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OVMS3-idf/examples/09_a2dp/components/bluedroid_demos/btif/btif_media_task.c
wangmengyang 252353d1c6 component/bt: A2DP clean-up: 
1. remove UIPC code;
2. remove SBC encoder part
2016-12-06 17:07:32 +08:00

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/******************************************************************************
*
* Copyright (C) 2009-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
**
** Name: btif_media_task.c
**
** Description: This is the multimedia module for the BTIF system. It
** contains task implementations AV, HS and HF profiles
** audio & video processing
**
******************************************************************************/
#define LOG_TAG "bt_btif_media"
#include "bt_trace.h"
#include <string.h>
#include <stdio.h>
#include <stdint.h>
#include "bt_target.h"
#include "fixed_queue.h"
#include "gki.h"
#include "bta_api.h"
#include "btu.h"
#include "bta_sys.h"
#include "bta_sys_int.h"
#include "bta_av_api.h"
#include "a2d_api.h"
#include "a2d_sbc.h"
#include "a2d_int.h"
#include "bta_av_sbc.h"
#include "bta_av_ci.h"
#include "l2c_api.h"
#include "btif_av_co.h"
#include "btif_media.h"
#include "alarm.h"
#include "bt_trace.h"
#include "thread.h"
#include "bt_defs.h"
#include "btif_av.h"
#include "btif_sm.h"
#include "btif_util.h"
#if (BTA_AV_SINK_INCLUDED == TRUE)
#include "oi_codec_sbc.h"
#include "oi_status.h"
#endif
#include "stdio.h"
#include "btif_media.h"
#include "allocator.h"
#include "bt_utils.h"
#include "esp_a2dp_api.h"
#if (BTA_AV_SINK_INCLUDED == TRUE)
OI_CODEC_SBC_DECODER_CONTEXT context;
OI_UINT32 contextData[CODEC_DATA_WORDS(2, SBC_CODEC_FAST_FILTER_BUFFERS)];
OI_INT16 pcmData[15 * SBC_MAX_SAMPLES_PER_FRAME * SBC_MAX_CHANNELS];
#endif
/*****************************************************************************
** Constants
*****************************************************************************/
#ifndef AUDIO_CHANNEL_OUT_MONO
#define AUDIO_CHANNEL_OUT_MONO 0x01
#endif
#ifndef AUDIO_CHANNEL_OUT_STEREO
#define AUDIO_CHANNEL_OUT_STEREO 0x03
#endif
/* BTIF media cmd event definition : BTIF_MEDIA_TASK_CMD */
enum {
BTIF_MEDIA_START_AA_TX = 1,
BTIF_MEDIA_STOP_AA_TX,
BTIF_MEDIA_AA_RX_RDY,
BTIF_MEDIA_UIPC_RX_RDY,
BTIF_MEDIA_SBC_ENC_INIT,
BTIF_MEDIA_SBC_ENC_UPDATE,
BTIF_MEDIA_SBC_DEC_INIT,
BTIF_MEDIA_VIDEO_DEC_INIT,
BTIF_MEDIA_FLUSH_AA_TX,
BTIF_MEDIA_FLUSH_AA_RX,
BTIF_MEDIA_AUDIO_FEEDING_INIT,
BTIF_MEDIA_AUDIO_RECEIVING_INIT,
BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE,
BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK
};
enum {
MEDIA_TASK_STATE_OFF = 0,
MEDIA_TASK_STATE_ON = 1,
MEDIA_TASK_STATE_SHUTTING_DOWN = 2
};
enum {
SIG_MEDIA_TASK_INIT = 0xf0,
SIG_MEDIA_TASK_CLEAN_UP = 0xf1,
SIG_MEDIA_TASK_AVK_ALARM_TO = 0xf2,
SIG_MEDIA_TASK_AA_ALARM_TO = 0xf3,
SIG_MEDIA_TASK_CMD_READY = 0xf4
};
/* Macro to multiply the media task tick */
#ifndef BTIF_MEDIA_NUM_TICK
#define BTIF_MEDIA_NUM_TICK 1
#endif
/* Media task tick in milliseconds, must be set to multiple of
(1000/TICKS_PER_SEC) (10) */
#define BTIF_MEDIA_TIME_TICK (20 * BTIF_MEDIA_NUM_TICK)
#define A2DP_DATA_READ_POLL_MS (BTIF_MEDIA_TIME_TICK / 2)
#define BTIF_SINK_MEDIA_TIME_TICK (20 * BTIF_MEDIA_NUM_TICK)
/* buffer pool */
#define BTIF_MEDIA_AA_POOL_ID GKI_POOL_ID_3
#define BTIF_MEDIA_AA_BUF_SIZE GKI_BUF3_SIZE
/* offset */
#if (BTA_AV_CO_CP_SCMS_T == TRUE)
#define BTIF_MEDIA_AA_SBC_OFFSET (AVDT_MEDIA_OFFSET + BTA_AV_SBC_HDR_SIZE + 1)
#else
#define BTIF_MEDIA_AA_SBC_OFFSET (AVDT_MEDIA_OFFSET + BTA_AV_SBC_HDR_SIZE)
#endif
/* Define the bitrate step when trying to match bitpool value */
#ifndef BTIF_MEDIA_BITRATE_STEP
#define BTIF_MEDIA_BITRATE_STEP 5
#endif
/* Middle quality quality setting @ 44.1 khz */
#define DEFAULT_SBC_BITRATE 328
#ifndef BTIF_A2DP_NON_EDR_MAX_RATE
#define BTIF_A2DP_NON_EDR_MAX_RATE 229
#endif
#define USEC_PER_SEC 1000000L
#define TPUT_STATS_INTERVAL_US (3000*1000)
/*
* CONGESTION COMPENSATION CTRL ::
*
* Thus setting controls how many buffers we will hold in media task
* during temp link congestion. Together with the stack buffer queues
* it controls much temporary a2dp link congestion we can
* compensate for. It however also depends on the default run level of sinks
* jitterbuffers. Depending on type of sink this would vary.
