diff --git a/panda/src/mpg123/decode.c b/panda/src/mpg123/decode.c new file mode 100644 index 0000000000..8310df7bd6 --- /dev/null +++ b/panda/src/mpg123/decode.c @@ -0,0 +1,223 @@ +/* + * Mpeg Layer-1,2,3 audio decoder + * ------------------------------ + * copyright (c) 1995,1996,1997 by Michael Hipp, All rights reserved. + * See also 'README' + * + */ + +#include +#include +#include + +#include "mpg123.h" + +#define WRITE_SAMPLE(samples,sum,clip) \ + if( (sum) > 32767.0) { *(samples) = 0x7fff; (clip)++; } \ + else if( (sum) < -32768.0) { *(samples) = -0x8000; (clip)++; } \ + else { *(samples) = sum; } + +int synth_1to1_8bit(real *bandPtr,int channel,unsigned char *samples,int *pnt) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp + channel; + int i,ret; + int pnt1=0; + + ret = synth_1to1(bandPtr,channel,(unsigned char *) samples_tmp,&pnt1); + samples += channel + *pnt; + + for(i=0;i<32;i++) { + *samples = conv16to8[*tmp1>>AUSHIFT]; + samples += 2; + tmp1 += 2; + } + *pnt += 64; + + return ret; +} + +int synth_1to1_8bit_mono(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_1to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<32;i++) { + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + *pnt += 32; + + return ret; +} + +int synth_1to1_8bit_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_1to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<32;i++) { + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + *pnt += 64; + + return ret; +} + +int synth_1to1_mono(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_1to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<32;i++) { + *( (short *)samples) = *tmp1; + samples += 2; + tmp1 += 2; + } + *pnt += 64; + + return ret; +} + + +int synth_1to1_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt) +{ + int i,ret; + + ret = synth_1to1(bandPtr,0,samples,pnt); + samples = samples + *pnt - 128; + + for(i=0;i<32;i++) { + ((short *)samples)[1] = ((short *)samples)[0]; + samples+=4; + } + + return ret; +} + + +int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt) +{ + static real buffs[2][2][0x110]; + static const int step = 2; + static int bo = 1; + short *samples = (short *) (out+*pnt); + + real *b0,(*buf)[0x110]; + int clip = 0; + int bo1; + + if(param.enable_equalizer) + do_equalizer(bandPtr,channel); + + if(!channel) { + bo--; + bo &= 0xf; + buf = buffs[0]; + } + else { + samples++; + buf = buffs[1]; + } + + if(bo & 0x1) { + b0 = buf[0]; + bo1 = bo; + dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr); + } + else { + b0 = buf[1]; + bo1 = bo+1; + dct64(buf[0]+bo,buf[1]+bo+1,bandPtr); + } + + + { + register int j; + real *window = decwin + 16 - bo1; + + for (j=16;j;j--,window+=0x10,samples+=step) + { + real sum; + sum = *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + + WRITE_SAMPLE(samples,sum,clip); + } + + { + real sum; + sum = window[0x0] * b0[0x0]; + sum += window[0x2] * b0[0x2]; + sum += window[0x4] * b0[0x4]; + sum += window[0x6] * b0[0x6]; + sum += window[0x8] * b0[0x8]; + sum += window[0xA] * b0[0xA]; + sum += window[0xC] * b0[0xC]; + sum += window[0xE] * b0[0xE]; + WRITE_SAMPLE(samples,sum,clip); + b0-=0x10,window-=0x20,samples+=step; + } + window += bo1<<1; + + for (j=15;j;j--,b0-=0x20,window-=0x10,samples+=step) + { + real sum; + sum = -*(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + + WRITE_SAMPLE(samples,sum,clip); + } + } + + *pnt += 128; + + return clip; +} + + diff --git a/panda/src/mpg123/decode_2to1.c b/panda/src/mpg123/decode_2to1.c new file mode 100644 index 0000000000..ae6c4e1215 --- /dev/null +++ b/panda/src/mpg123/decode_2to1.c @@ -0,0 +1,231 @@ +/* + * Mpeg Layer-1,2,3 audio decoder + * ------------------------------ + * copyright (c) 1995 by Michael Hipp, All rights reserved. See also 'README' + * version for slower machines .. decodes only every second sample + * sounds like 24000,22050 or 16000 kHz .. (depending on original sample freq.) + * + */ + +#include +#include +#include + +#include "mpg123.h" + +#define WRITE_SAMPLE(samples,sum,clip) \ + if( (sum) > 32767.0) { *(samples) = 0x7fff; (clip)++; } \ + else if( (sum) < -32768.0) { *(samples) = -0x8000; (clip)++; } \ + else { *(samples) = sum; } + +int synth_2to1_8bit(real *bandPtr,int channel,unsigned char *samples,int *pnt) +{ + short samples_tmp[32]; + short *tmp1 = samples_tmp + channel; + int i,ret; + int pnt1 = 0; + + ret = synth_2to1(bandPtr,channel,(unsigned char *) samples_tmp,&pnt1); + samples += channel + *pnt; + + for(i=0;i<16;i++) { + *samples = conv16to8[*tmp1>>AUSHIFT]; + samples += 2; + tmp1 += 2; + } + *pnt += 32; + + return ret; +} + +int synth_2to1_8bit_mono(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[32]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_2to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<16;i++) { + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + *pnt += 16; + + return ret; +} + + +int synth_2to1_8bit_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[32]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_2to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<16;i++) { + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + *pnt += 32; + + return ret; +} + +int synth_2to1_mono(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[32]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1=0; + + ret = synth_2to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<16;i++) { + *( (short *) samples) = *tmp1; + samples += 2; + tmp1 += 2; + } + *pnt += 32; + + return ret; +} + +int synth_2to1_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt) +{ + int i,ret; + + ret = synth_2to1(bandPtr,0,samples,pnt); + samples = samples + *pnt - 64; + + for(i=0;i<16;i++) { + ((short *)samples)[1] = ((short *)samples)[0]; + samples+=4; + } + + return ret; +} + +int synth_2to1(real *bandPtr,int channel,unsigned char *out,int *pnt) +{ + static real buffs[2][2][0x110]; + static const int step = 2; + static int bo = 1; + short *samples = (short *) (out + *pnt); + + real *b0,(*buf)[0x110]; + int clip = 0; + int bo1; + + if(param.enable_equalizer) + do_equalizer(bandPtr,channel); + + if(!channel) { + bo--; + bo &= 0xf; + buf = buffs[0]; + } + else { + samples++; + buf = buffs[1]; + } + + if(bo & 0x1) { + b0 = buf[0]; + bo1 = bo; + dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr); + } + else { + b0 = buf[1]; + bo1 = bo+1; + dct64(buf[0]+bo,buf[1]+bo+1,bandPtr); + } + + { + register int j; + real *window = decwin + 16 - bo1; + + for (j=8;j;j--,b0+=0x10,window+=0x30) + { + real sum; + sum = *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + } + + { + real sum; + sum = window[0x0] * b0[0x0]; + sum += window[0x2] * b0[0x2]; + sum += window[0x4] * b0[0x4]; + sum += window[0x6] * b0[0x6]; + sum += window[0x8] * b0[0x8]; + sum += window[0xA] * b0[0xA]; + sum += window[0xC] * b0[0xC]; + sum += window[0xE] * b0[0xE]; + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + b0-=0x20,window-=0x40; + } + window += bo1<<1; + + for (j=7;j;j--,b0-=0x30,window-=0x30) + { + real sum; + sum = -*(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + } + } + + *pnt += 64; + + return clip; +} + + diff --git a/panda/src/mpg123/decode_4to1.c b/panda/src/mpg123/decode_4to1.c new file mode 100644 index 0000000000..c2a16faecb --- /dev/null +++ b/panda/src/mpg123/decode_4to1.c @@ -0,0 +1,238 @@ +/* + * Mpeg Layer-1,2,3 audio decoder + * ------------------------------ + * copyright (c) 1995,1996,1997 by Michael Hipp, All rights reserved. + * See also 'README' + * version for slower machines .. decodes only every fourth sample + * dunno why it sounds THIS annoying (maybe we should adapt the window?) + * absolutely not optimized for this operation + */ + +#include +#include +#include + +#include "mpg123.h" + +#define WRITE_SAMPLE(samples,sum,clip) \ + if( (sum) > 32767.0) { *(samples) = 0x7fff; (clip)++; } \ + else if( (sum) < -32768.0) { *(samples) = -0x8000; (clip)++; } \ + else { *(samples) = sum; } + +int synth_4to1_8bit(real *bandPtr,int channel,unsigned char *samples,int *pnt) +{ + short samples_tmp[16]; + short *tmp1 = samples_tmp + channel; + int i,ret; + int pnt1 = 0; + + ret = synth_4to1(bandPtr,channel,(unsigned char *) samples_tmp,&pnt1); + samples += channel + *pnt; + + for(i=0;i<8;i++) { + *samples = conv16to8[*tmp1>>AUSHIFT]; + samples += 2; + tmp1 += 2; + } + *pnt += 16; + + return ret; +} + +int synth_4to1_8bit_mono(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[16]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_4to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<8;i++) { + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + *pnt += 8; + + return ret; +} + + +int synth_4to1_8bit_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[16]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_4to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<8;i++) { + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + *pnt += 16; + + return ret; +} + +int synth_4to1_mono(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[16]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_4to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<8;i++) { + *( (short *)samples) = *tmp1; + samples += 2; + tmp1 += 2; + } + *pnt += 16; + + return ret; +} + +int synth_4to1_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt) +{ + int i,ret; + + ret = synth_4to1(bandPtr,0,samples,pnt); + samples = samples + *pnt - 32; + + for(i=0;i<8;i++) { + ((short *)samples)[1] = ((short *)samples)[0]; + samples+=4; + } + + return ret; +} + +int synth_4to1(real *bandPtr,int channel,unsigned char *out,int *pnt) +{ + static real buffs[2][2][0x110]; + static const int step = 2; + static int bo = 1; + short *samples = (short *) (out + *pnt); + + real *b0,(*buf)[0x110]; + int clip = 0; + int bo1; + + if(param.enable_equalizer) + do_equalizer(bandPtr,channel); + + if(!channel) { + bo--; + bo &= 0xf; + buf = buffs[0]; + } + else { + samples++; + buf = buffs[1]; + } + + if(bo & 0x1) { + b0 = buf[0]; + bo1 = bo; + dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr); + } + else { + b0 = buf[1]; + bo1 = bo+1; + dct64(buf[0]+bo,buf[1]+bo+1,bandPtr); + } + + { + register int j; + real *window = decwin + 16 - bo1; + + for (j=4;j;j--,b0+=0x30,window+=0x70) + { + real