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OVMS3-idf/components/bt/bluedroid/btc/profile/std/a2dp/btc_media_task.c

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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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: btc_media_task.c
**
** Description: This is the multimedia module for the BTC system. It
** contains task implementations AV, HS and HF profiles
** audio & video processing
**
******************************************************************************/
#include "bt_target.h"
#include "bt_trace.h"
#include <string.h>
#include <stdio.h>
#include <stdint.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 "btc_av_co.h"
#include "btc_media.h"
#include "alarm.h"
#include "bt_trace.h"
#include "thread.h"
#include "bt_defs.h"
#include "btc_av.h"
#include "btc_sm.h"
#include "btc_util.h"
#include "allocator.h"
#include "bt_utils.h"
#include "esp_a2dp_api.h"
// #if (BTA_AV_SINK_INCLUDED == TRUE)
#include "oi_codec_sbc.h"
#include "oi_status.h"
// #endif
#if BTC_AV_INCLUDED
// #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
*****************************************************************************/
/* BTC media cmd event definition : BTC_MEDIA_TASK_CMD */
enum {
BTC_MEDIA_FLUSH_AA_RX = 1,
BTC_MEDIA_AUDIO_SINK_CFG_UPDATE,
BTC_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_DATA_READY = 0xf2,
SIG_MEDIA_TASK_CMD_READY = 0xf3
};
/*
* 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 */
/* 5 frames is equivalent to 6.89*5*2.9 ~= 100 ms @ 44.1 khz, 20 ms mediatick */
#define MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ (5)
#define MEDIA_DATA_Q_LEN (1)
#define MEDIA_CTRL_Q_LEN (5)
#define COMBINED_MEDIA_Q_LEN (MEDIA_DATA_Q_LEN + MEDIA_CTRL_Q_LEN)
typedef struct {
UINT16 num_frames_to_be_processed;
UINT16 len;
UINT16 offset;
UINT16 layer_specific;
} tBT_SBC_HDR;
typedef struct {
BUFFER_Q RxSbcQ;
void *av_sm_hdl;
UINT8 peer_sep;
UINT8 busy_level;
BOOLEAN rx_flush; /* discards any incoming data when true */
BOOLEAN data_channel_open;
UINT8 channel_count;
UINT32 sample_rate;
} tBTC_MEDIA_CB;
// #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 btc_media_flush_q(BUFFER_Q *p_q);
static void btc_media_task_aa_rx_flush(void);
static const char *dump_media_event(UINT16 event);
static void btc_media_thread_handle_cmd(fixed_queue_t *queue);
/* Handle incoming media packets A2DP SINK streaming*/
static void btc_media_task_handle_inc_media(tBT_SBC_HDR *p_msg);
static void btc_media_task_aa_handle_decoder_reset(BT_HDR *p_msg);
static void btc_media_task_aa_handle_clear_track(void);
BOOLEAN btc_media_task_clear_track(void);
static void btc_media_task_handler(void *arg);
static void btc_media_task_avk_data_ready(UNUSED_ATTR void *context);
static void btc_media_thread_init(UNUSED_ATTR void *context);
static void btc_media_thread_cleanup(UNUSED_ATTR void *context);
static tBTC_MEDIA_CB btc_media_cb;
static int media_task_running = MEDIA_TASK_STATE_OFF;
static fixed_queue_t *btc_media_cmd_msg_queue = NULL;
static xTaskHandle xBtcMediaTaskHandle = NULL;
static QueueHandle_t xBtcMediaDataQueue = NULL;
static QueueHandle_t xBtcMediaCtrlQueue = NULL;
static QueueSetHandle_t xBtcMediaQueueSet;
static esp_a2d_data_cb_t bt_av_sink_data_callback = NULL;
void btc_a2dp_sink_reg_data_cb(esp_a2d_data_cb_t callback)
{
// todo: critical section protection
bt_av_sink_data_callback = callback;
}
static inline void btc_a2d_data_cb_to_app(const uint8_t *data, uint32_t len)
{
// todo: critical section protection
if (bt_av_sink_data_callback) {
