The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 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> |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 38 | #include <errno.h> |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 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 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 55 | #include "btif_av_co.h" |
| 56 | #include "btif_media.h" |
| 57 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 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" |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 69 | |
| 70 | /***************************************************************************** |
| 71 | ** Constants |
| 72 | *****************************************************************************/ |
| 73 | |
| 74 | //#define DEBUG_MEDIA_AV_FLOW TRUE |
| 75 | |
| 76 | /* BTIF media task gki event definition */ |
| 77 | #define BTIF_MEDIA_TASK_CMD TASK_MBOX_0_EVT_MASK |
| 78 | #define BTIF_MEDIA_TASK_DATA TASK_MBOX_1_EVT_MASK |
| 79 | |
| 80 | #define BTIF_MEDIA_TASK_KILL EVENT_MASK(GKI_SHUTDOWN_EVT) |
| 81 | |
| 82 | #define BTIF_MEDIA_AA_TASK_TIMER_ID TIMER_0 |
| 83 | #define BTIF_MEDIA_AV_TASK_TIMER_ID TIMER_1 |
| 84 | #define BTIF_MEDIA_AA_TASK_TIMER TIMER_0_EVT_MASK |
| 85 | #define BTIF_MEDIA_AV_TASK_TIMER TIMER_1_EVT_MASK |
| 86 | |
| 87 | #define BTIF_MEDIA_TASK_CMD_MBOX TASK_MBOX_0 /* cmd mailbox */ |
| 88 | #define BTIF_MEDIA_TASK_DATA_MBOX TASK_MBOX_1 /* data mailbox */ |
| 89 | |
Zhihai Xu | 01c686c | 2013-09-15 19:59:37 -0700 | [diff] [blame] | 90 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 91 | /* BTIF media cmd event definition : BTIF_MEDIA_TASK_CMD */ |
| 92 | enum |
| 93 | { |
| 94 | BTIF_MEDIA_START_AA_TX = 1, |
| 95 | BTIF_MEDIA_STOP_AA_TX, |
| 96 | BTIF_MEDIA_AA_RX_RDY, |
| 97 | BTIF_MEDIA_UIPC_RX_RDY, |
| 98 | BTIF_MEDIA_SBC_ENC_INIT, |
| 99 | BTIF_MEDIA_SBC_ENC_UPDATE, |
| 100 | BTIF_MEDIA_SBC_DEC_INIT, |
| 101 | BTIF_MEDIA_VIDEO_DEC_INIT, |
| 102 | BTIF_MEDIA_FLUSH_AA_TX, |
| 103 | BTIF_MEDIA_FLUSH_AA_RX, |
| 104 | BTIF_MEDIA_AUDIO_FEEDING_INIT, |
| 105 | BTIF_MEDIA_AUDIO_RECEIVING_INIT |
| 106 | }; |
| 107 | |
| 108 | enum { |
| 109 | MEDIA_TASK_STATE_OFF = 0, |
| 110 | MEDIA_TASK_STATE_ON = 1, |
| 111 | MEDIA_TASK_STATE_SHUTTING_DOWN = 2 |
| 112 | }; |
| 113 | |
| 114 | /* Macro to multiply the media task tick */ |
| 115 | #ifndef BTIF_MEDIA_NUM_TICK |
| 116 | #define BTIF_MEDIA_NUM_TICK 1 |
| 117 | #endif |
| 118 | |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 119 | /* Media task tick in milliseconds, must be set to multiple of |
| 120 | (1000/TICKS_PER_SEC) (10) */ |
| 121 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 122 | #define BTIF_MEDIA_TIME_TICK (20 * BTIF_MEDIA_NUM_TICK) |
Zhihai Xu | 01c686c | 2013-09-15 19:59:37 -0700 | [diff] [blame] | 123 | #define A2DP_DATA_READ_POLL_MS (BTIF_MEDIA_TIME_TICK / 2) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 124 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 125 | /* buffer pool */ |
| 126 | #define BTIF_MEDIA_AA_POOL_ID GKI_POOL_ID_3 |
| 127 | #define BTIF_MEDIA_AA_BUF_SIZE GKI_BUF3_SIZE |
| 128 | |
| 129 | /* offset */ |
| 130 | #if (BTA_AV_CO_CP_SCMS_T == TRUE) |
| 131 | #define BTIF_MEDIA_AA_SBC_OFFSET (AVDT_MEDIA_OFFSET + BTA_AV_SBC_HDR_SIZE + 1) |
| 132 | #else |
| 133 | #define BTIF_MEDIA_AA_SBC_OFFSET (AVDT_MEDIA_OFFSET + BTA_AV_SBC_HDR_SIZE) |
| 134 | #endif |
| 135 | |
| 136 | /* Define the bitrate step when trying to match bitpool value */ |
| 137 | #ifndef BTIF_MEDIA_BITRATE_STEP |
| 138 | #define BTIF_MEDIA_BITRATE_STEP 5 |
| 139 | #endif |
| 140 | |
| 141 | /* Middle quality quality setting @ 44.1 khz */ |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 142 | #define DEFAULT_SBC_BITRATE 328 |
| 143 | |
| 144 | #ifndef BTIF_A2DP_NON_EDR_MAX_RATE |
| 145 | #define BTIF_A2DP_NON_EDR_MAX_RATE 229 |
| 146 | #endif |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 147 | |
| 148 | #ifndef A2DP_MEDIA_TASK_STACK_SIZE |
| 149 | #define A2DP_MEDIA_TASK_STACK_SIZE 0x2000 /* In bytes */ |
| 150 | #endif |
| 151 | |
| 152 | #define A2DP_MEDIA_TASK_TASK_STR ((INT8 *) "A2DP-MEDIA") |
| 153 | static UINT32 a2dp_media_task_stack[(A2DP_MEDIA_TASK_STACK_SIZE + 3) / 4]; |
| 154 | |
| 155 | #define BT_MEDIA_TASK A2DP_MEDIA_TASK |
| 156 | |
| 157 | #define USEC_PER_SEC 1000000L |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 158 | #define TPUT_STATS_INTERVAL_US (3000*1000) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 159 | |
| 160 | /* |
| 161 | * CONGESTION COMPENSATION CTRL :: |
| 162 | * |
| 163 | * Thus setting controls how many buffers we will hold in media task |
| 164 | * during temp link congestion. Together with the stack buffer queues |
| 165 | * it controls much temporary a2dp link congestion we can |
| 166 | * compensate for. It however also depends on the default run level of sinks |
| 167 | * jitterbuffers. Depending on type of sink this would vary. |
| 168 | * Ideally the (SRC) max tx buffer capacity should equal the sinks |
| 169 | * jitterbuffer runlevel including any intermediate buffers on the way |
| 170 | * towards the sinks codec. |
| 171 | */ |
| 172 | |
| 173 | /* fixme -- define this in pcm time instead of buffer count */ |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 174 | |
| 175 | /* The typical runlevel of the tx queue size is ~1 buffer |
| 176 | but due to link flow control or thread preemption in lower |
| 177 | layers we might need to temporarily buffer up data */ |
| 178 | |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 179 | /* 18 frames is equivalent to 6.89*18*2.9 ~= 360 ms @ 44.1 khz, 20 ms mediatick */ |
| 180 | #define MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ 18 |
| 181 | #define A2DP_PACKET_COUNT_LOW_WATERMARK 5 |
| 182 | #define MAX_PCM_FRAME_NUM_PER_TICK 40 |
| 183 | #define RESET_RATE_COUNTER_THRESHOLD_MS 2000 |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 184 | |
| 185 | //#define BTIF_MEDIA_VERBOSE_ENABLED |
| 186 | |
| 187 | #ifdef BTIF_MEDIA_VERBOSE_ENABLED |
| 188 | #define VERBOSE(fmt, ...) \ |
| 189 | LogMsg( TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | \ |
| 190 | TRACE_TYPE_ERROR, fmt, ## __VA_ARGS__) |
| 191 | #else |
| 192 | #define VERBOSE(fmt, ...) |
| 193 | #endif |
| 194 | |
| 195 | /***************************************************************************** |
| 196 | ** Data types |
| 197 | *****************************************************************************/ |
| 198 | |
| 199 | typedef struct |
| 200 | { |
| 201 | UINT32 aa_frame_counter; |
| 202 | INT32 aa_feed_counter; |
| 203 | INT32 aa_feed_residue; |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 204 | UINT32 counter; |
| 205 | UINT32 bytes_per_tick; /* pcm bytes read each media task tick */ |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 206 | UINT32 max_counter_exit; |
| 207 | UINT32 max_counter_enter; |
| 208 | UINT32 overflow_count; |
| 209 | BOOLEAN overflow; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 210 | } tBTIF_AV_MEDIA_FEEDINGS_PCM_STATE; |
| 211 | |
| 212 | |
| 213 | typedef union |
| 214 | { |
| 215 | tBTIF_AV_MEDIA_FEEDINGS_PCM_STATE pcm; |
| 216 | } tBTIF_AV_MEDIA_FEEDINGS_STATE; |
| 217 | |
| 218 | typedef struct |
| 219 | { |
| 220 | #if (BTA_AV_INCLUDED == TRUE) |
| 221 | BUFFER_Q TxAaQ; |
| 222 | BOOLEAN is_tx_timer; |
| 223 | UINT16 TxAaMtuSize; |
| 224 | UINT32 timestamp; |
| 225 | UINT8 TxTranscoding; |
| 226 | tBTIF_AV_FEEDING_MODE feeding_mode; |
| 227 | tBTIF_AV_MEDIA_FEEDINGS media_feeding; |
| 228 | tBTIF_AV_MEDIA_FEEDINGS_STATE media_feeding_state; |
| 229 | SBC_ENC_PARAMS encoder; |
| 230 | UINT8 busy_level; |
| 231 | void* av_sm_hdl; |
| 232 | UINT8 a2dp_cmd_pending; /* we can have max one command pending */ |
| 233 | BOOLEAN tx_flush; /* discards any outgoing data when true */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 234 | #endif |
| 235 | |
| 236 | } tBTIF_MEDIA_CB; |
| 237 | |
| 238 | typedef struct { |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 239 | long long rx; |
| 240 | long long rx_tot; |
| 241 | long long tx; |
| 242 | long long tx_tot; |
| 243 | long long ts_prev_us; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 244 | } t_stat; |
| 245 | |
| 246 | /***************************************************************************** |
| 247 | ** Local data |
| 248 | *****************************************************************************/ |
| 249 | |
| 250 | static tBTIF_MEDIA_CB btif_media_cb; |
| 251 | static int media_task_running = MEDIA_TASK_STATE_OFF; |
| 252 | |
| 253 | |
| 254 | /***************************************************************************** |
| 255 | ** Local functions |
| 256 | *****************************************************************************/ |
| 257 | |
| 258 | static void btif_a2dp_data_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event); |
| 259 | static void btif_a2dp_ctrl_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event); |
| 260 | static void btif_a2dp_encoder_update(void); |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 261 | const char* dump_media_event(UINT16 event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 262 | |
| 263 | /***************************************************************************** |
| 264 | ** Externs |
| 265 | *****************************************************************************/ |
| 266 | |
| 267 | static void btif_media_task_handle_cmd(BT_HDR *p_msg); |
| 268 | static void btif_media_task_handle_media(BT_HDR *p_msg); |
| 269 | |
| 270 | #if (BTA_AV_INCLUDED == TRUE) |
| 271 | static void btif_media_send_aa_frame(void); |
| 272 | static void btif_media_task_feeding_state_reset(void); |
| 273 | static void btif_media_task_aa_start_tx(void); |
| 274 | static void btif_media_task_aa_stop_tx(void); |
| 275 | static void btif_media_task_enc_init(BT_HDR *p_msg); |
| 276 | static void btif_media_task_enc_update(BT_HDR *p_msg); |
| 277 | static void btif_media_task_audio_feeding_init(BT_HDR *p_msg); |
| 278 | static void btif_media_task_aa_tx_flush(BT_HDR *p_msg); |
| 279 | static void btif_media_aa_prep_2_send(UINT8 nb_frame); |
| 280 | #endif |
| 281 | |
| 282 | |
| 283 | /***************************************************************************** |
| 284 | ** Misc helper functions |
| 285 | *****************************************************************************/ |
| 286 | |
| 287 | static void tput_mon(int is_rx, int len, int reset) |
| 288 | { |
| 289 | /* only monitor one connection at a time for now */ |
| 290 | static t_stat cur_stat; |
| 291 | struct timespec now; |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 292 | unsigned long long prev_us; |
| 293 | unsigned long long now_us; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 294 | |
| 295 | if (reset == TRUE) |
| 296 | { |
| 297 | memset(&cur_stat, 0, sizeof(t_stat)); |
| 298 | return; |
| 299 | } |
| 300 | |
| 301 | if (is_rx) |
| 302 | { |
| 303 | cur_stat.rx+=len; |
| 304 | cur_stat.rx_tot+=len; |
| 305 | } |
| 306 | else |
| 307 | { |
| 308 | cur_stat.tx+=len; |
| 309 | cur_stat.tx_tot+=len; |
| 310 | } |
| 311 | clock_gettime(CLOCK_MONOTONIC, &now); |
| 312 | |
| 313 | now_us = now.tv_sec*USEC_PER_SEC + now.tv_nsec/1000; |
| 314 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 315 | if ((now_us - cur_stat.ts_prev_us) < TPUT_STATS_INTERVAL_US) |
| 316 | return; |
| 317 | |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 318 | APPL_TRACE_WARNING4("tput rx:%d, tx:%d (bytes/s) (tot : rx %d, tx %d bytes)", |
| 319 | (cur_stat.rx*1000000)/((now_us - cur_stat.ts_prev_us)), |
| 320 | (cur_stat.tx*1000000)/((now_us - cur_stat.ts_prev_us)), |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 321 | cur_stat.rx_tot, cur_stat.tx_tot); |
| 322 | |
| 323 | /* stats dumped. now reset stats for next interval */ |
| 324 | cur_stat.rx = 0; |
| 325 | cur_stat.tx = 0; |
| 326 | cur_stat.ts_prev_us = now_us; |
| 327 | } |
| 328 | |
