52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/******************************************************************************
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* @file car_audio_test.c
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* @brief Car audio hardware test using the SDK key-tone sine path.
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*
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* Notes:
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* - The SDK sine sample rate is 16 kHz; points is the PCM sample count.
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* - freq is specified as actual frequency * 512.
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* - decay=0 keeps amplitude constant for observing DAC/PA end behavior.
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* - The parameter array has static storage because playback is asynchronous.
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******************************************************************************/
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#include <stdint.h>
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#include "system/includes.h"
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#include "tone_player.h"
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#include "application/audio_dec_app.h"
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#include "car_audio_test.h"
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#include "app_audio_debug.h"
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static uint16_t s_car_audio_restart_guard_ms;
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int Car_Audio_Test_Play(void)
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{
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/* bird.mp3 is packed as a standalone file in the internal resource area. */
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int ret;
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MAGIC_AUDIO_LOG("鸟叫接口进入：资源=%s，当前播放状态=%d",
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SDFILE_RES_ROOT_PATH"bird.mp3", audio_key_tone_is_play());
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ret = audio_key_tone_play_name(SDFILE_RES_ROOT_PATH"bird.mp3", 1);
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MAGIC_AUDIO_LOG("鸟叫请求返回=%d（0仅表示请求已提交，不代表已经出声）", ret);
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return ret;
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}
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void Car_Audio_Test_Loop(uint16_t dt_ms)
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{
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if (s_car_audio_restart_guard_ms > dt_ms) {
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s_car_audio_restart_guard_ms -= dt_ms;
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return;
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}
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if (audio_key_tone_is_play()) {
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return;
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}
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if (Car_Audio_Test_Play() == 0) {
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/*
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* 防止播放请求刚入队、SDK 尚未更新播放状态时被重复提交。
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*/
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s_car_audio_restart_guard_ms = 50;
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}
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}
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