* Ideally the (SRC) max tx buffer capacity should equal the sinks
* jitterbuffer runlevel including any intermediate buffers on the way
* towards the sinks codec.
*/
/* fixme -- define this in pcm time instead of buffer count */
/* The typical runlevel of the tx queue size is ~1 buffer
but due to link flow control or thread preemption in lower
layers we might need to temporarily buffer up data */
/* 18 frames is equivalent to 6.89*18*2.9 ~= 360 ms @ 44.1 khz, 20 ms mediatick */
#define MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ 18
#ifndef MAX_PCM_FRAME_NUM_PER_TICK
#define MAX_PCM_FRAME_NUM_PER_TICK 14
#endif
/* In case of A2DP SINK, we will delay start by 5 AVDTP Packets*/
#define MAX_A2DP_DELAYED_START_FRAME_COUNT 5
#define PACKET_PLAYED_PER_TICK_48 8
#define PACKET_PLAYED_PER_TICK_44 7
#define PACKET_PLAYED_PER_TICK_32 5
#define PACKET_PLAYED_PER_TICK_16 3
typedef struct {
UINT16 num_frames_to_be_processed;
UINT16 len;
UINT16 offset;
UINT16 layer_specific;
} tBT_SBC_HDR;
typedef struct {
UINT32 aa_frame_counter;
INT32 aa_feed_counter;
INT32 aa_feed_residue;
UINT32 counter;
UINT32 bytes_per_tick; /* pcm bytes read each media task tick */
} tBTIF_AV_MEDIA_FEEDINGS_PCM_STATE;
typedef union {
tBTIF_AV_MEDIA_FEEDINGS_PCM_STATE pcm;
} tBTIF_AV_MEDIA_FEEDINGS_STATE;
typedef struct {
#if (BTA_AV_INCLUDED == TRUE)
BUFFER_Q RxSbcQ;
BOOLEAN is_tx_timer;
BOOLEAN is_rx_timer;
UINT8 busy_level;
void *av_sm_hdl;
UINT8 a2dp_cmd_pending; /* we can have max one command pending */
BOOLEAN rx_flush; /* discards any incoming data when true */
UINT8 peer_sep;
BOOLEAN data_channel_open;
UINT8 frames_to_process;
UINT32 sample_rate;
UINT8 channel_count;
osi_alarm_t *decode_alarm;
#endif
} tBTIF_MEDIA_CB;
typedef struct {
long long rx;
long long rx_tot;
long long tx;
long long tx_tot;
long long ts_prev_us;
} t_stat;
#if (BTA_AV_SINK_INCLUDED == TRUE)
extern OI_STATUS OI_CODEC_SBC_DecodeFrame(OI_CODEC_SBC_DECODER_CONTEXT *context,
const OI_BYTE **frameData,
unsigned long *frameBytes,
OI_INT16 *pcmData,
unsigned long *pcmBytes);
extern OI_STATUS OI_CODEC_SBC_DecoderReset(OI_CODEC_SBC_DECODER_CONTEXT *context,
unsigned long *decoderData,
unsigned long decoderDataBytes,
OI_UINT8 maxChannels,
OI_UINT8 pcmStride,
OI_BOOL enhanced);
#endif
static void btif_media_flush_q(BUFFER_Q *p_q);
static void btif_media_task_aa_handle_stop_decoding(void );
static void btif_media_task_aa_rx_flush(void);
static const char *dump_media_event(UINT16 event);
static void btif_media_thread_handle_cmd(fixed_queue_t *queue);
/* Handle incoming media packets A2DP SINK streaming*/
#if (BTA_AV_SINK_INCLUDED == TRUE)
static void btif_media_task_handle_inc_media(tBT_SBC_HDR *p_msg);
#endif
#if (BTA_AV_INCLUDED == TRUE)
#if (BTA_AV_SINK_INCLUDED == TRUE)
static void btif_media_task_aa_handle_decoder_reset(BT_HDR *p_msg);
static void btif_media_task_aa_handle_clear_track(void);
#endif
static void btif_media_task_aa_handle_start_decoding(void);
#endif
BOOLEAN btif_media_task_clear_track(void);
static void btif_media_task_handler(void *arg);
static void btif_media_task_avk_handle_timer(UNUSED_ATTR void *context);
static void btif_media_thread_init(UNUSED_ATTR void *context);
static void btif_media_thread_cleanup(UNUSED_ATTR void *context);
extern BOOLEAN btif_hf_is_call_idle();
static tBTIF_MEDIA_CB btif_media_cb;
static int media_task_running = MEDIA_TASK_STATE_OFF;
static fixed_queue_t *btif_media_cmd_msg_queue = NULL;
static xTaskHandle xBtifMediaTaskHandle = NULL;
static QueueHandle_t xBtifMediaQueue = NULL;
static esp_a2d_data_cb_t bt_av_sink_data_callback = NULL;
esp_err_t esp_a2d_register_data_callback(esp_a2d_data_cb_t cb)
{
// TODO: need protection against race
bt_av_sink_data_callback = cb;
}
// TODO: need protection against race
#define BTIF_A2D_DATA_CB_TO_APP(data, len) do { \
if (bt_av_sink_data_callback) { \
bt_av_sink_data_callback(data, len); \
} \
} while (0)