| 329 | |
| 330 | static void log_tstamps_us(char *comment) |
| 331 | { |
| 332 | #define USEC_PER_SEC 1000000L |
| 333 | static struct timespec prev = {0, 0}; |
| 334 | struct timespec now, diff; |
| 335 | unsigned int diff_us = 0; |
| 336 | unsigned int now_us = 0; |
| 337 | |
| 338 | clock_gettime(CLOCK_MONOTONIC, &now); |
| 339 | now_us = now.tv_sec*USEC_PER_SEC + now.tv_nsec/1000; |
| 340 | diff_us = (now.tv_sec - prev.tv_sec) * USEC_PER_SEC + (now.tv_nsec - prev.tv_nsec)/1000; |
| 341 | |
| 342 | APPL_TRACE_DEBUG4("[%s] ts %08d, diff : %08d, queue sz %d", comment, now_us, diff_us, |
| 343 | btif_media_cb.TxAaQ.count); |
| 344 | |
| 345 | prev = now; |
| 346 | } |
| 347 | |
| 348 | const char* dump_media_event(UINT16 event) |
| 349 | { |
| 350 | switch(event) |
| 351 | { |
| 352 | CASE_RETURN_STR(BTIF_MEDIA_START_AA_TX) |
| 353 | CASE_RETURN_STR(BTIF_MEDIA_STOP_AA_TX) |
| 354 | CASE_RETURN_STR(BTIF_MEDIA_AA_RX_RDY) |
| 355 | CASE_RETURN_STR(BTIF_MEDIA_UIPC_RX_RDY) |
| 356 | CASE_RETURN_STR(BTIF_MEDIA_SBC_ENC_INIT) |
| 357 | CASE_RETURN_STR(BTIF_MEDIA_SBC_ENC_UPDATE) |
| 358 | CASE_RETURN_STR(BTIF_MEDIA_SBC_DEC_INIT) |
| 359 | CASE_RETURN_STR(BTIF_MEDIA_VIDEO_DEC_INIT) |
| 360 | CASE_RETURN_STR(BTIF_MEDIA_FLUSH_AA_TX) |
| 361 | CASE_RETURN_STR(BTIF_MEDIA_FLUSH_AA_RX) |
| 362 | CASE_RETURN_STR(BTIF_MEDIA_AUDIO_FEEDING_INIT) |
| 363 | CASE_RETURN_STR(BTIF_MEDIA_AUDIO_RECEIVING_INIT) |
| 364 | |
| 365 | default: |
| 366 | return "UNKNOWN MEDIA EVENT"; |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | /***************************************************************************** |
| 371 | ** A2DP CTRL PATH |
| 372 | *****************************************************************************/ |
| 373 | |
| 374 | static const char* dump_a2dp_ctrl_event(UINT8 event) |
| 375 | { |
| 376 | switch(event) |
| 377 | { |
| 378 | CASE_RETURN_STR(A2DP_CTRL_CMD_NONE) |
| 379 | CASE_RETURN_STR(A2DP_CTRL_CMD_CHECK_READY) |
| 380 | CASE_RETURN_STR(A2DP_CTRL_CMD_START) |
| 381 | CASE_RETURN_STR(A2DP_CTRL_CMD_STOP) |
| 382 | CASE_RETURN_STR(A2DP_CTRL_CMD_SUSPEND) |
| 383 | default: |
| 384 | return "UNKNOWN MSG ID"; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | static void btif_audiopath_detached(void) |
| 389 | { |
| 390 | APPL_TRACE_EVENT0("## AUDIO PATH DETACHED ##"); |
| 391 | |
| 392 | /* send stop request only if we are actively streaming and haven't received |
| 393 | a stop request. Potentially audioflinger detached abnormally */ |
| 394 | if (btif_media_cb.is_tx_timer) |
| 395 | { |
| 396 | /* post stop event and wait for audio path to stop */ |
| 397 | btif_dispatch_sm_event(BTIF_AV_STOP_STREAM_REQ_EVT, NULL, 0); |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | static void a2dp_cmd_acknowledge(int status) |
| 402 | { |
| 403 | UINT8 ack = status; |
| 404 | |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 405 | APPL_TRACE_EVENT2("## a2dp ack : %s, status %d ##", |
| 406 | dump_a2dp_ctrl_event(btif_media_cb.a2dp_cmd_pending), status); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 407 | |
| 408 | /* sanity check */ |
| 409 | if (btif_media_cb.a2dp_cmd_pending == A2DP_CTRL_CMD_NONE) |
| 410 | { |
| 411 | APPL_TRACE_ERROR0("warning : no command pending, ignore ack"); |
| 412 | return; |
| 413 | } |
| 414 | |
| 415 | /* clear pending */ |
| 416 | btif_media_cb.a2dp_cmd_pending = A2DP_CTRL_CMD_NONE; |
| 417 | |
| 418 | /* acknowledge start request */ |
| 419 | UIPC_Send(UIPC_CH_ID_AV_CTRL, 0, &ack, 1); |
| 420 | } |
| 421 | |
| 422 | |
| 423 | static void btif_recv_ctrl_data(void) |
| 424 | { |
| 425 | UINT8 cmd = 0; |
| 426 | int n; |
| 427 | |
| 428 | n = UIPC_Read(UIPC_CH_ID_AV_CTRL, NULL, &cmd, 1); |
| 429 | |
| 430 | /* detach on ctrl channel means audioflinger process was terminated */ |
| 431 | if (n == 0) |
| 432 | { |
| 433 | APPL_TRACE_EVENT0("CTRL CH DETACHED"); |
| 434 | UIPC_Close(UIPC_CH_ID_AV_CTRL); |
| 435 | /* we can operate only on datachannel, if af client wants to |
| 436 | do send additional commands the ctrl channel would be reestablished */ |
| 437 | //btif_audiopath_detached(); |
| 438 | return; |
| 439 | } |
| 440 | |
| 441 | APPL_TRACE_DEBUG1("a2dp-ctrl-cmd : %s", dump_a2dp_ctrl_event(cmd)); |
| 442 | |
| 443 | btif_media_cb.a2dp_cmd_pending = cmd; |
| 444 | |
| 445 | switch(cmd) |
| 446 | { |
| 447 | case A2DP_CTRL_CMD_CHECK_READY: |
| 448 | |
| 449 | if (media_task_running == MEDIA_TASK_STATE_SHUTTING_DOWN) |
| 450 | { |
| 451 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); |
| 452 | return; |
| 453 | } |
| 454 | |
| 455 | /* check whether av is ready to setup a2dp datapath */ |
| 456 | if ((btif_av_stream_ready() == TRUE) || (btif_av_stream_started_ready() == TRUE)) |
| 457 | { |
| 458 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); |
| 459 | } |
| 460 | else |
| 461 | { |
| 462 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); |
| 463 | } |
| 464 | break; |
| 465 | |
| 466 | case A2DP_CTRL_CMD_START: |
| 467 | |
| 468 | if (btif_av_stream_ready() == TRUE) |
| 469 | { |
| 470 | /* setup audio data channel listener */ |
| 471 | UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb); |
| 472 | |
| 473 | /* post start event and wait for audio path to open */ |
| 474 | btif_dispatch_sm_event(BTIF_AV_START_STREAM_REQ_EVT, NULL, 0); |
| 475 | } |
| 476 | else if (btif_av_stream_started_ready()) |
| 477 | { |
| 478 | /* already started, setup audio data channel listener |
| 479 | and ack back immediately */ |
| 480 | UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb); |
| 481 | |
| 482 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); |
| 483 | } |
| 484 | else |
| 485 | { |
| 486 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); |
| 487 | break; |
| 488 | } |
| 489 | break; |
| 490 | |
| 491 | case A2DP_CTRL_CMD_STOP: |
| 492 | |
| 493 | if (btif_media_cb.is_tx_timer == FALSE) |
| 494 | { |
| 495 | /* we are already stopped, just ack back */ |
| 496 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); |
| 497 | break; |
| 498 | } |
| 499 | |
| 500 | btif_dispatch_sm_event(BTIF_AV_STOP_STREAM_REQ_EVT, NULL, 0); |
| 501 | break; |
| 502 | |
| 503 | case A2DP_CTRL_CMD_SUSPEND: |
| 504 | /* local suspend */ |
| 505 | if (btif_av_stream_started_ready()) |
| 506 | { |
| 507 | btif_dispatch_sm_event(BTIF_AV_SUSPEND_STREAM_REQ_EVT, NULL, 0); |
| 508 | } |
| 509 | else |
| 510 | { |
| 511 | /* if we are not in started state, just ack back ok and let |
| 512 | audioflinger close the channel. This can happen if we are |
| 513 | remotely suspended */ |
| 514 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); |
| 515 | } |
| 516 | break; |
| 517 | |
| 518 | default: |
| 519 | APPL_TRACE_ERROR1("UNSUPPORTED CMD (%d)", cmd); |
| 520 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); |
| 521 | break; |
| 522 | } |
| 523 | APPL_TRACE_DEBUG1("a2dp-ctrl-cmd : %s DONE", dump_a2dp_ctrl_event(cmd)); |
| 524 | } |
| 525 | |
| 526 | static void btif_a2dp_ctrl_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event) |
| 527 | { |
Mike J. Chen | 5cd8bff | 2014-01-31 18:16:59 -0800 | [diff] [blame] | 528 | UNUSED(ch_id); |
| 529 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 530 | APPL_TRACE_DEBUG1("A2DP-CTRL-CHANNEL EVENT %s", dump_uipc_event(event)); |
| 531 | |
| 532 | switch(event) |
| 533 | { |
| 534 | case UIPC_OPEN_EVT: |
| 535 | /* fetch av statemachine handle */ |
| 536 | btif_media_cb.av_sm_hdl = btif_av_get_sm_handle(); |
| 537 | break; |
| 538 | |
| 539 | case UIPC_CLOSE_EVT: |
| 540 | /* restart ctrl server unless we are shutting down */ |
| 541 | if (media_task_running == MEDIA_TASK_STATE_ON) |
| 542 | UIPC_Open(UIPC_CH_ID_AV_CTRL , btif_a2dp_ctrl_cb); |
| 543 | break; |
| 544 | |
| 545 | case UIPC_RX_DATA_READY_EVT: |
| 546 | btif_recv_ctrl_data(); |
| 547 | break; |
| 548 | |
| 549 | default : |
| 550 | APPL_TRACE_ERROR1("### A2DP-CTRL-CHANNEL EVENT %d NOT HANDLED ###", event); |
| 551 | break; |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | static void btif_a2dp_data_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event) |
| 556 | { |
Mike J. Chen | 5cd8bff | 2014-01-31 18:16:59 -0800 | [diff] [blame] | 557 | UNUSED(ch_id); |
| 558 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 559 | APPL_TRACE_DEBUG1("BTIF MEDIA (A2DP-DATA) EVENT %s", dump_uipc_event(event)); |
| 560 | |
| 561 | switch(event) |
| 562 | { |
| 563 | case UIPC_OPEN_EVT: |
| 564 | |
| 565 | /* read directly from media task from here on (keep callback for |
| 566 | connection events */ |
| 567 | UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_REG_REMOVE_ACTIVE_READSET, NULL); |
Zhihai Xu | 01c686c | 2013-09-15 19:59:37 -0700 | [diff] [blame] | 568 | UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_SET_READ_POLL_TMO, |
| 569 | (void *)A2DP_DATA_READ_POLL_MS); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 570 | /* Start the media task to encode SBC */ |
| 571 | btif_media_task_start_aa_req(); |
| 572 | |
| 573 | /* make sure we update any changed sbc encoder params */ |
| 574 | btif_a2dp_encoder_update(); |
| 575 | |
| 576 | /* ack back when media task is fully started */ |
| 577 | break; |
| 578 | |
| 579 | case UIPC_CLOSE_EVT: |
| 580 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); |
| 581 | btif_audiopath_detached(); |
| 582 | break; |
| 583 | |
| 584 | default : |
| 585 | APPL_TRACE_ERROR1("### A2DP-DATA EVENT %d NOT HANDLED ###", event); |
| 586 | break; |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | |
| 591 | /***************************************************************************** |
| 592 | ** BTIF ADAPTATION |
| 593 | *****************************************************************************/ |
| 594 | |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 595 | static UINT16 btif_media_task_get_sbc_rate(void) |
| 596 | { |
| 597 | UINT16 rate = DEFAULT_SBC_BITRATE; |
| 598 | |
| 599 | /* restrict bitrate if a2dp link is non-edr */ |
| 600 | if (!btif_av_is_peer_edr()) |
| 601 | { |
| 602 | rate = BTIF_A2DP_NON_EDR_MAX_RATE; |
| 603 | APPL_TRACE_DEBUG1("non-edr a2dp sink detected, restrict rate to %d", rate); |
| 604 | } |
| 605 | |
| 606 | return rate; |
| 607 | } |
| 608 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 609 | static void btif_a2dp_encoder_init(void) |
| 610 | { |
| 611 | UINT16 minmtu; |
| 612 | tBTIF_MEDIA_INIT_AUDIO msg; |
| 613 | tA2D_SBC_CIE sbc_config; |
| 614 | |
| 615 | /* lookup table for converting channel mode */ |
| 616 | UINT16 codec_mode_tbl[5] = { SBC_JOINT_STEREO, SBC_STEREO, SBC_DUAL, 0, SBC_MONO }; |
| 617 | |
| 618 | /* lookup table for converting number of blocks */ |
| 619 | UINT16 codec_block_tbl[5] = { 16, 12, 8, 0, 4 }; |
| 620 | |
| 621 | /* lookup table to convert freq */ |
| 622 | UINT16 freq_block_tbl[5] = { SBC_sf48000, SBC_sf44100, SBC_sf32000, 0, SBC_sf16000 }; |
| 623 | |
| 624 | APPL_TRACE_DEBUG0("btif_a2dp_encoder_init"); |
| 625 | |
| 626 | /* Retrieve the current SBC configuration (default if currently not used) */ |
| 627 | bta_av_co_audio_get_sbc_config(&sbc_config, &minmtu); |
| 628 | msg.NumOfSubBands = (sbc_config.num_subbands == A2D_SBC_IE_SUBBAND_4) ? 4 : 8; |
| 629 | msg.NumOfBlocks = codec_block_tbl[sbc_config.block_len >> 5]; |
| 630 | msg.AllocationMethod = (sbc_config.alloc_mthd == A2D_SBC_IE_ALLOC_MD_L) ? SBC_LOUDNESS : SBC_SNR; |
| 631 | msg.ChannelMode = codec_mode_tbl[sbc_config.ch_mode >> 1]; |
| 632 | msg.SamplingFreq = freq_block_tbl[sbc_config.samp_freq >> 5]; |
| 633 | msg.MtuSize = minmtu; |
| 634 | |
| 635 | APPL_TRACE_EVENT1("msg.ChannelMode %x", msg.ChannelMode); |
| 636 | |
| 637 | /* Init the media task to encode SBC properly */ |
| 638 | btif_media_task_enc_init_req(&msg); |
| 639 | } |
| 640 | |
| 641 | static void btif_a2dp_encoder_update(void) |
| 642 | { |
| 643 | UINT16 minmtu; |
| 644 | tA2D_SBC_CIE sbc_config; |
| 645 | tBTIF_MEDIA_UPDATE_AUDIO msg; |
| 646 | UINT8 pref_min; |
| 647 | UINT8 pref_max; |
| 648 | |
| 649 | APPL_TRACE_DEBUG0("btif_a2dp_encoder_update"); |
