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. 52 * 53 * @test To test with a remote device, e.g. a mobile phone, 54 * pair from the remote device with the demo, then start playing music on the remote device. 55 * Alternatively, set the device_addr_string to the Bluetooth address of your 56 * remote device in the code, and call connect from the UI. 57 * 58 * @test To controll the playback, tap SPACE on the console to show the available 59 * AVRCP commands. 60 */ 61 // ***************************************************************************** 62 63 #include <inttypes.h> 64 #include <stdint.h> 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include <string.h> 68 69 #include "btstack.h" 70 #include "btstack_resample.h" 71 72 //#define AVRCP_BROWSING_ENABLED 73 74 #ifdef HAVE_BTSTACK_STDIN 75 #include "btstack_stdin.h" 76 #endif 77 78 #include "btstack_ring_buffer.h" 79 80 #ifdef HAVE_POSIX_FILE_IO 81 #include "wav_util.h" 82 #define STORE_SBC_TO_SBC_FILE 83 #define STORE_TO_WAV_FILE 84 #endif 85 86 #define NUM_CHANNELS 2 87 #define BYTES_PER_FRAME (2*NUM_CHANNELS) 88 #define MAX_SBC_FRAME_SIZE 120 89 90 // SBC Decoder for WAV file or live playback 91 static btstack_sbc_decoder_state_t state; 92 static btstack_sbc_mode_t mode = SBC_MODE_STANDARD; 93 94 // ring buffer for SBC Frames 95 // below 30: add samples, 30-40: fine, above 40: drop samples 96 #define OPTIMAL_FRAMES_MIN 30 97 #define OPTIMAL_FRAMES_MAX 40 98 #define ADDITIONAL_FRAMES 20 99 static uint8_t sbc_frame_storage[(OPTIMAL_FRAMES_MAX + ADDITIONAL_FRAMES) * MAX_SBC_FRAME_SIZE]; 100 static btstack_ring_buffer_t sbc_frame_ring_buffer; 101 static unsigned int sbc_frame_size; 102 103 // rest buffer for not fully used sbc frames, with additional frames for resampling 104 static uint8_t decoded_audio_storage[(128+16) * BYTES_PER_FRAME]; 105 static btstack_ring_buffer_t decoded_audio_ring_buffer; 106 107 // 108 static int audio_stream_started; 109 110 // temp storage of lower-layer request 111 static int16_t * request_buffer; 112 static int request_frames; 113 114 #define STORE_FROM_PLAYBACK 115 116 // WAV File 117 #ifdef STORE_TO_WAV_FILE 118 static int frame_count = 0; 119 static char * wav_filename = "avdtp_sink.wav"; 120 #endif 121 122 #ifdef STORE_SBC_TO_SBC_FILE 123 static FILE * sbc_file; 124 static char * sbc_filename = "avdtp_sink.sbc"; 125 #endif 126 127 static int volume_percentage = 0; 128 129 typedef struct { 130 // bitmaps 131 uint8_t sampling_frequency_bitmap; 132 uint8_t channel_mode_bitmap; 133 uint8_t block_length_bitmap; 134 uint8_t subbands_bitmap; 135 uint8_t allocation_method_bitmap; 136 uint8_t min_bitpool_value; 137 uint8_t max_bitpool_value; 138 } adtvp_media_codec_information_sbc_t; 139 140 typedef struct { 141 int reconfigure; 142 int num_channels; 143 int sampling_frequency; 144 int channel_mode; 145 int block_length; 146 int subbands; 147 int allocation_method; 148 int min_bitpool_value; 149 int max_bitpool_value; 150 int frames_per_buffer; 151 } avdtp_media_codec_configuration_sbc_t; 152 153 static uint8_t events_num = 1; 154 155 static uint8_t events[] = { 156 AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED 157 }; 158 159 static uint8_t companies_num = 1; 160 static uint8_t companies[] = { 161 0x00, 0x19, 0x58 //BT SIG registered CompanyID 162 }; 163 #ifdef HAVE_BTSTACK_STDIN 164 // pts: static bd_addr_t remote = {0x00, 0x1B, 0xDC, 0x08, 0x0A, 0xA5}; 165 // mac 2013: static const char * device_addr_string = "84:38:35:65:d1:15"; 166 // iPhone 5S: 167 static const char * device_addr_string = "54:E4:3A:26:A2:39"; 168 #endif 169 170 static uint8_t sdp_avdtp_sink_service_buffer[150]; 171 static uint8_t sdp_avrcp_target_service_buffer[150]; 172 static avdtp_media_codec_configuration_sbc_t sbc_configuration; 173 static uint16_t a2dp_cid = 0; 174 static uint8_t a2dp_local_seid = 0; 175 static uint8_t value[100]; 176 177 static btstack_packet_callback_registration_t hci_event_callback_registration; 178 179 static int media_initialized = 0; 180 181 #ifdef HAVE_BTSTACK_STDIN 182 static bd_addr_t device_addr; 183 #endif 184 185 static uint16_t avrcp_controller_cid = 0; 186 static uint16_t avrcp_target_cid = 0; 187 static uint8_t avrcp_connected = 0; 188 static uint8_t sdp_avrcp_controller_service_buffer[200]; 189 190 static uint8_t media_sbc_codec_capabilities[] = { 191 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 192 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 193 2, 53 194 }; 195 196 static uint8_t media_sbc_codec_configuration[] = { 197 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 198 (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 199 2, 53 200 }; 201 202 static btstack_resample_t resample_instance; 203 204 /* @section Main Application Setup 205 * 206 * @text The Listing MainConfiguration shows how to setup AD2P Sink and AVRCP controller services. 