KT24-1110_65E-HA-651B/cpu/br25/audio_enc/audio_mic_codec.c

#include "asm/includes.h"
#include "media/includes.h"
#include "system/includes.h"
#include "asm/audio_src.h"
#include "audio_enc.h"
#include "app_main.h"
#include "btstack/avctp_user.h"
#include "app_config.h"
#ifndef CONFIG_LITE_AUDIO
#include "aec_user.h"
#endif/*CONFIG_LITE_AUDIO*/

#if (TCFG_ENC_OPUS_ENABLE) || (TCFG_ENC_SPEEX_ENABLE)

extern struct audio_encoder_task *encode_task;
//static struct audio_encoder_task *encode_task = NULL;

#define ENC_ADC_BUF_NUM        (2)
#define ENC_ADC_IRQ_POINTS     (320)
#define ENC_ADC_BUFS_SIZE      (ENC_ADC_BUF_NUM * ENC_ADC_IRQ_POINTS)

#define MIC_USE_MIC_CHANNEL    (1)
#define MIC_ENC_IN_SIZE		(ENC_ADC_IRQ_POINTS * 2)
#define MIC_ENC_OUT_SIZE       (ENC_ADC_IRQ_POINTS)

struct mic_enc_hdl {
    struct audio_encoder encoder;
    OS_SEM pcm_frame_sem;
    u8 output_frame[MIC_ENC_OUT_SIZE];
    u8  pcm_frame[MIC_ENC_IN_SIZE];
    u8 frame_size;
    u8 in_cbuf_buf[MIC_ENC_IN_SIZE * 4];
    cbuffer_t pcm_in_cbuf;
    int (*mic_output)(void *priv, void *buf, int len);
#if mic_ENC_PACK_ENABLE
    u16 cp_type;
    u16 packet_head_sn;
#endif
#if MIC_USE_MIC_CHANNEL
    struct audio_adc_output_hdl adc_output;
    struct adc_mic_ch mic_ch;
    s16 adc_buf[ENC_ADC_BUFS_SIZE];    //align 4Bytes
#endif
};

static struct mic_enc_hdl *mic_enc = NULL;

static void mic_enc_output_func_register(int (*output_func)(void *priv, void *buf, int len))
{
    if (mic_enc) {
        mic_enc->mic_output = output_func;
    }
}

void mic_enc_resume(void)
{
    if (mic_enc) {
        os_sem_post(&mic_enc->pcm_frame_sem);
    }
}

static int mic_enc_pcm_get(struct audio_encoder *encoder, s16 **frame, u16 frame_len)
{
    int pcm_len = 0;
    if (mic_enc == NULL) {
        r_printf("mic_enc NULL\n");
        return 0;
    }


    /* putchar('!'); */
    if ((&mic_enc->pcm_in_cbuf)->data_len < frame_len) {
        /* putchar('#'); */
        os_sem_set(&mic_enc->pcm_frame_sem, 0);
        os_sem_pend(&mic_enc->pcm_frame_sem, 5);
        if (mic_enc == NULL) {
            printf("mic_enc is NULL\n");
            return 0;
        }
    }

    pcm_len = cbuf_read(&mic_enc->pcm_in_cbuf, mic_enc->pcm_frame, frame_len);
    if (pcm_len != frame_len) {
        putchar('L');
    }
    /* putchar('D'); */

    *frame = mic_enc->pcm_frame;
    return pcm_len;
}

static void mic_enc_pcm_put(struct audio_encoder *encoder, s16 *frame)
{
}

static const struct audio_enc_input mic_enc_input = {
    .fget = mic_enc_pcm_get,
    .fput = mic_enc_pcm_put,
};

static int mic_enc_probe_handler(struct audio_encoder *encoder)
{
    return 0;
}




static int mic_enc_output_handler(struct audio_encoder *encoder, u8 *frame, int len)
{
    if (encoder == NULL) {
        r_printf("encoder NULL");
    }
    wdt_clear();
    /* printf("mic frame len:%d \n",len); */
    if (mic_enc && mic_enc->mic_output) {
        mic_enc->mic_output(NULL, frame, len);
    }
    /* put_buf(frame, 16); */
    return len;
}

const static struct audio_enc_handler mic_enc_handler = {
    .enc_probe = mic_enc_probe_handler,
    .enc_output = mic_enc_output_handler,
};

static void mic_enc_event_handler(struct audio_decoder *decoder, int argc, int *argv)
{
    printf("mic_enc_event_handler:0x%x,%d\n", argv[0], argv[0]);
    switch (argv[0]) {
    case AUDIO_ENC_EVENT_END:
        puts("AUDIO_ENC_EVENT_END\n");
        break;
    }
}



static void adc_mic_output_handler(void *priv, s16 *data, int len)
{
    if (mic_enc) {
        u16 wlen = cbuf_write(&mic_enc->pcm_in_cbuf, data, len);
        if (wlen != len) {
            putchar('@');
        }
        audio_encoder_resume(&mic_enc->encoder);
        mic_enc_resume();
    }
}