| 650 | |
| 651 | /* Retrieve the current SBC configuration (default if currently not used) */ |
| 652 | bta_av_co_audio_get_sbc_config(&sbc_config, &minmtu); |
| 653 | |
| 654 | APPL_TRACE_DEBUG4("btif_a2dp_encoder_update: Common min_bitpool:%d(0x%x) max_bitpool:%d(0x%x)", |
| 655 | sbc_config.min_bitpool, sbc_config.min_bitpool, |
| 656 | sbc_config.max_bitpool, sbc_config.max_bitpool); |
| 657 | |
| 658 | if (sbc_config.min_bitpool > sbc_config.max_bitpool) |
| 659 | { |
| 660 | APPL_TRACE_ERROR0("btif_a2dp_encoder_update: ERROR btif_a2dp_encoder_update min_bitpool > max_bitpool"); |
| 661 | } |
| 662 | |
| 663 | /* check if remote sink has a preferred bitpool range */ |
| 664 | if (bta_av_co_get_remote_bitpool_pref(&pref_min, &pref_max) == TRUE) |
| 665 | { |
| 666 | /* adjust our preferred bitpool with the remote preference if within |
| 667 | our capable range */ |
| 668 | |
| 669 | if (pref_min < sbc_config.min_bitpool) |
| 670 | pref_min = sbc_config.min_bitpool; |
| 671 | |
| 672 | if (pref_max > sbc_config.max_bitpool) |
| 673 | pref_max = sbc_config.max_bitpool; |
| 674 | |
| 675 | msg.MinBitPool = pref_min; |
| 676 | msg.MaxBitPool = pref_max; |
| 677 | |
| 678 | if ((pref_min != sbc_config.min_bitpool) || (pref_max != sbc_config.max_bitpool)) |
| 679 | { |
| 680 | APPL_TRACE_EVENT2("## adjusted our bitpool range to peer pref [%d:%d] ##", |
| 681 | pref_min, pref_max); |
| 682 | } |
| 683 | } |
| 684 | else |
| 685 | { |
| 686 | msg.MinBitPool = sbc_config.min_bitpool; |
| 687 | msg.MaxBitPool = sbc_config.max_bitpool; |
| 688 | } |
| 689 | |
| 690 | msg.MinMtuSize = minmtu; |
| 691 | |
| 692 | /* Update the media task to encode SBC properly */ |
| 693 | btif_media_task_enc_update_req(&msg); |
| 694 | } |
| 695 | |
| 696 | |
| 697 | /***************************************************************************** |
| 698 | ** |
| 699 | ** Function btif_a2dp_start_media_task |
| 700 | ** |
| 701 | ** Description |
| 702 | ** |
| 703 | ** Returns |
| 704 | ** |
| 705 | *******************************************************************************/ |
| 706 | |
| 707 | int btif_a2dp_start_media_task(void) |
| 708 | { |
| 709 | int retval; |
| 710 | |
| 711 | if (media_task_running != MEDIA_TASK_STATE_OFF) |
| 712 | { |
| 713 | APPL_TRACE_ERROR0("warning : media task already running"); |
| 714 | return GKI_FAILURE; |
| 715 | } |
| 716 | |
| 717 | APPL_TRACE_EVENT0("## A2DP START MEDIA TASK ##"); |
| 718 | |
| 719 | /* start a2dp media task */ |
| 720 | retval = GKI_create_task((TASKPTR)btif_media_task, A2DP_MEDIA_TASK, |
| 721 | A2DP_MEDIA_TASK_TASK_STR, |
| 722 | (UINT16 *) ((UINT8 *)a2dp_media_task_stack + A2DP_MEDIA_TASK_STACK_SIZE), |
| 723 | sizeof(a2dp_media_task_stack)); |
| 724 | |
| 725 | if (retval != GKI_SUCCESS) |
| 726 | return retval; |
| 727 | |
| 728 | /* wait for task to come up to sure we are able to send messages to it */ |
| 729 | while (media_task_running == MEDIA_TASK_STATE_OFF) |
| 730 | usleep(10); |
| 731 | |
| 732 | APPL_TRACE_EVENT0("## A2DP MEDIA TASK STARTED ##"); |
| 733 | |
| 734 | return retval; |
| 735 | } |
| 736 | |
| 737 | /***************************************************************************** |
| 738 | ** |
| 739 | ** Function btif_a2dp_stop_media_task |
| 740 | ** |
| 741 | ** Description |
| 742 | ** |
| 743 | ** Returns |
| 744 | ** |
| 745 | *******************************************************************************/ |
| 746 | |
| 747 | void btif_a2dp_stop_media_task(void) |
| 748 | { |
| 749 | APPL_TRACE_EVENT0("## A2DP STOP MEDIA TASK ##"); |
| 750 | GKI_destroy_task(BT_MEDIA_TASK); |
| 751 | } |
| 752 | |
| 753 | /***************************************************************************** |
| 754 | ** |
| 755 | ** Function btif_a2dp_on_init |
| 756 | ** |
| 757 | ** Description |
| 758 | ** |
| 759 | ** Returns |
| 760 | ** |
| 761 | *******************************************************************************/ |
| 762 | |
| 763 | void btif_a2dp_on_init(void) |
| 764 | { |
| 765 | //tput_mon(1, 0, 1); |
| 766 | } |
| 767 | |
| 768 | |
| 769 | /***************************************************************************** |
| 770 | ** |
| 771 | ** Function btif_a2dp_setup_codec |
| 772 | ** |
| 773 | ** Description |
| 774 | ** |
| 775 | ** Returns |
| 776 | ** |
| 777 | *******************************************************************************/ |
| 778 | |
| 779 | void btif_a2dp_setup_codec(void) |
| 780 | { |
| 781 | tBTIF_AV_MEDIA_FEEDINGS media_feeding; |
| 782 | tBTIF_STATUS status; |
| 783 | |
| 784 | APPL_TRACE_EVENT0("## A2DP SETUP CODEC ##"); |
| 785 | |
| 786 | GKI_disable(); |
| 787 | |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 788 | /* for now hardcode 44.1 khz 16 bit stereo PCM format */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 789 | media_feeding.cfg.pcm.sampling_freq = 44100; |
| 790 | media_feeding.cfg.pcm.bit_per_sample = 16; |
| 791 | media_feeding.cfg.pcm.num_channel = 2; |
| 792 | media_feeding.format = BTIF_AV_CODEC_PCM; |
| 793 | |
| 794 | if (bta_av_co_audio_set_codec(&media_feeding, &status)) |
| 795 | { |
| 796 | tBTIF_MEDIA_INIT_AUDIO_FEEDING mfeed; |
| 797 | |
| 798 | /* Init the encoding task */ |
| 799 | btif_a2dp_encoder_init(); |
| 800 | |
| 801 | /* Build the media task configuration */ |
| 802 | mfeed.feeding = media_feeding; |
| 803 | mfeed.feeding_mode = BTIF_AV_FEEDING_ASYNCHRONOUS; |
| 804 | /* Send message to Media task to configure transcoding */ |
| 805 | btif_media_task_audio_feeding_init_req(&mfeed); |
| 806 | } |
| 807 | |
| 808 | GKI_enable(); |
| 809 | } |
| 810 | |
| 811 | |
| 812 | /***************************************************************************** |
| 813 | ** |
| 814 | ** Function btif_a2dp_on_idle |
| 815 | ** |
| 816 | ** Description |
| 817 | ** |
| 818 | ** Returns |
| 819 | ** |
| 820 | *******************************************************************************/ |
| 821 | |
| 822 | void btif_a2dp_on_idle(void) |
| 823 | { |
| 824 | APPL_TRACE_EVENT0("## ON A2DP IDLE ##"); |
| 825 | |
| 826 | /* Make sure media task is stopped */ |
| 827 | btif_media_task_stop_aa_req(); |
| 828 | |
| 829 | bta_av_co_init(); |
| 830 | } |
| 831 | |
| 832 | /***************************************************************************** |
| 833 | ** |
| 834 | ** Function btif_a2dp_on_open |
| 835 | ** |
| 836 | ** Description |
| 837 | ** |
| 838 | ** Returns |
| 839 | ** |
| 840 | *******************************************************************************/ |
| 841 | |
| 842 | void btif_a2dp_on_open(void) |
| 843 | { |
| 844 | APPL_TRACE_EVENT0("## ON A2DP OPEN ##"); |
| 845 | |
| 846 | /* always use callback to notify socket events */ |
| 847 | UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb); |
| 848 | } |
| 849 | |
| 850 | /***************************************************************************** |
| 851 | ** |
| 852 | ** Function btif_a2dp_on_started |
| 853 | ** |
| 854 | ** Description |
| 855 | ** |
| 856 | ** Returns |
| 857 | ** |
| 858 | *******************************************************************************/ |
| 859 | |
Zhihai Xu | 379743b | 2013-09-29 13:42:13 -0700 | [diff] [blame] | 860 | BOOLEAN btif_a2dp_on_started(tBTA_AV_START *p_av, BOOLEAN pending_start) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 861 | { |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 862 | tBTIF_STATUS status; |
Zhihai Xu | 379743b | 2013-09-29 13:42:13 -0700 | [diff] [blame] | 863 | BOOLEAN ack = FALSE; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 864 | |
| 865 | APPL_TRACE_EVENT0("## ON A2DP STARTED ##"); |
| 866 | |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 867 | if (p_av == NULL) |
| 868 | { |
| 869 | /* ack back a local start request */ |
| 870 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); |
Zhihai Xu | 379743b | 2013-09-29 13:42:13 -0700 | [diff] [blame] | 871 | return TRUE; |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 872 | } |
| 873 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 874 | if (p_av->status == BTA_AV_SUCCESS) |
| 875 | { |
| 876 | if (p_av->suspending == FALSE) |
| 877 | { |
| 878 | if (p_av->initiator) |
| 879 | { |
Zhihai Xu | 379743b | 2013-09-29 13:42:13 -0700 | [diff] [blame] | 880 | if (pending_start) { |
| 881 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS); |
| 882 | ack = TRUE; |
| 883 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 884 | } |
| 885 | else |
| 886 | { |
| 887 | /* we were remotely started, make sure codec |
| 888 | is setup before datapath is started */ |
| 889 | btif_a2dp_setup_codec(); |
| 890 | } |
| 891 | |
| 892 | /* media task is autostarted upon a2dp audiopath connection */ |
| 893 | } |
| 894 | } |
Zhihai Xu | 379743b | 2013-09-29 13:42:13 -0700 | [diff] [blame] | 895 | else if (pending_start) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 896 | { |
| 897 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); |
Zhihai Xu | 379743b | 2013-09-29 13:42:13 -0700 | [diff] [blame] | 898 | ack = TRUE; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 899 | } |
Zhihai Xu | 379743b | 2013-09-29 13:42:13 -0700 | [diff] [blame] | 900 | return ack; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 901 | } |
| 902 | |
| 903 | |
| 904 | /***************************************************************************** |
| 905 | ** |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 906 | ** Function btif_a2dp_ack_fail |
| 907 | ** |
| 908 | ** Description |
| 909 | ** |
| 910 | ** Returns |
| 911 | ** |
| 912 | *******************************************************************************/ |
| 913 | |
| 914 | void btif_a2dp_ack_fail(void) |
| 915 | { |
| 916 | tBTIF_STATUS status; |
| 917 | |
| 918 | APPL_TRACE_EVENT0("## A2DP_CTRL_ACK_FAILURE ##"); |
| 919 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); |
| 920 | } |
| 921 | |
| 922 | /***************************************************************************** |
| 923 | ** |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 924 | ** Function btif_a2dp_on_stopped |
| 925 | ** |
| 926 | ** Description |
| 927 | ** |
| 928 | ** Returns |
| 929 | ** |
| 930 | *******************************************************************************/ |
| 931 | |
| 932 | void btif_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av) |
| 933 | { |
| 934 | APPL_TRACE_EVENT0("## ON A2DP STOPPED ##"); |
| 935 | |
| 936 | /* allow using this api for other than suspend */ |
| 937 | if (p_av != NULL) |
| 938 | { |
| 939 | if (p_av->status != BTA_AV_SUCCESS) |
| 940 | { |
| 941 | APPL_TRACE_EVENT1("AV STOP FAILED (%d)", p_av->status); |
| 942 | |
| 943 | if (p_av->initiator) |
| 944 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); |
| 945 | return; |
| 946 | } |
| 947 | } |
| 948 | |
| 949 | /* ensure tx frames are immediately suspended */ |
| 950 | btif_media_cb.tx_flush = 1; |
| 951 | |
| 952 | /* request to stop media task */ |
| 953 | btif_media_task_aa_tx_flush_req(); |
| 954 | btif_media_task_stop_aa_req(); |
| 955 | |
| 956 | /* once stream is fully stopped we will ack back */ |
| 957 | } |
| 958 | |
| 959 | |
| 960 | /***************************************************************************** |
| 961 | ** |
| 962 | ** Function btif_a2dp_on_suspended |
| 963 | ** |
| 964 | ** Description |
| 965 | ** |
| 966 | ** Returns |
| 967 | ** |
| 968 | *******************************************************************************/ |
| 969 | |
| 970 | void btif_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av) |
| 971 | { |
| 972 | APPL_TRACE_EVENT0("## ON A2DP SUSPENDED ##"); |
| 973 | |
| 974 | /* check for status failures */ |
| 975 | if (p_av->status != BTA_AV_SUCCESS) |
| 976 | { |
| 977 | if (p_av->initiator == TRUE) |
| 978 | a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE); |
| 979 | } |
| 980 | |
| 981 | /* once stream is fully stopped we will ack back */ |
| 982 | |
| 983 | /* ensure tx frames are immediately flushed */ |
