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_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_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_CONTROLLER_SUPPORTED_FEATURE_CATEGORY_PLAYER_OR_RECORDER); 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_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_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 #ifdef STORE_TO_SBC_FILE 458 fwrite(packet+pos, size-pos, 1, sbc_file); 459 #endif 460 461 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 462 // process data right away if there's no audio implementation active, e.g. on posix systems to store as .wav 463 if (!audio){ 464 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 465 return; 466 } 467 468 // store sbc frame size for buffer management 469 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 470 471 int status = btstack_ring_buffer_write(&sbc_frame_ring_buffer, packet+pos, size-pos); 472 if (status){ 473 printf("Error storing samples in SBC ring buffer!!!\n"); 474 } 475 476 // decide on audio sync drift based on number of sbc frames in queue 477 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) / sbc_frame_size; 478 uint32_t resampling_factor; 479 480 // nomimal factor (fixed-point 2^16) and compensation offset 481 uint32_t nomimal_factor = 0x0FF80; 482 uint32_t compensation = 0x00100; 483 484 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 485 resampling_factor = nomimal_factor - compensation; // stretch samples 486 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 487 resampling_factor = nomimal_factor; // nothing to do 488 } else { 489 resampling_factor = nomimal_factor + compensation; // compress samples 490 } 491 492 btstack_resample_set_factor(&resample_instance, resampling_factor); 493 494 // dump 495 // printf("%6u %03u %05x\n", (int) btstack_run_loop_get_time_ms(), sbc_frames_in_buffer, resampling_factor); 496 // log_info("%03u %05x", sbc_frames_in_buffer, 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 // 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); 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_controller_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 if (avrcp_controller_cid != 0 && avrcp_controller_cid != local_cid) { 582 printf("AVRCP Controller: Connection failed, expected 0x%02X cid, received 0x%02X\n", avrcp_controller_cid, local_cid); 583 return; 584 } 585 586 status = avrcp_subevent_connection_established_get_status(packet); 587 if (status != ERROR_CODE_SUCCESS){ 588 printf("AVRCP Controller: Connection failed: status 0x%02x\n", status); 589 avrcp_controller_cid = 0; 590 return; 591 } 592 593 avrcp_controller_cid = local_cid; 594 avrcp_connected = 1; 595 avrcp_subevent_connection_established_get_bd_addr(packet, adress); 596 printf("AVRCP Controller: Connected to %s, cid 0x%02x\n", bd_addr_to_str(adress), avrcp_controller_cid); 597 598 // automatically enable notifications 599 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 600 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 601 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 602 return; 603 } 604 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 605 printf("AVRCP Controller: Channel released: cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 606 avrcp_controller_cid = 0; 607 avrcp_connected = 0; 608 return; 609 default: 610 break; 611 } 612 613 status = packet[5]; 614 if (!avrcp_controller_cid) return; 615 616 // ignore INTERIM status 617 if (status == AVRCP_CTYPE_RESPONSE_INTERIM){ 618 switch (packet[2]){ 619 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED:{ 620 uint32_t playback_position_ms = avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet); 621 if (playback_position_ms == AVRCP_NO_TRACK_SELECTED_PLAYBACK_POSITION_CHANGED){ 622 printf("AVRCP Controller: playback position changed, no track is selected\n"); 623 } 624 break; 625 } 626 default: 627 break; 628 } 629 return; 630 } 631 632 memset(value, 0, sizeof(value)); 633 switch (packet[2]){ 634 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED: 635 printf("AVRCP Controller: Playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet)); 636 break; 637 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 638 printf("AVRCP Controller: Playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); 639 return; 640 case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: 641 printf("AVRCP Controller: Playing content