int
decode_layer2_frame(PMPSTR mp, unsigned char *pcm_sample, int *pcm_point)
{
real fraction[2][4][SBLIMIT]; /* pick_table clears unused subbands */
sideinfo_layer_II si;
struct frame *fr = &(mp->fr);
int single = fr->single;
int i, j, clip = 0;
II_select_table(fr);
II_step_one(mp, &si, fr);
if (fr->stereo == 1 || single == 3)
single = 0;
if (single >= 0) {
for (i = 0; i < SCALE_BLOCK; i++) {
II_step_two(mp, &si, fr, i >> 2, fraction);
for (j = 0; j < 3; j++) {
clip += synth_1to1_mono(mp, fraction[single][j], pcm_sample, pcm_point);
}
}
}
else {
for (i = 0; i < SCALE_BLOCK; i++) {
//--------------------------------------------------------------------------------------------------------------
int DecodeLayer2( MPEGFrameInfo* pFrameInfo, unsigned char* pOut, int* pOutSize )
{
int clip=0;
int i,j;
int stereo = pFrameInfo->dwChannels;
float pFrameInfoaction[2][4][MPEG_SBLimit]; /* pick_table clears unused subbands */
unsigned int bit_alloc[64];
int scale[192];
II_select_table(pFrameInfo);
pFrameInfo->nJointStereo = (pFrameInfo->dwChannels == 1) ? (pFrameInfo->bJointMode<<2)+4 : pFrameInfo->nTableSelect;
II_step_one(bit_alloc, scale, pFrameInfo);
for (i=0;i<MPEG_ScaleBlock;i++)
{
II_step_two(bit_alloc,pFrameInfoaction,scale,pFrameInfo,i>>2);
for (j=0;j<3;j++)
{
if( stereo == 1 )
{
clip += Synth_1to1_Mono(pFrameInfoaction[0][j],pOut,pOutSize);
}
else
{
int p1 = *pOutSize;
clip += Synth_1to1(pFrameInfoaction[0][j],0,pOut,&p1);
clip += Synth_1to1(pFrameInfoaction[1][j],1,pOut,pOutSize);
}
}
}
return clip;
}
int mpg123_do_layer2(struct frame *fr)
{
int i, j;
int stereo = fr->stereo;
real fraction[2][4][SBLIMIT]; /* pick_table clears unused subbands */
unsigned int bit_alloc[64];
int scale[192];
int single = fr->single;
II_select_table(fr);
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ?
(fr->mode_ext << 2) + 4 : fr->II_sblimit;
if (fr->jsbound > fr->II_sblimit)
fr->jsbound = fr->II_sblimit;
if (stereo == 1 || single == 3)
single = 0;
II_step_one(bit_alloc, scale, fr);
for (i = 0; i < SCALE_BLOCK; i++)
{
II_step_two(bit_alloc, fraction, scale, fr, i >> 2);
for (j = 0; j < 3; j++)
{
if (single >= 0)
{
(fr->synth_mono) (fraction[single][j], mpg123_pcm_sample, &mpg123_pcm_point);
}
else
{
int p1 = mpg123_pcm_point;
(fr->synth) (fraction[0][j], 0, mpg123_pcm_sample, &p1);
(fr->synth) (fraction[1][j], 1, mpg123_pcm_sample, &mpg123_pcm_point);
}
/* if(mpg123_pcm_point >= audiobufsize)
audio_flush(outmode,ai); */
}
}
if (mpg123_info->output_audio)
{
mpg123_ip.add_vis_pcm(mpg123_ip.output->written_time(), mpg123_cfg.resolution == 16 ? FMT_S16_NE : FMT_U8,
mpg123_cfg.channels == 2 ? fr->stereo : 1, mpg123_pcm_point, mpg123_pcm_sample);
while (mpg123_ip.output->buffer_free() < mpg123_pcm_point && mpg123_info->going && mpg123_info->jump_to_time == -1)
xmms_usleep(10000);
if (mpg123_info->going && mpg123_info->jump_to_time == -1)
mpg123_ip.output->write_audio(mpg123_pcm_sample, mpg123_pcm_point);
}
mpg123_pcm_point = 0;
return 1;
}
int do_layer2(mpg123_handle *fr)
{
int clip=0;
int i,j;
int stereo = fr->stereo;
/* pick_table clears unused subbands */
/* replacement for real fraction[2][4][SBLIMIT], needs alignment. */
real (*fraction)[4][SBLIMIT] = fr->layer2.fraction;
unsigned int bit_alloc[64];
int scale[192];
int single = fr->single;
II_select_table(fr);
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? (fr->mode_ext<<2)+4 : fr->II_sblimit;
if(fr->jsbound > fr->II_sblimit)
{
fprintf(stderr, "Truncating stereo boundary to sideband limit.\n");
fr->jsbound=fr->II_sblimit;
}
/* TODO: What happens with mono mixing, actually? */
if(stereo == 1 || single == SINGLE_MIX) /* also, mix not really handled */
single = SINGLE_LEFT;
II_step_one(bit_alloc, scale, fr);
for(i=0;i<SCALE_BLOCK;i++)
{
II_step_two(bit_alloc,fraction,scale,fr,i>>2);
for(j=0;j<3;j++)
{
if(single != SINGLE_STEREO)
clip += (fr->synth_mono)(fraction[single][j], fr);
else
clip += (fr->synth_stereo)(fraction[0][j], fraction[1][j], fr);
}
}
return clip;
}
int do_layer2(struct mpstr *mp,struct frame *fr,int outmode,struct audio_info_struct *ai)
{
int clip=0;
int i,j;
int stereo = fr->stereo;
real fraction[2][4][SBLIMIT]; /* pick_table clears unused subbands */
unsigned int bit_alloc[64];
int scale[192];
int single = fr->single;
II_select_table(fr);
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ?
