synth_mono.h File Reference

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Functions
int	MONO_NAME (real *bandPtr, mpg123_handle *fr)
int	MONO2STEREO_NAME (real *bandPtr, mpg123_handle *fr)

Function Documentation

MONO2STEREO_NAME()

int MONO2STEREO_NAME	(	real *	bandPtr,
		mpg123_handle *	fr
	)

Definition at line 49 of file synth_mono.h.

{
    int i,ret;
    unsigned char *samples = fr->buffer.data;
 
    ret = SYNTH_NAME(bandPtr,0,fr,1);
    samples += fr->buffer.fill - BLOCK*sizeof(SAMPLE_T);
 
    for(i=0;i<(BLOCK/2);i++)
    {
        ((SAMPLE_T *)samples)[1] = ((SAMPLE_T *)samples)[0];
        samples+=2*sizeof(SAMPLE_T);
    }
 
    return ret;
}

MONO_NAME()

int MONO_NAME	(	real *	bandPtr,
		mpg123_handle *	fr
	)

Definition at line 21 of file synth_mono.h.

{
    SAMPLE_T samples_tmp[BLOCK];
    SAMPLE_T *tmp1 = samples_tmp;
    int i,ret;
 
    /* save buffer stuff, trick samples_tmp into there, decode, restore */
    unsigned char *samples = fr->buffer.data;
    int pnt = fr->buffer.fill;
    fr->buffer.data = (unsigned char*) samples_tmp;
    fr->buffer.fill = 0;
    ret = SYNTH_NAME(bandPtr, 0, fr, 0); /* decode into samples_tmp */
    fr->buffer.data = samples; /* restore original value */
 
    /* now append samples from samples_tmp */
    samples += pnt; /* just the next mem in frame buffer */
    for(i=0;i<(BLOCK/2);i++)
    {
        *( (SAMPLE_T *)samples) = *tmp1;
        samples += sizeof(SAMPLE_T);
        tmp1 += 2;
    }
    fr->buffer.fill = pnt + (BLOCK/2)*sizeof(SAMPLE_T);
 
    return ret;
}