changed\n"); 642 return; 643 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 644 printf("AVRCP Controller: Track changed\n"); 645 return; 646 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 647 printf("AVRCP Controller: Absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 648 return; 649 case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: 650 printf("AVRCP Controller: Changed\n"); 651 return; 652 case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ 653 uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); 654 uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); 655 printf("AVRCP Controller: %s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 656 break; 657 } 658 case AVRCP_SUBEVENT_NOW_PLAYING_TRACK_INFO: 659 printf("AVRCP Controller: Track: %d\n", avrcp_subevent_now_playing_track_info_get_track(packet)); 660 break; 661 662 case AVRCP_SUBEVENT_NOW_PLAYING_TOTAL_TRACKS_INFO: 663 printf("AVRCP Controller: Total Tracks: %d\n", avrcp_subevent_now_playing_total_tracks_info_get_total_tracks(packet)); 664 break; 665 666 case AVRCP_SUBEVENT_NOW_PLAYING_TITLE_INFO: 667 if (avrcp_subevent_now_playing_title_info_get_value_len(packet) > 0){ 668 memcpy(value, avrcp_subevent_now_playing_title_info_get_value(packet), avrcp_subevent_now_playing_title_info_get_value_len(packet)); 669 printf("AVRCP Controller: Title: %s\n", value); 670 } 671 break; 672 673 case AVRCP_SUBEVENT_NOW_PLAYING_ARTIST_INFO: 674 if (avrcp_subevent_now_playing_artist_info_get_value_len(packet) > 0){ 675 memcpy(value, avrcp_subevent_now_playing_artist_info_get_value(packet), avrcp_subevent_now_playing_artist_info_get_value_len(packet)); 676 printf("AVRCP Controller: Artist: %s\n", value); 677 } 678 break; 679 680 case AVRCP_SUBEVENT_NOW_PLAYING_ALBUM_INFO: 681 if (avrcp_subevent_now_playing_album_info_get_value_len(packet) > 0){ 682 memcpy(value, avrcp_subevent_now_playing_album_info_get_value(packet), avrcp_subevent_now_playing_album_info_get_value_len(packet)); 683 printf("AVRCP Controller: Album: %s\n", value); 684 } 685 break; 686 687 case AVRCP_SUBEVENT_NOW_PLAYING_GENRE_INFO: 688 if (avrcp_subevent_now_playing_genre_info_get_value_len(packet) > 0){ 689 memcpy(value, avrcp_subevent_now_playing_genre_info_get_value(packet), avrcp_subevent_now_playing_genre_info_get_value_len(packet)); 690 printf("AVRCP Controller: Genre: %s\n", value); 691 } 692 break; 693 694 case AVRCP_SUBEVENT_PLAY_STATUS: 695 printf("AVRCP Controller: Song length %"PRIu32" ms, Song position %"PRIu32" ms, Play status %s\n", 696 avrcp_subevent_play_status_get_song_length(packet), 697 avrcp_subevent_play_status_get_song_position(packet), 698 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 699 break; 700 701 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 702 printf("AVRCP Controller: %s done\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 703 break; 704 705 case AVRCP_SUBEVENT_OPERATION_START: 706 printf("AVRCP Controller: Start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 707 break; 708 709 default: 710 printf("AVRCP Controller: Event 0x%02x is not parsed\n", packet[2]); 711 break; 712 } 713 } 714 715 716 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 717 UNUSED(channel); 718 UNUSED(size); 719 bd_addr_t address; 720 uint16_t local_cid; 721 uint8_t status = ERROR_CODE_SUCCESS; 722 723 if (packet_type != HCI_EVENT_PACKET) return; 724 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 725 726 int volume; 727 728 switch (packet[2]){ 729 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 730 volume = avrcp_subevent_notification_volume_changed_get_absolute_volume(packet); 731 volume_percentage = volume * 100 / 127; 732 printf("AVRCP Target : Volume set to %d%% (%d)\n", volume_percentage, volume); 733 break; 734 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: 735 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 736 if (avrcp_target_cid != 0 && avrcp_target_cid != local_cid) { 737 printf("AVRCP Target : Connection failed, expected 0x%02X cid, received 0x%02X\n", avrcp_target_cid, local_cid); 738 return; 739 } 740 741 status = avrcp_subevent_connection_established_get_status(packet); 742 if (status != ERROR_CODE_SUCCESS){ 743 printf("AVRCP Target : Connection failed: status 0x%02x\n", status); 744 avrcp_target_cid = 0; 745 return; 746 } 747 avrcp_target_cid = local_cid; 748 avrcp_subevent_connection_established_get_bd_addr(packet, address); 749 printf("AVRCP