Mercurial > SDL_sound_CoreAudio
annotate decoders/mpglib/mpg123_sdlsound.h @ 279:52b9f37998db
Removed global state variable; should be thread safe now.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Thu, 14 Mar 2002 16:38:59 +0000 |
| parents | 9b6e82f7c853 |
| children | 1e1724673420 |
| rev | line source |
|---|---|
| 261 | 1 #include <stdio.h> |
| 2 #include <string.h> | |
| 3 #include <signal.h> | |
| 4 | |
| 5 #ifndef WIN32 | |
| 6 #include <sys/signal.h> | |
| 7 #include <unistd.h> | |
| 8 #endif | |
| 9 | |
| 10 #include <math.h> | |
| 11 | |
| 12 #ifdef _WIN32 | |
| 13 # undef WIN32 | |
| 14 # define WIN32 | |
| 15 | |
| 16 # define M_PI 3.14159265358979323846 | |
| 17 # define M_SQRT2 1.41421356237309504880 | |
| 18 # define REAL_IS_FLOAT | |
| 19 # define NEW_DCT9 | |
| 20 | |
| 21 # define random rand | |
| 22 # define srandom srand | |
| 23 | |
| 24 #endif | |
| 25 | |
| 26 #ifdef REAL_IS_FLOAT | |
| 27 # define real float | |
| 28 #elif defined(REAL_IS_LONG_DOUBLE) | |
| 29 # define real long double | |
| 30 #else | |
| 31 # define real double | |
| 32 #endif | |
| 33 | |
| 34 #ifdef __GNUC__ | |
| 35 #define INLINE inline | |
| 36 #else | |
| 37 #define INLINE | |
| 38 #endif | |
| 39 | |
| 40 /* AUDIOBUFSIZE = n*64 with n=1,2,3 ... */ | |
| 41 #define AUDIOBUFSIZE 16384 | |
| 42 | |
| 43 #ifndef FALSE | |
| 44 #define FALSE 0 | |
| 45 #endif | |
| 46 #ifndef FALSE | |
| 47 #define TRUE 1 | |
| 48 #endif | |
| 49 | |
| 50 #define SBLIMIT 32 | |
| 51 #define SSLIMIT 18 | |
| 52 | |
| 53 #define SCALE_BLOCK 12 | |
| 54 | |
| 55 | |
| 56 #define MPG_MD_STEREO 0 | |
| 57 #define MPG_MD_JOINT_STEREO 1 | |
| 58 #define MPG_MD_DUAL_CHANNEL 2 | |
| 59 #define MPG_MD_MONO 3 | |
| 60 | |
| 61 #define MAXFRAMESIZE 1792 | |
| 62 | |
| 63 | |
| 64 /* Pre Shift fo 16 to 8 bit converter table */ | |
| 65 #define AUSHIFT (3) | |
| 66 | |
| 67 struct frame { | |
| 68 int stereo; | |
| 69 int jsbound; | |
| 70 int single; | |
| 71 int lsf; | |
| 72 int mpeg25; | |
| 73 int header_change; | |
| 74 int lay; | |
| 75 int error_protection; | |
| 76 int bitrate_index; | |
| 77 int sampling_frequency; | |
| 78 int padding; | |
| 79 int extension; | |
| 80 int mode; | |
| 81 int mode_ext; | |
| 82 int copyright; | |
| 83 int original; | |
| 84 int emphasis; | |
| 85 int framesize; /* computed framesize */ | |
| 86 | |
| 87 /* layer2 stuff */ | |
| 88 int II_sblimit; | |
| 89 void *alloc; | |
| 90 }; | |
| 91 | |
| 92 struct parameter { | |
| 93 int quiet; /* shut up! */ | |
| 94 int tryresync; /* resync stream after error */ | |
| 95 int verbose; /* verbose level */ | |
| 96 int checkrange; | |
| 97 }; | |
| 98 | |
|
279
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
99 struct mpstr; /* forward declaration. */ |
|
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
100 |
| 261 | 101 extern unsigned int get1bit(void); |
| 102 extern unsigned int getbits(int); | |
| 103 extern unsigned int getbits_fast(int); | |
|
279
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
104 extern int set_pointer(long,struct mpstr *); |
| 261 | 105 |
| 106 extern unsigned char *wordpointer; | |
| 107 extern int bitindex; | |
| 108 | |
| 109 extern void make_decode_tables(long scaleval); | |
|
279
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
110 extern int do_layer3(struct frame *fr,unsigned char *,int *,struct mpstr *); |
|
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
111 extern int do_layer2(struct frame *fr,unsigned char *,int *,struct mpstr *); |
|
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
112 extern int do_layer1(struct frame *fr,unsigned char *,int *,struct mpstr *); |
| 261 | 113 extern int decode_header(struct frame *fr,unsigned long newhead); |