207 * To announce A2DP Sink and AVRCP Controller services, you need to create corresponding 208 * SDP records and register them with the SDP service. 209 * You'll also need to register several packet handlers: 210 * - 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). 211 * - 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. 212 * - stdin_process callback - used to trigger AVRCP commands to the A2DP Source device, such are get now playing info, start, stop, volume control. Requires HAVE_BTSTACK_STDIN. 213 * - avrcp_controller_packet_handler - used to receive answers for AVRCP commands, 214 * 215 * @text Note, currently only the SBC codec is supported. 216 * If you want to store the audio data in a file, you'll need to define STORE_TO_WAV_FILE. 217 * 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. 218 * The initialization of the SBC decoder requires a callback that handles PCM data: 219 * - 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. 220 */ 221 222 /* LISTING_START(MainConfiguration): Setup Audio Sink and AVRCP Controller services */ 223 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size); 224 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 225 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 226 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 227 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size); 228 229 static int a2dp_and_avrcp_setup(void){ 230 231 l2cap_init(); 232 // Initialize AVDTP Sink 233 a2dp_sink_init(); 234 a2dp_sink_register_packet_handler(&a2dp_sink_packet_handler); 235 a2dp_sink_register_media_handler(&handle_l2cap_media_data_packet); 236 237 uint8_t status = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO, 238 AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities), 239 media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration), &a2dp_local_seid); 240 if (status != ERROR_CODE_SUCCESS){ 241 printf("A2DP Sink : not enough memory to create local stream endpoint\n"); 242 return 1; 243 } 244 // Initialize AVRCP Controller 245 avrcp_controller_init(); 246 avrcp_controller_register_packet_handler(&avrcp_controller_packet_handler); 247 248 // Initialize AVRCP Target 249 avrcp_target_init(); 250 avrcp_target_register_packet_handler(&avrcp_target_packet_handler); 251 252 // Initialize SDP 253 sdp_init(); 254 // setup AVDTP sink 255 memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer)); 256 a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, 1, NULL, NULL); 257 sdp_register_service(sdp_avdtp_sink_service_buffer); 258 259 // setup AVRCP Controller 260 memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); 261 uint16_t controller_supported_features = (1 << AVRCP_TARGET_SUPPORTED_FEATURE_CATEGORY_MONITOR_OR_AMPLIFIER); 262 #ifdef AVRCP_BROWSING_ENABLED 263 controller_supported_features |= (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_BROWSING); 264 #endif 265 avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10002, controller_supported_features, NULL, NULL); 266 sdp_register_service(sdp_avrcp_controller_service_buffer); 267 268 // setup AVRCP Target 269 memset(sdp_avrcp_target_service_buffer, 0, sizeof(sdp_avrcp_target_service_buffer)); 270 uint16_t target_supported_features = (1 << AVRCP_TARGET_SUPPORTED_FEATURE_CATEGORY_MONITOR_OR_AMPLIFIER); 271 avrcp_target_create_sdp_record(sdp_avrcp_target_service_buffer, 0x10003, target_supported_features, NULL, NULL); 272 sdp_register_service(sdp_avrcp_target_service_buffer); 273 274 gap_set_local_name("A2DP Sink Demo 00:00:00:00:00:00"); 275 gap_discoverable_control(1); 276 gap_set_class_of_device(0x200408); 277 278 /* Register for HCI events */ 279 hci_event_callback_registration.callback = &hci_packet_handler; 280 hci_add_event_handler(&hci_event_callback_registration); 281 282 #ifdef HAVE_POSIX_FILE_IO 283 if (!btstack_audio_sink_get_instance()){ 284 printf("No audio playback.\n"); 285 } else { 286 printf("Audio playback supported.\n"); 287 } 288 #ifdef STORE_TO_WAV_FILE 289 printf("Audio will be stored to \'%s\' file.