#define HIGHT_COMPLEX		0
#define LOW_COMPLEX			(BIT(4))


extern struct audio_adc_hdl adc_hdl;
int audio_mic_enc_open(int (*mic_output)(void *priv, void *buf, int len), u32 code_type, u8 ai_type)
{
    int err;
    struct audio_fmt fmt;

    switch (code_type) {
    case AUDIO_CODING_OPUS:
        //1. quality:bitrate     0:16kbps    1:32kbps    2:64kbps
        //   quality: MSB_2:(bit7_bit6)     format_mode    //0:百度_无头.                   1:酷狗_eng+range.
        //   quality:LMSB_2:(bit5_bit4)     low_complexity //0:高复杂度,高质量.兼容之前库.  1:低复杂度,低质量.
        //2. sample_rate         sample_rate=16k         ignore
        fmt.quality = 0 | ai_type /*| LOW_COMPLEX*/;
        fmt.sample_rate = 16000;
        fmt.coding_type = AUDIO_CODING_OPUS;
        break;
    case AUDIO_CODING_SPEEX:
        fmt.quality = 5;
        fmt.complexity = 2;
        fmt.sample_rate = 16000;
        fmt.coding_type = AUDIO_CODING_SPEEX;
        break;
    default:
        printf("do not support this type !!!\n");
        return -1;
        break;
    }

    audio_encoder_task_open();
    /* if (!encode_task) { */
    /* encode_task = zalloc(sizeof(*encode_task)); */
    /* if (!encode_task) { */
    /* printf("encode_task NULL !!!\n"); */
    /* } */
    /* audio_encoder_task_create(encode_task, "audio_enc"); */
    /* } */
    if (!mic_enc) {
        mic_enc = zalloc(sizeof(*mic_enc));
        if (!mic_enc) {
            printf("mic_enc NULL !!!\n");
        }
        memset(mic_enc, 0x00, sizeof(*mic_enc));
    }

    mic_enc_output_func_register(mic_output);
    cbuf_init(&mic_enc->pcm_in_cbuf, mic_enc->in_cbuf_buf, MIC_ENC_IN_SIZE * 4);
    os_sem_create(&mic_enc->pcm_frame_sem, 0);
    audio_encoder_open(&mic_enc->encoder, &mic_enc_input, encode_task);
    audio_encoder_set_handler(&mic_enc->encoder, &mic_enc_handler);
    audio_encoder_set_fmt(&mic_enc->encoder, &fmt);
    audio_encoder_set_event_handler(&mic_enc->encoder, mic_enc_event_handler, 0);
    audio_encoder_set_output_buffs(&mic_enc->encoder, mic_enc->output_frame,
                                   sizeof(mic_enc->output_frame), 1);
    int start_err = audio_encoder_start(&mic_enc->encoder);

#if MIC_USE_MIC_CHANNEL
    fmt.sample_rate = 16000;
    audio_adc_mic_open(&mic_enc->mic_ch, AUDIO_ADC_MIC_CH, &adc_hdl);
    audio_adc_mic_set_sample_rate(&mic_enc->mic_ch, fmt.sample_rate);
    app_var.aec_mic_gain = 15;
    printf(">>>>>>>>>mic gain:%d \n", app_var.aec_mic_gain);
    audio_adc_mic_set_gain(&mic_enc->mic_ch, app_var.aec_mic_gain);
    audio_adc_mic_set_buffs(&mic_enc->mic_ch, mic_enc->adc_buf,
                            ENC_ADC_IRQ_POINTS * 2, ENC_ADC_BUF_NUM);
    mic_enc->adc_output.handler = adc_mic_output_handler;
    audio_adc_add_output_handler(&adc_hdl, &mic_enc->adc_output);


    //app_audio_output_samplerate_set(44100);
    //app_audio_output_start();
    audio_adc_mic_start(&mic_enc->mic_ch);
#endif

    printf("mic_enc_open ok %d\n", start_err);


    return 0;
}

int audio_mic_enc_close()
{
    if (!mic_enc) {
        return -1;
    }
    printf("audio_mic_enc_close\n");
#if MIC_USE_MIC_CHANNEL
    audio_adc_mic_close(&mic_enc->mic_ch);
    audio_adc_del_output_handler(&adc_hdl, &mic_enc->adc_output);
#endif
    mic_enc_resume();
    audio_encoder_close(&mic_enc->encoder);

    audio_encoder_task_close();
    /* if (encode_task) { */
    /* audio_encoder_task_del(encode_task); */
    /* free(encode_task); */
    /* encode_task = NULL; */
    /* } */

    free(mic_enc);
    mic_enc = NULL;

    printf("audio_mic_enc_close end\n");
    return 0;
}

#endif