bt_av_sink_data_callback(data, len);
}
}
/*****************************************************************************
** Misc helper functions
*****************************************************************************/
UNUSED_ATTR static const char *dump_media_event(UINT16 event)
{
switch (event) {
CASE_RETURN_STR(BTC_MEDIA_FLUSH_AA_RX)
CASE_RETURN_STR(BTC_MEDIA_AUDIO_SINK_CFG_UPDATE)
CASE_RETURN_STR(BTC_MEDIA_AUDIO_SINK_CLEAR_TRACK)
default:
return "UNKNOWN MEDIA EVENT";
}
}
/*****************************************************************************
** BTC ADAPTATION
*****************************************************************************/
static void btc_media_ctrl_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(xBtcMediaCtrlQueue, &evt, 10 / portTICK_RATE_MS) != pdTRUE) {
APPL_TRACE_WARNING("xBtcMediaCtrlQueue failed, sig 0x%x\n", sig);
}
}
static void btc_media_data_post(void)
{
void *evt;
if (xQueueSend(xBtcMediaDataQueue, &evt, 0) != pdTRUE) {
APPL_TRACE_DEBUG("Media data Q filled\n");
}
}
static void btc_media_ctrl_handler(BtTaskEvt_t *e)
{
if (e == NULL) {
return;
}
switch (e->sig) {
case SIG_MEDIA_TASK_CMD_READY:
fixed_queue_process(btc_media_cmd_msg_queue);
break;
case SIG_MEDIA_TASK_INIT:
btc_media_thread_init(NULL);
break;
case SIG_MEDIA_TASK_CLEAN_UP:
btc_media_thread_cleanup(NULL);
break;
default:
APPL_TRACE_WARNING("media task unhandled evt: 0x%x\n", e->sig);
}
}
static void btc_media_task_handler(void *arg)
{
QueueSetMemberHandle_t xActivatedMember;
BtTaskEvt_t *e = NULL;
for (;;) {
xActivatedMember = xQueueSelectFromSet(xBtcMediaQueueSet, portMAX_DELAY);
if (xActivatedMember == xBtcMediaDataQueue) {
xQueueReceive(xActivatedMember, &e, 0);
btc_media_task_avk_data_ready(NULL);
} else if (xActivatedMember == xBtcMediaCtrlQueue) {
xQueueReceive(xActivatedMember, &e, 0);
btc_media_ctrl_handler(e);
osi_free(e);
}
}
}
bool btc_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 ##");
xBtcMediaQueueSet = xQueueCreateSet(COMBINED_MEDIA_Q_LEN);
configASSERT(xBtcMediaQueueSet);
xBtcMediaDataQueue = xQueueCreate(MEDIA_DATA_Q_LEN, sizeof(void *));
configASSERT(xBtcMediaDataQueue);
xQueueAddToSet(xBtcMediaDataQueue, xBtcMediaQueueSet);
xBtcMediaCtrlQueue = xQueueCreate(MEDIA_CTRL_Q_LEN, sizeof(void *));
configASSERT(xBtcMediaCtrlQueue);
xQueueAddToSet(xBtcMediaCtrlQueue, xBtcMediaQueueSet);
if (!xBtcMediaDataQueue || !xBtcMediaCtrlQueue || !xBtcMediaQueueSet ) {
goto error_exit;
}
xTaskCreatePinnedToCore(btc_media_task_handler, "BtcMediaT\n", 2048, NULL, configMAX_PRIORITIES - 3, &xBtcMediaTaskHandle, 0);
if (xBtcMediaTaskHandle == NULL) {
goto error_exit;
}
btc_media_cmd_msg_queue = fixed_queue_new(SIZE_MAX);
if (btc_media_cmd_msg_queue == NULL) {
goto error_exit;
}
fixed_queue_register_dequeue(btc_media_cmd_msg_queue, btc_media_thread_handle_cmd);
btc_media_ctrl_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 (xBtcMediaTaskHandle != NULL) {
vTaskDelete(xBtcMediaTaskHandle);
xBtcMediaTaskHandle = NULL;
}
if (xBtcMediaDataQueue) {
vQueueDelete(xBtcMediaDataQueue);
xBtcMediaDataQueue = NULL;
}
if (xBtcMediaCtrlQueue) {
vQueueDelete(xBtcMediaCtrlQueue);
xBtcMediaCtrlQueue = NULL;
}
fixed_queue_free(btc_media_cmd_msg_queue, NULL);
btc_media_cmd_msg_queue = NULL;
return false;
}
void btc_a2dp_stop_media_task(void)
{
APPL_TRACE_EVENT("## A2DP STOP MEDIA THREAD ##\n");
// Exit thread
btc_media_ctrl_post(SIG_MEDIA_TASK_CLEAN_UP);
// TODO: wait until CLEAN up is done, then do task delete
vTaskDelete(xBtcMediaTaskHandle);
xBtcMediaTaskHandle = NULL;
vQueueDelete(xBtcMediaDataQueue);
