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@@ -1,541 +0,0 @@
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---[[
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-@module exaudio
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-@summary exaudio扩展库
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-@version 1.1
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-@date 2025.09.01
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-@author 梁健
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-@usage
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-]]
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-local exaudio = {}
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-
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--- 常量定义
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-local I2S_ID = 0
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-local I2S_MODE = 0 -- 0:主机 1:从机
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-local I2S_SAMPLE_RATE = 16000
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-local I2S_CHANNEL_FORMAT = i2s.MONO_R
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-local I2S_COMM_FORMAT = i2s.MODE_LSB -- 可选MODE_I2S, MODE_LSB, MODE_MSB
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-local I2S_CHANNEL_BITS = 16
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-local MULTIMEDIA_ID = 0
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-local EX_MSG_PLAY_DONE = "playDone"
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-local ES8311_ADDR = 0x18 -- 7位地址
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-local CHIP_ID_REG = 0x00 -- 芯片ID寄存器地址
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-
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--- 模块常量
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-exaudio.PLAY_DONE = 1 -- 音频播放完毕的事件之一
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-exaudio.RECORD_DONE = 1 -- 音频录音完毕的事件之一
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-exaudio.AMR_NB = 0
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-exaudio.AMR_WB = 1
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-exaudio.PCM_8000 = 2
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-exaudio.PCM_16000 = 3
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-exaudio.PCM_24000 = 4
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-exaudio.PCM_32000 = 5
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-
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-
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--- 默认配置参数
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-local audio_setup_param = {
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- model = "es8311", -- dac类型: "es8311","es8211"
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- i2c_id = 0, -- i2c_id: 0,1
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- pa_ctrl = 0, -- 音频放大器电源控制管脚
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- dac_ctrl = 0, -- 音频编解码芯片电源控制管脚
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- dac_delay = 3, -- DAC启动前冗余时间(100ms)
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- pa_delay = 100, -- DAC启动后延迟打开PA的时间(ms)
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- dac_time_delay = 600, -- 播放完毕后PA与DAC关闭间隔(ms)
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- bits_per_sample = 16, -- 采样位数
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- pa_on_level = 1 -- PA打开电平 1:高 0:低
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-}
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-
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-local audio_play_param = {
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- type = 0, -- 0:文件 1:TTS 2:流式
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- content = nil, -- 播放内容
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- cbfnc = nil, -- 播放完毕回调
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- priority = 0, -- 优先级(数值越大越高)
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- sampling_rate = 16000, -- 采样率(仅流式)
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- sampling_depth = 16, -- 采样位深(仅流式)
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- signed_or_unsigned = true -- PCM是否有符号(仅流式)
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-}
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-
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-local audio_record_param = {
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- format = 0, -- 录制格式，支持exaudio.AMR_NB，exaudio.AMR_WB,exaudio.PCM_8000,exaudio.PCM_16000,exaudio.PCM_24000,exaudio.PCM_32000
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- time = 5, -- 录制时间(秒)
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- path = nil, -- 文件路径或流式回调
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- cbfnc = nil -- 录音完毕回调
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-}
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-
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--- 内部变量
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-local pcm_buff0 = nil
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-local pcm_buff1 = nil
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-local voice_vol = 55
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-local mic_vol = 80
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-
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--- 定义全局队列表
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-local audio_play_queue = {
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- data = {}, -- 存储字符串的数组
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- sequenceIndex = 1 -- 用于跟踪插入顺序的索引
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-}
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-
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--- 向队列中添加字符串（按调用顺序插入）
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-local function audio_play_queue_push(str)
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- if type(str) == "string" then
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- -- 存储格式: {index = 顺序索引, value = 字符串值}
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- table.insert(audio_play_queue.data, {
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- index = audio_play_queue.sequenceIndex,
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- value = str
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- })
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- audio_play_queue.sequenceIndex = audio_play_queue.sequenceIndex + 1
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- return true
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- end
