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 39 #include <stdint.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 44 #include "btstack_config.h" 45 #include "btstack_debug.h" 46 #include "btstack_event.h" 47 #include "btstack_memory.h" 48 #include "btstack_run_loop.h" 49 #include "gap.h" 50 #include "hci.h" 51 #include "hci_cmd.h" 52 #include "hci_dump.h" 53 #include "l2cap.h" 54 #include "classic/avdtp_sink.h" 55 #include "classic/a2dp_sink.h" 56 #include "classic/btstack_sbc.h" 57 #include "classic/avdtp_util.h" 58 #include "classic/avrcp.h" 59 60 #define AVRCP_BROWSING_ENABLED 0 61 62 #ifdef HAVE_BTSTACK_STDIN 63 #include "btstack_stdin.h" 64 #endif 65 66 #ifdef HAVE_AUDIO_DMA 67 #include "btstack_ring_buffer.h" 68 #include "hal_audio_dma.h" 69 #endif 70 71 #ifdef HAVE_PORTAUDIO 72 #include "btstack_ring_buffer.h" 73 #include <portaudio.h> 74 #endif 75 76 #ifdef HAVE_POSIX_FILE_IO 77 #include "wav_util.h" 78 #define STORE_SBC_TO_SBC_FILE 79 #define STORE_SBC_TO_WAV_FILE 80 #endif 81 82 #if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) || defined(HAVE_AUDIO_DMA) 83 #define DECODE_SBC 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 PortAudio 91 #ifdef DECODE_SBC 92 static btstack_sbc_decoder_state_t state; 93 static btstack_sbc_mode_t mode = SBC_MODE_STANDARD; 94 #endif 95 96 #if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) 97 #define PREBUFFER_MS 200 98 static int audio_stream_started = 0; 99 static int audio_stream_paused = 0; 100 static btstack_ring_buffer_t ring_buffer; 101 #endif 102 103 #ifdef HAVE_AUDIO_DMA 104 // below 30: add samples, 30-40: fine, above 40: drop samples 105 #define OPTIMAL_FRAMES_MIN 30 106 #define OPTIMAL_FRAMES_MAX 40 107 #define ADDITIONAL_FRAMES 10 108 #define DMA_AUDIO_FRAMES 128 109 #define DMA_MAX_FILL_FRAMES 1 110 #define NUM_AUDIO_BUFFERS 2 111 112 static uint16_t audio_samples[(DMA_AUDIO_FRAMES + DMA_MAX_FILL_FRAMES)*2*NUM_AUDIO_BUFFERS]; 113 static uint16_t audio_samples_len[NUM_AUDIO_BUFFERS]; 114 static uint8_t ring_buffer_storage[(OPTIMAL_FRAMES_MAX + ADDITIONAL_FRAMES) * MAX_SBC_FRAME_SIZE]; 115 static const uint16_t silent_buffer[DMA_AUDIO_FRAMES*2]; 116 static volatile int playback_buffer; 117 static int write_buffer; 118 static uint8_t sbc_frame_size; 119 static int sbc_samples_fix; 120 #endif 121 122 // PortAdudio - live playback 123 #ifdef HAVE_PORTAUDIO 124 #define PA_SAMPLE_TYPE paInt16 125 #define SAMPLE_RATE 48000 126 #define FRAMES_PER_BUFFER 128 127 #define PREBUFFER_BYTES (PREBUFFER_MS*SAMPLE_RATE/1000*BYTES_PER_FRAME) 128 static PaStream * stream; 129 static uint8_t ring_buffer_storage[2*PREBUFFER_BYTES]; 130 static btstack_ring_buffer_t ring_buffer; 131 static int total_num_samples = 0; 132 #endif 133 134 // WAV File 135 #ifdef STORE_SBC_TO_WAV_FILE 136 static int frame_count = 0; 137 static char * wav_filename = "avdtp_sink.wav"; 138 #endif 139 140 #ifdef STORE_SBC_TO_SBC_FILE 141 static FILE * sbc_file; 142 static char * sbc_filename = "avdtp_sink.sbc"; 143 #endif 144 145 typedef struct { 146 // bitmaps 147 uint8_t sampling_frequency_bitmap; 148 uint8_t channel_mode_bitmap; 149 uint8_t block_length_bitmap; 150 uint8_t subbands_bitmap; 151 uint8_t allocation_method_bitmap; 152 uint8_t min_bitpool_value; 153 uint8_t max_bitpool_value; 154 } adtvp_media_codec_information_sbc_t; 155 156 typedef struct { 157 int reconfigure; 158 int num_channels; 159 int sampling_frequency; 160 int channel_mode; 161 int block_length; 162 int subbands; 163 int allocation_method; 164 int min_bitpool_value; 165 int max_bitpool_value; 166 int frames_per_buffer; 167 } avdtp_media_codec_configuration_sbc_t; 168 169 #ifdef HAVE_BTSTACK_STDIN 170 // mac 2011: static bd_addr_t remote = {0x04, 0x0C, 0xCE, 0xE4, 0x85, 0xD3}; 171 // pts: static bd_addr_t remote = {0x00, 0x1B, 0xDC, 0x08, 0x0A, 0xA5}; 172 // mac 2013: 173 // mac 2013: 174 static const char * device_addr_string = "84:38:35:65:d1:15"; 175 // iPhone 5S: static const char * device_addr_string = "54:E4:3A:26:A2:39"; 176 #endif 177 178 // bt dongle: -u 02-02 static bd_addr_t remote = {0x00, 0x02, 0x72, 0xDC, 0x31, 0xC1}; 179 180 static uint16_t