1/****************************************************************************** 2 * 3 * Copyright (C) 2009-2012 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19/****************************************************************************** 20 ** 21 ** Name: btif_media_task.c 22 ** 23 ** Description: This is the multimedia module for the BTIF system. It 24 ** contains task implementations AV, HS and HF profiles 25 ** audio & video processing 26 ** 27 ******************************************************************************/ 28 29#include <string.h> 30#include <stdio.h> 31#include <sys/types.h> 32#include <sys/stat.h> 33#include <fcntl.h> 34#include <unistd.h> 35#include <pthread.h> 36#include <stdint.h> 37#include <sys/time.h> 38#include <errno.h> 39 40#include "bt_target.h" 41#include "gki.h" 42#include "bta_api.h" 43#include "btu.h" 44#include "bta_sys.h" 45#include "bta_sys_int.h" 46 47#include "bta_av_api.h" 48#include "a2d_api.h" 49#include "a2d_sbc.h" 50#include "a2d_int.h" 51#include "bta_av_sbc.h" 52#include "bta_av_ci.h" 53#include "l2c_api.h" 54 55#include "btif_av_co.h" 56#include "btif_media.h" 57 58#if (BTA_AV_INCLUDED == TRUE) 59#include "sbc_encoder.h" 60#endif 61 62#define LOG_TAG "BTIF-MEDIA" 63 64#include <hardware/bluetooth.h> 65#include "audio_a2dp_hw.h" 66#include "btif_av.h" 67#include "btif_sm.h" 68#include "btif_util.h" 69#if (BTA_AV_SINK_INCLUDED == TRUE) 70#include "oi_codec_sbc.h" 71#include "oi_status.h" 72#endif 73#include "stdio.h" 74#include <dlfcn.h> 75 76//#define DEBUG_MEDIA_AV_FLOW TRUE 77 78#if (BTA_AV_SINK_INCLUDED == TRUE) 79OI_CODEC_SBC_DECODER_CONTEXT context; 80OI_UINT32 contextData[CODEC_DATA_WORDS(2, SBC_CODEC_FAST_FILTER_BUFFERS)]; 81OI_INT16 pcmData[15*SBC_MAX_SAMPLES_PER_FRAME*SBC_MAX_CHANNELS]; 82#endif 83 84/***************************************************************************** 85 ** Constants 86 *****************************************************************************/ 87 88#ifndef AUDIO_CHANNEL_OUT_MONO 89#define AUDIO_CHANNEL_OUT_MONO 0x01 90#endif 91 92#ifndef AUDIO_CHANNEL_OUT_STEREO 93#define AUDIO_CHANNEL_OUT_STEREO 0x03 94#endif 95 96/* BTIF media task gki event definition */ 97#define BTIF_MEDIA_TASK_CMD TASK_MBOX_0_EVT_MASK 98#define BTIF_MEDIA_TASK_DATA TASK_MBOX_1_EVT_MASK 99 100#define BTIF_MEDIA_TASK_KILL EVENT_MASK(GKI_SHUTDOWN_EVT) 101 102#define BTIF_MEDIA_AA_TASK_TIMER_ID TIMER_0 103#define BTIF_MEDIA_AV_TASK_TIMER_ID TIMER_1 104#define BTIF_MEDIA_AVK_TASK_TIMER_ID TIMER_2 105 106#define BTIF_MEDIA_AA_TASK_TIMER TIMER_0_EVT_MASK 107#define BTIF_MEDIA_AV_TASK_TIMER TIMER_1_EVT_MASK 108#define BTIF_MEDIA_AVK_TASK_TIMER TIMER_2_EVT_MASK 109 110 111#define BTIF_MEDIA_TASK_CMD_MBOX TASK_MBOX_0 /* cmd mailbox */ 112#define BTIF_MEDIA_TASK_DATA_MBOX TASK_MBOX_1 /* data mailbox */ 113 114 115/* BTIF media cmd event definition : BTIF_MEDIA_TASK_CMD */ 116enum 117{ 118 BTIF_MEDIA_START_AA_TX = 1, 119 BTIF_MEDIA_STOP_AA_TX, 120 BTIF_MEDIA_AA_RX_RDY, 121 BTIF_MEDIA_UIPC_RX_RDY, 122 BTIF_MEDIA_SBC_ENC_INIT, 123 BTIF_MEDIA_SBC_ENC_UPDATE, 124 BTIF_MEDIA_SBC_DEC_INIT, 125 BTIF_MEDIA_VIDEO_DEC_INIT, 126 BTIF_MEDIA_FLUSH_AA_TX, 127 BTIF_MEDIA_FLUSH_AA_RX, 128 BTIF_MEDIA_AUDIO_FEEDING_INIT, 129 BTIF_MEDIA_AUDIO_RECEIVING_INIT, 130 BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE, 131 BTIF_MEDIA_AUDIO_SINK_START_DECODING, 132 BTIF_MEDIA_AUDIO_SINK_STOP_DECODING, 133 BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK 134}; 135 136enum { 137 MEDIA_TASK_STATE_OFF = 0, 138 MEDIA_TASK_STATE_ON = 1, 139 MEDIA_TASK_STATE_SHUTTING_DOWN = 2 140}; 141 142/* Macro to multiply the media task tick */ 143#ifndef BTIF_MEDIA_NUM_TICK 144#define BTIF_MEDIA_NUM_TICK 1 145#endif 146 147/* Media task tick in milliseconds, must be set to multiple of 148 (1000/TICKS_PER_SEC) (10) */ 149 150#define BTIF_MEDIA_TIME_TICK (20 * BTIF_MEDIA_NUM_TICK) 151#define A2DP_DATA_READ_POLL_MS (BTIF_MEDIA_TIME_TICK / 2) 152#define BTIF_SINK_MEDIA_TIME_TICK (20 * BTIF_MEDIA_NUM_TICK) 153 154 155/* buffer pool */ 156#define BTIF_MEDIA_AA_POOL_ID GKI_POOL_ID_3 157#define BTIF_MEDIA_AA_BUF_SIZE GKI_BUF3_SIZE 158 159/* offset */ 160#if (BTA_AV_CO_CP_SCMS_T == TRUE) 161#define BTIF_MEDIA_AA_SBC_OFFSET (AVDT_MEDIA_OFFSET + BTA_AV_SBC_HDR_SIZE + 1) 162#else 163#define BTIF_MEDIA_AA_SBC_OFFSET (AVDT_MEDIA_OFFSET + BTA_AV_SBC_HDR_SIZE) 164#endif 165 166/* Define the bitrate step when trying to match bitpool value */ 167#ifndef BTIF_MEDIA_BITRATE_STEP 168#define BTIF_MEDIA_BITRATE_STEP 5 169#endif 170 171/* Middle quality quality setting @ 44.1 khz */ 172#define DEFAULT_SBC_BITRATE 328 173 174#ifndef BTIF_A2DP_NON_EDR_MAX_RATE 175#define BTIF_A2DP_NON_EDR_MAX_RATE 229 176#endif 177 178#ifndef A2DP_MEDIA_TASK_STACK_SIZE 179#define A2DP_MEDIA_TASK_STACK_SIZE 0x2000 /* In bytes */ 180#endif 181 182#define A2DP_MEDIA_TASK_TASK_STR ((INT8 *) "A2DP-MEDIA") 183static UINT32 a2dp_media_task_stack[(A2DP_MEDIA_TASK_STACK_SIZE + 3) / 4]; 184 185#define BT_MEDIA_TASK A2DP_MEDIA_TASK 186 187#define USEC_PER_SEC 1000000L 188#define TPUT_STATS_INTERVAL_US (3000*1000) 189 190/* 191 * CONGESTION COMPENSATION CTRL :: 192 * 193 * Thus setting controls how many buffers we will hold in media task 194 * during temp link congestion. Together with the stack buffer queues 195 * it controls much temporary a2dp link congestion we can 196 * compensate for. It however also depends on the default run level of sinks 197 * jitterbuffers. Depending on type of sink this would vary. 198 * Ideally the (SRC) max tx buffer capacity should equal the sinks 199 * jitterbuffer runlevel including any intermediate buffers on the way 200 * towards the sinks codec. 201 */ 202 203/* fixme -- define this in pcm time instead of buffer count */ 204 205/* The typical runlevel of the tx queue size is ~1 buffer 206 but due to link flow control or thread preemption in lower 207 layers we might need to temporarily buffer up data */ 208 209/* 18 frames is equivalent to 6.89*18*2.9 ~= 360 ms @ 44.1 khz, 20 ms mediatick */ 210#define MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ 18 211#define A2DP_PACKET_COUNT_LOW_WATERMARK 5 212#define MAX_PCM_FRAME_NUM_PER_TICK 10 213#define RESET_RATE_COUNTER_THRESHOLD_MS 2000 214 215//#define BTIF_MEDIA_VERBOSE_ENABLED 216/* In case of A2DP SINK, we will delay start by 5 AVDTP Packets*/ 217#define MAX_A2DP_DELAYED_START_FRAME_COUNT 5 218#define PACKET_PLAYED_PER_TICK_48 8 219#define PACKET_PLAYED_PER_TICK_44 7 220#define PACKET_PLAYED_PER_TICK_32 5 221#define PACKET_PLAYED_PER_TICK_16 3 222 223 224#ifdef BTIF_MEDIA_VERBOSE_ENABLED 225#define VERBOSE(fmt, ...) \ 226 LogMsg( TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | \ 227 TRACE_TYPE_ERROR, fmt, ## __VA_ARGS__) 228#else 229#define VERBOSE(fmt, ...) 230#endif 231 232/***************************************************************************** 233 ** Data types 234 *****************************************************************************/ 235typedef struct 236{ 237 UINT16 num_frames_to_be_processed; 238 UINT16 len; 239 UINT16 offset; 240 UINT16 layer_specific; 241} tBT_SBC_HDR; 242 243typedef struct 244{ 245 UINT32 aa_frame_counter; 246 INT32 aa_feed_counter; 247 INT32 aa_feed_residue; 248 UINT32 counter; 249 UINT32 bytes_per_tick; /* pcm bytes read each media task tick */ 250 UINT32 max_counter_exit; 251 UINT32 max_counter_enter; 252 UINT32 overflow_count; 253 BOOLEAN overflow; 254} tBTIF_AV_MEDIA_FEEDINGS_PCM_STATE; 255 256 257typedef union 258{ 259 tBTIF_AV_MEDIA_FEEDINGS_PCM_STATE pcm; 260} tBTIF_AV_MEDIA_FEEDINGS_STATE; 261 262typedef struct 263{ 264#if (BTA_AV_INCLUDED == TRUE) 265 BUFFER_Q TxAaQ; 266 BUFFER_Q RxSbcQ; 267 BOOLEAN is_tx_timer; 268 BOOLEAN is_rx_timer; 269 UINT16 TxAaMtuSize; 270 UINT32 timestamp; 271 UINT8 TxTranscoding; 272 tBTIF_AV_FEEDING_MODE feeding_mode; 273 tBTIF_AV_MEDIA_FEEDINGS media_feeding; 274 tBTIF_AV_MEDIA_FEEDINGS_STATE media_feeding_state; 275 SBC_ENC_PARAMS encoder; 276 UINT8 busy_level; 277 void* av_sm_hdl; 278 UINT8 a2dp_cmd_pending; /* we can have max one command pending */ 279 BOOLEAN tx_flush; /* discards any outgoing data when true */ 280 BOOLEAN rx_flush; /* discards any incoming data when true */ 281 UINT8 peer_sep; 282 BOOLEAN data_channel_open; 283 UINT8 frames_to_process; 284 285 UINT32 sample_rate; 286 UINT8 channel_count; 287#endif 288 289} tBTIF_MEDIA_CB; 290 291typedef struct { 292 long long rx; 293 long long rx_tot; 294 long long tx; 295 long long tx_tot; 296 long long ts_prev_us; 297} t_stat; 298 299/***************************************************************************** 300 ** Local data 301 *****************************************************************************/ 302 303static tBTIF_MEDIA_CB btif_media_cb; 304static int media_task_running = MEDIA_TASK_STATE_OFF; 305static UINT64 last_frame_us = 0; 306 307 308/***************************************************************************** 309 ** Local functions 310 *****************************************************************************/ 311 312static void btif_a2dp_data_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event); 313static void btif_a2dp_ctrl_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event); 314static void btif_a2dp_encoder_update(void); 315const char* dump_media_event(UINT16 event); 316#if (BTA_AV_SINK_INCLUDED == TRUE) 317extern OI_STATUS OI_CODEC_SBC_DecodeFrame(OI_CODEC_SBC_DECODER_CONTEXT *context, 318 const OI_BYTE **frameData, 319 unsigned long *frameBytes, 320 OI_INT16 *pcmData, 321 unsigned long *pcmBytes); 322extern OI_STATUS OI_CODEC_SBC_DecoderReset(OI_CODEC_SBC_DECODER_CONTEXT *context, 323 unsigned long *decoderData, 324 unsigned long decoderDataBytes, 325 OI_UINT8 maxChannels, 326 OI_UINT8 pcmStride, 327 OI_BOOL enhanced); 328#endif 329static void btif_media_flush_q(BUFFER_Q *p_q); 330static void btif_media_task_aa_handle_stop_decoding(void ); 331static void btif_media_task_aa_rx_flush(void); 332static BOOLEAN btif_media_task_stop_decoding_req(void); 333 334/***************************************************************************** 335 ** Externs 336 *****************************************************************************/ 337 338static void btif_media_task_handle_cmd(BT_HDR *p_msg); 339static void btif_media_task_handle_media(BT_HDR*p_msg); 340/* Handle incoming media packets A2DP SINK streaming*/ 341#if (BTA_AV_SINK_INCLUDED == TRUE) 342static void btif_media_task_handle_inc_media(tBT_SBC_HDR*p_msg); 343#endif 344 345#if (BTA_AV_INCLUDED == TRUE) 346static void btif_media_send_aa_frame(void); 347static void btif_media_task_feeding_state_reset(void); 348static void btif_media_task_aa_start_tx(void); 349static void btif_media_task_aa_stop_tx(void); 350static void btif_media_task_enc_init(BT_HDR *p_msg); 351static void btif_media_task_enc_update(BT_HDR *p_msg); 352static void btif_media_task_audio_feeding_init(BT_HDR *p_msg); 353static void btif_media_task_aa_tx_flush(BT_HDR *p_msg); 354static void btif_media_aa_prep_2_send(UINT8 nb_frame); 355#if (BTA_AV_SINK_INCLUDED == TRUE) 356static void btif_media_task_aa_handle_decoder_reset(BT_HDR *p_msg); 357static void btif_media_task_aa_handle_clear_track(void); 358#endif 359static void btif_media_task_aa_handle_start_decoding(void ); 360#endif 361BOOLEAN btif_media_task_start_decoding_req(void); 362BOOLEAN btif_media_task_clear_track(void); 363/***************************************************************************** 364 ** Misc helper functions 365 *****************************************************************************/ 366 367static UINT64 time_now_us() 368{ 369 struct timespec ts_now; 370 clock_gettime(CLOCK_BOOTTIME, &ts_now); 371 return ((UINT64)ts_now.tv_sec * USEC_PER_SEC) + ((UINT64)ts_now.tv_nsec / 1000); 372} 373 374static void log_tstamps_us(char *comment) 375{ 376 static UINT64 prev_us = 0; 377 const UINT64 now_us = time_now_us(); 378 APPL_TRACE_DEBUG("[%s] ts %08llu, diff : %08llu, queue sz %d", comment, now_us, now_us - prev_us, 379 btif_media_cb.TxAaQ.count); 