xBtcMediaDataQueue = NULL;
vQueueDelete(xBtcMediaCtrlQueue);
xBtcMediaCtrlQueue = NULL;
fixed_queue_free(btc_media_cmd_msg_queue, NULL);
btc_media_cmd_msg_queue = NULL;
}
/*****************************************************************************
**
** Function btc_a2dp_on_init
**
** Description
**
** Returns
**
*******************************************************************************/
void btc_a2dp_on_init(void)
{
//tput_mon(1, 0, 1);
}
/*****************************************************************************
**
** Function btc_a2dp_setup_codec
**
** Description
**
** Returns
**
*******************************************************************************/
void btc_a2dp_setup_codec(void)
{
tBTC_AV_MEDIA_FEEDINGS media_feeding;
tBTC_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 = BTC_AV_CODEC_PCM;
bta_av_co_audio_set_codec(&media_feeding, &status);
GKI_enable();
}
/*****************************************************************************
**
** Function btc_a2dp_on_idle
**
** Description
**
** Returns
**
*******************************************************************************/
void btc_a2dp_on_idle(void)
{
APPL_TRACE_EVENT("## ON A2DP IDLE ##\n");
bta_av_co_init();
if (btc_media_cb.peer_sep == AVDT_TSEP_SRC) {
btc_media_cb.rx_flush = TRUE;
btc_media_task_aa_rx_flush_req();
btc_media_task_clear_track();
APPL_TRACE_DEBUG("Stopped BT track");
}
}
/*******************************************************************************
**
** Function btc_media_task_clear_track
**
** Description
**
** Returns TRUE is success
**
*******************************************************************************/
BOOLEAN btc_media_task_clear_track(void)
{
BT_HDR *p_buf;
if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) {
return FALSE;
}
p_buf->event = BTC_MEDIA_AUDIO_SINK_CLEAR_TRACK;
fixed_queue_enqueue(btc_media_cmd_msg_queue, p_buf);
btc_media_ctrl_post(SIG_MEDIA_TASK_CMD_READY);
return TRUE;
}
/*****************************************************************************
**
** Function btc_reset_decoder
**
** Description
**
** Returns
**
*******************************************************************************/
void btc_reset_decoder(UINT8 *p_av)
{
APPL_TRACE_EVENT("btc_reset_decoder");
APPL_TRACE_DEBUG("btc_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]);
tBTC_MEDIA_SINK_CFG_UPDATE *p_buf;
if (NULL == (p_buf = GKI_getbuf(sizeof(tBTC_MEDIA_SINK_CFG_UPDATE)))) {
APPL_TRACE_ERROR("btc_reset_decoder No Buffer ");
return;
}
memcpy(p_buf->codec_info, p_av, AVDT_CODEC_SIZE);
p_buf->hdr.event = BTC_MEDIA_AUDIO_SINK_CFG_UPDATE;
fixed_queue_enqueue(btc_media_cmd_msg_queue, p_buf);
btc_media_ctrl_post(SIG_MEDIA_TASK_CMD_READY);
}
/*****************************************************************************
**
** Function btc_a2dp_on_stopped
**
** Description
**
** Returns
**
*******************************************************************************/
void btc_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av)
{
APPL_TRACE_EVENT("## ON A2DP STOPPED ##\n");
if (btc_media_cb.peer_sep == AVDT_TSEP_SRC) { /* Handling for A2DP SINK cases*/
btc_media_cb.rx_flush = TRUE;
btc_media_task_aa_rx_flush_req();
btc_media_cb.data_channel_open = FALSE;
return;
}
}
/*****************************************************************************
**
** Function btc_a2dp_on_suspended
**
** Description
**
** Returns
**
*******************************************************************************/
void btc_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av)
{
APPL_TRACE_EVENT("## ON A2DP SUSPENDED ##\n");
