Author: brian Date: Mon Mar 12 22:02:28 2007 New Revision: 4576 Added: freeswitch/trunk/src/mod/formats/mod_shout/MPGLIB_README freeswitch/trunk/src/mod/formats/mod_shout/MPGLIB_TODO freeswitch/trunk/src/mod/formats/mod_shout/common.c freeswitch/trunk/src/mod/formats/mod_shout/dct64_i386.c freeswitch/trunk/src/mod/formats/mod_shout/decode_i386.c freeswitch/trunk/src/mod/formats/mod_shout/decode_ntom.c freeswitch/trunk/src/mod/formats/mod_shout/huffman.h freeswitch/trunk/src/mod/formats/mod_shout/interface.c freeswitch/trunk/src/mod/formats/mod_shout/layer3.c freeswitch/trunk/src/mod/formats/mod_shout/mpg123.h freeswitch/trunk/src/mod/formats/mod_shout/mpglib.h freeswitch/trunk/src/mod/formats/mod_shout/tabinit.c Modified: freeswitch/trunk/src/mod/formats/mod_shout/Makefile freeswitch/trunk/src/mod/formats/mod_shout/mod_shout.c Log: add framework for shout read (not done yet i'd wait to try it) Added: freeswitch/trunk/src/mod/formats/mod_shout/MPGLIB_README ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/MPGLIB_README Mon Mar 12 22:02:28 2007 @@ -0,0 +1,39 @@ +MP3 library +----------- +Version 0.2 + +This decoder is a 'light' version (thrown out all unnecessay parts) +from the mpg123 package. I made this for a company. + +Currently only Layer3 is enabled to save some space. Layer1,2 isn't +tested at all. The interface will not change significantly. +A backport to the mpg123 package is planed. + +comiled and tested only on Solaris 2.6 +main.c contains a simple demo application for library. + +COPYING: you may use this source under GPL terms! + +PLEASE NOTE: This software may contain patented alogrithm (at least + patented in some countries). It may be not allowed to sell/use products + based on this source code in these countries. Check this out first! + +COPYRIGHT of MP3 music: + Please note, that the duplicating of copyrighted music without explicit + permission violates the rights of the owner. + +SENDING PATCHES: + Maybe I change the copyright policy (ie some kind of more free BSD licencse). + Please consider this when sending patches/changes. + I also want to have the freedom to sell the code to companies that + can not use the code under GPL. So, if you send me significant patches, + I need your explicit permission to do this. Of course, there will also + be the GPLed open source version of the 100% same code. + For the case you cannot accept this: the code is GPL, it's your freedom + to distribute your changes again under GPL. + +FEEDBACK: + I'm interessted to here from you, when you use this package as part + of another project. + + Added: freeswitch/trunk/src/mod/formats/mod_shout/MPGLIB_TODO ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/MPGLIB_TODO Mon Mar 12 22:02:28 2007 @@ -0,0 +1,2 @@ + +apply 'VBR' bugfix Modified: freeswitch/trunk/src/mod/formats/mod_shout/Makefile ============================================================================== --- freeswitch/trunk/src/mod/formats/mod_shout/Makefile (original) +++ freeswitch/trunk/src/mod/formats/mod_shout/Makefile Mon Mar 12 22:02:28 2007 @@ -2,11 +2,16 @@ # local_all local_depend local_clean depend_install local_install local_distclean local_extraclean: # and define these variables to impact your build -LOCAL_CFLAGS= -LOCAL_LDFLAGS=-lshout -lmp3lame +LOCAL_CFLAGS=-I$(BASE)/libs/curl/include +LOCAL_LDFLAGS=-lshout -lmp3lame $(BASE)/libs/curl/lib/libcurl.la LOCAL_OBJS= include $(BASE)/build/modmake.rules +MP3OBJS=common.o dct64_i386.o decode_ntom.o layer3.o tabinit.o interface.o -local_depend: +%.o: %.c + $(CC) $(ALL_CFLAGS) -c -o $@ $< + +local_depend: $(MP3OBJS) MAKE=$(MAKE) $(BASE)/build/buildlib.sh $(BASE) install lame-3.97.tar.gz --prefix=$(PREFIX) --disable-shared --with-pic MOD_CFLAGS="${ALL_CFLAGS}" MOD_LDFLAGS="${LD_CFLAGS}" MAKE=$(MAKE) $(BASE)/build/buildlib.sh $(BASE) install libshout-2.2.2.tar.gz --disable-shared --with-pic --prefix=$(PREFIX) + cd $(BASE)/libs/curl && $(MAKE) Added: freeswitch/trunk/src/mod/formats/mod_shout/common.c ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/common.c Mon Mar 12 22:02:28 2007 @@ -0,0 +1,264 @@ +#include <ctype.h> +#include <stdlib.h> +#include <signal.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +#include "mpg123.h" +#include "mpglib.h" + +struct parameter param = { 1 , 1 , 0 , 0 }; + +int tabsel_123[2][3][16] = { + { {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,}, + {0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,}, + {0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} }, + + { {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,}, + {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,}, + {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} } +}; + +long freqs[9] = { 44100, 48000, 32000, + 22050, 24000, 16000 , + 11025 , 12000 , 8000 }; + + +#if 0 +static void get_II_stuff(struct frame *fr) +{ + static int translate[3][2][16] = + { { { 0,2,2,2,2,2,2,0,0,0,1,1,1,1,1,0 } , + { 0,2,2,0,0,0,1,1,1,1,1,1,1,1,1,0 } } , + { { 0,2,2,2,2,2,2,0,0,0,0,0,0,0,0,0 } , + { 0,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0 } } , + { { 0,3,3,3,3,3,3,0,0,0,1,1,1,1,1,0 } , + { 0,3,3,0,0,0,1,1,1,1,1,1,1,1,1,0 } } }; + + int table,sblim; + static struct al_table *tables[5] = + { alloc_0, alloc_1, alloc_2, alloc_3 , alloc_4 }; + static int sblims[5] = { 27 , 30 , 8, 12 , 30 }; + + if(fr->lsf) + 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; +} +#endif + +#define HDRCMPMASK 0xfffffd00 + +#if 0 +int head_check(unsigned long head) +{ + if( (head & 0xffe00000) != 0xffe00000) + return FALSE; + if(!((head>>17)&3)) + return FALSE; + if( ((head>>12)&0xf) == 0xf) + return FALSE; + if( ((head>>10)&0x3) == 0x3 ) + return FALSE; + return TRUE; +} +#endif + + +/* + * the code a header and write the information + * into the frame structure + */ +int decode_header(struct frame *fr,unsigned long newhead) +{ + if( newhead & (1<<20) ) { + fr->lsf = (newhead & (1<<19)) ? 0x0 : 0x1; + fr->mpeg25 = 0; + } + else { + fr->lsf = 1; + fr->mpeg25 = 1; + } + + fr->lay = 4-((newhead>>17)&3); + if( ((newhead>>10)&0x3) == 0x3) { + //printf("Stream error\n"); + return (0); + } + if(fr->mpeg25) { + fr->sampling_frequency = 6 + ((newhead>>10)&0x3); + } + else + fr->sampling_frequency = ((newhead>>10)&0x3) + (fr->lsf*3); + fr->error_protection = ((newhead>>16)&0x1)^0x1; + + if(fr->mpeg25) /* allow Bitrate change for 2.5 ... */ + fr->bitrate_index = ((newhead>>12)&0xf); + + fr->bitrate_index = ((newhead>>12)&0xf); + fr->padding = ((newhead>>9)&0x1); + fr->extension = ((newhead>>8)&0x1); + fr->mode = ((newhead>>6)&0x3); + fr->mode_ext = ((newhead>>4)&0x3); + fr->copyright = ((newhead>>3)&0x1); + fr->original = ((newhead>>2)&0x1); + fr->emphasis = newhead & 0x3; + + fr->stereo = (fr->mode == MPG_MD_MONO) ? 1 : 2; + + if(!fr->bitrate_index) + { + //printf("Free format not supported.\n"); + return (0); + } + + switch(fr->lay) + { + case 1: +#if 0 + fr->do_layer = do_layer1; + fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? + (fr->mode_ext<<2)+4 : 32; + fr->framesize = (long) tabsel_123[fr->lsf][0][fr->bitrate_index] * 12000; + fr->framesize /= freqs[fr->sampling_frequency]; + fr->framesize = ((fr->framesize+fr->padding)<<2)-4; +#else + //printf("Layer 1 not supported!\n"); +#endif + break; + case 2: +#if 0 + fr->do_layer = do_layer2; + get_II_stuff(fr); + fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? + (fr->mode_ext<<2)+4 : fr->II_sblimit; + fr->framesize = (long) tabsel_123[fr->lsf][1][fr->bitrate_index] * 144000; + fr->framesize /= freqs[fr->sampling_frequency]; + fr->framesize += fr->padding - 4; +#else + //printf("Layer 2 not supported!\n"); +#endif + break; + case 3: +#if 0 + fr->do_layer = do_layer3; + if(fr->lsf) + ssize = (fr->stereo == 1) ? 9 : 17; + else + ssize = (fr->stereo == 1) ? 17 : 32; +#endif + +#if 0 + if(fr->error_protection) + ssize += 2; +#endif + fr->framesize = (long) tabsel_123[fr->lsf][2][fr->bitrate_index] * 144000; + fr->framesize /= freqs[fr->sampling_frequency]<<(fr->lsf); + fr->framesize = fr->framesize + fr->padding - 4; + break; + default: + //printf("Sorry, unknown layer type.\n"); + return (0); + } + return 1; +} + +#if 0 +void print_header(struct frame *fr) +{ + static char *modes[4] = { "Stereo", "Joint-Stereo", "Dual-Channel", "Single-Channel" }; + static char *layers[4] = { "Unknown" , "I", "II", "III" }; + + //printf("MPEG %s, Layer: %s, Freq: %ld, mode: %s, modext: %d, BPF : %d\n", + fr->mpeg25 ? "2.5" : (fr->lsf ? "2.0" : "1.0"), + layers[fr->lay],freqs[fr->sampling_frequency], + modes[fr->mode],fr->mode_ext,fr->framesize+4); + //printf("Channels: %d, copyright: %s, original: %s, CRC: %s, emphasis: %d.