256 lines
6.7 KiB
C
256 lines
6.7 KiB
C
#include "system/includes.h"
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#include "classic/tws_api.h"
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#include "btstack/avctp_user.h"
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#include "btstack/a2dp_media_codec.h"
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#include "app_config.h"
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#include "app_main.h"
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#include "app_action.h"
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#include "app_task.h"
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#include "audio_config.h"
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static u16 clear_to_seqn = 0;
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static u16 slience_timer;
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static u8 unmute_packet_cnt;
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static u8 g_bt_background = 0;
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static u8 energy_check_stop;
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u8 bt_media_is_running();
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void a2dp_dec_close();
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void bt_switch_to_foreground(int action, bool exit_curr_app);
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#define TWS_A2DP_CLEAR_ID TWS_FUNC_ID('A', 2, 'C', 'R')
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static void __tws_a2dp_clear_to_seqn(void *data, u16 len, bool rx)
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{
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if (rx) {
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clear_to_seqn = *(u16 *)data;
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}
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}
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REGISTER_TWS_FUNC_STUB(tws_a2dp_clear_to_seqn) = {
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.func_id = TWS_A2DP_CLEAR_ID,
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.func = __tws_a2dp_clear_to_seqn,
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};
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bool bt_in_background()
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{
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return g_bt_background;
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}
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void a2dp_slience_detect(void *p)
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{
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int len;
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u8 *packet;
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int ingore_packet_num = (int)p;
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int role = tws_api_get_role();
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u32 media_type;
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putchar('^');
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while (1) {
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media_type = a2dp_media_get_codec_type();
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len = a2dp_media_try_get_packet(&packet);
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if (len <= 0) {
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break;
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}
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u16 seqn = (packet[2] << 8) | packet[3];
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if (role == TWS_ROLE_MASTER) {
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if (clear_to_seqn == 0) {
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clear_to_seqn = seqn + ingore_packet_num;
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if (clear_to_seqn == 0) {
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clear_to_seqn = 1;
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}
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a2dp_media_free_packet(packet);
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a2dp_media_clear_packet_before_seqn(clear_to_seqn);
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break;
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}
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//能量检测
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if (energy_check_stop == 0) {
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int energy;
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if (media_type == 0) {
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energy = sbc_energy_check(packet, len);
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} else {
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energy = aac_energy_check(packet, len);
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}
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printf("energy:media_type= %d,%d, %d, %d\n", media_type, seqn, energy, unmute_packet_cnt);
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if (energy >= 10) {
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if (++unmute_packet_cnt >= 20) {
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unmute_packet_cnt = 0;
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energy_check_stop = 1;
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//能量检测结束,通知从机丢到指定包号数据，然后开始A2DP解码
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clear_to_seqn = seqn + 10;
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if (clear_to_seqn == 0) {
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clear_to_seqn = 1;
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}
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tws_api_send_data_to_slave(&clear_to_seqn, 2, TWS_A2DP_CLEAR_ID);
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}
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} else {
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unmute_packet_cnt >>= 1;
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}
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a2dp_media_free_packet(packet);
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continue;
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}
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}
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printf("seqn: %d, %d\n", seqn, clear_to_seqn);
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a2dp_media_free_packet(packet);
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if (clear_to_seqn && seqn_after(seqn, clear_to_seqn)) {
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clear_to_seqn = 0;
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sys_timer_del(slience_timer);
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slience_timer = 0;
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if (!bt_in_background()) {
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//先点击手机播放再立马按键切模式时，此处需要打开a2dp解码
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g_bt_background = 1;
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bt_switch_to_foreground(ACTION_A2DP_START, 0);
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} else {
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app_task_switch_to(APP_BT_TASK, ACTION_A2DP_START);
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}
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break;
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}
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}
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}
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void bt_start_a2dp_slience_detect(int ingore_packet_num)
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{
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if (slience_timer) {
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sys_timer_del(slience_timer);
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}
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clear_to_seqn = 0;