sum; + sum = *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + } + + { + real sum; + sum = window[0x0] * b0[0x0]; + sum += window[0x2] * b0[0x2]; + sum += window[0x4] * b0[0x4]; + sum += window[0x6] * b0[0x6]; + sum += window[0x8] * b0[0x8]; + sum += window[0xA] * b0[0xA]; + sum += window[0xC] * b0[0xC]; + sum += window[0xE] * b0[0xE]; + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + b0-=0x40,window-=0x80; + } + window += bo1<<1; + + for (j=3;j;j--,b0-=0x50,window-=0x70) + { + real sum; + sum = -*(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + } + } + + *pnt += 32; + + return clip; +} + + diff --git a/panda/src/mpg123/decode_ntom.c b/panda/src/mpg123/decode_ntom.c new file mode 100644 index 0000000000..a44b133c52 --- /dev/null +++ b/panda/src/mpg123/decode_ntom.c @@ -0,0 +1,288 @@ +/* + * Mpeg Layer-1,2,3 audio decoder + * ------------------------------ + * copyright (c) 1995,1996,1997 by Michael Hipp, All rights reserved. + * See also 'README' + * + * N->M down/up sampling. Not optimized for speed. + */ + +#include +#include +#include + +#include "mpg123.h" + +#define WRITE_SAMPLE(samples,sum,clip) \ + if( (sum) > 32767.0) { *(samples) = 0x7fff; (clip)++; } \ + else if( (sum) < -32768.0) { *(samples) = -0x8000; (clip)++; } \ + else { *(samples) = sum; } + +#define NTOM_MUL (32768) +static unsigned long ntom_val[2] = { NTOM_MUL>>1,NTOM_MUL>>1 }; +static unsigned long ntom_step = NTOM_MUL; + + +void synth_ntom_set_step(long m,long n) +{ + if(param.verbose > 1) + fprintf(stderr,"Init rate converter: %ld->%ld\n",m,n); + + if(n >= 96000 || m >= 96000 || m == 0 || n == 0) { + fprintf(stderr,"NtoM converter: illegal rates\n"); + exit(1); + } + + n *= NTOM_MUL; + ntom_step = n / m; + + if(ntom_step > 8*NTOM_MUL) { + fprintf(stderr,"max. 1:8 conversion allowed!\n"); + exit(1); + } + + ntom_val[0] = ntom_val[1] = NTOM_MUL>>1; +} + +int synth_ntom_8bit(real *bandPtr,int channel,unsigned char *samples,int *pnt) +{ + short samples_tmp[8*64]; + short *tmp1 = samples_tmp + channel; + int i,ret; + int pnt1 = 0; + + ret = synth_ntom(bandPtr,channel,(unsigned char *) samples_tmp,&pnt1); + samples += channel + *pnt; + + for(i=0;i<(pnt1>>2);i++) { + *samples = conv16to8[*tmp1>>AUSHIFT]; + samples += 2; + tmp1 += 2; + } + *pnt += pnt1>>1; + + return ret; +} + +int synth_ntom_8bit_mono(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[8*64]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_ntom(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<(pnt1>>2);i++) { + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + *pnt += pnt1 >> 2; + + return ret; +} + +int synth_ntom_8bit_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[8*64]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_ntom(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<(pnt1>>2);i++) { + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + *samples++ = conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + *pnt += pnt1 >> 1; + + return ret; +} + +int synth_ntom_mono(real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[8*64]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_ntom(bandPtr,0,(unsigned char *) samples_tmp,&pnt1); + samples += *pnt; + + for(i=0;i<(pnt1>>2);i++) { + *( (short *)samples) = *tmp1; + samples += 2; + tmp1 += 2; + } + *pnt += pnt1 >> 1; + + return ret; +} + + +int synth_ntom_mono2stereo(real *bandPtr,unsigned char *samples,int *pnt) +{ + int i,ret; + int pnt1 = *pnt; + + ret = synth_ntom(bandPtr,0,samples,pnt); + samples += pnt1; + + for(i=0;i<((*pnt-pnt1)>>2);i++) { + ((short *)samples)[1] = ((short *)samples)[0]; + samples+=4; + } + + return ret; +} + + +int synth_ntom(real *bandPtr,int channel,unsigned char *out,int *pnt) +{ + static real buffs[2][2][0x110]; + static const int step = 2; + static int bo = 1; + short *samples = (short *) (out + *pnt); + + real *b0,(*buf)[0x110]; + int clip = 0; + int bo1; + int ntom; + + if(param.enable_equalizer) + do_equalizer(bandPtr,channel); + + if(!channel) { + bo--; + bo &= 0xf; + buf = buffs[0]; + ntom = ntom_val[1] = ntom_val[0]; + } + else { + samples++; + out += 2; /* to compute the right *pnt value */ + buf = buffs[1]; + ntom = ntom_val[1]; + } + + if(bo & 0x1) { + b0 = buf[0]; + bo1 = bo; + dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr); + } + else { + b0 = buf[1]; + bo1 = bo+1; + dct64(buf[0]+bo,buf[1]+bo+1,bandPtr); + } + + + { + register int j; + real *window = decwin + 16 - bo1; + + for (j=16;j;j--,window+=0x10) + { + real sum; + + ntom += ntom_step; + if(ntom < NTOM_MUL) { + window += 16; + b0 += 16; + continue; + } + + sum = *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + sum += *window++ * *b0++; + sum -= *window++ * *b0++; + + while(ntom >= NTOM_MUL) { + WRITE_SAMPLE(samples,sum,clip); + samples += step; + ntom -= NTOM_MUL; + } + } + + ntom += ntom_step; + if(ntom >= NTOM_MUL) + { + real sum; + sum = window[0x0] * b0[0x0]; + sum += window[0x2] * b0[0x2]; + sum += window[0x4] * b0[0x4]; + sum += window[0x6] * b0[0x6]; + sum += window[0x8] * b0[0x8]; + sum += window[0xA] * b0[0xA]; + sum += window[0xC] * b0[0xC]; + sum += window[0xE] * b0[0xE]; + + while(ntom >= NTOM_MUL) { + WRITE_SAMPLE(samples,sum,clip); + samples += step; + ntom -= NTOM_MUL; + } + } + + b0-=0x10,window-=0x20; + window += bo1<<1; + + for (j=15;j;j--,b0-=0x20,window-=0x10) + { + real sum; + + ntom += ntom_step; + if(ntom < NTOM_MUL) { + window -= 16; + b0 += 16; + continue; + } + + sum = -*(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + sum -= *(--window) * *b0++; + + while(ntom >= NTOM_MUL) { + WRITE_SAMPLE(samples,sum,clip); + samples += step; + ntom -= NTOM_MUL; + } + } + } + + ntom_val[channel] = ntom; + *pnt = ((unsigned char *) samples - out); + + return clip; +} + + diff --git a/panda/src/mpg123/huffman.h b/panda/src/mpg123/huffman.h new file mode 100644 index 0000000000..7fec0d589e --- /dev/null +++ b/panda/src/mpg123/huffman.h @@ -0,0 +1,332 @@ +/* + * huffman tables ... recalcualted to work with my optimzed + * decoder scheme (MH) + * + * probably we could save a few bytes of memory, because the + * smaller tables are often the part of a bigger table + */ + +struct newhuff +{ + unsigned int linbits; + short *table; +}; + +static short tab0[] = +{ + 0 +}; + +static short tab1[] = +{ + -5, -3, -1, 17, 1, 16, 0 +}; + +static short tab2[] = +{ + -15, -11, -9, -5, -3, -1, 34, 2, 18, -1, 33, 32, 17, -1, 1, + 16, 0 +}; + +static short tab3[] = +{ + -13, -11, -9, -5, -3, -1, 34, 2, 18, -1, 33, 32, 16, 17, -1, + 1, 0 +}; + +static short tab5[] = +{ + -29, -25, -23, -15, -7, -5, -3, -1, 51, 35, 50, 49, -3, -1, 19, + 3, -1, 48, 34, -3, -1, 18, 33, -1, 2, 32, 17, -1, 1, 16, + 0 +}; + +static short tab6[] = +{ + -25, -19, -13, -9, -5, -3, -1, 51, 3, 35, -1, 50, 48, -1, 19, + 49, -3, -1, 34, 2, 18, -3, -1, 33, 32, 1, -1, 17, -1, 16, + 0 +}; + +static short tab7[] = +{ + -69, -65, -57, -39, -29, -17, -11, -7, -3, -1, 85, 69, -1, 84, 83, + -1, 53, 68, -3, -1, 37, 82, 21, -5, -1, 81, -1, 5, 52, -1, + 80, -1, 67, 51, -5, -3, -1, 36, 66, 20, -1, 65, 64, -11, -7, + -3, -1, 4, 35, -1, 50, 3, -1, 19, 49, -3, -1, 48, 34, 18, + -5, -1, 33, -1, 2, 32, 17, -1, 1, 16, 0 +}; + +static short tab8[] = +{ + -65, -63, -59, -45, -31, -19, -13, -7, -5, -3, -1, 85, 84, 69, 83, + -3, -1, 53, 68, 37, -3, -1, 82, 5, 21, -5, -1, 81, -1, 52, + 67, -3, -1, 80, 51, 36, -5, -3, -1, 66, 20, 65, -3, -1, 4, + 64, -1, 35, 50, -9, -7, -3, -1, 19, 49, -1, 3, 48, 34, -1, + 2, 32, -1, 18, 33, 17, -3, -1, 1, 16, 0 +}; + +static short tab9[] = +{ + -63, -53, -41, -29, -19, -11, -5, -3, -1, 85, 69, 53, -1, 83, -1, + 84, 5, -3, -1, 68, 37, -1, 82, 21, -3, -1, 81, 52, -1, 67, + -1, 80, 4, -7, -3, -1, 36, 66, -1, 51, 64, -1, 20, 65, -5, + -3, -1, 35, 50, 19, -1, 49, -1, 3, 48, -5, -3, -1, 34, 2, + 18, -1, 33, 32, -3, -1, 17, 1, -1, 16, 0 +}; + +static short tab10[] = +{ +-125,-121,-111, -83, -55, -35, -21, -13, -7, -3, -1, 119, 103, -1, 118, + 87, -3, -1, 117, 102, 71, -3, -1, 116, 86, -1, 101, 55, -9, -3, + -1, 115, 70, -3, -1, 85, 84, 99, -1, 39, 114, -11, -5, -3, -1, + 100, 7, 112, -1, 98, -1, 69, 53, -5, -1, 6, -1, 83, 68, 23, + -17, -5, -1, 113, -1, 54, 38, -5, -3, -1, 37, 82, 21, -1, 81, + -1, 52, 67, -3, -1, 22, 97, -1, 96, -1, 5, 80, -19, -11, -7, + -3, -1, 36, 66, -1, 51, 4, -1, 20, 65, -3, -1, 64, 35, -1, + 50, 3, -3, -1, 19, 49, -1, 48, 34, -7, -3, -1, 18, 33, -1, + 2, 32, 17, -1, 1, 16, 0 +}; + +static short tab11[] = +{ +-121,-113, -89, -59, -43, -27, -17, -7, -3, -1, 119, 103, -1, 118, 117, + -3, -1, 102, 71, -1, 116, -1, 87, 85, -5, -3, -1, 86, 101, 55, + -1, 115, 70, -9, -7, -3, -1, 69, 84, -1, 53, 83, 39, -1, 114, + -1, 100, 7, -5, -1, 113, -1, 23, 112, -3, -1, 54, 99, -1, 96, + -1, 68, 37, -13, -7, -5, -3, -1, 82, 5, 21, 98, -3, -1, 38, + 6, 22, -5, -1, 97, -1, 81, 52, -5, -1, 80, -1, 67, 51, -1, + 36, 66, -15, -11, -7, -3, -1, 20, 65, -1, 4, 64, -1, 35, 50, + -1, 19, 49, -5, -3, -1, 3, 48, 34, 33, -5, -1, 18, -1, 2, + 32, 17, -3, -1, 1, 16, 0 +}; + +static short tab12[] = +{ +-115, -99, -73, -45, -27, -17, -9, -5, -3, -1, 119, 103, 118, -1, 87, + 117, -3, -1, 102, 71, -1, 116, 101, -3, -1, 86, 55, -3, -1, 115, + 85, 39, -7, -3, -1, 114, 70, -1, 100, 23, -5, -1, 113, -1, 7, + 112, -1, 54, 99, -13, -9, -3, -1, 69, 84, -1, 68, -1, 6, 5, + -1, 38, 98, -5, -1, 97, -1, 22, 96, -3, -1, 53, 83, -1, 37, + 82, -17, -7, -3, -1, 21, 81, -1, 52, 67, -5, -3, -1, 80, 4, + 36, -1, 66, 20, -3, -1, 51, 65, -1, 35, 50, -11, -7, -5, -3, + -1, 64, 3, 48, 19, -1, 49, 34, -1, 18, 33, -7, -5, -3, -1, + 2, 32, 0, 17, -1, 1, 16 +}; + +static short tab13[] = +{ +-509,-503,-475,-405,-333,-265,-205,-153,-115, -83, -53, -35, -21, -13, -9, + -7, -5, -3, -1, 254, 252, 253, 237, 255, -1, 239, 223, -3, -1, 238, + 207, -1, 222, 191, -9, -3, -1, 251, 206, -1, 220, -1, 175, 233, -1, + 236, 221, -9, -5, -3, -1, 250, 205, 190, -1, 235, 159, -3, -1, 249, + 234, -1, 189, 219, -17, -9, -3, -1, 143, 248, -1, 204, -1, 174, 158, + -5, -1, 142, -1, 127, 126, 247, -5, -1, 218, -1, 173, 188, -3, -1, + 203, 246, 111, -15, -7, -3, -1, 232, 95, -1, 157, 217, -3, -1, 245, + 231, -1, 172, 187, -9, -3, -1, 79, 244, -3, -1, 202, 230, 243, -1, + 63, -1, 141, 216, -21, -9, -3, -1, 47, 242, -3, -1, 110, 156, 15, + -5, -3, -1, 201, 94, 171, -3, -1, 125, 215, 78, -11, -5, -3, -1, + 