| 114 | |
| 115 | |
| 116 | |
| 117 struct gr_info_s { | |
| 118 int scfsi; | |
| 119 unsigned part2_3_length; | |
| 120 unsigned big_values; | |
| 121 unsigned scalefac_compress; | |
| 122 unsigned block_type; | |
| 123 unsigned mixed_block_flag; | |
| 124 unsigned table_select[3]; | |
| 125 unsigned subblock_gain[3]; | |
| 126 unsigned maxband[3]; | |
| 127 unsigned maxbandl; | |
| 128 unsigned maxb; | |
| 129 unsigned region1start; | |
| 130 unsigned region2start; | |
| 131 unsigned preflag; | |
| 132 unsigned scalefac_scale; | |
| 133 unsigned count1table_select; | |
| 134 real *full_gain[3]; | |
| 135 real *pow2gain; | |
| 136 }; | |
| 137 | |
| 138 struct III_sideinfo | |
| 139 { | |
| 140 unsigned main_data_begin; | |
| 141 unsigned private_bits; | |
| 142 struct { | |
| 143 struct gr_info_s gr[2]; | |
| 144 } ch[2]; | |
| 145 }; | |
| 146 | |
|
279
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
147 |
|
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
148 extern int synth_1to1 (real *,int,unsigned char *,int *,struct mpstr *); |
| 261 | 149 extern int synth_1to1_8bit (real *,int,unsigned char *,int *); |
|
279
52b9f37998db
Removed global state variable; should be thread safe now.
Ryan C. Gordon <icculus@icculus.org>
parents:
261
diff
changeset
|
150 extern int synth_1to1_mono (real *,unsigned char *,int *,struct mpstr *); |
| 261 | 151 extern int synth_1to1_mono2stereo (real *,unsigned char *,int *); |
| 152 extern int synth_1to1_8bit_mono (real *,unsigned char *,int *); | |
| 153 extern int synth_1to1_8bit_mono2stereo (real *,unsigned char *,int *); | |
| 154 | |
| 155 extern int synth_2to1 (real *,int,unsigned char *,int *); | |
| 156 extern int synth_2to1_8bit (real *,int,unsigned char *,int *); | |
| 157 extern int synth_2to1_mono (real *,unsigned char *,int *); | |
| 158 extern int synth_2to1_mono2stereo (real *,unsigned char *,int *); | |
| 159 extern int synth_2to1_8bit_mono (real *,unsigned char *,int *); | |
| 160 extern int synth_2to1_8bit_mono2stereo (real *,unsigned char *,int *); | |
| 161 | |
| 162 extern int synth_4to1 (real *,int,unsigned char *,int *); | |
| 163 extern int synth_4to1_8bit (real *,int,unsigned char *,int *); | |
| 164 extern int synth_4to1_mono (real *,unsigned char *,int *); | |
| 165 extern int synth_4to1_mono2stereo (real *,unsigned char *,int *); | |
| 166 extern int synth_4to1_8bit_mono (real *,unsigned char *,int *); | |
| 167 extern int synth_4to1_8bit_mono2stereo (real *,unsigned char *,int *); | |
| 168 | |
| 169 extern int synth_ntom (real *,int,unsigned char *,int *); | |
| 170 extern int synth_ntom_8bit (real *,int,unsigned char *,int *); | |
| 171 extern int synth_ntom_mono (real *,unsigned char *,int *); | |
| 172 extern int synth_ntom_mono2stereo (real *,unsigned char *,int *); | |
| 173 extern int synth_ntom_8bit_mono (real *,unsigned char *,int *); | |
| 174 extern int synth_ntom_8bit_mono2stereo (real *,unsigned char *,int *); | |
| 175 | |
| 176 extern void rewindNbits(int bits); | |
| 177 extern int hsstell(void); | |
| 178 extern int get_songlen(struct frame *fr,int no); | |
| 179 | |
| 180 extern void init_layer3(int); | |
| 181 extern void init_layer2(void); | |
| 182 extern void make_decode_tables(long scale); | |
| 183 extern void make_conv16to8_table(int); | |
| 184 extern void dct64(real *,real *,real *); | |
| 185 | |
| 186 extern void synth_ntom_set_step(long,long); | |
| 187 | |
| 188 extern unsigned char *conv16to8; | |
| 189 extern long freqs[9]; | |
| 190 extern real muls[27][64]; | |
| 191 extern real decwin[512+32]; | |
| 192 extern real *pnts[5]; | |
| 193 | |
| 194 extern struct parameter param; | |
| 195 | |
| 196 |