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unmute_packet_cnt = 0;
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energy_check_stop = 0;
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slience_timer = sys_timer_add((void *)ingore_packet_num, a2dp_slience_detect, 40);
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g_printf("bt_start_a2dp_slience_detect=%d\n", slience_timer);
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}
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void bt_stop_a2dp_slience_detect()
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{
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if (slience_timer) {
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sys_timer_del(slience_timer);
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g_printf("bt_stop_a2dp_slience_detect");
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slience_timer = 0;
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}
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}
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int bt_switch_to_background()
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{
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int a2dp_state;
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int esco_state;
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struct intent it;
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if (app_var.siri_stu && app_var.siri_stu != 3 && get_esco_busy_flag()) {
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// siri不退出
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return -EINVAL;
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}
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esco_state = get_call_status();
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if (esco_state == BT_CALL_OUTGOING ||
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esco_state == BT_CALL_ALERT ||
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esco_state == BT_CALL_INCOMING ||
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esco_state == BT_CALL_ACTIVE) {
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// 通话不退出
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return -EINVAL;
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}
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a2dp_state = a2dp_get_status();
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r_printf("a2dp_state=%d\n", a2dp_state);
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if ((tws_api_get_role() == TWS_ROLE_MASTER) && (a2dp_state == BT_MUSIC_STATUS_STARTING)) {
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user_send_cmd_prepare(USER_CTRL_AVCTP_OPID_PAUSE, 0, NULL);
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}
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if (bt_media_is_running()) {
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a2dp_dec_close();
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a2dp_media_clear_packet_before_seqn(0);
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bt_start_a2dp_slience_detect(30);
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}
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g_bt_background = 1;
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return 0;
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}
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void bt_switch_to_foreground(int action, bool exit_curr_app)
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{
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struct intent it;
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if (g_bt_background) {
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g_bt_background = 0;
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/* 退出当前模式 */
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if (exit_curr_app) {
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init_intent(&it);
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it.action = ACTION_BACK;
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start_app(&it);
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}
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}
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if (action) {
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init_intent(&it);
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it.name = "earphone";
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it.action = action;
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start_app(&it);
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}
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}
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int bt_background_event_probe_handler(struct bt_event *bt)
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{
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int len;
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switch (bt->event) {
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case BT_STATUS_INIT_OK:
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len = syscfg_read(CFG_HAVE_MASS_STORAGE, &app_var.have_mass_storage, 1);
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if (len != 1) {
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if (dev_online("sd0")) {
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app_var.have_mass_storage = 1;
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syscfg_write(CFG_HAVE_MASS_STORAGE, &app_var.have_mass_storage, 1);
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}
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}
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printf("have_mass_storage: %d\n", app_var.have_mass_storage);
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break;
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case BT_STATUS_A2DP_MEDIA_START:
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puts("BT_STATUS_A2DP_MEDIA_START\n");
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if (bt_in_background()) {
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bt_start_a2dp_slience_detect(30);
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return -EINVAL;
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} else {
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bt_stop_a2dp_slience_detect();
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}
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break;
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case BT_STATUS_A2DP_MEDIA_STOP:
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puts("BT_STATUS_A2DP_MEDIA_STOP\n");
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if (bt_in_background()) {
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bt_stop_a2dp_slience_detect();
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extern void free_a2dp_using_decoder_conn();
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free_a2dp_using_decoder_conn();
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return -EINVAL;
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}
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break;
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case BT_STATUS_VOICE_RECOGNITION:
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if (bt->value && bt->value != 3) {
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} else {
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break;
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}
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case BT_STATUS_PHONE_INCOME:
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case BT_STATUS_PHONE_OUT:
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case BT_STATUS_PHONE_ACTIVE:
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bt_switch_to_foreground(ACTION_DO_NOTHING, 0);
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break;
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}
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return 0;
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}
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