 #else 741 avrcp_target_supported_events(avrcp_cid, 0, NULL, 0); 742 #endif 743 break; 744 case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: 745 avrcp_target_supported_companies(avrcp_cid, companies_num, companies, sizeof(companies)); 746 break; 747 case AVRCP_SUBEVENT_OPERATION:{ 748 avrcp_operation_id_t operation_id = avrcp_subevent_operation_get_operation_id(packet); 749 switch (operation_id){ 750 case AVRCP_OPERATION_ID_PLAY: 751 printf("AVRCP Target : PLAY\n"); 752 break; 753 case AVRCP_OPERATION_ID_PAUSE: 754 printf("AVRCP Target : PAUSE\n"); 755 break; 756 case AVRCP_OPERATION_ID_STOP: 757 printf("AVRCP Target : STOP\n"); 758 break; 759 case AVRCP_OPERATION_ID_REWIND: 760 printf("AVRCP Target : REWIND\n"); 761 break; 762 case AVRCP_OPERATION_ID_FAST_FORWARD: 763 printf("AVRCP Target : FAST_FORWARD\n"); 764 break; 765 case AVRCP_OPERATION_ID_FORWARD: 766 printf("AVRCP Target : FORWARD\n"); 767 break; 768 case AVRCP_OPERATION_ID_BACKWARD: 769 printf("AVRCP Target : BACKWARD\n"); 770 break; 771 case AVRCP_OPERATION_ID_SKIP: 772 printf("AVRCP Target : SKIP\n"); 773 break; 774 case AVRCP_OPERATION_ID_MUTE: 775 printf("AVRCP Target : MUTE\n"); 776 break; 777 case AVRCP_OPERATION_ID_CHANNEL_UP: 778 printf("AVRCP Target : CHANNEL_UP\n"); 779 break; 780 case AVRCP_OPERATION_ID_CHANNEL_DOWN: 781 printf("AVRCP Target : CHANNEL_DOWN\n"); 782 break; 783 case AVRCP_OPERATION_ID_SELECT: 784 printf("AVRCP Target : SELECT\n"); 785 break; 786 case AVRCP_OPERATION_ID_UP: 787 printf("AVRCP Target : UP\n"); 788 break; 789 case AVRCP_OPERATION_ID_DOWN: 790 printf("AVRCP Target : DOWN\n"); 791 break; 792 case AVRCP_OPERATION_ID_LEFT: 793 printf("AVRCP Target : LEFT\n"); 794 break; 795 case AVRCP_OPERATION_ID_RIGHT: 796 printf("AVRCP Target : RIGTH\n"); 797 break; 798 case AVRCP_OPERATION_ID_ROOT_MENU: 799 printf("AVRCP Target : ROOT_MENU\n"); 800 break; 801 default: 802 return; 803 } 804 break; 805 } 806 default: 807 printf("AVRCP Target : Event 0x%02x is not parsed\n", packet[2]); 808 break; 809 } 810 } 811 812 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 813 UNUSED(channel); 814 UNUSED(size); 815 if (packet_type != HCI_EVENT_PACKET) return; 816 if (hci_event_packet_get_type(packet) == HCI_EVENT_PIN_CODE_REQUEST) { 817 bd_addr_t address; 818 printf("Pin code request - using '0000'\n"); 819 hci_event_pin_code_request_get_bd_addr(packet, address); 820 gap_pin_code_response(address, "0000"); 821 } 822 } 823 824 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 825 UNUSED(channel); 826 UNUSED(size); 827 bd_addr_t address; 828 uint8_t status; 829 830 if (packet_type != HCI_EVENT_PACKET) return; 831 if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; 832 833 switch (packet[2]){ 834 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 835 printf("A2DP Sink : Received non SBC codec - not implemented\n"); 836 break; 837 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 838 printf("A2DP Sink : Received SBC codec configuration\n"); 839 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 840 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 841 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 842 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 843 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 844 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 845 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 846 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 847 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 848 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 849 dump_sbc_configuration(sbc_configuration); 850 851 if (sbc_configuration.reconfigure){ 852 media_processing_close(); 853 } 854 // prepare media processing 855 media_processing_init(sbc_configuration); 856 break; 857 } 858 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 