\n", wav_filename); 290 #endif 291 #endif 292 return 0; 293 } 294 295 static void playback_handler(int16_t * buffer, uint16_t num_frames){ 296 297 #ifdef STORE_TO_WAV_FILE 298 int wav_samples = num_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_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_frames * BYTES_PER_FRAME, &bytes_read); 311 buffer += bytes_read / NUM_CHANNELS; 312 num_frames -= bytes_read / BYTES_PER_FRAME; 313 314 // then start decoding sbc frames using request_* globals 315 request_buffer = buffer; 316 request_frames = num_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 wav_writer_write_int16(wav_samples, wav_buffer); 326 #endif 327 } 328 329 static void handle_pcm_data(int16_t * data, int num_frames, int num_channels, int sample_rate, void * context){ 330 UNUSED(sample_rate); 331 UNUSED(context); 332 UNUSED(num_channels); // must be stereo == 2 333 334 const btstack_audio_sink_t * audio_sink = btstack_audio_sink_get_instance(); 335 if (!audio_sink){ 336 #ifdef STORE_TO_WAV_FILE 337 wav_writer_write_int16(num_frames * NUM_CHANNELS, data); 338 #endif 339 return; 340 } 341 342 // resample into request buffer - add some additional space for resampling 343 int16_t output_buffer[(128+16) * NUM_CHANNELS]; // 16 * 8 * 2 344 uint32_t resampled_frames = btstack_resample_block(&resample_instance, data, num_frames, output_buffer); 345 346 // store data in btstack_audio buffer first 347 int frames_to_copy = btstack_min(resampled_frames, request_frames); 348 memcpy(request_buffer, output_buffer, frames_to_copy * BYTES_PER_FRAME); 349 request_frames -= frames_to_copy; 350 request_buffer += frames_to_copy * NUM_CHANNELS; 351 352 // and rest in ring buffer 353 int frames_to_store = resampled_frames - frames_to_copy; 354 if (frames_to_store){ 355 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); 356 if (status){ 357 printf("Error storing samples in PCM ring buffer!!!\n"); 358 } 359 } 360 } 361 362 static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ 363 if (media_initialized) return 0; 364 365 btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); 366 367 #ifdef STORE_TO_WAV_FILE 368 wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); 369 #endif 370 371 #ifdef STORE_SBC_TO_SBC_FILE 372 sbc_file = fopen(sbc_filename, "wb"); 373 #endif 374 375 btstack_ring_buffer_init(&sbc_frame_ring_buffer, sbc_frame_storage, sizeof(sbc_frame_storage)); 376 btstack_ring_buffer_init(&decoded_audio_ring_buffer, decoded_audio_storage, sizeof(decoded_audio_storage)); 377 btstack_resample_init(&resample_instance, configuration.num_channels); 378 379 // setup audio playback 380 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 381 if (audio){ 382 audio->init(NUM_CHANNELS, configuration.sampling_frequency, &playback_handler); 383 } 384 385 audio_stream_started = 0; 386 media_initialized = 1; 387 return 0; 388 } 389 390 static void media_processing_start(void){ 391 if (!media_initialized) return; 392 // setup audio playback 393 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 394 if (audio){ 395 audio->start_stream(); 396 } 397 audio_stream_started = 1; 398 } 399 400 static void media_processing_pause(void){ 401 if (!media_initialized) return; 402 // stop audio playback 403 audio_stream_started = 0; 404 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 405 if (audio){ 406 audio->stop_stream(); 407 } 408 } 409 410 static void media_processing_close(void){ 411 if (!media_initialized) return; 412 media_initialized = 0; 413 audio_stream_started = 0; 414 sbc_frame_size = 0; 415 416 #ifdef STORE_TO_WAV_FILE 417 wav_writer_close(); 418 int total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; 419 420 printf("WAV Writer: Decoding done. Processed totaly %d frames:\n - %d good\n - %d bad\n", total_frames_nr, state.good_frames_nr, total_frames_nr - state.good_frames_nr); 421 printf("WAV Writer: Written %d frames to wav file: %s\n", frame_count, wav_filename); 422 #endif 423 424 #ifdef STORE_SBC_TO_SBC_FILE 425 fclose(sbc_file); 426 #endif 427 428 // stop audio playback 429 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 430 if (audio){ 431 printf("close stream\n"); 432 audio->close(); 433 } 434 } 435 436 /* @section Handle Media Data Packet 437 * 438 * @text Media data packets, in this case the audio data, are received through the handle_l2cap_media_data_packet callback. 439 * Currently, only the SBC media codec is supported. Hence, the media data consists of the media packet header and the SBC packet. 440 * 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) 441 * If the audio stream wasn't started already and there are enough SBC frames in the ring buffer, start playback. 