\n", + fr->stereo,fr->copyright?"Yes":"No", + fr->original?"Yes":"No",fr->error_protection?"Yes":"No", + fr->emphasis); + //printf("Bitrate: %d Kbits/s, Extension value: %d\n", + tabsel_123[fr->lsf][fr->lay-1][fr->bitrate_index],fr->extension); +} + +void print_header_compact(struct frame *fr) +{ + static char *modes[4] = { "stereo", "joint-stereo", "dual-channel", "mono" }; + static char *layers[4] = { "Unknown" , "I", "II", "III" }; + + //printf("MPEG %s layer %s, %d kbit/s, %ld Hz %s\n", + fr->mpeg25 ? "2.5" : (fr->lsf ? "2.0" : "1.0"), + layers[fr->lay], + tabsel_123[fr->lsf][fr->lay-1][fr->bitrate_index], + freqs[fr->sampling_frequency], modes[fr->mode]); +} + +#endif + +unsigned int getbits(struct mpstr *mp, int number_of_bits) +{ + unsigned long rval; + + if(!number_of_bits) + return 0; + + { + rval = (mp->worksample).wordpointer[0]; + rval <<= 8; + rval |= (mp->worksample).wordpointer[1]; + rval <<= 8; + rval |= (mp->worksample).wordpointer[2]; + rval <<= (mp->worksample).bitindex; + rval &= 0xffffff; + + (mp->worksample).bitindex += number_of_bits; + + rval >>= (24-number_of_bits); + + (mp->worksample).wordpointer += ((mp->worksample).bitindex>>3); + (mp->worksample).bitindex &= 7; + } + return rval; +} + +unsigned int getbits_fast(struct mpstr *mp, int number_of_bits) +{ + unsigned long rval; + + { + rval = (mp->worksample).wordpointer[0]; + rval <<= 8; + rval |= (mp->worksample).wordpointer[1]; + rval <<= (mp->worksample).bitindex; + rval &= 0xffff; + (mp->worksample).bitindex += number_of_bits; + + rval >>= (16-number_of_bits); + + (mp->worksample).wordpointer += ((mp->worksample).bitindex>>3); + (mp->worksample).bitindex &= 7; + } + return rval; +} + +unsigned int get1bit(struct mpstr *mp) +{ + unsigned char rval; + + rval = *((mp->worksample).wordpointer) << (mp->worksample).bitindex; + + (mp->worksample).bitindex++; + (mp->worksample).wordpointer += ((mp->worksample).bitindex>>3); + (mp->worksample).bitindex &= 7; + + return rval>>7; +} + + + Added: freeswitch/trunk/src/mod/formats/mod_shout/dct64_i386.c ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/dct64_i386.c Mon Mar 12 22:02:28 2007 @@ -0,0 +1,335 @@ + +/* + * Discrete Cosine Tansform (DCT) for subband synthesis + * optimized for machines with no auto-increment. + * The performance is highly compiler dependend. Maybe + * the dct64.c version for 'normal' processor may be faster + * even for Intel processors. + */ + +#include "mpg123.h" + +/* + * the call via dct64 is a trick to force GCC to use + * (new) registers for the b1,b2 pointer to the bufs[xx] field + */ +void dct64(real *a,real *b,real *c); + +static void dct64_1(real *out0,real *out1,real *b1,real *b2,real *samples) +{ + { + register real *costab = pnts[0]; + + b1[0x00] = samples[0x00] + samples[0x1F]; + b1[0x01] = samples[0x01] + samples[0x1E]; + b1[0x1F] = (samples[0x00] - samples[0x1F]) * costab[0x0]; + b1[0x1E] = (samples[0x01] - samples[0x1E]) * costab[0x1]; + + b1[0x02] = samples[0x02] + samples[0x1D]; + b1[0x03] = samples[0x03] + samples[0x1C]; + b1[0x1D] = (samples[0x02] - samples[0x1D]) * costab[0x2]; + b1[0x1C] = (samples[0x03] - samples[0x1C]) * costab[0x3]; + + b1[0x04] = samples[0x04] + samples[0x1B]; + b1[0x05] = samples[0x05] + samples[0x1A]; + b1[0x1B] = (samples[0x04] - samples[0x1B]) * costab[0x4]; + b1[0x1A] = (samples[0x05] - samples[0x1A]) * costab[0x5]; + + b1[0x06] = samples[0x06] + samples[0x19]; + b1[0x07] = samples[0x07] + samples[0x18]; + b1[0x19] = (samples[0x06] - samples[0x19]) * costab[0x6]; + b1[0x18] = (samples[0x07] - samples[0x18]) * costab[0x7]; + + b1[0x08] = samples[0x08] + samples[0x17]; + b1[0x09] = samples[0x09] + samples[0x16]; + b1[0x17] = (samples[0x08] - samples[0x17]) * costab[0x8]; + b1[0x16] = (samples[0x09] - samples[0x16]) * costab[0x9]; + + b1[0x0A] = samples[0x0A] + samples[0x15]; + b1[0x0B] = samples[0x0B] + samples[0x14]; + b1[0x15] = (samples[0x0A] - samples[0x15]) * costab[0xA]; + b1[0x14] = (samples[0x0B] - samples[0x14]) * costab[0xB]; + + b1[0x0C] = samples[0x0C] + samples[0x13]; + b1[0x0D] = samples[0x0D] + samples[0x12]; + b1[0x13] = (samples[0x0C] - samples[0x13]) * costab[0xC]; + b1[0x12] = (samples[0x0D] - samples[0x12]) * costab[0xD]; + + b1[0x0E] = samples[0x0E] + samples[0x11]; + b1[0x0F] = samples[0x0F] + samples[0x10]; + b1[0x11] = (samples[0x0E] - samples[0x11]) * costab[0xE]; + b1[0x10] = (samples[0x0F] - samples[0x10]) * costab[0xF]; + + } + + + { + register real *costab = pnts[1]; + + b2[0x00] = b1[0x00] + b1[0x0F]; + b2[0x01] = b1[0x01] + b1[0x0E]; + b2[0x0F] = (b1[0x00] - b1[0x0F]) * costab[0]; + b2[0x0E] = (b1[0x01] - b1[0x0E]) * costab[1]; + + b2[0x02] = b1[0x02] + b1[0x0D]; + b2[0x03] = b1[0x03] + b1[0x0C]; + b2[0x0D] = (b1[0x02] - b1[0x0D]) * costab[2]; + b2[0x0C] = (b1[0x03] - b1[0x0C]) * costab[3]; + + b2[0x04] = b1[0x04] + b1[0x0B]; + b2[0x05] = b1[0x05] + b1[0x0A]; + b2[0x0B] = (b1[0x04] - b1[0x0B]) * costab[4]; + b2[0x0A] = (b1[0x05] - b1[0x0A]) * costab[5]; + + b2[0x06] = b1[0x06] + b1[0x09]; + b2[0x07] = b1[0x07] + b1[0x08]; + b2[0x09] = (b1[0x06] - b1[0x09]) * costab[6]; + b2[0x08] = (b1[0x07] - b1[0x08]) * costab[7]; + + /* */ + + b2[0x10] = b1[0x10] + b1[0x1F]; + b2[0x11] = b1[0x11] + b1[0x1E]; + b2[0x1F] = (b1[0x1F] - b1[0x10]) * costab[0]; + b2[0x1E] = (b1[0x1E] - b1[0x11]) * costab[1]; + + b2[0x12] = b1[0x12] + b1[0x1D]; + b2[0x13] = b1[0x13] + b1[0x1C]; + b2[0x1D] = (b1[0x1D] - b1[0x12]) * costab[2]; + b2[0x1C] = (b1[0x1C] - b1[0x13]) * costab[3]; + + b2[0x14] = b1[0x14] + b1[0x1B]; + b2[0x15] = b1[0x15] + b1[0x1A]; + b2[0x1B] = (b1[0x1B] - b1[0x14]) * costab[4]; + b2[0x1A] = (b1[0x1A] - b1[0x15]) * costab[5]; + + b2[0x16] = b1[0x16] + b1[0x19]; + b2[0x17] = b1[0x17] + b1[0x18]; + b2[0x19] = (b1[0x19] - b1[0x16]) * costab[6]; + b2[0x18] = (b1[0x18] - b1[0x17]) * costab[7]; + } + + { + register real *costab = pnts[2]; + + b1[0x00] = b2[0x00] + b2[0x07]; + b1[0x07] = (b2[0x00] - b2[0x07]) * costab[0]; + b1[0x01] = b2[0x01] + b2[0x06]; + b1[0x06] = (b2[0x01] - b2[0x06]) * costab[1]; + b1[0x02] = b2[0x02] + b2[0x05]; + b1[0x05] = (b2[0x02] - b2[0x05]) * costab[2]; + b1[0x03] = b2[0x03] + b2[0x04]; + b1[0x04] = (b2[0x03] - b2[0x04]) * costab[3]; + + b1[0x08] = b2[0x08] + b2[0x0F]; + b1[0x0F] = (b2[0x0F] - b2[0x08]) * costab[0]; + b1[0x09] = b2[0x09] + b2[0x0E]; + b1[0x0E] = (b2[0x0E] - b2[0x09]) * costab[1]; + b1[0x0A] = b2[0x0A] + b2[0x0D]; + b1[0x0D] = (b2[0x0D] - b2[0x0A]) * costab[2]; + b1[0x0B] = b2[0x0B] + b2[0x0C]; + b1[0x0C] = (b2[0x0C] - b2[0x0B]) * costab[3]; + + b1[0x10] = b2[0x10] + b2[0x17]; + b1[0x17] = (b2[0x10] - b2[0x17]) * costab[0]; + b1[0x11] = b2[0x11] + b2[0x16]; + b1[0x16] = (b2[0x11] - b2[0x16]) * costab[1]; + b1[0x12] = b2[0x12] + b2[0x15]; + b1[0x15] = (b2[0x12] - b2[0x15]) * costab[2]; + b1[0x13] = b2[0x13] + b2[0x14]; + b1[0x14] = (b2[0x13] - b2[0x14]) * costab[3]; + + b1[0x18] = b2[0x18] + b2[0x1F]; + b1[0x1F] = (b2[0x1F] - b2[0x18]) * costab[0]; + b1[0x19] = b2[0x19] + b2[0x1E]; + b1[0x1E] = (b2[0x1E] - b2[0x19]) * costab[1]; + b1[0x1A] = b2[0x1A] + b2[0x1D]; + b1[0x1D] = (b2[0x1D] - b2[0x1A]) * costab[2]; + b1[0x1B] = b2[0x1B] + b2[0x1C]; + b1[0x1C] = (b2[0x1C] - b2[0x1B]) * costab[3]; + } + + { + register real const cos0 = pnts[3][0]; + register real const cos1 = pnts[3][1]; + + b2[0x00] = b1[0x00] + b1[0x03]; + b2[0x03] = (b1[0x00] - b1[0x03]) * cos0; + b2[0x01] = b1[0x01] + b1[0x02]; + b2[0x02] = (b1[0x01] - b1[0x02]) * cos1; + + b2[0x04] = b1[0x04] + b1[0x07]; + b2[0x07] = (b1[0x07] - b1[0x04]) * cos0; + b2[0x05] = b1[0x05] + b1[0x06]; + b2[0x06] = (b1[0x06] - b1[0x05]) * cos1; + + b2[0x08] = b1[0x08] + b1[0x0B]; + b2[0x0B] = (b1[0x08] - b1[0x0B]) * cos0; + b2[0x09] = b1[0x09] + b1[0x0A]; + b2[0x0A] = (b1[0x09] - b1[0x0A]) * cos1; + + b2[0x0C] = b1[0x0C] + b1[0x0F]; + b2[0x0F] = (b1[0x0F] - b1[0x0C]) * cos0; + b2[0x0D] = b1[0x0D] + b1[0x0E]; + b2[0x0E] = (b1[0x0E] - b1[0x0D]) * cos1; + + b2[0x10] = b1[0x10] + b1[0x13]; + b2[0x13] = (b1[0x10] - b1[0x13]) * cos0; + b2[0x11] = b1[0x11] + b1[0x12]; + b2[0x12] = (b1[0x11] - b1[0x12]) * cos1; + + b2[0x14] = b1[0x14] + b1[0x17]; + b2[0x17] = (b1[0x17] - b1[0x14]) * cos0; + b2[0x15] = b1[0x15] + b1[0x16]; + b2[0x16] = (b1[0x16] - b1[0x15]) * cos1; + + b2[0x18] = b1[0x18] + b1[0x1B]; + b2[0x1B] = (b1[0x18] - b1[0x1B]) * cos0; + b2[0x19] = b1[0x19] + b1[0x1A]; + b2[0x1A] = (b1[0x19] - b1[0x1A]) * cos1; + + b2[0x1C] = b1[0x1C] + b1[0x1F]; + b2[0x1F] = (b1[0x1F] - b1[0x1C]) * cos0; + b2[0x1D] = b1[0x1D] + b1[0x1E]; + b2[0x1E] = (b1[0x1E] - b1[0x1D]) * cos1; + } + + { + register real const cos0 = pnts[4][0]; + + b1[0x00] = b2[0x00] + b2[0x01]; + b1[0x01] = (b2[0x00] - b2[0x01]) * cos0; + b1[0x02] = b2[0x02] + b2[0x03]; + b1[0x03] = (b2[0x03] - b2[0x02]) * cos0; + b1[0x02] += b1[0x03]; + + b1[0x04] = b2[0x04] + b2[0x05]; + b1[0x05] = (b2[0x04] - b2[0x05]) * cos0; + b1[0x06] = b2[0x06] + b2[0x07]; + b1[0x07] = (b2[0x07] - b2[0x06]) * cos0; + b1[0x06] += b1[0x07]; + b1[0x04] += b1[0x06]; + b1[0x06] += b1[0x05]; + b1[0x05] += b1[0x07]; + + b1[0x08] = b2[0x08] + b2[0x09]; + b1[0x09] = (b2[0x08] - b2[0x09]) * cos0; + b1[0x0A] = b2[0x0A] + b2[0x0B]; + b1[0x0B] = (b2[0x0B] - b2[0x0A]) * cos0; + b1[0x0A] += b1[0x0B]; + + b1[0x0C] = b2[0x0C] + b2[0x0D]; + b1[0x0D] = (b2[0x0C] - b2[0x0D]) * cos0; + b1[0x0E] = b2[0x0E] + b2[0x0F]; + b1[0x0F] = (b2[0x0F] - b2[0x0E]) * cos0; + b1[0x0E] += b1[0x0F]; + b1[0x0C] += b1[0x0E]; + b1[0x0E] += b1[0x0D]; + b1[0x0D] += b1[0x0F]; + + b1[0x10] = b2[0x10] + b2[0x11]; + b1[0x11] = (b2[0x10] - b2[0x11]) * cos0; + b1[0x12] = b2[0x12] + b2[0x13]; + b1[0x13] = (b2[0x13] - b2[0x12]) * cos0; + b1[0x12] += b1[0x13]; + + b1[0x14] = b2[0x14] + b2[0x15]; + b1[0x15] = (b2[0x14] - b2[0x15]) * cos0; + b1[0x16] = b2[0x16] + b2[0x17]; + b1[0x17] = (b2[0x17] - b2[0x16]) * cos0; + b1[0x16] += b1[0x17]; + b1[0x14] += b1[0x16]; + b1[0x16] += b1[0x15]; + b1[0x15] += b1[0x17]; + + b1[0x18] = b2[0x18] + b2[0x19]; + b1[0x19] = (b2[0x18] - b2[0x19]) * cos0; + b1[0x1A] = b2[0x1A] + b2[0x1B]; + b1[0x1B] = (b2[0x1B] - b2[0x1A]) * cos0; + b1[0x1A] += b1[0x1B]; + + b1[0x1C] = b2[0x1C] + b2[0x1D]; + b1[0x1D] = (b2[0x1C] - b2[0x1D]) * cos0; + b1[0x1E] = b2[0x1E] + b2[0x1F]; + b1[0x1F] = (b2[0x1F] - b2[0x1E]) * cos0; + b1[0x1E] += b1[0x1F]; + b1[0x1C] += b1[0x1E]; + b1[0x1E] += b1[0x1D]; + b1[0x1D] += b1[0x1F]; + } + + out0[0x10*16] = b1[0x00]; + out0[0x10*12] = b1[0x04]; + out0[0x10* 8] = b1[0x02]; + out0[0x10* 4] = b1[0x06]; + out0[0x10* 0] = b1[0x01]; + out1[0x10* 0] = b1[0x01]; + out1[0x10* 4] = b1[0x05]; + out1[0x10* 8] = b1[0x03]; + out1[0x10*12] = b1[0x07]; + +#if 1 + out0[0x10*14] = b1[0x08] + b1[0x0C]; + out0[0x10*10] = b1[0x0C] + b1[0x0a]; + out0[0x10* 6] = b1[0x0A] + b1[0x0E]; + out0[0x10* 2] = b1[0x0E] + b1[0x09]; + out1[0x10* 2] = b1[0x09] + b1[0x0D]; + out1[0x10* 6] = b1[0x0D] + b1[0x0B]; + out1[0x10*10] = b1[0x0B] + b1[0x0F]; + out1[0x10*14] = b1[0x0F]; +#else + b1[0x08] += b1[0x0C]; + out0[0x10*14] = b1[0x08]; + b1[0x0C] += b1[0x0a]; + out0[0x10*10] = b1[0x0C]; + b1[0x0A] += b1[0x0E]; + out0[0x10* 6] = b1[0x0A]; + b1[0x0E] += b1[0x09]; + out0[0x10* 2] = b1[0x0E]; + b1[0x09] += b1[0x0D]; + out1[0x10* 2] = b1[0x09]; + b1[0x0D] += b1[0x0B]; + out1[0x10* 6] = b1[0x0D]; + b1[0x0B] += b1[0x0F]; + out1[0x10*10] = b1[0x0B]; + out1[0x10*14] = b1[0x0F]; +#endif + + { + real tmp; + tmp = b1[0x18] + b1[0x1C]; + out0[0x10*15] = tmp + b1[0x10]; + out0[0x10*13] = tmp + b1[0x14]; + tmp = b1[0x1C] + b1[0x1A]; + out0[0x10*11] = tmp + b1[0x14]; + out0[0x10* 9] = tmp + b1[0x12]; + tmp = b1[0x1A] + b1[0x1E]; + out0[0x10* 7] = tmp + b1[0x12]; + out0[0x10* 5] = tmp + b1[0x16]; + tmp = b1[0x1E] + b1[0x19]; + out0[0x10* 3] = tmp + b1[0x16]; + out0[0x10* 1] = tmp + b1[0x11]; + tmp = b1[0x19] + b1[0x1D]; + out1[0x10* 1] = tmp + b1[0x11]; + out1[0x10* 3] = tmp + b1[0x15]; + tmp = b1[0x1D] + b1[0x1B]; + out1[0x10* 5] = tmp + b1[0x15]; + out1[0x10* 7] = tmp + b1[0x13]; + tmp = b1[0x1B] + b1[0x1F]; + out1[0x10* 9] = tmp + b1[0x13]; + out1[0x10*11] = tmp + b1[0x17]; + out1[0x10*13] = b1[0x17] + b1[0x1F]; + out1[0x10*15] = b1[0x1F]; + } +} + +/* + * the call via dct64 is a trick to force GCC to use + * (new) registers for the b1,b2 pointer to the bufs[xx] field + */ +void dct64(real *a,real *b,real *c) +{ + real bufs[0x40]; + dct64_1(a,b,bufs,bufs+0x20,c); +} + Added: freeswitch/trunk/src/mod/formats/mod_shout/decode_i386.c ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/decode_i386.c Mon Mar 12 22:02:28 2007 @@ -0,0 +1,153 @@ +/* + * Mpeg Layer-1,2,3 audio decoder + * ------------------------------ + * copyright (c) 1995,1996,1997 by Michael Hipp, All rights reserved. + * See also 'README' + * + * slighlty optimized for machines without autoincrement/decrement. + * The performance is highly compiler dependend. Maybe + * the decode.c version for 'normal' processor may be faster + * even for Intel processors. + */ + +#include <stdlib.h> +#include <math.h> +#include <string.h> + + +#include "mpglib.h" + + + + /* old WRITE_SAMPLE */ +#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_mono(struct mpstr *mp,real *bandPtr,unsigned char *samples,int *pnt) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp; + int i,ret; + int pnt1 = 0; + + ret = synth_1to1(mp,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(struct mpstr *mp, real *bandPtr,int channel,unsigned char *out,int *pnt) +{ + static const int step = 2; + int bo; + short *samples = (short *) (out + *pnt); + + real *b0,(*buf)[0x110]; + int clip = 0; + int bo1; + + bo = mp->synth_bo; + + if(!channel) { + bo--; + bo &= 0xf; + buf = mp->synth_buffs[0]; + } + else { + samples++; + buf = mp->synth_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); + } + + mp->synth_bo = bo; + + { + register int j; + real *window = decwin + 16 - bo1; + + for (j=16;j;j--,b0+=0x10,window+=0x20,samples+=step) + { + real sum; + sum = window[0x0] * b0[0x0]; + sum -= window[0x1] * b0[0x1]; + sum += window[0x2] * b0[0x2]; + sum -= window[0x3] * b0[0x3]; + sum += window[0x4] * b0[0x4]; + sum -= window[0x5] * b0[0x5]; + sum += window[0x6] * b0[0x6]; + sum -= window[0x7] * b0[0x7]; + sum += window[0x8] * b0[0x8]; + sum -= window[0x9] * b0[0x9]; + sum += window[0xA] * b0[0xA]; + sum -= window[0xB] * b0[0xB]; + sum += window[0xC] * b0[0xC]; + sum -= window[0xD] * b0[0xD]; + sum += window[0xE] * b0[0xE]; + sum -= window[0xF] * b0[0xF]; + + 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-=0x10,window-=0x20,samples+=step) + { + real sum; + sum = -window[-0x1] * b0[0x0]; + sum -= window[-0x2] * b0[0x1]; + sum -= window[-0x3] * b0[0x2]; + sum -= window[-0x4] * b0[0x3]; + sum -= window[-0x5] * b0[0x4]; + sum -= window[-0x6] * b0[0x5]; + sum -= window[-0x7] * b0[0x6]; + sum -= window[-0x8] * b0[0x7]; + sum -= window[-0x9] * b0[0x8]; + sum -= window[-0xA] * b0[0x9]; + sum -= window[-0xB] * b0[0xA]; + sum -= window[-0xC] * b0[0xB]; + sum -= window[-0xD] * b0[0xC]; + sum -= window[-0xE] * b0[0xD]; + sum -= window[-0xF] * b0[0xE]; + sum -= window[-0x0] * b0[0xF]; + + WRITE_SAMPLE(samples,sum,clip); + } + } + *pnt += 128; + + return clip; +} + Added: freeswitch/trunk/src/mod/formats/mod_shout/decode_ntom.c ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/decode_ntom.c Mon Mar 12 22:02:28 2007 @@ -0,0 +1,218 @@ +/* + * 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 <stdlib.h> +#include <math.h> +#include <string.h> + +#include "mpg123.h" +#include "mpglib.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; + + +int synth_ntom_set_step(long m,long n) +{ + if(param.verbose > 1) + //printf("Init rate converter: %ld->%ld\n",m,n); + + if(n >= 96000 || m >= 96000 || m == 0 || n == 0) { + //printf("NtoM converter: illegal rates\n"); + return (1); + } + + n *= NTOM_MUL; + ntom_step = n / m; + + if(ntom_step > 8*NTOM_MUL) { + //printf("max. 1:8 conversion allowed!\n"); + return (1); + } + + ntom_val[0] = ntom_val[1] = NTOM_MUL>>1; + + return (0); + +} + + +int synth_ntom_mono (struct mpstr *mp, 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(mp, 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(struct mpstr *mp, real *bandPtr,int channel,unsigned char *out,int *pnt) +{ + static const int step = 2; + int bo; + short *samples = (short *) (out + *pnt); + + real *b0,(*buf)[0x110]; + int clip = 0; + int bo1; + int ntom; + + bo = mp->synth_bo; + + if(!channel) { + bo--; + bo &= 0xf; + buf = mp->synth_buffs[0]; + ntom = ntom_val[1] = ntom_val[0]; + } + else { + samples++; + out += 2; /* to compute the right *pnt value */ + buf = mp->synth_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); + } + + mp->synth_bo = bo; + + { + register int j; + real *window = (mp->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; +} + + Added: freeswitch/trunk/src/mod/formats/mod_shout/huffman.h ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/huffman.h Mon Mar 12 22:02:28 2007 @@ -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 } +}; + + Added: freeswitch/trunk/src/mod/formats/mod_shout/interface.c ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/interface.c Mon Mar 12 22:02:28 2007 @@ -0,0 +1,321 @@ + +#include <stdlib.h> +#include <stdio.h> + +#include "mpg123.h" +#include "mpglib.h" + + +void InitMP3Constants(void) +{ + init_layer3_const(); + make_decode_tables_const(); + +} + + +BOOL InitMP3(struct mpstr *mp, long outscale) +{ + /* quiet 4096 med 8192 */ + + memset(mp,0,sizeof(struct mpstr)); + + mp->framesize = 0; + mp->fsizeold = -1; + mp->bsize = 0; + mp->head = mp->tail = NULL; + mp->fr.single = 3; /* force mono */ + mp->bsnum = 0; + mp->synth_bo = 1; + mp->outsamplerate = 8000; + + make_decode_tables_scale(mp, outscale); + + init_layer3_sample_limits(mp, SBLIMIT); + + return !0; +} + +void ExitMP3(struct mpstr *mp) +{ + struct buf *b,*bn; + + b = mp->tail; + while(b) { + free(b->pnt); + bn = b->next; + free(b); + b = bn; + } +} + +static struct buf *addbuf(struct mpstr *mp,char *buf,int size) +{ + struct buf *nbuf; + + nbuf = malloc( sizeof(struct buf) ); + if(!nbuf) { + //printf("Out of memory!