555 lines
15 KiB
C
555 lines
15 KiB
C
#include "asm/includes.h"
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#include "media/includes.h"
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#include "system/includes.h"
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#include "aec_user.h"
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#include "asm/audio_src.h"
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#include "audio_enc.h"
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#include "app_main.h"
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#include "btstack/avctp_user.h"
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#include "audio_digital_vol.h"
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#include "audio_sbc_codec.h"
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#include "clock_cfg.h"
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extern struct audio_encoder_task *encode_task;
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//static struct audio_encoder_task *encode_task = NULL;
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#define SBC_ENC_WRITING BIT(1)
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#define SBC_ENC_START BIT(2)
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#define SBC_ENC_WAKEUP_SEND BIT(3) /*减少唤醒问题*/
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#define SBC_ENC_PCM_MUTE_DATA BIT(4) /*发一包静音数据*/
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static u8 sbc_buf_flag = 0;
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#define ESCO_ADC_BUF_NUM 2
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#define ESCO_ADC_IRQ_POINTS 256
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#define ESCO_ADC_BUFS_SIZE (ESCO_ADC_BUF_NUM * ESCO_ADC_IRQ_POINTS)
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#define SBC_USE_MIC_CHANNEL 0
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#define SBC_ENC_PACK_ENABLE 0 /*sbc数据包封装*/
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#define SBC_ENC_IN_SIZE 512
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#define SBC_ENC_OUT_SIZE 256
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#define SBC_ENC_IN_CBUF_SIZE (SBC_ENC_IN_SIZE * 8)
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#define SBC_ENC_OUT_CBUF_SIZE (SBC_ENC_OUT_SIZE * 8)
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struct sbc_enc_hdl {
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struct audio_encoder encoder;
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OS_SEM pcm_frame_sem;
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u8 output_frame[SBC_ENC_OUT_SIZE];
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u8 pcm_frame[SBC_ENC_IN_SIZE];
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u8 frame_size;
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u8 backup_digital_vol;
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cbuffer_t output_cbuf;
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u8 out_cbuf_buf[SBC_ENC_OUT_CBUF_SIZE];
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cbuffer_t pcm_in_cbuf;/*要注意要跟DAC的buf大小一致*/
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u8 in_cbuf_buf[SBC_ENC_IN_CBUF_SIZE];
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#if SBC_ENC_PACK_ENABLE
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u16 cp_type;
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u16 packet_head_sn;
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#endif
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int mute_data_send_timer;
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#if SBC_USE_MIC_CHANNEL
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struct audio_adc_output_hdl adc_output;
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struct adc_mic_ch mic_ch;
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s16 adc_buf[ESCO_ADC_BUFS_SIZE]; //align 4Bytes
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#endif
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/* dvol_handle *dvol; */
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};
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static struct sbc_enc_hdl *sbc_enc = NULL;
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__attribute__((weak))
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void audio_sbc_enc_inbuf_resume(void)
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{
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;
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}
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__attribute__((weak))
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void audio_sbc_enc_open_exit(void)
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{
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;
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}
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__attribute__((weak))
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void audio_sbc_enc_close_enter(void)
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{
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;
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}
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static void sbc_send_mute_data()
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{
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sbc_buf_flag |= SBC_ENC_PCM_MUTE_DATA;
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audio_encoder_resume(&sbc_enc->encoder);
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}
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static int sbc_enc_pcm_get(struct audio_encoder *encoder, s16 **frame, u16 frame_len)
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{
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u8 read_flag = 1;
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int pcm_len = 0;
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if (encoder == NULL) {
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r_printf("encoder NULL");
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}
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struct sbc_enc_hdl *enc = container_of(encoder, struct sbc_enc_hdl, encoder);
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if (enc == NULL) {
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r_printf("enc NULL");
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}
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if (cbuf_get_data_size(&enc->pcm_in_cbuf) < SBC_ENC_IN_SIZE) {
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if (!(sbc_buf_flag & SBC_ENC_PCM_MUTE_DATA)) {
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return 0;
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} else {
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read_flag = 0;
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}
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}
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if (read_flag) {