442 */ 443 444 static int read_media_data_header(uint8_t * packet, int size, int * offset, avdtp_media_packet_header_t * media_header); 445 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header); 446 447 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size){ 448 UNUSED(seid); 449 int pos = 0; 450 451 avdtp_media_packet_header_t media_header; 452 if (!read_media_data_header(packet, size, &pos, &media_header)) return; 453 454 avdtp_sbc_codec_header_t sbc_header; 455 if (!read_sbc_header(packet, size, &pos, &sbc_header)) return; 456 457 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 458 459 // process data right away if there's no audio implementation active, e.g. on posix systems to store as .wav 460 if (!audio){ 461 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 462 return; 463 } 464 465 // store sbc frame size for buffer management 466 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 467 468 int status = btstack_ring_buffer_write(&sbc_frame_ring_buffer, packet+pos, size-pos); 469 if (status){ 470 printf("Error storing samples in SBC ring buffer!!!\n"); 471 } 472 473 // decide on audio sync drift based on number of sbc frames in queue 474 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) / sbc_frame_size; 475 uint32_t resampling_factor; 476 477 // nomimal factor (fixed-point 2^16) and compensation offset 478 uint32_t nomimal_factor = 0x0FF80; 479 uint32_t compensation = 0x00100; 480 481 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 482 resampling_factor = nomimal_factor - compensation; // stretch samples 483 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 484 resampling_factor = nomimal_factor; // nothing to do 485 } else { 486 resampling_factor = nomimal_factor + compensation; // compress samples 487 } 488 489 btstack_resample_set_factor(&resample_instance, resampling_factor); 490 491 // dump 492 // printf("%6u %03u %05x\n", (int) btstack_run_loop_get_time_ms(), sbc_frames_in_buffer, resampling_factor); 493 // log_info("%03u %05x", sbc_frames_in_buffer, resampling_factor); 494 495 #ifdef STORE_SBC_TO_SBC_FILE 496 fwrite(packet+pos, size-pos, 1, sbc_file); 497 #endif 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 // printf("SBC HEADER: num_frames %u, fragmented %u, start %u, stop %u\n", sbc_header.num_frames, sbc_header.fragmentation, sbc_header.starting_packet, sbc_header.last_packet); 524 *offset = pos; 525 return 1; 526 } 527 528 static int read_media_data_header(uint8_t *packet, int size, int *offset, avdtp_media_packet_header_t *media_header){ 529 int media_header_len = 12; // without crc 530 int pos = *offset; 531 532 if (size - pos < media_header_len){ 533 printf("Not enough data to read media packet header, expected %d, received %d\n", media_header_len, size-pos); 534 return 0; 535 } 536 537 media_header->version = packet[pos] & 0x03; 538 media_header->padding = get_bit16(packet[pos],2); 539 media_header->extension = get_bit16(packet[pos],3); 540 media_header->csrc_count = (packet[pos] >> 4) & 0x0F; 541 pos++; 542 543 media_header->marker = get_bit16(packet[pos],0); 544 media_header->payload_type = (packet[pos] >> 1) & 0x7F; 545 pos++; 546 547 media_header->sequence_number = big_endian_read_16(packet, pos); 548 pos+=2; 549 550 media_header->timestamp = big_endian_read_32(packet, pos); 551 pos+=4; 552 553 media_header->synchronization_source = big_endian_read_32(packet, pos); 554 pos+=4; 555 *offset = pos; 556 return 1; 557 } 558 559 static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ 560 printf(" - num_channels: %d\n", configuration.num_channels); 561 printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); 562 printf(" - channel_mode: %d\n", configuration.channel_mode); 563 printf(" - block_length: %d\n", configuration.block_length); 564 printf(" - subbands: %d\n", configuration.subbands); 565 printf(" - allocation_method: %d\n", configuration.allocation_method); 566 printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); 567 printf("\n"); 568 } 569 570 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 571 UNUSED(channel); 572 UNUSED(size); 573 uint16_t local_cid; 574 uint8_t status = 0xFF; 575 bd_addr_t adress; 576 577 if (packet_type != HCI_EVENT_PACKET) return; 578 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 579 switch (packet[2]){ 580 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 581 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 582 if (avrcp_controller_cid != 0 && avrcp_controller_cid != local_cid) { 583 printf("AVRCP Controller: Connection failed, expected 0x%02X cid, received 0x%02X\n", avrcp_controller_cid, local_cid); 584 return; 585 } 586 587 status = avrcp_subevent_connection_established_get_status(packet); 588 if (status != ERROR_CODE_SUCCESS){ 589 printf("AVRCP Controller: Connection failed: status 0x%02x\n", status); 590 avrcp_controller_cid = 0; 591 return; 592 } 593 594 avrcp_controller_cid = local_cid; 595 avrcp_connected = 1; 596 avrcp_subevent_connection_established_get_bd_addr(packet, adress); 597 printf("AVRCP Controller: Connected to %s, cid 0x%02x\n", bd_addr_to_str(adress), avrcp_controller_cid); 598 599 // automatically enable notifications 600 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 601 