380 prev_us = now_us; 381} 382 383const char* dump_media_event(UINT16 event) 384{ 385 switch(event) 386 { 387 CASE_RETURN_STR(BTIF_MEDIA_START_AA_TX) 388 CASE_RETURN_STR(BTIF_MEDIA_STOP_AA_TX) 389 CASE_RETURN_STR(BTIF_MEDIA_AA_RX_RDY) 390 CASE_RETURN_STR(BTIF_MEDIA_UIPC_RX_RDY) 391 CASE_RETURN_STR(BTIF_MEDIA_SBC_ENC_INIT) 392 CASE_RETURN_STR(BTIF_MEDIA_SBC_ENC_UPDATE) 393 CASE_RETURN_STR(BTIF_MEDIA_SBC_DEC_INIT) 394 CASE_RETURN_STR(BTIF_MEDIA_VIDEO_DEC_INIT) 395 CASE_RETURN_STR(BTIF_MEDIA_FLUSH_AA_TX) 396 CASE_RETURN_STR(BTIF_MEDIA_FLUSH_AA_RX) 397 CASE_RETURN_STR(BTIF_MEDIA_AUDIO_FEEDING_INIT) 398 CASE_RETURN_STR(BTIF_MEDIA_AUDIO_RECEIVING_INIT) 399 CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE) 400 CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_START_DECODING) 401 CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_STOP_DECODING) 402 CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK) 403 404 default: 405 return "UNKNOWN MEDIA EVENT"; 406 } 407} 408 409/***************************************************************************** 410 ** A2DP CTRL PATH 411 *****************************************************************************/ 412 413static const char* dump_a2dp_ctrl_event(UINT8 event) 414{ 415 switch(event) 416 { 417 CASE_RETURN_STR(A2DP_CTRL_CMD_NONE) 418 CASE_RETURN_STR(A2DP_CTRL_CMD_CHECK_READY) 419 CASE_RETURN_STR(A2DP_CTRL_CMD_START) 420 CASE_RETURN_STR(A2DP_CTRL_CMD_STOP) 421 CASE_RETURN_STR(A2DP_CTRL_CMD_SUSPEND) 422 default: 423 return "UNKNOWN MSG ID"; 424 } 425} 426 427static void btif_audiopath_detached(void) 428{ 429 APPL_TRACE_EVENT("## AUDIO PATH DETACHED ##"); 430 431 /* send stop request only if we are actively streaming and haven't received 432 a stop request. Potentially audioflinger detached abnormally */ 433 if (btif_media_cb.is_tx_timer) 434 { 435 /* post stop event and wait for audio path to stop */ 436 btif_dispatch_sm_event(BTIF_AV_STOP_STREAM_REQ_EVT, NULL, 0); 437 } 438} 439 440static void a2dp_cmd_acknowledge(int status) 441{ 442 UINT8 ack = status; 443 444 APPL_TRACE_EVENT("## a2dp ack : %s, status %d ##", 445 dump_a2dp_ctrl_event(btif_media_cb.a2dp_cmd_pending), status); 446 447 /* sanity check */ 448 if (btif_media_cb.a2dp_cmd_pending == A2DP_CTRL_CMD_NONE) 449 { 450 APPL_TRACE_ERROR("warning : no command pending, ignore ack"); 451 return; 452 } 453 454 /* clear pending */ 455 btif_media_cb.a2dp_cmd_pending = A2DP_CTRL_CMD_NONE; 456 457 /* acknowledge start request */ 458 UIPC_Send(UIPC_CH_ID_AV_CTRL, 0, &ack, 1); 459} 460 461 462static void btif_recv_ctrl_data(void) 463{ 464 UINT8 cmd = 0; 465 int n; 466 n = UIPC_Read(UIPC_CH_ID_AV_CTRL, NULL, &cmd, 1); 467 468 /* detach on ctrl channel means audioflinger process was terminated */ 469 if (n == 0) 470 { 471 APPL_TRACE_EVENT("CTRL CH DETACHED"); 472 UIPC_Close(UIPC_CH_ID_AV_CTRL); 473 /* we can operate only on datachannel, if af client wants to 474 do send additional commands the ctrl channel would be reestablished */ 475 //btif_audiopath_detached(); 476 return; 477 } 478 479 APPL_TRACE_DEBUG("a2dp-ctrl-cmd : %s", dump_a2dp_ctrl_event(cmd)); 480 481 btif_media_cb.a2dp_cmd_pending = cmd; 482 483 switch(cmd) 484 { 485 case A2DP_CTRL_CMD_CHECK_READY: 486 487 if (media_task_running == MEDIA_TASK_STATE_SHUTTING_DOWN) 488 { 489 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); 490 return; 491 } 492 493 /* check whether av is ready to setup a2dp datapath */ 494 if ((btif_av_stream_ready() == TRUE) || (btif_av_stream_started_ready() == TRUE)) 495 { 496 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 497 } 498 else 499 { 500 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); 501 } 502 break; 503 504 case A2DP_CTRL_CMD_START: 505 506 if (btif_av_stream_ready() == TRUE) 507 { 508 /* setup audio data channel listener */ 509 UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb); 510 511 /* post start event and wait for audio path to open */ 512 btif_dispatch_sm_event(BTIF_AV_START_STREAM_REQ_EVT, NULL, 0); 513 514#if (BTA_AV_SINK_INCLUDED == TRUE) 515 if (btif_media_cb.peer_sep == AVDT_TSEP_SRC) 516 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 517#endif 518 } 519 else if (btif_av_stream_started_ready()) 520 { 521 /* already started, setup audio data channel listener 522 and ack back immediately */ 523 UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb); 524 525 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 526 } 527 else 528 { 529 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); 530 break; 531 } 532 break; 533 534 case A2DP_CTRL_CMD_STOP: 535 if (btif_media_cb.peer_sep == AVDT_TSEP_SNK && btif_media_cb.is_tx_timer == FALSE) 536 { 537 /* we are already stopped, just ack back */ 538 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 539 break; 540 } 541 542 btif_dispatch_sm_event(BTIF_AV_STOP_STREAM_REQ_EVT, NULL, 0); 543 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 544 break; 545 546 case A2DP_CTRL_CMD_SUSPEND: 547 /* local suspend */ 548 if (btif_av_stream_started_ready()) 549 { 550 btif_dispatch_sm_event(BTIF_AV_SUSPEND_STREAM_REQ_EVT, NULL, 0); 551 } 552 else 553 { 554 /* if we are not in started state, just ack back ok and let 555 audioflinger close the channel. This can happen if we are 556 remotely suspended */ 557 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 558 } 559 break; 560 561 case A2DP_CTRL_GET_AUDIO_CONFIG: 562 { 563 uint32_t sample_rate = btif_media_cb.sample_rate; 564 uint8_t channel_count = btif_media_cb.channel_count; 565 566 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 567 UIPC_Send(UIPC_CH_ID_AV_CTRL, 0, (UINT8 *)&sample_rate, 4); 568 UIPC_Send(UIPC_CH_ID_AV_CTRL, 0, &channel_count, 1); 569 break; 570 } 571 572 default: 573 APPL_TRACE_ERROR("UNSUPPORTED CMD (%d)", cmd); 574 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); 575 break; 576 } 577 APPL_TRACE_DEBUG("a2dp-ctrl-cmd : %s DONE", dump_a2dp_ctrl_event(cmd)); 578} 579 580static void btif_a2dp_ctrl_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event) 581{ 582 UNUSED(ch_id); 583 584 APPL_TRACE_DEBUG("A2DP-CTRL-CHANNEL EVENT %s", dump_uipc_event(event)); 585 586 switch(event) 587 { 588 case UIPC_OPEN_EVT: 589 /* fetch av statemachine handle */ 590 btif_media_cb.av_sm_hdl = btif_av_get_sm_handle(); 591 break; 592 593 case UIPC_CLOSE_EVT: 594 /* restart ctrl server unless we are shutting down */ 595 if (media_task_running == MEDIA_TASK_STATE_ON) 596 UIPC_Open(UIPC_CH_ID_AV_CTRL , btif_a2dp_ctrl_cb); 597 break; 598 599 case UIPC_RX_DATA_READY_EVT: 600 btif_recv_ctrl_data(); 601 break; 602 603 default : 604 APPL_TRACE_ERROR("### A2DP-CTRL-CHANNEL EVENT %d NOT HANDLED ###", event); 605 break; 606 } 607} 608 609static void btif_a2dp_data_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event) 610{ 611 UNUSED(ch_id); 612 613 APPL_TRACE_DEBUG("BTIF MEDIA (A2DP-DATA) EVENT %s", dump_uipc_event(event)); 614 615 switch(event) 616 { 617 case UIPC_OPEN_EVT: 618 619 /* read directly from media task from here on (keep callback for 620 connection events */ 621 UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_REG_REMOVE_ACTIVE_READSET, NULL); 622 UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_SET_READ_POLL_TMO, 623 (void *)A2DP_DATA_READ_POLL_MS); 624 625 if (btif_media_cb.peer_sep == AVDT_TSEP_SNK) { 626 /* Start the media task to encode SBC */ 627 btif_media_task_start_aa_req(); 628 629 /* make sure we update any changed sbc encoder params */ 630 btif_a2dp_encoder_update(); 631 } 632 btif_media_cb.data_channel_open = TRUE; 633 634 /* ack back when media task is fully started */ 635 break; 636 637 case UIPC_CLOSE_EVT: 638 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 639 btif_audiopath_detached(); 640 btif_media_cb.data_channel_open = FALSE; 641 break; 642 643 default : 644 APPL_TRACE_ERROR("### A2DP-DATA EVENT %d NOT HANDLED ###", event); 645 break; 646 } 647} 648 649 650/***************************************************************************** 651 ** BTIF ADAPTATION 652 *****************************************************************************/ 653 654static UINT16 btif_media_task_get_sbc_rate(void) 655{ 656 UINT16 rate = DEFAULT_SBC_BITRATE; 657 658 /* restrict bitrate if a2dp link is non-edr */ 659 if (!btif_av_is_peer_edr()) 660 { 661 rate = BTIF_A2DP_NON_EDR_MAX_RATE; 662 APPL_TRACE_DEBUG("non-edr a2dp sink detected, restrict rate to %d", rate); 663 } 664 665 return rate; 666} 667 668static void btif_a2dp_encoder_init(void) 669{ 670 UINT16 minmtu; 671 tBTIF_MEDIA_INIT_AUDIO msg; 672 tA2D_SBC_CIE sbc_config; 673 674 /* lookup table for converting channel mode */ 675 UINT16 codec_mode_tbl[5] = { SBC_JOINT_STEREO, SBC_STEREO, SBC_DUAL, 0, SBC_MONO }; 676 677 /* lookup table for converting number of blocks */ 678 UINT16 codec_block_tbl[5] = { 16, 12, 8, 0, 4 }; 679 680 /* lookup table to convert freq */ 681 UINT16 freq_block_tbl[5] = { SBC_sf48000, SBC_sf44100, SBC_sf32000, 0, SBC_sf16000 }; 682 683 APPL_TRACE_DEBUG("btif_a2dp_encoder_init"); 684 685 /* Retrieve the current SBC configuration (default if currently not used) */ 686 bta_av_co_audio_get_sbc_config(&sbc_config, &minmtu); 687 msg.NumOfSubBands = (sbc_config.num_subbands == A2D_SBC_IE_SUBBAND_4) ? 4 : 8; 688 msg.NumOfBlocks = codec_block_tbl[sbc_config.block_len >> 5]; 689 msg.AllocationMethod = (sbc_config.alloc_mthd == A2D_SBC_IE_ALLOC_MD_L) ? SBC_LOUDNESS : SBC_SNR; 690 msg.ChannelMode = codec_mode_tbl[sbc_config.ch_mode >> 1]; 691 msg.SamplingFreq = freq_block_tbl[sbc_config.samp_freq >> 5]; 692 msg.MtuSize = minmtu; 693 694 APPL_TRACE_EVENT("msg.ChannelMode %x", msg.ChannelMode); 695 696 /* Init the media task to encode SBC properly */ 697 btif_media_task_enc_init_req(&msg); 698} 699 700static void btif_a2dp_encoder_update(void) 701{ 702 UINT16 minmtu; 703 tA2D_SBC_CIE sbc_config; 704 tBTIF_MEDIA_UPDATE_AUDIO msg; 705 UINT8 pref_min; 706 UINT8 pref_max; 707 708 APPL_TRACE_DEBUG("btif_a2dp_encoder_update"); 709 710 /* Retrieve the current SBC configuration (default if currently not used) */ 711 bta_av_co_audio_get_sbc_config(&sbc_config, &minmtu); 712 713 APPL_TRACE_DEBUG("btif_a2dp_encoder_update: Common min_bitpool:%d(0x%x) max_bitpool:%d(0x%x)", 714 sbc_config.min_bitpool, sbc_config.min_bitpool, 715 sbc_config.max_bitpool, sbc_config.max_bitpool); 716 717 if (sbc_config.min_bitpool > sbc_config.max_bitpool) 718 { 719 APPL_TRACE_ERROR("btif_a2dp_encoder_update: ERROR btif_a2dp_encoder_update min_bitpool > max_bitpool"); 720 } 721 722 /* check if remote sink has a preferred bitpool range */ 723 if (bta_av_co_get_remote_bitpool_pref(&pref_min, &pref_max) == TRUE) 724 { 725 /* adjust our preferred bitpool with the remote preference if within 726 our capable range */ 727 728 if (pref_min < sbc_config.min_bitpool) 729 pref_min = sbc_config.min_bitpool; 730 731 if (pref_max > sbc_config.max_bitpool) 732 pref_max = sbc_config.max_bitpool; 733 734 msg.MinBitPool = pref_min; 735 msg.MaxBitPool = pref_max; 736 737 if ((pref_min != sbc_config.min_bitpool) || (pref_max != sbc_config.max_bitpool)) 738 { 739 APPL_TRACE_EVENT("## adjusted our bitpool range to peer pref [%d:%d] ##", 740 pref_min, pref_max); 741 } 742 } 743 else 744 { 745 msg.MinBitPool = sbc_config.min_bitpool; 746 msg.MaxBitPool = sbc_config.max_bitpool; 747 } 748 749 msg.MinMtuSize = minmtu; 750 751 /* Update the media task to encode SBC properly */ 752 btif_media_task_enc_update_req(&msg); 753} 754 755 756/***************************************************************************** 757** 758** Function btif_a2dp_start_media_task 759** 760** Description 761** 762** Returns 763** 764*******************************************************************************/ 765 766int btif_a2dp_start_media_task(void) 767{ 768 int retval; 769 770 if (media_task_running != MEDIA_TASK_STATE_OFF) 771 { 772 APPL_TRACE_ERROR("warning : media task already running"); 773 return GKI_FAILURE; 774 } 775 776 APPL_TRACE_EVENT("## A2DP START MEDIA TASK ##"); 777 778 /* start a2dp media task */ 