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- return false
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-end
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-
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--- 从队列中取出最早插入的字符串（按顺序取出）
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-local function audio_play_queue_pop()
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- if #audio_play_queue.data > 0 then
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- -- 取出并移除第一个元素
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- local item = table.remove(audio_play_queue.data, 1)
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- return item.value -- 返回值
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- end
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- return nil
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-end
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--- 清空队列中所有数据
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-function audio_queue_clear()
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- -- 清空数组
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- audio_play_queue.data = {}
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- -- 重置顺序索引
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- audio_play_queue.sequenceIndex = 1
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- return true
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-end
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-
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--- 工具函数：参数检查
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-local function check_param(param, expected_type, name)
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- if type(param) ~= expected_type then
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- log.error(string.format("参数错误: %s 应为 %s 类型", name, expected_type))
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- return false
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- end
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- return true
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-end
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-
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--- 音频回调处理
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-local function audio_callback(id, event, point)
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- -- log.info("audio_callback", "event:", event,
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- -- "MORE_DATA:", audio.MORE_DATA,
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- -- "DONE:", audio.DONE,
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- -- "RECORD_DATA:", audio.RECORD_DATA,
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- -- "RECORD_DONE:", audio.RECORD_DONE)
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-
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- if event == audio.MORE_DATA then
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- audio.write(MULTIMEDIA_ID,audio_play_queue_pop())
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- elseif event == audio.DONE then
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- if type(audio_play_param.cbfnc) == "function" then
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- audio_play_param.cbfnc(exaudio.PLAY_DONE)
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- end
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- audio_queue_clear() -- 清空流式播放数据队列
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- sys.publish(EX_MSG_PLAY_DONE)
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-
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- elseif event == audio.RECORD_DATA then
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- if type(audio_record_param.path) == "function" then
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- local buff, len = point == 0 and pcm_buff0 or pcm_buff1,
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- point == 0 and pcm_buff0:used() or pcm_buff1:used()
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- audio_record_param.path(buff, len)
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- end
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-
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- elseif event == audio.RECORD_DONE then
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- if type(audio_record_param.cbfnc) == "function" then
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- audio_record_param.cbfnc(exaudio.RECORD_DONE)
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- end
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- end
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-end
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-
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--- 读取ES8311芯片ID
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-local function read_es8311_id()
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-
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-
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- -- 发送读取请求
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- local send_ok = i2c.send(audio_setup_param.i2c_id, ES8311_ADDR, CHIP_ID_REG)
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- if not send_ok then
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- log.error("发送芯片ID读取请求失败")
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- return false
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- end
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-
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- -- 读取数据
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- local data = i2c.recv(audio_setup_param.i2c_id, ES8311_ADDR, 1)
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- if data and #data == 1 then
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- return true
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- end
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-
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- log.error("读取ES8311芯片ID失败")
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- return false
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-end
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-
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--- 音频硬件初始化
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-local function audio_setup()
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- -- I2C配置
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- if not i2c.setup(audio_setup_param.i2c_id, i2c.FAST) then
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- log.error("I2C初始化失败")
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- return false