/*****************************************************************************
** temporary hacked functions. TODO: port these functions or remove them?
*****************************************************************************/
BOOLEAN btif_hf_is_call_idle(void)
{
return FALSE;
}
/*****************************************************************************
** Misc helper functions
*****************************************************************************/
UNUSED_ATTR static const char *dump_media_event(UINT16 event)
{
switch (event) {
CASE_RETURN_STR(BTIF_MEDIA_START_AA_TX)
CASE_RETURN_STR(BTIF_MEDIA_STOP_AA_TX)
CASE_RETURN_STR(BTIF_MEDIA_AA_RX_RDY)
CASE_RETURN_STR(BTIF_MEDIA_UIPC_RX_RDY)
CASE_RETURN_STR(BTIF_MEDIA_SBC_ENC_INIT)
CASE_RETURN_STR(BTIF_MEDIA_SBC_ENC_UPDATE)
CASE_RETURN_STR(BTIF_MEDIA_SBC_DEC_INIT)
CASE_RETURN_STR(BTIF_MEDIA_VIDEO_DEC_INIT)
CASE_RETURN_STR(BTIF_MEDIA_FLUSH_AA_TX)
CASE_RETURN_STR(BTIF_MEDIA_FLUSH_AA_RX)
CASE_RETURN_STR(BTIF_MEDIA_AUDIO_FEEDING_INIT)
CASE_RETURN_STR(BTIF_MEDIA_AUDIO_RECEIVING_INIT)
CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE)
CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK)
default:
return "UNKNOWN MEDIA EVENT";
}
}
/*****************************************************************************
** A2DP CTRL PATH
*****************************************************************************/
#if 0
// TODO: consider the necessity to add an API based on this function
static void btif_audiopath_detached(void)
{
APPL_TRACE_EVENT("## AUDIO PATH DETACHED ##");
/* send stop request only if we are actively streaming and haven't received
a stop request. Potentially audioflinger detached abnormally */
if (btif_media_cb.is_tx_timer) {
/* post stop event and wait for audio path to stop */
btif_dispatch_sm_event(BTIF_AV_STOP_STREAM_REQ_EVT, NULL, 0);
}
}
#endif
/*****************************************************************************
** BTIF ADAPTATION
*****************************************************************************/
static void btif_media_task_post(uint32_t sig)
{
BtTaskEvt_t *evt = (BtTaskEvt_t *)osi_malloc(sizeof(BtTaskEvt_t));
if (evt == NULL) {
return;
}
evt->sig = sig;
evt->par = 0;
if (xQueueSend(xBtifMediaQueue, &evt, 10 / portTICK_RATE_MS) != pdTRUE) {
APPL_TRACE_ERROR("xBtifMediaQueue failed\n");
}
}
static void btif_media_task_handler(void *arg)
{
BtTaskEvt_t *e;
for (;;) {
if (pdTRUE == xQueueReceive(xBtifMediaQueue, &e, (portTickType)portMAX_DELAY)) {
// LOG_ERROR("med evt %d\n", e->sig);
switch (e->sig) {
case SIG_MEDIA_TASK_AVK_ALARM_TO:
btif_media_task_avk_handle_timer(NULL);
break;
case SIG_MEDIA_TASK_CMD_READY:
fixed_queue_process(btif_media_cmd_msg_queue);
break;
case SIG_MEDIA_TASK_INIT:
btif_media_thread_init(NULL);
break;
case SIG_MEDIA_TASK_CLEAN_UP:
btif_media_thread_cleanup(NULL);
break;
default:
APPL_TRACE_ERROR("media task unhandled evt: 0x%x\n", e->sig);
}
}
osi_free(e);
}
}
bool btif_a2dp_start_media_task(void)
{
if (media_task_running != MEDIA_TASK_STATE_OFF) {
APPL_TRACE_ERROR("warning : media task already running");
return false;
}
APPL_TRACE_EVENT("## A2DP START MEDIA THREAD ##");
btif_media_cmd_msg_queue = fixed_queue_new(SIZE_MAX);
if (btif_media_cmd_msg_queue == NULL) {
goto error_exit;
}
xBtifMediaQueue = xQueueCreate(60, sizeof(void *));
if (xBtifMediaQueue == 0) {
goto error_exit;
}
xTaskCreate(btif_media_task_handler, "BtifMediaT\n", 2048, NULL, configMAX_PRIORITIES - 1, &xBtifMediaTaskHandle);
if (xBtifMediaTaskHandle == NULL) {
goto error_exit;
}
fixed_queue_register_dequeue(btif_media_cmd_msg_queue, btif_media_thread_handle_cmd);
btif_media_task_post(SIG_MEDIA_TASK_INIT);
APPL_TRACE_EVENT("## A2DP MEDIA THREAD STARTED ##\n");
return true;
error_exit:;
APPL_TRACE_ERROR("%s unable to start up media thread\n", __func__);
if (xBtifMediaTaskHandle != NULL) {
vTaskDelete(xBtifMediaTaskHandle);
xBtifMediaTaskHandle = NULL;
}
if (xBtifMediaQueue != 0) {
vQueueDelete(xBtifMediaQueue);
xBtifMediaQueue = 0;
}
fixed_queue_free(btif_media_cmd_msg_queue, NULL);
btif_media_cmd_msg_queue = NULL;
return false;
}
void btif_a2dp_stop_media_task(void)
{
APPL_TRACE_EVENT("## A2DP STOP MEDIA THREAD ##\n");
// Exit thread
btif_media_task_post(SIG_MEDIA_TASK_CLEAN_UP);
// TODO: wait until CLEAN up is done, then do task delete
vTaskDelete(xBtifMediaTaskHandle);
