130 lines
4.0 KiB
C
130 lines
4.0 KiB
C
#include "effect_linein.h"
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#include "stream_entry.h"
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#include "application/audio_dig_vol.h"
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#include "system/includes.h"
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#include "audio_config.h"
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#include "audio_enc.h"
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#include "audio_dec.h"
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#include "audio_adc.h"
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#include "audio_config.h"
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#include "media/includes.h"
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struct __effect_linein {
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struct audio_adc_ch ch;
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struct audio_adc_output_hdl output;
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s16 *adc_buf;
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u16 adc_buf_len;
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void *dvol;
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struct __stream_entry *stream;
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};
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//adc出数顺序 lineinL lineinR mic
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//mic通路数据源是单声道，用reverb会变双声道，用echo声道数不变
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int effect_linein_mix_callback(void *priv, struct audio_data_frame *in)
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{
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struct __effect_linein *linein = (struct __effect_linein *)priv;
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s16 *data = in->data;
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u32 len = in->data_len;
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if (linein && linein->adc_buf) {
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#if SYS_DIGVOL_GROUP_EN
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if (linein->dvol) {
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audio_dig_vol_run(linein->dvol, linein->adc_buf, len);
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}
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#endif/*SYS_DIGVOL_GROUP_EN*/
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int i, j;
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int points = len >> 1;
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if (in->channel == 2) {
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for (i = 0; i < points; i++) {
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data[i] = data_sat_s16(data[i] + linein->adc_buf[i]);//声道数一致时，lineinLR与过了reverb后混响通路数据点数一致
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}
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} else {
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//混响通路是单声道时，lineinLR声道点数是mic通路数据的两倍
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s16 *tmp = linein->adc_buf;
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for (i = 0, j = 0; i < points * 2; i += 2, j++) {
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tmp[j] = data_sat_s16(tmp[i] + tmp[i + 1]); //将linein LR合成 单声道
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}
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for (i = 0; i < points; i++) {
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data[i] = data_sat_s16(data[i] + linein->adc_buf[i]);//将合成单声道后的linein数据，叠加到混响通路
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}
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}
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}
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return len;
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}
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static void linein_adc_irq_output(void *priv, s16 *data, int len)
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{
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struct __effect_linein *linein = (struct __effect_linein *)priv;
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if (linein) {
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linein->adc_buf = data;
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linein->adc_buf_len = len;
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}
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}
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struct __effect_linein *effect_linein_open(void)
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{
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struct __effect_linein *linein = zalloc(sizeof(struct __effect_linein));
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if (linein) {
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linein->stream = stream_entry_open(linein, effect_linein_mix_callback, 0);
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if (linein->stream) {
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if (audio_linein_open(&linein->ch, MIC_EFFECT_SAMPLERATE, 3) == 0) {
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#if SYS_DIGVOL_GROUP_EN
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audio_dig_vol_param linein_digvol_param = {
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.vol_start = 0,
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.vol_max = 100,
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.ch_total = 2,
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.fade_en = 1,
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.fade_points_step = 5,
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.fade_gain_step = 10,
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.vol_list = NULL,
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};
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linein->dvol = audio_dig_vol_open(&linein_digvol_param);
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if (linein->dvol) {
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audio_dig_vol_group_add(sys_digvol_group, linein->dvol, "music_linein");
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}
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#endif/*SYS_DIGVOL_GROUP_EN*/
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linein->output.handler = linein_adc_irq_output;
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linein->output.priv = linein;
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audio_linein_add_output(&linein->output);
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audio_linein_start(&linein->ch);
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printf("audio_linein_open ok!!!\n ");
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return linein;
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}
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} else {
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effect_linein_close(&linein);
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return NULL;
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}
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}
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return NULL;
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}
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void effect_linein_close(struct __effect_linein **hdl)
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{
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if (hdl && (*hdl)) {
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struct __effect_linein *linein = *hdl;
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#if SYS_DIGVOL_GROUP_EN
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sys_digvol_group_ch_close("music_linein");
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#endif/*SYS_DIGVOL_GROUP_EN*/
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audio_linein_close(&linein->ch, &linein->output);
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stream_entry_close(&linein->stream);
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local_irq_disable();
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free(linein);
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*hdl = NULL;
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local_irq_enable();
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}
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}
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struct audio_stream_entry *effect_linein_get_stream_entry(struct __effect_linein *hdl)
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{
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if (hdl && hdl->stream) {
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return &(hdl->stream->entry);
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}
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return NULL;
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}
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