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pcm_len = cbuf_read(&enc->pcm_in_cbuf, enc->pcm_frame, SBC_ENC_IN_SIZE);
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#if (AUDIO_OUTPUT_WAY == AUDIO_OUTPUT_WAY_BT)
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audio_stream_resume(&sbc_emitter.entry);
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#endif
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} else {
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putchar('h');
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memset(enc->pcm_frame, 0, SBC_ENC_IN_SIZE);
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pcm_len = SBC_ENC_IN_SIZE;
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}
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if (pcm_len != SBC_ENC_IN_SIZE) {
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putchar('L');
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}
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*frame = enc->pcm_frame;
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return pcm_len;
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}
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static void sbc_enc_pcm_put(struct audio_encoder *encoder, s16 *frame)
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{
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}
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static const struct audio_enc_input sbc_enc_input = {
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.fget = sbc_enc_pcm_get,
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.fput = sbc_enc_pcm_put,
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};
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static int sbc_enc_probe_handler(struct audio_encoder *encoder)
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{
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return 0;
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}
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#if SBC_ENC_PACK_ENABLE
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/*
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struct Media_Playload_Header {
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u8 Version: 2;
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u8 Padding: 1;
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u8 Extension: 1;
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u8 CSRC_Count: 4;
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u8 Marker: 1;
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u8 PayloadType: 7;
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u16 SequenceNumber;
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u32 TimeStamp;
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u32 SSRC;
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};
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SBC_FRAME_SUM defined within sbc_packet_head_buf used for Media Playload parameter:Number of Frames
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*/
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#define SBC_PACKET_HEADER_LEN (14) /*包头Max Length*/
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#define SBC_FRAME_SUM (4) /*一包多少帧*/
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static unsigned char sbc_packet_head_buf[SBC_PACKET_HEADER_LEN] = {
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0x80, 0x60, //Version:2 Playload Type:0x60
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0x00, 0x64, //Sequencenumber
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0x00, 0x00, 0x03, 0x20, //Timestamp
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0x00, 0x00, 0x00, 0x00 //Synchronization Source
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//SBC_FRAME_SUM //defined for Media Payload
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};
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void sbc_enc_packet_pack(struct sbc_enc_hdl *hdl)
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{
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unsigned int TS; /*TimeStamp*/
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/*SequenceNumber*/
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hdl->packet_head_sn++;
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/*Timestamp*/
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TS = hdl->packet_head_sn * (128 * SBC_FRAME_SUM);
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sbc_packet_head_buf[2] = hdl->packet_head_sn >> 8;
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sbc_packet_head_buf[3] = hdl->packet_head_sn & 0xff;
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sbc_packet_head_buf[4] = TS >> 24;
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sbc_packet_head_buf[5] = (TS >> 16) & 0xff;
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sbc_packet_head_buf[6] = (TS >> 8) & 0xff;
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sbc_packet_head_buf[7] = (TS) & 0xff;
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if (hdl->cp_type == 0x0002) {
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/*
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*Content Protection Header
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*L-bit :bit0
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*Cp-bit:bit1
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*RFA :bit2 to bit7
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*/
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sbc_packet_head_buf[12] = 0;
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sbc_packet_head_buf[13] = SBC_FRAME_SUM;
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} else {
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sbc_packet_head_buf[12] = SBC_FRAME_SUM;
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}
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}
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#endif/*SBC_ENC_PACK_ENABLE*/
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static int sbc_enc_output_handler(struct audio_encoder *encoder, u8 *frame, int len)
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{
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if (encoder == NULL) {
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r_printf("encoder NULL");
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}
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struct sbc_enc_hdl *enc = container_of(encoder, struct sbc_enc_hdl, encoder);
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enc->frame_size = len;
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u16 wlen = cbuf_write(&enc->output_cbuf, frame, len);
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if (wlen != len) {
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putchar('F');
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return len;
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}