xBtifMediaTaskHandle = NULL;
vQueueDelete(xBtifMediaQueue);
xBtifMediaQueue = NULL;
fixed_queue_free(btif_media_cmd_msg_queue, NULL);
btif_media_cmd_msg_queue = NULL;
}
/*****************************************************************************
**
** Function btif_a2dp_on_init
**
** Description
**
** Returns
**
*******************************************************************************/
void btif_a2dp_on_init(void)
{
//tput_mon(1, 0, 1);
}
/*****************************************************************************
**
** Function btif_a2dp_setup_codec
**
** Description
**
** Returns
**
*******************************************************************************/
void btif_a2dp_setup_codec(void)
{
tBTIF_AV_MEDIA_FEEDINGS media_feeding;
tBTIF_STATUS status;
APPL_TRACE_EVENT("## A2DP SETUP CODEC ##\n");
GKI_disable();
/* for now hardcode 44.1 khz 16 bit stereo PCM format */
media_feeding.cfg.pcm.sampling_freq = 44100;
media_feeding.cfg.pcm.bit_per_sample = 16;
media_feeding.cfg.pcm.num_channel = 2;
media_feeding.format = BTIF_AV_CODEC_PCM;
bta_av_co_audio_set_codec(&media_feeding, &status);
GKI_enable();
}
/*****************************************************************************
**
** Function btif_a2dp_on_idle
**
** Description
**
** Returns
**
*******************************************************************************/
void btif_a2dp_on_idle(void)
{
APPL_TRACE_EVENT("## ON A2DP IDLE ##\n");
bta_av_co_init();
#if (BTA_AV_SINK_INCLUDED == TRUE)
if (btif_media_cb.peer_sep == AVDT_TSEP_SRC) {
btif_media_cb.rx_flush = TRUE;
btif_media_task_aa_rx_flush_req();
btif_media_task_aa_handle_stop_decoding();
btif_media_task_clear_track();
APPL_TRACE_DEBUG("Stopped BT track");
}
#endif
}
/*******************************************************************************
**
** Function btif_media_task_clear_track
**
** Description
**
** Returns TRUE is success
**
*******************************************************************************/
BOOLEAN btif_media_task_clear_track(void)
{
BT_HDR *p_buf;
if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) {
return FALSE;
}
p_buf->event = BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK;
fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
btif_media_task_post(SIG_MEDIA_TASK_CMD_READY);
return TRUE;
}
/*****************************************************************************
**
** Function btif_reset_decoder
**
** Description
**
** Returns
**
*******************************************************************************/
void btif_reset_decoder(UINT8 *p_av)
{
APPL_TRACE_EVENT("btif_reset_decoder");
APPL_TRACE_DEBUG("btif_reset_decoder p_codec_info[%x:%x:%x:%x:%x:%x]\n",
p_av[1], p_av[2], p_av[3],
p_av[4], p_av[5], p_av[6]);
tBTIF_MEDIA_SINK_CFG_UPDATE *p_buf;
if (NULL == (p_buf = GKI_getbuf(sizeof(tBTIF_MEDIA_SINK_CFG_UPDATE)))) {
APPL_TRACE_ERROR("btif_reset_decoder No Buffer ");
return;
}
memcpy(p_buf->codec_info, p_av, AVDT_CODEC_SIZE);
p_buf->hdr.event = BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE;
fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
btif_media_task_post(SIG_MEDIA_TASK_CMD_READY);
}
/*****************************************************************************
**
** Function btif_a2dp_on_stopped
**
** Description
**
** Returns
**
*******************************************************************************/
void btif_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av)
{
APPL_TRACE_EVENT("## ON A2DP STOPPED ##\n");
if (btif_media_cb.peer_sep == AVDT_TSEP_SRC) { /* Handling for A2DP SINK cases*/
btif_media_cb.rx_flush = TRUE;
btif_media_task_aa_rx_flush_req();
btif_media_task_aa_handle_stop_decoding();
btif_media_cb.data_channel_open = FALSE;
return;
}
}
/*****************************************************************************
**
** Function btif_a2dp_on_suspended
**
** Description
**
** Returns
**
*******************************************************************************/
void btif_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av)
{
APPL_TRACE_EVENT("## ON A2DP SUSPENDED ##\n");
if (btif_media_cb.peer_sep == AVDT_TSEP_SRC) {
btif_media_cb.rx_flush = TRUE;
btif_media_task_aa_rx_flush_req();
btif_media_task_aa_handle_stop_decoding();
return;
}
}
/* when true media task discards any rx frames */
void btif_a2dp_set_rx_flush(BOOLEAN enable)