859 a2dp_subevent_stream_established_get_bd_addr(packet, address); 860 status = a2dp_subevent_stream_established_get_status(packet); 861 862 if (status){ 863 printf("A2DP Sink : Streaming connection failed, status 0x%02x\n", status); 864 break; 865 } 866 867 a2dp_cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 868 memcpy(device_addr, address, 6); 869 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); 870 break; 871 872 case A2DP_SUBEVENT_STREAM_STARTED: 873 printf("A2DP Sink : Stream started\n"); 874 media_processing_start(); 875 break; 876 877 case A2DP_SUBEVENT_STREAM_SUSPENDED: 878 printf("A2DP Sink : Stream paused\n"); 879 media_processing_pause(); 880 break; 881 882 case A2DP_SUBEVENT_STREAM_RELEASED: 883 printf("A2DP Sink : Stream released\n"); 884 media_processing_close(); 885 break; 886 887 case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: 888 printf("A2DP Sink : Signaling connection released\n"); 889 media_processing_close(); 890 break; 891 892 default: 893 printf("A2DP Sink : Not parsed 0x%02x\n", packet[2]); 894 break; 895 } 896 } 897 898 #ifdef HAVE_BTSTACK_STDIN 899 static void show_usage(void){ 900 bd_addr_t iut_address; 901 gap_local_bd_addr(iut_address); 902 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 903 printf("b - AVDTP Sink create connection to addr %s\n", bd_addr_to_str(device_addr)); 904 printf("B - AVDTP Sink disconnect\n"); 905 printf("c - AVRCP create connection to addr %s\n", bd_addr_to_str(device_addr)); 906 printf("C - AVRCP disconnect\n"); 907 908 printf("w - delay report\n"); 909 910 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 911 printf("O - get play status\n"); 912 printf("j - get now playing info\n"); 913 printf("k - play\n"); 914 printf("K - stop\n"); 915 printf("L - pause\n"); 916 printf("u - start fast forward\n"); 917 printf("U - stop fast forward\n"); 918 printf("n - start rewind\n"); 919 printf("N - stop rewind\n"); 920 printf("i - forward\n"); 921 printf("I - backward\n"); 922 printf("M - mute\n"); 923 printf("r - skip\n"); 924 printf("q - query repeat and shuffle mode\n"); 925 printf("v - repeat single track\n"); 926 printf("x - repeat all tracks\n"); 927 printf("X - disable repeat mode\n"); 928 printf("z - shuffle all tracks\n"); 929 printf("Z - disable shuffle mode\n"); 930 931 printf("a/A - register/deregister TRACK_CHANGED\n"); 932 printf("R/P - register/deregister PLAYBACK_POS_CHANGED\n"); 933 934 printf("\n--- Volume Control ---\n"); 935 printf("t - volume up for 10 percent\n"); 936 printf("T - volume down for 10 percent\n"); 937 938 printf("---\n"); 939 } 940 #endif 941 942 #ifdef HAVE_BTSTACK_STDIN 943 static void stdin_process(char cmd){ 944 uint8_t status = ERROR_CODE_SUCCESS; 945 946 switch (cmd){ 947 case 'b': 948 status = a2dp_sink_establish_stream(device_addr, a2dp_local_seid, &a2dp_cid); 949 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); 950 break; 951 case 'B': 952 printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 953 status = avdtp_sink_disconnect(a2dp_cid); 954 break; 955 case 'c': 956 printf(" - Create AVRCP connection to addr %s.\n", bd_addr_to_str(device_addr)); 957 status = avrcp_connect(device_addr, &avrcp_cid); 958 break; 959 case 'C': 960 printf(" - AVRCP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 961 status = avrcp_disconnect(avrcp_cid); 962 break; 963 964 case '\n': 965 case '\r': 966 break; 967 case 'w': 968 printf("Send delay report\n"); 969 avdtp_sink_delay_report(a2dp_cid, a2dp_local_seid, 100); 970 break; 971 // Volume Control 972 case 't': 973 volume_percentage = volume_percentage <= 90 ? volume_percentage + 10 : 100; 974 printf(" - volume up for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 975 status = avrcp_target_volume_changed(avrcp_cid, volume_percentage * 127 / 100); 976 break; 977 case 'T': 978 volume_percentage = volume_percentage >= 10 ? volume_percentage - 10 : 0; 979 printf(" - volume down for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 980 status = avrcp_target_volume_changed(avrcp_cid, volume_percentage * 127 / 100); 981 break; 982 983 case 'O': 984 printf(" - get play status\n"); 985 status = avrcp_controller_get_play_status(avrcp_cid); 986 break; 987 case 'j': 988 printf(" - get now playing info\n"); 989 status = avrcp_controller_get_now_playing_info(avrcp_cid); 990 break; 991 case 'k': 992 printf(" - play\n"); 993 status = avrcp_controller_play(avrcp_cid); 994 break; 995 case 'K': 996 printf(" - stop\n"); 997 status = avrcp_controller_stop(avrcp_cid); 998 break; 999 case 'L': 1000 printf(" - pause\n"); 1001 status = avrcp_controller_pause(avrcp_cid); 1002 break; 1003 case 'u': 1004 printf(" - start fast forward\n"); 1005 status = avrcp_controller_press_and_hold_fast_forward(avrcp_cid); 1006 break; 1007 case 'U': 1008 printf(" - stop fast forward\n"); 1009 status = avrcp_controller_release_press_and_hold_cmd(avrcp_cid); 1010 break; 1011 case 'n': 1012 printf(" - start rewind\n"); 1013 status = avrcp_controller_press_and_hold_rewind(avrcp_cid); 1014 break; 1015 case 'N': 1016 printf(" - stop rewind\n"); 1017 status = avrcp_controller_release_press_and_hold_cmd(avrcp_cid); 1018 break; 1019 case 'i': 1020 printf(" - forward\n"); 1021 status = avrcp_controller_forward(avrcp_cid); 1022 break; 1023 case 'I': 1024 printf(" - backward\n"); 1025 status = avrcp_controller_backward(avrcp_cid); 1026 break; 1027 case 'M': 1028 printf(" - mute\n"); 1029 status = avrcp_controller_mute(avrcp_cid); 1030 break; 1031 case 'r': 1032 printf(" - skip\n"); 1033 status = avrcp_controller_skip(avrcp_cid); 1034 break; 1035 case 'q': 1036 printf(" - query repeat and shuffle mode\n"); 1037 status = avrcp_controller_query_shuffle_and_repeat_modes(avrcp_cid); 1038 break; 1039 case 'v': 1040 printf(" - repeat single track\n"); 1041 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 1042 break; 1043 case 'x': 1044 printf(" - repeat all tracks\n"); 1045 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 1046 break; 1047 case 'X': 1048 printf(" - disable repeat mode\n"); 1049 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_OFF); 1050 break; 1051 case 'z': 1052 printf(" - shuffle all tracks\n"); 1053 status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 1054 break; 1055 case 'Z': 1056 printf(" - disable shuffle mode\n"); 1057 status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_OFF); 1058 break; 1059 case 'a': 1060 printf("AVRCP: enable notification TRACK_CHANGED\n"); 1061 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1062 break; 1063 case 'A': 1064 printf("AVRCP: disable notification TRACK_CHANGED\n"); 1065 avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1066 break; 1067 case 'R': 1068 printf("AVRCP: enable notification PLAYBACK_POS_CHANGED\n"); 1069 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1070 break; 1071 case 'P': 1072 printf("AVRCP: disable notification PLAYBACK_POS_CHANGED\n"); 1073 avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1074 break; 1075 1076 default: 1077 show_usage(); 1078 return; 1079 } 1080 if (status != ERROR_CODE_SUCCESS){ 1081 printf("Could not perform command, status 0x%2x\n", status); 1082 } 1083 } 1084 #endif 1085 1086 int btstack_main(int argc, const char * argv[]); 1087 int btstack_main(int argc, const char * argv[]){ 1088 UNUSED(argc); 1089 (void)argv; 1090 1091 a2dp_and_avrcp_setup(); 1092 1093 #ifdef HAVE_BTSTACK_STDIN 1094 // parse human readable Bluetooth address 1095 sscanf_bd_addr(device_addr_string, device_addr); 1096 btstack_stdin_setup(stdin_process); 1097 #endif 1098 1099 // turn on! 1100 printf("Starting BTstack ...\n"); 1101 hci_power_control(HCI_POWER_ON); 1102 return 0; 1103 } 1104 /* EXAMPLE_END */