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 602 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 603 return; 604 } 605 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 606 printf("AVRCP Controller: Channel released: cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 607 avrcp_controller_cid = 0; 608 avrcp_connected = 0; 609 return; 610 default: 611 break; 612 } 613 614 status = packet[5]; 615 if (!avrcp_controller_cid) return; 616 617 // ignore INTERIM status 618 if (status == AVRCP_CTYPE_RESPONSE_INTERIM){ 619 switch (packet[2]){ 620 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED:{ 621 uint32_t playback_position_ms = avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet); 622 if (playback_position_ms == AVRCP_NO_TRACK_SELECTED_PLAYBACK_POSITION_CHANGED){ 623 printf("AVRCP Controller: playback position changed, no track is selected\n"); 624 } 625 break; 626 } 627 default: 628 break; 629 } 630 return; 631 } 632 633 memset(value, 0, sizeof(value)); 634 switch (packet[2]){ 635 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED: 636 printf("AVRCP Controller: Playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet)); 637 break; 638 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 639 printf("AVRCP Controller: Playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); 640 return; 641 case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: 642 printf("AVRCP Controller: Playing content changed\n"); 643 return; 644 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 645 printf("AVRCP Controller: Track changed\n"); 646 return; 647 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 648 printf("AVRCP Controller: Absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 649 return; 650 case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: 651 printf("AVRCP Controller: Changed\n"); 652 return; 653 case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ 654 uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); 655 uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); 656 printf("AVRCP Controller: %s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 657 break; 658 } 659 case AVRCP_SUBEVENT_NOW_PLAYING_TRACK_INFO: 660 printf("AVRCP Controller: Track: %d\n", avrcp_subevent_now_playing_track_info_get_track(packet)); 661 break; 662 663 case AVRCP_SUBEVENT_NOW_PLAYING_TOTAL_TRACKS_INFO: 664 printf("AVRCP Controller: Total Tracks: %d\n", avrcp_subevent_now_playing_total_tracks_info_get_total_tracks(packet)); 665 break; 666 667 case AVRCP_SUBEVENT_NOW_PLAYING_TITLE_INFO: 668 if (avrcp_subevent_now_playing_title_info_get_value_len(packet) > 0){ 669 memcpy(value, avrcp_subevent_now_playing_title_info_get_value(packet), avrcp_subevent_now_playing_title_info_get_value_len(packet)); 670 printf("AVRCP Controller: Title: %s\n", value); 671 } 672 break; 673 674 case AVRCP_SUBEVENT_NOW_PLAYING_ARTIST_INFO: 675 if (avrcp_subevent_now_playing_artist_info_get_value_len(packet) > 0){ 676 memcpy(value, avrcp_subevent_now_playing_artist_info_get_value(packet), avrcp_subevent_now_playing_artist_info_get_value_len(packet)); 677 printf("AVRCP Controller: Artist: %s\n", value); 678 } 679 break; 680 681 case AVRCP_SUBEVENT_NOW_PLAYING_ALBUM_INFO: 682 if (avrcp_subevent_now_playing_album_info_get_value_len(packet) > 0){ 683 memcpy(value, avrcp_subevent_now_playing_album_info_get_value(packet), avrcp_subevent_now_playing_album_info_get_value_len(packet)); 684 printf("AVRCP Controller: Album: %s\n", value); 685 } 686 break; 687 688 case AVRCP_SUBEVENT_NOW_PLAYING_GENRE_INFO: 689 if (avrcp_subevent_now_playing_genre_info_get_value_len(packet) > 0){ 690 memcpy(value, avrcp_subevent_now_playing_genre_info_get_value(packet), avrcp_subevent_now_playing_genre_info_get_value_len(packet)); 691 printf("AVRCP Controller: Genre: %s\n", value); 692 } 693 break; 694 695 case AVRCP_SUBEVENT_PLAY_STATUS: 696 printf("AVRCP Controller: Song length %"PRIu32" ms, Song position %"PRIu32" ms, Play status %s\n", 697 avrcp_subevent_play_status_get_song_length(packet), 698 avrcp_subevent_play_status_get_song_position(packet), 699 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 700 break; 701 702 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 703 printf("AVRCP Controller: %s done\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 704 break; 705 706 case AVRCP_SUBEVENT_OPERATION_START: 707 printf("AVRCP Controller: Start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 708 break; 709 710 default: 711 printf("AVRCP Controller: Event 0x%02x is not parsed\n", packet[2]); 712 break; 713 } 714 } 715 716 717 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 718 UNUSED(channel); 719 UNUSED(size); 720 bd_addr_t