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- end
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- -- 初始化I2S
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- local result, data = i2s.setup(
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- I2S_ID,
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- I2S_MODE,
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- I2S_SAMPLE_RATE,
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- audio_setup_param.bits_per_sample,
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- I2S_CHANNEL_FORMAT,
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- I2S_COMM_FORMAT,
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- I2S_CHANNEL_BITS
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- )
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-
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- if not result then
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- log.error("I2S设置失败")
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- return false
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- end
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- -- 配置音频通道
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- audio.config(
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- MULTIMEDIA_ID,
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- audio_setup_param.pa_ctrl,
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- audio_setup_param.pa_on_level,
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- audio_setup_param.dac_delay,
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- audio_setup_param.pa_delay,
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- audio_setup_param.dac_ctrl,
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- 1, -- power_on_level
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- audio_setup_param.dac_time_delay
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- )
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- -- 设置总线
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- audio.setBus(
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- MULTIMEDIA_ID,
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- audio.BUS_I2S,
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- {
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- chip = audio_setup_param.model,
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- i2cid = audio_setup_param.i2c_id,
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- i2sid = I2S_ID,
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- voltage = audio.VOLTAGE_1800
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- }
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- )
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-
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-
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- -- 设置音量
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- audio.vol(MULTIMEDIA_ID, voice_vol)
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- audio.micVol(MULTIMEDIA_ID, mic_vol)
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- audio.pm(MULTIMEDIA_ID, audio.RESUME)
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-
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- -- 检查芯片连接
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- if audio_setup_param.model == "es8311" and not read_es8311_id() then
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- log.error("ES8311通讯失败，请检查硬件")
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- return false
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- end
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-
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- -- 注册回调
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- audio.on(MULTIMEDIA_ID, audio_callback)
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- return true
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-end
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-
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--- 模块接口：初始化
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-function exaudio.setup(audioConfigs)
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- -- 检查必要参数
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- if not audio then
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- log.error("不支持audio 库,请选择支持audio 的core")
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- return false
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- end
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- if not audioConfigs or type(audioConfigs) ~= "table" then
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- log.error("配置参数必须为table类型")
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- return false
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- end
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- -- 检查codec型号
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- if not audioConfigs.model or
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- (audioConfigs.model ~= "es8311" and audioConfigs.model ~= "es8211") then
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- log.error("请指定正确的codec型号(es8311或es8211)")
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- return false
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- end
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- audio_setup_param.model = audioConfigs.model
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- -- 针对ES8311的特殊检查
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- if audioConfigs.model == "es8311" then
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- if not check_param(audioConfigs.i2c_id, "number", "i2c_id") then
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- return false
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- end
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- audio_setup_param.i2c_id = audioConfigs.i2c_id
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- end
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-
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- -- 检查功率放大器控制管脚
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- if audioConfigs.pa_ctrl == nil then
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- log.warn("pa_ctrl(功率放大器控制管脚)是控制pop 音的重要管脚,建议硬件设计加上")
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- end
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- audio_setup_param.pa_ctrl = audioConfigs.pa_ctrl
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-
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- -- 检查功率放大器控制管脚
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- if audioConfigs.dac_ctrl == nil then
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- log.warn("dac_ctrl(音频编解码控制管脚)是控制pop 音的重要管脚,建议硬件设计加上")