| 984 | btif_media_cb.tx_flush = 1; |
| 985 | |
| 986 | /* stop timer tick */ |
| 987 | btif_media_task_stop_aa_req(); |
| 988 | } |
| 989 | |
| 990 | /* when true media task discards any tx frames */ |
| 991 | void btif_a2dp_set_tx_flush(BOOLEAN enable) |
| 992 | { |
| 993 | APPL_TRACE_EVENT1("## DROP TX %d ##", enable); |
| 994 | btif_media_cb.tx_flush = enable; |
| 995 | } |
| 996 | |
| 997 | /***************************************************************************** |
| 998 | ** |
| 999 | ** Function btif_calc_pcmtime |
| 1000 | ** |
| 1001 | ** Description Calculates the pcmtime equivalent of a datapacket |
| 1002 | ** |
| 1003 | ** Returns microseconds |
| 1004 | ** |
| 1005 | *******************************************************************************/ |
| 1006 | |
| 1007 | static int btif_calc_pcmtime(UINT32 bytes_processed) |
| 1008 | { |
| 1009 | int pcm_time_us = 0; |
| 1010 | tBTIF_AV_MEDIA_FEED_CFG *p_cfg; |
| 1011 | |
| 1012 | p_cfg = &btif_media_cb.media_feeding.cfg; |
| 1013 | |
| 1014 | /* calculate corresponding pcm time based on data processed */ |
| 1015 | switch(btif_media_cb.media_feeding.format) |
| 1016 | { |
| 1017 | case BTIF_AV_CODEC_PCM: |
| 1018 | pcm_time_us = (bytes_processed*1000000)/ |
| 1019 | (p_cfg->pcm.num_channel*p_cfg->pcm.sampling_freq*p_cfg->pcm.bit_per_sample/8); |
| 1020 | break; |
| 1021 | |
| 1022 | default : |
| 1023 | APPL_TRACE_ERROR1("mediafeeding format invalid : %d", btif_media_cb.media_feeding.format); |
| 1024 | break; |
| 1025 | } |
| 1026 | |
| 1027 | return pcm_time_us; |
| 1028 | } |
| 1029 | |
| 1030 | |
| 1031 | /******************************************************************************* |
| 1032 | ** |
| 1033 | ** Function btif_media_task_aa_handle_timer |
| 1034 | ** |
| 1035 | ** Description |
| 1036 | ** |
| 1037 | ** Returns void |
| 1038 | ** |
| 1039 | *******************************************************************************/ |
| 1040 | |
| 1041 | static void btif_media_task_aa_handle_timer(void) |
| 1042 | { |
| 1043 | #if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) |
| 1044 | static UINT16 Debug = 0; |
| 1045 | APPL_TRACE_DEBUG1("btif_media_task_aa_handle_timer: %d", Debug++); |
| 1046 | #endif |
| 1047 | |
| 1048 | log_tstamps_us("media task tx timer"); |
| 1049 | |
| 1050 | #if (BTA_AV_INCLUDED == TRUE) |
Hemant Gupta | e7c4f99 | 2013-09-05 19:42:50 +0530 | [diff] [blame^] | 1051 | if(btif_media_cb.is_tx_timer == TRUE) |
| 1052 | { |
| 1053 | btif_media_send_aa_frame(); |
| 1054 | } |
| 1055 | else |
| 1056 | { |
| 1057 | APPL_TRACE_ERROR0("ERROR Media task Scheduled after Suspend"); |
| 1058 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1059 | #endif |
| 1060 | } |
| 1061 | |
| 1062 | #if (BTA_AV_INCLUDED == TRUE) |
| 1063 | /******************************************************************************* |
| 1064 | ** |
| 1065 | ** Function btif_media_task_aa_handle_timer |
| 1066 | ** |
| 1067 | ** Description |
| 1068 | ** |
| 1069 | ** Returns void |
| 1070 | ** |
| 1071 | *******************************************************************************/ |
| 1072 | static void btif_media_task_aa_handle_uipc_rx_rdy(void) |
| 1073 | { |
| 1074 | #if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) |
| 1075 | static UINT16 Debug = 0; |
| 1076 | APPL_TRACE_DEBUG1("btif_media_task_aa_handle_uipc_rx_rdy: %d", Debug++); |
| 1077 | #endif |
| 1078 | |
| 1079 | /* process all the UIPC data */ |
| 1080 | btif_media_aa_prep_2_send(0xFF); |
| 1081 | |
| 1082 | /* send it */ |
| 1083 | VERBOSE("btif_media_task_aa_handle_uipc_rx_rdy calls bta_av_ci_src_data_ready"); |
| 1084 | bta_av_ci_src_data_ready(BTA_AV_CHNL_AUDIO); |
| 1085 | } |
| 1086 | #endif |
| 1087 | |
| 1088 | /******************************************************************************* |
| 1089 | ** |
| 1090 | ** Function btif_media_task_init |
| 1091 | ** |
| 1092 | ** Description |
| 1093 | ** |
| 1094 | ** Returns void |
| 1095 | ** |
| 1096 | *******************************************************************************/ |
| 1097 | |
| 1098 | void btif_media_task_init(void) |
| 1099 | { |
| 1100 | memset(&(btif_media_cb), 0, sizeof(btif_media_cb)); |
| 1101 | |
| 1102 | UIPC_Init(NULL); |
| 1103 | |
| 1104 | #if (BTA_AV_INCLUDED == TRUE) |
| 1105 | UIPC_Open(UIPC_CH_ID_AV_CTRL , btif_a2dp_ctrl_cb); |
| 1106 | #endif |
| 1107 | |
| 1108 | |
| 1109 | } |
| 1110 | /******************************************************************************* |
| 1111 | ** |
| 1112 | ** Function btif_media_task |
| 1113 | ** |
| 1114 | ** Description Task for SBC encoder. This task receives an |
| 1115 | ** event when the waveIn interface has a pcm data buffer |
| 1116 | ** ready. On receiving the event, handle all ready pcm |
| 1117 | ** data buffers. If stream is started, run the SBC encoder |
| 1118 | ** on each chunk of pcm samples and build an output packet |
| 1119 | ** consisting of one or more encoded SBC frames. |
| 1120 | ** |
| 1121 | ** Returns void |
| 1122 | ** |
| 1123 | *******************************************************************************/ |
| 1124 | int btif_media_task(void *p) |
| 1125 | { |
| 1126 | UINT16 event; |
| 1127 | BT_HDR *p_msg; |
Mike J. Chen | 5cd8bff | 2014-01-31 18:16:59 -0800 | [diff] [blame] | 1128 | UNUSED(p); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1129 | |
| 1130 | VERBOSE("================ MEDIA TASK STARTING ================"); |
| 1131 | |
| 1132 | btif_media_task_init(); |
| 1133 | |
| 1134 | media_task_running = MEDIA_TASK_STATE_ON; |
| 1135 | |
| 1136 | raise_priority_a2dp(TASK_HIGH_MEDIA); |
| 1137 | |
| 1138 | while (1) |
| 1139 | { |
| 1140 | event = GKI_wait(0xffff, 0); |
| 1141 | |
| 1142 | VERBOSE("================= MEDIA TASK EVENT %d ===============", event); |
| 1143 | |
| 1144 | if (event & BTIF_MEDIA_TASK_CMD) |
| 1145 | { |
| 1146 | /* Process all messages in the queue */ |
| 1147 | while ((p_msg = (BT_HDR *) GKI_read_mbox(BTIF_MEDIA_TASK_CMD_MBOX)) != NULL) |
| 1148 | { |
| 1149 | btif_media_task_handle_cmd(p_msg); |
| 1150 | } |
| 1151 | } |
| 1152 | |
| 1153 | if (event & BTIF_MEDIA_TASK_DATA) |
| 1154 | { |
| 1155 | /* Process all messages in the queue */ |
| 1156 | while ((p_msg = (BT_HDR *) GKI_read_mbox(BTIF_MEDIA_TASK_DATA_MBOX)) != NULL) |
| 1157 | { |
| 1158 | btif_media_task_handle_media(p_msg); |
| 1159 | } |
| 1160 | } |
| 1161 | |
| 1162 | if (event & BTIF_MEDIA_AA_TASK_TIMER) |
| 1163 | { |
| 1164 | /* advance audio timer expiration */ |
| 1165 | btif_media_task_aa_handle_timer(); |
| 1166 | } |
| 1167 | |
| 1168 | |
| 1169 | VERBOSE("=============== MEDIA TASK EVENT %d DONE ============", event); |
| 1170 | |
| 1171 | /* When we get this event we exit the task - should only happen on GKI_shutdown */ |
| 1172 | if (event & BTIF_MEDIA_TASK_KILL) |
| 1173 | { |
| 1174 | /* make sure no channels are restarted while shutting down */ |
| 1175 | media_task_running = MEDIA_TASK_STATE_SHUTTING_DOWN; |
| 1176 | |
| 1177 | /* this calls blocks until uipc is fully closed */ |
| 1178 | UIPC_Close(UIPC_CH_ID_ALL); |
| 1179 | break; |
| 1180 | } |
| 1181 | } |
| 1182 | |
| 1183 | /* Clear media task flag */ |
| 1184 | media_task_running = MEDIA_TASK_STATE_OFF; |
| 1185 | |
| 1186 | APPL_TRACE_DEBUG0("MEDIA TASK EXITING"); |
| 1187 | |
| 1188 | return 0; |
| 1189 | } |
| 1190 | |
| 1191 | |
| 1192 | /******************************************************************************* |
| 1193 | ** |
| 1194 | ** Function btif_media_task_send_cmd_evt |
| 1195 | ** |
| 1196 | ** Description |
| 1197 | ** |
| 1198 | ** Returns TRUE is success |
| 1199 | ** |
| 1200 | *******************************************************************************/ |
| 1201 | BOOLEAN btif_media_task_send_cmd_evt(UINT16 Evt) |
| 1202 | { |
| 1203 | BT_HDR *p_buf; |
| 1204 | if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) |
| 1205 | { |
| 1206 | return FALSE; |
| 1207 | } |
| 1208 | |
| 1209 | p_buf->event = Evt; |
| 1210 | |
| 1211 | GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); |
| 1212 | return TRUE; |
| 1213 | } |
| 1214 | |
| 1215 | /******************************************************************************* |
| 1216 | ** |
| 1217 | ** Function btif_media_flush_q |
| 1218 | ** |
| 1219 | ** Description |
| 1220 | ** |
| 1221 | ** Returns void |
| 1222 | ** |
| 1223 | *******************************************************************************/ |
| 1224 | static void btif_media_flush_q(BUFFER_Q *p_q) |
| 1225 | { |
| 1226 | while (GKI_IS_QUEUE_EMPTY(p_q) == FALSE) |
| 1227 | { |
| 1228 | GKI_freebuf(GKI_dequeue(p_q)); |
| 1229 | } |
| 1230 | } |
| 1231 | |
| 1232 | |
| 1233 | /******************************************************************************* |
| 1234 | ** |
| 1235 | ** Function btif_media_task_handle_cmd |
| 1236 | ** |
| 1237 | ** Description |
| 1238 | ** |
| 1239 | ** Returns void |
| 1240 | ** |
| 1241 | *******************************************************************************/ |
| 1242 | static void btif_media_task_handle_cmd(BT_HDR *p_msg) |
| 1243 | { |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1244 | VERBOSE("btif_media_task_handle_cmd : %d %s", p_msg->event, |
| 1245 | dump_media_event(p_msg->event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1246 | |
| 1247 | switch (p_msg->event) |
| 1248 | { |
| 1249 | #if (BTA_AV_INCLUDED == TRUE) |
| 1250 | case BTIF_MEDIA_START_AA_TX: |
| 1251 | btif_media_task_aa_start_tx(); |
| 1252 | break; |
| 1253 | case BTIF_MEDIA_STOP_AA_TX: |
| 1254 | btif_media_task_aa_stop_tx(); |
| 1255 | break; |
| 1256 | case BTIF_MEDIA_SBC_ENC_INIT: |
| 1257 | btif_media_task_enc_init(p_msg); |
| 1258 | break; |
| 1259 | case BTIF_MEDIA_SBC_ENC_UPDATE: |
| 1260 | btif_media_task_enc_update(p_msg); |
| 1261 | break; |
| 1262 | case BTIF_MEDIA_AUDIO_FEEDING_INIT: |
| 1263 | btif_media_task_audio_feeding_init(p_msg); |
| 1264 | break; |
| 1265 | case BTIF_MEDIA_FLUSH_AA_TX: |
| 1266 | btif_media_task_aa_tx_flush(p_msg); |
| 1267 | break; |
| 1268 | case BTIF_MEDIA_UIPC_RX_RDY: |
| 1269 | btif_media_task_aa_handle_uipc_rx_rdy(); |
| 1270 | break; |
| 1271 | #endif |
| 1272 | default: |
| 1273 | APPL_TRACE_ERROR1("ERROR in btif_media_task_handle_cmd unknown event %d", p_msg->event); |
| 1274 | } |
| 1275 | GKI_freebuf(p_msg); |
| 1276 | VERBOSE("btif_media_task_handle_cmd : %s DONE", dump_media_event(p_msg->event)); |
| 1277 | } |
| 1278 | |
| 1279 | /******************************************************************************* |
| 1280 | ** |
| 1281 | ** Function btif_media_task_handle_media |
| 1282 | ** |
| 1283 | ** Description |
| 1284 | ** |
| 1285 | ** Returns void |
| 1286 | ** |
| 1287 | *******************************************************************************/ |
| 1288 | static void btif_media_task_handle_media(BT_HDR *p_msg) |
| 1289 | { |
| 1290 | APPL_TRACE_ERROR0("ERROR btif_media_task_handle_media: not in use"); |
| 1291 | |
| 1292 | GKI_freebuf(p_msg); |
| 1293 | } |
| 1294 | |
| 1295 | |
| 1296 | |
| 1297 | |
| 1298 | #if (BTA_AV_INCLUDED == TRUE) |
| 1299 | /******************************************************************************* |
| 1300 | ** |
| 1301 | ** Function btif_media_task_enc_init_req |
| 1302 | ** |
| 1303 | ** Description |
| 1304 | ** |
| 1305 | ** Returns TRUE is success |
| 1306 | ** |
| 1307 | *******************************************************************************/ |
| 1308 | BOOLEAN btif_media_task_enc_init_req(tBTIF_MEDIA_INIT_AUDIO *p_msg) |
| 1309 | { |
| 1310 | tBTIF_MEDIA_INIT_AUDIO *p_buf; |
| 1311 | if (NULL == (p_buf = GKI_getbuf(sizeof(tBTIF_MEDIA_INIT_AUDIO)))) |
| 1312 | { |
| 1313 | return FALSE; |
| 1314 | } |
| 1315 | |
| 1316 | memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_INIT_AUDIO)); |
| 1317 | p_buf->hdr.event = BTIF_MEDIA_SBC_ENC_INIT; |
| 1318 | |
| 1319 | GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); |
| 1320 | return TRUE; |
| 1321 | } |
| 1322 | |
| 1323 | /******************************************************************************* |