779 retval = GKI_create_task((TASKPTR)btif_media_task, A2DP_MEDIA_TASK, 780 A2DP_MEDIA_TASK_TASK_STR, 781 (UINT16 *) ((UINT8 *)a2dp_media_task_stack + A2DP_MEDIA_TASK_STACK_SIZE), 782 sizeof(a2dp_media_task_stack)); 783 784 if (retval != GKI_SUCCESS) 785 return retval; 786 787 /* wait for task to come up to sure we are able to send messages to it */ 788 while (media_task_running == MEDIA_TASK_STATE_OFF) 789 usleep(10); 790 791 APPL_TRACE_EVENT("## A2DP MEDIA TASK STARTED ##"); 792 793 return retval; 794} 795 796/***************************************************************************** 797** 798** Function btif_a2dp_stop_media_task 799** 800** Description 801** 802** Returns 803** 804*******************************************************************************/ 805 806void btif_a2dp_stop_media_task(void) 807{ 808 APPL_TRACE_EVENT("## A2DP STOP MEDIA TASK ##"); 809 GKI_destroy_task(BT_MEDIA_TASK); 810} 811 812/***************************************************************************** 813** 814** Function btif_a2dp_on_init 815** 816** Description 817** 818** Returns 819** 820*******************************************************************************/ 821 822void btif_a2dp_on_init(void) 823{ 824 //tput_mon(1, 0, 1); 825} 826 827 828/***************************************************************************** 829** 830** Function btif_a2dp_setup_codec 831** 832** Description 833** 834** Returns 835** 836*******************************************************************************/ 837 838void btif_a2dp_setup_codec(void) 839{ 840 tBTIF_AV_MEDIA_FEEDINGS media_feeding; 841 tBTIF_STATUS status; 842 843 APPL_TRACE_EVENT("## A2DP SETUP CODEC ##"); 844 845 GKI_disable(); 846 847 /* for now hardcode 44.1 khz 16 bit stereo PCM format */ 848 media_feeding.cfg.pcm.sampling_freq = 44100; 849 media_feeding.cfg.pcm.bit_per_sample = 16; 850 media_feeding.cfg.pcm.num_channel = 2; 851 media_feeding.format = BTIF_AV_CODEC_PCM; 852 853 if (bta_av_co_audio_set_codec(&media_feeding, &status)) 854 { 855 tBTIF_MEDIA_INIT_AUDIO_FEEDING mfeed; 856 857 /* Init the encoding task */ 858 btif_a2dp_encoder_init(); 859 860 /* Build the media task configuration */ 861 mfeed.feeding = media_feeding; 862 mfeed.feeding_mode = BTIF_AV_FEEDING_ASYNCHRONOUS; 863 /* Send message to Media task to configure transcoding */ 864 btif_media_task_audio_feeding_init_req(&mfeed); 865 } 866 867 GKI_enable(); 868} 869 870 871/***************************************************************************** 872** 873** Function btif_a2dp_on_idle 874** 875** Description 876** 877** Returns 878** 879*******************************************************************************/ 880 881void btif_a2dp_on_idle(void) 882{ 883 APPL_TRACE_EVENT("## ON A2DP IDLE ##"); 884 if (btif_media_cb.peer_sep == AVDT_TSEP_SNK) 885 { 886 /* Make sure media task is stopped */ 887 btif_media_task_stop_aa_req(); 888 } 889 890 bta_av_co_init(); 891#if (BTA_AV_SINK_INCLUDED == TRUE) 892 if (btif_media_cb.peer_sep == AVDT_TSEP_SRC) 893 { 894 btif_media_cb.rx_flush = TRUE; 895 btif_media_task_aa_rx_flush_req(); 896 btif_media_task_stop_decoding_req(); 897 btif_media_task_clear_track(); 898 APPL_TRACE_DEBUG("Stopped BT track"); 899 } 900#endif 901} 902 903/***************************************************************************** 904** 905** Function btif_a2dp_on_open 906** 907** Description 908** 909** Returns 910** 911*******************************************************************************/ 912 913void btif_a2dp_on_open(void) 914{ 915 APPL_TRACE_EVENT("## ON A2DP OPEN ##"); 916 917 /* always use callback to notify socket events */ 918 UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb); 919} 920 921/******************************************************************************* 922 ** 923 ** Function btif_media_task_clear_track 924 ** 925 ** Description 926 ** 927 ** Returns TRUE is success 928 ** 929 *******************************************************************************/ 930BOOLEAN btif_media_task_clear_track(void) 931{ 932 BT_HDR *p_buf; 933 934 if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) 935 { 936 return FALSE; 937 } 938 939 p_buf->event = BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK; 940 941 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 942 return TRUE; 943} 944/******************************************************************************* 945 ** 946 ** Function btif_media_task_stop_decoding_req 947 ** 948 ** Description 949 ** 950 ** Returns TRUE is success 951 ** 952 *******************************************************************************/ 953BOOLEAN btif_media_task_stop_decoding_req(void) 954{ 955 BT_HDR *p_buf; 956 957 if (!btif_media_cb.is_rx_timer) 958 return TRUE; /* if timer is not running no need to send message */ 959 960 if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) 961 { 962 return FALSE; 963 } 964 965 p_buf->event = BTIF_MEDIA_AUDIO_SINK_STOP_DECODING; 966 967 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 968 return TRUE; 969} 970 971/******************************************************************************* 972 ** 973 ** Function btif_media_task_start_decoding_req 974 ** 975 ** Description 976 ** 977 ** Returns TRUE is success 978 ** 979 *******************************************************************************/ 980BOOLEAN btif_media_task_start_decoding_req(void) 981{ 982 BT_HDR *p_buf; 983 984 if(btif_media_cb.is_rx_timer) 985 return FALSE; /* if timer is already running no need to send message */ 986 987 if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) 988 { 989 return FALSE; 990 } 991 992 p_buf->event = BTIF_MEDIA_AUDIO_SINK_START_DECODING; 993 994 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 995 return TRUE; 996} 997 998/***************************************************************************** 999** 1000** Function btif_reset_decoder 1001** 1002** Description 1003** 1004** Returns 1005** 1006*******************************************************************************/ 1007 1008void btif_reset_decoder(UINT8 *p_av) 1009{ 1010 APPL_TRACE_EVENT("btif_reset_decoder"); 1011 APPL_TRACE_DEBUG("btif_reset_decoder p_codec_info[%x:%x:%x:%x:%x:%x]", 1012 p_av[1], p_av[2], p_av[3], 1013 p_av[4], p_av[5], p_av[6]); 1014 1015 tBTIF_MEDIA_SINK_CFG_UPDATE *p_buf; 1016 if (NULL == (p_buf = GKI_getbuf(sizeof(tBTIF_MEDIA_SINK_CFG_UPDATE)))) 1017 { 1018 APPL_TRACE_EVENT("btif_reset_decoder No Buffer "); 1019 return; 1020 } 1021 1022 memcpy(p_buf->codec_info,p_av, AVDT_CODEC_SIZE); 1023 p_buf->hdr.event = BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE; 1024 1025 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1026} 1027 1028/***************************************************************************** 1029** 1030** Function btif_a2dp_on_started 1031** 1032** Description 1033** 1034** Returns 1035** 1036*******************************************************************************/ 1037 1038BOOLEAN btif_a2dp_on_started(tBTA_AV_START *p_av, BOOLEAN pending_start) 1039{ 1040 tBTIF_STATUS status; 1041 BOOLEAN ack = FALSE; 1042 1043 APPL_TRACE_EVENT("## ON A2DP STARTED ##"); 1044 1045 if (p_av == NULL) 1046 { 1047 /* ack back a local start request */ 1048 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 1049 return TRUE; 1050 } 1051 1052 if (p_av->status == BTA_AV_SUCCESS) 1053 { 1054 if (p_av->suspending == FALSE) 1055 { 1056 if (p_av->initiator) 1057 { 1058 if (pending_start) { 1059 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); 1060 ack = TRUE; 1061 } 1062 } 1063 else 1064 { 1065 /* we were remotely started, make sure codec 1066 is setup before datapath is started */ 1067 btif_a2dp_setup_codec(); 1068 } 1069 1070 /* media task is autostarted upon a2dp audiopath connection */ 1071 } 1072 } 1073 else if (pending_start) 1074 { 1075 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); 1076 ack = TRUE; 1077 } 1078 return ack; 1079} 1080 1081 1082/***************************************************************************** 1083** 1084** Function btif_a2dp_ack_fail 1085** 1086** Description 1087** 1088** Returns 1089** 1090*******************************************************************************/ 1091 1092void btif_a2dp_ack_fail(void) 1093{ 1094 tBTIF_STATUS status; 1095 1096 APPL_TRACE_EVENT("## A2DP_CTRL_ACK_FAILURE ##"); 1097 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); 1098} 1099 1100/***************************************************************************** 1101** 1102** Function btif_a2dp_on_stopped 1103** 1104** Description 1105** 1106** Returns 1107** 1108*******************************************************************************/ 1109 1110void btif_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av) 1111{ 1112 APPL_TRACE_EVENT("## ON A2DP STOPPED ##"); 1113 if (btif_media_cb.peer_sep == AVDT_TSEP_SRC) /* Handling for A2DP SINK cases*/ 1114 { 1115 btif_media_cb.rx_flush = TRUE; 1116 btif_media_task_aa_rx_flush_req(); 1117 btif_media_task_stop_decoding_req(); 1118 UIPC_Close(UIPC_CH_ID_AV_AUDIO); 1119 btif_media_cb.data_channel_open = FALSE; 1120 return; 1121 } 1122 /* allow using this api for other than suspend */ 1123 if (p_av != NULL) 1124 { 1125 if (p_av->status != BTA_AV_SUCCESS) 1126 { 1127 APPL_TRACE_EVENT("AV STOP FAILED (%d)", p_av->status); 1128 1129 if (p_av->initiator) 1130 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); 1131 return; 1132 } 1133 } 1134 1135 /* ensure tx frames are immediately suspended */ 1136 btif_media_cb.tx_flush = 1; 1137 1138 /* request to stop media task */ 1139 btif_media_task_aa_tx_flush_req(); 1140 btif_media_task_stop_aa_req(); 1141 1142 /* once stream is fully stopped we will ack back */ 1143} 1144 1145 1146/***************************************************************************** 1147** 1148** Function btif_a2dp_on_suspended 1149** 1150** Description 1151** 1152** Returns 1153** 1154*******************************************************************************/ 1155 1156void btif_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av) 1157{ 1158 APPL_TRACE_EVENT("## ON A2DP SUSPENDED ##"); 1159 if (btif_media_cb.peer_sep == AVDT_TSEP_SRC) 1160 { 1161 btif_media_cb.rx_flush = TRUE; 1162 btif_media_task_aa_rx_flush_req(); 1163 btif_media_task_stop_decoding_req(); 1164 return; 1165 } 1166 1167 /* check for status failures */ 1168 if (p_av->status != BTA_AV_SUCCESS) 1169 { 1170 if (p_av->initiator == TRUE) 1171 a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); 1172 } 1173 1174 /* once stream is fully stopped we will ack back */ 1175 1176 /* ensure tx frames are immediately flushed */ 1177 btif_media_cb.tx_flush = 1; 1178 1179 /* stop timer tick */ 1180 btif_media_task_stop_aa_req(); 1181} 1182 1183/* when true media task discards any rx frames */ 1184void btif_a2dp_set_rx_flush(BOOLEAN enable) 1185{ 1186 APPL_TRACE_EVENT("## DROP RX %d ##", enable); 1187 btif_media_cb.rx_flush = enable; 1188} 1189 1190/* when true media task discards any tx frames */ 1191void btif_a2dp_set_tx_flush(BOOLEAN enable) 1192{ 1193 APPL_TRACE_EVENT("## DROP TX %d ##", enable); 1194 btif_media_cb.tx_flush = enable; 1195} 1196 1197#if (BTA_AV_SINK_INCLUDED == TRUE) 1198/******************************************************************************* 1199 ** 1200 ** Function btif_media_task_avk_handle_timer 1201 ** 1202 ** Description 1203 ** 1204 ** Returns void 1205 ** 1206 *******************************************************************************/ 1207static void btif_media_task_avk_handle_timer ( void ) 1208{ 1209 UINT8 count; 1210 tBT_SBC_HDR *p_msg; 1211 int num_sbc_frames; 1212 int num_frames_to_process; 1213 1214 count = btif_media_cb.RxSbcQ.count; 1215 if (0 == count) 1216 { 1217 APPL_TRACE_DEBUG(" QUE EMPTY "); 1218 } 1219 else 1220 { 1221 if (btif_media_cb.rx_flush == TRUE) 1222 { 1223 btif_media_flush_q(&(btif_media_cb.RxSbcQ)); 1224 return; 1225 } 1226 1227 num_frames_to_process = btif_media_cb.frames_to_process; 1228 