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- end
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- audio_setup_param.dac_ctrl = audioConfigs.dac_ctrl
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-
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-
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- -- 处理可选参数
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- local optional_params = {
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- {name = "dac_delay", type = "number"},
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- {name = "pa_delay", type = "number"},
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- {name = "dac_time_delay", type = "number"},
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- {name = "bits_per_sample", type = "number"},
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- {name = "pa_on_level", type = "number"}
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- }
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-
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- for _, param in ipairs(optional_params) do
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- if audioConfigs[param.name] ~= nil then
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- if check_param(audioConfigs[param.name], param.type, param.name) then
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- audio_setup_param[param.name] = audioConfigs[param.name]
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- else
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- return false
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- end
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- end
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- end
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-
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- -- 确保采样位数有默认值
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- audio_setup_param.bits_per_sample = audio_setup_param.bits_per_sample or 16
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- return audio_setup()
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-end
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-
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--- 模块接口：开始播放
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-function exaudio.play_start(playConfigs)
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- if not playConfigs or type(playConfigs) ~= "table" then
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- log.error("播放配置必须为table类型")
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- return false
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- end
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-
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- -- 检查播放类型
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- if not check_param(playConfigs.type, "number", "type") then
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- log.error("type必须为数值(0:文件,1:TTS,2:流式)")
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- return false
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- end
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- audio_play_param.type = playConfigs.type
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-
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- -- 处理优先级
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- if playConfigs.priority ~= nil then
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- if check_param(playConfigs.priority, "number", "priority") then
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- if playConfigs.priority > audio_play_param.priority then
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- log.error("是否完成播放",audio.isEnd(MULTIMEDIA_ID))
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- if not audio.isEnd(MULTIMEDIA_ID) then
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- if audio.play(MULTIMEDIA_ID) ~= true then
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- return false
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- end
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- sys.waitUntil(EX_MSG_PLAY_DONE)
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- end
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- audio_play_param.priority = playConfigs.priority
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- end
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- else
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- return false
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- end
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- end
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-
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- -- 处理不同播放类型
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- local play_type = audio_play_param.type
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- if play_type == 0 then -- 文件播放
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- if not playConfigs.content then
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- log.error("文件播放需要指定content(文件路径或路径表)")
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- return false
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- end
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-
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- local content_type = type(playConfigs.content)
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- if content_type == "table" then
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- for _, path in ipairs(playConfigs.content) do
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- if type(path) ~= "string" then
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- log.error("播放列表元素必须为字符串路径")
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- return false
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- end
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- end
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- elseif content_type ~= "string" then
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- log.error("文件播放content必须为字符串或路径表")
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- return false
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- end
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-
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- audio_play_param.content = playConfigs.content
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- if audio.play(MULTIMEDIA_ID, audio_play_param.content) ~= true then
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- return false
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- end
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-
