void bufaddcomplex(buf_s *b, complex double val)
{
double i, r;
r = creal(val);
if(EQ0((i = cimag(val)))) {
bufadddouble(b, r);
}
else {
if(!EQ0(r)) {
bufaddc(b, '(');
bufadddouble(b, r);
if(i > 0)
bufaddstr(b, " plus ", sizeof(" plus ")-1);
if(EQ1(i)) {
bufaddc(b, 'i');
}
else if(EQN1(i)) {
bufaddstr(b, "-i", sizeof("-1")-1);
}
else {
bufadddouble(b, i);
bufaddc(b, 'i');
}
bufaddc(b, ')');
}
else {
if(EQ1(i)) {
bufaddc(b, 'i');
}
else if(EQN1(i)) {
bufaddstr(b, "-i", sizeof("-1")-1);
}
else {
bufadddouble(b, i);
bufaddc(b, 'i');
}
}
}
}
default:
return RT_ERROR;
}
codec_send(r06);
codec_send(r07);
#if !CODEC_MASTER_MODE
codec_sr_new = sr;
#endif
return RT_EOK;
}
FINSH_FUNCTION_EXPORT(vol, Set volume);
FINSH_FUNCTION_EXPORT(eq1, Set EQ1(Cut-off, Gain, Mode));
FINSH_FUNCTION_EXPORT(eq2, Set EQ2(Center, Gain, Bandwidth));
FINSH_FUNCTION_EXPORT(eq3, Set EQ3(Center, Gain, Bandwidth));
FINSH_FUNCTION_EXPORT(eq4, Set EQ4(Center, Gain, Bandwidth));
FINSH_FUNCTION_EXPORT(eq5, Set EQ5(Cut-off, Gain));
FINSH_FUNCTION_EXPORT(eq3d, Set 3D(Depth));
FINSH_FUNCTION_EXPORT(sample_rate, Set sample rate);
static rt_err_t codec_open(rt_device_t dev, rt_uint16_t oflag)
{
#if !CODEC_MASTER_MODE
/* enable I2S */
I2S_Cmd(CODEC_I2S_PORT, ENABLE);
#endif
return RT_EOK;