| 1324 | ** |
| 1325 | ** Function btif_media_task_enc_update_req |
| 1326 | ** |
| 1327 | ** Description |
| 1328 | ** |
| 1329 | ** Returns TRUE is success |
| 1330 | ** |
| 1331 | *******************************************************************************/ |
| 1332 | BOOLEAN btif_media_task_enc_update_req(tBTIF_MEDIA_UPDATE_AUDIO *p_msg) |
| 1333 | { |
| 1334 | tBTIF_MEDIA_UPDATE_AUDIO *p_buf; |
| 1335 | if (NULL == (p_buf = GKI_getbuf(sizeof(tBTIF_MEDIA_UPDATE_AUDIO)))) |
| 1336 | { |
| 1337 | return FALSE; |
| 1338 | } |
| 1339 | |
| 1340 | memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_UPDATE_AUDIO)); |
| 1341 | p_buf->hdr.event = BTIF_MEDIA_SBC_ENC_UPDATE; |
| 1342 | |
| 1343 | GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); |
| 1344 | return TRUE; |
| 1345 | } |
| 1346 | |
| 1347 | /******************************************************************************* |
| 1348 | ** |
| 1349 | ** Function btif_media_task_audio_feeding_init_req |
| 1350 | ** |
| 1351 | ** Description |
| 1352 | ** |
| 1353 | ** Returns TRUE is success |
| 1354 | ** |
| 1355 | *******************************************************************************/ |
| 1356 | BOOLEAN btif_media_task_audio_feeding_init_req(tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_msg) |
| 1357 | { |
| 1358 | tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_buf; |
| 1359 | if (NULL == (p_buf = GKI_getbuf(sizeof(tBTIF_MEDIA_INIT_AUDIO_FEEDING)))) |
| 1360 | { |
| 1361 | return FALSE; |
| 1362 | } |
| 1363 | |
| 1364 | memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_INIT_AUDIO_FEEDING)); |
| 1365 | p_buf->hdr.event = BTIF_MEDIA_AUDIO_FEEDING_INIT; |
| 1366 | |
| 1367 | GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); |
| 1368 | return TRUE; |
| 1369 | } |
| 1370 | |
| 1371 | /******************************************************************************* |
| 1372 | ** |
| 1373 | ** Function btif_media_task_start_aa_req |
| 1374 | ** |
| 1375 | ** Description |
| 1376 | ** |
| 1377 | ** Returns TRUE is success |
| 1378 | ** |
| 1379 | *******************************************************************************/ |
| 1380 | BOOLEAN btif_media_task_start_aa_req(void) |
| 1381 | { |
| 1382 | BT_HDR *p_buf; |
| 1383 | if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) |
| 1384 | { |
| 1385 | APPL_TRACE_EVENT0("GKI failed"); |
| 1386 | return FALSE; |
| 1387 | } |
| 1388 | |
| 1389 | p_buf->event = BTIF_MEDIA_START_AA_TX; |
| 1390 | |
| 1391 | GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); |
| 1392 | return TRUE; |
| 1393 | } |
| 1394 | |
| 1395 | /******************************************************************************* |
| 1396 | ** |
| 1397 | ** Function btif_media_task_stop_aa_req |
| 1398 | ** |
| 1399 | ** Description |
| 1400 | ** |
| 1401 | ** Returns TRUE is success |
| 1402 | ** |
| 1403 | *******************************************************************************/ |
| 1404 | BOOLEAN btif_media_task_stop_aa_req(void) |
| 1405 | { |
| 1406 | BT_HDR *p_buf; |
| 1407 | if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) |
| 1408 | { |
| 1409 | return FALSE; |
| 1410 | } |
| 1411 | |
| 1412 | p_buf->event = BTIF_MEDIA_STOP_AA_TX; |
| 1413 | |
| 1414 | GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); |
| 1415 | return TRUE; |
| 1416 | } |
| 1417 | |
| 1418 | /******************************************************************************* |
| 1419 | ** |
| 1420 | ** Function btif_media_task_aa_tx_flush_req |
| 1421 | ** |
| 1422 | ** Description |
| 1423 | ** |
| 1424 | ** Returns TRUE is success |
| 1425 | ** |
| 1426 | *******************************************************************************/ |
| 1427 | BOOLEAN btif_media_task_aa_tx_flush_req(void) |
| 1428 | { |
| 1429 | BT_HDR *p_buf; |
| 1430 | if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) |
| 1431 | { |
| 1432 | return FALSE; |
| 1433 | } |
| 1434 | |
| 1435 | p_buf->event = BTIF_MEDIA_FLUSH_AA_TX; |
| 1436 | |
| 1437 | GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_buf); |
| 1438 | return TRUE; |
| 1439 | } |
| 1440 | |
| 1441 | /******************************************************************************* |
| 1442 | ** |
| 1443 | ** Function btif_media_task_aa_tx_flush |
| 1444 | ** |
| 1445 | ** Description |
| 1446 | ** |
| 1447 | ** Returns void |
| 1448 | ** |
| 1449 | *******************************************************************************/ |
| 1450 | static void btif_media_task_aa_tx_flush(BT_HDR *p_msg) |
| 1451 | { |
Mike J. Chen | 5cd8bff | 2014-01-31 18:16:59 -0800 | [diff] [blame] | 1452 | UNUSED(p_msg); |
| 1453 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1454 | /* Flush all enqueued GKI music buffers (encoded) */ |
| 1455 | APPL_TRACE_DEBUG0("btif_media_task_aa_tx_flush"); |
| 1456 | |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1457 | btif_media_cb.media_feeding_state.pcm.counter = 0; |
| 1458 | btif_media_cb.media_feeding_state.pcm.aa_feed_residue = 0; |
| 1459 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1460 | btif_media_flush_q(&(btif_media_cb.TxAaQ)); |
| 1461 | |
| 1462 | UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_REQ_RX_FLUSH, NULL); |
| 1463 | } |
| 1464 | |
| 1465 | /******************************************************************************* |
| 1466 | ** |
| 1467 | ** Function btif_media_task_enc_init |
| 1468 | ** |
| 1469 | ** Description Initialize encoding task |
| 1470 | ** |
| 1471 | ** Returns void |
| 1472 | ** |
| 1473 | *******************************************************************************/ |
| 1474 | static void btif_media_task_enc_init(BT_HDR *p_msg) |
| 1475 | { |
| 1476 | tBTIF_MEDIA_INIT_AUDIO *pInitAudio = (tBTIF_MEDIA_INIT_AUDIO *) p_msg; |
| 1477 | |
| 1478 | APPL_TRACE_DEBUG0("btif_media_task_enc_init"); |
| 1479 | |
| 1480 | btif_media_cb.timestamp = 0; |
| 1481 | |
| 1482 | /* SBC encoder config (enforced even if not used) */ |
| 1483 | btif_media_cb.encoder.s16ChannelMode = pInitAudio->ChannelMode; |
| 1484 | btif_media_cb.encoder.s16NumOfSubBands = pInitAudio->NumOfSubBands; |
| 1485 | btif_media_cb.encoder.s16NumOfBlocks = pInitAudio->NumOfBlocks; |
| 1486 | btif_media_cb.encoder.s16AllocationMethod = pInitAudio->AllocationMethod; |
| 1487 | btif_media_cb.encoder.s16SamplingFreq = pInitAudio->SamplingFreq; |
| 1488 | |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1489 | btif_media_cb.encoder.u16BitRate = btif_media_task_get_sbc_rate(); |
| 1490 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1491 | /* Default transcoding is PCM to SBC, modified by feeding configuration */ |
| 1492 | btif_media_cb.TxTranscoding = BTIF_MEDIA_TRSCD_PCM_2_SBC; |
| 1493 | btif_media_cb.TxAaMtuSize = ((BTIF_MEDIA_AA_BUF_SIZE-BTIF_MEDIA_AA_SBC_OFFSET-sizeof(BT_HDR)) |
| 1494 | < pInitAudio->MtuSize) ? (BTIF_MEDIA_AA_BUF_SIZE - BTIF_MEDIA_AA_SBC_OFFSET |
| 1495 | - sizeof(BT_HDR)) : pInitAudio->MtuSize; |
| 1496 | |
| 1497 | APPL_TRACE_EVENT3("btif_media_task_enc_init busy %d, mtu %d, peer mtu %d", |
| 1498 | btif_media_cb.busy_level, btif_media_cb.TxAaMtuSize, pInitAudio->MtuSize); |
| 1499 | APPL_TRACE_EVENT6(" ch mode %d, subnd %d, nb blk %d, alloc %d, rate %d, freq %d", |
| 1500 | btif_media_cb.encoder.s16ChannelMode, btif_media_cb.encoder.s16NumOfSubBands, |
| 1501 | btif_media_cb.encoder.s16NumOfBlocks, |
| 1502 | btif_media_cb.encoder.s16AllocationMethod, btif_media_cb.encoder.u16BitRate, |
| 1503 | btif_media_cb.encoder.s16SamplingFreq); |
| 1504 | |
| 1505 | /* Reset entirely the SBC encoder */ |
| 1506 | SBC_Encoder_Init(&(btif_media_cb.encoder)); |
| 1507 | APPL_TRACE_DEBUG1("btif_media_task_enc_init bit pool %d", btif_media_cb.encoder.s16BitPool); |
| 1508 | } |
| 1509 | |
| 1510 | /******************************************************************************* |
| 1511 | ** |
| 1512 | ** Function btif_media_task_enc_update |
| 1513 | ** |
| 1514 | ** Description Update encoding task |
| 1515 | ** |
| 1516 | ** Returns void |
| 1517 | ** |
| 1518 | *******************************************************************************/ |
| 1519 | |
| 1520 | static void btif_media_task_enc_update(BT_HDR *p_msg) |
| 1521 | { |
| 1522 | tBTIF_MEDIA_UPDATE_AUDIO * pUpdateAudio = (tBTIF_MEDIA_UPDATE_AUDIO *) p_msg; |
| 1523 | SBC_ENC_PARAMS *pstrEncParams = &btif_media_cb.encoder; |
| 1524 | UINT16 s16SamplingFreq; |
| 1525 | SINT16 s16BitPool; |
| 1526 | SINT16 s16BitRate; |
| 1527 | SINT16 s16FrameLen; |
| 1528 | UINT8 protect = 0; |
| 1529 | |
| 1530 | APPL_TRACE_DEBUG3("btif_media_task_enc_update : minmtu %d, maxbp %d minbp %d", |
| 1531 | pUpdateAudio->MinMtuSize, pUpdateAudio->MaxBitPool, pUpdateAudio->MinBitPool); |
| 1532 | |
| 1533 | /* Only update the bitrate and MTU size while timer is running to make sure it has been initialized */ |
| 1534 | //if (btif_media_cb.is_tx_timer) |
| 1535 | { |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1536 | btif_media_cb.TxAaMtuSize = ((BTIF_MEDIA_AA_BUF_SIZE - |
| 1537 | BTIF_MEDIA_AA_SBC_OFFSET - sizeof(BT_HDR)) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1538 | < pUpdateAudio->MinMtuSize) ? (BTIF_MEDIA_AA_BUF_SIZE - BTIF_MEDIA_AA_SBC_OFFSET |
| 1539 | - sizeof(BT_HDR)) : pUpdateAudio->MinMtuSize; |
| 1540 | |
| 1541 | /* Set the initial target bit rate */ |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1542 | pstrEncParams->u16BitRate = btif_media_task_get_sbc_rate(); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1543 | |
| 1544 | if (pstrEncParams->s16SamplingFreq == SBC_sf16000) |
| 1545 | s16SamplingFreq = 16000; |
| 1546 | else if (pstrEncParams->s16SamplingFreq == SBC_sf32000) |
| 1547 | s16SamplingFreq = 32000; |
| 1548 | else if (pstrEncParams->s16SamplingFreq == SBC_sf44100) |
| 1549 | s16SamplingFreq = 44100; |
| 1550 | else |
| 1551 | s16SamplingFreq = 48000; |
| 1552 | |
| 1553 | do |
| 1554 | { |
| 1555 | if ((pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO) || |
| 1556 | (pstrEncParams->s16ChannelMode == SBC_STEREO) ) |
| 1557 | { |
| 1558 | s16BitPool = (SINT16)( (pstrEncParams->u16BitRate * |
| 1559 | pstrEncParams->s16NumOfSubBands * 1000 / s16SamplingFreq) |
| 1560 | -( (32 + (4 * pstrEncParams->s16NumOfSubBands * |
| 1561 | pstrEncParams->s16NumOfChannels) |
| 1562 | + ( (pstrEncParams->s16ChannelMode - 2) * |
| 1563 | pstrEncParams->s16NumOfSubBands ) ) |
| 1564 | / pstrEncParams->s16NumOfBlocks) ); |
| 1565 | |
| 1566 | s16FrameLen = 4 + (4*pstrEncParams->s16NumOfSubBands* |
| 1567 | pstrEncParams->s16NumOfChannels)/8 |
| 1568 | + ( ((pstrEncParams->s16ChannelMode - 2) * |
| 1569 | pstrEncParams->s16NumOfSubBands) |
| 1570 | + (pstrEncParams->s16NumOfBlocks * s16BitPool) ) / 8; |
| 1571 | |
| 1572 | s16BitRate = (8 * s16FrameLen * s16SamplingFreq) |
| 1573 | / (pstrEncParams->s16NumOfSubBands * |
| 1574 | pstrEncParams->s16NumOfBlocks * 1000); |
| 1575 | |
| 1576 | if (s16BitRate > pstrEncParams->u16BitRate) |
| 1577 | s16BitPool--; |
| 1578 | |
| 1579 | if(pstrEncParams->s16NumOfSubBands == 8) |
| 1580 | s16BitPool = (s16BitPool > 255) ? 255 : s16BitPool; |
| 1581 | else |
| 1582 | s16BitPool = (s16BitPool > 128) ? 128 : s16BitPool; |
| 1583 | } |
| 1584 | else |
| 1585 | { |
| 1586 | s16BitPool = (SINT16)( ((pstrEncParams->s16NumOfSubBands * |
| 1587 | pstrEncParams->u16BitRate * 1000) |
| 1588 | / (s16SamplingFreq * pstrEncParams->s16NumOfChannels)) |
| 1589 | -( ( (32 / pstrEncParams->s16NumOfChannels) + |
| 1590 | (4 * pstrEncParams->s16NumOfSubBands) ) |
| 1591 | / pstrEncParams->s16NumOfBlocks ) ); |
| 1592 | |
| 1593 | pstrEncParams->s16BitPool = (s16BitPool > |
| 1594 | (16 * pstrEncParams->s16NumOfSubBands)) |
| 1595 | ? (16*pstrEncParams->s16NumOfSubBands) : s16BitPool; |
| 1596 | } |
| 1597 | |
| 1598 | if (s16BitPool < 0) |
| 1599 | { |
| 1600 | s16BitPool = 0; |
| 1601 | } |
| 1602 | |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1603 | APPL_TRACE_EVENT2("bitpool candidate : %d (%d kbps)", |