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- elseif play_type == 1 then -- TTS播放
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- if not audio.tts then
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- log.error("本固件不支持TTS,请更换支持TTS 的固件")
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- return false
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- end
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- if not check_param(playConfigs.content, "string", "content") then
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- log.error("TTS播放content必须为字符串")
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- return false
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- end
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- audio_play_param.content = playConfigs.content
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- if audio.tts(MULTIMEDIA_ID, audio_play_param.content) ~= true then
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- return false
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- end
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-
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- elseif play_type == 2 then -- 流式播放
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- if not check_param(playConfigs.sampling_rate, "number", "sampling_rate") then
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- return false
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- end
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- if not check_param(playConfigs.sampling_depth, "number", "sampling_depth") then
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- return false
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- end
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-
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- audio_play_param.content = playConfigs.content
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- audio_play_param.sampling_rate = playConfigs.sampling_rate
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- audio_play_param.sampling_depth = playConfigs.sampling_depth
|
|
|
-
|
|
|
- if playConfigs.signed_or_unsigned ~= nil then
|
|
|
- audio_play_param.signed_or_unsigned = playConfigs.signed_or_unsigned
|
|
|
- end
|
|
|
-
|
|
|
- audio.start(
|
|
|
- MULTIMEDIA_ID,
|
|
|
- audio.PCM,
|
|
|
- 1,
|
|
|
- playConfigs.sampling_rate,
|
|
|
- playConfigs.sampling_depth,
|
|
|
- audio_play_param.signed_or_unsigned
|
|
|
- )
|
|
|
- -- 发送初始数据
|
|
|
- if audio.write(MULTIMEDIA_ID, string.rep("\0", 512)) ~= true then
|
|
|
- return false
|
|
|
- end
|
|
|
- end
|
|
|
-
|
|
|
- -- 处理回调函数
|
|
|
- if playConfigs.cbfnc ~= nil then
|
|
|
- if check_param(playConfigs.cbfnc, "function", "cbfnc") then
|
|
|
- audio_play_param.cbfnc = playConfigs.cbfnc
|
|
|
- else
|
|
|
- return false
|
|
|
- end
|
|
|
- else
|
|
|
- audio_play_param.cbfnc = nil
|
|
|
- end
|
|
|
- return true
|
|
|
-end
|
|
|
-
|
|
|
--- 模块接口：流式播放数据写入
|
|
|
-function exaudio.play_stream_write(data)
|
|
|
- audio_play_queue_push(data)
|
|
|
- return true
|
|
|
-end
|
|
|
-
|
|
|
--- 模块接口：停止播放
|
|
|
-function exaudio.play_stop()
|
|
|
- return audio.play(MULTIMEDIA_ID)
|
|
|
-end
|
|
|
-
|
|
|
--- 模块接口：检查播放是否结束
|
|
|
-function exaudio.is_end()
|
|
|
- return audio.isEnd(MULTIMEDIA_ID)
|
|
|
-end
|
|
|
-
|
|
|
--- 模块接口：获取错误信息
|
|
|
-function exaudio.get_error()
|
|
|
- return audio.getError(MULTIMEDIA_ID)
|
|
|
-end
|
|
|
-
|
|
|
--- 模块接口：开始录音
|
|
|
-function exaudio.record_start(recodConfigs)
|
|
|
- if not recodConfigs or type(recodConfigs) ~= "table" then
|
|
|
- log.error("录音配置必须为table类型")
|
|
|
- return false
|
|
|
- end
|
|
|
- -- 检查录音格式
|
|
|
- if recodConfigs.format == nil or type(recodConfigs.format) ~= "number" or recodConfigs.format > 5 then
|
|
|
- log.error("请指定正确的录音格式")
|
|
|
- return false
|
|
|
- end
|
|
|
- audio_record_param.format = recodConfigs.format
|
|
|
-
|
|
|
- -- 处理录音时间
|
|
|
- if recodConfigs.time ~= nil then
|
|
|
- if check_param(recodConfigs.time, "number", "time") then
|
|
|
- audio_record_param.time = recodConfigs.time
|
|
|
- else
|
|
|
- return false
|
|
|
- end
|
|
|
- else
|
|
|
- audio_record_param.time = 0
|
|
|
- end
|
|
|
-
|
|
|
- -- 处理存储路径/回调
|
|
|
- if not recodConfigs.path then
|
|
|
- log.error("必须指定录音路径或流式回调函数")
|
|
|
- return false
|
|
|
- end
|
|
|
- audio_record_param.path = recodConfigs.path
|
|
|
-
|
|
|
- -- 转换录音格式
|
|
|
- local recod_format, amr_quailty
|
|
|
- if audio_record_param.format == exaudio.AMR_NB then
|
|
|
- recod_format = audio.AMR_NB
|
|
|
- amr_quailty = 7
|
|
|
- elseif audio_record_param.format == exaudio.AMR_WB then
|
|
|
- recod_format = audio.AMR_WB
|
|
|
- amr_quailty = 8
|
|
|
- elseif audio_record_param.format == exaudio.PCM_8000 then
|
|
|
- recod_format = 8000
|
|
|
- elseif audio_record_param.format == exaudio.PCM_16000 then
|
|
|
- recod_format = 16000
|
|
|
- elseif audio_record_param.format == exaudio.PCM_24000 then
|
|
|
- recod_format = 24000
|
|
|
- elseif audio_record_param.format == exaudio.PCM_32000 then
|
|
|
- recod_format = 32000
|
|
|
- end
|
|
|
-
|
|
|
- -- 处理回调函数
|
|
|
- if recodConfigs.cbfnc ~= nil then
|
|
|
- if check_param(recodConfigs.cbfnc, "function", "cbfnc") then
|
|
|
- audio_record_param.cbfnc = recodConfigs.cbfnc
|
|
|
- else
|
|
|
- return false
|
|
|
- end
|
|
|
- else
|
|
|
- audio_record_param.cbfnc = nil
|
|
|
- end
|
|
|
- -- 开始录音
|
|
|
- local path_type = type(audio_record_param.path)
|
|
|
- if path_type == "string" then
|
|
|
- return audio.record(
|
|
|
- MULTIMEDIA_ID,
|
|
|
- recod_format,
|
|
|
- audio_record_param.time,
|
|
|
- amr_quailty,
|
|
|
- audio_record_param.path
|
|
|
- )
|
|
|
- elseif path_type == "function" then
|
|
|
- -- 初始化缓冲区
|
|
|
- if not pcm_buff0 or not pcm_buff1 then
|
|
|
- pcm_buff0 = zbuff.create(16000)
|
|
|
- pcm_buff1 = zbuff.create(16000)
|
|
|
- end
|
|
|
- return audio.record(
|
|
|
- MULTIMEDIA_ID,
|
|
|
- recod_format,
|
|
|
- audio_record_param.time,
|
|
|
- amr_quailty,
|
|
|
- nil,
|
|
|
- 3,
|
|
|
- pcm_buff0,
|
|
|
- pcm_buff1
|
|
|
- )
|
|
|
- end
|
|
|
- log.error("录音路径必须为字符串或函数")
|
|
|
- return false
|
|
|
-end
|
|
|
-
|
|
|
--- 模块接口：停止录音
|
|
|
-function exaudio.record_stop()
|
|
|
- return audio.recordStop(MULTIMEDIA_ID)
|
|
|
-end
|
|
|
-
|
|
|
--- 模块接口：设置音量
|
|
|
-function exaudio.vol(play_volume)
|
|
|
- if check_param(play_volume, "number", "音量值") then
|
|
|
- return audio.vol(MULTIMEDIA_ID, play_volume)
|
|
|
- end
|
|
|
- return false
|
|
|
-end
|
|
|
-
|
|
|
--- 模块接口：设置麦克风音量
|
|
|
-function exaudio.mic_vol(record_volume)
|
|
|
- if check_param(record_volume, "number", "麦克风音量值") then
|
|
|
- return audio.micVol(MULTIMEDIA_ID, record_volume)
|
|
|
- end
|
|
|
- return false
|
|
|
-end
|
|
|
-
|
|
|
-return exaudio
|
zhutianhua