(fr->mode_ext<<2)+4 : fr->II_sblimit;
if(stereo == 1 || single == 3)
single = 0;
II_step_one(bit_alloc, scale, fr);
for (i=0;i<SCALE_BLOCK;i++)
{
II_step_two(bit_alloc,fraction,scale,fr,i>>2);
for (j=0;j<3;j++)
{
if(single >= 0)
{
clip += (fr->synth_mono) (fraction[single][j],pcm_sample,&pcm_point);
}
else {
int p1 = pcm_point;
clip += (fr->synth) (fraction[0][j],0,pcm_sample,&p1);
clip += (fr->synth) (fraction[1][j],1,pcm_sample,&pcm_point);
}
if(pcm_point >= audiobufsize)
audio_flush(outmode,ai);
}
}
return clip;
}
int do_layer2( PMPSTR mp,unsigned char *pcm_sample,int *pcm_point)
/*int do_layer2(struct frame *fr,int outmode,struct audio_info_struct *ai) */
{
int clip=0;
int i,j;
real fraction[2][4][SBLIMIT]; /* pick_table clears unused subbands */
unsigned int bit_alloc[64];
int scale[192];
struct frame *fr=&(mp->fr);
int stereo = fr->stereo;
int single = fr->single;
II_select_table(fr);
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ?
(fr->mode_ext<<2)+4 : fr->II_sblimit;
if(stereo == 1 || single == 3)
single = 0;
II_step_one(bit_alloc, scale, fr);
for (i=0;i<SCALE_BLOCK;i++)
{
II_step_two(bit_alloc,fraction,scale,fr,i>>2);
for (j=0;j<3;j++)
{
if(single >= 0)
{
clip += synth_1to1_mono(mp, fraction[single][j],pcm_sample,pcm_point);
}
else {
int p1 = *pcm_point;
clip += synth_1to1(mp, fraction[0][j],0,pcm_sample,&p1);
clip += synth_1to1(mp, fraction[1][j],1,pcm_sample,pcm_point);
}
}
}
return clip;
}
int sha123_do_layer2(sha123_t * sha123)
{
sha123_frame_t *fr = &sha123->frame;
int i, j;
const int stereo = 1 << fr->info.log2chan;
real fraction[2][4][SBLIMIT]; /* pick_table clears unused subbands */
unsigned int bit_alloc[64];
int scale[192];
int single = fr->info.log2chan;
II_select_table(fr);
fr->jsbound = (fr->header.mode == MPG_MD_JOINT_STEREO) ?
(fr->header.mode_ext << 2) + 4 : fr->II_sblimit;
if (fr->jsbound > fr->II_sblimit)
fr->jsbound = fr->II_sblimit;
II_step_one(bit_alloc, scale, fr, &sha123->bsi);
for (i = 0; i < SCALE_BLOCK; i++) {
II_step_two(bit_alloc, fraction, scale, fr, i >> 2, &sha123->bsi);
for (j = 0; j < 3; j++) {
if (single >= 0) {
fr->synth_mn(fraction[single][j], sha123->pcm_sample,
&sha123->pcm_point);
} else {
int p1 = sha123->pcm_point;
fr->synth_st(fraction[0][j], 0, sha123->pcm_sample, &p1);
fr->synth_st(fraction[1][j], 1, sha123->pcm_sample, &sha123->pcm_point);
}
/* if(sha123->pcm_point >= audiobufsize)
audio_flush(outmode,ai); */
}
}
sha123->pcm_point = 0;
return 1;
}
int do_layer2(struct StaticData * psd, struct mpstr * gmp, struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
{
int clip=0;
int i,j;
int stereo = fr->stereo;
float fraction[2][4][SBLIMIT]; /* pick_table clears unused subbands */
unsigned int bit_alloc[64];
int scale[192];
int single = fr->single;
II_select_table(fr);
fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ?
(fr->mode_ext<<2)+4 : fr->II_sblimit;
if(stereo == 1 || single == 3)
single = 0;
II_step_one(psd, bit_alloc, scale, fr);
for (i=0; i<SCALE_BLOCK; i++)
{
II_step_two(psd, bit_alloc,fraction,scale,fr,i>>2);
for (j=0; j<3; j++)
{
if(single >= 0)
{
clip += synth_1to1_mono(psd, gmp, fraction[single][j],pcm_sample,pcm_point);
}
else {
int p1 = *pcm_point;
clip += synth_1to1(psd, gmp, fraction[0][j],0,pcm_sample,&p1);
clip += synth_1to1(psd, gmp, fraction[1][j],1,pcm_sample,pcm_point);
}
}
}
return clip;
}