| 1604 | s16BitPool, pstrEncParams->u16BitRate); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1605 | |
| 1606 | if (s16BitPool > pUpdateAudio->MaxBitPool) |
| 1607 | { |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1608 | APPL_TRACE_DEBUG1("btif_media_task_enc_update computed bitpool too large (%d)", |
| 1609 | s16BitPool); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1610 | /* Decrease bitrate */ |
| 1611 | btif_media_cb.encoder.u16BitRate -= BTIF_MEDIA_BITRATE_STEP; |
| 1612 | /* Record that we have decreased the bitrate */ |
| 1613 | protect |= 1; |
| 1614 | } |
| 1615 | else if (s16BitPool < pUpdateAudio->MinBitPool) |
| 1616 | { |
| 1617 | APPL_TRACE_WARNING1("btif_media_task_enc_update computed bitpool too small (%d)", s16BitPool); |
| 1618 | /* Increase bitrate */ |
| 1619 | btif_media_cb.encoder.u16BitRate += BTIF_MEDIA_BITRATE_STEP; |
| 1620 | /* Record that we have increased the bitrate */ |
| 1621 | protect |= 2; |
| 1622 | } |
| 1623 | else |
| 1624 | { |
| 1625 | break; |
| 1626 | } |
| 1627 | /* In case we have already increased and decreased the bitrate, just stop */ |
| 1628 | if (protect == 3) |
| 1629 | { |
| 1630 | APPL_TRACE_ERROR0("btif_media_task_enc_update could not find bitpool in range"); |
| 1631 | break; |
| 1632 | } |
| 1633 | } while (1); |
| 1634 | |
| 1635 | /* Finally update the bitpool in the encoder structure */ |
| 1636 | pstrEncParams->s16BitPool = s16BitPool; |
| 1637 | |
| 1638 | APPL_TRACE_DEBUG2("btif_media_task_enc_update final bit rate %d, final bit pool %d", |
| 1639 | btif_media_cb.encoder.u16BitRate, btif_media_cb.encoder.s16BitPool); |
| 1640 | |
| 1641 | /* make sure we reinitialize encoder with new settings */ |
| 1642 | SBC_Encoder_Init(&(btif_media_cb.encoder)); |
| 1643 | } |
| 1644 | } |
| 1645 | |
| 1646 | /******************************************************************************* |
| 1647 | ** |
| 1648 | ** Function btif_media_task_pcm2sbc_init |
| 1649 | ** |
| 1650 | ** Description Init encoding task for PCM to SBC according to feeding |
| 1651 | ** |
| 1652 | ** Returns void |
| 1653 | ** |
| 1654 | *******************************************************************************/ |
| 1655 | static void btif_media_task_pcm2sbc_init(tBTIF_MEDIA_INIT_AUDIO_FEEDING * p_feeding) |
| 1656 | { |
| 1657 | BOOLEAN reconfig_needed = FALSE; |
| 1658 | |
| 1659 | APPL_TRACE_DEBUG0("PCM feeding:"); |
| 1660 | APPL_TRACE_DEBUG1("sampling_freq:%d", p_feeding->feeding.cfg.pcm.sampling_freq); |
| 1661 | APPL_TRACE_DEBUG1("num_channel:%d", p_feeding->feeding.cfg.pcm.num_channel); |
| 1662 | APPL_TRACE_DEBUG1("bit_per_sample:%d", p_feeding->feeding.cfg.pcm.bit_per_sample); |
| 1663 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1664 | /* Check the PCM feeding sampling_freq */ |
| 1665 | switch (p_feeding->feeding.cfg.pcm.sampling_freq) |
| 1666 | { |
| 1667 | case 8000: |
| 1668 | case 12000: |
| 1669 | case 16000: |
| 1670 | case 24000: |
| 1671 | case 32000: |
| 1672 | case 48000: |
| 1673 | /* For these sampling_freq the AV connection must be 48000 */ |
| 1674 | if (btif_media_cb.encoder.s16SamplingFreq != SBC_sf48000) |
| 1675 | { |
| 1676 | /* Reconfiguration needed at 48000 */ |
| 1677 | APPL_TRACE_DEBUG0("SBC Reconfiguration needed at 48000"); |
| 1678 | btif_media_cb.encoder.s16SamplingFreq = SBC_sf48000; |
| 1679 | reconfig_needed = TRUE; |
| 1680 | } |
| 1681 | break; |
| 1682 | |
| 1683 | case 11025: |
| 1684 | case 22050: |
| 1685 | case 44100: |
| 1686 | /* For these sampling_freq the AV connection must be 44100 */ |
| 1687 | if (btif_media_cb.encoder.s16SamplingFreq != SBC_sf44100) |
| 1688 | { |
| 1689 | /* Reconfiguration needed at 44100 */ |
| 1690 | APPL_TRACE_DEBUG0("SBC Reconfiguration needed at 44100"); |
| 1691 | btif_media_cb.encoder.s16SamplingFreq = SBC_sf44100; |
| 1692 | reconfig_needed = TRUE; |
| 1693 | } |
| 1694 | break; |
| 1695 | default: |
| 1696 | APPL_TRACE_DEBUG0("Feeding PCM sampling_freq unsupported"); |
| 1697 | break; |
| 1698 | } |
| 1699 | |
| 1700 | /* Some AV Headsets do not support Mono => always ask for Stereo */ |
| 1701 | if (btif_media_cb.encoder.s16ChannelMode == SBC_MONO) |
| 1702 | { |
| 1703 | APPL_TRACE_DEBUG0("SBC Reconfiguration needed in Stereo"); |
| 1704 | btif_media_cb.encoder.s16ChannelMode = SBC_JOINT_STEREO; |
| 1705 | reconfig_needed = TRUE; |
| 1706 | } |
| 1707 | |
| 1708 | if (reconfig_needed != FALSE) |
| 1709 | { |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1710 | APPL_TRACE_DEBUG1("btif_media_task_pcm2sbc_init :: mtu %d", btif_media_cb.TxAaMtuSize); |
| 1711 | APPL_TRACE_DEBUG6("ch mode %d, nbsubd %d, nb %d, alloc %d, rate %d, freq %d", |
| 1712 | btif_media_cb.encoder.s16ChannelMode, |
| 1713 | btif_media_cb.encoder.s16NumOfSubBands, btif_media_cb.encoder.s16NumOfBlocks, |
| 1714 | btif_media_cb.encoder.s16AllocationMethod, btif_media_cb.encoder.u16BitRate, |
| 1715 | btif_media_cb.encoder.s16SamplingFreq); |
| 1716 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1717 | SBC_Encoder_Init(&(btif_media_cb.encoder)); |
| 1718 | } |
| 1719 | else |
| 1720 | { |
| 1721 | APPL_TRACE_DEBUG0("btif_media_task_pcm2sbc_init no SBC reconfig needed"); |
| 1722 | } |
| 1723 | } |
| 1724 | |
| 1725 | |
| 1726 | /******************************************************************************* |
| 1727 | ** |
| 1728 | ** Function btif_media_task_audio_feeding_init |
| 1729 | ** |
| 1730 | ** Description Initialize the audio path according to the feeding format |
| 1731 | ** |
| 1732 | ** Returns void |
| 1733 | ** |
| 1734 | *******************************************************************************/ |
| 1735 | static void btif_media_task_audio_feeding_init(BT_HDR *p_msg) |
| 1736 | { |
| 1737 | tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_feeding = (tBTIF_MEDIA_INIT_AUDIO_FEEDING *) p_msg; |
| 1738 | |
| 1739 | APPL_TRACE_DEBUG1("btif_media_task_audio_feeding_init format:%d", p_feeding->feeding.format); |
| 1740 | |
| 1741 | /* Save Media Feeding information */ |
| 1742 | btif_media_cb.feeding_mode = p_feeding->feeding_mode; |
| 1743 | btif_media_cb.media_feeding = p_feeding->feeding; |
| 1744 | |
| 1745 | /* Handle different feeding formats */ |
| 1746 | switch (p_feeding->feeding.format) |
| 1747 | { |
| 1748 | case BTIF_AV_CODEC_PCM: |
| 1749 | btif_media_cb.TxTranscoding = BTIF_MEDIA_TRSCD_PCM_2_SBC; |
| 1750 | btif_media_task_pcm2sbc_init(p_feeding); |
| 1751 | break; |
| 1752 | |
| 1753 | default : |
| 1754 | APPL_TRACE_ERROR1("unknown feeding format %d", p_feeding->feeding.format); |
| 1755 | break; |
| 1756 | } |
| 1757 | } |
| 1758 | |
| 1759 | /******************************************************************************* |
| 1760 | ** |
| 1761 | ** Function btif_media_task_uipc_cback |
| 1762 | ** |
| 1763 | ** Description UIPC call back function for synchronous mode only |
| 1764 | ** |
| 1765 | ** Returns void |
| 1766 | ** |
| 1767 | *******************************************************************************/ |
| 1768 | static void btif_media_task_uipc_cback(BT_HDR *p_msg) |
| 1769 | { |
| 1770 | /* Sanity check */ |
| 1771 | if (NULL == p_msg) |
| 1772 | { |
| 1773 | return; |
| 1774 | } |
| 1775 | |
| 1776 | /* Just handle RX_EVT */ |
| 1777 | if (p_msg->event != UIPC_RX_DATA_EVT) |
| 1778 | { |
| 1779 | return; |
| 1780 | } |
| 1781 | |
| 1782 | p_msg->event = BTIF_MEDIA_UIPC_RX_RDY; |
| 1783 | |
| 1784 | GKI_send_msg(BT_MEDIA_TASK, BTIF_MEDIA_TASK_CMD_MBOX, p_msg); |
| 1785 | } |
| 1786 | |
| 1787 | /******************************************************************************* |
| 1788 | ** |
| 1789 | ** Function btif_media_task_feeding_state_reset |
| 1790 | ** |
| 1791 | ** Description Reset the media feeding state |
| 1792 | ** |
| 1793 | ** Returns void |
| 1794 | ** |
| 1795 | *******************************************************************************/ |
| 1796 | static void btif_media_task_feeding_state_reset(void) |
| 1797 | { |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 1798 | APPL_TRACE_WARNING3("overflow %d, enter %d, exit %d", |
| 1799 | btif_media_cb.media_feeding_state.pcm.overflow_count, |
| 1800 | btif_media_cb.media_feeding_state.pcm.max_counter_enter, |
| 1801 | btif_media_cb.media_feeding_state.pcm.max_counter_exit); |
| 1802 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1803 | /* By default, just clear the entire state */ |
| 1804 | memset(&btif_media_cb.media_feeding_state, 0, sizeof(btif_media_cb.media_feeding_state)); |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1805 | |
| 1806 | if (btif_media_cb.TxTranscoding == BTIF_MEDIA_TRSCD_PCM_2_SBC) |
| 1807 | { |
| 1808 | btif_media_cb.media_feeding_state.pcm.bytes_per_tick = |
| 1809 | (btif_media_cb.media_feeding.cfg.pcm.sampling_freq * |
| 1810 | btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8 * |
| 1811 | btif_media_cb.media_feeding.cfg.pcm.num_channel * |
| 1812 | BTIF_MEDIA_TIME_TICK)/1000; |
| 1813 | |
| 1814 | APPL_TRACE_WARNING1("pcm bytes per tick %d", |
| 1815 | (int)btif_media_cb.media_feeding_state.pcm.bytes_per_tick); |
| 1816 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1817 | } |
| 1818 | /******************************************************************************* |
| 1819 | ** |
| 1820 | ** Function btif_media_task_aa_start_tx |
| 1821 | ** |
| 1822 | ** Description Start media task encoding |
| 1823 | ** |
| 1824 | ** Returns void |
| 1825 | ** |
| 1826 | *******************************************************************************/ |
| 1827 | static void btif_media_task_aa_start_tx(void) |
| 1828 | { |
| 1829 | APPL_TRACE_DEBUG2("btif_media_task_aa_start_tx is timer %d, feeding mode %d", |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1830 | btif_media_cb.is_tx_timer, btif_media_cb.feeding_mode); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1831 | |
| 1832 | /* Use a timer to poll the UIPC, get rid of the UIPC call back */ |
| 1833 | // UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_REG_CBACK, NULL); |
| 1834 | |
| 1835 | btif_media_cb.is_tx_timer = TRUE; |
| 1836 | |
| 1837 | /* Reset the media feeding state */ |
| 1838 | btif_media_task_feeding_state_reset(); |
| 1839 | |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1840 | APPL_TRACE_EVENT2("starting timer %d ticks (%d)", |
| 1841 | GKI_MS_TO_TICKS(BTIF_MEDIA_TIME_TICK), TICKS_PER_SEC); |
| 1842 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1843 | GKI_start_timer(BTIF_MEDIA_AA_TASK_TIMER_ID, GKI_MS_TO_TICKS(BTIF_MEDIA_TIME_TICK), TRUE); |
| 1844 | } |
| 1845 | |
| 1846 | /******************************************************************************* |
| 1847 | ** |
| 1848 | ** Function btif_media_task_aa_stop_tx |
| 1849 | ** |
| 1850 | ** Description Stop media task encoding |
| 1851 | ** |
| 1852 | ** Returns void |
| 1853 | ** |
| 1854 | *******************************************************************************/ |
| 1855 | static void btif_media_task_aa_stop_tx(void) |
| 1856 | { |
| 1857 | APPL_TRACE_DEBUG1("btif_media_task_aa_stop_tx is timer: %d", btif_media_cb.is_tx_timer); |
| 1858 | |
| 1859 | /* Stop the timer first */ |
| 1860 | GKI_stop_timer(BTIF_MEDIA_AA_TASK_TIMER_ID); |
| 1861 | btif_media_cb.is_tx_timer = FALSE; |
| 1862 | |
| 1863 | UIPC_Close(UIPC_CH_ID_AV_AUDIO); |
| 1864 | |
| 1865 | /* audio engine stopped, reset tx suspended flag */ |
| 1866 | btif_media_cb.tx_flush = 0; |
| 1867 | |
| 1868 | /* Reset the media feeding state */ |
| 1869 | btif_media_task_feeding_state_reset(); |
| 1870 | } |
| 1871 | |
| 1872 | /******************************************************************************* |
| 1873 | ** |
| 1874 | ** Function btif_get_num_aa_frame |
| 1875 | ** |
| 1876 | ** Description |
| 1877 | ** |
| 1878 | ** Returns The number of media frames in this time slice |
| 1879 | ** |
| 1880 | *******************************************************************************/ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1881 | static UINT8 btif_get_num_aa_frame(void) |