Target : Connected to %s, cid 0x%02x\n", bd_addr_to_str(address), avrcp_target_cid); 750 break; 751 case AVRCP_SUBEVENT_EVENT_IDS_QUERY: 752 status = avrcp_target_supported_events(avrcp_target_cid, events_num, events, sizeof(events)); 753 break; 754 case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: 755 status = avrcp_target_supported_companies(avrcp_target_cid, companies_num, companies, sizeof(companies)); 756 break; 757 case AVRCP_SUBEVENT_OPERATION:{ 758 avrcp_operation_id_t operation_id = avrcp_subevent_operation_get_operation_id(packet); 759 // if (!media_tracker.connected) break; 760 switch (operation_id){ 761 case AVRCP_OPERATION_ID_PLAY: 762 printf("AVRCP Target : PLAY\n"); 763 break; 764 case AVRCP_OPERATION_ID_PAUSE: 765 printf("AVRCP Target : PAUSE\n"); 766 break; 767 case AVRCP_OPERATION_ID_STOP: 768 printf("AVRCP Target : STOP\n"); 769 break; 770 case AVRCP_OPERATION_ID_REWIND: 771 printf("AVRCP Target : REWIND\n"); 772 break; 773 case AVRCP_OPERATION_ID_FAST_FORWARD: 774 printf("AVRCP Target : FAST_FORWARD\n"); 775 break; 776 case AVRCP_OPERATION_ID_FORWARD: 777 printf("AVRCP Target : FORWARD\n"); 778 break; 779 case AVRCP_OPERATION_ID_BACKWARD: 780 printf("AVRCP Target : BACKWARD\n"); 781 break; 782 case AVRCP_OPERATION_ID_SKIP: 783 printf("AVRCP Target : SKIP\n"); 784 break; 785 case AVRCP_OPERATION_ID_MUTE: 786 printf("AVRCP Target : MUTE\n"); 787 break; 788 case AVRCP_OPERATION_ID_CHANNEL_UP: 789 printf("AVRCP Target : CHANNEL_UP\n"); 790 break; 791 case AVRCP_OPERATION_ID_CHANNEL_DOWN: 792 printf("AVRCP Target : CHANNEL_DOWN\n"); 793 break; 794 case AVRCP_OPERATION_ID_SELECT: 795 printf("AVRCP Target : SELECT\n"); 796 break; 797 case AVRCP_OPERATION_ID_UP: 798 printf("AVRCP Target : UP\n"); 799 break; 800 case AVRCP_OPERATION_ID_DOWN: 801 printf("AVRCP Target : DOWN\n"); 802 break; 803 case AVRCP_OPERATION_ID_LEFT: 804 printf("AVRCP Target : LEFT\n"); 805 break; 806 case AVRCP_OPERATION_ID_RIGHT: 807 printf("AVRCP Target : RIGTH\n"); 808 break; 809 case AVRCP_OPERATION_ID_ROOT_MENU: 810 printf("AVRCP Target : ROOT_MENU\n"); 811 break; 812 default: 813 return; 814 } 815 break; 816 } 817 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 818 printf("AVRCP Target : Disconnected, cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 819 return; 820 default: 821 printf("AVRCP Target : Event 0x%02x is not parsed\n", packet[2]); 822 break; 823 } 824 } 825 826 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 827 UNUSED(channel); 828 UNUSED(size); 829 if (packet_type != HCI_EVENT_PACKET) return; 830 if (hci_event_packet_get_type(packet) == HCI_EVENT_PIN_CODE_REQUEST) { 831 bd_addr_t address; 832 printf("Pin code request - using '0000'\n"); 833 hci_event_pin_code_request_get_bd_addr(packet, address); 834 gap_pin_code_response(address, "0000"); 835 } 836 } 837 838 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 839 UNUSED(channel); 840 UNUSED(size); 841 uint16_t cid; 842 bd_addr_t address; 843 uint8_t status; 844 845 if (packet_type != HCI_EVENT_PACKET) return; 846 if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; 847 848 switch (packet[2]){ 849 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 850 printf("A2DP Sink : Received non SBC codec - not implemented\n"); 851 break; 852 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 853 printf("A2DP Sink : Received SBC codec configuration\n"); 854 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 855 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 856 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 857 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 858 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 859 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 860 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 861 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 862 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 863 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 864 dump_sbc_configuration(sbc_configuration); 865 866 if (sbc_configuration.reconfigure){ 867 media_processing_close(); 868 } 869 // prepare media processing 870 media_processing_init(sbc_configuration); 871 break; 872 } 873 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 874 a2dp_subevent_stream_established_get_bd_addr(packet, address); 875 status = a2dp_subevent_stream_established_get_status(packet); 876 cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 