200, 214, 62, -1, 185, -1, 155, 170, -1, 31, 241, -23, -13, -5, -1, + 240, -1, 186, 229, -3, -1, 228, 140, -1, 109, 227, -5, -1, 226, -1, + 46, 14, -1, 30, 225, -15, -7, -3, -1, 224, 93, -1, 213, 124, -3, + -1, 199, 77, -1, 139, 184, -7, -3, -1, 212, 154, -1, 169, 108, -1, + 198, 61, -37, -21, -9, -5, -3, -1, 211, 123, 45, -1, 210, 29, -5, + -1, 183, -1, 92, 197, -3, -1, 153, 122, 195, -7, -5, -3, -1, 167, + 151, 75, 209, -3, -1, 13, 208, -1, 138, 168, -11, -7, -3, -1, 76, + 196, -1, 107, 182, -1, 60, 44, -3, -1, 194, 91, -3, -1, 181, 137, + 28, -43, -23, -11, -5, -1, 193, -1, 152, 12, -1, 192, -1, 180, 106, + -5, -3, -1, 166, 121, 59, -1, 179, -1, 136, 90, -11, -5, -1, 43, + -1, 165, 105, -1, 164, -1, 120, 135, -5, -1, 148, -1, 119, 118, 178, + -11, -3, -1, 27, 177, -3, -1, 11, 176, -1, 150, 74, -7, -3, -1, + 58, 163, -1, 89, 149, -1, 42, 162, -47, -23, -9, -3, -1, 26, 161, + -3, -1, 10, 104, 160, -5, -3, -1, 134, 73, 147, -3, -1, 57, 88, + -1, 133, 103, -9, -3, -1, 41, 146, -3, -1, 87, 117, 56, -5, -1, + 131, -1, 102, 71, -3, -1, 116, 86, -1, 101, 115, -11, -3, -1, 25, + 145, -3, -1, 9, 144, -1, 72, 132, -7, -5, -1, 114, -1, 70, 100, + 40, -1, 130, 24, -41, -27, -11, -5, -3, -1, 55, 39, 23, -1, 113, + -1, 85, 7, -7, -3, -1, 112, 54, -1, 99, 69, -3, -1, 84, 38, + -1, 98, 53, -5, -1, 129, -1, 8, 128, -3, -1, 22, 97, -1, 6, + 96, -13, -9, -5, -3, -1, 83, 68, 37, -1, 82, 5, -1, 21, 81, + -7, -3, -1, 52, 67, -1, 80, 36, -3, -1, 66, 51, 20, -19, -11, + -5, -1, 65, -1, 4, 64, -3, -1, 35, 50, 19, -3, -1, 49, 3, + -1, 48, 34, -3, -1, 18, 33, -1, 2, 32, -3, -1, 17, 1, 16, + 0 +}; + +static short tab15[] = +{ +-495,-445,-355,-263,-183,-115, -77, -43, -27, -13, -7, -3, -1, 255, 239, + -1, 254, 223, -1, 238, -1, 253, 207, -7, -3, -1, 252, 222, -1, 237, + 191, -1, 251, -1, 206, 236, -7, -3, -1, 221, 175, -1, 250, 190, -3, + -1, 235, 205, -1, 220, 159, -15, -7, -3, -1, 249, 234, -1, 189, 219, + -3, -1, 143, 248, -1, 204, 158, -7, -3, -1, 233, 127, -1, 247, 173, + -3, -1, 218, 188, -1, 111, -1, 174, 15, -19, -11, -3, -1, 203, 246, + -3, -1, 142, 232, -1, 95, 157, -3, -1, 245, 126, -1, 231, 172, -9, + -3, -1, 202, 187, -3, -1, 217, 141, 79, -3, -1, 244, 63, -1, 243, + 216, -33, -17, -9, -3, -1, 230, 47, -1, 242, -1, 110, 240, -3, -1, + 31, 241, -1, 156, 201, -7, -3, -1, 94, 171, -1, 186, 229, -3, -1, + 125, 215, -1, 78, 228, -15, -7, -3, -1, 140, 200, -1, 62, 109, -3, + -1, 214, 227, -1, 155, 185, -7, -3, -1, 46, 170, -1, 226, 30, -5, + -1, 225, -1, 14, 224, -1, 93, 213, -45, -25, -13, -7, -3, -1, 124, + 199, -1, 77, 139, -1, 212, -1, 184, 154, -7, -3, -1, 169, 108, -1, + 198, 61, -1, 211, 210, -9, -5, -3, -1, 45, 13, 29, -1, 123, 183, + -5, -1, 209, -1, 92, 208, -1, 197, 138, -17, -7, -3, -1, 168, 76, + -1, 196, 107, -5, -1, 182, -1, 153, 12, -1, 60, 195, -9, -3, -1, + 122, 167, -1, 166, -1, 192, 11, -1, 194, -1, 44, 91, -55, -29, -15, + -7, -3, -1, 181, 28, -1, 137, 152, -3, -1, 193, 75, -1, 180, 106, + -5, -3, -1, 59, 121, 179, -3, -1, 151, 136, -1, 43, 90, -11, -5, + -1, 178, -1, 165, 27, -1, 177, -1, 176, 105, -7, -3, -1, 150, 74, + -1, 164, 120, -3, -1, 135, 58, 163, -17, -7, -3, -1, 89, 149, -1, + 42, 162, -3, -1, 26, 161, -3, -1, 10, 160, 104, -7, -3, -1, 134, + 73, -1, 148, 57, -5, -1, 147, -1, 119, 9, -1, 88, 133, -53, -29, + -13, -7, -3, -1, 41, 103, -1, 118, 146, -1, 145, -1, 25, 144, -7, + -3, -1, 72, 132, -1, 87, 117, -3, -1, 56, 131, -1, 102, 71, -7, + -3, -1, 40, 130, -1, 24, 129, -7, -3, -1, 116, 8, -1, 128, 86, + -3, -1, 101, 55, -1, 115, 70, -17, -7, -3, -1, 39, 114, -1, 100, + 23, -3, -1, 85, 113, -3, -1, 7, 112, 54, -7, -3, -1, 99, 69, + -1, 84, 38, -3, -1, 98, 22, -3, -1, 6, 96, 53, -33, -19, -9, + -5, -1, 97, -1, 83, 68, -1, 37, 82, -3, -1, 21, 81, -3, -1, + 5, 80, 52, -7, -3, -1, 67, 36, -1, 66, 51, -1, 65, -1, 20, + 4, -9, -3, -1, 35, 50, -3, -1, 64, 3, 19, -3, -1, 49, 48, + 34, -9, -7, -3, -1, 18, 33, -1, 2, 32, 17, -3, -1, 1, 16, + 0 +}; + +static short tab16[] = +{ +-509,-503,-461,-323,-103, -37, -27, -15, -7, -3, -1, 239, 254, -1, 223, + 253, -3, -1, 207, 252, -1, 191, 251, -5, -1, 175, -1, 250, 159, -3, + -1, 249, 248, 143, -7, -3, -1, 127, 247, -1, 111, 246, 255, -9, -5, + -3, -1, 95, 245, 79, -1, 244, 243, -53, -1, 240, -1, 63, -29, -19, + -13, -7, -5, -1, 206, -1, 236, 221, 222, -1, 233, -1, 234, 217, -1, + 238, -1, 237, 235, -3, -1, 190, 205, -3, -1, 220, 219, 174, -11, -5, + -1, 204, -1, 173, 218, -3, -1, 126, 172, 202, -5, -3, -1, 201, 125, + 94, 189, 242, -93, -5, -3, -1, 47, 15, 31, -1, 241, -49, -25, -13, + -5, -1, 158, -1, 188, 203, -3, -1, 142, 232, -1, 157, 231, -7, -3, + -1, 187, 141, -1, 216, 110, -1, 230, 156, -13, -7, -3, -1, 171, 186, + -1, 229, 215, -1, 78, -1, 228, 140, -3, -1, 200, 62, -1, 109, -1, + 214, 155, -19, -11, -5, -3, -1, 185, 170, 225, -1, 212, -1, 184, 169, + -5, -1, 123, -1, 183, 208, 227, -7, -3, -1, 14, 224, -1, 93, 213, + -3, -1, 124, 199, -1, 77, 139, -75, -45, -27, -13, -7, -3, -1, 154, + 108, -1, 198, 61, -3, -1, 92, 197, 13, -7, -3, -1, 138, 168, -1, + 153, 76, -3, -1, 182, 122, 60, -11, -5, -3, -1, 91, 137, 28, -1, + 192, -1, 152, 121, -1, 226, -1, 46, 30, -15, -7, -3, -1, 211, 45, + -1, 210, 209, -5, -1, 59, -1, 151, 136, 29, -7, -3, -1, 196, 107, + -1, 195, 167, -1, 44, -1, 194, 181, -23, -13, -7, -3, -1, 193, 12, + -1, 75, 180, -3, -1, 106, 166, 179, -5, -3, -1, 90, 165, 43, -1, + 178, 27, -13, -5, -1, 177, -1, 11, 176, -3, -1, 105, 150, -1, 74, + 164, -5, -3, -1, 120, 135, 163, -3, -1, 58, 89, 42, -97, -57, -33, + -19, -11, -5, -3, -1, 149, 104, 161, -3, -1, 134, 119, 148, -5, -3, + -1, 73, 87, 103, 162, -5, -1, 26, -1, 10, 160, -3, -1, 57, 147, + -1, 88, 133, -9, -3, -1, 41, 146, -3, -1, 118, 9, 25, -5, -1, + 145, -1, 144, 72, -3, -1, 132, 117, -1, 56, 131, -21, -11, -5, -3, + -1, 102, 40, 130, -3, -1, 71, 116, 24, -3, -1, 129, 128, -3, -1, + 8, 86, 55, -9, -5, -1, 115, -1, 101, 70, -1, 39, 114, -5, -3, + -1, 100, 85, 7, 23, -23, -13, -5, -1, 113, -1, 112, 54, -3, -1, + 99, 69, -1, 84, 38, -3, -1, 98, 22, -1, 97, -1, 6, 96, -9, + -5, -1, 83, -1, 53, 68, -1, 37, 82, -1, 81, -1, 21, 5, -33, + -23, -13, -7, -3, -1, 52, 67, -1, 80, 36, -3, -1, 66, 51, 20, + -5, -1, 65, -1, 4, 64, -1, 35, 50, -3, -1, 19, 49, -3, -1, + 3, 48, 34, -3, -1, 18, 33, -1, 2, 32, -3, -1, 17, 1, 16, + 0 +}; + +static short tab24[] = +{ +-451,-117, -43, -25, -15, -7, -3, -1, 239, 254, -1, 223, 253, -3, -1, + 207, 252, -1, 191, 251, -5, -1, 250, -1, 175, 159, -1, 249, 248, -9, + -5, -3, -1, 143, 127, 247, -1, 111, 246, -3, -1, 95, 245, -1, 79, + 244, -71, -7, -3, -1, 63, 243, -1, 47, 242, -5, -1, 241, -1, 31, + 240, -25, -9, -1, 15, -3, -1, 238, 222, -1, 237, 206, -7, -3, -1, + 236, 221, -1, 190, 235, -3, -1, 205, 220, -1, 174, 234, -15, -7, -3, + -1, 189, 219, -1, 204, 158, -3, -1, 233, 173, -1, 218, 188, -7, -3, + -1, 203, 142, -1, 232, 157, -3, -1, 217, 126, -1, 231, 172, 255,-235, +-143, -77, -45, -25, -15, -7, -3, -1, 202, 187, -1, 141, 216, -5, -3, + -1, 14, 224, 13, 230, -5, -3, -1, 110, 156, 201, -1, 94, 186, -9, + -5, -1, 229, -1, 171, 125, -1, 215, 228, -3, -1, 140, 200, -3, -1, + 78, 46, 62, -15, -7, -3, -1, 109, 214, -1, 227, 155, -3, -1, 185, + 170, -1, 226, 30, -7, -3, -1, 225, 93, -1, 213, 124, -3, -1, 199, + 77, -1, 139, 184, -31, -15, -7, -3, -1, 212, 154, -1, 169, 108, -3, + -1, 198, 61, -1, 211, 45, -7, -3, -1, 210, 29, -1, 123, 183, -3, + -1, 209, 92, -1, 197, 138, -17, -7, -3, -1, 168, 153, -1, 76, 196, + -3, -1, 107, 182, -3, -1, 208, 12, 60, -7, -3, -1, 195, 122, -1, + 167, 44, -3, -1, 194, 91, -1, 181, 28, -57, -35, -19, -7, -3, -1, + 137, 152, -1, 193, 75, -5, -3, -1, 192, 11, 59, -3, -1, 176, 10, + 26, -5, -1, 180, -1, 106, 166, -3, -1, 121, 151, -3, -1, 160, 9, + 144, -9, -3, -1, 179, 136, -3, -1, 43, 90, 178, -7, -3, -1, 165, + 27, -1, 177, 105, -1, 150, 164, -17, -9, -5, -3, -1, 74, 120, 135, + -1, 58, 163, -3, -1, 89, 149, -1, 42, 162, -7, -3, -1, 161, 104, + -1, 134, 119, -3, -1, 73, 148, -1, 57, 147, -63, -31, -15, -7, -3, + -1, 88, 133, -1, 41, 103, -3, -1, 118, 146, -1, 25, 145, -7, -3, + -1, 72, 132, -1, 87, 117, -3, -1, 56, 131, -1, 102, 40, -17, -7, + -3, -1, 130, 24, -1, 71, 116, -5, -1, 129, -1, 8, 128, -1, 86, + 101, -7, -5, -1, 23, -1, 7, 112, 115, -3, -1, 55, 39, 114, -15, + -7, -3, -1, 70, 100, -1, 85, 113, -3, -1, 54, 99, -1, 69, 84, + -7, -3, -1, 38, 98, -1, 22, 97, -5, -3, -1, 6, 96, 53, -1, + 83, 68, -51, -37, -23, -15, -9, -3, -1, 37, 82, -1, 21, -1, 5, + 80, -1, 81, -1, 52, 67, -3, -1, 36, 66, -1, 51, 20, -9, -5, + -1, 65, -1, 4, 64, -1, 35, 50, -1, 19, 49, -7, -5, -3, -1, + 3, 48, 34, 18, -1, 33, -1, 2, 32, -3, -1, 17, 1, -1, 16, + 0 +}; + +static short tab_c0[] = +{ + -29, -21, -13, -7, -3, -1, 11, 15, -1, 13, 14, -3, -1, 7, 5, + 9, -3, -1, 6, 3, -1, 10, 12, -3, -1, 2, 1, -1, 4, 8, + 0 +}; + +static short tab_c1[] = +{ + -15, -7, -3, -1, 15, 14, -1, 13, 12, -3, -1, 11, 10, -1, 9, + 8, -7, -3, -1, 7, 6, -1, 5, 4, -3, -1, 3, 2, -1, 1, + 0 +}; + + + +static struct newhuff ht[] = +{ + { /* 0 */ 0 , tab0 } , + { /* 2 */ 0 , tab1 } , + { /* 3 */ 0 , tab2 } , + { /* 3 */ 0 , tab3 } , + { /* 0 */ 0 , tab0 } , + { /* 4 */ 0 , tab5 } , + { /* 4 */ 0 , tab6 } , + { /* 6 */ 0 , tab7 } , + { /* 6 */ 0 , tab8 } , + { /* 6 */ 0 , tab9 } , + { /* 8 */ 0 , tab10 } , + { /* 8 */ 0 , tab11 } , + { /* 8 */ 0 , tab12 } , + { /* 16 */ 0 , tab13 } , + { /* 0 */ 0 , tab0 } , + { /* 16 */ 0 , tab15 } , + + { /* 16 */ 1 , tab16 } , + { /* 16 */ 2 , tab16 } , + { /* 16 */ 3 , tab16 } , + { /* 16 */ 4 , tab16 } , + { /* 16 */ 6 , tab16 } , + { /* 16 */ 8 , tab16 } , + { /* 16 */ 10, tab16 } , + { /* 16 */ 13, tab16 } , + { /* 16 */ 4 , tab24 } , + { /* 16 */ 5 , tab24 } , + { /* 16 */ 6 , tab24 } , + { /* 16 */ 7 , tab24 } , + { /* 16 */ 8 , tab24 } , + { /* 16 */ 9 , tab24 } , + { /* 16 */ 11, tab24 } , + { /* 16 */ 13, tab24 } +}; + +static struct newhuff htc[] = +{ + { /* 1 , 1 , */ 0 , tab_c0 } , + { /* 1 , 1 , */ 0 , tab_c1 } +}; + + diff --git a/panda/src/mpg123/l2tables.h b/panda/src/mpg123/l2tables.h new file mode 100644 index 0000000000..643201ef23 --- /dev/null +++ b/panda/src/mpg123/l2tables.h @@ -0,0 +1,154 @@ +/* + * Layer 2 Alloc tables .. + * most other tables are calculated on program start (which is (of course) + * not ISO-conform) .. + * Layer-3 huffman table is in huffman.h + */ + +struct al_table alloc_0[] = { + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767} }; + +struct al_table alloc_1[] = { + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767} }; + +struct al_table alloc_2[] = { + {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, + {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, + {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, + {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63} }; + +struct al_table alloc_3[] = { + {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, + {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, + {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, + {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63} }; + +struct al_table alloc_4[] = { + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9} }; + diff --git a/panda/src/mpg123/layer1.c b/panda/src/mpg123/layer1.c new file mode 100644 index 0000000000..de63517d3c --- /dev/null +++ b/panda/src/mpg123/layer1.c @@ -0,0 +1,157 @@ +/* + * Mpeg Layer-1 audio decoder + * -------------------------- + * copyright (c) 1995 by Michael Hipp, All rights reserved. See also 'README' + * near unoptimzed ... + * + * may have a few bugs after last optimization ... + * + */ + +#include "mpg123.h" + +#include "getbits.h" + +void I_step_one(unsigned int balloc[], unsigned int scale_index[2][SBLIMIT],struct frame *fr) +{ + unsigned int *ba=balloc; + unsigned int *sca = (unsigned int *) scale_index; + + if(fr->stereo) { + int i; + int jsbound = fr->jsbound; + for (i=0;istereo) { + int jsbound = fr->jsbound; + register real *f0 = fraction[0]; + register real *f1 = fraction[1]; + ba = balloc; + for (sample=smpb,i=0;idown_sample_sblimit;i<32;i++) + fraction[0][i] = fraction[1][i] = 0.0; + } + else { + register real *f0 = fraction[0]; + ba = balloc; + for (sample=smpb,i=0;idown_sample_sblimit;i<32;i++) + fraction[0][i] = 0.0; + } +} + +int do_layer1(struct mpstr *mp,struct frame *fr,int outmode,struct audio_info_struct *ai) +{ + 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; + + 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= 0) + { + clip += (fr->synth_mono)( (real *) fraction[single],pcm_sample,&pcm_point); + } + else { + int p1 = pcm_point; + clip += (fr->synth)( (real *) fraction[0],0,pcm_sample,&p1); + clip += (fr->synth)( (real *) fraction[1],1,pcm_sample,&pcm_point); + } + + if(pcm_point >= audiobufsize) + audio_flush(outmode,ai); + } + + return clip; +} + + diff --git a/panda/src/mpg123/layer2.c b/panda/src/mpg123/layer2.c new file mode 100644 index 0000000000..7bb270fdad --- /dev/null +++ b/panda/src/mpg123/layer2.c @@ -0,0 +1,304 @@ +/* + * Mpeg Layer-2 audio decoder + * -------------------------- + * copyright (c) 1995 by Michael Hipp, All rights reserved. See also 'README' + * + */ + +#include "mpg123.h" +#include "l2tables.h" + +#include "getbits.h" + +static int grp_3tab[32 * 3] = { 0, }; /* used: 27 */ +static int grp_5tab[128 * 3] = { 0, }; /* used: 125 */ +static int grp_9tab[1024 * 3] = { 0, }; /* used: 729 */ + +real muls[27][64]; /* also used by layer 1 */ + +void init_layer2(void) +{ + static double mulmul[27] = { + 0.0 , -2.0/3.0 , 2.0/3.0 , + 2.0/7.0 , 2.0/15.0 , 2.0/31.0, 2.0/63.0 , 2.0/127.0 , 2.0/255.0 , + 2.0/511.0 , 2.0/1023.0 , 2.0/2047.0 , 2.0/4095.0 , 2.0/8191.0 , + 2.0/16383.0 , 2.0/32767.0 , 2.0/65535.0 , + -4.0/5.0 , -2.0/5.0 , 2.0/5.0, 4.0/5.0 , + -8.0/9.0 , -4.0/9.0 , -2.0/9.0 , 2.0/9.0 , 4.0/9.0 , 8.0/9.0 }; + static int base[3][9] = { + { 1 , 0, 2 , } , + { 17, 18, 0 , 19, 20 , } , + { 21, 1, 22, 23, 0, 24, 25, 2, 26 } }; + int i,j,k,l,len; + real *table; + static int tablen[3] = { 3 , 5 , 9 }; + static int *itable,*tables[3] = { grp_3tab , grp_5tab , grp_9tab }; + + for(i=0;i<3;i++) + { + itable = tables[i]; + len = tablen[i]; + for(j=0;jstereo-1; + int sblimit = fr->II_sblimit; + int jsbound = fr->jsbound; + int sblimit2 = fr->II_sblimit<alloc; + int i; + static unsigned int scfsi_buf[64]; + unsigned int *scfsi,*bita; + int sc,step; + + bita = bit_alloc; + if(stereo) + { + for (i=jsbound;i;i--,alloc1+=(1<bits); + *bita++ = (char) getbits(step); + } + for (i=sblimit-jsbound;i;i--,alloc1+=(1<bits); + bita[1] = bita[0]; + bita+=2; + } + bita = bit_alloc; + scfsi=scfsi_buf; + for (i=sblimit2;i;i--) + if (*bita++) + *scfsi++ = (char) getbits_fast(2); + } + else /* mono */ + { + for (i=sblimit;i;i--,alloc1+=(1<bits); + bita = bit_alloc; + scfsi=scfsi_buf; + for (i=sblimit;i;i--) + if (*bita++) + *scfsi++ = (char) getbits_fast(2); + } + + bita = bit_alloc; + scfsi=scfsi_buf; + for (i=sblimit2;i;i--) + if (*bita++) + switch (*scfsi++) + { + case 0: + *scale++ = getbits_fast(6); + *scale++ = getbits_fast(6); + *scale++ = getbits_fast(6); + break; + case 1 : + *scale++ = sc = getbits_fast(6); + *scale++ = sc; + *scale++ = getbits_fast(6); + break; + case 2: + *scale++ = sc = getbits_fast(6); + *scale++ = sc; + *scale++ = sc; + break; + default: /* case 3 */ + *scale++ = getbits_fast(6); + *scale++ = sc = getbits_fast(6); + *scale++ = sc; + break; + } + +} + +void II_step_two(unsigned int *bit_alloc,real fraction[2][4][SBLIMIT],int *scale,struct frame *fr,int x1) +{ + int i,j,k,ba; + int stereo = fr->stereo; + int sblimit = fr->II_sblimit; + int jsbound = fr->jsbound; + struct al_table *alloc2,*alloc1 = fr->alloc; + unsigned int *bita=bit_alloc; + int d1,step; + + for (i=0;ibits; + for (j=0;jbits; + if( (d1=alloc2->d) < 0) + { + real cm=muls[k][scale[x1]]; + fraction[j][0][i] = ((real) ((int)getbits(k) + d1)) * cm; + fraction[j][1][i] = ((real) ((int)getbits(k) + d1)) * cm; + fraction[j][2][i] = ((real) ((int)getbits(k) + d1)) * cm; + } + else + { + static int *table[] = { 0,0,0,grp_3tab,0,grp_5tab,0,0,0,grp_9tab }; + unsigned int idx,*tab,m=scale[x1]; + idx = (unsigned int) getbits(k); + tab = (unsigned int *) (table[d1] + idx + idx + idx); + fraction[j][0][i] = muls[*tab++][m]; + fraction[j][1][i] = muls[*tab++][m]; + fraction[j][2][i] = muls[*tab][m]; + } + scale+=3; + } + else + fraction[j][0][i] = fraction[j][1][i] = fraction[j][2][i] = 0.0; + } + } + + for (i=jsbound;ibits; + bita++; /* channel 1 and channel 2 bitalloc are the same */ + if ( (ba=*bita++) ) + { + k=(alloc2 = alloc1+ba)->bits; + if( (d1=alloc2->d) < 0) + { + real cm; + cm=muls[k][scale[x1+3]]; + fraction[1][0][i] = (fraction[0][0][i] = (real) ((int)getbits(k) + d1) ) * cm; + fraction[1][1][i] = (fraction[0][1][i] = (real) ((int)getbits(k) + d1) ) * cm; + fraction[1][2][i] = (fraction[0][2][i] = (real) ((int)getbits(k) + d1) ) * cm; + cm=muls[k][scale[x1]]; + fraction[0][0][i] *= cm; fraction[0][1][i] *= cm; fraction[0][2][i] *= cm; + } + else + { + static int *table[] = { 0,0,0,grp_3tab,0,grp_5tab,0,0,0,grp_9tab }; + unsigned int idx,*tab,m1,m2; + m1 = scale[x1]; m2 = scale[x1+3]; + idx = (unsigned int) getbits(k); + tab = (unsigned int *) (table[d1] + idx + idx + idx); + fraction[0][0][i] = muls[*tab][m1]; fraction[1][0][i] = muls[*tab++][m2]; + fraction[0][1][i] = muls[*tab][m1]; fraction[1][1][i] = muls[*tab++][m2]; + fraction[0][2][i] = muls[*tab][m1]; fraction[1][2][i] = muls[*tab][m2]; + } + scale+=6; + } + else { + fraction[0][0][i] = fraction[0][1][i] = fraction[0][2][i] = + fraction[1][0][i] = fraction[1][1][i] = fraction[1][2][i] = 0.0; + } +/* + should we use individual scalefac for channel 2 or + is the current way the right one , where we just copy channel 1 to + channel 2 ?? + The current 'strange' thing is, that we throw away the scalefac + values for the second channel ...!! +-> changed .. now we use the scalefac values of channel one !! +*/ + } + + if(sblimit > (fr->down_sample_sblimit) ) + sblimit = fr->down_sample_sblimit; + + for(i=sblimit;ilsf) + table = 4; + else + table = translate[fr->sampling_frequency][2-fr->stereo][fr->bitrate_index]; + sblim = sblims[table]; + + fr->alloc = tables[table]; + fr->II_sblimit = sblim; +} + + +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>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; +} + + diff --git a/panda/src/mpg123/layer3.c b/panda/src/mpg123/layer3.c new file mode 100644 index 0000000000..250d03ca1c --- /dev/null +++ b/panda/src/mpg123/layer3.c @@ -0,0 +1,1813 @@ +/* + * Mpeg Layer-3 audio decoder + * -------------------------- + * copyright (c) 1995-1999 by Michael Hipp. + * All rights reserved. See also 'README' + * + * Optimize-TODO: put short bands into the band-field without the stride + * of 3 reals + * Length-optimze: unify long and short band code where it is possible + */ + +#include +#include "mpg123.h" +#include "huffman.h" + +#include "common.h" + +#include "getbits.h" + +static real ispow[8207]; +static real aa_ca[8],aa_cs[8]; +static real COS1[12][6]; +static real win[4][36]; +static real win1[4][36]; +static real gainpow2[256+118+4]; + +/* non static for external 3dnow functions */ +real COS9[9]; +static real COS6_1,COS6_2; +real tfcos36[9]; + +static real tfcos12[3]; +#define NEW_DCT9 +#ifdef NEW_DCT9 +static real cos9[3],cos18[3]; +#endif + +struct bandInfoStruct { + int longIdx[23]; + int longDiff[22]; + int shortIdx[14]; + int shortDiff[13]; +}; + +int longLimit[9][23]; +int shortLimit[9][14]; + +struct bandInfoStruct bandInfo[9] = { + +/* MPEG 1.0 */ + { {0,4,8,12,16,20,24,30,36,44,52,62,74, 90,110,134,162,196,238,288,342,418,576}, + {4,4,4,4,4,4,6,6,8, 8,10,12,16,20,24,28,34,42,50,54, 76,158}, + {0,4*3,8*3,12*3,16*3,22*3,30*3,40*3,52*3,66*3, 84*3,106*3,136*3,192*3}, + {4,4,4,4,6,8,10,12,14,18,22,30,56} } , + + { {0,4,8,12,16,20,24,30,36,42,50,60,72, 88,106,128,156,190,230,276,330,384,576}, + {4,4,4,4,4,4,6,6,6, 8,10,12,16,18,22,28,34,40,46,54, 54,192}, + {0,4*3,8*3,12*3,16*3,22*3,28*3,38*3,50*3,64*3, 80*3,100*3,126*3,192*3}, + {4,4,4,4,6,6,10,12,14,16,20,26,66} } , + + { {0,4,8,12,16,20,24,30,36,44,54,66,82,102,126,156,194,240,296,364,448,550,576} , + {4,4,4,4,4,4,6,6,8,10,12,16,20,24,30,38,46,56,68,84,102, 26} , + {0,4*3,8*3,12*3,16*3,22*3,30*3,42*3,58*3,78*3,104*3,138*3,180*3,192*3} , + {4,4,4,4,6,8,12,16,20,26,34,42,12} } , + +/* MPEG 2.0 */ + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54 } , + {0,4*3,8*3,12*3,18*3,24*3,32*3,42*3,56*3,74*3,100*3,132*3,174*3,192*3} , + {4,4,4,6,6,8,10,14,18,26,32,42,18 } } , +/* + { {0,6,12,18,24,30,36,44,54,66,80,96,114,136,162,194,232,278,330,394,464,540,576}, + {6,6,6,6,6,6,8,10,12,14,16,18,22,26,32,38,46,52,64,70,76,36 } , +*/ +/* changed 19th value fropm 330 to 332 */ + { {0,6,12,18,24,30,36,44,54,66,80,96,114,136,162,194,232,278,332,394,464,540,576}, + {6,6,6,6,6,6,8,10,12,14,16,18,22,26,32,38,46,54,62,70,76,36 } , + {0,4*3,8*3,12*3,18*3,26*3,36*3,48*3,62*3,80*3,104*3,136*3,180*3,192*3} , + {4,4,4,6,8,10,12,14,18,24,32,44,12 } } , + + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54 }, + {0,4*3,8*3,12*3,18*3,26*3,36*3,48*3,62*3,80*3,104*3,134*3,174*3,192*3}, + {4,4,4,6,8,10,12,14,18,24,30,40,18 } } , +/* MPEG 2.5 */ + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576} , + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54}, + {0,12,24,36,54,78,108,144,186,240,312,402,522,576}, + {4,4,4,6,8,10,12,14,18,24,30,40,18} }, + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576} , + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54}, + {0,12,24,36,54,78,108,144,186,240,312,402,522,576}, + {4,4,4,6,8,10,12,14,18,24,30,40,18} }, + { {0,12,24,36,48,60,72,88,108,132,160,192,232,280,336,400,476,566,568,570,572,574,576}, + {12,12,12,12,12,12,16,20,24,28,32,40,48,56,64,76,90,2,2,2,2,2}, + {0, 24, 48, 72,108,156,216,288,372,480,486,492,498,576}, + {8,8,8,12,16,20,24,28,36,2,2,2,26} } , +}; + +static int mapbuf0[9][152]; +static int mapbuf1[9][156]; +static int mapbuf2[9][44]; +static int *map[9][3]; +static int *mapend[9][3]; + +static unsigned int n_slen2[512]; /* MPEG 2.0 slen for 'normal' mode */ +static unsigned int i_slen2[256]; /* MPEG 2.0 slen for intensity stereo */ + +static real tan1_1[16],tan2_1[16],tan1_2[16],tan2_2[16]; +static real pow1_1[2][16],pow2_1[2][16],pow1_2[2][16],pow2_2[2][16]; + +/* + * init tables for layer-3 + */ +void init_layer3(int down_sample_sblimit) +{ + int i,j,k,l; + + for(i=-256;i<118+4;i++) +#ifdef USE_MMX + if(!param.down_sample) + gainpow2[i+256] = 16384.0 * pow((double)2.0,-0.25 * (double) (i+210) ); + else +#endif + gainpow2[i+256] = pow((double)2.0,-0.25 * (double) (i+210) ); + + for(i=0;i<8207;i++) + ispow[i] = pow((double)i,(double)4.0/3.0); + + for (i=0;i<8;i++) { + static double Ci[8]={-0.6,-0.535,-0.33,-0.185,-0.095,-0.041,-0.0142,-0.0037}; + double sq=sqrt(1.0+Ci[i]*Ci[i]); + aa_cs[i] = 1.0/sq; + aa_ca[i] = Ci[i]/sq; + } + + for(i=0;i<18;i++) { + win[0][i] = win[1][i] = 0.5 * sin( M_PI / 72.0 * (double) (2*(i+0) +1) ) / cos ( M_PI * (double) (2*(i+0) +19) / 72.0 ); + win[0][i+18] = win[3][i+18] = 0.5 * sin( M_PI / 72.0 * (double) (2*(i+18)+1) ) / cos ( M_PI * (double) (2*(i+18)+19) / 72.0 ); + } + for(i=0;i<6;i++) { + win[1][i+18] = 0.5 / cos ( M_PI * (double) (2*(i+18)+19) / 72.0 ); + win[3][i+12] = 0.5 / cos ( M_PI * (double) (2*(i+12)+19) / 72.0 ); + win[1][i+24] = 0.5 * sin( M_PI / 24.0 * (double) (2*i+13) ) / cos ( M_PI * (double) (2*(i+24)+19) / 72.0 ); + win[1][i+30] = win[3][i] = 0.0; + win[3][i+6 ] = 0.5 * sin( M_PI / 24.0 * (double) (2*i+1) ) / cos ( M_PI * (double) (2*(i+6 )+19) / 72.0 ); + } + + for(i=0;i<9;i++) + COS9[i] = cos( M_PI / 18.0 * (double) i); + + for(i=0;i<9;i++) + tfcos36[i] = 0.5 / cos ( M_PI * (double) (i*2+1) / 36.0 ); + for(i=0;i<3;i++) + tfcos12[i] = 0.5 / cos ( M_PI * (double) (i*2+1) / 12.0 ); + + COS6_1 = cos( M_PI / 6.0 * (double) 1); + COS6_2 = cos( M_PI / 6.0 * (double) 2); + +#ifdef NEW_DCT9 + cos9[0] = cos(1.0*M_PI/9.0); + cos9[1] = cos(5.0*M_PI/9.0); + cos9[2] = cos(7.0*M_PI/9.0); + cos18[0] = cos(1.0*M_PI/18.0); + cos18[1] = cos(11.0*M_PI/18.0); + cos18[2] = cos(13.0*M_PI/18.0); +#endif + + for(i=0;i<12;i++) { + win[2][i] = 0.5 * sin( M_PI / 24.0 * (double) (2*i+1) ) / cos ( M_PI * (double) (2*i+7) / 24.0 ); + for(j=0;j<6;j++) + COS1[i][j] = cos( M_PI / 24.0 * (double) ((2*i+7)*(2*j+1)) ); + } + + for(j=0;j<4;j++) { + static int len[4] = { 36,36,12,36 }; + for(i=0;i 0) { + if( i & 1 ) + p1 = pow(base,(i+1.0)*0.5); + else + p2 = pow(base,i*0.5); + } + pow1_1[j][i] = p1; + pow2_1[j][i] = p2; + pow1_2[j][i] = M_SQRT2 * p1; + pow2_2[j][i] = M_SQRT2 * p2; + } + } + + for(j=0;j<9;j++) { + struct bandInfoStruct *bi = &bandInfo[j]; + int *mp; + int cb,lwin; + int *bdf; + + mp = map[j][0] = mapbuf0[j]; + bdf = bi->longDiff; + for(i=0,cb = 0; cb < 8 ; cb++,i+=*bdf++) { + *mp++ = (*bdf) >> 1; + *mp++ = i; + *mp++ = 3; + *mp++ = cb; + } + bdf = bi->shortDiff+3; + for(cb=3;cb<13;cb++) { + int l = (*bdf++) >> 1; + for(lwin=0;lwin<3;lwin++) { + *mp++ = l; + *mp++ = i + lwin; + *mp++ = lwin; + *mp++ = cb; + } + i += 6*l; + } + mapend[j][0] = mp; + + mp = map[j][1] = mapbuf1[j]; + bdf = bi->shortDiff+0; + for(i=0,cb=0;cb<13;cb++) { + int l = (*bdf++) >> 1; + for(lwin=0;lwin<3;lwin++) { + *mp++ = l; + *mp++ = i + lwin; + *mp++ = lwin; + *mp++ = cb; + } + i += 6*l; + } + mapend[j][1] = mp; + + mp = map[j][2] = mapbuf2[j]; + bdf = bi->longDiff; + for(cb = 0; cb < 22 ; cb++) { + *mp++ = (*bdf++) >> 1; + *mp++ = cb; + } + mapend[j][2] = mp; + + } + + for(j=0;j<9;j++) { + for(i=0;i<23;i++) { + longLimit[j][i] = (bandInfo[j].longIdx[i] - 1 + 8) / 18 + 1; + if(longLimit[j][i] > (down_sample_sblimit) ) + longLimit[j][i] = down_sample_sblimit; + } + for(i=0;i<14;i++) { + shortLimit[j][i] = (bandInfo[j].shortIdx[i] - 1) / 18 + 1; + if(shortLimit[j][i] > (down_sample_sblimit) ) + shortLimit[j][i] = down_sample_sblimit; + } + } + + for(i=0;i<5;i++) { + for(j=0;j<6;j++) { + for(k=0;k<6;k++) { + int n = k + j * 6 + i * 36; + i_slen2[n] = i|(j<<3)|(k<<6)|(3<<12); + } + } + } + for(i=0;i<4;i++) { + for(j=0;j<4;j++) { + for(k=0;k<4;k++) { + int n = k + j * 4 + i * 16; + i_slen2[n+180] = i|(j<<3)|(k<<6)|(4<<12); + } + } + } + for(i=0;i<4;i++) { + for(j=0;j<3;j++) { + int n = j + i * 3; + i_slen2[n+244] = i|(j<<3) | (5<<12); + n_slen2[n+500] = i|(j<<3) | (2<<12) | (1<<15); + } + } + + for(i=0;i<5;i++) { + for(j=0;j<5;j++) { + for(k=0;k<4;k++) { + for(l=0;l<4;l++) { + int n = l + k * 4 + j * 16 + i * 80; + n_slen2[n] = i|(j<<3)|(k<<6)|(l<<9)|(0<<12); + } + } + } + } + for(i=0;i<5;i++) { + for(j=0;j<5;j++) { + for(k=0;k<4;k++) { + int n = k + j * 4 + i * 20; + n_slen2[n+400] = i|(j<<3)|(k<<6)|(1<<12); + } + } + } +} + +/* + * read additional side information (for MPEG 1 and MPEG 2) + */ +static int III_get_side_info(struct III_sideinfo *si,int stereo, + int ms_stereo,long sfreq,int single,int lsf) +{ + int ch, gr; + int powdiff = (single == 3) ? 4 : 0; + + static const int tabs[2][5] = { { 2,9,5,3,4 } , { 1,8,1,2,9 } }; + const int *tab = tabs[lsf]; + + si->main_data_begin = getbits(tab[1]); + if (stereo == 1) + si->private_bits = getbits_fast(tab[2]); + else + si->private_bits = getbits_fast(tab[3]); + + if(!lsf) { + for (ch=0; chch[ch].gr[0].scfsi = -1; + si->ch[ch].gr[1].scfsi = getbits_fast(4); + } + } + + for (gr=0; grch[ch].gr[gr]); + + gr_info->part2_3_length = getbits(12); + gr_info->big_values = getbits(9); + if(gr_info->big_values > 288) { + fprintf(stderr,"big_values too large!\n"); + gr_info->big_values = 288; + } + gr_info->pow2gain = gainpow2+256 - getbits_fast(8) + powdiff; + if(ms_stereo) + gr_info->pow2gain += 2; + gr_info->scalefac_compress = getbits(tab[4]); + + if(get1bit()) { /* window switch flag */ + int i; + gr_info->block_type = getbits_fast(2); + gr_info->mixed_block_flag = get1bit(); + gr_info->table_select[0] = getbits_fast(5); + gr_info->table_select[1] = getbits_fast(5); + /* + * table_select[2] not needed, because there is no region2, + * but to satisfy some verifications tools we set it either. + */ + gr_info->table_select[2] = 0; + for(i=0;i<3;i++) + gr_info->full_gain[i] = gr_info->pow2gain + (getbits_fast(3)<<3); + + if(gr_info->block_type == 0) { + fprintf(stderr,"Blocktype == 0 and window-switching == 1 not allowed.\n"); + return 0; + } + + /* region_count/start parameters are implicit in this case. */ + if(!lsf || gr_info->block_type == 2) + gr_info->region1start = 36>>1; + else { +/* check this again for 2.5 and sfreq=8 */ + if(sfreq == 8) + gr_info->region1start = 108>>1; + else + gr_info->region1start = 54>>1; + } + gr_info->region2start = 576>>1; + } + else { + int i,r0c,r1c; + for (i=0; i<3; i++) + gr_info->table_select[i] = getbits_fast(5); + r0c = getbits_fast(4); + r1c = getbits_fast(3); + gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; + if(r0c + r1c + 2 > 22) + gr_info->region2start = 576>>1; + else + gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; + gr_info->block_type = 0; + gr_info->mixed_block_flag = 0; + } + if(!lsf) + gr_info->preflag = get1bit(); + gr_info->scalefac_scale = get1bit(); + gr_info->count1table_select = get1bit(); + } + } + + return !0; +} + +/* + * read scalefactors + */ +static int III_get_scale_factors_1(int *scf,struct gr_info_s *gr_info) +{ + static const unsigned char slen[2][16] = { + {0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4}, + {0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3} + }; + int numbits; + int num0 = slen[0][gr_info->scalefac_compress]; + int num1 = slen[1][gr_info->scalefac_compress]; + + if (gr_info->block_type == 2) { + int i=18; + numbits = (num0 + num1) * 18; + + if (gr_info->mixed_block_flag) { + for (i=8;i;i--) + *scf++ = getbits_fast(num0); + i = 9; + numbits -= num0; /* num0 * 17 + num1 * 18 */ + } + + for (;i;i--) + *scf++ = getbits_fast(num0); + for (i = 18; i; i--) + *scf++ = getbits_fast(num1); + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* short[13][0..2] = 0 */ + } + else { + int i; + int scfsi = gr_info->scfsi; + + if(scfsi < 0) { /* scfsi < 0 => granule == 0 */ + for(i=11;i;i--) + *scf++ = getbits_fast(num0); + for(i=10;i;i--) + *scf++ = getbits_fast(num1); + numbits = (num0 + num1) * 10 + num0; + *scf++ = 0; + } + else { + numbits = 0; + if(!(scfsi & 0x8)) { + for (i=0;i<6;i++) + *scf++ = getbits_fast(num0); + numbits += num0 * 6; + } + else { + scf += 6; + } + + if(!(scfsi & 0x4)) { + for (i=0;i<5;i++) + *scf++ = getbits_fast(num0); + numbits += num0 * 5; + } + else { + scf += 5; + } + + if(!(scfsi & 0x2)) { + for(i=0;i<5;i++) + *scf++ = getbits_fast(num1); + numbits += num1 * 5; + } + else { + scf += 5; + } + + if(!