address; 721 uint16_t local_cid; 722 uint8_t status = ERROR_CODE_SUCCESS; 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 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: 736 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 737 if (avrcp_target_cid != 0 && avrcp_target_cid != local_cid) { 738 printf("AVRCP Target : Connection failed, expected 0x%02X cid, received 0x%02X\n", avrcp_target_cid, local_cid); 739 return; 740 } 741 742 status = avrcp_subevent_connection_established_get_status(packet); 743 if (status != ERROR_CODE_SUCCESS){ 744 printf("AVRCP Target : Connection failed: status 0x%02x\n", status); 745 avrcp_target_cid = 0; 746 return; 747 } 748 avrcp_target_cid = local_cid; 749 avrcp_subevent_connection_established_get_bd_addr(packet, address); 750 printf("AVRCP Target : Connected to %s, cid 0x%02x\n", bd_addr_to_str(address), avrcp_target_cid); 751 break; 752 case AVRCP_SUBEVENT_EVENT_IDS_QUERY: 753 status = avrcp_target_supported_events(avrcp_target_cid, events_num, events, sizeof(events)); 754 break; 755 case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: 756 status = avrcp_target_supported_companies(avrcp_target_cid, companies_num, companies, sizeof(companies)); 757 break; 758 case AVRCP_SUBEVENT_OPERATION:{ 759 avrcp_operation_id_t operation_id = avrcp_subevent_operation_get_operation_id(packet); 760 // if (!media_tracker.connected) break; 761 switch (operation_id){ 762 case AVRCP_OPERATION_ID_PLAY: 763 printf("AVRCP Target : PLAY\n"); 764 break; 765 case AVRCP_OPERATION_ID_PAUSE: 766 printf("AVRCP Target : PAUSE\n"); 767 break; 768 case AVRCP_OPERATION_ID_STOP: 769 printf("AVRCP Target : STOP\n"); 770 break; 771 case AVRCP_OPERATION_ID_REWIND: 772 printf("AVRCP Target : REWIND\n"); 773 break; 774 case AVRCP_OPERATION_ID_FAST_FORWARD: 775 printf("AVRCP Target : FAST_FORWARD\n"); 776 break; 777 case AVRCP_OPERATION_ID_FORWARD: 778 printf("AVRCP Target : FORWARD\n"); 779 break; 780 case AVRCP_OPERATION_ID_BACKWARD: 781 printf("AVRCP Target : BACKWARD\n"); 782 break; 783 case AVRCP_OPERATION_ID_SKIP: 784 printf("AVRCP Target : SKIP\n"); 785 break; 786 case AVRCP_OPERATION_ID_MUTE: 787 printf("AVRCP Target : MUTE\n"); 788 break; 789 case AVRCP_OPERATION_ID_CHANNEL_UP: 790 printf("AVRCP Target : CHANNEL_UP\n"); 791 break; 792 case AVRCP_OPERATION_ID_CHANNEL_DOWN: 793 printf("AVRCP Target : CHANNEL_DOWN\n"); 794 break; 795 case AVRCP_OPERATION_ID_SELECT: 796 printf("AVRCP Target : SELECT\n"); 797 break; 798 case AVRCP_OPERATION_ID_UP: 799 printf("AVRCP Target : UP\n"); 800 break; 801 case AVRCP_OPERATION_ID_DOWN: 802 printf("AVRCP Target : DOWN\n"); 803 break; 804 case AVRCP_OPERATION_ID_LEFT: 805 printf("AVRCP Target : LEFT\n"); 806 break; 807 case AVRCP_OPERATION_ID_RIGHT: 808 printf("AVRCP Target : RIGTH\n"); 809 break; 810 case AVRCP_OPERATION_ID_ROOT_MENU: 811 printf("AVRCP Target : ROOT_MENU\n"); 812 break; 813 default: 814 return; 815 } 816 break; 817 } 818 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 819 printf("AVRCP Target : Disconnected, cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 820 return; 821 default: 822 printf("AVRCP Target : Event 0x%02x is not parsed\n", packet[2]); 823 break; 824 } 825 } 826 827 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 828 UNUSED(channel); 829 UNUSED(size); 830 if (packet_type != HCI_EVENT_PACKET) return; 831 if (hci_event_packet_get_type(packet) == HCI_EVENT_PIN_CODE_REQUEST) { 832 bd_addr_t address; 833 printf("Pin code request - using '0000'\n"); 834 hci_event_pin_code_request_get_bd_addr(packet, address); 835 gap_pin_code_response(address, "0000"); 836 } 837 } 838 839 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 840 UNUSED(channel); 841 UNUSED(size); 842 uint16_t cid; 843 bd_addr_t address; 844 uint8_t status; 845 846 if (packet_type != HCI_EVENT_PACKET) return; 847 if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; 848 849 switch (packet[2]){ 850 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 851 printf("A2DP Sink : Received non SBC codec - not implemented\n"); 852 break; 853 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 854 printf("A2DP Sink : Received SBC codec configuration\n"); 855 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 856 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 857 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 858 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 859 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 860 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 861 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 862 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 863 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 