| 1882 | { |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 1883 | UINT32 result=0; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1884 | |
| 1885 | switch (btif_media_cb.TxTranscoding) |
| 1886 | { |
| 1887 | case BTIF_MEDIA_TRSCD_PCM_2_SBC: |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1888 | { |
| 1889 | UINT32 pcm_bytes_per_frame = btif_media_cb.encoder.s16NumOfSubBands * |
| 1890 | btif_media_cb.encoder.s16NumOfBlocks * |
| 1891 | btif_media_cb.media_feeding.cfg.pcm.num_channel * |
| 1892 | btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1893 | |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1894 | btif_media_cb.media_feeding_state.pcm.counter += |
| 1895 | btif_media_cb.media_feeding_state.pcm.bytes_per_tick; |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 1896 | if ((!btif_media_cb.media_feeding_state.pcm.overflow) || |
| 1897 | (btif_media_cb.TxAaQ.count < A2DP_PACKET_COUNT_LOW_WATERMARK)) { |
| 1898 | if (btif_media_cb.media_feeding_state.pcm.overflow) { |
| 1899 | btif_media_cb.media_feeding_state.pcm.overflow = FALSE; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1900 | |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 1901 | if (btif_media_cb.media_feeding_state.pcm.counter > |
| 1902 | btif_media_cb.media_feeding_state.pcm.max_counter_exit) { |
| 1903 | btif_media_cb.media_feeding_state.pcm.max_counter_exit = |
| 1904 | btif_media_cb.media_feeding_state.pcm.counter; |
| 1905 | } |
| 1906 | } |
| 1907 | /* calculate nbr of frames pending for this media tick */ |
| 1908 | result = btif_media_cb.media_feeding_state.pcm.counter/pcm_bytes_per_frame; |
| 1909 | if (result > MAX_PCM_FRAME_NUM_PER_TICK) result = MAX_PCM_FRAME_NUM_PER_TICK; |
| 1910 | btif_media_cb.media_feeding_state.pcm.counter -= result*pcm_bytes_per_frame; |
| 1911 | } else { |
| 1912 | result = 0; |
| 1913 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1914 | VERBOSE("WRITE %d FRAMES", result); |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1915 | } |
| 1916 | break; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1917 | |
| 1918 | default: |
| 1919 | APPL_TRACE_ERROR1("ERROR btif_get_num_aa_frame Unsupported transcoding format 0x%x", |
| 1920 | btif_media_cb.TxTranscoding); |
| 1921 | result = 0; |
| 1922 | break; |
| 1923 | } |
| 1924 | |
| 1925 | #if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) |
| 1926 | APPL_TRACE_DEBUG1("btif_get_num_aa_frame returns %d", result); |
| 1927 | #endif |
| 1928 | |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 1929 | return (UINT8)result; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1930 | } |
| 1931 | |
| 1932 | /******************************************************************************* |
| 1933 | ** |
| 1934 | ** Function btif_media_aa_readbuf |
| 1935 | ** |
| 1936 | ** Description This function is called by the av_co to get the next buffer to send |
| 1937 | ** |
| 1938 | ** |
| 1939 | ** Returns void |
| 1940 | *******************************************************************************/ |
| 1941 | BT_HDR *btif_media_aa_readbuf(void) |
| 1942 | { |
| 1943 | return GKI_dequeue(&(btif_media_cb.TxAaQ)); |
| 1944 | } |
| 1945 | |
| 1946 | /******************************************************************************* |
| 1947 | ** |
| 1948 | ** Function btif_media_aa_read_feeding |
| 1949 | ** |
| 1950 | ** Description |
| 1951 | ** |
| 1952 | ** Returns void |
| 1953 | ** |
| 1954 | *******************************************************************************/ |
| 1955 | |
| 1956 | BOOLEAN btif_media_aa_read_feeding(tUIPC_CH_ID channel_id) |
| 1957 | { |
| 1958 | UINT16 event; |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1959 | UINT16 blocm_x_subband = btif_media_cb.encoder.s16NumOfSubBands * \ |
| 1960 | btif_media_cb.encoder.s16NumOfBlocks; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1961 | UINT32 read_size; |
| 1962 | UINT16 sbc_sampling = 48000; |
| 1963 | UINT32 src_samples; |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 1964 | UINT16 bytes_needed = blocm_x_subband * btif_media_cb.encoder.s16NumOfChannels * \ |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1965 | btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1966 | static UINT16 up_sampled_buffer[SBC_MAX_NUM_FRAME * SBC_MAX_NUM_OF_BLOCKS |
| 1967 | * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS * 2]; |
| 1968 | static UINT16 read_buffer[SBC_MAX_NUM_FRAME * SBC_MAX_NUM_OF_BLOCKS |
| 1969 | * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS]; |
| 1970 | UINT32 src_size_used; |
| 1971 | UINT32 dst_size_used; |
| 1972 | BOOLEAN fract_needed; |
| 1973 | INT32 fract_max; |
| 1974 | INT32 fract_threshold; |
| 1975 | UINT32 nb_byte_read; |
| 1976 | |
| 1977 | /* Get the SBC sampling rate */ |
| 1978 | switch (btif_media_cb.encoder.s16SamplingFreq) |
| 1979 | { |
| 1980 | case SBC_sf48000: |
| 1981 | sbc_sampling = 48000; |
| 1982 | break; |
| 1983 | case SBC_sf44100: |
| 1984 | sbc_sampling = 44100; |
| 1985 | break; |
| 1986 | case SBC_sf32000: |
| 1987 | sbc_sampling = 32000; |
| 1988 | break; |
| 1989 | case SBC_sf16000: |
| 1990 | sbc_sampling = 16000; |
| 1991 | break; |
| 1992 | } |
| 1993 | |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 1994 | if (sbc_sampling == btif_media_cb.media_feeding.cfg.pcm.sampling_freq) { |
| 1995 | read_size = bytes_needed - btif_media_cb.media_feeding_state.pcm.aa_feed_residue; |
| 1996 | nb_byte_read = UIPC_Read(channel_id, &event, |
| 1997 | ((UINT8 *)btif_media_cb.encoder.as16PcmBuffer) + |
| 1998 | btif_media_cb.media_feeding_state.pcm.aa_feed_residue, |
| 1999 | read_size); |
| 2000 | if (nb_byte_read == read_size) { |
| 2001 | btif_media_cb.media_feeding_state.pcm.aa_feed_residue = 0; |
| 2002 | return TRUE; |
| 2003 | } else { |
| 2004 | APPL_TRACE_WARNING2("### UNDERFLOW :: ONLY READ %d BYTES OUT OF %d ###", |
| 2005 | nb_byte_read, read_size); |
| 2006 | btif_media_cb.media_feeding_state.pcm.aa_feed_residue += nb_byte_read; |
| 2007 | return FALSE; |
| 2008 | } |
| 2009 | } |
| 2010 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2011 | /* Some Feeding PCM frequencies require to split the number of sample */ |
| 2012 | /* to read. */ |
| 2013 | /* E.g 128/6=21.3333 => read 22 and 21 and 21 => max = 2; threshold = 0*/ |
| 2014 | fract_needed = FALSE; /* Default */ |
| 2015 | switch (btif_media_cb.media_feeding.cfg.pcm.sampling_freq) |
| 2016 | { |
| 2017 | case 32000: |
| 2018 | case 8000: |
| 2019 | fract_needed = TRUE; |
| 2020 | fract_max = 2; /* 0, 1 and 2 */ |
| 2021 | fract_threshold = 0; /* Add one for the first */ |
| 2022 | break; |
| 2023 | case 16000: |
| 2024 | fract_needed = TRUE; |
| 2025 | fract_max = 2; /* 0, 1 and 2 */ |
| 2026 | fract_threshold = 1; /* Add one for the first two frames*/ |
| 2027 | break; |
| 2028 | } |
| 2029 | |
| 2030 | /* Compute number of sample to read from source */ |
| 2031 | src_samples = blocm_x_subband; |
| 2032 | src_samples *= btif_media_cb.media_feeding.cfg.pcm.sampling_freq; |
| 2033 | src_samples /= sbc_sampling; |
| 2034 | |
| 2035 | /* The previous division may have a remainder not null */ |
| 2036 | if (fract_needed) |
| 2037 | { |
| 2038 | if (btif_media_cb.media_feeding_state.pcm.aa_feed_counter <= fract_threshold) |
| 2039 | { |
| 2040 | src_samples++; /* for every read before threshold add one sample */ |
| 2041 | } |
| 2042 | |
| 2043 | /* do nothing if counter >= threshold */ |
| 2044 | btif_media_cb.media_feeding_state.pcm.aa_feed_counter++; /* one more read */ |
| 2045 | if (btif_media_cb.media_feeding_state.pcm.aa_feed_counter > fract_max) |
| 2046 | { |
| 2047 | btif_media_cb.media_feeding_state.pcm.aa_feed_counter = 0; |
| 2048 | } |
| 2049 | } |
| 2050 | |
| 2051 | /* Compute number of bytes to read from source */ |
| 2052 | read_size = src_samples; |
| 2053 | read_size *= btif_media_cb.media_feeding.cfg.pcm.num_channel; |
| 2054 | read_size *= (btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8); |
| 2055 | |
| 2056 | /* Read Data from UIPC channel */ |
| 2057 | nb_byte_read = UIPC_Read(channel_id, &event, (UINT8 *)read_buffer, read_size); |
| 2058 | |
| 2059 | //tput_mon(TRUE, nb_byte_read, FALSE); |
| 2060 | |
| 2061 | if (nb_byte_read < read_size) |
| 2062 | { |
| 2063 | APPL_TRACE_WARNING2("### UNDERRUN :: ONLY READ %d BYTES OUT OF %d ###", |
| 2064 | nb_byte_read, read_size); |
| 2065 | |
| 2066 | if (nb_byte_read == 0) |
| 2067 | return FALSE; |
| 2068 | |
| 2069 | if(btif_media_cb.feeding_mode == BTIF_AV_FEEDING_ASYNCHRONOUS) |
| 2070 | { |
| 2071 | /* Fill the unfilled part of the read buffer with silence (0) */ |
| 2072 | memset(((UINT8 *)read_buffer) + nb_byte_read, 0, read_size - nb_byte_read); |
| 2073 | nb_byte_read = read_size; |
| 2074 | } |
| 2075 | } |
| 2076 | |
| 2077 | /* Initialize PCM up-sampling engine */ |
| 2078 | bta_av_sbc_init_up_sample(btif_media_cb.media_feeding.cfg.pcm.sampling_freq, |
| 2079 | sbc_sampling, btif_media_cb.media_feeding.cfg.pcm.bit_per_sample, |
| 2080 | btif_media_cb.media_feeding.cfg.pcm.num_channel); |
| 2081 | |
| 2082 | /* re-sample read buffer */ |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 2083 | /* The output PCM buffer will be stereo, 16 bit per sample */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2084 | dst_size_used = bta_av_sbc_up_sample((UINT8 *)read_buffer, |
| 2085 | (UINT8 *)up_sampled_buffer + btif_media_cb.media_feeding_state.pcm.aa_feed_residue, |
| 2086 | nb_byte_read, |
| 2087 | sizeof(up_sampled_buffer) - btif_media_cb.media_feeding_state.pcm.aa_feed_residue, |
| 2088 | &src_size_used); |
| 2089 | |
| 2090 | #if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 2091 | APPL_TRACE_DEBUG3("btif_media_aa_read_feeding readsz:%d src_size_used:%d dst_size_used:%d", |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2092 | read_size, src_size_used, dst_size_used); |
| 2093 | #endif |
| 2094 | |
| 2095 | /* update the residue */ |
| 2096 | btif_media_cb.media_feeding_state.pcm.aa_feed_residue += dst_size_used; |
| 2097 | |
| 2098 | /* only copy the pcm sample when we have up-sampled enough PCM */ |
| 2099 | if(btif_media_cb.media_feeding_state.pcm.aa_feed_residue >= bytes_needed) |
| 2100 | { |
| 2101 | /* Copy the output pcm samples in SBC encoding buffer */ |
| 2102 | memcpy((UINT8 *)btif_media_cb.encoder.as16PcmBuffer, |
| 2103 | (UINT8 *)up_sampled_buffer, |
| 2104 | bytes_needed); |
| 2105 | /* update the residue */ |
| 2106 | btif_media_cb.media_feeding_state.pcm.aa_feed_residue -= bytes_needed; |
| 2107 | |
| 2108 | if (btif_media_cb.media_feeding_state.pcm.aa_feed_residue != 0) |
| 2109 | { |
| 2110 | memcpy((UINT8 *)up_sampled_buffer, |
| 2111 | (UINT8 *)up_sampled_buffer + bytes_needed, |
| 2112 | btif_media_cb.media_feeding_state.pcm.aa_feed_residue); |
| 2113 | } |
| 2114 | return TRUE; |
| 2115 | } |
| 2116 | |
| 2117 | #if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) |
| 2118 | APPL_TRACE_DEBUG3("btif_media_aa_read_feeding residue:%d, dst_size_used %d, bytes_needed %d", |
| 2119 | btif_media_cb.media_feeding_state.pcm.aa_feed_residue, dst_size_used, bytes_needed); |
| 2120 | #endif |
| 2121 | |
| 2122 | return FALSE; |
| 2123 | } |
| 2124 | |
| 2125 | /******************************************************************************* |
| 2126 | ** |
| 2127 | ** Function btif_media_aa_prep_sbc_2_send |
| 2128 | ** |
| 2129 | ** Description |
| 2130 | ** |
| 2131 | ** Returns void |
| 2132 | ** |
| 2133 | *******************************************************************************/ |
| 2134 | static void btif_media_aa_prep_sbc_2_send(UINT8 nb_frame) |
| 2135 | { |
| 2136 | BT_HDR * p_buf; |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 2137 | UINT16 blocm_x_subband = btif_media_cb.encoder.s16NumOfSubBands * |
| 2138 | btif_media_cb.encoder.s16NumOfBlocks; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2139 | |
| 2140 | #if (defined(DEBUG_MEDIA_AV_FLOW) && (DEBUG_MEDIA_AV_FLOW == TRUE)) |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 2141 | APPL_TRACE_DEBUG2("btif_media_aa_prep_sbc_2_send nb_frame %d, TxAaQ %d", |