a2dp_cid = 0; 181 static uint8_t sdp_avdtp_sink_service_buffer[150]; 182 #ifdef HAVE_BTSTACK_STDIN 183 static avdtp_sep_t sep; 184 #endif 185 186 static avdtp_media_codec_configuration_sbc_t sbc_configuration; 187 188 static uint8_t local_seid = 0; 189 190 typedef enum { 191 AVDTP_APPLICATION_IDLE, 192 AVDTP_APPLICATION_CONNECTED, 193 AVDTP_APPLICATION_STREAMING 194 } avdtp_application_state_t; 195 196 avdtp_application_state_t app_state = AVDTP_APPLICATION_IDLE; 197 198 static btstack_packet_callback_registration_t hci_event_callback_registration; 199 200 static int media_initialized = 0; 201 202 #ifdef HAVE_BTSTACK_STDIN 203 static bd_addr_t device_addr; 204 #endif 205 206 static uint16_t avrcp_cid = 0; 207 static uint8_t sdp_avrcp_controller_service_buffer[200]; 208 209 #ifdef HAVE_PORTAUDIO 210 static int patestCallback( const void *inputBuffer, void *outputBuffer, 211 unsigned long framesPerBuffer, 212 const PaStreamCallbackTimeInfo* timeInfo, 213 PaStreamCallbackFlags statusFlags, 214 void *userData ) { 215 216 /** patestCallback is called from different thread, don't use hci_dump / log_info here without additional checks */ 217 218 (void) timeInfo; /* Prevent unused variable warnings. */ 219 (void) statusFlags; 220 (void) inputBuffer; 221 (void) userData; 222 223 int bytes_to_copy = framesPerBuffer * BYTES_PER_FRAME; 224 225 // fill with silence while paused 226 if (audio_stream_paused){ 227 228 if (btstack_ring_buffer_bytes_available(&ring_buffer) < PREBUFFER_BYTES){ 229 // printf("PA: silence\n"); 230 memset(outputBuffer, 0, bytes_to_copy); 231 return 0; 232 } else { 233 // resume playback 234 audio_stream_paused = 0; 235 } 236 } 237 238 // get data from ringbuffer 239 uint32_t bytes_read = 0; 240 btstack_ring_buffer_read(&ring_buffer, outputBuffer, bytes_to_copy, &bytes_read); 241 bytes_to_copy -= bytes_read; 242 243 // fill with 0 if not enough 244 if (bytes_to_copy){ 245 memset(outputBuffer + bytes_read, 0, bytes_to_copy); 246 audio_stream_paused = 1; 247 } 248 return 0; 249 } 250 #endif 251 252 #ifdef HAVE_AUDIO_DMA 253 static int next_buffer(int current){ 254 if (current == NUM_AUDIO_BUFFERS-1) return 0; 255 return current + 1; 256 } 257 static uint8_t * start_of_buffer(int num){ 258 return (uint8_t *) &audio_samples[num * DMA_AUDIO_FRAMES * 2]; 259 } 260 void hal_audio_dma_done(void){ 261 if (audio_stream_paused){ 262 hal_audio_dma_play((const uint8_t *) silent_buffer, DMA_AUDIO_FRAMES*4); 263 return; 264 } 265 // next buffer 266 int next_playback_buffer = next_buffer(playback_buffer); 267 uint8_t * playback_data; 268 if (next_playback_buffer == write_buffer){ 269 270 // TODO: stop codec while playing silence when getting 'stream paused' 271 272 // start playing silence 273 audio_stream_paused = 1; 274 hal_audio_dma_play((const uint8_t *) silent_buffer, DMA_AUDIO_FRAMES*4); 275 printf("%6u - paused - bytes in buffer %u\n", (int) btstack_run_loop_get_time_ms(), btstack_ring_buffer_bytes_available(&ring_buffer)); 276 return; 277 } 278 playback_buffer = next_playback_buffer; 279 playback_data = start_of_buffer(playback_buffer); 280 hal_audio_dma_play(playback_data, audio_samples_len[playback_buffer]); 281 // btstack_run_loop_embedded_trigger(); 282 } 283 #endif 284 285 #if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) 286 287 static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){ 288 UNUSED(sample_rate); 289 UNUSED(context); 290 291 #ifdef STORE_SBC_TO_WAV_FILE 292 wav_writer_write_int16(num_samples*num_channels, data); 293 frame_count++; 294 #endif 295 296 #ifdef HAVE_PORTAUDIO 297 total_num_samples+=num_samples*num_channels; 298 299 // store pcm samples in ringbuffer 300 btstack_ring_buffer_write(&ring_buffer, (uint8_t *)data, num_samples*num_channels*2); 301 302 if (!audio_stream_started){ 303 audio_stream_paused = 1; 304 /* -- start stream -- */ 305 PaError err = Pa_StartStream(stream); 306 if (err != paNoError){ 307 printf("Error starting the stream: \"%s\"\n", Pa_GetErrorText(err)); 308 return; 309 } 310 audio_stream_started = 1; 311 } 312 #endif 313 314 } 315 #endif 316 317 318 #ifdef HAVE_AUDIO_DMA 319 320 