{
APPL_TRACE_EVENT("## DROP RX %d ##\n", enable);
btif_media_cb.rx_flush = enable;
}
#if (BTA_AV_SINK_INCLUDED == TRUE)
static void btif_media_task_avk_handle_timer(UNUSED_ATTR void *context)
{
UINT8 count;
tBT_SBC_HDR *p_msg;
int num_sbc_frames;
int num_frames_to_process;
count = btif_media_cb.RxSbcQ._count;
if (0 == count) {
APPL_TRACE_DEBUG(" QUE EMPTY ");
} else {
if (btif_media_cb.rx_flush == TRUE) {
btif_media_flush_q(&(btif_media_cb.RxSbcQ));
return;
}
num_frames_to_process = btif_media_cb.frames_to_process;
APPL_TRACE_DEBUG(" Process Frames + ");
do {
p_msg = (tBT_SBC_HDR *)GKI_getfirst(&(btif_media_cb.RxSbcQ));
if (p_msg == NULL) {
return;
}
num_sbc_frames = p_msg->num_frames_to_be_processed; /* num of frames in Que Packets */
APPL_TRACE_DEBUG(" Frames left in topmost packet %d\n", num_sbc_frames);
APPL_TRACE_DEBUG(" Remaining frames to process in tick %d\n", num_frames_to_process);
APPL_TRACE_DEBUG(" Num of Packets in Que %d\n", btif_media_cb.RxSbcQ._count);
if ( num_sbc_frames > num_frames_to_process) { /* Que Packet has more frames*/
p_msg->num_frames_to_be_processed = num_frames_to_process;
btif_media_task_handle_inc_media(p_msg);
p_msg->num_frames_to_be_processed = num_sbc_frames - num_frames_to_process;
num_frames_to_process = 0;
break;
} else { /* Que packet has less frames */
btif_media_task_handle_inc_media(p_msg);
p_msg = (tBT_SBC_HDR *)GKI_dequeue(&(btif_media_cb.RxSbcQ));
if ( p_msg == NULL ) {
APPL_TRACE_ERROR("Insufficient data in que ");
break;
}
num_frames_to_process = num_frames_to_process - p_msg->num_frames_to_be_processed;
GKI_freebuf(p_msg);
}
} while (num_frames_to_process > 0);
APPL_TRACE_DEBUG(" Process Frames - ");
}
}
#else
static void btif_media_task_avk_handle_timer(UNUSED_ATTR void *context) {}
#endif
static void btif_media_thread_init(UNUSED_ATTR void *context)
{
memset(&btif_media_cb, 0, sizeof(btif_media_cb));
LOG_ERROR("med thread init\n");
#if (UIPC_INCLUDED == TRUE)
UIPC_Init(NULL);
#if (BTA_AV_INCLUDED == TRUE)
UIPC_Open(UIPC_CH_ID_AV_CTRL , btif_a2dp_ctrl_cb);
#endif ( BTA_AV_INCLUDED == TRUE)
#endif /* UIPC_INCLUDED == TRUE */
btif_media_cb.av_sm_hdl = btif_av_get_sm_handle();
raise_priority_a2dp(TASK_HIGH_MEDIA);
media_task_running = MEDIA_TASK_STATE_ON;
}
static void btif_media_thread_cleanup(UNUSED_ATTR void *context)
{
/* make sure no channels are restarted while shutting down */
media_task_running = MEDIA_TASK_STATE_SHUTTING_DOWN;
btif_media_cb.data_channel_open = FALSE;
/* Clear media task flag */
media_task_running = MEDIA_TASK_STATE_OFF;
}
/*******************************************************************************
**
** Function btif_media_flush_q
**
** Description
**
** Returns void
**
*******************************************************************************/
static void btif_media_flush_q(BUFFER_Q *p_q)
{
while (!GKI_queue_is_empty(p_q)) {
GKI_freebuf(GKI_dequeue(p_q));
}
}
static void btif_media_thread_handle_cmd(fixed_queue_t *queue)
{
BT_HDR *p_msg;
while (!fixed_queue_is_empty(queue)) {
p_msg = (BT_HDR *)fixed_queue_dequeue(queue);
LOG_VERBOSE("btif_media_thread_handle_cmd : %d %s\n", p_msg->event,
dump_media_event(p_msg->event));
switch (p_msg->event) {
#if (BTA_AV_INCLUDED == TRUE)
case BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE:
#if (BTA_AV_SINK_INCLUDED == TRUE)
btif_media_task_aa_handle_decoder_reset(p_msg);
#endif
break;
case BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK:
#if (BTA_AV_SINK_INCLUDED == TRUE)
btif_media_task_aa_handle_clear_track();
#endif
break;
case BTIF_MEDIA_FLUSH_AA_RX:
btif_media_task_aa_rx_flush();
break;
#endif
default:
APPL_TRACE_ERROR("ERROR in %s unknown event %d\n", __func__, p_msg->event);
}
GKI_freebuf(p_msg);
LOG_VERBOSE("%s: %s DONE\n", __func__, dump_media_event(p_msg->event));
}
}
#if (BTA_AV_SINK_INCLUDED == TRUE)
/*******************************************************************************
**
** Function btif_media_task_handle_inc_media
**
** Description
**
** Returns void
**
*******************************************************************************/
static void btif_media_task_handle_inc_media(tBT_SBC_HDR *p_msg)
{
UINT8 *sbc_start_frame = ((UINT8 *)(p_msg + 1) + p_msg->offset + 1);
int count;
UINT32 pcmBytes, availPcmBytes;
OI_INT16 *pcmDataPointer = pcmData; /*Will be overwritten on next packet receipt*/