| 2142 | nb_frame, btif_media_cb.TxAaQ.count); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2143 | #endif |
| 2144 | while (nb_frame) |
| 2145 | { |
| 2146 | if (NULL == (p_buf = GKI_getpoolbuf(BTIF_MEDIA_AA_POOL_ID))) |
| 2147 | { |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 2148 | APPL_TRACE_ERROR1 ("ERROR btif_media_aa_prep_sbc_2_send no buffer TxCnt %d ", |
| 2149 | btif_media_cb.TxAaQ.count); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2150 | return; |
| 2151 | } |
| 2152 | |
| 2153 | /* Init buffer */ |
| 2154 | p_buf->offset = BTIF_MEDIA_AA_SBC_OFFSET; |
| 2155 | p_buf->len = 0; |
| 2156 | p_buf->layer_specific = 0; |
| 2157 | |
| 2158 | do |
| 2159 | { |
| 2160 | /* Write @ of allocated buffer in encoder.pu8Packet */ |
| 2161 | btif_media_cb.encoder.pu8Packet = (UINT8 *) (p_buf + 1) + p_buf->offset + p_buf->len; |
| 2162 | /* Fill allocated buffer with 0 */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2163 | memset(btif_media_cb.encoder.as16PcmBuffer, 0, blocm_x_subband |
| 2164 | * btif_media_cb.encoder.s16NumOfChannels); |
| 2165 | |
| 2166 | /* Read PCM data and upsample them if needed */ |
| 2167 | if (btif_media_aa_read_feeding(UIPC_CH_ID_AV_AUDIO)) |
| 2168 | { |
| 2169 | /* SBC encode and descramble frame */ |
| 2170 | SBC_Encoder(&(btif_media_cb.encoder)); |
| 2171 | A2D_SbcChkFrInit(btif_media_cb.encoder.pu8Packet); |
| 2172 | A2D_SbcDescramble(btif_media_cb.encoder.pu8Packet, btif_media_cb.encoder.u16PacketLength); |
| 2173 | /* Update SBC frame length */ |
| 2174 | p_buf->len += btif_media_cb.encoder.u16PacketLength; |
| 2175 | nb_frame--; |
| 2176 | p_buf->layer_specific++; |
| 2177 | } |
| 2178 | else |
| 2179 | { |
Mattias Agren | b8ceaa4 | 2013-04-05 17:27:27 +0200 | [diff] [blame] | 2180 | APPL_TRACE_WARNING2("btif_media_aa_prep_sbc_2_send underflow %d, %d", |
| 2181 | nb_frame, btif_media_cb.media_feeding_state.pcm.aa_feed_residue); |
| 2182 | btif_media_cb.media_feeding_state.pcm.counter += nb_frame * |
| 2183 | btif_media_cb.encoder.s16NumOfSubBands * |
| 2184 | btif_media_cb.encoder.s16NumOfBlocks * |
| 2185 | btif_media_cb.media_feeding.cfg.pcm.num_channel * |
| 2186 | btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2187 | /* no more pcm to read */ |
| 2188 | nb_frame = 0; |
| 2189 | |
| 2190 | /* break read loop if timer was stopped (media task stopped) */ |
| 2191 | if ( btif_media_cb.is_tx_timer == FALSE ) |
Hemant Gupta | e7c4f99 | 2013-09-05 19:42:50 +0530 | [diff] [blame^] | 2192 | { |
| 2193 | GKI_freebuf(p_buf); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2194 | return; |
Hemant Gupta | e7c4f99 | 2013-09-05 19:42:50 +0530 | [diff] [blame^] | 2195 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2196 | } |
| 2197 | |
| 2198 | } while (((p_buf->len + btif_media_cb.encoder.u16PacketLength) < btif_media_cb.TxAaMtuSize) |
| 2199 | && (p_buf->layer_specific < 0x0F) && nb_frame); |
| 2200 | |
Ganesh Ganapathi Batta | 45f5f90 | 2013-02-08 11:02:57 -0800 | [diff] [blame] | 2201 | if(p_buf->len) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2202 | { |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 2203 | /* timestamp of the media packet header represent the TS of the first SBC frame |
| 2204 | i.e the timestamp before including this frame */ |
Ganesh Ganapathi Batta | 45f5f90 | 2013-02-08 11:02:57 -0800 | [diff] [blame] | 2205 | *((UINT32 *) (p_buf + 1)) = btif_media_cb.timestamp; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2206 | |
Mattias Agren | 5fd74f0 | 2013-04-05 19:04:35 +0200 | [diff] [blame] | 2207 | btif_media_cb.timestamp += p_buf->layer_specific * blocm_x_subband; |
| 2208 | |
Ganesh Ganapathi Batta | 45f5f90 | 2013-02-08 11:02:57 -0800 | [diff] [blame] | 2209 | VERBOSE("TX QUEUE NOW %d", btif_media_cb.TxAaQ.count); |
| 2210 | |
| 2211 | if (btif_media_cb.tx_flush) |
| 2212 | { |
| 2213 | APPL_TRACE_DEBUG0("### tx suspended, discarded frame ###"); |
| 2214 | |
| 2215 | if (btif_media_cb.TxAaQ.count > 0) |
| 2216 | btif_media_flush_q(&(btif_media_cb.TxAaQ)); |
| 2217 | |
| 2218 | GKI_freebuf(p_buf); |
| 2219 | return; |
| 2220 | } |
| 2221 | |
| 2222 | /* Enqueue the encoded SBC frame in AA Tx Queue */ |
| 2223 | GKI_enqueue(&(btif_media_cb.TxAaQ), p_buf); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2224 | } |
Ganesh Ganapathi Batta | 45f5f90 | 2013-02-08 11:02:57 -0800 | [diff] [blame] | 2225 | else |
| 2226 | { |
| 2227 | GKI_freebuf(p_buf); |
| 2228 | } |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 2229 | |
| 2230 | if (btif_media_cb.TxAaQ.count >= MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ) { |
| 2231 | UINT32 reset_rate_bytes = btif_media_cb.media_feeding_state.pcm.bytes_per_tick * |
| 2232 | (RESET_RATE_COUNTER_THRESHOLD_MS / BTIF_MEDIA_TIME_TICK); |
| 2233 | btif_media_cb.media_feeding_state.pcm.overflow = TRUE; |
| 2234 | btif_media_cb.media_feeding_state.pcm.counter += nb_frame * |
| 2235 | btif_media_cb.encoder.s16NumOfSubBands * |
| 2236 | btif_media_cb.encoder.s16NumOfBlocks * |
| 2237 | btif_media_cb.media_feeding.cfg.pcm.num_channel * |
| 2238 | btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8; |
| 2239 | |
| 2240 | btif_media_cb.media_feeding_state.pcm.overflow_count++; |
| 2241 | if (btif_media_cb.media_feeding_state.pcm.counter > |
| 2242 | btif_media_cb.media_feeding_state.pcm.max_counter_enter) { |
| 2243 | btif_media_cb.media_feeding_state.pcm.max_counter_enter = |
| 2244 | btif_media_cb.media_feeding_state.pcm.counter; |
| 2245 | } |
| 2246 | |
| 2247 | if (btif_media_cb.media_feeding_state.pcm.counter > reset_rate_bytes) { |
| 2248 | btif_media_cb.media_feeding_state.pcm.counter = 0; |
| 2249 | APPL_TRACE_WARNING0("btif_media_aa_prep_sbc_2_send:reset rate counter"); |
| 2250 | } |
| 2251 | |
| 2252 | /* no more pcm to read */ |
| 2253 | nb_frame = 0; |
| 2254 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2255 | } |
| 2256 | } |
| 2257 | |
| 2258 | |
| 2259 | /******************************************************************************* |
| 2260 | ** |
| 2261 | ** Function btif_media_aa_prep_2_send |
| 2262 | ** |
| 2263 | ** Description |
| 2264 | ** |
| 2265 | ** Returns void |
| 2266 | ** |
| 2267 | *******************************************************************************/ |
| 2268 | |
| 2269 | static void btif_media_aa_prep_2_send(UINT8 nb_frame) |
| 2270 | { |
| 2271 | VERBOSE("btif_media_aa_prep_2_send : %d frames (queue %d)", nb_frame, |
| 2272 | btif_media_cb.TxAaQ.count); |
| 2273 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2274 | switch (btif_media_cb.TxTranscoding) |
| 2275 | { |
| 2276 | case BTIF_MEDIA_TRSCD_PCM_2_SBC: |
| 2277 | btif_media_aa_prep_sbc_2_send(nb_frame); |
| 2278 | break; |
| 2279 | |
| 2280 | |
| 2281 | default: |
| 2282 | APPL_TRACE_ERROR1("ERROR btif_media_aa_prep_2_send unsupported transcoding format 0x%x",btif_media_cb.TxTranscoding); |
| 2283 | break; |
| 2284 | } |
| 2285 | } |
| 2286 | |
| 2287 | /******************************************************************************* |
| 2288 | ** |
| 2289 | ** Function btif_media_send_aa_frame |
| 2290 | ** |
| 2291 | ** Description |
| 2292 | ** |
| 2293 | ** Returns void |
| 2294 | ** |
| 2295 | *******************************************************************************/ |
| 2296 | static void btif_media_send_aa_frame(void) |
| 2297 | { |
| 2298 | UINT8 nb_frame_2_send; |
| 2299 | |
| 2300 | /* get the number of frame to send */ |
| 2301 | nb_frame_2_send = btif_get_num_aa_frame(); |
| 2302 | |
Zhihai Xu | 4aebca4 | 2013-09-19 11:30:44 -0700 | [diff] [blame] | 2303 | if (nb_frame_2_send != 0) { |
| 2304 | /* format and Q buffer to send */ |
| 2305 | btif_media_aa_prep_2_send(nb_frame_2_send); |
| 2306 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2307 | |
| 2308 | /* send it */ |
| 2309 | VERBOSE("btif_media_send_aa_frame : send %d frames", nb_frame_2_send); |
| 2310 | bta_av_ci_src_data_ready(BTA_AV_CHNL_AUDIO); |
| 2311 | } |
| 2312 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 2313 | #endif /* BTA_AV_INCLUDED == TRUE */ |
| 2314 | |
| 2315 | /******************************************************************************* |
| 2316 | ** |
| 2317 | ** Function dump_codec_info |
| 2318 | ** |
| 2319 | ** Description Decode and display codec_info (for debug) |
| 2320 | ** |
| 2321 | ** Returns void |
| 2322 | ** |
| 2323 | *******************************************************************************/ |
| 2324 | void dump_codec_info(unsigned char *p_codec) |
| 2325 | { |
| 2326 | tA2D_STATUS a2d_status; |
| 2327 | tA2D_SBC_CIE sbc_cie; |
| 2328 | |
| 2329 | a2d_status = A2D_ParsSbcInfo(&sbc_cie, p_codec, FALSE); |
| 2330 | if (a2d_status != A2D_SUCCESS) |
| 2331 | { |
| 2332 | APPL_TRACE_ERROR1("ERROR dump_codec_info A2D_ParsSbcInfo fail:%d", a2d_status); |
| 2333 | return; |
| 2334 | } |
| 2335 | |
| 2336 | APPL_TRACE_DEBUG0("dump_codec_info"); |
| 2337 | |
| 2338 | if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_16) |
| 2339 | { APPL_TRACE_DEBUG1("\tsamp_freq:%d (16000)", sbc_cie.samp_freq);} |
| 2340 | else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_32) |
| 2341 | { APPL_TRACE_DEBUG1("\tsamp_freq:%d (32000)", sbc_cie.samp_freq);} |
| 2342 | else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_44) |
| 2343 | { APPL_TRACE_DEBUG1("\tsamp_freq:%d (44.100)", sbc_cie.samp_freq);} |
| 2344 | else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_48) |
| 2345 | { APPL_TRACE_DEBUG1("\tsamp_freq:%d (48000)", sbc_cie.samp_freq);} |
| 2346 | else |
| 2347 | { APPL_TRACE_DEBUG1("\tBAD samp_freq:%d", sbc_cie.samp_freq);} |
| 2348 | |
| 2349 | if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_MONO) |
| 2350 | { APPL_TRACE_DEBUG1("\tch_mode:%d (Mono)", sbc_cie.ch_mode);} |
| 2351 | else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_DUAL) |
| 2352 | { APPL_TRACE_DEBUG1("\tch_mode:%d (Dual)", sbc_cie.ch_mode);} |
| 2353 | else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_STEREO) |
| 2354 | { APPL_TRACE_DEBUG1("\tch_mode:%d (Stereo)", sbc_cie.ch_mode);} |
| 2355 | else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_JOINT) |
| 2356 | { APPL_TRACE_DEBUG1("\tch_mode:%d (Joint)", sbc_cie.ch_mode);} |
| 2357 | else |
| 2358 | { APPL_TRACE_DEBUG1("\tBAD ch_mode:%d", sbc_cie.ch_mode);} |
| 2359 | |
| 2360 | if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_4) |
| 2361 | { APPL_TRACE_DEBUG1("\tblock_len:%d (4)", sbc_cie.block_len);} |
| 2362 | else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_8) |
| 2363 | { APPL_TRACE_DEBUG1("\tblock_len:%d (8)", sbc_cie.block_len);} |
| 2364 | else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_12) |
| 2365 | { APPL_TRACE_DEBUG1("\tblock_len:%d (12)", sbc_cie.block_len);} |
| 2366 | else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_16) |
| 2367 | { APPL_TRACE_DEBUG1("\tblock_len:%d (16)", sbc_cie.block_len);} |
| 2368 | else |
| 2369 | { APPL_TRACE_DEBUG1("\tBAD block_len:%d", sbc_cie.block_len);} |
| 2370 | |
| 2371 | if (sbc_cie.num_subbands == A2D_SBC_IE_SUBBAND_4) |
| 2372 | { APPL_TRACE_DEBUG1("\tnum_subbands:%d (4)", sbc_cie.num_subbands);} |
| 2373 | else if (sbc_cie.num_subbands == A2D_SBC_IE_SUBBAND_8) |
| 2374 | { APPL_TRACE_DEBUG1("\tnum_subbands:%d (8)", sbc_cie.num_subbands);} |
| 2375 | else |
| 2376 | { APPL_TRACE_DEBUG1("\tBAD num_subbands:%d", sbc_cie.num_subbands);} |
| 2377 | |
| 2378 | if (sbc_cie.alloc_mthd == A2D_SBC_IE_ALLOC_MD_S) |
| 2379 | { APPL_TRACE_DEBUG1("\talloc_mthd:%d (SNR)", sbc_cie.alloc_mthd);} |
| 2380 | else if (sbc_cie.alloc_mthd == A2D_SBC_IE_ALLOC_MD_L) |
| 2381 | { APPL_TRACE_DEBUG1("\talloc_mthd:%d (Loundess)", sbc_cie.alloc_mthd);} |
| 2382 | else |
| 2383 | { APPL_TRACE_DEBUG1("\tBAD alloc_mthd:%d", sbc_cie.alloc_mthd);} |
| 2384 | |
| 2385 | APPL_TRACE_DEBUG2("\tBit pool Min:%d Max:%d", sbc_cie.min_bitpool, sbc_cie.max_bitpool); |
| 2386 | |
| 2387 | } |