static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){ 321 UNUSED(sample_rate); 322 UNUSED(context); 323 total_num_samples+=num_samples*num_channels; 324 325 // store in ring buffer 326 uint8_t * write_data = start_of_buffer(write_buffer); 327 uint16_t len = num_samples*num_channels*2; 328 memcpy(write_data, data, len); 329 audio_samples_len[write_buffer] = len; 330 331 // add/drop audio frame to fix drift 332 if (sbc_samples_fix > 0){ 333 memcpy(write_data + len, write_data + len - 4, 4); 334 audio_samples_len[write_buffer] += 4; 335 } 336 if (sbc_samples_fix < 0){ 337 audio_samples_len[write_buffer] -= 4; 338 } 339 340 write_buffer = next_buffer(write_buffer); 341 } 342 343 static void hal_audio_dma_process(btstack_data_source_t * ds, btstack_data_source_callback_type_t callback_type){ 344 UNUSED(ds); 345 UNUSED(callback_type); 346 347 if (!media_initialized) return; 348 349 int trigger_resume = 0; 350 if (audio_stream_paused) { 351 if (sbc_frame_size && btstack_ring_buffer_bytes_available(&ring_buffer) >= OPTIMAL_FRAMES_MIN * sbc_frame_size){ 352 trigger_resume = 1; 353 // reset buffers 354 playback_buffer = NUM_AUDIO_BUFFERS - 1; 355 write_buffer = 0; 356 } else { 357 return; 358 } 359 } 360 361 while (playback_buffer != write_buffer && btstack_ring_buffer_bytes_available(&ring_buffer) >= sbc_frame_size ){ 362 uint8_t frame[MAX_SBC_FRAME_SIZE]; 363 uint32_t bytes_read = 0; 364 btstack_ring_buffer_read(&ring_buffer, frame, sbc_frame_size, &bytes_read); 365 btstack_sbc_decoder_process_data(&state, 0, frame, sbc_frame_size); 366 } 367 368 if (trigger_resume){ 369 printf("%6u - resume\n", (int) btstack_run_loop_get_time_ms()); 370 audio_stream_paused = 0; 371 } 372 } 373 374 #endif 375 376 static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ 377 378 if (media_initialized) return 0; 379 380 #ifdef DECODE_SBC 381 btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); 382 #endif 383 384 #ifdef STORE_SBC_TO_WAV_FILE 385 wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); 386 #endif 387 388 #ifdef STORE_SBC_TO_SBC_FILE 389 sbc_file = fopen(sbc_filename, "wb"); 390 #endif 391 392 #ifdef HAVE_PORTAUDIO 393 // int frames_per_buffer = configuration.frames_per_buffer; 394 PaError err; 395 PaStreamParameters outputParameters; 396 const PaDeviceInfo *deviceInfo; 397 398 /* -- initialize PortAudio -- */ 399 err = Pa_Initialize(); 400 if (err != paNoError){ 401 printf("Error initializing portaudio: \"%s\"\n", Pa_GetErrorText(err)); 402 return err; 403 } 404 /* -- setup input and output -- */ 405 outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */ 406 outputParameters.channelCount = configuration.num_channels; 407 outputParameters.sampleFormat = PA_SAMPLE_TYPE; 408 outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultHighOutputLatency; 409 outputParameters.hostApiSpecificStreamInfo = NULL; 410 deviceInfo = Pa_GetDeviceInfo( outputParameters.device ); 411 printf("PortAudio: Output device: %s\n", deviceInfo->name); 412 log_info("PortAudio: Output device: %s", deviceInfo->name); 413 /* -- setup stream -- */ 414 err = Pa_OpenStream( 415 &stream, 416 NULL, /* &inputParameters */ 417 &outputParameters, 418 configuration.sampling_frequency, 419 0, 420 paClipOff, /* we won't output out of range samples so don't bother clipping them */ 421 patestCallback, /* use callback */ 422 NULL ); 423 424 if (err != paNoError){ 425 printf("Error initializing portaudio: \"%s\"\n", Pa_GetErrorText(err)); 426 return err; 427 } 428 log_info("PortAudio: stream opened"); 429 printf("PortAudio: stream opened\n"); 430 #endif 431 #ifdef HAVE_AUDIO_DMA 432 audio_stream_paused = 1; 433 hal_audio_dma_init(configuration.sampling_frequency); 434 hal_audio_dma_set_audio_played(&hal_audio_dma_done); 435 // start playing silence 436 hal_audio_dma_done(); 437 #endif 438 439 #if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) 440 memset(ring_buffer_storage, 0, sizeof(ring_buffer_storage)); 441 btstack_ring_buffer_init(&ring_buffer, ring_buffer_storage, sizeof(ring_buffer_storage)); 442 audio_stream_started = 0; 443 #endif 444 media_initialized = 1; 445 return 0; 446 } 447 448 static void media_processing_close(void){ 449 if (!media_initialized) return; 450 media_initialized = 0; 451 452 #ifdef STORE_SBC_TO_WAV_FILE 453 printf("WAV Writer: close file.