877 if (!a2dp_cid){ 878 // incoming connection 879 a2dp_cid = cid; 880 } else if (cid != a2dp_cid) { 881 break; 882 } 883 if (status){ 884 printf("A2DP Sink : Streaming connection failed, status 0x%02x\n", status); 885 break; 886 } 887 888 memcpy(device_addr, address, 6); 889 a2dp_local_seid = a2dp_subevent_stream_established_get_local_seid(packet); 890 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); 891 break; 892 893 case A2DP_SUBEVENT_STREAM_STARTED: 894 cid = a2dp_subevent_stream_started_get_a2dp_cid(packet); 895 if (cid != a2dp_cid) break; 896 a2dp_local_seid = a2dp_subevent_stream_started_get_local_seid(packet); 897 printf("A2DP Sink : Stream started\n"); 898 media_processing_start(); 899 break; 900 901 case A2DP_SUBEVENT_STREAM_SUSPENDED: 902 cid = a2dp_subevent_stream_suspended_get_a2dp_cid(packet); 903 if (cid != a2dp_cid) break; 904 a2dp_local_seid = a2dp_subevent_stream_suspended_get_local_seid(packet); 905 printf("A2DP Sink : Stream paused\n"); 906 media_processing_pause(); 907 break; 908 909 case A2DP_SUBEVENT_STREAM_RELEASED: 910 a2dp_local_seid = a2dp_subevent_stream_released_get_local_seid(packet); 911 printf("A2DP Sink : Stream released\n"); 912 media_processing_close(); 913 break; 914 case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: 915 cid = a2dp_subevent_signaling_connection_released_get_a2dp_cid(packet); 916 printf("A2DP Sink : Signaling connection released\n"); 917 media_processing_close(); 918 break; 919 default: 920 printf("A2DP Sink : Not parsed 0x%02x\n", packet[2]); 921 break; 922 } 923 } 924 925 #ifdef HAVE_BTSTACK_STDIN 926 static void show_usage(void){ 927 bd_addr_t iut_address; 928 gap_local_bd_addr(iut_address); 929 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 930 printf("b - AVDTP Sink create connection to addr %s\n", bd_addr_to_str(device_addr)); 931 printf("B - AVDTP Sink disconnect\n"); 932 printf("c - AVRCP Controller create connection to addr %s\n", bd_addr_to_str(device_addr)); 933 printf("C - AVRCP Controller disconnect\n"); 934 printf("d - AVRCP Target create connection to addr %s\n", bd_addr_to_str(device_addr)); 935 printf("D - AVRCP Target disconnect\n"); 936 937 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 938 printf("O - get play status\n"); 939 printf("j - get now playing info\n"); 940 printf("k - play\n"); 941 printf("K - stop\n"); 942 printf("L - pause\n"); 943 printf("u - start fast forward\n"); 944 printf("U - stop fast forward\n"); 945 printf("n - start rewind\n"); 946 printf("N - stop rewind\n"); 947 printf("i - forward\n"); 948 printf("I - backward\n"); 949 printf("M - mute\n"); 950 printf("r - skip\n"); 951 printf("q - query repeat and shuffle mode\n"); 952 printf("v - repeat single track\n"); 953 printf("x - repeat all tracks\n"); 954 printf("X - disable repeat mode\n"); 955 printf("z - shuffle all tracks\n"); 956 printf("Z - disable shuffle mode\n"); 957 958 printf("a/A - register/deregister TRACK_CHANGED\n"); 959 printf("R/P - register/deregister PLAYBACK_POS_CHANGED\n"); 960 961 printf("\n--- Volume Control ---\n"); 962 printf("t - volume up for 10 percent\n"); 963 printf("T - volume down for 10 percent\n"); 964 965 printf("---\n"); 966 } 967 #endif 968 969 #ifdef HAVE_BTSTACK_STDIN 970 static void stdin_process(char cmd){ 971 uint8_t status = ERROR_CODE_SUCCESS; 972 973 switch (cmd){ 974 case 'b': 975 status = a2dp_sink_establish_stream(device_addr, a2dp_local_seid, &a2dp_cid); 976 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); 977 break; 978 case 'B': 979 printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 980 status = avdtp_sink_disconnect(a2dp_cid); 981 break; 982 case 'c': 983 printf(" - Create AVRCP Controller connection to addr %s.\n", bd_addr_to_str(device_addr)); 984 status = avrcp_controller_connect(device_addr, &avrcp_controller_cid); 985 break; 986 case 'C': 987 printf(" - AVRCP Controller disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 988 status = avrcp_controller_disconnect(avrcp_controller_cid); 989 break; 990 case 'd': 991 printf(" - Create AVRCP Target connection to addr %s.