864 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 865 dump_sbc_configuration(sbc_configuration); 866 867 if (sbc_configuration.reconfigure){ 868 media_processing_close(); 869 } 870 // prepare media processing 871 media_processing_init(sbc_configuration); 872 break; 873 } 874 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 875 a2dp_subevent_stream_established_get_bd_addr(packet, address); 876 status = a2dp_subevent_stream_established_get_status(packet); 877 cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 878 if (!a2dp_cid){ 879 // incoming connection 880 a2dp_cid = cid; 881 } else if (cid != a2dp_cid) { 882 break; 883 } 884 if (status){ 885 printf("A2DP Sink : Streaming connection failed, status 0x%02x\n", status); 886 break; 887 } 888 889 memcpy(device_addr, address, 6); 890 a2dp_local_seid = a2dp_subevent_stream_established_get_local_seid(packet); 891 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); 892 break; 893 894 case A2DP_SUBEVENT_STREAM_STARTED: 895 cid = a2dp_subevent_stream_started_get_a2dp_cid(packet); 896 if (cid != a2dp_cid) break; 897 a2dp_local_seid = a2dp_subevent_stream_started_get_local_seid(packet); 898 printf("A2DP Sink : Stream started\n"); 899 media_processing_start(); 900 break; 901 902 case A2DP_SUBEVENT_STREAM_SUSPENDED: 903 cid = a2dp_subevent_stream_suspended_get_a2dp_cid(packet); 904 if (cid != a2dp_cid) break; 905 a2dp_local_seid = a2dp_subevent_stream_suspended_get_local_seid(packet); 906 printf("A2DP Sink : Stream paused\n"); 907 media_processing_pause(); 908 break; 909 910 case A2DP_SUBEVENT_STREAM_RELEASED: 911 a2dp_local_seid = a2dp_subevent_stream_released_get_local_seid(packet); 912 printf("A2DP Sink : Stream released\n"); 913 media_processing_close(); 914 break; 915 case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: 916 cid = a2dp_subevent_signaling_connection_released_get_a2dp_cid(packet); 917 printf("A2DP Sink : Signaling connection released\n"); 918 media_processing_close(); 919 break; 920 default: 921 printf("A2DP Sink : Not parsed 0x%02x\n", packet[2]); 922 break; 923 } 924 } 925 926 #ifdef HAVE_BTSTACK_STDIN 927 static void show_usage(void){ 928 bd_addr_t iut_address; 929 gap_local_bd_addr(iut_address); 930 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 931 printf("b - AVDTP Sink create connection to addr %s\n", bd_addr_to_str(device_addr)); 932 printf("B - AVDTP Sink disconnect\n"); 933 printf("c - AVRCP Controller create connection to addr %s\n", bd_addr_to_str(device_addr)); 934 printf("C - AVRCP Controller disconnect\n"); 935 printf("d - AVRCP Target create connection to addr %s\n", bd_addr_to_str(device_addr)); 936 printf("D - AVRCP Target disconnect\n"); 937 938 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 939 printf("O - get play status\n"); 940 printf("j - get now playing info\n"); 941 printf("k - play\n"); 942 printf("K - stop\n"); 943 printf("L - pause\n"); 944 printf("u - start fast forward\n"); 945 printf("U - stop fast forward\n"); 946 printf("n - start rewind\n"); 947 printf("N - stop rewind\n"); 948 printf("i - forward\n"); 949 printf("I - backward\n"); 950 printf("M - mute\n"); 951 printf("r - skip\n"); 952 printf("q - query repeat and shuffle mode\n"); 953 printf("v - repeat single track\n"); 954 printf("x - repeat all tracks\n"); 955 printf("X - disable repeat mode\n"); 956 printf("z - shuffle all tracks\n"); 957 printf("Z - disable shuffle mode\n"); 958 959 printf("a/A - register/deregister TRACK_CHANGED\n"); 960 printf("R/P - register/deregister PLAYBACK_POS_CHANGED\n"); 961 962 printf("\n--- Volume Control ---\n"); 963 printf("t - volume up for 10 percent\n"); 964 printf("T - volume down for 10 percent\n"); 965 966 printf("---\n"); 967 } 968 #endif 969 970 #ifdef HAVE_BTSTACK_STDIN 971 static void stdin_process(char cmd){ 972 uint8_t status = ERROR_CODE_SUCCESS; 973 974 switch (cmd){ 975 case 'b': 976 status = a2dp_sink_establish_stream(device_addr, a2dp_local_seid, &a2dp_cid); 977 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); 978 break; 979 case 'B': 980 printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 981 status = avdtp_sink_disconnect(a2dp_cid); 982 break; 983 case 'c': 984 printf(" - Create AVRCP Controller connection to addr %s.\n", bd_addr_to_str(device_addr)); 985 status = avrcp_controller_connect(device_addr, &avrcp_controller_cid); 986 break; 987 case 'C': 988 printf(" - AVRCP Controller disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 989 status = avrcp_controller_disconnect(avrcp_controller_cid); 990 break; 991 case 'd': 992 printf(" - Create AVRCP Target connection to addr %s.