\n"); + return NULL; + } + nbuf->pnt = malloc(size); + if(!nbuf->pnt) { + free(nbuf); + return NULL; + } + nbuf->size = size; + memcpy(nbuf->pnt,buf,size); + nbuf->next = NULL; + nbuf->prev = mp->head; + nbuf->pos = 0; + + if(!mp->tail) { + mp->tail = nbuf; + } + else { + mp->head->next = nbuf; + } + + mp->head = nbuf; + mp->bsize += size; + + return nbuf; +} + +static void remove_buf(struct mpstr *mp) +{ + struct buf *buf = mp->tail; + + mp->tail = buf->next; + if(mp->tail) + mp->tail->prev = NULL; + else { + mp->tail = mp->head = NULL; + } + + free(buf->pnt); + free(buf); + +} + +static int read_buf_byte(int *error, struct mpstr *mp) +{ + unsigned int b;int pos; + + pos = mp->tail->pos; + while(pos >= mp->tail->size) { + remove_buf(mp); + pos = mp->tail->pos; + if(!mp->tail) { + /* We may pick up this error a few times*/ + /* But things have gone pear shaped */ + //printf("Fatal Buffer error!\n"); + *error = 1; + return (0); + } + } + + b = mp->tail->pnt[pos]; + mp->bsize--; + mp->tail->pos++; + + + return b; +} + +static int read_head(struct mpstr *mp) +{ + unsigned long head; + int error=0; + + + head = read_buf_byte(&error, mp); + head <<= 8; + head |= read_buf_byte(&error, mp); + head <<= 8; + head |= read_buf_byte(&error, mp); + head <<= 8; + head |= read_buf_byte(&error, mp); + + mp->header = head; + + if(error){ + return (1); + }else + return (0); + +} + +static int head_check(unsigned long head) +{ + if( (head & 0xffe00000) != 0xffe00000) + return FALSE; + if(!((head>>17)&3)) + return FALSE; + if( ((head>>12)&0xf) == 0xf || ((head>>12)&0xf) == 0) + return FALSE; + if( ((head>>10)&0x3) == 0x3 ) + return FALSE; + if ((head & 0xffff0000) == 0xfffe0000) + return FALSE; + + return TRUE; +} + +static int head_shift(struct mpstr *mp) +{ + unsigned long head; + int error = 0; + + head = mp->header; + + head <<= 8; + head |= read_buf_byte(&error, mp); + + mp->header = head; + + if (error){ + return (1); + }else + return (0); + +} + + +int decodeMP3(struct mpstr *mp,char *in,int isize,char *out, + int osize,int *done) +{ + int len; + long n,m; + int down_sample_sblimit; + + if(osize < 4608) { + //printf("To less out space\n"); + return MP3_ERR; + } + + if(in) { + if(addbuf(mp,in,isize) == NULL) { + return MP3_ERR; + } + } + + /* First decode header */ + if(mp->framesize == 0) { + if(mp->bsize < 4) { + return MP3_NEED_MORE; + } + if (read_head(mp)) + return MP3_ERR; + + if(!head_check(mp->header) ) { + int i; + + //printf("Junk at the beginning of frame %08lx\n",mp->header); + + /* step in byte steps through next 64K */ + for(i=0;i<65536;i++) { + if(!mp->bsize) + return MP3_NEED_MORE; + + if(head_shift(mp)) + return MP3_ERR; + + if(head_check(mp->header)) + break; + } + if(i == 65536) { + //printf("Giving up searching valid MPEG header\n"); + return MP3_ERR; + } + } + + decode_header(&mp->fr,mp->header); + mp->framesize = mp->fr.framesize; + + if (!mp->initmp3){ + mp->initmp3 = 1; + + n = freqs[mp->fr.sampling_frequency]; + if (mp->outsamplerate) { + m = mp->outsamplerate; + } + else { + m =n; + } + + if (synth_ntom_set_step(n,m)) + return MP3_ERR; + + + if(n>m) { + down_sample_sblimit = SBLIMIT * m; + down_sample_sblimit /= n; + } + else { + down_sample_sblimit = SBLIMIT; + } + + init_layer3_sample_limits(mp, down_sample_sblimit); + + } + } + + + if(mp->fr.framesize > mp->bsize) + return MP3_NEED_MORE; + + (mp->worksample).wordpointer = mp->bsspace[mp->bsnum] + 512; + mp->bsnum = (mp->bsnum + 1) & 0x1; + (mp->worksample).bitindex = 0; + + len = 0; + while(len < mp->framesize) { + int nlen; + int blen = mp->tail->size - mp->tail->pos; + if( (mp->framesize - len) <= blen) { + nlen = mp->framesize-len; + } + else { + nlen = blen; + } + memcpy((mp->worksample).wordpointer+len,mp->tail->pnt+mp->tail->pos,nlen); + len += nlen; + mp->tail->pos += nlen; + mp->bsize -= nlen; + if(mp->tail->pos == mp->tail->size) { + remove_buf(mp); + } + } + + *done = 0; + if(mp->fr.error_protection) + getbits(mp, 16); + + if (do_layer3(mp,(unsigned char *) out,done)) + return MP3_ERR; + + mp->fsizeold = mp->framesize; + mp->framesize = 0; + + return MP3_OK; +} + +int set_pointer(struct mpstr *mp, long backstep) +{ + unsigned char *bsbufold; + if(mp->fsizeold < 0 && backstep > 0) { + //printf("Can't step back %ld!\n",backstep); + return MP3_ERR; + } + bsbufold = mp->bsspace[mp->bsnum] + 512; + (mp->worksample).wordpointer -= backstep; + if (backstep) + memcpy((mp->worksample).wordpointer,bsbufold+mp->fsizeold-backstep,backstep); + (mp->worksample).bitindex = 0; + return MP3_OK; +} + + + + Added: freeswitch/trunk/src/mod/formats/mod_shout/layer3.c ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/layer3.c Mon Mar 12 22:02:28 2007 @@ -0,0 +1,2028 @@ +/* + * Mpeg Layer-3 audio decoder + * -------------------------- + * copyright (c) 1995,1996,1997 by Michael Hipp. + * All rights reserved. See also 'README' + */ + + +#include <stdlib.h> +#include "mpg123.h" +#include "mpglib.h" +#include "huffman.h" + +#define MPEG1 + +/* These should all be constants setup once using init_layer3_const */ +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]; +static real COS9[9]; +static real COS6_1,COS6_2; +static real tfcos36[9]; +static real tfcos12[3]; + +struct bandInfoStruct { + short longIdx[23]; + short longDiff[22]; + short shortIdx[14]; + short shortDiff[13]; +}; + + +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 } , + {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 constant tables for layer-3 + */ +void init_layer3_const(void) +{ + int i,j,k,l; + + for(i=-256;i<118+4;i++) + 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); + + 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<len[j];i+=2) + win1[j][i] = + win[j][i]; + for(i=1;i<len[j];i+=2) + win1[j][i] = - win[j][i]; + } + + for(i=0;i<16;i++) + { + double t = tan( (double) i * M_PI / 12.0 ); + tan1_1[i] = t / (1.0+t); + tan2_1[i] = 1.0 / (1.0 + t); + tan1_2[i] = M_SQRT2 * t / (1.0+t); + tan2_2[i] = M_SQRT2 / (1.0 + t); + + for(j=0;j<2;j++) { + double base = pow(2.0,-0.25*(j+1.0)); + double p1=1.0,p2=1.0; + if(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; + short *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(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); + } + } + } +} + +/* MP3 file specific rates */ +void init_layer3_sample_limits(struct mpstr *mp, int down_sample_sblimit) +{ + int i,j; + for(j=0;j<9;j++) { + for(i=0;i<23;i++) { + (mp->longLimit)[j][i] = (bandInfo[j].longIdx[i] - 1 + 8) / 18 + 1; + if((mp->longLimit)[j][i] > (down_sample_sblimit) ) + (mp->longLimit)[j][i] = down_sample_sblimit; + } + for(i=0;i<14;i++) { + (mp->shortLimit)[j][i] = (bandInfo[j].shortIdx[i] - 1) / 18 + 1; + if((mp->shortLimit)[j][i] > (down_sample_sblimit) ) + (mp->shortLimit)[j][i] = down_sample_sblimit; + } + } +} + + + +/* + * read additional side information + */ +#ifdef MPEG1 +static int III_get_side_info_1(struct mpstr *mp, struct III_sideinfo *si,int stereo, + int ms_stereo,long sfreq,int single) +{ + int ch, gr; + int powdiff = (single == 3) ? 4 : 0; + + si->main_data_begin = getbits(mp, 9); + if (stereo == 1) + si->private_bits = getbits_fast(mp, 5); + else + si->private_bits = getbits_fast(mp, 3); + + for (ch=0; ch<stereo; ch++) { + si->ch[ch].gr[0].scfsi = -1; + si->ch[ch].gr[1].scfsi = getbits_fast(mp, 4); + } + + for (gr=0; gr<2; gr++) + { + for (ch=0; ch<stereo; ch++) + { + register struct gr_info_s *gr_info = &(si->ch[ch].gr[gr]); + + gr_info->part2_3_length = getbits(mp, 12); + gr_info->big_values = getbits_fast(mp, 9); + if(gr_info->big_values > 288) { + //printf("big_values too large!\n"); + gr_info->big_values = 288; + } + gr_info->pow2gain = gainpow2+256 - getbits_fast(mp, 8) + powdiff; + if(ms_stereo) + gr_info->pow2gain += 2; + gr_info->scalefac_compress = getbits_fast(mp, 4); +/* window-switching flag == 1 for block_Type != 0 .. and block-type == 0 -> win-sw-flag = 0 */ + if(get1bit(mp)) + { + int i; + gr_info->block_type = getbits_fast(mp, 2); + gr_info->mixed_block_flag = get1bit(mp); + gr_info->table_select[0] = getbits_fast(mp, 5); + gr_info->table_select[1] = getbits_fast(mp, 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(mp, 3)<<3); + + if(gr_info->block_type == 0) { + //printf("Blocktype == 0 and window-switching == 1 not allowed.\n"); + return (1); + } + /* region_count/start parameters are implicit in this case. */ + gr_info->region1start = 36>>1; + gr_info->region2start = 576>>1; + } + else + { + int i,r0c,r1c; + for (i=0; i<3; i++) + gr_info->table_select[i] = getbits_fast(mp, 5); + r0c = getbits_fast(mp, 4); + r1c = getbits_fast(mp, 3); + gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; + gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; + gr_info->block_type = 0; + gr_info->mixed_block_flag = 0; + } + gr_info->preflag = get1bit(mp); + gr_info->scalefac_scale = get1bit(mp); + gr_info->count1table_select = get1bit(mp); + } + } + return (0); + +} +#endif + +/* + * Side Info for MPEG 2.0 / LSF + */ +static int III_get_side_info_2(struct mpstr *mp, struct III_sideinfo *si,int stereo, + int ms_stereo,long sfreq,int single) +{ + int ch; + int powdiff = (single == 3) ? 