\n"); 454 wav_writer_close(); 455 int total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; 456 457 printf("WAV Writer: Decoding done. Processed totaly %d frames:\n - %d good\n - %d bad\n - %d zero frames\n", total_frames_nr, state.good_frames_nr, state.bad_frames_nr, state.zero_frames_nr); 458 printf("WAV Writer: Written %d frames to wav file: %s\n", frame_count, wav_filename); 459 #endif 460 461 #ifdef STORE_SBC_TO_SBC_FILE 462 fclose(sbc_file); 463 #endif 464 465 #if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) 466 audio_stream_started = 0; 467 #endif 468 469 #ifdef HAVE_PORTAUDIO 470 printf("PortAudio: Steram closed\n"); 471 log_info("PortAudio: Stream closed"); 472 473 PaError err = Pa_StopStream(stream); 474 if (err != paNoError){ 475 printf("Error stopping the stream: \"%s\"\n", Pa_GetErrorText(err)); 476 log_error("Error stopping the stream: \"%s\"", Pa_GetErrorText(err)); 477 return; 478 } 479 err = Pa_CloseStream(stream); 480 if (err != paNoError){ 481 printf("Error closing the stream: \"%s\"\n", Pa_GetErrorText(err)); 482 log_error("Error closing the stream: \"%s\"", Pa_GetErrorText(err)); 483 return; 484 } 485 err = Pa_Terminate(); 486 if (err != paNoError){ 487 printf("Error terminating portaudio: \"%s\"\n", Pa_GetErrorText(err)); 488 log_error("Error terminating portaudio: \"%s\"", Pa_GetErrorText(err)); 489 return; 490 } 491 #endif 492 493 #ifdef HAVE_AUDIO_DMA 494 hal_audio_dma_close(); 495 #endif 496 } 497 498 static void handle_l2cap_media_data_packet(avdtp_stream_endpoint_t * stream_endpoint, uint8_t *packet, uint16_t size){ 499 500 UNUSED(stream_endpoint); 501 502 int pos = 0; 503 504 avdtp_media_packet_header_t media_header; 505 media_header.version = packet[pos] & 0x03; 506 media_header.padding = get_bit16(packet[pos],2); 507 media_header.extension = get_bit16(packet[pos],3); 508 media_header.csrc_count = (packet[pos] >> 4) & 0x0F; 509 510 pos++; 511 512 media_header.marker = get_bit16(packet[pos],0); 513 media_header.payload_type = (packet[pos] >> 1) & 0x7F; 514 pos++; 515 516 media_header.sequence_number = big_endian_read_16(packet, pos); 517 pos+=2; 518 519 media_header.timestamp = big_endian_read_32(packet, pos); 520 pos+=4; 521 522 media_header.synchronization_source = big_endian_read_32(packet, pos); 523 pos+=4; 524 525 UNUSED(media_header); 526 527 // TODO: read csrc list 528 529 // printf_hexdump( packet, pos ); 530 // printf("MEDIA HEADER: %u timestamp, version %u, padding %u, extension %u, csrc_count %u\n", 531 // media_header.timestamp, media_header.version, media_header.padding, media_header.extension, media_header.csrc_count); 532 // printf("MEDIA HEADER: marker %02x, payload_type %02x, sequence_number %u, synchronization_source %u\n", 533 // media_header.marker, media_header.payload_type, media_header.sequence_number, media_header.synchronization_source); 534 535 avdtp_sbc_codec_header_t sbc_header; 536 sbc_header.fragmentation = get_bit16(packet[pos], 7); 537 sbc_header.starting_packet = get_bit16(packet[pos], 6); 538 sbc_header.last_packet = get_bit16(packet[pos], 5); 539 sbc_header.num_frames = packet[pos] & 0x0f; 540 pos++; 541 542 #ifdef HAVE_AUDIO_DMA 543 // store sbc frame size for buffer management 544 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 545 #endif 546 547 UNUSED(sbc_header); 548 // 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); 549 // printf_hexdump( packet+pos, size-pos ); 550 551 #if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) 552 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 553 #endif 554 555 #ifdef HAVE_AUDIO_DMA 556 btstack_ring_buffer_write(&ring_buffer, packet+pos, size-pos); 557 558 // decide on audio sync drift based on number of sbc frames in queue 559 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&ring_buffer) / sbc_frame_size; 560 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 561 sbc_samples_fix = 1; // duplicate last sample 562 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 