if (btc_media_cb.peer_sep == AVDT_TSEP_SRC) {
btc_media_cb.rx_flush = TRUE;
btc_media_task_aa_rx_flush_req();
return;
}
}
/* when true media task discards any rx frames */
void btc_a2dp_set_rx_flush(BOOLEAN enable)
{
APPL_TRACE_EVENT("## DROP RX %d ##\n", enable);
btc_media_cb.rx_flush = enable;
}
static void btc_media_task_avk_data_ready(UNUSED_ATTR void *context)
{
UINT8 count;
tBT_SBC_HDR *p_msg;
count = btc_media_cb.RxSbcQ._count;
if (0 == count) {
APPL_TRACE_DEBUG(" QUE EMPTY ");
} else {
if (btc_media_cb.rx_flush == TRUE) {
btc_media_flush_q(&(btc_media_cb.RxSbcQ));
return;
}
while ((p_msg = (tBT_SBC_HDR *)GKI_getfirst(&(btc_media_cb.RxSbcQ))) != NULL ) {
btc_media_task_handle_inc_media(p_msg);
p_msg = GKI_dequeue(&(btc_media_cb.RxSbcQ));
if ( p_msg == NULL ) {
APPL_TRACE_ERROR("Insufficient data in que ");
break;
}
GKI_freebuf(p_msg);
}
APPL_TRACE_DEBUG(" Process Frames - ");
}
}
static void btc_media_thread_init(UNUSED_ATTR void *context)
{
APPL_TRACE_EVENT("%s\n", __func__);
memset(&btc_media_cb, 0, sizeof(btc_media_cb));
btc_media_cb.av_sm_hdl = btc_av_get_sm_handle();
raise_priority_a2dp(TASK_HIGH_MEDIA);
media_task_running = MEDIA_TASK_STATE_ON;
}
static void btc_media_thread_cleanup(UNUSED_ATTR void *context)
{
/* make sure no channels are restarted while shutting down */
media_task_running = MEDIA_TASK_STATE_SHUTTING_DOWN;
btc_media_cb.data_channel_open = FALSE;
/* Clear media task flag */
media_task_running = MEDIA_TASK_STATE_OFF;
}
/*******************************************************************************
**
** Function btc_media_flush_q
**
** Description
**
** Returns void
**
*******************************************************************************/
static void btc_media_flush_q(BUFFER_Q *p_q)
{
while (!GKI_queue_is_empty(p_q)) {
GKI_freebuf(GKI_dequeue(p_q));
}
}
static void btc_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);
APPL_TRACE_VERBOSE("btc_media_thread_handle_cmd : %d %s\n", p_msg->event,
dump_media_event(p_msg->event));
switch (p_msg->event) {
case BTC_MEDIA_AUDIO_SINK_CFG_UPDATE:
btc_media_task_aa_handle_decoder_reset(p_msg);
break;
case BTC_MEDIA_AUDIO_SINK_CLEAR_TRACK:
btc_media_task_aa_handle_clear_track();
break;
case BTC_MEDIA_FLUSH_AA_RX:
btc_media_task_aa_rx_flush();
break;
default:
APPL_TRACE_ERROR("ERROR in %s unknown event %d\n", __func__, p_msg->event);
}
GKI_freebuf(p_msg);
APPL_TRACE_VERBOSE("%s: %s DONE\n", __func__, dump_media_event(p_msg->event));
}
}
/*******************************************************************************
**
** Function btc_media_task_handle_inc_media
**
** Description
**
** Returns void
**
*******************************************************************************/
static void btc_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 ((btc_media_cb.peer_sep == AVDT_TSEP_SNK) || (btc_media_cb.rx_flush)) {
APPL_TRACE_DEBUG(" State Changed happened in this tick ");
return;
}
// ignore data if no one is listening
if (!btc_media_cb.data_channel_open) {
return;
}
APPL_TRACE_DEBUG("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;
}
btc_a2d_data_cb_to_app((uint8_t *)pcmData, (2 * sizeof(pcmData) - availPcmBytes));
}
/*******************************************************************************
**
** Function btc_media_task_aa_rx_flush_req
**
** Description
**
** Returns TRUE is success
**
*******************************************************************************/
BOOLEAN btc_media_task_aa_rx_flush_req(void)
{
BT_HDR *p_buf;
if (GKI_queue_is_empty(&(btc_media_cb.RxSbcQ)) == TRUE) { /* Que is already empty */
