int
decode_layer1_frame(PMPSTR mp, unsigned char *pcm_sample, int *pcm_point)
{
real fraction[2][SBLIMIT]; /* FIXME: change real -> double ? */
sideinfo_layer_I si;
struct frame *fr = &(mp->fr);
int single = fr->single;
int i, clip = 0;
I_step_one(mp, &si);
if (fr->stereo == 1 || single == 3)
single = 0;
if (single >= 0) {
/* decoding one of possibly two channels */
for (i = 0; i < SCALE_BLOCK; i++) {
I_step_two(mp, &si, fraction);
clip += synth_1to1_mono(mp, (real *) fraction[single], pcm_sample, pcm_point);
}
}
else {
for (i = 0; i < SCALE_BLOCK; i++) {
int p1 = *pcm_point;
I_step_two(mp, &si, fraction);
clip += synth_1to1(mp, (real *) fraction[0], 0, pcm_sample, &p1);
clip += synth_1to1(mp, (real *) fraction[1], 1, pcm_sample, pcm_point);
}
}
return clip;
}
/*int do_layer1(struct frame *fr,int outmode,struct audio_info_struct *ai) */
int do_layer1(PMPSTR mp, unsigned char *pcm_sample,int *pcm_point)
{
int clip=0;
unsigned int balloc[2*SBLIMIT];
unsigned int scale_index[2][SBLIMIT];
real fraction[2][SBLIMIT];
struct frame *fr=&(mp->fr);
int i,stereo = fr->stereo;
int single = fr->single;
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? (fr->mode_ext<<2)+4 : 32;
if(stereo == 1 || single == 3)
single = 0;
I_step_one(balloc,scale_index,fr);
for (i=0;i<SCALE_BLOCK;i++)
{
I_step_two(fraction,balloc,scale_index,fr);
if(single >= 0)
{
clip += synth_1to1_mono( mp, (real *) fraction[single],pcm_sample,pcm_point);
}
else {
int p1 = *pcm_point;
clip += synth_1to1( mp, (real *) fraction[0],0,pcm_sample,&p1);
clip += synth_1to1( mp, (real *) fraction[1],1,pcm_sample,pcm_point);
}
}
return clip;
}
int do_layer1(mpg123_handle *fr)
{
int clip=0;
int i,stereo = fr->stereo;
unsigned int balloc[2*SBLIMIT];
unsigned int scale_index[2][SBLIMIT];
real (*fraction)[SBLIMIT] = fr->layer1.fraction; /* fraction[2][SBLIMIT] */
int single = fr->single;
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? (fr->mode_ext<<2)+4 : 32;
if(stereo == 1 || single == SINGLE_MIX) /* I don't see mixing handled here */
single = SINGLE_LEFT;
I_step_one(balloc,scale_index,fr);
for(i=0;i<SCALE_BLOCK;i++)
{
I_step_two(fraction,balloc,scale_index,fr);
if(single != SINGLE_STEREO)
clip += (fr->synth_mono)(fraction[single], fr);
else
clip += (fr->synth_stereo)(fraction[0], fraction[1], fr);
}
return clip;
}
int do_layer1(mpg123_handle *fr)
{
int clip=0;
int i,stereo = fr->stereo;
unsigned int balloc[2*SBLIMIT];
unsigned int scale_index[2][SBLIMIT];
ALIGNED(16) real fraction[2][SBLIMIT];
int single = fr->single;
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? (fr->mode_ext<<2)+4 : 32;
if(stereo == 1 || single == SINGLE_MIX) /* I don't see mixing handled here */
single = SINGLE_LEFT;
I_step_one(balloc,scale_index,fr);
for (i=0;i<SCALE_BLOCK;i++)
{
I_step_two(fraction,balloc,scale_index,fr);
if(single != SINGLE_STEREO)
{
clip += (fr->synth_mono)( (real *) fraction[single], fr);
}
else
{
clip += (fr->synth)( (real *) fraction[0], 0, fr, 0);
clip += (fr->synth)( (real *) fraction[1], 1, fr, 1);
}
}
return clip;
}
static int do_layer1(mp3lib_ctx *ctx,int single)
{
struct frame *fr=&ctx->fr;
int clip=0;
int i,stereo = fr->stereo;
unsigned int balloc[2*SBLIMIT];
unsigned int scale_index[2][SBLIMIT];
real fraction[2][SBLIMIT];
// int single = fr->single;
// printf("do_layer1(0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X )\n",
// wordpointer[0],wordpointer[1],wordpointer[2],wordpointer[3],wordpointer[4],wordpointer[5],wordpointer[6],wordpointer[7]);
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ?
(fr->mode_ext<<2)+4 : 32;
if(stereo == 1 || single == 3)
single = 0;
I_step_one(ctx,balloc,scale_index,fr);
for (i=0;i<SCALE_BLOCK;i++)
{
I_step_two(ctx,fraction,balloc,scale_index,fr);
if(single >= 0)
{
clip += (fr->synth_mono)( ctx,(real *) fraction[single],ctx->pcm_sample,&ctx->pcm_point);
}
else {
int p1 = ctx->pcm_point;
clip += (fr->synth)( ctx,(real *) fraction[0],0,ctx->pcm_sample,&p1);
clip += (fr->synth)( ctx,(real *) fraction[1],1,ctx->pcm_sample,&ctx->pcm_point);
}
}
return clip;
}