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//printf("sbc_enc out,frame:%x,out:%d[0x%x]\n", frame, len, enc->frame_size);
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if (cbuf_get_data_size(&sbc_enc->output_cbuf) >= enc->frame_size * 5) {
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//达到基本的数据量，唤醒蓝牙发数
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user_send_cmd_prepare(USER_CTRL_CMD_RESUME_STACK, 0, NULL);
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}
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return len;
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}
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const static struct audio_enc_handler sbc_enc_handler = {
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.enc_probe = sbc_enc_probe_handler,
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.enc_output = sbc_enc_output_handler,
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};
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int a2dp_sbc_encoder_get_data(u8 *packet, u16 buf_len, int *frame_size)
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{
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if (sbc_enc == NULL) {
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return 0;
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}
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if (cbuf_get_data_size(&sbc_enc->output_cbuf) < buf_len) {
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return 0;
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}
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int debug_frame_size = sbc_enc->frame_size;
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int number = buf_len / debug_frame_size; /*取整数包*/
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*frame_size = debug_frame_size;
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u16 rlen = cbuf_read(&sbc_enc->output_cbuf, packet, *frame_size * number);
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if (rlen == 0) {
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putchar('N');
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}
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return rlen;
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}
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static void sbc_enc_event_handler(struct audio_decoder *decoder, int argc, int *argv)
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{
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printf("sbc_enc_event_handler:0x%x,%d\n", argv[0], argv[0]);
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switch (argv[0]) {
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case AUDIO_ENC_EVENT_END:
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puts("AUDIO_ENC_EVENT_END\n");
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break;
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}
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}
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#include "sbc_enc.h"
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sbc_t sbc_param = {
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.frequency = SBC_FREQ_44100,
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.blocks = SBC_BLK_16,
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.subbands = SBC_SB_8,
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.mode = SBC_MODE_STEREO,
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.allocation = 0,
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.endian = SBC_LE,
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.bitpool = 53,
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};
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int audio_sbc_enc_config(void *cfg)
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{
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sbc_t *p = cfg;
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if (p) {
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printf("sbc_enc_param update:\n");
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printf("frequency:%d\n", p->frequency);
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printf("blocks:%d\n", p->blocks);
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printf("subbands:%d\n", p->subbands);
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printf("mode:%d\n", p->mode);
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printf("allocation:%d\n", p->allocation);
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printf("endian:%d\n", p->endian);
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printf("bitpool:%d\n", p->bitpool);
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}
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return 0;
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}
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int audio_sbc_enc_check_empty_len(void)
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{
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if (!(sbc_buf_flag & SBC_ENC_START)) {
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return 0;
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}
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if (!sbc_enc) {
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return 0;
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}
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return sbc_enc->pcm_in_cbuf.total_len - sbc_enc->pcm_in_cbuf.data_len;
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}
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int audio_sbc_enc_write(s16 *data, int len)
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{
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if (!(sbc_buf_flag & SBC_ENC_START)) {
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return 0;
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}
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if (!sbc_enc) {
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return 0;
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}
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sbc_buf_flag |= SBC_ENC_WRITING;
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#if 0
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u16 wlen = cbuf_write(&sbc_enc->pcm_in_cbuf, data, len);
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if (wlen != len) {
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putchar('@');
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}
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#else
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int wlen = 0;
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int remain_len = len;
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while (remain_len) {
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wlen = 0;
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void *obuf = cbuf_write_alloc(&sbc_enc->pcm_in_cbuf, &wlen);