563 sbc_samples_fix = 0; // nothing to do 564 } else { 565 sbc_samples_fix = -1; // drop last sample 566 } 567 568 // dump 569 printf("%6u %03u %d\n", (int) btstack_run_loop_get_time_ms(), sbc_frames_in_buffer, sbc_samples_fix); 570 571 #endif 572 573 #ifdef STORE_SBC_TO_SBC_FILE 574 fwrite(packet+pos, size-pos, 1, sbc_file); 575 #endif 576 } 577 578 static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ 579 printf(" -- a2dp sink demo: Received media codec configuration:\n"); 580 printf(" - num_channels: %d\n", configuration.num_channels); 581 printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); 582 printf(" - channel_mode: %d\n", configuration.channel_mode); 583 printf(" - block_length: %d\n", configuration.block_length); 584 printf(" - subbands: %d\n", configuration.subbands); 585 printf(" - allocation_method: %d\n", configuration.allocation_method); 586 printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); 587 printf("\n"); 588 } 589 590 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 591 UNUSED(channel); 592 UNUSED(size); 593 bd_addr_t event_addr; 594 uint16_t local_cid; 595 uint8_t status = 0xFF; 596 switch (packet_type) { 597 case HCI_EVENT_PACKET: 598 switch (hci_event_packet_get_type(packet)) { 599 case HCI_EVENT_DISCONNECTION_COMPLETE: 600 // connection closed -> quit test app 601 printf("AVRCP: HCI_EVENT_DISCONNECTION_COMPLETE\n"); 602 break; 603 case HCI_EVENT_AVRCP_META: 604 switch (packet[2]){ 605 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 606 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 607 if (avrcp_cid != local_cid) { 608 printf("AVRCP Connection failed, expected 0x%02X l2cap cid, received 0x%02X\n", avrcp_cid, local_cid); 609 return; 610 } 611 612 status = avrcp_subevent_connection_established_get_status(packet); 613 if (status != ERROR_CODE_SUCCESS){ 614 printf("AVRCP Connection failed: status 0x%02x\n", status); 615 avrcp_cid = 0; 616 return; 617 } 618 avrcp_subevent_connection_established_get_bd_addr(packet, event_addr); 619 printf("Channel successfully opened: %s, avrcp_cid 0x%02x\n", bd_addr_to_str(event_addr), avrcp_cid); 620 621 // automatically enable notifications 622 avrcp_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 623 avrcp_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 624 return; 625 } 626 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 627 printf("Channel released: avrcp_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 628 avrcp_cid = 0; 629 return; 630 default: 631 break; 632 } 633 634 status = packet[5]; 635 if (!avrcp_cid) return; 636 637 // avoid printing INTERIM status 638 if (status == AVRCP_CTYPE_RESPONSE_INTERIM) return; 639 640 printf("AVRCP: command status: %s, ", avrcp_ctype2str(status)); 641 switch (packet[2]){ 642 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 643 printf("notification, 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("notification, playing content changed\n"); 647 return; 648 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 649 printf("notification track changed\n"); 650 return; 651 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 652 printf("notification 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("notification 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("%s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 661 break; 662 } 663 case AVRCP_SUBEVENT_NOW_PLAYING_INFO:{ 664 uint8_t value[100]; 665 printf("now playing: \n"); 666 if (avrcp_subevent_now_playing_info_get_title_len(packet) > 0){ 667 memcpy(value, avrcp_subevent_now_playing_info_get_title(packet), avrcp_subevent_now_playing_info_get_title_len(packet)); 668 printf(" Title: %s\n", value); 669 } 670 if (avrcp_subevent_now_playing_info_get_album_len(packet) > 0){ 671 memcpy(value, avrcp_subevent_now_playing_info_get_album(packet), avrcp_subevent_now_playing_info_get_album_len(packet)); 672 printf(" Album: %s\n", value); 673 } 674 if (avrcp_subevent_now_playing_info_get_artist_len(packet) > 0){ 675 memcpy(value, avrcp_subevent_now_playing_info_get_artist(packet), avrcp_subevent_now_playing_info_get_artist_len(packet)); 