OI_STATUS status;
int num_sbc_frames = p_msg->num_frames_to_be_processed;
UINT32 sbc_frame_len = p_msg->len - 1;
availPcmBytes = 2 * sizeof(pcmData);
if ((btif_media_cb.peer_sep == AVDT_TSEP_SNK) || (btif_media_cb.rx_flush)) {
APPL_TRACE_DEBUG(" State Changed happened in this tick ");
return;
}
// ignore data if no one is listening
if (!btif_media_cb.data_channel_open) {
return;
}
APPL_TRACE_DEBUG("Number of sbc frames %d, frame_len %d\n", num_sbc_frames, sbc_frame_len);
// LOG_ERROR("Number of sbc frames %d, frame_len %d\n", num_sbc_frames, sbc_frame_len);
for (count = 0; count < num_sbc_frames && sbc_frame_len != 0; count ++) {
pcmBytes = availPcmBytes;
status = OI_CODEC_SBC_DecodeFrame(&context, (const OI_BYTE **)&sbc_start_frame,
(OI_UINT32 *)&sbc_frame_len,
(OI_INT16 *)pcmDataPointer,
(OI_UINT32 *)&pcmBytes);
if (!OI_SUCCESS(status)) {
APPL_TRACE_ERROR("Decoding failure: %d\n", status);
break;
}
availPcmBytes -= pcmBytes;
pcmDataPointer += pcmBytes / 2;
p_msg->offset += (p_msg->len - 1) - sbc_frame_len;
p_msg->len = sbc_frame_len + 1;
}
// LOG_ERROR("pre-send: %d\n", availPcmBytes);
// UIPC_Send(UIPC_CH_ID_AV_AUDIO, 0, (UINT8 *)pcmData, (2 * sizeof(pcmData) - availPcmBytes));
BTIF_A2D_DATA_CB_TO_APP((uint8_t *)pcmData, (2 * sizeof(pcmData) - availPcmBytes));
}
#endif
#if (BTA_AV_INCLUDED == TRUE)
/*******************************************************************************
**
** Function btif_media_task_aa_rx_flush_req
**
** Description
**
** Returns TRUE is success
**
*******************************************************************************/
BOOLEAN btif_media_task_aa_rx_flush_req(void)
{
BT_HDR *p_buf;
if (GKI_queue_is_empty(&(btif_media_cb.RxSbcQ)) == TRUE) { /* Que is already empty */
return TRUE;
}
if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) {
return FALSE;
}
p_buf->event = BTIF_MEDIA_FLUSH_AA_RX;
fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
btif_media_task_post(SIG_MEDIA_TASK_CMD_READY);
return TRUE;
}
/*******************************************************************************
**
** Function btif_media_task_aa_rx_flush
**
** Description
**
** Returns void
**
*******************************************************************************/
static void btif_media_task_aa_rx_flush(void)
{
/* Flush all enqueued GKI SBC buffers (encoded) */
APPL_TRACE_DEBUG("btif_media_task_aa_rx_flush");
btif_media_flush_q(&(btif_media_cb.RxSbcQ));
}
int btif_a2dp_get_track_frequency(UINT8 frequency)
{
int freq = 48000;
switch (frequency) {
case A2D_SBC_IE_SAMP_FREQ_16:
freq = 16000;
break;
case A2D_SBC_IE_SAMP_FREQ_32:
freq = 32000;
break;
case A2D_SBC_IE_SAMP_FREQ_44:
freq = 44100;
break;
case A2D_SBC_IE_SAMP_FREQ_48:
freq = 48000;
break;
}
return freq;
}
int btif_a2dp_get_track_channel_count(UINT8 channeltype)
{
int count = 1;
switch (channeltype) {
case A2D_SBC_IE_CH_MD_MONO:
count = 1;
break;
case A2D_SBC_IE_CH_MD_DUAL:
case A2D_SBC_IE_CH_MD_STEREO:
case A2D_SBC_IE_CH_MD_JOINT:
count = 2;
break;
}
return count;
}
void btif_a2dp_set_peer_sep(UINT8 sep)
{
btif_media_cb.peer_sep = sep;
}
static void btif_decode_alarm_cb(UNUSED_ATTR void *context)
{
btif_media_task_post(SIG_MEDIA_TASK_AVK_ALARM_TO);
}
static void btif_media_task_aa_handle_stop_decoding(void)
{
osi_alarm_free(btif_media_cb.decode_alarm);
btif_media_cb.decode_alarm = NULL;
}
static void btif_media_task_aa_handle_start_decoding(void)
{
if (btif_media_cb.decode_alarm) {
return;
}
btif_media_cb.decode_alarm = osi_alarm_new("dec_timer\n", btif_decode_alarm_cb, NULL, BTIF_SINK_MEDIA_TIME_TICK, true);
if (!btif_media_cb.decode_alarm) {
APPL_TRACE_ERROR("%s unable to allocate decode alarm.\n", __func__);
return;
}
osi_alarm_set(btif_media_cb.decode_alarm, BTIF_SINK_MEDIA_TIME_TICK);
}
#if (BTA_AV_SINK_INCLUDED == TRUE)
static void btif_media_task_aa_handle_clear_track (void)
{
APPL_TRACE_DEBUG("btif_media_task_aa_handle_clear_track");
}
/*******************************************************************************
**
** Function btif_media_task_aa_handle_decoder_reset
**
** Description
**
** Returns void
**
*******************************************************************************/
static void btif_media_task_aa_handle_decoder_reset(BT_HDR *p_msg)
{
tBTIF_MEDIA_SINK_CFG_UPDATE *p_buf = (tBTIF_MEDIA_SINK_CFG_UPDATE *) p_msg;
tA2D_STATUS a2d_status;
