Subversion Repositories Kolibri OS

Rev

Rev 1905 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1905 Rev 3960
Line 1... Line 1...
1 
/*
 1 
/*
2 
	layer1.c: the layer 1 decoder
 2 
	layer1.c: the layer 1 decoder
Line 3... Line 3...
3 
 
 3 
 
4 
	copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1
 4 
	copyright 1995-2009 by the mpg123 project - free software under the terms of the LGPL 2.1
5 
	see COPYING and AUTHORS files in distribution or http://mpg123.org
 5 
	see COPYING and AUTHORS files in distribution or http://mpg123.org
Line 6... Line 6...
6 
	initially written by Michael Hipp
 6 
	initially written by Michael Hipp
7 
 
 7 
 
Line 8... Line 8...
8 
	may have a few bugs after last optimization ...
8 
	may have a few bugs after last optimization ...
9 
*/
 9 
*/
Line 10... Line 10...
10 
 
 10 
 
11 
#include "mpg123lib_intern.h"
 11 
#include "mpg123lib_intern.h"
12 
#include "getbits.h"
 12 
#include "getbits.h"
13 
 
 13 
 
Line 14... Line 14...
14 
void I_step_one(unsigned int balloc[], unsigned int scale_index[2][SBLIMIT],mpg123_handle *fr)
 14 
static void I_step_one(unsigned int balloc[], unsigned int scale_index[2][SBLIMIT],mpg123_handle *fr)
Line 53... Line 53...
53 
		if ((*ba++))
 53 
		if ((*ba++))
54 
		*sca++ = getbits(fr, 6);
 54 
		*sca++ = getbits(fr, 6);
55 
	}
 55 
	}
56 
}
 56 
}
Line 57... Line 57...
57 
 
 57 
 
58 
void I_step_two(real fraction[2][SBLIMIT],unsigned int balloc[2*SBLIMIT], unsigned int scale_index[2][SBLIMIT],mpg123_handle *fr)
 58 
static void I_step_two(real fraction[2][SBLIMIT],unsigned int balloc[2*SBLIMIT], unsigned int scale_index[2][SBLIMIT],mpg123_handle *fr)
59 
{
 59 
{
60 
	int i,n;
 60 
	int i,n;
61 
	int smpb[2*SBLIMIT]; /* values: 0-65535 */
 61 
	int smpb[2*SBLIMIT]; /* values: 0-65535 */
62 
	int *sample;
 62 
	int *sample;
Line 127... Line 127...
127 
{
 127 
{
128 
	int clip=0;
 128 
	int clip=0;
129 
	int i,stereo = fr->stereo;
 129 
	int i,stereo = fr->stereo;
130 
	unsigned int balloc[2*SBLIMIT];
 130 
	unsigned int balloc[2*SBLIMIT];
131 
	unsigned int scale_index[2][SBLIMIT];
 131 
	unsigned int scale_index[2][SBLIMIT];
132 
	ALIGNED(16) real fraction[2][SBLIMIT];
 132 
	real (*fraction)[SBLIMIT] = fr->layer1.fraction; /* fraction[2][SBLIMIT] */
133 
	int single = fr->single;
 133 
	int single = fr->single;
Line 134... Line 134...
134 
 
 134 
 
Line 135... Line 135...
135 
	fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? (fr->mode_ext<<2)+4 : 32;
 135 
	fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? (fr->mode_ext<<2)+4 : 32;