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if (!wlen) {
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break;
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}
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if (wlen > remain_len) {
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wlen = remain_len;
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}
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memcpy(obuf, data, wlen);
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/* audio_digital_vol_run(sbc_enc->dvol, obuf, wlen); */
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cbuf_write_updata(&sbc_enc->pcm_in_cbuf, wlen);
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remain_len -= wlen;
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data += wlen / 2;
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};
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wlen = len - remain_len;
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#endif
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if (cbuf_get_data_size(&sbc_enc->pcm_in_cbuf) >= SBC_ENC_IN_SIZE) {
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audio_encoder_resume(&sbc_enc->encoder);
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}
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sbc_buf_flag &= ~SBC_ENC_WRITING;
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return wlen;
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}
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#if SBC_USE_MIC_CHANNEL
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s16 temp_data[ESCO_ADC_IRQ_POINTS * 2];
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extern struct audio_adc_hdl adc_hdl;
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static void adc_mic_output_handler(void *priv, s16 *data, int len)
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{
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u16 points = len >> 1;
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if (!(sbc_buf_flag & SBC_ENC_START)) {
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return 0;
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}
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if (sbc_enc) {
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//单变双
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for (int i = 0; i < points ; i++) {
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temp_data[i * 2] = data[i];
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temp_data[i * 2 + 1] = data[i];
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}
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//app_audio_output_write(temp_data, len*2);
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//memset(temp_data, 0 , sizeof(temp_data));
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audio_sbc_enc_write(temp_data, len * 2);
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}
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}
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#endif
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int audio_sbc_enc_open()
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{
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int err;
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struct audio_fmt fmt;
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u16 frame_len = 512;
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if (encode_task) {
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return -1;
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}
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printf("sbc_enc_open,frame_len:%d\n", frame_len);
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sbc_buf_flag &= ~SBC_ENC_START;
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fmt.channel = 1;
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fmt.frame_len = frame_len;
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fmt.coding_type = AUDIO_CODING_SBC;
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fmt.priv = &sbc_param;
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audio_encoder_task_open();
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if (!sbc_enc) {
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sbc_enc = zalloc(sizeof(*sbc_enc));
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}
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printf("init vol:%d \n", app_var.music_volume);
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/* sbc_enc->dvol = audio_digital_vol_open(app_var.music_volume, 30, 7); */
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cbuf_init(&sbc_enc->output_cbuf, sbc_enc->out_cbuf_buf, SBC_ENC_OUT_CBUF_SIZE);
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cbuf_init(&sbc_enc->pcm_in_cbuf, sbc_enc->in_cbuf_buf, SBC_ENC_IN_CBUF_SIZE);
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os_sem_create(&sbc_enc->pcm_frame_sem, 0);
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audio_encoder_open(&sbc_enc->encoder, &sbc_enc_input, encode_task);
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audio_encoder_set_handler(&sbc_enc->encoder, &sbc_enc_handler);
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audio_encoder_set_fmt(&sbc_enc->encoder, &fmt);
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audio_encoder_set_event_handler(&sbc_enc->encoder, sbc_enc_event_handler, 0);
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audio_encoder_set_output_buffs(&sbc_enc->encoder, sbc_enc->output_frame,
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sizeof(sbc_enc->output_frame), 1);
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int start_err = audio_encoder_start(&sbc_enc->encoder);
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printf("sbc_enc_open ok %d\n", start_err);
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#if SBC_USE_MIC_CHANNEL
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fmt.sample_rate = 44100;
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audio_adc_mic_open(&sbc_enc->mic_ch, AUDIO_ADC_MIC_CH, &adc_hdl);
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audio_adc_mic_set_sample_rate(&sbc_enc->mic_ch, fmt.sample_rate);
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audio_adc_mic_set_gain(&sbc_enc->mic_ch, app_var.aec_mic_gain);
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audio_adc_mic_set_buffs(&sbc_enc->mic_ch, sbc_enc->adc_buf,
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ESCO_ADC_IRQ_POINTS * 2, ESCO_ADC_BUF_NUM);
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sbc_enc->adc_output.handler = adc_mic_output_handler;
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audio_adc_add_output_handler(&adc_hdl, &sbc_enc->adc_output);
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//app_audio_output_samplerate_set(44100);
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//app_audio_output_start();
