huxi
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
#ifndef _AUDIO_DVOL_H_
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#define _AUDIO_DVOL_H_
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#include "generic/typedef.h"
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#include "os/os_type.h"
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#include "os/os_api.h"
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#include "generic/list.h"
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#define DVOL_RESOLUTION 14
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#define DVOL_MAX 16384
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#define DVOL_MAX_FLOAT 16384.0f
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#define BG_DVOL_FADE_ENABLE 0 /*多路声音叠加，背景声音自动淡出小声*/
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#define DIGITAL_VOLUME_LEVEL_MAX 200 //默认的音量等级限制设成200
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/*Digital Volume Channel*/
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#define MUSIC_DVOL 0b00001
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#define CALL_DVOL 0b00010
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#define TONE_DVOL 0b00100
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#define RING_DVOL 0b01000
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#define KEY_TONE_DVOL 0b10000
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/*Digital Volume Fade Step*/
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#define MUSIC_DVOL_FS 2
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#define CALL_DVOL_FS 4
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#define TONE_DVOL_FS 30
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/*Digital Volume Max Level*/
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#define MUSIC_DVOL_MAX 16
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#define CALL_DVOL_MAX 15
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#define TONE_DVOL_MAX 16
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struct audio_vol_params {
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u16 vol;
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u16 vol_max;
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u16 fade_step;
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s16 vol_limit;
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u8 bit_wide;
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};
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typedef struct {
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u8 toggle; /*数字音量开关*/
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u8 fade; /*淡入淡出标志*/
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u16 vol; /*淡入淡出当前音量(level)*/
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u16 vol_max; /*淡入淡出最大音量(level)*/
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s16 vol_limit; /*最大数字音量限制*/
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s16 vol_fade; /*淡入淡出对应的起始音量*/
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#if BG_DVOL_FADE_ENABLE
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s16 vol_bk; /*后台自动淡出前音量值*/
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struct list_head entry;
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#endif/*BG_DVOL_FADE_ENABLE*/
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volatile s16 vol_target; /*淡入淡出对应的目标音量*/
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volatile u16 fade_step; /*淡入淡出的步进*/
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float cfg_vol_min; /*最小音量的分贝数*/
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float cfg_vol_max; /*最小音量的分贝数*/
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u16 cfg_level_max; /*最大音量等级*/
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u8 vol_table_custom; /*是否使用外部工具读取的音量表*/
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u8 vol_table_default; /*是否使用默认的音量表*/
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u8 mute_en; /*是否将数据设成0*/
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u8 bit_wide; /*数据位宽*/
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float *vol_table; /*自定义音量表*/
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} dvol_handle;
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int audio_digital_vol_init(u16 *vol_table, u16 vol_max);
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void audio_digital_vol_bg_fade(u8 fade_out);
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dvol_handle *audio_digital_vol_open(struct audio_vol_params params);
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void audio_digital_vol_close(dvol_handle *dvol);
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void audio_digital_vol_set(dvol_handle *dvol, u16 vol);
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void audio_digital_vol_mute_set(dvol_handle *dvol, u8 mute_en);
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int audio_digital_vol_run(dvol_handle *dvol, void *data, u32 len);
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void audio_digital_vol_reset_fade(dvol_handle *dvol);
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#endif/*_AUDIO_DVOL_H_*/
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