(scfsi & 0x1)) { + for (i=0;i<5;i++) + *scf++ = getbits_fast(num1); + numbits += num1 * 5; + } + else { + scf += 5; + } + *scf++ = 0; /* no l[21] in original sources */ + } + } + return numbits; +} + +static int III_get_scale_factors_2(int *scf,struct gr_info_s *gr_info,int i_stereo) +{ + unsigned char *pnt; + int i,j,n=0,numbits=0; + unsigned int slen; + + static unsigned char stab[3][6][4] = { + { { 6, 5, 5,5 } , { 6, 5, 7,3 } , { 11,10,0,0} , + { 7, 7, 7,0 } , { 6, 6, 6,3 } , { 8, 8,5,0} } , + { { 9, 9, 9,9 } , { 9, 9,12,6 } , { 18,18,0,0} , + {12,12,12,0 } , {12, 9, 9,6 } , { 15,12,9,0} } , + { { 6, 9, 9,9 } , { 6, 9,12,6 } , { 15,18,0,0} , + { 6,15,12,0 } , { 6,12, 9,6 } , { 6,18,9,0} } }; + + if(i_stereo) /* i_stereo AND second channel -> do_layer3() checks this */ + slen = i_slen2[gr_info->scalefac_compress>>1]; + else + slen = n_slen2[gr_info->scalefac_compress]; + + gr_info->preflag = (slen>>15) & 0x1; + + n = 0; + if( gr_info->block_type == 2 ) { + n++; + if(gr_info->mixed_block_flag) + n++; + } + + pnt = stab[n][(slen>>12)&0x7]; + + for(i=0;i<4;i++) { + int num = slen & 0x7; + slen >>= 3; + if(num) { + for(j=0;j<(int)(pnt[i]);j++) + *scf++ = getbits_fast(num); + numbits += pnt[i] * num; + } + else { + for(j=0;j<(int)(pnt[i]);j++) + *scf++ = 0; + } + } + + n = (n << 1) + 1; + for(i=0;iscalefac_scale; + real *xrpnt = (real *) xr; + int l[3],l3; + int part2remain = gr_info->part2_3_length - part2bits; + int *me; + + int num=getbitoffset(); + long mask; + /* we must split this, because for num==0 the shift is undefined if you do it in one step */ + mask = ((unsigned long) getbits(num))<big_values; + int region1 = gr_info->region1start; + int region2 = gr_info->region2start; + + l3 = ((576>>1)-bv)>>1; +/* + * we may lose the 'odd' bit here !! + * check this later again + */ + if(bv <= region1) { + l[0] = bv; l[1] = l[2] = 0; + } + else { + l[0] = region1; + if(bv <= region2) { + l[1] = bv - l[0]; l[2] = 0; + } + else { + l[1] = region2 - l[0]; l[2] = bv - region2; + } + } + } + + if(gr_info->block_type == 2) { + /* + * decoding with short or mixed mode BandIndex table + */ + int i,max[4]; + int step=0,lwin=3,cb=0; + register real v = 0.0; + register int *m,mc; + + if(gr_info->mixed_block_flag) { + max[3] = -1; + max[0] = max[1] = max[2] = 2; + m = map[sfreq][0]; + me = mapend[sfreq][0]; + } + else { + max[0] = max[1] = max[2] = max[3] = -1; + /* max[3] not really needed in this case */ + m = map[sfreq][1]; + me = mapend[sfreq][1]; + } + + mc = 0; + for(i=0;i<2;i++) { + int lp = l[i]; + struct newhuff *h = ht+gr_info->table_select[i]; + for(;lp;lp--,mc--) { + register int x,y; + if( (!mc) ) { + mc = *m++; + xrpnt = ((real *) xr) + (*m++); + lwin = *m++; + cb = *m++; + if(lwin == 3) { + v = gr_info->pow2gain[(*scf++) << shift]; + step = 1; + } + else { + v = gr_info->full_gain[lwin][(*scf++) << shift]; + step = 3; + } + } + { + register short *val = h->table; + REFRESH_MASK; + while((y=*val++)<0) { + if (mask < 0) + val -= y; + num--; + mask <<= 1; + } + x = y >> 4; + y &= 0xf; + } + if(x == 15 && h->linbits) { + max[lwin] = cb; + REFRESH_MASK; + x += ((unsigned long) mask) >> (BITSHIFT+8-h->linbits); + num -= h->linbits+1; + mask <<= h->linbits; + if(mask < 0) + *xrpnt = -ispow[x] * v; + else + *xrpnt = ispow[x] * v; + mask <<= 1; + } + else if(x) { + max[lwin] = cb; + if(mask < 0) + *xrpnt = -ispow[x] * v; + else + *xrpnt = ispow[x] * v; + num--; + mask <<= 1; + } + else + *xrpnt = 0.0; + xrpnt += step; + if(y == 15 && h->linbits) { + max[lwin] = cb; + REFRESH_MASK; + y += ((unsigned long) mask) >> (BITSHIFT+8-h->linbits); + num -= h->linbits+1; + mask <<= h->linbits; + if(mask < 0) + *xrpnt = -ispow[y] * v; + else + *xrpnt = ispow[y] * v; + mask <<= 1; + } + else if(y) { + max[lwin] = cb; + if(mask < 0) + *xrpnt = -ispow[y] * v; + else + *xrpnt = ispow[y] * v; + num--; + mask <<= 1; + } + else + *xrpnt = 0.0; + xrpnt += step; + } + } + + for(;l3 && (part2remain+num > 0);l3--) { + struct newhuff *h = htc+gr_info->count1table_select; + register short *val = h->table,a; + + REFRESH_MASK; + while((a=*val++)<0) { + if (mask < 0) + val -= a; + num--; + mask <<= 1; + } + if(part2remain+num <= 0) { + num -= part2remain+num; + break; + } + + for(i=0;i<4;i++) { + if(!(i & 1)) { + if(!mc) { + mc = *m++; + xrpnt = ((real *) xr) + (*m++); + lwin = *m++; + cb = *m++; + if(lwin == 3) { + v = gr_info->pow2gain[(*scf++) << shift]; + step = 1; + } + else { + v = gr_info->full_gain[lwin][(*scf++) << shift]; + step = 3; + } + } + mc--; + } + if( (a & (0x8>>i)) ) { + max[lwin] = cb; + if(part2remain+num <= 0) { + break; + } + if(mask < 0) + *xrpnt = -v; + else + *xrpnt = v; + num--; + mask <<= 1; + } + else + *xrpnt = 0.0; + xrpnt += step; + } + } + + if(lwin < 3) { /* short band? */ + while(1) { + for(;mc > 0;mc--) { + *xrpnt = 0.0; xrpnt += 3; /* short band -> step=3 */ + *xrpnt = 0.0; xrpnt += 3; + } + if(m >= me) + break; + mc = *m++; + xrpnt = ((real *) xr) + *m++; + if(*m++ == 0) + break; /* optimize: field will be set to zero at the end of the function */ + m++; /* cb */ + } + } + + gr_info->maxband[0] = max[0]+1; + gr_info->maxband[1] = max[1]+1; + gr_info->maxband[2] = max[2]+1; + gr_info->maxbandl = max[3]+1; + + { + int rmax = max[0] > max[1] ? max[0] : max[1]; + rmax = (rmax > max[2] ? rmax : max[2]) + 1; + gr_info->maxb = rmax ? shortLimit[sfreq][rmax] : longLimit[sfreq][max[3]+1]; + } + + } + else { + /* + * decoding with 'long' BandIndex table (block_type != 2) + */ + int *pretab = gr_info->preflag ? pretab1 : pretab2; + int i,max = -1; + int cb = 0; + int *m = map[sfreq][2]; + register real v = 0.0; + int mc = 0; + + /* + * long hash table values + */ + for(i=0;i<3;i++) { + int lp = l[i]; + struct newhuff *h = ht+gr_info->table_select[i]; + + for(;lp;lp--,mc--) { + int x,y; + + if(!mc) { + mc = *m++; + cb = *m++; + if(cb == 21) + v = 0.0; + else + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + + } + { + register short *val = h->table; + REFRESH_MASK; + while((y=*val++)<0) { + if (mask < 0) + val -= y; + num--; + mask <<= 1; + } + x = y >> 4; + y &= 0xf; + } + + if (x == 15 && h->linbits) { + max = cb; + REFRESH_MASK; + x += ((unsigned long) mask) >> (BITSHIFT+8-h->linbits); + num -= h->linbits+1; + mask <<= h->linbits; + if(mask < 0) + *xrpnt++ = -ispow[x] * v; + else + *xrpnt++ = ispow[x] * v; + mask <<= 1; + } + else if(x) { + max = cb; + if(mask < 0) + *xrpnt++ = -ispow[x] * v; + else + *xrpnt++ = ispow[x] * v; + num--; + mask <<= 1; + } + else + *xrpnt++ = 0.0; + + if (y == 15 && h->linbits) { + max = cb; + REFRESH_MASK; + y += ((unsigned long) mask) >> (BITSHIFT+8-h->linbits); + num -= h->linbits+1; + mask <<= h->linbits; + if(mask < 0) + *xrpnt++ = -ispow[y] * v; + else + *xrpnt++ = ispow[y] * v; + mask <<= 1; + } + else if(y) { + max = cb; + if(mask < 0) + *xrpnt++ = -ispow[y] * v; + else + *xrpnt++ = ispow[y] * v; + num--; + mask <<= 1; + } + else + *xrpnt++ = 0.0; + } + } + + /* + * short (count1table) values + */ + for(;l3 && (part2remain+num > 0);l3--) { + struct newhuff *h = htc+gr_info->count1table_select; + register short *val = h->table,a; + + REFRESH_MASK; + while((a=*val++)<0) { + if (mask < 0) + val -= a; + num--; + mask <<= 1; + } + if(part2remain+num <= 0) { + num -= part2remain+num; + break; + } + + for(i=0;i<4;i++) { + if(!(i & 1)) { + if(!mc) { + mc = *m++; + cb = *m++; + if(cb == 21) + v = 0.0; + else + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + } + mc--; + } + if ( (a & (0x8>>i)) ) { + max = cb; + if(part2remain+num <= 0) { + break; + } + if(mask < 0) + *xrpnt++ = -v; + else + *xrpnt++ = v; + num--; + mask <<= 1; + } + else + *xrpnt++ = 0.0; + } + } + + gr_info->maxbandl = max+1; + gr_info->maxb = longLimit[sfreq][gr_info->maxbandl]; + } + + part2remain += num; + backbits(num); + num = 0; + + while(xrpnt < &xr[SBLIMIT][0]) + *xrpnt++ = 0.0; + + while( part2remain > 16 ) { + getbits(16); /* Dismiss stuffing Bits */ + part2remain -= 16; + } + if(part2remain > 0) + getbits(part2remain); + else if(part2remain < 0) { + fprintf(stderr,"mpg123: Can't rewind stream by %d bits!\n",-part2remain); + return 1; /* -> error */ + } + return 0; +} + +/* + * III_stereo: calculate real channel values for Joint-I-Stereo-mode + */ +static void III_i_stereo(real xr_buf[2][SBLIMIT][SSLIMIT],int *scalefac, + struct gr_info_s *gr_info,int sfreq,int ms_stereo,int lsf) +{ + real (*xr)[SBLIMIT*SSLIMIT] = (real (*)[SBLIMIT*SSLIMIT] ) xr_buf; + struct bandInfoStruct *bi = &bandInfo[sfreq]; + + const real *tab1,*tab2; + + int tab; + static const real *tabs[3][2][2] = { + { { tan1_1,tan2_1 } , { tan1_2,tan2_2 } }, + { { pow1_1[0],pow2_1[0] } , { pow1_2[0],pow2_2[0] } } , + { { pow1_1[1],pow2_1[1] } , { pow1_2[1],pow2_2[1] } } + }; + + tab = lsf + (gr_info->scalefac_compress & lsf); + tab1 = tabs[tab][ms_stereo][0]; + tab2 = tabs[tab][ms_stereo][1]; +#if 0 + if(lsf) { + int p = gr_info->scalefac_compress & 0x1; + if(ms_stereo) { + tab1 = pow1_2[p]; tab2 = pow2_2[p]; + } + else { + tab1 = pow1_1[p]; tab2 = pow2_1[p]; + } + } + else { + if(ms_stereo) { + tab1 = tan1_2; tab2 = tan2_2; + } + else { + tab1 = tan1_1; tab2 = tan2_1; + } + } +#endif + + if (gr_info->block_type == 2) { + int lwin,do_l = 0; + if( gr_info->mixed_block_flag ) + do_l = 1; + + for (lwin=0;lwin<3;lwin++) { /* process each window */ + /* get first band with zero values */ + int is_p,sb,idx,sfb = gr_info->maxband[lwin]; /* sfb is minimal 3 for mixed mode */ + if(sfb > 3) + do_l = 0; + + for(;sfb<12;sfb++) { + is_p = scalefac[sfb*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + sb = bi->shortDiff[sfb]; + idx = bi->shortIdx[sfb] + lwin; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for (; sb > 0; sb--,idx+=3) { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + } + +#if 1 +/* in the original: copy 10 to 11 , here: copy 11 to 12 +maybe still wrong??? (copy 12 to 13?) */ + is_p = scalefac[11*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + sb = bi->shortDiff[12]; + idx = bi->shortIdx[12] + lwin; +#else + is_p = scalefac[10*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + sb = bi->shortDiff[11]; + idx = bi->shortIdx[11] + lwin; +#endif + if(is_p != 7) { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx+=3 ) { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + } /* end for(lwin; .. ; . ) */ + +/* also check l-part, if ALL bands in the three windows are 'empty' + * and mode = mixed_mode + */ + if (do_l) { + int sfb = gr_info->maxbandl; + int idx = bi->longIdx[sfb]; + + for ( ; sfb<8; sfb++ ) { + int sb = bi->longDiff[sfb]; + int