4 : 0; + + si->main_data_begin = getbits(mp, 8); + if (stereo == 1) + si->private_bits = get1bit(mp); + else + si->private_bits = getbits_fast(mp, 2); + + for (ch=0; ch<stereo; ch++) + { + register struct gr_info_s *gr_info = &(si->ch[ch].gr[0]); + + gr_info->part2_3_length = getbits(mp, 12); + gr_info->big_values = getbits_fast(mp, 9); + if(gr_info->big_values > 288) { + //printf("big_values too large!\n"); + gr_info->big_values = 288; + } + gr_info->pow2gain = gainpow2+256 - getbits_fast(mp, 8) + powdiff; + if(ms_stereo) + gr_info->pow2gain += 2; + gr_info->scalefac_compress = getbits(mp, 9); +/* window-switching flag == 1 for block_Type != 0 .. and block-type == 0 -> win-sw-flag = 0 */ + if(get1bit(mp)) + { + int i; + gr_info->block_type = getbits_fast(mp, 2); + gr_info->mixed_block_flag = get1bit(mp); + gr_info->table_select[0] = getbits_fast(mp, 5); + gr_info->table_select[1] = getbits_fast(mp, 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(mp, 3)<<3); + + if(gr_info->block_type == 0) { + //printf("Blocktype == 0 and window-switching == 1 not allowed.\n"); + return (1); + } + /* region_count/start parameters are implicit in this case. */ +/* check this again! */ + if(gr_info->block_type == 2) + gr_info->region1start = 36>>1; + else if(sfreq == 8) +/* check this for 2.5 and 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(mp, 5); + r0c = getbits_fast(mp, 4); + r1c = getbits_fast(mp, 3); + gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; + gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; + gr_info->block_type = 0; + gr_info->mixed_block_flag = 0; + } + gr_info->scalefac_scale = get1bit(mp); + gr_info->count1table_select = get1bit(mp); + } + return (0); +} + +/* + * read scalefactors + */ +#ifdef MPEG1 +static int III_get_scale_factors_1(struct mpstr *mp, int *scf,struct gr_info_s *gr_info) +{ + static 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(mp, num0); + i = 9; + numbits -= num0; /* num0 * 17 + num1 * 18 */ + } + + for (;i;i--) + *scf++ = getbits_fast(mp, num0); + for (i = 18; i; i--) + *scf++ = getbits_fast(mp, 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(mp, num0); + for(i=10;i;i--) + *scf++ = getbits_fast(mp, num1); + numbits = (num0 + num1) * 10 + num0; + } + else { + numbits = 0; + if(!(scfsi & 0x8)) { + for (i=6;i;i--) + *scf++ = getbits_fast(mp, num0); + numbits += num0 * 6; + } + else { + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* set to ZERO necessary? */ + *scf++ = 0; *scf++ = 0; *scf++ = 0; + } + + if(!(scfsi & 0x4)) { + for (i=5;i;i--) + *scf++ = getbits_fast(mp, num0); + numbits += num0 * 5; + } + else { + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* set to ZERO necessary? */ + *scf++ = 0; *scf++ = 0; + } + + if(!(scfsi & 0x2)) { + for(i=5;i;i--) + *scf++ = getbits_fast(mp, num1); + numbits += num1 * 5; + } + else { + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* set to ZERO necessary? */ + *scf++ = 0; *scf++ = 0; + } + + if(!(scfsi & 0x1)) { + for (i=5;i;i--) + *scf++ = getbits_fast(mp, num1); + numbits += num1 * 5; + } + else { + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* set to ZERO necessary? */ + *scf++ = 0; *scf++ = 0; + } + } + + *scf++ = 0; /* no l[21] in original sources */ + } + return numbits; +} +#endif + +static int III_get_scale_factors_2(struct mpstr *mp, int *scf,struct gr_info_s *gr_info,int i_stereo) +{ + unsigned char *pnt; + int i,j; + unsigned int slen; + int n = 0; + int numbits = 0; + + 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(mp, num); + numbits += pnt[i] * num; + } + else { + for(j=0;j<(int)(pnt[i]);j++) + *scf++ = 0; + } + } + + n = (n << 1) + 1; + for(i=0;i<n;i++) + *scf++ = 0; + + return numbits; +} + +static int pretab1[22] = {0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,3,3,3,2,0}; +static int pretab2[22] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; + +/* + * don't forget to apply the same changes to III_dequantize_sample_ms() !!! + */ +static int III_dequantize_sample(struct mpstr *mp, real xr[SBLIMIT][SSLIMIT],int *scf, + struct gr_info_s *gr_info,int sfreq,int part2bits) +{ + int shift = 1 + gr_info->scalefac_scale; + real *xrpnt = (real *) xr; + int l[3],l3; + int part2remain = gr_info->part2_3_length - part2bits; + int *me; + + { + int bv = gr_info->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] = 0; 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=0,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; + while((y=*val++)<0) { + if (get1bit(mp)) + val -= y; + part2remain--; + } + x = y >> 4; + y &= 0xf; + } + if(x == 15) { + max[lwin] = cb; + part2remain -= h->linbits+1; + x += getbits(mp, h->linbits); + if(get1bit(mp)) + *xrpnt = -ispow[x] * v; + else + *xrpnt = ispow[x] * v; + } + else if(x) { + max[lwin] = cb; + if(get1bit(mp)) + *xrpnt = -ispow[x] * v; + else + *xrpnt = ispow[x] * v; + part2remain--; + } + else + *xrpnt = 0.0; + xrpnt += step; + if(y == 15) { + max[lwin] = cb; + part2remain -= h->linbits+1; + y += getbits(mp, h->linbits); + if(get1bit(mp)) + *xrpnt = -ispow[y] * v; + else + *xrpnt = ispow[y] * v; + } + else if(y) { + max[lwin] = cb; + if(get1bit(mp)) + *xrpnt = -ispow[y] * v; + else + *xrpnt = ispow[y] * v; + part2remain--; + } + else + *xrpnt = 0.0; + xrpnt += step; + } + } + for(;l3 && (part2remain > 0);l3--) { + struct newhuff *h = htc+gr_info->count1table_select; + register short *val = h->table,a; + + while((a=*val++)<0) { + part2remain--; + if(part2remain < 0) { + part2remain++; + a = 0; + break; + } + if (get1bit(mp)) + val -= a; + } + + 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; + part2remain--; + if(part2remain < 0) { + part2remain++; + break; + } + if(get1bit(mp)) + *xrpnt = -v; + else + *xrpnt = v; + } + else + *xrpnt = 0.0; + xrpnt += step; + } + } + + while( m < me ) { + if(!mc) { + mc = *m++; + xrpnt = ((real *) xr) + *m++; + if( (*m++) == 3) + step = 1; + else + step = 3; + m++; /* cb */ + } + mc--; + *xrpnt = 0.0; + xrpnt += step; + *xrpnt = 0.0; + xrpnt += step; +/* we could add a little opt. here: + * if we finished a band for window 3 or a long band + * further bands could copied in a simple loop without a + * special 'map' decoding + */ + } + + 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 ? (mp->shortLimit)[sfreq][rmax] : (mp->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; + register int *m = map[sfreq][2]; + register real v = 0.0; + register int mc = 0; +#if 0 + me = mapend[sfreq][2]; +#endif + + /* + * 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++; + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + cb = *m++; + } + { + register short *val = h->table; + while((y=*val++)<0) { + if (get1bit(mp)) + val -= y; + part2remain--; + } + x = y >> 4; + y &= 0xf; + } + if (x == 15) { + max = cb; + part2remain -= h->linbits+1; + x += getbits(mp, h->linbits); + if(get1bit(mp)) + *xrpnt++ = -ispow[x] * v; + else + *xrpnt++ = ispow[x] * v; + } + else if(x) { + max = cb; + if(get1bit(mp)) + *xrpnt++ = -ispow[x] * v; + else + *xrpnt++ = ispow[x] * v; + part2remain--; + } + else + *xrpnt++ = 0.0; + + if (y == 15) { + max = cb; + part2remain -= h->linbits+1; + y += getbits(mp, h->linbits); + if(get1bit(mp)) + *xrpnt++ = -ispow[y] * v; + else + *xrpnt++ = ispow[y] * v; + } + else if(y) { + max = cb; + if(get1bit(mp)) + *xrpnt++ = -ispow[y] * v; + else + *xrpnt++ = ispow[y] * v; + part2remain--; + } + else + *xrpnt++ = 0.0; + } + } + + /* + * short (count1table) values + */ + for(;l3 && (part2remain > 0);l3--) { + struct newhuff *h = htc+gr_info->count1table_select; + register short *val = h->table,a; + + while((a=*val++)<0) { + part2remain--; + if(part2remain < 0) { + part2remain++; + a = 0; + break; + } + if (get1bit(mp)) + val -= a; + } + + for(i=0;i<4;i++) { + if(!(i & 1)) { + if(!mc) { + mc = *m++; + cb = *m++; + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + } + mc--; + } + if ( (a & (0x8>>i)) ) { + max = cb; + part2remain--; + if(part2remain < 0) { + part2remain++; + break; + } + if(get1bit(mp)) + *xrpnt++ = -v; + else + *xrpnt++ = v; + } + else + *xrpnt++ = 0.0; + } + } + + /* + * zero part + */ + for(i=(&xr[SBLIMIT][0]-xrpnt)>>1;i;i--) { + *xrpnt++ = 0.0; + *xrpnt++ = 0.0; + } + + gr_info->maxbandl = max+1; + gr_info->maxb = (mp->longLimit)[sfreq][gr_info->maxbandl]; + } + + while( part2remain > 16 ) { + getbits(mp, 16); /* Dismiss stuffing Bits */ + part2remain -= 16; + } + if(part2remain > 0) + getbits(mp, part2remain); + else if(part2remain < 0) { + //printf("mpg123: Can't rewind stream by %d bits!