676 printf(" Artist: %s\n", value); 677 } 678 if (avrcp_subevent_now_playing_info_get_genre_len(packet) > 0){ 679 memcpy(value, avrcp_subevent_now_playing_info_get_genre(packet), avrcp_subevent_now_playing_info_get_genre_len(packet)); 680 printf(" Genre: %s\n", value); 681 } 682 printf(" Track: %d\n", avrcp_subevent_now_playing_info_get_track(packet)); 683 printf(" Total nr. tracks: %d\n", avrcp_subevent_now_playing_info_get_total_tracks(packet)); 684 printf(" Song length: %d ms\n", avrcp_subevent_now_playing_info_get_song_length(packet)); 685 break; 686 } 687 case AVRCP_SUBEVENT_PLAY_STATUS: 688 printf("song length: %d ms, song position: %d ms, play status: %s\n", 689 avrcp_subevent_play_status_get_song_length(packet), 690 avrcp_subevent_play_status_get_song_position(packet), 691 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 692 break; 693 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 694 printf("operation done %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 695 break; 696 case AVRCP_SUBEVENT_OPERATION_START: 697 printf("operation start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 698 break; 699 case AVRCP_SUBEVENT_PLAYER_APPLICATION_VALUE_RESPONSE: 700 // response to set shuffle and repeat mode 701 printf("\n"); 702 break; 703 default: 704 printf("Not implemented\n"); 705 break; 706 } 707 break; 708 default: 709 break; 710 } 711 break; 712 default: 713 // other packet type 714 break; 715 } 716 717 } 718 719 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 720 UNUSED(channel); 721 UNUSED(size); 722 uint8_t status; 723 uint16_t cid; 724 725 switch (packet_type) { 726 case HCI_EVENT_PACKET: 727 switch (hci_event_packet_get_type(packet)) { 728 case HCI_EVENT_A2DP_META: 729 switch (packet[2]){ 730 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 731 printf(" received non SBC codec. not implemented\n"); 732 break; 733 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 734 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 735 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 736 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 737 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 738 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 739 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 740 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 741 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 742 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 743 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 744 dump_sbc_configuration(sbc_configuration); 745 746 if (sbc_configuration.reconfigure){ 747 media_processing_close(); 748 } 749 750 // prepare media processing 751 media_processing_init(sbc_configuration); 752 break; 753 } 754 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 755 cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 756 if (cid != a2dp_cid) break; 757 status = a2dp_subevent_stream_established_get_status(packet); 758 if (status != 0){ 759 printf(" -- a2dp sink demo: streaming connection cannot be established, status 0x%02X\n", status); 760 app_state = AVDTP_APPLICATION_IDLE; 761 break; 762 } 763 local_seid = a2dp_subevent_stream_established_get_local_seid(packet); 764 printf(" -- a2dp sink demo: streaming connection is established, a2dp cid 0x%02X, local_seid %d\n", a2dp_cid, local_seid); 765 app_state = AVDTP_APPLICATION_STREAMING; 766 break; 767 768 case A2DP_SUBEVENT_STREAM_STARTED: 769 cid = a2dp_subevent_stream_started_get_a2dp_cid(packet); 770 if (cid != a2dp_cid) break; 771 status = a2dp_subevent_stream_started_get_status(packet); 772 if (status != 0){ 773 printf(" -- a2dp sink demo: stream cannot be started, status 0x%02X\n", status); 774 app_state = AVDTP_APPLICATION_IDLE; 775 break; 776 } 777 local_seid = a2dp_subevent_stream_started_get_local_seid(packet); 778 printf(" -- a2dp sink demo: stream started, a2dp cid 0x%02X, local_seid %d\n", a2dp_cid, local_seid); 779 780 // started 781 // media_processing_init(sbc_configuration); 782 break; 783 784 case A2DP_SUBEVENT_STREAM_SUSPENDED: 785 cid = a2dp_subevent_stream_suspended_get_a2dp_cid(packet); 786 if (cid != a2dp_cid) break; 787 status = a2dp_subevent_stream_suspended_get_status(packet); 788 if (status != 0){ 789 printf(" -- a2dp sink demo: stream cannot be paused, status 0x%02X\n", status); 790 break; 791 } 792 local_seid = a2dp_subevent_stream_suspended_get_local_seid(packet); 793 printf(" -- a2dp sink demo: stream paused, a2dp cid 0x%02X, local_seid %d\n", a2dp_cid, local_seid); 794 795 // paused/stopped 796 // media_processing_close(); 797 break; 798 799 case A2DP_SUBEVENT_STREAM_RELEASED: 800 cid = a2dp_subevent_stream_released_get_a2dp_cid(packet); 801 if (cid != a2dp_cid) break; 802 status = a2dp_subevent_stream_released_get_status(packet); 803 if (status != 0){ 804 printf(" -- a2dp sink demo: stream cannot be released, status 0x%02X\n", status); 805 break; 806 } 807 local_seid = a2dp_subevent_stream_released_get_local_seid(packet); 808 app_state = AVDTP_APPLICATION_IDLE; 809 printf(" -- a2dp sink demo: stream released, a2dp cid 0x%02X, local_seid %d\n", a2dp_cid, local_seid); 810 811 // paused/stopped 812 media_processing_close(); 813 break; 814 815 default: 816 printf(" not implemented\n"); 817 break; 818 } 819 break; 820 default: 821 break; 822 } 823 break; 824 default: 825 // other packet type 826 break; 827 } 828 } 829 830 #ifdef HAVE_BTSTACK_STDIN 831 static void show_usage(void){ 832 bd_addr_t iut_address; 833 gap_local_bd_addr(iut_address); 834 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 835 printf("b - AVDTP Sink create connection to addr %s\n", device_addr_string); 836 printf("B - AVDTP Sink disconnect\n"); 837 printf("c - AVRCP create connection to addr %s\n", device_addr_string); 838 printf("C - AVRCP disconnect\n"); 839 840 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 841 printf("O - get play status\n"); 842 printf("j - get now playing info\n"); 843 printf("k - play\n"); 844 printf("K - stop\n"); 845 printf("L - pause\n"); 846 printf("u - start fast forward\n"); 847 printf("U - stop fast forward\n"); 848 printf("n - start rewind\n"); 849 printf("N - stop rewind\n"); 850 printf("i - forward\n"); 851 printf("I - backward\n"); 852 printf("t - volume up\n"); 853 printf("T - volume down\n"); 854 printf("p - absolute volume of 50 percent\n"); 855 printf("M - mute\n"); 856 printf("r - skip\n"); 857 printf("q - query repeat and shuffle mode\n"); 858 printf("v - repeat single track\n"); 859 printf("x - repeat all tracks\n"); 860 printf("X - disable repeat mode\n"); 861 printf("z - shuffle all tracks\n"); 862 printf("Z - disable shuffle mode\n"); 863 864 printf("Ctrl-c - exit\n"); 865 printf("---\n"); 866 } 867 #endif 868 869 static uint8_t media_sbc_codec_capabilities[] = { 870 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 871 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 872 2, 53 873 }; 874 875 static uint8_t media_sbc_codec_configuration[] = { 876 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 877 (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 878 2, 53 879 }; 880 881 #ifdef HAVE_BTSTACK_STDIN 882 static void stdin_process(char cmd){ 883 sep.seid = 1; 884 switch (cmd){ 885 case 'b': 886 printf(" - Create AVDTP connection to addr %s.\n", bd_addr_to_str(device_addr)); 887 a2dp_sink_establish_stream(device_addr, local_seid, &a2dp_cid); 888 break; 889 case 'B': 890 printf(" - Disconnect\n"); 891 avdtp_sink_disconnect(a2dp_cid); 892 break; 893 case 'c': 894 printf(" - Create AVRCP connection to addr %s.\n", bd_addr_to_str(device_addr)); 895 avrcp_controller_connect(device_addr, &avrcp_cid); 896 printf(" assigned avrcp cid 0x%02x\n", avrcp_cid); 897 break; 898 case 'C': 899 printf(" - Disconnect\n"); 900 avrcp_disconnect(avrcp_cid); 901 break; 902 903 case '\n': 904 case '\r': 905 break; 906 case 'O': 907 printf(" - get play status\n"); 908 avrcp_get_play_status(avrcp_cid); 909 break; 910 case 'j': 911 printf(" - get now playing info\n"); 912 avrcp_get_now_playing_info(avrcp_cid); 913 break; 914 case 'k': 915 printf(" - play\n"); 916 avrcp_play(avrcp_cid); 917 break; 918 case 'K': 919 printf(" - stop\n"); 920 avrcp_stop(avrcp_cid); 921 break; 922 case 'L': 923 printf(" - pause\n"); 924 avrcp_pause(avrcp_cid); 