diff options
Diffstat (limited to 'addons/mp3/common.c')
-rw-r--r-- | addons/mp3/common.c | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/addons/mp3/common.c b/addons/mp3/common.c deleted file mode 100644 index 9a6fd8c13..000000000 --- a/addons/mp3/common.c +++ /dev/null @@ -1,267 +0,0 @@ -#include "asterisk.h" -#include "asterisk/logger.h" - -#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) { - ast_log(LOG_WARNING,"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) - { - ast_log(LOG_WARNING,"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 - ast_log(LOG_WARNING,"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 - ast_log(LOG_WARNING,"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: - ast_log(LOG_WARNING,"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" }; - - ast_log(LOG_WARNING,"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); - ast_log(LOG_WARNING,"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); - ast_log(LOG_WARNING,"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" }; - - ast_log(LOG_WARNING,"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; -} - - - |