APPL_TRACE_DEBUG(" Process Frames + "); 1229 1230 do 1231 { 1232 p_msg = (tBT_SBC_HDR *)GKI_getfirst(&(btif_media_cb.RxSbcQ)); 1233 if (p_msg == NULL) 1234 return; 1235 num_sbc_frames = p_msg->num_frames_to_be_processed; /* num of frames in Que Packets */ 1236 APPL_TRACE_DEBUG(" Frames left in topmost packet %d", num_sbc_frames); 1237 APPL_TRACE_DEBUG(" Remaining frames to process in tick %d", num_frames_to_process); 1238 APPL_TRACE_DEBUG(" Num of Packets in Que %d", btif_media_cb.RxSbcQ.count); 1239 1240 if ( num_sbc_frames > num_frames_to_process) /* Que Packet has more frames*/ 1241 { 1242 p_msg->num_frames_to_be_processed= num_frames_to_process; 1243 btif_media_task_handle_inc_media(p_msg); 1244 p_msg->num_frames_to_be_processed = num_sbc_frames - num_frames_to_process; 1245 num_frames_to_process = 0; 1246 break; 1247 } 1248 else /* Que packet has less frames */ 1249 { 1250 btif_media_task_handle_inc_media(p_msg); 1251 p_msg = (tBT_SBC_HDR *)GKI_dequeue(&(btif_media_cb.RxSbcQ)); 1252 if( p_msg == NULL ) 1253 { 1254 APPL_TRACE_ERROR("Insufficient data in que "); 1255 break; 1256 } 1257 num_frames_to_process = num_frames_to_process - p_msg->num_frames_to_be_processed; 1258 GKI_freebuf(p_msg); 1259 } 1260 }while(num_frames_to_process > 0); 1261 1262 APPL_TRACE_DEBUG(" Process Frames - "); 1263 } 1264} 1265#endif 1266 1267/******************************************************************************* 1268 ** 1269 ** Function btif_media_task_aa_handle_timer 1270 ** 1271 ** Description 1272 ** 1273 ** Returns void 1274 ** 1275 *******************************************************************************/ 1276 1277static void btif_media_task_aa_handle_timer(void) 1278{ 1279#if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) 1280 static UINT16 Debug = 0; 1281 APPL_TRACE_DEBUG("btif_media_task_aa_handle_timer: %d", Debug++); 1282#endif 1283 1284 log_tstamps_us("media task tx timer"); 1285 1286#if (BTA_AV_INCLUDED == TRUE) 1287 if(btif_media_cb.is_tx_timer == TRUE) 1288 { 1289 btif_media_send_aa_frame(); 1290 } 1291 else 1292 { 1293 APPL_TRACE_ERROR("ERROR Media task Scheduled after Suspend"); 1294 } 1295#endif 1296} 1297 1298#if (BTA_AV_INCLUDED == TRUE) 1299/******************************************************************************* 1300 ** 1301 ** Function btif_media_task_aa_handle_timer 1302 ** 1303 ** Description 1304 ** 1305 ** Returns void 1306 ** 1307 *******************************************************************************/ 1308static void btif_media_task_aa_handle_uipc_rx_rdy(void) 1309{ 1310#if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) 1311 static UINT16 Debug = 0; 1312 APPL_TRACE_DEBUG("btif_media_task_aa_handle_uipc_rx_rdy: %d", Debug++); 1313#endif 1314 1315 /* process all the UIPC data */ 1316 btif_media_aa_prep_2_send(0xFF); 1317 1318 /* send it */ 1319 VERBOSE("btif_media_task_aa_handle_uipc_rx_rdy calls bta_av_ci_src_data_ready"); 1320 bta_av_ci_src_data_ready(BTA_AV_CHNL_AUDIO); 1321} 1322#endif 1323 1324/******************************************************************************* 1325 ** 1326 ** Function btif_media_task_init 1327 ** 1328 ** Description 1329 ** 1330 ** Returns void 1331 ** 1332 *******************************************************************************/ 1333 1334void btif_media_task_init(void) 1335{ 1336 memset(&(btif_media_cb), 0, sizeof(btif_media_cb)); 1337 1338 UIPC_Init(NULL); 1339 1340#if (BTA_AV_INCLUDED == TRUE) 1341 UIPC_Open(UIPC_CH_ID_AV_CTRL , btif_a2dp_ctrl_cb); 1342#endif 1343} 1344/******************************************************************************* 1345 ** 1346 ** Function btif_media_task 1347 ** 1348 ** Description Task for SBC encoder. This task receives an 1349 ** event when the waveIn interface has a pcm data buffer 1350 ** ready. On receiving the event, handle all ready pcm 1351 ** data buffers. If stream is started, run the SBC encoder 1352 ** on each chunk of pcm samples and build an output packet 1353 ** consisting of one or more encoded SBC frames. 1354 ** 1355 ** Returns void 1356 ** 1357 *******************************************************************************/ 1358int btif_media_task(void *p) 1359{ 1360 UINT16 event; 1361 BT_HDR *p_msg; 1362 UNUSED(p); 1363 1364 VERBOSE("================ MEDIA TASK STARTING ================"); 1365 1366 btif_media_task_init(); 1367 1368 media_task_running = MEDIA_TASK_STATE_ON; 1369 1370 raise_priority_a2dp(TASK_HIGH_MEDIA); 1371 1372 while (1) 1373 { 1374 event = GKI_wait(0xffff, 0); 1375 1376 VERBOSE("================= MEDIA TASK EVENT %d ===============", event); 1377 1378 if (event & BTIF_MEDIA_TASK_CMD) 1379 { 1380 /* Process all messages in the queue */ 1381 while ((p_msg = (BT_HDR *) GKI_read_mbox(BTIF_MEDIA_TASK_CMD_MBOX)) != NULL) 1382 { 1383 btif_media_task_handle_cmd(p_msg); 1384 } 1385 } 1386 1387 if (event & BTIF_MEDIA_TASK_DATA) 1388 { 1389 VERBOSE("================= Received Media Packets %d ===============", event); 1390 /* Process all messages in the queue */ 1391 while ((p_msg = (BT_HDR *) GKI_read_mbox(BTIF_MEDIA_TASK_DATA_MBOX)) != NULL) 1392 { 1393 btif_media_task_handle_media(p_msg); 1394 } 1395 } 1396 1397 if (event & BTIF_MEDIA_AA_TASK_TIMER) 1398 { 1399 /* advance audio timer expiration */ 1400 btif_media_task_aa_handle_timer(); 1401 } 1402 1403 if (event & BTIF_MEDIA_AVK_TASK_TIMER) 1404 { 1405#if (BTA_AV_SINK_INCLUDED == TRUE) 1406 /* advance audio timer expiration for a2dp sink */ 1407 btif_media_task_avk_handle_timer(); 1408#endif 1409 } 1410 1411 1412 1413 VERBOSE("=============== MEDIA TASK EVENT %d DONE ============", event); 1414 1415 /* When we get this event we exit the task - should only happen on GKI_shutdown */ 1416 if (event & BTIF_MEDIA_TASK_KILL) 1417 { 1418 /* make sure no channels are restarted while shutting down */ 1419 media_task_running = MEDIA_TASK_STATE_SHUTTING_DOWN; 1420 1421 /* this calls blocks until uipc is fully closed */ 1422 UIPC_Close(UIPC_CH_ID_ALL); 1423 break; 1424 } 1425 } 1426 1427 /* Clear media task flag */ 1428 media_task_running = MEDIA_TASK_STATE_OFF; 1429 1430 APPL_TRACE_DEBUG("MEDIA TASK EXITING"); 1431 1432 return 0; 1433} 1434 1435 1436/******************************************************************************* 1437 ** 1438 ** Function btif_media_task_send_cmd_evt 1439 ** 1440 ** Description 1441 ** 1442 ** Returns TRUE is success 1443 ** 1444 *******************************************************************************/ 1445BOOLEAN btif_media_task_send_cmd_evt(UINT16 Evt) 1446{ 1447 BT_HDR *p_buf; 1448 if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) 1449 { 1450 return FALSE; 1451 } 1452 1453 p_buf->event = Evt; 1454 1455 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1456 return TRUE; 1457} 1458 1459/******************************************************************************* 1460 ** 1461 ** Function btif_media_flush_q 1462 ** 1463 ** Description 1464 ** 1465 ** Returns void 1466 ** 1467 *******************************************************************************/ 1468static void btif_media_flush_q(BUFFER_Q *p_q) 1469{ 1470 while (!GKI_queue_is_empty(p_q)) 1471 { 1472 GKI_freebuf(GKI_dequeue(p_q)); 1473 } 1474} 1475 1476 1477/******************************************************************************* 1478 ** 1479 ** Function btif_media_task_handle_cmd 1480 ** 1481 ** Description 1482 ** 1483 ** Returns void 1484 ** 1485 *******************************************************************************/ 1486static void btif_media_task_handle_cmd(BT_HDR *p_msg) 1487{ 1488 VERBOSE("btif_media_task_handle_cmd : %d %s", p_msg->event, 1489 dump_media_event(p_msg->event)); 1490 1491 switch (p_msg->event) 1492 { 1493#if (BTA_AV_INCLUDED == TRUE) 1494 case BTIF_MEDIA_START_AA_TX: 1495 btif_media_task_aa_start_tx(); 1496 break; 1497 case BTIF_MEDIA_STOP_AA_TX: 1498 btif_media_task_aa_stop_tx(); 1499 break; 1500 case BTIF_MEDIA_SBC_ENC_INIT: 1501 btif_media_task_enc_init(p_msg); 1502 break; 1503 case BTIF_MEDIA_SBC_ENC_UPDATE: 1504 btif_media_task_enc_update(p_msg); 1505 break; 1506 case BTIF_MEDIA_AUDIO_FEEDING_INIT: 1507 btif_media_task_audio_feeding_init(p_msg); 1508 break; 1509 case BTIF_MEDIA_FLUSH_AA_TX: 1510 btif_media_task_aa_tx_flush(p_msg); 1511 break; 1512 case BTIF_MEDIA_UIPC_RX_RDY: 1513 btif_media_task_aa_handle_uipc_rx_rdy(); 1514 break; 1515 case BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE: 1516#if (BTA_AV_SINK_INCLUDED == TRUE) 1517 btif_media_task_aa_handle_decoder_reset(p_msg); 1518#endif 1519 break; 1520 case BTIF_MEDIA_AUDIO_SINK_START_DECODING: 1521 btif_media_task_aa_handle_start_decoding(); 1522 break; 1523 case BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK: 1524#if (BTA_AV_SINK_INCLUDED == TRUE) 1525 btif_media_task_aa_handle_clear_track(); 1526#endif 1527 break; 1528 case BTIF_MEDIA_AUDIO_SINK_STOP_DECODING: 1529 btif_media_task_aa_handle_stop_decoding(); 1530 break; 1531 case BTIF_MEDIA_FLUSH_AA_RX: 1532 btif_media_task_aa_rx_flush(); 1533 break; 1534#endif 1535 default: 1536 APPL_TRACE_ERROR("ERROR in btif_media_task_handle_cmd unknown event %d", p_msg->event); 1537 } 1538 GKI_freebuf(p_msg); 1539 VERBOSE("btif_media_task_handle_cmd : %s DONE", dump_media_event(p_msg->event)); 1540} 1541 1542#if (BTA_AV_SINK_INCLUDED == TRUE) 1543/******************************************************************************* 1544 ** 1545 ** Function btif_media_task_handle_inc_media 1546 ** 1547 ** Description 1548 ** 1549 ** Returns void 1550 ** 1551 *******************************************************************************/ 1552static void btif_media_task_handle_inc_media(tBT_SBC_HDR*p_msg) 1553{ 1554 UINT8 *sbc_start_frame = ((UINT8*)(p_msg + 1) + p_msg->offset + 1); 1555 int count; 1556 UINT32 pcmBytes, availPcmBytes; 1557 OI_INT16 *pcmDataPointer = pcmData; /*Will be overwritten on next packet receipt*/ 1558 OI_STATUS status; 1559 int num_sbc_frames = p_msg->num_frames_to_be_processed; 1560 UINT32 sbc_frame_len = p_msg->len - 1; 1561 availPcmBytes = 2*sizeof(pcmData); 1562 1563 if ((btif_media_cb.peer_sep == AVDT_TSEP_SNK) || (btif_media_cb.rx_flush)) 1564 { 1565 APPL_TRACE_DEBUG(" State Changed happened in this tick "); 1566 return; 1567 } 1568 1569 // ignore data if no one is listening 1570 if (!btif_media_cb.data_channel_open) 1571 return; 1572 1573 APPL_TRACE_DEBUG("Number of sbc frames %d, frame_len %d", num_sbc_frames, sbc_frame_len); 1574 1575 for(count = 0; count < num_sbc_frames && sbc_frame_len != 0; count ++) 1576 { 1577 pcmBytes = availPcmBytes; 1578 status = OI_CODEC_SBC_DecodeFrame(&context, (const OI_BYTE**)&sbc_start_frame, 1579 (OI_UINT32 *)&sbc_frame_len, 1580 (OI_INT16 *)pcmDataPointer, 1581 (OI_UINT32 *)&pcmBytes); 1582 if (!OI_SUCCESS(status)) { 1583 APPL_TRACE_ERROR("Decoding failure: %d\n", status); 1584 break; 1585 } 1586 availPcmBytes -= pcmBytes; 1587 pcmDataPointer += pcmBytes/2; 1588 p_msg->offset += (p_msg->len - 1) - sbc_frame_len; 1589 p_msg->len = sbc_frame_len + 1; 1590 } 1591 1592 UIPC_Send(UIPC_CH_ID_AV_AUDIO, 0, (UINT8 *)pcmData, (2*sizeof(pcmData) - availPcmBytes)); 1593} 1594#endif 1595 1596/******************************************************************************* 1597 ** 1598 ** Function btif_media_task_handle_media 1599 ** 1600 ** Description 1601 ** 1602 ** Returns void 1603 ** 1604 *******************************************************************************/ 1605static void btif_media_task_handle_media(BT_HDR*p_msg) 1606{ 1607 APPL_TRACE_DEBUG(" btif_media_task_handle_media "); 1608 GKI_freebuf(p_msg); 1609} 1610#if (BTA_AV_INCLUDED == TRUE) 1611/******************************************************************************* 1612 ** 1613 ** Function btif_media_task_enc_init_req 1614 ** 1615 ** Description 1616 ** 1617 ** Returns TRUE is success 1618 ** 1619 *******************************************************************************/ 1620BOOLEAN btif_media_task_enc_init_req(tBTIF_MEDIA_INIT_AUDIO *p_msg) 1621{ 1622 tBTIF_MEDIA_INIT_AUDIO *p_buf; 1623 if (NULL == (p_buf = GKI_getbuf(sizeof(tBTIF_MEDIA_INIT_AUDIO)))) 1624 { 1625 return FALSE; 1626 } 1627 1628 memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_INIT_AUDIO)); 1629 p_buf->hdr.event = BTIF_MEDIA_SBC_ENC_INIT; 1630 1631 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1632 return TRUE; 1633} 1634 1635/******************************************************************************* 1636 ** 1637 ** Function btif_media_task_enc_update_req 1638 ** 1639 ** Description 1640 ** 1641 ** Returns TRUE is success 1642 ** 1643 *******************************************************************************/ 1644BOOLEAN btif_media_task_enc_update_req(tBTIF_MEDIA_UPDATE_AUDIO *p_msg) 1645{ 1646 tBTIF_MEDIA_UPDATE_AUDIO *p_buf; 1647 if (NULL == (p_buf = GKI_getbuf(sizeof(tBTIF_MEDIA_UPDATE_AUDIO)))) 1648 { 1649 return FALSE; 1650 } 1651 1652 memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_UPDATE_AUDIO)); 1653 p_buf->hdr.event = BTIF_MEDIA_SBC_ENC_UPDATE; 1654 1655 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1656 return TRUE; 1657} 1658 1659/******************************************************************************* 1660 ** 1661 ** Function btif_media_task_audio_feeding_init_req 1662 ** 1663 ** Description 1664 ** 1665 ** Returns TRUE is success 1666 ** 1667 *******************************************************************************/ 1668BOOLEAN btif_media_task_audio_feeding_init_req(tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_msg) 1669{ 1670 tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_buf; 1671 if (NULL == (p_buf = GKI_getbuf(sizeof(tBTIF_MEDIA_INIT_AUDIO_FEEDING)))) 1672 { 1673 return FALSE; 1674 } 1675 1676 memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_INIT_AUDIO_FEEDING)); 1677 p_buf->hdr.event = BTIF_MEDIA_AUDIO_FEEDING_INIT; 1678 1679 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1680 return TRUE; 1681} 1682 1683/******************************************************************************* 1684 ** 1685 ** Function btif_media_task_start_aa_req 1686 ** 1687 ** Description 1688 ** 1689 ** Returns TRUE is success 1690 ** 1691 *******************************************************************************/ 1692BOOLEAN btif_media_task_start_aa_req(void) 1693{ 1694 BT_HDR *p_buf; 1695 if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) 1696 { 1697 APPL_TRACE_EVENT("GKI failed"); 1698 return FALSE; 1699 } 1700 1701 p_buf->event = BTIF_MEDIA_START_AA_TX; 1702 1703 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1704 return TRUE; 1705} 1706 1707/******************************************************************************* 1708 ** 1709 ** Function btif_media_task_stop_aa_req 1710 ** 1711 ** Description 1712 ** 1713 ** Returns TRUE is success 1714 ** 1715 *******************************************************************************/ 1716BOOLEAN btif_media_task_stop_aa_req(void) 1717{ 1718 BT_HDR *p_buf; 1719 if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) 1720 { 1721 return FALSE; 1722 } 1723 1724 p_buf->event = BTIF_MEDIA_STOP_AA_TX; 1725 1726 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1727 return TRUE; 1728} 1729/******************************************************************************* 1730 ** 1731 ** Function btif_media_task_aa_rx_flush_req 1732 ** 1733 ** Description 1734 ** 1735 ** Returns TRUE is success 1736 ** 1737 *******************************************************************************/ 1738BOOLEAN btif_media_task_aa_rx_flush_req(void) 1739{ 1740 BT_HDR *p_buf; 1741 1742 if (GKI_queue_is_empty(&(btif_media_cb.RxSbcQ))== TRUE) /* Que is already empty */ 1743 return TRUE; 1744 1745 if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) 1746 { 1747 return FALSE; 1748 } 1749 1750 p_buf->event = BTIF_MEDIA_FLUSH_AA_RX; 1751 1752 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1753 return TRUE; 1754} 1755 1756/******************************************************************************* 1757 ** 1758 ** Function btif_media_task_aa_tx_flush_req 1759 ** 1760 ** Description 1761 ** 1762 ** Returns TRUE is success 1763 ** 1764 *******************************************************************************/ 1765BOOLEAN btif_media_task_aa_tx_flush_req(void) 1766{ 1767 BT_HDR *p_buf; 1768 if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) 1769 { 1770 return FALSE; 1771 } 1772 1773 p_buf->event = BTIF_MEDIA_FLUSH_AA_TX; 1774 1775 GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); 1776 return TRUE; 1777} 1778/******************************************************************************* 1779 ** 1780 ** Function btif_media_task_aa_rx_flush 1781 ** 1782 ** Description 1783 ** 1784 ** Returns void 1785 ** 1786 *******************************************************************************/ 1787static void btif_media_task_aa_rx_flush(void) 1788{ 1789 /* Flush all enqueued GKI SBC buffers (encoded) */ 1790 APPL_TRACE_DEBUG("btif_media_task_aa_rx_flush"); 1791 1792 btif_media_flush_q(&(btif_media_cb.RxSbcQ)); 1793} 1794 1795 1796/******************************************************************************* 1797 ** 1798 ** Function btif_media_task_aa_tx_flush 1799 ** 1800 ** Description 1801 ** 1802 ** Returns void 1803 ** 1804 *******************************************************************************/ 1805static void btif_media_task_aa_tx_flush(BT_HDR *p_msg) 1806{ 1807 UNUSED(p_msg); 1808 1809 /* Flush all enqueued GKI music buffers (encoded) */ 1810 APPL_TRACE_DEBUG("btif_media_task_aa_tx_flush"); 1811 1812 btif_media_cb.media_feeding_state.pcm.counter = 0; 1813 btif_media_cb.media_feeding_state.pcm.aa_feed_residue = 0; 1814 1815 btif_media_flush_q(&(btif_media_cb.TxAaQ)); 1816 1817 UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_REQ_RX_FLUSH, NULL); 1818} 1819 1820/******************************************************************************* 1821 ** 1822 ** Function btif_media_task_enc_init 1823 ** 1824 ** Description Initialize encoding task 1825 ** 1826 ** Returns void 1827 ** 1828 *******************************************************************************/ 1829static void btif_media_task_enc_init(BT_HDR *p_msg) 1830{ 1831 tBTIF_MEDIA_INIT_AUDIO *pInitAudio = (tBTIF_MEDIA_INIT_AUDIO *) p_msg; 1832 1833 APPL_TRACE_DEBUG("btif_media_task_enc_init"); 1834 1835 btif_media_cb.timestamp = 0; 1836 1837 /* SBC encoder config (enforced even if not used) */ 1838 btif_media_cb.encoder.s16ChannelMode = pInitAudio->ChannelMode; 1839 btif_media_cb.encoder.s16NumOfSubBands = pInitAudio->NumOfSubBands; 1840 btif_media_cb.encoder.s16NumOfBlocks = pInitAudio->NumOfBlocks; 1841 btif_media_cb.encoder.s16AllocationMethod = pInitAudio->AllocationMethod; 1842 btif_media_cb.encoder.s16SamplingFreq = pInitAudio->SamplingFreq; 1843 1844 btif_media_cb.encoder.u16BitRate = btif_media_task_get_sbc_rate(); 1845 1846 /* Default transcoding is PCM to SBC, modified by feeding configuration */ 1847 btif_media_cb.TxTranscoding = BTIF_MEDIA_TRSCD_PCM_2_SBC; 1848 btif_media_cb.TxAaMtuSize = ((BTIF_MEDIA_AA_BUF_SIZE-BTIF_MEDIA_AA_SBC_OFFSET-sizeof(BT_HDR)) 1849 < pInitAudio->MtuSize) ? (BTIF_MEDIA_AA_BUF_SIZE - BTIF_MEDIA_AA_SBC_OFFSET 1850 - sizeof(BT_HDR)) : pInitAudio->MtuSize; 1851 1852 APPL_TRACE_EVENT("btif_media_task_enc_init busy %d, mtu %d, peer mtu %d", 1853 btif_media_cb.busy_level, btif_media_cb.TxAaMtuSize, pInitAudio->MtuSize); 1854 APPL_TRACE_EVENT(" ch mode %d, subnd %d, nb blk %d, alloc %d, rate %d, freq %d", 1855 btif_media_cb.encoder.s16ChannelMode, btif_media_cb.encoder.s16NumOfSubBands, 1856 btif_media_cb.encoder.s16NumOfBlocks, 1857 btif_media_cb.encoder.s16AllocationMethod, btif_media_cb.encoder.u16BitRate, 1858 btif_media_cb.encoder.s16SamplingFreq); 1859 1860 /* Reset entirely the SBC encoder */ 1861 SBC_Encoder_Init(&(btif_media_cb.encoder)); 1862 APPL_TRACE_DEBUG("btif_media_task_enc_init bit pool %d", btif_media_cb.encoder.s16BitPool); 1863} 1864 1865/******************************************************************************* 1866 ** 1867 ** Function btif_media_task_enc_update 1868 ** 1869 ** Description Update encoding task 1870 ** 1871 ** Returns void 1872 ** 1873 *******************************************************************************/ 1874 1875static void btif_media_task_enc_update(BT_HDR *p_msg) 1876{ 1877 tBTIF_MEDIA_UPDATE_AUDIO * pUpdateAudio = (tBTIF_MEDIA_UPDATE_AUDIO *) p_msg; 1878 SBC_ENC_PARAMS *pstrEncParams = &btif_media_cb.encoder; 1879 UINT16 s16SamplingFreq; 1880 SINT16 s16BitPool = 0; 1881 SINT16 s16BitRate; 1882 SINT16 s16FrameLen; 1883 UINT8 protect = 0; 1884 1885 APPL_TRACE_DEBUG("btif_media_task_enc_update : minmtu %d, maxbp %d minbp %d", 1886 pUpdateAudio->MinMtuSize, pUpdateAudio->MaxBitPool, pUpdateAudio->MinBitPool); 1887 1888 /* Only update the bitrate and MTU size while timer is running to make sure it has been initialized */ 1889 //if (btif_media_cb.is_tx_timer) 1890 { 1891 btif_media_cb.TxAaMtuSize = ((BTIF_MEDIA_AA_BUF_SIZE - 1892 BTIF_MEDIA_AA_SBC_OFFSET - sizeof(BT_HDR)) 1893 < pUpdateAudio->MinMtuSize) ? (BTIF_MEDIA_AA_BUF_SIZE - BTIF_MEDIA_AA_SBC_OFFSET 1894 - sizeof(BT_HDR)) : pUpdateAudio->MinMtuSize; 1895 1896 /* Set the initial target bit rate */ 1897 pstrEncParams->u16BitRate = btif_media_task_get_sbc_rate(); 1898 1899 if (pstrEncParams->s16SamplingFreq == SBC_sf16000) 1900 s16SamplingFreq = 16000; 1901 else if (pstrEncParams->s16SamplingFreq == SBC_sf32000) 1902 s16SamplingFreq = 32000; 1903 else if (pstrEncParams->s16SamplingFreq == SBC_sf44100) 1904 s16SamplingFreq = 44100; 1905 else 1906 s16SamplingFreq = 48000; 1907 1908 do 1909 { 1910 if (pstrEncParams->s16NumOfBlocks == 0 || pstrEncParams->s16NumOfSubBands == 0 1911 || pstrEncParams->s16NumOfChannels == 0) 1912 { 1913 APPL_TRACE_ERROR("btif_media_task_enc_update() - Avoiding division by zero..."); 1914 APPL_TRACE_ERROR("btif_media_task_enc_update() - block=%d, subBands=%d, channels=%d", 1915 pstrEncParams->s16NumOfBlocks, pstrEncParams->s16NumOfSubBands, 1916 pstrEncParams->s16NumOfChannels); 1917 break; 1918 } 1919 1920 if ((pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO) || 1921 (pstrEncParams->s16ChannelMode == SBC_STEREO) ) 1922 { 1923 s16BitPool = (SINT16)( (pstrEncParams->u16BitRate * 1924 pstrEncParams->s16NumOfSubBands * 1000 / s16SamplingFreq) 1925 -( (32 + (4 * pstrEncParams->s16NumOfSubBands * 1926 pstrEncParams->s16NumOfChannels) 1927 + ( (pstrEncParams->s16ChannelMode - 2) * 1928 pstrEncParams->s16NumOfSubBands ) ) 1929 / pstrEncParams->s16NumOfBlocks) ); 1930 1931 s16FrameLen = 4 + (4*pstrEncParams->s16NumOfSubBands* 1932 pstrEncParams->s16NumOfChannels)/8 1933 + ( ((pstrEncParams->s16ChannelMode - 2) * 1934 pstrEncParams->s16NumOfSubBands) 1935 + (pstrEncParams->s16NumOfBlocks * s16BitPool) ) / 8; 1936 1937 s16BitRate = (8 * s16FrameLen * s16SamplingFreq) 1938 / (pstrEncParams->s16NumOfSubBands * 1939 pstrEncParams->s16NumOfBlocks * 1000); 1940 1941 if (s16BitRate > pstrEncParams->u16BitRate) 1942 s16BitPool--; 1943 1944 if(pstrEncParams->s16NumOfSubBands == 8) 1945 s16BitPool = (s16BitPool > 255) ? 255 : s16BitPool; 1946 else 1947 s16BitPool = (s16BitPool > 128) ? 