return TRUE;
}
if (NULL == (p_buf = GKI_getbuf(sizeof(BT_HDR)))) {
return FALSE;
}
p_buf->event = BTC_MEDIA_FLUSH_AA_RX;
fixed_queue_enqueue(btc_media_cmd_msg_queue, p_buf);
btc_media_ctrl_post(SIG_MEDIA_TASK_CMD_READY);
return TRUE;
}
/*******************************************************************************
**
** Function btc_media_task_aa_rx_flush
**
** Description
**
** Returns void
**
*******************************************************************************/
static void btc_media_task_aa_rx_flush(void)
{
/* Flush all enqueued GKI SBC buffers (encoded) */
APPL_TRACE_DEBUG("btc_media_task_aa_rx_flush");
btc_media_flush_q(&(btc_media_cb.RxSbcQ));
}
int btc_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 btc_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 btc_a2dp_set_peer_sep(UINT8 sep)
{
btc_media_cb.peer_sep = sep;
}
static void btc_media_task_aa_handle_clear_track (void)
{
APPL_TRACE_DEBUG("btc_media_task_aa_handle_clear_track");
}
/*******************************************************************************
**
** Function btc_media_task_aa_handle_decoder_reset
**
** Description
**
** Returns void
**
*******************************************************************************/
static void btc_media_task_aa_handle_decoder_reset(BT_HDR *p_msg)
{
tBTC_MEDIA_SINK_CFG_UPDATE *p_buf = (tBTC_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("btc_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;
}
btc_media_cb.sample_rate = btc_a2dp_get_track_frequency(sbc_cie.samp_freq);
btc_media_cb.channel_count = btc_a2dp_get_track_channel_count(sbc_cie.ch_mode);
btc_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);
}
btc_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);
int frames_to_process = ((freq_multiple) / (num_blocks * num_subbands)) + 1;
APPL_TRACE_EVENT(" Frames to be processed in 20 ms %d\n", frames_to_process);
}
/*******************************************************************************
**
** Function btc_media_sink_enque_buf
**
** Description This function is called by the av_co to fill A2DP Sink Queue
**
**
** Returns size of the queue
*******************************************************************************/
UINT8 btc_media_sink_enque_buf(BT_HDR *p_pkt)
{
tBT_SBC_HDR *p_msg;
if (btc_media_cb.rx_flush == TRUE) { /* Flush enabled, do not enque*/
return GKI_queue_length(&btc_media_cb.RxSbcQ);
}
if (GKI_queue_length(&btc_media_cb.RxSbcQ) >= MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ) {
APPL_TRACE_WARNING("Pkt dropped\n");
return GKI_queue_length(&btc_media_cb.RxSbcQ);
}
APPL_TRACE_DEBUG("btc_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;
APPL_TRACE_VERBOSE("btc_media_sink_enque_buf %d + \n", p_msg->num_frames_to_be_processed);
GKI_enqueue(&(btc_media_cb.RxSbcQ), p_msg);
btc_media_data_post();
} else {
/* let caller deal with a failed allocation */
APPL_TRACE_WARNING("btc_media_sink_enque_buf No Buffer left - ");
}
return GKI_queue_length(&btc_media_cb.RxSbcQ);
}
/*******************************************************************************
**
** Function btc_media_aa_readbuf
**
** Description This function is called by the av_co to get the next buffer to send
**
**
** Returns void
*******************************************************************************/
BT_HDR *btc_media_aa_readbuf(void)
{
return NULL;
}
/*******************************************************************************
**
** 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);
}
#endif /* #if BTC_AV_INCLUDED */
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