mirror of https://github.com/mpv-player/mpv
126 lines
2.9 KiB
C
126 lines
2.9 KiB
C
|
/*
|
||
|
|
* mpg123 defines
|
||
|
|
* used source: musicout.h from mpegaudio package
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "../config.h"
|
||
|
|
|
||
|
|
# define M_PI 3.14159265358979323846
|
||
|
|
# define M_SQRT2 1.41421356237309504880
|
||
|
|
# define REAL_IS_FLOAT
|
||
|
|
# define NEW_DCT9
|
||
|
|
|
||
|
|
#undef MPG123_REMOTE /* Get rid of this stuff for Win32 */
|
||
|
|
|
||
|
|
/*
|
||
|
|
# define real float
|
||
|
|
# define real long double
|
||
|
|
# define real double
|
||
|
|
#include "audio.h"
|
||
|
|
|
||
|
|
// #define AUDIOBUFSIZE 4096
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define FALSE 0
|
||
|
|
#define TRUE 1
|
||
|
|
|
||
|
|
#define MAX_NAME_SIZE 81
|
||
|
|
#define SBLIMIT 32
|
||
|
|
#define SCALE_BLOCK 12
|
||
|
|
#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 MAXOUTBURST 32768 */
|
||
|
|
|
||
|
|
/* Pre Shift fo 16 to 8 bit converter table */
|
||
|
|
#define AUSHIFT (3)
|
||
|
|
|
||
|
|
struct al_table
|
||
|
|
{
|
||
|
|
short bits;
|
||
|
|
short d;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct frame {
|
||
|
|
struct al_table *alloc;
|
||
|
|
int (*synth)(real *,int,unsigned char *,int *);
|
||
|
|
int (*synth_mono)(real *,unsigned char *,int *);
|
||
|
|
int stereo;
|
||
|
|
int jsbound;
|
||
|
|
int single;
|
||
|
|
int II_sblimit;
|
||
|
|
int down_sample_sblimit;
|
||
|
|
int lsf;
|
||
|
|
int mpeg25;
|
||
|
|
int down_sample;
|
||
|
|
int header_change;
|
||
|
|
int lay;
|
||
|
|
int error_protection;
|
||
|
|
int bitrate_index;
|
||
|
|
long sampling_frequency;
|
||
|
|
int padding;
|
||
|
|
int extension;
|
||
|
|
int mode;
|
||
|
|
int mode_ext;
|
||
|
|
int copyright;
|
||
|
|
int original;
|
||
|
|
int emphasis;
|
||
|
|
long framesize; /* computed framesize */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
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;
|
||
|
|
int full_gain[3];
|
||
|
|
int pow2gain;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct III_sideinfo
|
||
|
|
{
|
||
|
|
unsigned main_data_begin;
|
||
|
|
unsigned private_bits;
|
||
|
|
struct {
|
||
|
|
struct gr_info_s gr[2];
|
||
|
|
} ch[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
static long freqs[9];
|
||
|
|
#ifdef HAVE_3DNOW
|
||
|
|
real decwin[2*(512+32)];
|
||
|
|
#else
|
||
|
|
real decwin[512+32];
|
||
|
|
#endif
|
||
|
|
real *pnts[];
|
||
|
|
|
||
|
|
static int do_layer2(struct frame *fr,int single);
|
||
|
|
static int do_layer3(struct frame *fr,int single);
|
||
|
|
static int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt);
|
||
|
|
|
||
|
|
extern int synth_1to1_pent( real *,int,unsigned char * );
|
||
|
|
extern void dct64(real *a,real *b,real *c);
|
||
|
|
|
||
|
|
#ifdef HAVE_3DNOW
|
||
|
|
extern void dct64_3dnow( real *,real *, real * );
|
||
|
|
extern void dct36_3dnow(real *,real *,real *,real *,real *);
|
||
|
|
extern int synth_1to1_3dnow( real *,int,unsigned char * );
|
||
|
|
#endif
|