is_p = scalefac[sfb]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx++) { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + else + idx += sb; + } + } + } + else { /* ((gr_info->block_type != 2)) */ + int sfb = gr_info->maxbandl; + int is_p,idx = bi->longIdx[sfb]; + +/* hmm ... maybe the maxbandl stuff for i-stereo is buggy? */ + if(sfb <= 21) { + for ( ; sfb<21; sfb++) { + int sb = bi->longDiff[sfb]; + is_p = scalefac[sfb]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx++) { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + else + idx += sb; + } + + is_p = scalefac[20]; + if(is_p != 7) { /* copy l-band 20 to l-band 21 */ + int sb; + real t1 = tab1[is_p],t2 = tab2[is_p]; + + for ( sb = bi->longDiff[21]; sb > 0; sb--,idx++ ) { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + } /* end: if(sfb <= 21) */ + } /* ... */ +} + +static void III_antialias(real xr[SBLIMIT][SSLIMIT],struct gr_info_s *gr_info) { + int sblim; + + if(gr_info->block_type == 2) { + if(!gr_info->mixed_block_flag) + return; + sblim = 1; + } + else { + sblim = gr_info->maxb-1; + } + + /* 31 alias-reduction operations between each pair of sub-bands */ + /* with 8 butterflies between each pair */ + + { + int sb; + real *xr1=(real *) xr[1]; + + for(sb=sblim;sb;sb--,xr1+=10) { + int ss; + real *cs=aa_cs,*ca=aa_ca; + real *xr2 = xr1; + + for(ss=7;ss>=0;ss--) + { /* upper and lower butterfly inputs */ + register real bu = *--xr2,bd = *xr1; + *xr2 = (bu * (*cs) ) - (bd * (*ca) ); + *xr1++ = (bd * (*cs++) ) + (bu * (*ca++) ); + } + } + } +} + +/* + This is an optimized DCT from Jeff Tsay's maplay 1.2+ package. + Saved one multiplication by doing the 'twiddle factor' stuff + together with the window mul. (MH) + + This uses Byeong Gi Lee's Fast Cosine Transform algorithm, but the + 9 point IDCT needs to be reduced further. Unfortunately, I don't + know how to do that, because 9 is not an even number. - Jeff. + + **************************************************************** + + 9 Point Inverse Discrete Cosine Transform + + This piece of code is Copyright 1997 Mikko Tommila and is freely usable + by anybody. The algorithm itself is of course in the public domain. + + Again derived heuristically from the 9-point WFTA. + + The algorithm is optimized (?) for speed, not for small rounding errors or + good readability. + + 36 additions, 11 multiplications + + Again this is very likely sub-optimal. + + The code is optimized to use a minimum number of temporary variables, + so it should compile quite well even on 8-register Intel x86 processors. + This makes the code quite obfuscated and very difficult to understand. + + References: + [1] S. Winograd: "On Computing the Discrete Fourier Transform", + Mathematics of Computation, Volume 32, Number 141, January 1978, + Pages 175-199 +*/ + +/*------------------------------------------------------------------*/ +/* */ +/* Function: Calculation of the inverse MDCT */ +/* */ +/*------------------------------------------------------------------*/ + +void dct36(real *inbuf,real *o1,real *o2,real *wintab,real *tsbuf) +{ +#ifdef NEW_DCT9 + real tmp[18]; +#endif + + { + register real *in = inbuf; + + in[17]+=in[16]; in[16]+=in[15]; in[15]+=in[14]; + in[14]+=in[13]; in[13]+=in[12]; in[12]+=in[11]; + in[11]+=in[10]; in[10]+=in[9]; in[9] +=in[8]; + in[8] +=in[7]; in[7] +=in[6]; in[6] +=in[5]; + in[5] +=in[4]; in[4] +=in[3]; in[3] +=in[2]; + in[2] +=in[1]; in[1] +=in[0]; + + in[17]+=in[15]; in[15]+=in[13]; in[13]+=in[11]; in[11]+=in[9]; + in[9] +=in[7]; in[7] +=in[5]; in[5] +=in[3]; in[3] +=in[1]; + + +#ifdef NEW_DCT9 +#if 1 + { + real t3; + { + real t0, t1, t2; + + t0 = COS6_2 * (in[8] + in[16] - in[4]); + t1 = COS6_2 * in[12]; + + t3 = in[0]; + t2 = t3 - t1 - t1; + tmp[1] = tmp[7] = t2 - t0; + tmp[4] = t2 + t0 + t0; + t3 += t1; + + t2 = COS6_1 * (in[10] + in[14] - in[2]); + tmp[1] -= t2; + tmp[7] += t2; + } + { + real t0, t1, t2; + + t0 = cos9[0] * (in[4] + in[8] ); + t1 = cos9[1] * (in[8] - in[16]); + t2 = cos9[2] * (in[4] + in[16]); + + tmp[2] = tmp[6] = t3 - t0 - t2; + tmp[0] = tmp[8] = t3 + t0 + t1; + tmp[3] = tmp[5] = t3 - t1 + t2; + } + } + { + real t1, t2, t3; + + t1 = cos18[0] * (in[2] + in[10]); + t2 = cos18[1] * (in[10] - in[14]); + t3 = COS6_1 * in[6]; + + { + real t0 = t1 + t2 + t3; + tmp[0] += t0; + tmp[8] -= t0; + } + + t2 -= t3; + t1 -= t3; + + t3 = cos18[2] * (in[2] + in[14]); + + t1 += t3; + tmp[3] += t1; + tmp[5] -= t1; + + t2 -= t3; + tmp[2] += t2; + tmp[6] -= t2; + } + +#else + { + real t0, t1, t2, t3, t4, t5, t6, t7; + + t1 = COS6_2 * in[12]; + t2 = COS6_2 * (in[8] + in[16] - in[4]); + + t3 = in[0] + t1; + t4 = in[0] - t1 - t1; + t5 = t4 - t2; + tmp[4] = t4 + t2 + t2; + + t0 = cos9[0] * (in[4] + in[8]); + t1 = cos9[1] * (in[8] - in[16]); + + t2 = cos9[2] * (in[4] + in[16]); + + t6 = t3 - t0 - t2; + t0 += t3 + t1; + t3 += t2 - t1; + + t2 = cos18[0] * (in[2] + in[10]); + t4 = cos18[1] * (in[10] - in[14]); + t7 = COS6_1 * in[6]; + + t1 = t2 + t4 + t7; + tmp[0] = t0 + t1; + tmp[8] = t0 - t1; + t1 = cos18[2] * (in[2] + in[14]); + t2 += t1 - t7; + + tmp[3] = t3 + t2; + t0 = COS6_1 * (in[10] + in[14] - in[2]); + tmp[5] = t3 - t2; + + t4 -= t1 + t7; + + tmp[1] = t5 - t0; + tmp[7] = t5 + t0; + tmp[2] = t6 + t4; + tmp[6] = t6 - t4; + } +#endif + + { + real t0, t1, t2, t3, t4, t5, t6, t7; + + t1 = COS6_2 * in[13]; + t2 = COS6_2 * (in[9] + in[17] - in[5]); + + t3 = in[1] + t1; + t4 = in[1] - t1 - t1; + t5 = t4 - t2; + + t0 = cos9[0] * (in[5] + in[9]); + t1 = cos9[1] * (in[9] - in[17]); + + tmp[13] = (t4 + t2 + t2) * tfcos36[17-13]; + t2 = cos9[2] * (in[5] + in[17]); + + t6 = t3 - t0 - t2; + t0 += t3 + t1; + t3 += t2 - t1; + + t2 = cos18[0] * (in[3] + in[11]); + t4 = cos18[1] * (in[11] - in[15]); + t7 = COS6_1 * in[7]; + + t1 = t2 + t4 + t7; + tmp[17] = (t0 + t1) * tfcos36[17-17]; + tmp[9] = (t0 - t1) * tfcos36[17-9]; + t1 = cos18[2] * (in[3] + in[15]); + t2 += t1 - t7; + + tmp[14] = (t3 + t2) * tfcos36[17-14]; + t0 = COS6_1 * (in[11] + in[15] - in[3]); + tmp[12] = (t3 - t2) * tfcos36[17-12]; + + t4 -= t1 + t7; + + tmp[16] = (t5 - t0) * tfcos36[17-16]; + tmp[10] = (t5 + t0) * tfcos36[17-10]; + tmp[15] = (t6 + t4) * tfcos36[17-15]; + tmp[11] = (t6 - t4) * tfcos36[17-11]; + } + +#define MACRO(v) { \ + real tmpval; \ + tmpval = tmp[(v)] + tmp[17-(v)]; \ + out2[9+(v)] = tmpval * w[27+(v)]; \ + out2[8-(v)] = tmpval * w[26-(v)]; \ + tmpval = tmp[(v)] - tmp[17-(v)]; \ + ts[SBLIMIT*(8-(v))] = out1[8-(v)] + tmpval * w[8-(v)]; \ + ts[SBLIMIT*(9+(v))] = out1[9+(v)] + tmpval * w[9+(v)]; } + +{ + register real *out2 = o2; + register real *w = wintab; + register real *out1 = o1; + register real *ts = tsbuf; + + MACRO(0); + MACRO(1); + MACRO(2); + MACRO(3); + MACRO(4); + MACRO(5); + MACRO(6); + MACRO(7); + MACRO(8); +} + +#else + + { + +#define MACRO0(v) { \ + real tmp; \ + out2[9+(v)] = (tmp = sum0 + sum1) * w[27+(v)]; \ + out2[8-(v)] = tmp * w[26-(v)]; } \ + sum0 -= sum1; \ + ts[SBLIMIT*(8-(v))] = out1[8-(v)] + sum0 * w[8-(v)]; \ + ts[SBLIMIT*(9+(v))] = out1[9+(v)] + sum0 * w[9+(v)]; +#define MACRO1(v) { \ + real sum0,sum1; \ + sum0 = tmp1a + tmp2a; \ + sum1 = (tmp1b + tmp2b) * tfcos36[(v)]; \ + MACRO0(v); } +#define MACRO2(v) { \ + real sum0,sum1; \ + sum0 = tmp2a - tmp1a; \ + sum1 = (tmp2b - tmp1b) * tfcos36[(v)]; \ + MACRO0(v); } + + register const real *c = COS9; + register real *out2 = o2; + register real *w = wintab; + register real *out1 = o1; + register real *ts = tsbuf; + + real ta33,ta66,tb33,tb66; + + ta33 = in[2*3+0] * c[3]; + ta66 = in[2*6+0] * c[6] + in[2*0+0]; + tb33 = in[2*3+1] * c[3]; + tb66 = in[2*6+1] * c[6] + in[2*0+1]; + + { + real tmp1a,tmp2a,tmp1b,tmp2b; + tmp1a = in[2*1+0] * c[1] + ta33 + in[2*5+0] * c[5] + in[2*7+0] * c[7]; + tmp1b = in[2*1+1] * c[1] + tb33 + in[2*5+1] * c[5] + in[2*7+1] * c[7]; + tmp2a = in[2*2+0] * c[2] + in[2*4+0] * c[4] + ta66 + in[2*8+0] * c[8]; + tmp2b = in[2*2+1] * c[2] + in[2*4+1] * c[4] + tb66 + in[2*8+1] * c[8]; + + MACRO1(0); + MACRO2(8); + } + + { + real tmp1a,tmp2a,tmp1b,tmp2b; + tmp1a = ( in[2*1+0] - in[2*5+0] - in[2*7+0] ) * c[3]; + tmp1b = ( in[2*1+1] - in[2*5+1] - in[2*7+1] ) * c[3]; + tmp2a = ( in[2*2+0] - in[2*4+0] - in[2*8+0] ) * c[6] - in[2*6+0] + in[2*0+0]; + tmp2b = ( in[2*2+1] - in[2*4+1] - in[2*8+1] ) * c[6] - in[2*6+1] + in[2*0+1]; + + MACRO1(1); + MACRO2(7); + } + + { + real tmp1a,tmp2a,tmp1b,tmp2b; + tmp1a = in[2*1+0] * c[5] - ta33 - in[2*5+0] * c[7] + in[2*7+0] * c[1]; + tmp1b = in[2*1+1] * c[5] - tb33 - in[2*5+1] * c[7] + in[2*7+1] * c[1]; + tmp2a = - in[2*2+0] * c[8] - in[2*4+0] * c[2] + ta66 + in[2*8+0] * c[4]; + tmp2b = - in[2*2+1] * c[8] - in[2*4+1] * c[2] + tb66 + in[2*8+1] * c[4]; + + MACRO1(2); + MACRO2(6); + } + + { + real tmp1a,tmp2a,tmp1b,tmp2b; + tmp1a = in[2*1+0] * c[7] - ta33 + in[2*5+0] * c[1] - in[2*7+0] * c[5]; + tmp1b = in[2*1+1] * c[7] - tb33 + in[2*5+1] * c[1] - in[2*7+1] * c[5]; + tmp2a = - in[2*2+0] * c[4] + in[2*4+0] * c[8] + ta66 - in[2*8+0] * c[2]; + tmp2b = - in[2*2+1] * c[4] + in[2*4+1] * c[8] + tb66 - in[2*8+1] * c[2]; + + MACRO1(3); + MACRO2(5); + } + + { + real sum0,sum1; + sum0 = in[2*0+0] - in[2*2+0] + in[2*4+0] - in[2*6+0] + in[2*8+0]; + sum1 = (in[2*0+1] - in[2*2+1] + in[2*4+1] - in[2*6+1] + in[2*8+1] ) * tfcos36[4]; + MACRO0(4); + } + } +#endif + + } +} + +/* + * new DCT12 + */ +static void dct12(real *in,real *rawout1,real *rawout2,register real *wi,register real *ts) +{ +#define DCT12_PART1 \ + in5 = in[5*3]; \ + in5 += (in4 = in[4*3]); \ + in4 += (in3 = in[3*3]); \ + in3 += (in2 = in[2*3]); \ + in2 += (in1 = in[1*3]); \ + in1 += (in0 = in[0*3]); \ + \ + in5 += in3; in3 += in1; \ + \ + in2 *= COS6_1; \ + in3 *= COS6_1; \ + +#define DCT12_PART2 \ + in0 += in4 * COS6_2; \ + \ + in4 = in0 + in2; \ + in0 -= in2; \ + \ + in1 += in5 * COS6_2; \ + \ + in5 = (in1 + in3) * tfcos12[0]; \ + in1 = (in1 - in3) * tfcos12[2]; \ + \ + in3 = in4 + in5; \ + in4 -= in5; \ + \ + in2 = in0 + in1; \ + in0 -= in1; + + + { + real in0,in1,in2,in3,in4,in5; + register real *out1 = rawout1; + ts[SBLIMIT*0] = out1[0]; ts[SBLIMIT*1] = out1[1]; ts[SBLIMIT*2] = out1[2]; + ts[SBLIMIT*3] = out1[3]; ts[SBLIMIT*4] = out1[4]; ts[SBLIMIT*5] = out1[5]; + + DCT12_PART1 + + { + real tmp0,tmp1 = (in0 - in4); + { + real tmp2 = (in1 - in5) * tfcos12[1]; + tmp0 = tmp1 + tmp2; + tmp1 -= tmp2; + } + ts[(17-1)*SBLIMIT] = out1[17-1] + tmp0 * wi[11-1]; + ts[(12+1)*SBLIMIT] = out1[12+1] + tmp0 * wi[6+1]; + ts[(6 +1)*SBLIMIT] = out1[6 +1] + tmp1 * wi[1]; + ts[(11-1)*SBLIMIT] = out1[11-1] + tmp1 * wi[5-1]; + } + + DCT12_PART2 + + ts[(17-0)*SBLIMIT] = out1[17-0] + in2 * wi[11-0]; + ts[(12+0)*SBLIMIT] = out1[12+0] + in2 * wi[6+0]; + ts[(12+2)*SBLIMIT] = out1[12+2] + in3 * wi[6+2]; + ts[(17-2)*SBLIMIT] = out1[17-2] + in3 * wi[11-2]; + + ts[(6+0)*SBLIMIT] = out1[6+0] + in0 * wi[0]; + ts[(11-0)*SBLIMIT] = out1[11-0] + in0 * wi[5-0]; + ts[(6+2)*SBLIMIT] = out1[6+2] + in4 * wi[2]; + ts[(11-2)*SBLIMIT] = out1[11-2] + in4 * wi[5-2]; + } + + in++; + + { + real in0,in1,in2,in3,in4,in5; + register real *out2 = rawout2; + + DCT12_PART1 + + { + real tmp0,tmp1 = (in0 - in4); + { + real tmp2 = (in1 - in5) * tfcos12[1]; + tmp0 = tmp1 + tmp2; + tmp1 -= tmp2; + } + out2[5-1] = tmp0 * wi[11-1]; + out2[0+1] = tmp0 * wi[6+1]; + ts[(12+1)*SBLIMIT] += tmp1 * wi[1]; + ts[(17-1)*SBLIMIT] += tmp1 * wi[5-1]; + } + + DCT12_PART2 + + out2[5-0] = in2 * wi[11-0]; + out2[0+0] = in2 * wi[6+0]; + out2[0+2] = in3 * wi[6+2]; + out2[5-2] = in3 * wi[11-2]; + + ts[(12+0)*SBLIMIT] += in0 * wi[0]; + ts[(17-0)*SBLIMIT] += in0 * wi[5-0]; + ts[(12+2)*SBLIMIT] += in4 * wi[2]; + ts[(17-2)*SBLIMIT] += in4 * wi[5-2]; + } + + in++; + + { + real in0,in1,in2,in3,in4,in5; + register real *out2 = rawout2; + out2[12]=out2[13]=out2[14]=out2[15]=out2[16]=out2[17]=0.0; + + DCT12_PART1 + + { + real tmp0,tmp1 = (in0 - in4); + { + real tmp2 = (in1 - in5) * tfcos12[1]; + tmp0 = tmp1 + tmp2; + tmp1 -= tmp2; + } + out2[11-1] = tmp0 * wi[11-1]; + out2[6 +1] = tmp0 * wi[6+1]; + out2[0+1] += tmp1 * wi[1]; + out2[5-1] += tmp1 * wi[5-1]; + } + + DCT12_PART2 + + out2[11-0] = in2 * wi[11-0]; + out2[6 +0] = in2 * wi[6+0]; + out2[6 +2] = in3 * wi[6+2]; + out2[11-2] = in3 * wi[11-2]; + + out2[0+0] += in0 * wi[0]; + out2[5-0] += in0 * wi[5-0]; + out2[0+2] += in4 * wi[2]; + out2[5-2] += in4 * wi[5-2]; + } +} + +/* + * III_hybrid + */ +static void III_hybrid(struct mpstr *mp,real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT], + int ch,struct gr_info_s *gr_info,struct frame *fr) +{ +/* + static real block[2][2][SBLIMIT*SSLIMIT] = { { { 0, } } }; + static int blc[2]={0,0}; + */ + + real *tspnt = (real *) tsOut; + real *rawout1,*rawout2; + int bt,sb = 0; + + { + int b = mp->hybrid_blc[ch]; + rawout1=mp->hybrid_block[b][ch]; + b=-b+1; + rawout2=mp->hybrid_block[b][ch]; + mp->hybrid_blc[ch] = b; + } + + if(gr_info->mixed_block_flag) { + sb = 2; +#ifdef USE_3DNOW + (fr->dct36)(fsIn[0],rawout1,rawout2,win[0],tspnt); + (fr->dct36)(fsIn[1],rawout1+18,rawout2+18,win1[0],tspnt+1); +#else + dct36(fsIn[0],rawout1,rawout2,win[0],tspnt); + dct36(fsIn[1],rawout1+18,rawout2+18,win1[0],tspnt+1); +#endif + rawout1 += 36; rawout2 += 36; tspnt += 2; + } + + bt = gr_info->block_type; + if(bt == 2) { + for (; sbmaxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { + dct12(fsIn[sb] ,rawout1 ,rawout2 ,win[2] ,tspnt); + dct12(fsIn[sb+1],rawout1+18,rawout2+18,win1[2],tspnt+1); + } + } + else { + for (; sbmaxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { +#ifdef USE_3DNOW + (fr->dct36)(fsIn[sb],rawout1,rawout2,win[bt],tspnt); + (fr->dct36)(fsIn[sb+1],rawout1+18,rawout2+18,win1[bt],tspnt+1); +#else + dct36(fsIn[sb],rawout1,rawout2,win[bt],tspnt); + dct36(fsIn[sb+1],rawout1+18,rawout2+18,win1[bt],tspnt+1); +#endif + } + } + + for(;sbstereo; + int single = fr->single; + int ms_stereo,i_stereo; + int sfreq = fr->sampling_frequency; + int stereo1,granules; + + if(stereo == 1) { /* stream is mono */ + stereo1 = 1; + single = 0; + } + else if(single >= 0) /* stream is stereo, but force to mono */ + stereo1 = 1; + else + stereo1 = 2; + + if(fr->mode == MPG_MD_JOINT_STEREO) { + ms_stereo = (fr->mode_ext & 0x2)>>1; + i_stereo = fr->mode_ext & 0x1; + } + else + ms_stereo = i_stereo = 0; + + granules = fr->lsf ? 1 : 2; + if(!III_get_side_info(&sideinfo,stereo,ms_stereo,sfreq,single,fr->lsf)) + return -1; + + set_pointer(sideinfo.main_data_begin); + + for (gr=0;grlsf) + part2bits = III_get_scale_factors_2(scalefacs[0],gr_info,0); + else + part2bits = III_get_scale_factors_1(scalefacs[0],gr_info); + + if(III_dequantize_sample(hybridIn[0], scalefacs[0],gr_info,sfreq,part2bits)) + return clip; + } + + if(stereo == 2) { + struct gr_info_s *gr_info = &(sideinfo.ch[1].gr[gr]); + long part2bits; + if(fr->lsf) + part2bits = III_get_scale_factors_2(scalefacs[1],gr_info,i_stereo); + else + part2bits = III_get_scale_factors_1(scalefacs[1],gr_info); + + + if(III_dequantize_sample(hybridIn[1],scalefacs[1],gr_info,sfreq,part2bits)) + return clip; + + + if(ms_stereo) { + int i; + int maxb = sideinfo.ch[0].gr[gr].maxb; + if(sideinfo.ch[1].gr[gr].maxb > maxb) + maxb = sideinfo.ch[1].gr[gr].maxb; + for(i=0;ilsf); + + if(ms_stereo || i_stereo || (single == 3) ) { + if(gr_info->maxb > sideinfo.ch[0].gr[gr].maxb) + sideinfo.ch[0].gr[gr].maxb = gr_info->maxb; + else + gr_info->maxb = sideinfo.ch[0].gr[gr].maxb; + } + + switch(single) { + case 3: + { + register int i; + register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1]; + for(i=0;imaxb;i++,in0++) + *in0 = (*in0 + *in1++); /* *0.5 done by pow-scale */ + } + break; + case 1: + { + register int i; + register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1]; + for(i=0;imaxb;i++) + *in0++ = *in1++; + } + break; + } + } + + for(ch=0;chsynth != synth_1to1 || single >= 0) { +#endif + for(ss=0;ss= 0) { + clip += (fr->synth_mono)(hybridOut[0][ss],pcm_sample,&pcm_point); + } + else { + int p1 = pcm_point; + clip += (fr->synth)(hybridOut[0][ss],0,pcm_sample,&p1); + clip += (fr->synth)(hybridOut[1][ss],1,pcm_sample,&pcm_point); + } + + if(pcm_point >= audiobufsize) + audio_flush(outmode,ai); + } +#ifdef I486_OPT + } else { + /* Only stereo, 16 bits benefit from the 486 optimization. */ + ss=0; + while (ss < SSLIMIT) { + int n; + n=(audiobufsize - pcm_point) / (2*2*32); + if (n > (SSLIMIT-ss)) n=SSLIMIT-ss; + + synth_1to1_486(hybridOut[0][ss],0,pcm_sample+pcm_point,n); + synth_1to1_486(hybridOut[1][ss],1,pcm_sample+pcm_point,n); + ss+=n; + pcm_point+=(2*2*32)*n; + + if(pcm_point >= audiobufsize) + audio_flush(outmode,ai); + } + } +#endif + } + + return clip; +} + + diff --git a/panda/src/mpg123/tabinit.c b/panda/src/mpg123/tabinit.c new file mode 100644 index 0000000000..ac39bc4e5b --- /dev/null +++ b/panda/src/mpg123/tabinit.c @@ -0,0 +1,138 @@ + +#include + +#include "mpg123.h" + +static unsigned char *conv16to8_buf = NULL; +unsigned char *conv16to8; + +#ifndef USE_MMX +real decwin[512+32]; +static real cos64[16],cos32[8],cos16[4],cos8[2],cos4[1]; + +real *pnts[] = { cos64,cos32,cos16,cos8,cos4 }; + + +static long intwinbase[] = { + 0, -1, -1, -1, -1, -1, -1, -2, -2, -2, + -2, -3, -3, -4, -4, -5, -5, -6, -7, -7, + -8, -9, -10, -11, -13, -14, -16, -17, -19, -21, + -24, -26, -29, -31, -35, -38, -41, -45, -49, -53, + -58, -63, -68, -73, -79, -85, -91, -97, -104, -111, + -117, -125, -132, -139, -147, -154, -161, -169, -176, -183, + -190, -196, -202, -208, -213, -218, -222, -225, -227, -228, + -228, -227, -224, -221, -215, -208, -200, -189, -177, -163, + -146, -127, -106, -83, -57, -29, 2, 36, 72, 111, + 153, 197, 244, 294, 347, 401, 459, 519, 581, 645, + 711, 779, 848, 919, 991, 1064, 1137, 1210, 1283, 1356, + 1428, 1498, 1567, 1634, 1698, 1759, 1817, 1870, 1919, 1962, + 2001, 2032, 2057, 2075, 2085, 2087, 2080, 2063, 2037, 2000, + 1952, 1893, 1822, 1739, 1644, 1535, 1414, 1280, 1131, 970, + 794, 605, 402, 185, -45, -288, -545, -814, -1095, -1388, + -1692, -2006, -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788, + -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597, -7910, -8209, + -8491, -8755, -8998, -9219, -9416, -9585, -9727, -9838, -9916, -9959, + -9966, -9935, -9863, -9750, -9592, -9389, -9139, -8840, -8492, -8092, + -7640, -7134, -6574, -5959, -5288, -4561, -3776, -2935, -2037, -1082, + -70, 998, 2122, 3300, 4533, 5818, 7154, 8540, 9975, 11455, + 12980, 14548, 16155, 17799, 19478, 21189, 22929, 24694, 26482, 28289, + 30112, 31947, 33791, 35640, 37489, 39336, 41176, 43006, 44821, 46617, + 48390, 50137, 51853, 53534, 55178, 56778, 58333, 59838, 61289, 62684, + 64019, 65290, 66494, 67629, 68692, 69679, 70590, 71420, 72169, 72835, + 73415, 73908, 74313, 74630, 74856, 74992, 75038 }; + +void make_decode_tables(long scaleval) +{ + int i,j,k,kr,divv; + real *costab; + int idx; + + + for(i=0;i<5;i++) + { + kr=0x10>>i; divv=0x40>>i; + costab = pnts[i]; + for(k=0;k 255) + fprintf(stderr,"Converror %d %d\n",i,c1); + if(c1 == 0) + c1 = 2; + conv16to8[i] = (unsigned char) c1; + } + } + else if(mode == AUDIO_FORMAT_SIGNED_8) { + for(i=-4096;i<4096;i++) { + conv16to8[i] = i>>5; + } + } + else if(mode == AUDIO_FORMAT_UNSIGNED_8) { + for(i=-4096;i<4096;i++) { + conv16to8[i] = (i>>5)+128; + } + } + else { + for(i=-4096;i<4096;i++) { + conv16to8[i] = 0; + } + } +} + diff --git a/panda/src/mpg123/vbrhead.c b/panda/src/mpg123/vbrhead.c new file mode 100644 index 0000000000..f77ab2794b --- /dev/null +++ b/panda/src/mpg123/vbrhead.c @@ -0,0 +1,79 @@ +/* + * This checks for the VBR Header defined by Xing(tm) + */ + +#include "mpg123.h" + +static unsigned long get32bits(unsigned char *buf) { + unsigned long ret = 0; + + ret = (((unsigned long) buf[0]) << 24) | + (((unsigned long) buf[1]) << 16) | + (((unsigned long) buf[2]) << 8) | + ((unsigned long) buf[3]) ; + + return ret; +} + +int getVBRHeader(struct vbrHeader *head,unsigned char *buf, struct frame *fr) +{ + int ssize; + + if(fr->lay != 3) + return 0; + + if(fr->lsf) + ssize = (fr->stereo == 1) ? 9 : 17; + else + ssize = (fr->stereo == 1) ? 17 : 32; + + + buf += ssize; + + if(( buf[0] != 'X' ) || ( buf[1] != 'i' ) || + ( buf[2] != 'n' ) || ( buf[3] != 'g' ) ) + return 0; + buf+=4; + + head->flags = get32bits(buf); + buf+=4; + + if(head->flags & VBR_FRAMES_FLAG) { + head->frames = get32bits(buf); + buf += 4; + } + + if(head->flags & VBR_BYTES_FLAG) { + head->bytes = get32bits(buf); + buf += 4; + } + + if(head->flags & VBR_TOC_FLAG) { + memcpy(head->toc,buf,100); + buf += 100; + } + + if(head->flags & VBR_SCALE_FLAG) { + head->scale = get32bits(buf); + buf += 4; + } + + fprintf(stderr,"Found XING %04lx\n",head->flags); + + return 1; + +} + + + + + + + + + + + + + +