tA2D_SBC_CIE sbc_cie;
OI_STATUS status;
UINT32 freq_multiple = 48 * 20; /* frequency multiple for 20ms of data , initialize with 48K*/
UINT32 num_blocks = 16;
UINT32 num_subbands = 8;
APPL_TRACE_EVENT("btif_media_task_aa_handle_decoder_reset p_codec_info[%x:%x:%x:%x:%x:%x]\n",
p_buf->codec_info[1], p_buf->codec_info[2], p_buf->codec_info[3],
p_buf->codec_info[4], p_buf->codec_info[5], p_buf->codec_info[6]);
a2d_status = A2D_ParsSbcInfo(&sbc_cie, p_buf->codec_info, FALSE);
if (a2d_status != A2D_SUCCESS) {
APPL_TRACE_ERROR("ERROR dump_codec_info A2D_ParsSbcInfo fail:%d\n", a2d_status);
return;
}
btif_media_cb.sample_rate = btif_a2dp_get_track_frequency(sbc_cie.samp_freq);
btif_media_cb.channel_count = btif_a2dp_get_track_channel_count(sbc_cie.ch_mode);
btif_media_cb.rx_flush = FALSE;
APPL_TRACE_EVENT("Reset to sink role");
status = OI_CODEC_SBC_DecoderReset(&context, contextData, sizeof(contextData), 2, 2, FALSE);
if (!OI_SUCCESS(status)) {
APPL_TRACE_ERROR("OI_CODEC_SBC_DecoderReset failed with error code %d\n", status);
}
btif_media_cb.data_channel_open = TRUE;
switch (sbc_cie.samp_freq) {
case A2D_SBC_IE_SAMP_FREQ_16:
APPL_TRACE_DEBUG("\tsamp_freq:%d (16000)\n", sbc_cie.samp_freq);
freq_multiple = 16 * 20;
break;
case A2D_SBC_IE_SAMP_FREQ_32:
APPL_TRACE_DEBUG("\tsamp_freq:%d (32000)\n", sbc_cie.samp_freq);
freq_multiple = 32 * 20;
break;
case A2D_SBC_IE_SAMP_FREQ_44:
APPL_TRACE_DEBUG("\tsamp_freq:%d (44100)\n", sbc_cie.samp_freq);
freq_multiple = 441 * 2;
break;
case A2D_SBC_IE_SAMP_FREQ_48:
APPL_TRACE_DEBUG("\tsamp_freq:%d (48000)\n", sbc_cie.samp_freq);
freq_multiple = 48 * 20;
break;
default:
APPL_TRACE_DEBUG(" Unknown Frequency ");
break;
}
switch (sbc_cie.ch_mode) {
case A2D_SBC_IE_CH_MD_MONO:
APPL_TRACE_DEBUG("\tch_mode:%d (Mono)\n", sbc_cie.ch_mode);
break;
case A2D_SBC_IE_CH_MD_DUAL:
APPL_TRACE_DEBUG("\tch_mode:%d (DUAL)\n", sbc_cie.ch_mode);
break;
case A2D_SBC_IE_CH_MD_STEREO:
APPL_TRACE_DEBUG("\tch_mode:%d (STEREO)\n", sbc_cie.ch_mode);
break;
case A2D_SBC_IE_CH_MD_JOINT:
APPL_TRACE_DEBUG("\tch_mode:%d (JOINT)\n", sbc_cie.ch_mode);
break;
default:
APPL_TRACE_DEBUG(" Unknown Mode ");
break;
}
switch (sbc_cie.block_len) {
case A2D_SBC_IE_BLOCKS_4:
APPL_TRACE_DEBUG("\tblock_len:%d (4)\n", sbc_cie.block_len);
num_blocks = 4;
break;
case A2D_SBC_IE_BLOCKS_8:
APPL_TRACE_DEBUG("\tblock_len:%d (8)\n", sbc_cie.block_len);
num_blocks = 8;
break;
case A2D_SBC_IE_BLOCKS_12:
APPL_TRACE_DEBUG("\tblock_len:%d (12)\n", sbc_cie.block_len);
num_blocks = 12;
break;
case A2D_SBC_IE_BLOCKS_16:
APPL_TRACE_DEBUG("\tblock_len:%d (16)\n", sbc_cie.block_len);
num_blocks = 16;
break;
default:
APPL_TRACE_DEBUG(" Unknown BlockLen ");
break;
}
switch (sbc_cie.num_subbands) {
case A2D_SBC_IE_SUBBAND_4:
APPL_TRACE_DEBUG("\tnum_subbands:%d (4)\n", sbc_cie.num_subbands);
num_subbands = 4;
break;
case A2D_SBC_IE_SUBBAND_8:
APPL_TRACE_DEBUG("\tnum_subbands:%d (8)\n", sbc_cie.num_subbands);
num_subbands = 8;
break;
default:
APPL_TRACE_DEBUG(" Unknown SubBands ");
break;
}
switch (sbc_cie.alloc_mthd) {
case A2D_SBC_IE_ALLOC_MD_S:
APPL_TRACE_DEBUG("\talloc_mthd:%d (SNR)\n", sbc_cie.alloc_mthd);
break;
case A2D_SBC_IE_ALLOC_MD_L:
APPL_TRACE_DEBUG("\talloc_mthd:%d (Loudness)\n", sbc_cie.alloc_mthd);
break;
default:
APPL_TRACE_DEBUG(" Unknown Allocation Method");
break;
}
APPL_TRACE_EVENT("\tBit pool Min:%d Max:%d\n", sbc_cie.min_bitpool, sbc_cie.max_bitpool);
btif_media_cb.frames_to_process = ((freq_multiple) / (num_blocks * num_subbands)) + 1;
APPL_TRACE_EVENT(" Frames to be processed in 20 ms %d\n", btif_media_cb.frames_to_process);
}
#endif
/*******************************************************************************
**
** Function btif_media_sink_enque_buf
**
** Description This function is called by the av_co to fill A2DP Sink Queue
**
**
** Returns size of the queue
*******************************************************************************/
UINT8 btif_media_sink_enque_buf(BT_HDR *p_pkt)
{
tBT_SBC_HDR *p_msg;
if (btif_media_cb.rx_flush == TRUE) { /* Flush enabled, do not enque*/
return GKI_queue_length(&btif_media_cb.RxSbcQ);
}
if (GKI_queue_length(&btif_media_cb.RxSbcQ) == MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ) {
GKI_freebuf(GKI_dequeue(&(btif_media_cb.RxSbcQ)));
}
BTIF_TRACE_VERBOSE("btif_media_sink_enque_buf + ");
/* allocate and Queue this buffer */