925 break; 926 case 'u': 927 printf(" - start fast forward\n"); 928 avrcp_start_fast_forward(avrcp_cid); 929 break; 930 case 'U': 931 printf(" - stop fast forward\n"); 932 avrcp_stop_fast_forward(avrcp_cid); 933 break; 934 case 'n': 935 printf(" - start rewind\n"); 936 avrcp_start_rewind(avrcp_cid); 937 break; 938 case 'N': 939 printf(" - stop rewind\n"); 940 avrcp_stop_rewind(avrcp_cid); 941 break; 942 case 'i': 943 printf(" - forward\n"); 944 avrcp_forward(avrcp_cid); 945 break; 946 case 'I': 947 printf(" - backward\n"); 948 avrcp_backward(avrcp_cid); 949 break; 950 case 't': 951 printf(" - volume up\n"); 952 avrcp_volume_up(avrcp_cid); 953 break; 954 case 'T': 955 printf(" - volume down\n"); 956 avrcp_volume_down(avrcp_cid); 957 break; 958 case 'p': 959 printf(" - absolute volume of 50 percent\n"); 960 avrcp_set_absolute_volume(avrcp_cid, 50); 961 break; 962 case 'M': 963 printf(" - mute\n"); 964 avrcp_mute(avrcp_cid); 965 break; 966 case 'r': 967 printf(" - skip\n"); 968 avrcp_skip(avrcp_cid); 969 break; 970 case 'q': 971 printf(" - query repeat and shuffle mode\n"); 972 avrcp_query_shuffle_and_repeat_modes(avrcp_cid); 973 break; 974 case 'v': 975 printf(" - repeat single track\n"); 976 avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 977 break; 978 case 'x': 979 printf(" - repeat all tracks\n"); 980 avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 981 break; 982 case 'X': 983 printf(" - disable repeat mode\n"); 984 avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_OFF); 985 break; 986 case 'z': 987 printf(" - shuffle all tracks\n"); 988 avrcp_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 989 break; 990 case 'Z': 991 printf(" - disable shuffle mode\n"); 992 avrcp_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_OFF); 993 break; 994 default: 995 show_usage(); 996 break; 997 998 } 999 } 1000 #endif 1001 1002 1003 int btstack_main(int argc, const char * argv[]); 1004 int btstack_main(int argc, const char * argv[]){ 1005 1006 UNUSED(argc); 1007 (void)argv; 1008 1009 /* Register for HCI events */ 1010 hci_event_callback_registration.callback = &packet_handler; 1011 hci_add_event_handler(&hci_event_callback_registration); 1012 1013 l2cap_init(); 1014 // Initialize AVDTP Sink 1015 a2dp_sink_init(); 1016 a2dp_sink_register_packet_handler(&packet_handler); 1017 a2dp_sink_register_media_handler(&handle_l2cap_media_data_packet); 1018 1019 local_seid = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO, AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities), media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration)); 1020 1021 // Initialize AVRCP COntroller 1022 avrcp_controller_init(); 1023 avrcp_register_packet_handler(&avrcp_packet_handler); 1024 1025 // Initialize SDP 1026 sdp_init(); 1027 // setup AVDTP sink 1028 memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer)); 1029 a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, 1, NULL, NULL); 1030 sdp_register_service(sdp_avdtp_sink_service_buffer); 1031 1032 // setup AVRCP 1033 memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); 1034 avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10001, AVRCP_BROWSING_ENABLED, 1, NULL, NULL); 1035 sdp_register_service(sdp_avrcp_controller_service_buffer); 1036 1037 1038 gap_set_local_name("BTstack A2DP Sink Test"); 1039 gap_discoverable_control(1); 1040 gap_set_class_of_device(0x200408); 1041 printf("sdp, gap done\n"); 1042 1043 // turn on! 1044 hci_power_control(HCI_POWER_ON); 1045 1046 #ifdef HAVE_AUDIO_DMA 1047 static btstack_data_source_t hal_audio_dma_data_source; 1048 // set up polling data_source 1049 btstack_run_loop_set_data_source_handler(&hal_audio_dma_data_source, &hal_audio_dma_process); 1050 btstack_run_loop_enable_data_source_callbacks(&hal_audio_dma_data_source, DATA_SOURCE_CALLBACK_POLL); 1051 btstack_run_loop_add_data_source(&hal_audio_dma_data_source); 1052 #endif 1053 1054 #ifdef HAVE_BTSTACK_STDIN 1055 // parse human readable Bluetooth address 1056 sscanf_bd_addr(device_addr_string, device_addr); 1057 btstack_stdin_setup(stdin_process); 1058 #endif 1059 1060 return 0; 1061 } 1062