\n", bd_addr_to_str(device_addr)); 992 status = avrcp_target_connect(device_addr, &avrcp_target_cid); 993 break; 994 case 'D': 995 printf(" - AVRCP Target disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 996 status = avrcp_target_disconnect(avrcp_target_cid); 997 break; 998 999 case '\n': 1000 case '\r': 1001 break; 1002 // Volume Control 1003 case 't': 1004 volume_percentage = volume_percentage <= 90 ? volume_percentage + 10 : 100; 1005 printf(" - volume up for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 1006 status = avrcp_target_volume_changed(avrcp_target_cid, volume_percentage * 127 / 100); 1007 break; 1008 case 'T': 1009 volume_percentage = volume_percentage >= 10 ? volume_percentage - 10 : 0; 1010 printf(" - volume down for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 1011 status = avrcp_target_volume_changed(avrcp_target_cid, volume_percentage * 127 / 100); 1012 break; 1013 1014 case 'O': 1015 printf(" - get play status\n"); 1016 status = avrcp_controller_get_play_status(avrcp_controller_cid); 1017 break; 1018 case 'j': 1019 printf(" - get now playing info\n"); 1020 status = avrcp_controller_get_now_playing_info(avrcp_controller_cid); 1021 break; 1022 case 'k': 1023 printf(" - play\n"); 1024 status = avrcp_controller_play(avrcp_controller_cid); 1025 break; 1026 case 'K': 1027 printf(" - stop\n"); 1028 status = avrcp_controller_stop(avrcp_controller_cid); 1029 break; 1030 case 'L': 1031 printf(" - pause\n"); 1032 status = avrcp_controller_pause(avrcp_controller_cid); 1033 break; 1034 case 'u': 1035 printf(" - start fast forward\n"); 1036 status = avrcp_controller_press_and_hold_fast_forward(avrcp_controller_cid); 1037 break; 1038 case 'U': 1039 printf(" - stop fast forward\n"); 1040 status = avrcp_controller_release_press_and_hold_cmd(avrcp_controller_cid); 1041 break; 1042 case 'n': 1043 printf(" - start rewind\n"); 1044 status = avrcp_controller_press_and_hold_rewind(avrcp_controller_cid); 1045 break; 1046 case 'N': 1047 printf(" - stop rewind\n"); 1048 status = avrcp_controller_release_press_and_hold_cmd(avrcp_controller_cid); 1049 break; 1050 case 'i': 1051 printf(" - forward\n"); 1052 status = avrcp_controller_forward(avrcp_controller_cid); 1053 break; 1054 case 'I': 1055 printf(" - backward\n"); 1056 status = avrcp_controller_backward(avrcp_controller_cid); 1057 break; 1058 case 'M': 1059 printf(" - mute\n"); 1060 status = avrcp_controller_mute(avrcp_controller_cid); 1061 break; 1062 case 'r': 1063 printf(" - skip\n"); 1064 status = avrcp_controller_skip(avrcp_controller_cid); 1065 break; 1066 case 'q': 1067 printf(" - query repeat and shuffle mode\n"); 1068 status = avrcp_controller_query_shuffle_and_repeat_modes(avrcp_controller_cid); 1069 break; 1070 case 'v': 1071 printf(" - repeat single track\n"); 1072 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 1073 break; 1074 case 'x': 1075 printf(" - repeat all tracks\n"); 1076 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 1077 break; 1078 case 'X': 1079 printf(" - disable repeat mode\n"); 1080 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_OFF); 1081 break; 1082 case 'z': 1083 printf(" - shuffle all tracks\n"); 1084 status = avrcp_controller_set_shuffle_mode(avrcp_controller_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 1085 break; 1086 case 'Z': 1087 printf(" - disable shuffle mode\n"); 1088 status = avrcp_controller_set_shuffle_mode(avrcp_controller_cid, AVRCP_SHUFFLE_MODE_OFF); 1089 break; 1090 case 'a': 1091 printf("AVRCP: enable notification TRACK_CHANGED\n"); 1092 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1093 break; 1094 case 'A': 1095 printf("AVRCP: disable notification TRACK_CHANGED\n"); 1096 avrcp_controller_disable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1097 break; 1098 case 'R': 1099 printf("AVRCP: enable notification PLAYBACK_POS_CHANGED\n"); 1100 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1101 break; 1102 case 'P': 1103 printf("AVRCP: disable notification PLAYBACK_POS_CHANGED\n"); 1104 avrcp_controller_disable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1105 break; 1106 1107 default: 1108 show_usage(); 1109 return; 1110 } 1111 if (status != ERROR_CODE_SUCCESS){ 1112 printf("Could not perform command, status 0x%2x\n", status); 1113 } 1114 } 1115 #endif 1116 1117 int btstack_main(int argc, const char * argv[]); 1118 int btstack_main(int argc, const char * argv[]){ 1119 UNUSED(argc); 1120 (void)argv; 1121 1122 a2dp_and_avrcp_setup(); 1123 1124 #ifdef HAVE_BTSTACK_STDIN 1125 // parse human readable Bluetooth address 1126 sscanf_bd_addr(device_addr_string, device_addr); 1127 btstack_stdin_setup(stdin_process); 1128 #endif 1129 1130 // turn on! 1131 printf("Starting BTstack ...\n"); 1132 hci_power_control(HCI_POWER_ON); 1133 return 0; 1134 } 1135