128 : s16BitPool; 1948 } 1949 else 1950 { 1951 s16BitPool = (SINT16)( ((pstrEncParams->s16NumOfSubBands * 1952 pstrEncParams->u16BitRate * 1000) 1953 / (s16SamplingFreq * pstrEncParams->s16NumOfChannels)) 1954 -( ( (32 / pstrEncParams->s16NumOfChannels) + 1955 (4 * pstrEncParams->s16NumOfSubBands) ) 1956 / pstrEncParams->s16NumOfBlocks ) ); 1957 1958 pstrEncParams->s16BitPool = (s16BitPool > 1959 (16 * pstrEncParams->s16NumOfSubBands)) 1960 ? (16*pstrEncParams->s16NumOfSubBands) : s16BitPool; 1961 } 1962 1963 if (s16BitPool < 0) 1964 { 1965 s16BitPool = 0; 1966 } 1967 1968 APPL_TRACE_EVENT("bitpool candidate : %d (%d kbps)", 1969 s16BitPool, pstrEncParams->u16BitRate); 1970 1971 if (s16BitPool > pUpdateAudio->MaxBitPool) 1972 { 1973 APPL_TRACE_DEBUG("btif_media_task_enc_update computed bitpool too large (%d)", 1974 s16BitPool); 1975 /* Decrease bitrate */ 1976 btif_media_cb.encoder.u16BitRate -= BTIF_MEDIA_BITRATE_STEP; 1977 /* Record that we have decreased the bitrate */ 1978 protect |= 1; 1979 } 1980 else if (s16BitPool < pUpdateAudio->MinBitPool) 1981 { 1982 APPL_TRACE_WARNING("btif_media_task_enc_update computed bitpool too small (%d)", s16BitPool); 1983 1984 /* Increase bitrate */ 1985 UINT16 previous_u16BitRate = btif_media_cb.encoder.u16BitRate; 1986 btif_media_cb.encoder.u16BitRate += BTIF_MEDIA_BITRATE_STEP; 1987 /* Record that we have increased the bitrate */ 1988 protect |= 2; 1989 /* Check over-flow */ 1990 if (btif_media_cb.encoder.u16BitRate < previous_u16BitRate) 1991 protect |= 3; 1992 } 1993 else 1994 { 1995 break; 1996 } 1997 /* In case we have already increased and decreased the bitrate, just stop */ 1998 if (protect == 3) 1999 { 2000 APPL_TRACE_ERROR("btif_media_task_enc_update could not find bitpool in range"); 2001 break; 2002 } 2003 } while (1); 2004 2005 /* Finally update the bitpool in the encoder structure */ 2006 pstrEncParams->s16BitPool = s16BitPool; 2007 2008 APPL_TRACE_DEBUG("btif_media_task_enc_update final bit rate %d, final bit pool %d", 2009 btif_media_cb.encoder.u16BitRate, btif_media_cb.encoder.s16BitPool); 2010 2011 /* make sure we reinitialize encoder with new settings */ 2012 SBC_Encoder_Init(&(btif_media_cb.encoder)); 2013 } 2014} 2015 2016/******************************************************************************* 2017 ** 2018 ** Function btif_media_task_pcm2sbc_init 2019 ** 2020 ** Description Init encoding task for PCM to SBC according to feeding 2021 ** 2022 ** Returns void 2023 ** 2024 *******************************************************************************/ 2025static void btif_media_task_pcm2sbc_init(tBTIF_MEDIA_INIT_AUDIO_FEEDING * p_feeding) 2026{ 2027 BOOLEAN reconfig_needed = FALSE; 2028 2029 APPL_TRACE_DEBUG("PCM feeding:"); 2030 APPL_TRACE_DEBUG("sampling_freq:%d", p_feeding->feeding.cfg.pcm.sampling_freq); 2031 APPL_TRACE_DEBUG("num_channel:%d", p_feeding->feeding.cfg.pcm.num_channel); 2032 APPL_TRACE_DEBUG("bit_per_sample:%d", p_feeding->feeding.cfg.pcm.bit_per_sample); 2033 2034 /* Check the PCM feeding sampling_freq */ 2035 switch (p_feeding->feeding.cfg.pcm.sampling_freq) 2036 { 2037 case 8000: 2038 case 12000: 2039 case 16000: 2040 case 24000: 2041 case 32000: 2042 case 48000: 2043 /* For these sampling_freq the AV connection must be 48000 */ 2044 if (btif_media_cb.encoder.s16SamplingFreq != SBC_sf48000) 2045 { 2046 /* Reconfiguration needed at 48000 */ 2047 APPL_TRACE_DEBUG("SBC Reconfiguration needed at 48000"); 2048 btif_media_cb.encoder.s16SamplingFreq = SBC_sf48000; 2049 reconfig_needed = TRUE; 2050 } 2051 break; 2052 2053 case 11025: 2054 case 22050: 2055 case 44100: 2056 /* For these sampling_freq the AV connection must be 44100 */ 2057 if (btif_media_cb.encoder.s16SamplingFreq != SBC_sf44100) 2058 { 2059 /* Reconfiguration needed at 44100 */ 2060 APPL_TRACE_DEBUG("SBC Reconfiguration needed at 44100"); 2061 btif_media_cb.encoder.s16SamplingFreq = SBC_sf44100; 2062 reconfig_needed = TRUE; 2063 } 2064 break; 2065 default: 2066 APPL_TRACE_DEBUG("Feeding PCM sampling_freq unsupported"); 2067 break; 2068 } 2069 2070 /* Some AV Headsets do not support Mono => always ask for Stereo */ 2071 if (btif_media_cb.encoder.s16ChannelMode == SBC_MONO) 2072 { 2073 APPL_TRACE_DEBUG("SBC Reconfiguration needed in Stereo"); 2074 btif_media_cb.encoder.s16ChannelMode = SBC_JOINT_STEREO; 2075 reconfig_needed = TRUE; 2076 } 2077 2078 if (reconfig_needed != FALSE) 2079 { 2080 APPL_TRACE_DEBUG("btif_media_task_pcm2sbc_init :: mtu %d", btif_media_cb.TxAaMtuSize); 2081 APPL_TRACE_DEBUG("ch mode %d, nbsubd %d, nb %d, alloc %d, rate %d, freq %d", 2082 btif_media_cb.encoder.s16ChannelMode, 2083 btif_media_cb.encoder.s16NumOfSubBands, btif_media_cb.encoder.s16NumOfBlocks, 2084 btif_media_cb.encoder.s16AllocationMethod, btif_media_cb.encoder.u16BitRate, 2085 btif_media_cb.encoder.s16SamplingFreq); 2086 2087 SBC_Encoder_Init(&(btif_media_cb.encoder)); 2088 } 2089 else 2090 { 2091 APPL_TRACE_DEBUG("btif_media_task_pcm2sbc_init no SBC reconfig needed"); 2092 } 2093} 2094 2095 2096/******************************************************************************* 2097 ** 2098 ** Function btif_media_task_audio_feeding_init 2099 ** 2100 ** Description Initialize the audio path according to the feeding format 2101 ** 2102 ** Returns void 2103 ** 2104 *******************************************************************************/ 2105static void btif_media_task_audio_feeding_init(BT_HDR *p_msg) 2106{ 2107 tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_feeding = (tBTIF_MEDIA_INIT_AUDIO_FEEDING *) p_msg; 2108 2109 APPL_TRACE_DEBUG("btif_media_task_audio_feeding_init format:%d", p_feeding->feeding.format); 2110 2111 /* Save Media Feeding information */ 2112 btif_media_cb.feeding_mode = p_feeding->feeding_mode; 2113 btif_media_cb.media_feeding = p_feeding->feeding; 2114 2115 /* Handle different feeding formats */ 2116 switch (p_feeding->feeding.format) 2117 { 2118 case BTIF_AV_CODEC_PCM: 2119 btif_media_cb.TxTranscoding = BTIF_MEDIA_TRSCD_PCM_2_SBC; 2120 btif_media_task_pcm2sbc_init(p_feeding); 2121 break; 2122 2123 default : 2124 APPL_TRACE_ERROR("unknown feeding format %d", p_feeding->feeding.format); 2125 break; 2126 } 2127} 2128 2129int btif_a2dp_get_track_frequency(UINT8 frequency) { 2130 int freq = 48000; 2131 switch (frequency) { 2132 case A2D_SBC_IE_SAMP_FREQ_16: 2133 freq = 16000; 2134 break; 2135 case A2D_SBC_IE_SAMP_FREQ_32: 2136 freq = 32000; 2137 break; 2138 case A2D_SBC_IE_SAMP_FREQ_44: 2139 freq = 44100; 2140 break; 2141 case A2D_SBC_IE_SAMP_FREQ_48: 2142 freq = 48000; 2143 break; 2144 } 2145 return freq; 2146} 2147 2148int btif_a2dp_get_track_channel_count(UINT8 channeltype) { 2149 int count = 1; 2150 switch (channeltype) { 2151 case A2D_SBC_IE_CH_MD_MONO: 2152 count = 1; 2153 break; 2154 case A2D_SBC_IE_CH_MD_DUAL: 2155 case A2D_SBC_IE_CH_MD_STEREO: 2156 case A2D_SBC_IE_CH_MD_JOINT: 2157 count = 2; 2158 break; 2159 } 2160 return count; 2161} 2162 2163void btif_a2dp_set_peer_sep(UINT8 sep) { 2164 btif_media_cb.peer_sep = sep; 2165} 2166 2167/******************************************************************************* 2168 ** 2169 ** Function btif_media_task_aa_handle_stop_decoding 2170 ** 2171 ** Description 2172 ** 2173 ** Returns void 2174 ** 2175 *******************************************************************************/ 2176static void btif_media_task_aa_handle_stop_decoding(void ) 2177{ 2178 btif_media_cb.is_rx_timer = FALSE; 2179 GKI_stop_timer(BTIF_MEDIA_AVK_TASK_TIMER_ID); 2180} 2181 2182/******************************************************************************* 2183 ** 2184 ** Function btif_media_task_aa_handle_start_decoding 2185 ** 2186 ** Description 2187 ** 2188 ** Returns void 2189 ** 2190 *******************************************************************************/ 2191static void btif_media_task_aa_handle_start_decoding(void ) 2192{ 2193 if(btif_media_cb.is_rx_timer == TRUE) 2194 return; 2195 btif_media_cb.is_rx_timer = TRUE; 2196 GKI_start_timer(BTIF_MEDIA_AVK_TASK_TIMER_ID, GKI_MS_TO_TICKS(BTIF_SINK_MEDIA_TIME_TICK), TRUE); 2197} 2198 2199#if (BTA_AV_SINK_INCLUDED == TRUE) 2200 2201static void btif_media_task_aa_handle_clear_track (void) 2202{ 2203 APPL_TRACE_DEBUG("btif_media_task_aa_handle_clear_track"); 2204} 2205 2206/******************************************************************************* 2207 ** 2208 ** Function btif_media_task_aa_handle_decoder_reset 2209 ** 2210 ** Description 2211 ** 2212 ** Returns void 2213 ** 2214 *******************************************************************************/ 2215static void btif_media_task_aa_handle_decoder_reset(BT_HDR *p_msg) 2216{ 2217 tBTIF_MEDIA_SINK_CFG_UPDATE *p_buf = (tBTIF_MEDIA_SINK_CFG_UPDATE*) p_msg; 2218 tA2D_STATUS a2d_status; 2219 tA2D_SBC_CIE sbc_cie; 2220 OI_STATUS status; 2221 UINT32 freq_multiple = 48*20; /* frequency multiple for 20ms of data , initialize with 48K*/ 2222 UINT32 num_blocks = 16; 2223 UINT32 num_subbands = 8; 2224 2225 APPL_TRACE_DEBUG("btif_media_task_aa_handle_decoder_reset p_codec_info[%x:%x:%x:%x:%x:%x]", 2226 p_buf->codec_info[1], p_buf->codec_info[2], p_buf->codec_info[3], 2227 p_buf->codec_info[4], p_buf->codec_info[5], p_buf->codec_info[6]); 2228 2229 a2d_status = A2D_ParsSbcInfo(&sbc_cie, p_buf->codec_info, FALSE); 2230 if (a2d_status != A2D_SUCCESS) 2231 { 2232 APPL_TRACE_ERROR("ERROR dump_codec_info A2D_ParsSbcInfo fail:%d", a2d_status); 2233 return; 2234 } 2235 2236 btif_media_cb.sample_rate = btif_a2dp_get_track_frequency(sbc_cie.samp_freq); 2237 btif_media_cb.channel_count = btif_a2dp_get_track_channel_count(sbc_cie.ch_mode); 2238 2239 btif_media_cb.rx_flush = FALSE; 2240 APPL_TRACE_DEBUG("Reset to sink role"); 2241 status = OI_CODEC_SBC_DecoderReset(&context, contextData, sizeof(contextData), 2, 2, FALSE); 2242 if (!OI_SUCCESS(status)) { 2243 APPL_TRACE_ERROR("OI_CODEC_SBC_DecoderReset failed with error code %d\n", status); 2244 } 2245 2246 UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb); 2247 2248 switch(sbc_cie.samp_freq) 2249 { 2250 case A2D_SBC_IE_SAMP_FREQ_16: 2251 APPL_TRACE_DEBUG("\tsamp_freq:%d (16000)", sbc_cie.samp_freq); 2252 freq_multiple = 16*20; 2253 break; 2254 case A2D_SBC_IE_SAMP_FREQ_32: 2255 APPL_TRACE_DEBUG("\tsamp_freq:%d (32000)", sbc_cie.samp_freq); 2256 freq_multiple = 32*20; 2257 break; 2258 case A2D_SBC_IE_SAMP_FREQ_44: 2259 APPL_TRACE_DEBUG("\tsamp_freq:%d (44100)", sbc_cie.samp_freq); 2260 freq_multiple = 441*2; 2261 break; 2262 case A2D_SBC_IE_SAMP_FREQ_48: 2263 APPL_TRACE_DEBUG("\tsamp_freq:%d (48000)", sbc_cie.samp_freq); 2264 freq_multiple = 48*20; 2265 break; 2266 default: 2267 APPL_TRACE_DEBUG(" Unknown Frequency "); 2268 break; 2269 } 2270 2271 switch(sbc_cie.ch_mode) 2272 { 2273 case A2D_SBC_IE_CH_MD_MONO: 2274 APPL_TRACE_DEBUG("\tch_mode:%d (Mono)", sbc_cie.ch_mode); 2275 break; 2276 case A2D_SBC_IE_CH_MD_DUAL: 2277 APPL_TRACE_DEBUG("\tch_mode:%d (DUAL)", sbc_cie.ch_mode); 2278 break; 2279 case A2D_SBC_IE_CH_MD_STEREO: 2280 APPL_TRACE_DEBUG("\tch_mode:%d (STEREO)", sbc_cie.ch_mode); 2281 break; 2282 case A2D_SBC_IE_CH_MD_JOINT: 2283 APPL_TRACE_DEBUG("\tch_mode:%d (JOINT)", sbc_cie.ch_mode); 2284 break; 2285 default: 2286 APPL_TRACE_DEBUG(" Unknown Mode "); 2287 break; 2288 } 2289 2290 switch(sbc_cie.block_len) 2291 { 2292 case A2D_SBC_IE_BLOCKS_4: 2293 APPL_TRACE_DEBUG("\tblock_len:%d (4)", sbc_cie.block_len); 2294 num_blocks = 4; 2295 break; 2296 case A2D_SBC_IE_BLOCKS_8: 2297 APPL_TRACE_DEBUG("\tblock_len:%d (8)", sbc_cie.block_len); 2298 num_blocks = 8; 2299 break; 2300 case A2D_SBC_IE_BLOCKS_12: 2301 APPL_TRACE_DEBUG("\tblock_len:%d (12)", sbc_cie.block_len); 2302 num_blocks = 12; 2303 break; 2304 case A2D_SBC_IE_BLOCKS_16: 2305 APPL_TRACE_DEBUG("\tblock_len:%d (16)", sbc_cie.block_len); 2306 num_blocks = 16; 2307 break; 2308 default: 2309 APPL_TRACE_DEBUG(" Unknown BlockLen "); 2310 break; 2311 } 2312 2313 switch(sbc_cie.num_subbands) 2314 { 2315 case A2D_SBC_IE_SUBBAND_4: 2316 APPL_TRACE_DEBUG("\tnum_subbands:%d (4)", sbc_cie.num_subbands); 2317 num_subbands = 4; 2318 break; 2319 case A2D_SBC_IE_SUBBAND_8: 2320 APPL_TRACE_DEBUG("\tnum_subbands:%d (8)", sbc_cie.num_subbands); 2321 num_subbands = 8; 2322 break; 2323 default: 2324 APPL_TRACE_DEBUG(" Unknown SubBands "); 2325 break; 2326 } 2327 2328 switch(sbc_cie.alloc_mthd) 2329 { 2330 case A2D_SBC_IE_ALLOC_MD_S: 2331 APPL_TRACE_DEBUG("\talloc_mthd:%d (SNR)", sbc_cie.alloc_mthd); 2332 break; 2333 case A2D_SBC_IE_ALLOC_MD_L: 2334 APPL_TRACE_DEBUG("\talloc_mthd:%d (Loudness)", sbc_cie.alloc_mthd); 2335 break; 2336 default: 2337 APPL_TRACE_DEBUG(" Unknown Allocation Method"); 2338 break; 2339 } 2340 2341 APPL_TRACE_DEBUG("\tBit pool Min:%d Max:%d", sbc_cie.min_bitpool, sbc_cie.max_bitpool); 2342 2343 btif_media_cb.frames_to_process = ((freq_multiple)/(num_blocks*num_subbands)) + 1; 2344 APPL_TRACE_DEBUG(" Frames to be processed in 20 ms %d",btif_media_cb.frames_to_process); 2345} 2346#endif 2347 2348/******************************************************************************* 2349 ** 2350 ** Function btif_media_task_feeding_state_reset 2351 ** 2352 ** Description Reset the media feeding state 2353 ** 2354 ** Returns void 2355 ** 2356 *******************************************************************************/ 2357static void btif_media_task_feeding_state_reset(void) 2358{ 2359 APPL_TRACE_WARNING("overflow %d, enter %d, exit %d", 2360 btif_media_cb.media_feeding_state.pcm.overflow_count, 2361 btif_media_cb.media_feeding_state.pcm.max_counter_enter, 2362 btif_media_cb.media_feeding_state.pcm.max_counter_exit); 2363 2364 /* By default, just clear the entire state */ 2365 memset(&btif_media_cb.media_feeding_state, 0, sizeof(btif_media_cb.media_feeding_state)); 2366 2367 if (btif_media_cb.TxTranscoding == BTIF_MEDIA_TRSCD_PCM_2_SBC) 2368 { 2369 btif_media_cb.media_feeding_state.pcm.bytes_per_tick = 2370 (btif_media_cb.media_feeding.cfg.pcm.sampling_freq * 2371 btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8 * 2372 btif_media_cb.media_feeding.cfg.pcm.num_channel * 2373 BTIF_MEDIA_TIME_TICK)/1000; 2374 2375 APPL_TRACE_WARNING("pcm bytes per tick %d", 2376 (int)btif_media_cb.media_feeding_state.pcm.bytes_per_tick); 2377 } 2378} 2379/******************************************************************************* 2380 ** 2381 ** Function btif_media_task_aa_start_tx 2382 ** 2383 ** Description Start media task encoding 2384 ** 2385 ** Returns void 2386 ** 2387 *******************************************************************************/ 2388static void btif_media_task_aa_start_tx(void) 2389{ 2390 APPL_TRACE_DEBUG("btif_media_task_aa_start_tx is timer %d, feeding mode %d", 2391 btif_media_cb.is_tx_timer, btif_media_cb.feeding_mode); 2392 2393 /* Use a timer to poll the UIPC, get rid of the UIPC call back */ 2394 // UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_REG_CBACK, NULL); 2395 2396 btif_media_cb.is_tx_timer = TRUE; 2397 last_frame_us = 0; 2398 2399 /* Reset the media feeding state */ 2400 btif_media_task_feeding_state_reset(); 2401 2402 APPL_TRACE_EVENT("starting timer %d ticks (%d)", 2403 GKI_MS_TO_TICKS(BTIF_MEDIA_TIME_TICK), TICKS_PER_SEC); 2404 2405 GKI_start_timer(BTIF_MEDIA_AA_TASK_TIMER_ID, GKI_MS_TO_TICKS(BTIF_MEDIA_TIME_TICK), TRUE); 2406} 2407 2408/******************************************************************************* 2409 ** 2410 ** Function btif_media_task_aa_stop_tx 2411 ** 2412 ** Description Stop media task encoding 2413 ** 2414 ** Returns void 2415 ** 2416 *******************************************************************************/ 2417static void btif_media_task_aa_stop_tx(void) 2418{ 2419 APPL_TRACE_DEBUG("btif_media_task_aa_stop_tx is timer: %d", btif_media_cb.is_tx_timer); 2420 2421 /* Stop the timer first */ 2422 GKI_stop_timer(BTIF_MEDIA_AA_TASK_TIMER_ID); 2423 btif_media_cb.is_tx_timer = FALSE; 2424 2425 UIPC_Close(UIPC_CH_ID_AV_AUDIO); 2426 2427 /* audio engine stopped, reset tx suspended flag */ 2428 btif_media_cb.tx_flush = 0; 2429 last_frame_us = 0; 2430 2431 /* Reset the media feeding state */ 2432 btif_media_task_feeding_state_reset(); 2433} 2434 2435/******************************************************************************* 2436 ** 2437 ** Function btif_get_num_aa_frame 2438 ** 2439 ** Description 2440 ** 2441 ** Returns The number of media frames in this time slice 2442 ** 2443 *******************************************************************************/ 2444static UINT8 btif_get_num_aa_frame(void) 2445{ 2446 UINT32 result=0; 2447 2448 switch (btif_media_cb.TxTranscoding) 2449 { 2450 case BTIF_MEDIA_TRSCD_PCM_2_SBC: 2451 { 2452 UINT32 pcm_bytes_per_frame = btif_media_cb.encoder.s16NumOfSubBands * 2453 btif_media_cb.encoder.s16NumOfBlocks * 2454 btif_media_cb.media_feeding.cfg.pcm.num_channel * 2455 btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8; 2456 2457 UINT32 us_this_tick = BTIF_MEDIA_TIME_TICK * 1000; 2458 UINT64 now_us = time_now_us(); 2459 if (last_frame_us != 0) 2460 us_this_tick = (now_us - last_frame_us); 2461 last_frame_us = now_us; 2462 2463 btif_media_cb.media_feeding_state.pcm.counter += 2464 btif_media_cb.media_feeding_state.pcm.bytes_per_tick * 2465 us_this_tick / (BTIF_MEDIA_TIME_TICK * 1000); 2466 if ((!btif_media_cb.media_feeding_state.pcm.overflow) || 2467 (btif_media_cb.TxAaQ.count < A2DP_PACKET_COUNT_LOW_WATERMARK)) { 2468 if (btif_media_cb.media_feeding_state.pcm.overflow) { 2469 btif_media_cb.media_feeding_state.pcm.overflow = FALSE; 2470 2471 if (btif_media_cb.media_feeding_state.pcm.counter > 2472 btif_media_cb.media_feeding_state.pcm.max_counter_exit) { 2473 btif_media_cb.media_feeding_state.pcm.max_counter_exit = 2474 btif_media_cb.media_feeding_state.pcm.counter; 2475 } 2476 } 2477 /* calculate nbr of frames pending for this media tick */ 2478 result = btif_media_cb.media_feeding_state.pcm.counter/pcm_bytes_per_frame; 2479 if (result > MAX_PCM_FRAME_NUM_PER_TICK) 2480 { 2481 APPL_TRACE_ERROR("%s() - Limiting frames to be sent from %d to %d" 2482 , __FUNCTION__, result, MAX_PCM_FRAME_NUM_PER_TICK); 2483 result = MAX_PCM_FRAME_NUM_PER_TICK; 2484 } 2485 btif_media_cb.media_feeding_state.pcm.counter -= result*pcm_bytes_per_frame; 2486 } else { 2487 result = 0; 2488 } 2489 2490 VERBOSE("WRITE %d FRAMES", result); 2491 } 2492 break; 2493 2494 default: 2495 APPL_TRACE_ERROR("ERROR btif_get_num_aa_frame Unsupported transcoding format 0x%x", 2496 btif_media_cb.TxTranscoding); 2497 result = 0; 2498 break; 2499 } 2500 2501#if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) 2502 APPL_TRACE_DEBUG("btif_get_num_aa_frame returns %d", result); 2503#endif 2504 2505 return (UINT8)result; 2506} 2507 2508/******************************************************************************* 2509 ** 2510 ** Function btif_media_sink_enque_buf 2511 ** 2512 ** Description This function is called by the av_co to fill A2DP Sink Queue 2513 ** 2514 ** 2515 ** Returns size of the queue 2516 *******************************************************************************/ 2517UINT8 btif_media_sink_enque_buf(BT_HDR *p_pkt) 2518{ 2519 tBT_SBC_HDR *p_msg; 2520 2521 if(btif_media_cb.rx_flush == TRUE) /* Flush enabled, do not enque*/ 2522 return btif_media_cb.RxSbcQ.count; 2523 if(btif_media_cb.RxSbcQ.count == MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ) 2524 { 2525 GKI_freebuf(GKI_dequeue(&(btif_media_cb.RxSbcQ))); 2526 } 2527 2528 BTIF_TRACE_VERBOSE("btif_media_sink_enque_buf + "); 2529 /* allocate and Queue this buffer */ 2530 if ((p_msg = (tBT_SBC_HDR *) GKI_getbuf(sizeof(tBT_SBC_HDR) + 2531 p_pkt->offset+ p_pkt->len)) != NULL) 2532 { 2533 memcpy(p_msg, p_pkt, (sizeof(BT_HDR) + p_pkt->offset + p_pkt->len)); 2534 p_msg->num_frames_to_be_processed = (*((UINT8*)(p_msg + 1) + p_msg->offset)) & 0x0f; 2535 BTIF_TRACE_VERBOSE("btif_media_sink_enque_buf + ", p_msg->num_frames_to_be_processed); 2536 GKI_enqueue(&(btif_media_cb.RxSbcQ), p_msg); 2537 if(btif_media_cb.RxSbcQ.count == MAX_A2DP_DELAYED_START_FRAME_COUNT) 2538 { 2539 BTIF_TRACE_DEBUG(" Initiate Decoding "); 2540 btif_media_task_start_decoding_req(); 2541 } 2542 } 2543 else 2544 { 2545 /* let caller deal with a failed allocation */ 2546 BTIF_TRACE_VERBOSE("btif_media_sink_enque_buf No Buffer left - "); 2547 } 2548 return btif_media_cb.RxSbcQ.count; 2549} 2550 2551/******************************************************************************* 2552 ** 2553 ** Function btif_media_aa_readbuf 2554 ** 2555 ** Description This function is called by the av_co to get the next buffer to send 2556 ** 2557 ** 2558 ** Returns void 2559 *******************************************************************************/ 2560BT_HDR *btif_media_aa_readbuf(void) 2561{ 2562 return GKI_dequeue(&(btif_media_cb.TxAaQ)); 2563} 2564 2565/******************************************************************************* 2566 ** 2567 ** Function btif_media_aa_read_feeding 2568 ** 2569 ** Description 2570 ** 2571 ** Returns void 2572 ** 2573 *******************************************************************************/ 2574 2575BOOLEAN btif_media_aa_read_feeding(tUIPC_CH_ID channel_id) 2576{ 2577 UINT16 event; 2578 UINT16 blocm_x_subband = btif_media_cb.encoder.s16NumOfSubBands * \ 2579 btif_media_cb.encoder.s16NumOfBlocks; 2580 UINT32 read_size; 2581 UINT16 sbc_sampling = 48000; 2582 UINT32 src_samples; 2583 UINT16 bytes_needed = blocm_x_subband * btif_media_cb.encoder.s16NumOfChannels * \ 2584 btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8; 2585 static UINT16 up_sampled_buffer[SBC_MAX_NUM_FRAME * SBC_MAX_NUM_OF_BLOCKS 2586 * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS * 2]; 2587 static UINT16 read_buffer[SBC_MAX_NUM_FRAME * SBC_MAX_NUM_OF_BLOCKS 2588 * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS]; 2589 UINT32 src_size_used; 2590 UINT32 dst_size_used; 2591 BOOLEAN fract_needed; 2592 INT32 fract_max; 2593 INT32 fract_threshold; 2594 UINT32 nb_byte_read; 2595 2596 /* Get the SBC sampling rate */ 2597 switch (btif_media_cb.encoder.s16SamplingFreq) 2598 { 2599 case SBC_sf48000: 2600 sbc_sampling = 48000; 2601 break; 2602 case SBC_sf44100: 2603 sbc_sampling = 44100; 2604 break; 2605 case SBC_sf32000: 2606 sbc_sampling = 32000; 2607 break; 2608 case SBC_sf16000: 2609 sbc_sampling = 16000; 2610 break; 2611 } 2612 2613 if (sbc_sampling == btif_media_cb.media_feeding.cfg.pcm.sampling_freq) { 2614 read_size = bytes_needed - btif_media_cb.media_feeding_state.pcm.aa_feed_residue; 2615 nb_byte_read = UIPC_Read(channel_id, &event, 2616 ((UINT8 *)btif_media_cb.encoder.as16PcmBuffer) + 2617 btif_media_cb.media_feeding_state.pcm.aa_feed_residue, 2618 read_size); 2619 if (nb_byte_read == read_size) { 2620 btif_media_cb.media_feeding_state.pcm.aa_feed_residue = 0; 2621 return TRUE; 2622 } else { 2623 APPL_TRACE_WARNING("### UNDERFLOW :: ONLY READ %d BYTES OUT OF %d ###", 2624 nb_byte_read, read_size); 2625 btif_media_cb.media_feeding_state.pcm.aa_feed_residue += nb_byte_read; 2626 return FALSE; 2627 } 2628 } 2629 2630 /* Some Feeding PCM frequencies require to split the number of sample */ 2631 /* to read. */ 2632 /* E.g 128/6=21.3333 => read 22 and 21 and 21 => max = 2; threshold = 0*/ 2633 fract_needed = FALSE; /* Default */ 2634 switch (btif_media_cb.media_feeding.cfg.pcm.sampling_freq) 2635 { 2636 case 32000: 2637 case 8000: 2638 fract_needed = TRUE; 2639 fract_max = 2; /* 0, 1 and 2 */ 2640 fract_threshold = 0; /* Add one for the first */ 2641 break; 2642 case 16000: 2643 fract_needed = TRUE; 2644 fract_max = 2; /* 0, 1 and 2 */ 2645 fract_threshold = 1; /* Add one for the first two frames*/ 2646 break; 2647 } 2648 2649 /* Compute number of sample to read from source */ 2650 src_samples = blocm_x_subband; 2651 src_samples *= btif_media_cb.media_feeding.cfg.pcm.sampling_freq; 2652 src_samples /= sbc_sampling; 2653 2654 /* The previous division may have a remainder not null */ 2655 if (fract_needed) 2656 { 2657 if (btif_media_cb.media_feeding_state.pcm.aa_feed_counter <= fract_threshold) 2658 { 2659 src_samples++; /* for every read before threshold add one sample */ 2660 } 2661 2662 /* do nothing if counter >= threshold */ 2663 btif_media_cb.media_feeding_state.pcm.aa_feed_counter++; /* one more read */ 2664 if (btif_media_cb.media_feeding_state.pcm.aa_feed_counter > fract_max) 2665 { 2666 btif_media_cb.media_feeding_state.pcm.aa_feed_counter = 0; 2667 } 2668 } 2669 2670 /* Compute number of bytes to read from source */ 2671 read_size = src_samples; 2672 read_size *= btif_media_cb.media_feeding.cfg.pcm.num_channel; 2673 read_size *= (btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8); 2674 2675 /* Read Data from UIPC channel */ 2676 nb_byte_read = UIPC_Read(channel_id, &event, (UINT8 *)read_buffer, read_size); 2677 2678 //tput_mon(TRUE, nb_byte_read, FALSE); 2679 2680 if (nb_byte_read < read_size) 2681 { 2682 APPL_TRACE_WARNING("### UNDERRUN :: ONLY READ %d BYTES OUT OF %d ###", 