\n", bd_addr_to_str(device_addr)); 993 status = avrcp_target_connect(device_addr, &avrcp_target_cid); 994 break; 995 case 'D': 996 printf(" - AVRCP Target disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 997 status = avrcp_target_disconnect(avrcp_target_cid); 998 break; 999 1000 case '\n': 1001 case '\r': 1002 break; 1003 // Volume Control 1004 case 't': 1005 volume_percentage = volume_percentage <= 90 ? volume_percentage + 10 : 100; 1006 printf(" - volume up for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 1007 status = avrcp_target_volume_changed(avrcp_target_cid, volume_percentage * 127 / 100); 1008 break; 1009 case 'T': 1010 volume_percentage = volume_percentage >= 10 ? volume_percentage - 10 : 0; 1011 printf(" - volume down for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 1012 status = avrcp_target_volume_changed(avrcp_target_cid, volume_percentage * 127 / 100); 1013 break; 1014 1015 case 'O': 1016 printf(" - get play status\n"); 1017 status = avrcp_controller_get_play_status(avrcp_controller_cid); 1018 break; 1019 case 'j': 1020 printf(" - get now playing info\n"); 1021 status = avrcp_controller_get_now_playing_info(avrcp_controller_cid); 1022 break; 1023 case 'k': 1024 printf(" - play\n"); 1025 status = avrcp_controller_play(avrcp_controller_cid); 1026 break; 1027 case 'K': 1028 printf(" - stop\n"); 1029 status = avrcp_controller_stop(avrcp_controller_cid); 1030 break; 1031 case 'L': 1032 printf(" - pause\n"); 1033 status = avrcp_controller_pause(avrcp_controller_cid); 1034 break; 1035 case 'u': 1036 printf(" - start fast forward\n"); 1037 status = avrcp_controller_press_and_hold_fast_forward(avrcp_controller_cid); 1038 break; 1039 case 'U': 1040 printf(" - stop fast forward\n"); 1041 status = avrcp_controller_release_press_and_hold_cmd(avrcp_controller_cid); 1042 break; 1043 case 'n': 1044 printf(" - start rewind\n"); 1045 status = avrcp_controller_press_and_hold_rewind(avrcp_controller_cid); 1046 break; 1047 case 'N': 1048 printf(" - stop rewind\n"); 1049 status = avrcp_controller_release_press_and_hold_cmd(avrcp_controller_cid); 1050 break; 1051 case 'i': 1052 printf(" - forward\n"); 1053 status = avrcp_controller_forward(avrcp_controller_cid); 1054 break; 1055 case 'I': 1056 printf(" - backward\n"); 1057 status = avrcp_controller_backward(avrcp_controller_cid); 1058 break; 1059 case 'M': 1060 printf(" - mute\n"); 1061 status = avrcp_controller_mute(avrcp_controller_cid); 1062 break; 1063 case 'r': 1064 printf(" - skip\n"); 1065 status = avrcp_controller_skip(avrcp_controller_cid); 1066 break; 1067 case 'q': 1068 printf(" - query repeat and shuffle mode\n"); 1069 status = avrcp_controller_query_shuffle_and_repeat_modes(avrcp_controller_cid); 1070 break; 1071 case 'v': 1072 printf(" - repeat single track\n"); 1073 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 1074 break; 1075 case 'x': 1076 printf(" - repeat all tracks\n"); 1077 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 1078 break; 1079 case 'X': 1080 printf(" - disable repeat mode\n"); 1081 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_OFF); 1082 break; 1083 case 'z': 1084 printf(" - shuffle all tracks\n"); 1085 status = avrcp_controller_set_shuffle_mode(avrcp_controller_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 1086 break; 1087 case 'Z': 1088 printf(" - disable shuffle mode\n"); 1089 status = avrcp_controller_set_shuffle_mode(avrcp_controller_cid, AVRCP_SHUFFLE_MODE_OFF); 1090 break; 1091 case 'a': 1092 printf("AVRCP: enable notification TRACK_CHANGED\n"); 1093 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1094 break; 1095 case 'A': 1096 printf("AVRCP: disable notification TRACK_CHANGED\n"); 1097 avrcp_controller_disable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1098 break; 1099 case 'R': 1100 printf("AVRCP: enable notification PLAYBACK_POS_CHANGED\n"); 1101 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1102 break; 1103 case 'P': 1104 printf("AVRCP: disable notification PLAYBACK_POS_CHANGED\n"); 1105 avrcp_controller_disable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1106 break; 1107 1108 default: 1109 show_usage(); 1110 return; 1111 } 1112 if (status != ERROR_CODE_SUCCESS){ 1113 printf("Could not perform command, status 0x%2x\n", status); 1114 } 1115 } 1116 #endif 1117 1118 int btstack_main(int argc, const char * argv[]); 1119 int btstack_main(int argc, const char * argv[]){ 1120 UNUSED(argc); 1121 (void)argv; 1122 1123 a2dp_and_avrcp_setup(); 1124 1125 #ifdef HAVE_BTSTACK_STDIN 1126 // parse human readable Bluetooth address 1127 sscanf_bd_addr(device_addr_string, device_addr); 1128 btstack_stdin_setup(stdin_process); 1129 #endif 1130 1131 // turn on! 1132 printf("Starting BTstack ...\n"); 1133 hci_power_control(HCI_POWER_ON); 1134 return 0; 1135 } 1136