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-rw-r--r--addons/mp3/interface.c323
1 files changed, 0 insertions, 323 deletions
diff --git a/addons/mp3/interface.c b/addons/mp3/interface.c
deleted file mode 100644
index a71d15df5..000000000
--- a/addons/mp3/interface.c
+++ /dev/null
@@ -1,323 +0,0 @@
-#include "asterisk.h"
-#include "asterisk/logger.h"
-
-#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) {
- ast_log(LOG_WARNING,"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 */
- ast_log(LOG_WARNING,"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) {
- ast_log(LOG_WARNING,"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;
-
- ast_log(LOG_WARNING,"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) {
- ast_log(LOG_WARNING,"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) {
- ast_log(LOG_WARNING,"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;
-}
-
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 00:14:33 +0000