2683 nb_byte_read, read_size); 2684 2685 if (nb_byte_read == 0) 2686 return FALSE; 2687 2688 if(btif_media_cb.feeding_mode == BTIF_AV_FEEDING_ASYNCHRONOUS) 2689 { 2690 /* Fill the unfilled part of the read buffer with silence (0) */ 2691 memset(((UINT8 *)read_buffer) + nb_byte_read, 0, read_size - nb_byte_read); 2692 nb_byte_read = read_size; 2693 } 2694 } 2695 2696 /* Initialize PCM up-sampling engine */ 2697 bta_av_sbc_init_up_sample(btif_media_cb.media_feeding.cfg.pcm.sampling_freq, 2698 sbc_sampling, btif_media_cb.media_feeding.cfg.pcm.bit_per_sample, 2699 btif_media_cb.media_feeding.cfg.pcm.num_channel); 2700 2701 /* re-sample read buffer */ 2702 /* The output PCM buffer will be stereo, 16 bit per sample */ 2703 dst_size_used = bta_av_sbc_up_sample((UINT8 *)read_buffer, 2704 (UINT8 *)up_sampled_buffer + btif_media_cb.media_feeding_state.pcm.aa_feed_residue, 2705 nb_byte_read, 2706 sizeof(up_sampled_buffer) - btif_media_cb.media_feeding_state.pcm.aa_feed_residue, 2707 &src_size_used); 2708 2709#if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) 2710 APPL_TRACE_DEBUG("btif_media_aa_read_feeding readsz:%d src_size_used:%d dst_size_used:%d", 2711 read_size, src_size_used, dst_size_used); 2712#endif 2713 2714 /* update the residue */ 2715 btif_media_cb.media_feeding_state.pcm.aa_feed_residue += dst_size_used; 2716 2717 /* only copy the pcm sample when we have up-sampled enough PCM */ 2718 if(btif_media_cb.media_feeding_state.pcm.aa_feed_residue >= bytes_needed) 2719 { 2720 /* Copy the output pcm samples in SBC encoding buffer */ 2721 memcpy((UINT8 *)btif_media_cb.encoder.as16PcmBuffer, 2722 (UINT8 *)up_sampled_buffer, 2723 bytes_needed); 2724 /* update the residue */ 2725 btif_media_cb.media_feeding_state.pcm.aa_feed_residue -= bytes_needed; 2726 2727 if (btif_media_cb.media_feeding_state.pcm.aa_feed_residue != 0) 2728 { 2729 memcpy((UINT8 *)up_sampled_buffer, 2730 (UINT8 *)up_sampled_buffer + bytes_needed, 2731 btif_media_cb.media_feeding_state.pcm.aa_feed_residue); 2732 } 2733 return TRUE; 2734 } 2735 2736#if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) 2737 APPL_TRACE_DEBUG("btif_media_aa_read_feeding residue:%d, dst_size_used %d, bytes_needed %d", 2738 btif_media_cb.media_feeding_state.pcm.aa_feed_residue, dst_size_used, bytes_needed); 2739#endif 2740 2741 return FALSE; 2742} 2743 2744/******************************************************************************* 2745 ** 2746 ** Function btif_media_aa_prep_sbc_2_send 2747 ** 2748 ** Description 2749 ** 2750 ** Returns void 2751 ** 2752 *******************************************************************************/ 2753static void btif_media_aa_prep_sbc_2_send(UINT8 nb_frame) 2754{ 2755 BT_HDR * p_buf; 2756 UINT16 blocm_x_subband = btif_media_cb.encoder.s16NumOfSubBands * 2757 btif_media_cb.encoder.s16NumOfBlocks; 2758 2759#if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) 2760 APPL_TRACE_DEBUG("btif_media_aa_prep_sbc_2_send nb_frame %d, TxAaQ %d", 2761 nb_frame, btif_media_cb.TxAaQ.count); 2762#endif 2763 while (nb_frame) 2764 { 2765 if (NULL == (p_buf = GKI_getpoolbuf(BTIF_MEDIA_AA_POOL_ID))) 2766 { 2767 APPL_TRACE_ERROR ("ERROR btif_media_aa_prep_sbc_2_send no buffer TxCnt %d ", 2768 btif_media_cb.TxAaQ.count); 2769 return; 2770 } 2771 2772 /* Init buffer */ 2773 p_buf->offset = BTIF_MEDIA_AA_SBC_OFFSET; 2774 p_buf->len = 0; 2775 p_buf->layer_specific = 0; 2776 2777 do 2778 { 2779 /* Write @ of allocated buffer in encoder.pu8Packet */ 2780 btif_media_cb.encoder.pu8Packet = (UINT8 *) (p_buf + 1) + p_buf->offset + p_buf->len; 2781 /* Fill allocated buffer with 0 */ 2782 memset(btif_media_cb.encoder.as16PcmBuffer, 0, blocm_x_subband 2783 * btif_media_cb.encoder.s16NumOfChannels); 2784 2785 /* Read PCM data and upsample them if needed */ 2786 if (btif_media_aa_read_feeding(UIPC_CH_ID_AV_AUDIO)) 2787 { 2788 /* SBC encode and descramble frame */ 2789 SBC_Encoder(&(btif_media_cb.encoder)); 2790 A2D_SbcChkFrInit(btif_media_cb.encoder.pu8Packet); 2791 A2D_SbcDescramble(btif_media_cb.encoder.pu8Packet, btif_media_cb.encoder.u16PacketLength); 2792 /* Update SBC frame length */ 2793 p_buf->len += btif_media_cb.encoder.u16PacketLength; 2794 nb_frame--; 2795 p_buf->layer_specific++; 2796 } 2797 else 2798 { 2799 APPL_TRACE_WARNING("btif_media_aa_prep_sbc_2_send underflow %d, %d", 2800 nb_frame, btif_media_cb.media_feeding_state.pcm.aa_feed_residue); 2801 btif_media_cb.media_feeding_state.pcm.counter += nb_frame * 2802 btif_media_cb.encoder.s16NumOfSubBands * 2803 btif_media_cb.encoder.s16NumOfBlocks * 2804 btif_media_cb.media_feeding.cfg.pcm.num_channel * 2805 btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8; 2806 /* no more pcm to read */ 2807 nb_frame = 0; 2808 2809 /* break read loop if timer was stopped (media task stopped) */ 2810 if ( btif_media_cb.is_tx_timer == FALSE ) 2811 { 2812 GKI_freebuf(p_buf); 2813 return; 2814 } 2815 } 2816 2817 } while (((p_buf->len + btif_media_cb.encoder.u16PacketLength) < btif_media_cb.TxAaMtuSize) 2818 && (p_buf->layer_specific < 0x0F) && nb_frame); 2819 2820 if(p_buf->len) 2821 { 2822 /* timestamp of the media packet header represent the TS of the first SBC frame 2823 i.e the timestamp before including this frame */ 2824 *((UINT32 *) (p_buf + 1)) = btif_media_cb.timestamp; 2825 2826 btif_media_cb.timestamp += p_buf->layer_specific * blocm_x_subband; 2827 2828 VERBOSE("TX QUEUE NOW %d", btif_media_cb.TxAaQ.count); 2829 2830 if (btif_media_cb.tx_flush) 2831 { 2832 APPL_TRACE_DEBUG("### tx suspended, discarded frame ###"); 2833 2834 if (btif_media_cb.TxAaQ.count > 0) 2835 btif_media_flush_q(&(btif_media_cb.TxAaQ)); 2836 2837 GKI_freebuf(p_buf); 2838 return; 2839 } 2840 2841 /* Enqueue the encoded SBC frame in AA Tx Queue */ 2842 GKI_enqueue(&(btif_media_cb.TxAaQ), p_buf); 2843 } 2844 else 2845 { 2846 GKI_freebuf(p_buf); 2847 } 2848 2849 if (btif_media_cb.TxAaQ.count >= MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ) { 2850 UINT32 reset_rate_bytes = btif_media_cb.media_feeding_state.pcm.bytes_per_tick * 2851 (RESET_RATE_COUNTER_THRESHOLD_MS / BTIF_MEDIA_TIME_TICK); 2852 btif_media_cb.media_feeding_state.pcm.overflow = TRUE; 2853 btif_media_cb.media_feeding_state.pcm.counter += nb_frame * 2854 btif_media_cb.encoder.s16NumOfSubBands * 2855 btif_media_cb.encoder.s16NumOfBlocks * 2856 btif_media_cb.media_feeding.cfg.pcm.num_channel * 2857 btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8; 2858 2859 btif_media_cb.media_feeding_state.pcm.overflow_count++; 2860 if (btif_media_cb.media_feeding_state.pcm.counter > 2861 btif_media_cb.media_feeding_state.pcm.max_counter_enter) { 2862 btif_media_cb.media_feeding_state.pcm.max_counter_enter = 2863 btif_media_cb.media_feeding_state.pcm.counter; 2864 } 2865 2866 if (btif_media_cb.media_feeding_state.pcm.counter > reset_rate_bytes) { 2867 btif_media_cb.media_feeding_state.pcm.counter = 0; 2868 APPL_TRACE_WARNING("btif_media_aa_prep_sbc_2_send:reset rate counter"); 2869 } 2870 2871 /* no more pcm to read */ 2872 nb_frame = 0; 2873 } 2874 } 2875} 2876 2877 2878/******************************************************************************* 2879 ** 2880 ** Function btif_media_aa_prep_2_send 2881 ** 2882 ** Description 2883 ** 2884 ** Returns void 2885 ** 2886 *******************************************************************************/ 2887 2888static void btif_media_aa_prep_2_send(UINT8 nb_frame) 2889{ 2890 VERBOSE("btif_media_aa_prep_2_send : %d frames (queue %d)", nb_frame, 2891 btif_media_cb.TxAaQ.count); 2892 2893 switch (btif_media_cb.TxTranscoding) 2894 { 2895 case BTIF_MEDIA_TRSCD_PCM_2_SBC: 2896 btif_media_aa_prep_sbc_2_send(nb_frame); 2897 break; 2898 2899 2900 default: 2901 APPL_TRACE_ERROR("ERROR btif_media_aa_prep_2_send unsupported transcoding format 0x%x",btif_media_cb.TxTranscoding); 2902 break; 2903 } 2904} 2905 2906/******************************************************************************* 2907 ** 2908 ** Function btif_media_send_aa_frame 2909 ** 2910 ** Description 2911 ** 2912 ** Returns void 2913 ** 2914 *******************************************************************************/ 2915static void btif_media_send_aa_frame(void) 2916{ 2917 UINT8 nb_frame_2_send; 2918 2919 /* get the number of frame to send */ 2920 nb_frame_2_send = btif_get_num_aa_frame(); 2921 2922 if (nb_frame_2_send != 0) { 2923 /* format and Q buffer to send */ 2924 btif_media_aa_prep_2_send(nb_frame_2_send); 2925 } 2926 2927 /* send it */ 2928 VERBOSE("btif_media_send_aa_frame : send %d frames", nb_frame_2_send); 2929 bta_av_ci_src_data_ready(BTA_AV_CHNL_AUDIO); 2930} 2931 2932#endif /* BTA_AV_INCLUDED == TRUE */ 2933 2934/******************************************************************************* 2935 ** 2936 ** Function dump_codec_info 2937 ** 2938 ** Description Decode and display codec_info (for debug) 2939 ** 2940 ** Returns void 2941 ** 2942 *******************************************************************************/ 2943void dump_codec_info(unsigned char *p_codec) 2944{ 2945 tA2D_STATUS a2d_status; 2946 tA2D_SBC_CIE sbc_cie; 2947 2948 a2d_status = A2D_ParsSbcInfo(&sbc_cie, p_codec, FALSE); 2949 if (a2d_status != A2D_SUCCESS) 2950 { 2951 APPL_TRACE_ERROR("ERROR dump_codec_info A2D_ParsSbcInfo fail:%d", a2d_status); 2952 return; 2953 } 2954 2955 APPL_TRACE_DEBUG("dump_codec_info"); 2956 2957 if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_16) 2958 { APPL_TRACE_DEBUG("\tsamp_freq:%d (16000)", sbc_cie.samp_freq);} 2959 else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_32) 2960 { APPL_TRACE_DEBUG("\tsamp_freq:%d (32000)", sbc_cie.samp_freq);} 2961 else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_44) 2962 { APPL_TRACE_DEBUG("\tsamp_freq:%d (44.100)", sbc_cie.samp_freq);} 2963 else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_48) 2964 { APPL_TRACE_DEBUG("\tsamp_freq:%d (48000)", sbc_cie.samp_freq);} 2965 else 2966 { APPL_TRACE_DEBUG("\tBAD samp_freq:%d", sbc_cie.samp_freq);} 2967 2968 if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_MONO) 2969 { APPL_TRACE_DEBUG("\tch_mode:%d (Mono)", sbc_cie.ch_mode);} 2970 else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_DUAL) 2971 { APPL_TRACE_DEBUG("\tch_mode:%d (Dual)", sbc_cie.ch_mode);} 2972 else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_STEREO) 2973 { APPL_TRACE_DEBUG("\tch_mode:%d (Stereo)", sbc_cie.ch_mode);} 2974 else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_JOINT) 2975 { APPL_TRACE_DEBUG("\tch_mode:%d (Joint)", sbc_cie.ch_mode);} 2976 else 2977 { APPL_TRACE_DEBUG("\tBAD ch_mode:%d", sbc_cie.ch_mode);} 2978 2979 if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_4) 2980 { APPL_TRACE_DEBUG("\tblock_len:%d (4)", sbc_cie.block_len);} 2981 else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_8) 2982 { APPL_TRACE_DEBUG("\tblock_len:%d (8)", sbc_cie.block_len);} 2983 else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_12) 2984 { APPL_TRACE_DEBUG("\tblock_len:%d (12)", sbc_cie.block_len);} 2985 else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_16) 2986 { APPL_TRACE_DEBUG("\tblock_len:%d (16)", sbc_cie.block_len);} 2987 else 2988 { APPL_TRACE_DEBUG("\tBAD block_len:%d", sbc_cie.block_len);} 2989 2990 if (sbc_cie.num_subbands == A2D_SBC_IE_SUBBAND_4) 2991 { APPL_TRACE_DEBUG("\tnum_subbands:%d (4)", sbc_cie.num_subbands);} 2992 else if (sbc_cie.num_subbands == A2D_SBC_IE_SUBBAND_8) 2993 { APPL_TRACE_DEBUG("\tnum_subbands:%d (8)", sbc_cie.num_subbands);} 2994 else 2995 { APPL_TRACE_DEBUG("\tBAD num_subbands:%d", sbc_cie.num_subbands);} 2996 2997 if (sbc_cie.alloc_mthd == A2D_SBC_IE_ALLOC_MD_S) 2998 { APPL_TRACE_DEBUG("\talloc_mthd:%d (SNR)", sbc_cie.alloc_mthd);} 2999 else if (sbc_cie.alloc_mthd == A2D_SBC_IE_ALLOC_MD_L) 3000 { APPL_TRACE_DEBUG("\talloc_mthd:%d (Loundess)", sbc_cie.alloc_mthd);} 3001 else 3002 { APPL_TRACE_DEBUG("\tBAD alloc_mthd:%d", sbc_cie.alloc_mthd);} 3003 3004 APPL_TRACE_DEBUG("\tBit pool Min:%d Max:%d", sbc_cie.min_bitpool, sbc_cie.max_bitpool); 3005 3006} 3007 3008