if ((p_msg = (tBT_SBC_HDR *) GKI_getbuf(sizeof(tBT_SBC_HDR) +
p_pkt->offset + p_pkt->len)) != NULL) {
memcpy(p_msg, p_pkt, (sizeof(BT_HDR) + p_pkt->offset + p_pkt->len));
p_msg->num_frames_to_be_processed = (*((UINT8 *)(p_msg + 1) + p_msg->offset)) & 0x0f;
BTIF_TRACE_VERBOSE("btif_media_sink_enque_buf %d + \n", p_msg->num_frames_to_be_processed);
// LOG_ERROR("sink enq %d\n", p_msg->num_frames_to_be_processed);
GKI_enqueue(&(btif_media_cb.RxSbcQ), p_msg);
if (GKI_queue_length(&btif_media_cb.RxSbcQ) == MAX_A2DP_DELAYED_START_FRAME_COUNT) {
BTIF_TRACE_DEBUG(" Initiate Decoding ");
btif_media_task_aa_handle_start_decoding();
}
} else {
/* let caller deal with a failed allocation */
BTIF_TRACE_VERBOSE("btif_media_sink_enque_buf No Buffer left - ");
}
return GKI_queue_length(&btif_media_cb.RxSbcQ);
}
/*******************************************************************************
**
** Function btif_media_aa_readbuf
**
** Description This function is called by the av_co to get the next buffer to send
**
**
** Returns void
*******************************************************************************/
BT_HDR *btif_media_aa_readbuf(void)
{
return NULL;
}
#endif /* BTA_AV_INCLUDED == TRUE */
/*******************************************************************************
**
** Function dump_codec_info
**
** Description Decode and display codec_info (for debug)
**
** Returns void
**
*******************************************************************************/
void dump_codec_info(unsigned char *p_codec)
{
tA2D_STATUS a2d_status;
tA2D_SBC_CIE sbc_cie;
a2d_status = A2D_ParsSbcInfo(&sbc_cie, p_codec, FALSE);
if (a2d_status != A2D_SUCCESS) {
APPL_TRACE_ERROR("ERROR dump_codec_info A2D_ParsSbcInfo fail:%d\n", a2d_status);
return;
}
APPL_TRACE_DEBUG("dump_codec_info");
if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_16) {
APPL_TRACE_DEBUG("\tsamp_freq:%d (16000)\n", sbc_cie.samp_freq);
} else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_32) {
APPL_TRACE_DEBUG("\tsamp_freq:%d (32000)\n", sbc_cie.samp_freq);
} else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_44) {
APPL_TRACE_DEBUG("\tsamp_freq:%d (44.100)\n", sbc_cie.samp_freq);
} else if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_48) {
APPL_TRACE_DEBUG("\tsamp_freq:%d (48000)\n", sbc_cie.samp_freq);
} else {
APPL_TRACE_DEBUG("\tBAD samp_freq:%d\n", sbc_cie.samp_freq);
}
if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_MONO) {
APPL_TRACE_DEBUG("\tch_mode:%d (Mono)\n", sbc_cie.ch_mode);
} else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_DUAL) {
APPL_TRACE_DEBUG("\tch_mode:%d (Dual)\n", sbc_cie.ch_mode);
} else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_STEREO) {
APPL_TRACE_DEBUG("\tch_mode:%d (Stereo)\n", sbc_cie.ch_mode);
} else if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_JOINT) {
APPL_TRACE_DEBUG("\tch_mode:%d (Joint)\n", sbc_cie.ch_mode);
} else {
APPL_TRACE_DEBUG("\tBAD ch_mode:%d\n", sbc_cie.ch_mode);
}
if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_4) {
APPL_TRACE_DEBUG("\tblock_len:%d (4)\n", sbc_cie.block_len);
} else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_8) {
APPL_TRACE_DEBUG("\tblock_len:%d (8)\n", sbc_cie.block_len);
} else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_12) {
APPL_TRACE_DEBUG("\tblock_len:%d (12)\n", sbc_cie.block_len);
} else if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_16) {
APPL_TRACE_DEBUG("\tblock_len:%d (16)\n", sbc_cie.block_len);
} else {
APPL_TRACE_DEBUG("\tBAD block_len:%d\n", sbc_cie.block_len);
}
if (sbc_cie.num_subbands == A2D_SBC_IE_SUBBAND_4) {
APPL_TRACE_DEBUG("\tnum_subbands:%d (4)\n", sbc_cie.num_subbands);
} else if (sbc_cie.num_subbands == A2D_SBC_IE_SUBBAND_8) {
APPL_TRACE_DEBUG("\tnum_subbands:%d (8)\n", sbc_cie.num_subbands);
} else {
APPL_TRACE_DEBUG("\tBAD num_subbands:%d\n", sbc_cie.num_subbands);
}
if (sbc_cie.alloc_mthd == A2D_SBC_IE_ALLOC_MD_S) {
APPL_TRACE_DEBUG("\talloc_mthd:%d (SNR)\n", sbc_cie.alloc_mthd);
} else if (sbc_cie.alloc_mthd == A2D_SBC_IE_ALLOC_MD_L) {
APPL_TRACE_DEBUG("\talloc_mthd:%d (Loundess)\n", sbc_cie.alloc_mthd);
} else {
APPL_TRACE_DEBUG("\tBAD alloc_mthd:%d\n", sbc_cie.alloc_mthd);
}
APPL_TRACE_DEBUG("\tBit pool Min:%d Max:%d\n", sbc_cie.min_bitpool, sbc_cie.max_bitpool);
}
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