\n",-part2remain); + return 1; /* -> error */ + } + return 0; +} + +#if 0 +static int III_dequantize_sample_ms(real xr[2][SBLIMIT][SSLIMIT],int *scf, + struct gr_info_s *gr_info,int sfreq,int part2bits) +{ + int shift = 1 + gr_info->scalefac_scale; + real *xrpnt = (real *) xr[1]; + real *xr0pnt = (real *) xr[0]; + int l[3],l3; + int part2remain = gr_info->part2_3_length - part2bits; + int *me; + + { + int bv = gr_info->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 gain + */ + if(bv <= region1) { + l[0] = bv; l[1] = 0; 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) { + int i,max[4]; + int step=0,lwin=0,cb=0; + register real v = 0.0; + register int *m,mc = 0; + + 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]; + } + + for(i=0;i<2;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++; + xrpnt = ((real *) xr[1]) + *m; + xr0pnt = ((real *) xr[0]) + *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; + while((y=*val++)<0) { + if (get1bit(mp)) + val -= y; + part2remain--; + } + x = y >> 4; + y &= 0xf; + } + if(x == 15) { + max[lwin] = cb; + part2remain -= h->linbits+1; + x += getbits(mp, h->linbits); + if(get1bit(mp)) { + real a = ispow[x] * v; + *xrpnt = *xr0pnt + a; + *xr0pnt -= a; + } + else { + real a = ispow[x] * v; + *xrpnt = *xr0pnt - a; + *xr0pnt += a; + } + } + else if(x) { + max[lwin] = cb; + if(get1bit(mp)) { + real a = ispow[x] * v; + *xrpnt = *xr0pnt + a; + *xr0pnt -= a; + } + else { + real a = ispow[x] * v; + *xrpnt = *xr0pnt - a; + *xr0pnt += a; + } + part2remain--; + } + else + *xrpnt = *xr0pnt; + xrpnt += step; + xr0pnt += step; + + if(y == 15) { + max[lwin] = cb; + part2remain -= h->linbits+1; + y += getbits(mp, h->linbits); + if(get1bit(mp)) { + real a = ispow[y] * v; + *xrpnt = *xr0pnt + a; + *xr0pnt -= a; + } + else { + real a = ispow[y] * v; + *xrpnt = *xr0pnt - a; + *xr0pnt += a; + } + } + else if(y) { + max[lwin] = cb; + if(get1bit(mp)) { + real a = ispow[y] * v; + *xrpnt = *xr0pnt + a; + *xr0pnt -= a; + } + else { + real a = ispow[y] * v; + *xrpnt = *xr0pnt - a; + *xr0pnt += a; + } + part2remain--; + } + else + *xrpnt = *xr0pnt; + xrpnt += step; + xr0pnt += step; + } + } + + for(;l3 && (part2remain > 0);l3--) { + struct newhuff *h = htc+gr_info->count1table_select; + register short *val = h->table,a; + + while((a=*val++)<0) { + part2remain--; + if(part2remain < 0) { + part2remain++; + a = 0; + break; + } + if (get1bit(mp)) + val -= a; + } + + for(i=0;i<4;i++) { + if(!(i & 1)) { + if(!mc) { + mc = *m++; + xrpnt = ((real *) xr[1]) + *m; + xr0pnt = ((real *) xr[0]) + *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; + part2remain--; + if(part2remain < 0) { + part2remain++; + break; + } + if(get1bit(mp)) { + *xrpnt = *xr0pnt + v; + *xr0pnt -= v; + } + else { + *xrpnt = *xr0pnt - v; + *xr0pnt += v; + } + } + else + *xrpnt = *xr0pnt; + xrpnt += step; + xr0pnt += step; + } + } + + while( m < me ) { + if(!mc) { + mc = *m++; + xrpnt = ((real *) xr[1]) + *m; + xr0pnt = ((real *) xr[0]) + *m++; + if(*m++ == 3) + step = 1; + else + step = 3; + m++; /* cb */ + } + mc--; + *xrpnt = *xr0pnt; + xrpnt += step; + xr0pnt += step; + *xrpnt = *xr0pnt; + xrpnt += step; + xr0pnt += step; +/* we could add a little opt. here: + * if we finished a band for window 3 or a long band + * further bands could copied in a simple loop without a + * special 'map' decoding + */ + } + + 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 ? (mp->shortLimit)[sfreq][rmax] : (mp->longLimit)[sfreq][max[3]+1]; + } + } + else { + int *pretab = gr_info->preflag ? pretab1 : pretab2; + int i,max = -1; + int cb = 0; + register int mc=0,*m = map[sfreq][2]; + register real v = 0.0; +#if 0 + me = mapend[sfreq][2]; +#endif + + 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++; + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + } + { + register short *val = h->table; + while((y=*val++)<0) { + if (get1bit(mp)) + val -= y; + part2remain--; + } + x = y >> 4; + y &= 0xf; + } + if (x == 15) { + max = cb; + part2remain -= h->linbits+1; + x += getbits(mp, h->linbits); + if(get1bit(mp)) { + real a = ispow[x] * v; + *xrpnt++ = *xr0pnt + a; + *xr0pnt++ -= a; + } + else { + real a = ispow[x] * v; + *xrpnt++ = *xr0pnt - a; + *xr0pnt++ += a; + } + } + else if(x) { + max = cb; + if(get1bit(mp)) { + real a = ispow[x] * v; + *xrpnt++ = *xr0pnt + a; + *xr0pnt++ -= a; + } + else { + real a = ispow[x] * v; + *xrpnt++ = *xr0pnt - a; + *xr0pnt++ += a; + } + part2remain--; + } + else + *xrpnt++ = *xr0pnt++; + + if (y == 15) { + max = cb; + part2remain -= h->linbits+1; + y += getbits(mp, h->linbits); + if(get1bit(mp)) { + real a = ispow[y] * v; + *xrpnt++ = *xr0pnt + a; + *xr0pnt++ -= a; + } + else { + real a = ispow[y] * v; + *xrpnt++ = *xr0pnt - a; + *xr0pnt++ += a; + } + } + else if(y) { + max = cb; + if(get1bit(mp)) { + real a = ispow[y] * v; + *xrpnt++ = *xr0pnt + a; + *xr0pnt++ -= a; + } + else { + real a = ispow[y] * v; + *xrpnt++ = *xr0pnt - a; + *xr0pnt++ += a; + } + part2remain--; + } + else + *xrpnt++ = *xr0pnt++; + } + } + + for(;l3 && (part2remain > 0);l3--) { + struct newhuff *h = htc+gr_info->count1table_select; + register short *val = h->table,a; + + while((a=*val++)<0) { + part2remain--; + if(part2remain < 0) { + part2remain++; + a = 0; + break; + } + if (get1bit(mp)) + val -= a; + } + + for(i=0;i<4;i++) { + if(!(i & 1)) { + if(!mc) { + mc = *m++; + cb = *m++; + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + } + mc--; + } + if ( (a & (0x8>>i)) ) { + max = cb; + part2remain--; + if(part2remain <= 0) { + part2remain++; + break; + } + if(get1bit(mp)) { + *xrpnt++ = *xr0pnt + v; + *xr0pnt++ -= v; + } + else { + *xrpnt++ = *xr0pnt - v; + *xr0pnt++ += v; + } + } + else + *xrpnt++ = *xr0pnt++; + } + } + for(i=(&xr[1][SBLIMIT][0]-xrpnt)>>1;i;i--) { + *xrpnt++ = *xr0pnt++; + *xrpnt++ = *xr0pnt++; + } + + gr_info->maxbandl = max+1; + gr_info->maxb = longLimit[sfreq][gr_info->maxbandl]; + } + + while ( part2remain > 16 ) { + getbits(mp, 16); /* Dismiss stuffing Bits */ + part2remain -= 16; + } + if(part2remain > 0 ) + getbits(mp, part2remain); + else if(part2remain < 0) { + //printf("mpg123_ms: Can't rewind stream by %d bits!\n",-part2remain); + return 1; /* -> error */ + } + return 0; +} +#endif + +/* + * 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]; + real *tab1,*tab2; + + 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; + } + } + + 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; .. ; . ) */ + + if (do_l) + { +/* also check l-part, if ALL bands in the three windows are 'empty' + * and mode = mixed_mode + */ + 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]; + 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]; /* copy l-band 20 to l-band 21 */ + if(is_p != 7) + { + 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; + } + } + } /* ... */ +} + +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++) ); + } + } + } +} + +/* + DCT insipired by Jeff Tsay's DCT from the maplay package + this is an optimized version with manual unroll. + + References: + [1] S. Winograd: "On Computing the Discrete Fourier Transform", + Mathematics of Computation, Volume 32, Number 141, January 1978, + Pages 175-199 +*/ + +static void dct36(real *inbuf,real *o1,real *o2,real *wintab,real *tsbuf) +{ + { + 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]; + + + { + +#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]; + tb33 = in[2*3+1] * c[3]; + tb66 = in[2*6+1] * c[6]; + + { + 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*0+0] + in[2*2+0] * c[2] + in[2*4+0] * c[4] + ta66 + in[2*8+0] * c[8]; + tmp2b = in[2*0+1] + 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*0+0] - in[2*2+0] * c[8] - in[2*4+0] * c[2] + ta66 + in[2*8+0] * c[4]; + tmp2b = in[2*0+1] - 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*0+0] - in[2*2+0] * c[4] + in[2*4+0] * c[8] + ta66 - in[2*8+0] * c[2]; + tmp2b = in[2*0+1] - 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); + } + } + + } +} + +/* + * 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) +{ + real *tspnt = (real *) tsOut; + real (*block)[2][SBLIMIT*SSLIMIT] = mp->hybrid_block; + int *blc = mp->hybrid_blc; + real *rawout1,*rawout2; + int bt; + int sb = 0; + + { + int b = blc[ch]; + rawout1=block[b][ch]; + b=-b+1; + rawout2=block[b][ch]; + blc[ch] = b; + } + + + if(gr_info->mixed_block_flag) { + sb = 2; + dct36(fsIn[0],rawout1,rawout2,win[0],tspnt); + dct36(fsIn[1],rawout1+18,rawout2+18,win1[0],tspnt+1); + rawout1 += 36; rawout2 += 36; tspnt += 2; + } + + bt = gr_info->block_type; + if(bt == 2) { + for (; sb<gr_info->maxb; 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 (; sb<gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { + dct36(fsIn[sb],rawout1,rawout2,win[bt],tspnt); + dct36(fsIn[sb+1],rawout1+18,rawout2+18,win1[bt],tspnt+1); + } + } + + for(;sb<SBLIMIT;sb++,tspnt++) { + int i; + for(i=0;i<SSLIMIT;i++) { + tspnt[i*SBLIMIT] = *rawout1++; + *rawout2++ = 0.0; + } + } +} + +/* + * main layer3 handler + */ +int do_layer3(struct mpstr *mp,unsigned char *pcm_sample,int *pcm_point) +{ + + int gr, ch, ss,clip=0; + int scalefacs[39]; /* max 39 for short[13][3] mode, mixed: 38, long: 22 */ + struct III_sideinfo sideinfo; + struct frame *fr; + int stereo, single, sfreq; + int ms_stereo,i_stereo; + int stereo1,granules; + + fr = &(mp->fr); + stereo = fr->stereo; + single = fr->single; + sfreq = fr->sampling_frequency; + + + + 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; + i_stereo = fr->mode_ext & 0x1; + } + else + ms_stereo = i_stereo = 0; + + if(fr->lsf) { + granules = 1; + if (III_get_side_info_2(mp, &sideinfo,stereo,ms_stereo,sfreq,single)) + return (MP3_ERR); + } + else { + granules = 2; +#ifdef MPEG1 + if ( III_get_side_info_1(mp, &sideinfo,stereo,ms_stereo,sfreq,single)) + return (MP3_ERR); + +#else + //printf("Not supported\n"); +#endif + } + + if(set_pointer(mp, sideinfo.main_data_begin) == MP3_ERR) + return 0; + + for (gr=0;gr<granules;gr++) + { + static real hybridIn[2][SBLIMIT][SSLIMIT]; + static real hybridOut[2][SSLIMIT][SBLIMIT]; + + { + struct gr_info_s *gr_info = &(sideinfo.ch[0].gr[gr]); + long part2bits; + if(fr->lsf) + part2bits = III_get_scale_factors_2(mp, scalefacs,gr_info,0); + else { +#ifdef MPEG1 + part2bits = III_get_scale_factors_1(mp, scalefacs,gr_info); +#else + //printf("Not supported\n"); +#endif + } + if(III_dequantize_sample(mp, hybridIn[0], scalefacs,gr_info,sfreq,part2bits)) + return (MP3_ERR); + } + 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(mp, scalefacs,gr_info,i_stereo); + else { +#ifdef MPEG1 + part2bits = III_get_scale_factors_1(mp, scalefacs,gr_info); +#else + //printf("Not supported\n"); +#endif + } + + if(III_dequantize_sample(mp, hybridIn[1],scalefacs,gr_info,sfreq,part2bits)) + return (MP3_ERR); + + if(ms_stereo) { + int i; + for(i=0;i<SBLIMIT*SSLIMIT;i++) { + real tmp0,tmp1; + tmp0 = ((real *) hybridIn[0])[i]; + tmp1 = ((real *) hybridIn[1])[i]; + ((real *) hybridIn[1])[i] = tmp0 - tmp1; + ((real *) hybridIn[0])[i] = tmp0 + tmp1; + } + } + + if(i_stereo) + III_i_stereo(hybridIn,scalefacs,gr_info,sfreq,ms_stereo,fr->lsf); + + 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;i<SSLIMIT*gr_info->maxb;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;i<SSLIMIT*gr_info->maxb;i++) + *in0++ = *in1++; + } + break; + } + } + + for(ch=0;ch<stereo1;ch++) { + struct gr_info_s *gr_info = &(sideinfo.ch[ch].gr[gr]); + III_antialias(hybridIn[ch],gr_info); + III_hybrid(mp, hybridIn[ch], hybridOut[ch], ch,gr_info); + } + + for(ss=0;ss<SSLIMIT;ss++) { + if(single >= 0) { + clip += synth_ntom_mono(mp,hybridOut[0][ss],pcm_sample,pcm_point); + } + else { + int p1 = *pcm_point; + clip += synth_ntom(mp,hybridOut[0][ss],0,pcm_sample,&p1); + clip += synth_ntom(mp,hybridOut[1][ss],1,pcm_sample,pcm_point); + } + } + } + + return 0; +} + + Modified: freeswitch/trunk/src/mod/formats/mod_shout/mod_shout.c ============================================================================== --- freeswitch/trunk/src/mod/formats/mod_shout/mod_shout.c (original) +++ freeswitch/trunk/src/mod/formats/mod_shout/mod_shout.c Mon Mar 12 22:02:28 2007 @@ -30,9 +30,16 @@ * example filename: shout://user:pass@host.com/mount.mp3 * */ +#include "mpg123.h" +#include "mpglib.h" #include <switch.h> #include <shout/shout.h> #include <lame/lame.h> +#include <curl/curl.h> + + +#define OUTSCALE 4096 +#define MP3BUFLEN OUTSCALE * 2 static const char modname[] = "mod_shout"; @@ -42,6 +49,12 @@ struct shout_context { shout_t *shout; lame_global_flags *gfp; + char *stream_url; + switch_mutex_t *audio_mutex; + switch_buffer_t *audio_buffer; + switch_memory_pool_t *memory_pool; + char decode_buf[MP3BUFLEN]; + struct mpstr mp; }; typedef struct shout_context shout_context_t; @@ -49,10 +62,15 @@ static inline void free_context(shout_context_t *context) { if (context) { + if (context->audio_buffer) { + switch_buffer_destroy(&context->audio_buffer); + } + if (context->shout) { shout_close(context->shout); context->shout = NULL; } + if (context->gfp) { lame_close(context->gfp); context->gfp = NULL; @@ -140,6 +158,50 @@ } +static size_t stream_callback(void *ptr, size_t size, size_t nmemb, void *data) +{ + register unsigned int realsize = (unsigned int)(size * nmemb); + shout_context_t *context = data; + int dlen; + + decodeMP3(&context->mp, data, realsize, context->decode_buf, sizeof(context->decode_buf), &dlen); + + switch_mutex_lock(context->audio_mutex); + switch_buffer_write(context->audio_buffer, context->decode_buf, dlen); + switch_mutex_unlock(context->audio_mutex); + + return realsize; +} + + +#define MY_BUF_LEN 1024 * 32 +#define MY_BLOCK_SIZE MY_BUF_LEN +static void *SWITCH_THREAD_FUNC stream_thread(switch_thread_t *thread, void *obj) +{ + CURL *curl_handle = NULL; + shout_context_t *context = (shout_context_t *) obj; + + curl_easy_setopt(curl_handle, CURLOPT_URL, context->stream_url); + curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, stream_callback); + curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)context); + curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "FreeSWITCH(mod_shout)/1.0"); + curl_easy_perform(curl_handle); + curl_easy_cleanup(curl_handle); + + return NULL; +} + +static void launch_stream_thread(shout_context_t *context) +{ + switch_thread_t *thread; + switch_threadattr_t *thd_attr = NULL; + + switch_threadattr_create(&thd_attr, context->memory_pool); + switch_threadattr_detach_set(thd_attr, 1); + switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE); + switch_thread_create(&thread, thd_attr, stream_thread, context, context->memory_pool); +} + static switch_status_t shout_file_open(switch_file_handle_t *handle, char *path) { shout_context_t *context; @@ -147,16 +209,6 @@ char *username, *password; char *err = NULL; - if (switch_test_flag(handle, SWITCH_FILE_FLAG_READ)) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Read not currently supported.\n"); - return SWITCH_STATUS_GENERR; - } - - if (!switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Only write is supported.\n"); - return SWITCH_STATUS_GENERR; - } - if ((context = switch_core_alloc(handle->memory_pool, sizeof(*context))) == 0) { return SWITCH_STATUS_MEMERR; } @@ -171,6 +223,8 @@ goto error; } + context->memory_pool = handle->memory_pool; + lame_set_num_channels(context->gfp, handle->channels); lame_set_in_samplerate(context->gfp, handle->samplerate); lame_set_brate(context->gfp, 24); @@ -185,73 +239,85 @@ lame_init_params(context->gfp); lame_print_config(context->gfp); - username = switch_core_strdup(handle->memory_pool, path); - if (!(password = strchr(username, ':'))) { - err = "invalid url"; - goto error; - } - *password++ = '\0'; - - if (!(host = strchr(password, '@'))) { - err = "invalid url"; - goto error; - } - *host++ = '\0'; + if (switch_test_flag(handle, SWITCH_FILE_FLAG_READ)) { + if (switch_buffer_create_dynamic(&context->audio_buffer, MY_BLOCK_SIZE, MY_BUF_LEN, 0) != SWITCH_STATUS_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Memory Error!\n"); + goto error; + } + switch_mutex_init(&context->audio_mutex, SWITCH_MUTEX_NESTED, context->memory_pool); + InitMP3(&context->mp, OUTSCALE); + context->stream_url = switch_core_sprintf(context->memory_pool, "http://%s", path); + launch_stream_thread(context); + } else if (!switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) { + username = switch_core_strdup(handle->memory_pool, path); + if (!(password = strchr(username, ':'))) { + err = "invalid url"; + goto error; + } + *password++ = '\0'; + + if (!(host = strchr(password, '@'))) { + err = "invalid url"; + goto error; + } + *host++ = '\0'; - if ((file = strchr(host, '/'))) { - *file++ = '\0'; - } else { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid URL: %s\n", path); - } + if ((file = strchr(host, '/'))) { + *file++ = '\0'; + } else { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid URL: %s\n", path); + goto error; + } - if (shout_set_host(context->shout, host) != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting hostname: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_host(context->shout, host) != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting hostname: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_set_protocol(context->shout, SHOUT_PROTOCOL_HTTP) != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting protocol: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_protocol(context->shout, SHOUT_PROTOCOL_HTTP) != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting protocol: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_set_port(context->shout, 8000) != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting port: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_port(context->shout, 8000) != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting port: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_set_password(context->shout, password) != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting password: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_password(context->shout, password) != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting password: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_set_mount(context->shout, file) != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting mount: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_mount(context->shout, file) != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting mount: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_set_user(context->shout, username) != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting user: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_user(context->shout, username) != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting user: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_set_url(context->shout, "mod_shout") != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting name: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_url(context->shout, "mod_shout") != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting name: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_set_audio_info(context->shout, "bitrate", "24000") != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting user: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_audio_info(context->shout, "bitrate", "24000") != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting user: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_set_format(context->shout, SHOUT_FORMAT_MP3) != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting user: %s\n", shout_get_error(context->shout)); - goto error; - } + if (shout_set_format(context->shout, SHOUT_FORMAT_MP3) != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting user: %s\n", shout_get_error(context->shout)); + goto error; + } - if (shout_open(context->shout) != SHOUTERR_SUCCESS) { - switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error opening stream: %s\n", shout_get_error(context->shout)); - goto error; + if (shout_open(context->shout) != SHOUTERR_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error opening stream: %s\n", shout_get_error(context->shout)); + goto error; + } } handle->private_info = context; @@ -279,7 +345,7 @@ static switch_status_t shout_file_seek(switch_file_handle_t *handle, unsigned int *cur_sample, int64_t samples, int whence) { - shout_context_t *context = handle->private_info; + //shout_context_t *context = handle->private_info; return SWITCH_STATUS_FALSE; @@ -288,6 +354,11 @@ static switch_status_t shout_file_read(switch_file_handle_t *handle, void *data, size_t *len) { shout_context_t *context = handle->private_info; + size_t bytes = *len; + + switch_mutex_lock(context->audio_mutex); + *len = switch_buffer_read(context->audio_buffer, data, bytes); + switch_mutex_unlock(context->audio_mutex); return SWITCH_STATUS_FALSE; } @@ -378,6 +449,8 @@ supported_formats[0] = "shout"; shout_file_interface.extens = supported_formats; + curl_global_init(CURL_GLOBAL_ALL); + /* connect my internal structure to the blank pointer passed to me */ *module_interface = &shout_module_interface; @@ -388,6 +461,11 @@ } +SWITCH_MOD_DECLARE(switch_status_t) switch_module_shutdown(void) +{ + curl_global_cleanup(); + return SWITCH_STATUS_SUCCESS; +} /* For Emacs: * Local Variables: Added: freeswitch/trunk/src/mod/formats/mod_shout/mpg123.h ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/mpg123.h Mon Mar 12 22:02:28 2007 @@ -0,0 +1,132 @@ +#include <stdio.h> +#include <string.h> +#include <signal.h> + +#ifndef WIN32 +#include <sys/signal.h> +#include <unistd.h> +#endif + +#include <math.h> + +#ifdef _WIN32 +# undef WIN32 +# define WIN32 + +# define M_PI 3.14159265358979323846 +# define M_SQRT2 1.41421356237309504880 +# define REAL_IS_FLOAT +# define NEW_DCT9 + +# define random rand +# define srandom srand + +#endif + +#ifdef REAL_IS_FLOAT +# define real float +#elif defined(REAL_IS_LONG_DOUBLE) +# define real long double +#else +# define real double +#endif + +#ifdef __GNUC__ +#define INLINE inline +#else +#define INLINE +#endif + +/* AUDIOBUFSIZE = n*64 with n=1,2,3 ... */ +#define AUDIOBUFSIZE 16384 + +#define FALSE 0 +#define TRUE 1 + +#define SBLIMIT 32 +#define SSLIMIT 18 + +#define MPG_MD_STEREO 0 +#define MPG_MD_JOINT_STEREO 1 +#define MPG_MD_DUAL_CHANNEL 2 +#define MPG_MD_MONO 3 + +#define MAXFRAMESIZE 1792 + + +/* Pre Shift fo 16 to 8 bit converter table */ +#define AUSHIFT (3) + +struct frame { + int stereo; + int jsbound; + int single; + int lsf; + int mpeg25; + int header_change; + int lay; + int error_protection; + int bitrate_index; + int sampling_frequency; + int padding; + int extension; + int mode; + int mode_ext; + int copyright; + int original; + int emphasis; + int framesize; /* computed framesize */ +}; + +struct parameter { + int quiet; /* shut up! */ + int tryresync; /* resync stream after error */ + int verbose; /* verbose level */ + int checkrange; +}; + +extern int decode_header(struct frame *fr,unsigned long newhead); + + + +struct gr_info_s { + int scfsi; + unsigned part2_3_length; + unsigned big_values; + unsigned scalefac_compress; + unsigned block_type; + unsigned mixed_block_flag; + unsigned table_select[3]; + unsigned subblock_gain[3]; + unsigned maxband[3]; + unsigned maxbandl; + unsigned maxb; + unsigned region1start; + unsigned region2start; + unsigned preflag; + unsigned scalefac_scale; + unsigned count1table_select; + real *full_gain[3]; + real *pow2gain; +}; + +struct III_sideinfo +{ + unsigned main_data_begin; + unsigned private_bits; + struct { + struct gr_info_s gr[2]; + } ch[2]; +}; + +struct pcm_workingsample +{ + int bitindex; + unsigned char *wordpointer; +}; + + +extern long freqs[9]; +extern struct parameter param; +extern real *pnts[5]; + Added: freeswitch/trunk/src/mod/formats/mod_shout/mpglib.h ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/mpglib.h Mon Mar 12 22:02:28 2007 @@ -0,0 +1,75 @@ + +struct buf { + unsigned char *pnt; + long size; + long pos; + struct buf *next; + struct buf *prev; +}; + +struct framebuf { + struct buf *buf; + long pos; + struct frame *next; + struct frame *prev; +}; + +struct mpstr { + struct buf *head,*tail; + int bsize; + int framesize; + int fsizeold; + struct frame fr; + unsigned char bsspace[2][MAXFRAMESIZE+512]; /* MAXFRAMESIZE */ + real hybrid_block[2][2][SBLIMIT*SSLIMIT]; + int hybrid_blc[2]; + unsigned long header; + int bsnum; + real synth_buffs[2][2][0x110]; + int synth_bo; + long outscale; /* volume control default value 32768 */ + long outsamplerate; /* raw output rate default same as mp3 sample rate*/ + struct pcm_workingsample worksample; /* keep the state of the working sample for threads */ + int initmp3; /* flag for first initialisation */ + int longLimit[9][23]; /*sample limits re setting volume */ + int shortLimit[9][14]; + real decwin[512+32]; /* scale table */ + + }; + +#define BOOL int + +#define MP3_ERR -1 +#define MP3_OK 0 +#define MP3_NEED_MORE 1 + + +void InitMP3Constants(void); +BOOL InitMP3(struct mpstr *mp, long outscale); +int decodeMP3(struct mpstr *mp,char *inmemory,int inmemsize, + char *outmemory,int outmemsize,int *done); +void ExitMP3(struct mpstr *mp); + +extern int synth_ntom_set_step(long,long); +extern int synth_ntom(struct mpstr *mp, real *bandPtr,int channel,unsigned char *out,int *pnt); +extern int synth_ntom_mono (struct mpstr *mp, real *bandPtr,unsigned char *samples,int *pnt); +extern int synth_ntom_8bit (real *,int,unsigned char *,int *); +extern int synth_ntom_mono2stereo (real *,unsigned char *,int *); +extern int synth_ntom_8bit_mono (real *,unsigned char *,int *); +extern int synth_ntom_8bit_mono2stereo (real *,unsigned char *,int *); + +extern void init_layer3_sample_limits(struct mpstr *mp, int down_sample_sblimit); +extern void init_layer3_const(void); +extern int do_layer3(struct mpstr *mp,unsigned char *,int *); + +extern void make_decode_tables_scale(struct mpstr *mp, long scaleval); +extern void make_decode_tables_const(void); +extern void make_conv16to8_table(int); + +extern void dct64(real *,real *,real *); + +extern unsigned int get1bit(struct mpstr *mp); +extern unsigned int getbits(struct mpstr *mp, int); +extern unsigned int getbits_fast(struct mpstr *mp, int); +extern int set_pointer(struct mpstr *mp, long backstep); + Added: freeswitch/trunk/src/mod/formats/mod_shout/tabinit.c ============================================================================== --- (empty file) +++ freeswitch/trunk/src/mod/formats/mod_shout/tabinit.c Mon Mar 12 22:02:28 2007 @@ -0,0 +1,81 @@ + +#include <stdlib.h> + +#include "mpg123.h" +#include "mpglib.h" + +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_const(void) +{ + int i,k,kr,divv; + real *costab; + + for(i=0;i<5;i++) + { + kr=0x10>>i; divv=0x40>>i; + costab = pnts[i]; + for(k=0;k<kr;k++) + costab[k] = 1.0 / (2.0 * cos(M_PI * ((double) k * 2.0 + 1.0) / (double) divv)); + } + +} + +void make_decode_tables_scale(struct mpstr *mp, long scaleval) +{ + int i,j; + real *table; + + table = mp->decwin; + scaleval = -scaleval; + for(i=0,j=0;i<256;i++,j++,table+=32) + { + if(table < (mp->decwin)+512+16) + table[16] = table[0] = (double) intwinbase[j] / 65536.0 * (double) scaleval; + if(i % 32 == 31) + table -= 1023; + if(i % 64 == 63) + scaleval = - scaleval; + } + + for( /* i=256 */ ;i<512;i++,j--,table+=32) + { + if(table < (mp->decwin)+512+16) + table[16] = table[0] = (double) intwinbase[j] / 65536.0 * (double) scaleval; + if(i % 32 == 31) + table -= 1023; + if(i % 64 == 63) + scaleval = - scaleval; + } +} + +