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audio_adc_mic_start(&sbc_enc->mic_ch);
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#endif
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clock_add(ENC_SBC_CLK);
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clock_set_cur();
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sbc_buf_flag |= SBC_ENC_START;
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audio_sbc_enc_open_exit();
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return 0;
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}
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int audio_sbc_enc_reset_buf(u8 flag)
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{
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if (!sbc_enc) {
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return -1;
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}
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r_printf("audio_sbc_enc_reset_buf %d\n", flag);
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if (flag) {
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//有些情况（提示音）没有足够的参数去fade out，使得下次fade in受影响。
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//所以默认每次都reset一下
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/* audio_digital_vol_reset_fade(sbc_enc->dvol); */
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/* audio_digital_vol_set(sbc_enc->dvol, sbc_enc->backup_digital_vol); */
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if (sbc_enc->mute_data_send_timer) {
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sys_hi_timer_del(sbc_enc->mute_data_send_timer);
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sbc_enc->mute_data_send_timer = 0;
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sbc_buf_flag &= ~SBC_ENC_PCM_MUTE_DATA;
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}
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} else {
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/* audio_digital_vol_set(sbc_enc->dvol, 0); */
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if (sbc_enc->mute_data_send_timer == 0) {
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//sbc_enc->mute_data_send_timer= sys_hi_timer_add((void *)0, sbc_send_mute_data, 12);
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}
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}
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return 0;
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}
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int audio_sbc_enc_close()
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{
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if (!sbc_enc) {
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return -1;
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}
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printf("audio_sbc_enc_close\n");
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audio_sbc_enc_close_enter();
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sbc_buf_flag &= ~SBC_ENC_START;
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while (sbc_buf_flag & SBC_ENC_WRITING) {
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os_time_dly(1);
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}
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/* audio_digital_vol_close(sbc_enc->dvol); */
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#if SBC_USE_MIC_CHANNEL
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audio_adc_mic_close(&sbc_enc->mic_ch);
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audio_adc_del_output_handler(&adc_hdl, &sbc_enc->adc_output);
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#endif
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audio_encoder_close(&sbc_enc->encoder);
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free(sbc_enc);
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sbc_enc = NULL;
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audio_encoder_task_close();
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clock_remove(ENC_SBC_CLK);
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clock_set_cur();
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printf("audio_sbc_enc_close end\n");
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return 0;
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}
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void audio_sbc_enc_init(void)
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{
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/* audio_digital_vol_open(0, 30, 4); */
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//printf("init vol:%d \n", app_var.music_volume);
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//audio_digital_vol_open(app_var.music_volume, 30, 7);
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}
|
||
|
||
int audio_sbc_enc_is_work(void)
|
||
{
|
||
if ((sbc_buf_flag & SBC_ENC_START) && sbc_enc) {
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
#if (AUDIO_OUTPUT_WAY == AUDIO_OUTPUT_WAY_BT)
|
||
#include "application/audio_dig_vol.h"
|
||
extern void *bt_digvol_last;
|
||
#endif
|
||
void bt_emitter_set_vol(u8 vol)
|
||
{
|
||
if (!(sbc_buf_flag & SBC_ENC_START)) {
|
||
return ;
|
||
}
|
||
if (!sbc_enc) {
|
||
return ;
|
||
}
|
||
sbc_enc->backup_digital_vol = vol;
|
||
r_printf("=======set vol %d\n", vol);
|
||
#if (AUDIO_OUTPUT_WAY == AUDIO_OUTPUT_WAY_BT)
|
||
if (bt_digvol_last) {
|
||
audio_dig_vol_set(bt_digvol_last, AUDIO_DIG_VOL_ALL_CH, vol);
|
||
}
|
||
#endif
|
||
}
|
||
|
||
int audio_sbc_enc_get_rate(void)
|
||
{
|
||
int sr = 44100;
|
||
switch (sbc_param.frequency) {
|
||
case SBC_FREQ_16000:
|
||
sr = 16000;
|
||
break;
|
||
case SBC_FREQ_32000:
|
||
sr = 32000;
|
||
break;
|
||
case SBC_FREQ_44100:
|
||
sr = 44100;
|
||
break;
|
||
case SBC_FREQ_48000:
|
||
sr = 48000;
|
||
break;
|
||
}
|
||
return sr;
|
||
}
|
||
int audio_sbc_enc_get_channel_num(void)
|
||
{
|
||
return sbc_param.mode == SBC_MODE_MONO ? 1 : 2;
|
||
}
|
||
|
||
int a2dp_sbc_encoder_init(void *sbc_struct)
|
||
{
|
||
if (sbc_struct) {
|
||
//更新连接过程中的a2dp source参数
|
||
//audio_sbc_enc_config(&sbc_param);
|
||
memcpy(&sbc_param, sbc_struct, sizeof(sbc_t));
|
||
//audio_sbc_enc_config(&sbc_param);
|
||
audio_sbc_enc_open();
|
||
} else {
|
||
audio_sbc_enc_close();
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
|
||
#if (AUDIO_OUTPUT_WAY == AUDIO_OUTPUT_WAY_BT)
|
||
|
||
struct sbc_emitter_hdl sbc_emitter = {0};
|
||
|
||
static int audio_stream_sbc_emitter_data_handler(struct audio_stream_entry *entry, struct audio_data_frame *in,
|
||
struct audio_data_frame *out)
|
||
{
|
||
if (in->data_len == 0) {
|
||
return 0;
|
||
}
|
||
if (false == audio_sbc_enc_is_work()) {
|
||
return in->data_len;
|
||
}
|
||
return audio_sbc_enc_write(in->data, in->data_len);
|
||
}
|
||
|
||
void audio_sbc_emitter_init(void)
|
||
{
|
||
sbc_emitter.entry.data_handler = audio_stream_sbc_emitter_data_handler;
|
||
}
|
||
|
||
#endif
|
||
|
||
|