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Diffstat (limited to 'thirdparties/android/include/ilbc/iLBC_define.h')
| -rw-r--r-- | thirdparties/android/include/ilbc/iLBC_define.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/thirdparties/android/include/ilbc/iLBC_define.h b/thirdparties/android/include/ilbc/iLBC_define.h new file mode 100644 index 0000000..f6a863d --- /dev/null +++ b/thirdparties/android/include/ilbc/iLBC_define.h @@ -0,0 +1,220 @@ + /******************************************************************
+
+ iLBC Speech Coder ANSI-C Source Code
+
+ iLBC_define.h
+
+ Copyright (C) The Internet Society (2004).
+ All Rights Reserved.
+
+ ******************************************************************/
+ #include <string.h>
+
+ #ifndef __iLBC_ILBCDEFINE_H
+ #define __iLBC_ILBCDEFINE_H
+
+ /* general codec settings */
+
+ #define FS (float)8000.0
+ #define BLOCKL_20MS 160
+ #define BLOCKL_30MS 240
+ #define BLOCKL_MAX 240
+ #define NSUB_20MS 4
+ #define NSUB_30MS 6
+ #define NSUB_MAX 6
+ #define NASUB_20MS 2
+
+
+
+
+
+
+ #define NASUB_30MS 4
+ #define NASUB_MAX 4
+ #define SUBL 40
+ #define STATE_LEN 80
+ #define STATE_SHORT_LEN_30MS 58
+ #define STATE_SHORT_LEN_20MS 57
+
+ /* LPC settings */
+
+ #define LPC_FILTERORDER 10
+ #define LPC_CHIRP_SYNTDENUM (float)0.9025
+ #define LPC_CHIRP_WEIGHTDENUM (float)0.4222
+ #define LPC_LOOKBACK 60
+ #define LPC_N_20MS 1
+ #define LPC_N_30MS 2
+ #define LPC_N_MAX 2
+ #define LPC_ASYMDIFF 20
+ #define LPC_BW (float)60.0
+ #define LPC_WN (float)1.0001
+ #define LSF_NSPLIT 3
+ #define LSF_NUMBER_OF_STEPS 4
+ #define LPC_HALFORDER (LPC_FILTERORDER/2)
+
+ /* cb settings */
+
+ #define CB_NSTAGES 3
+ #define CB_EXPAND 2
+ #define CB_MEML 147
+ #define CB_FILTERLEN 2*4
+ #define CB_HALFFILTERLEN 4
+ #define CB_RESRANGE 34
+ #define CB_MAXGAIN (float)1.3
+
+ /* enhancer */
+
+ #define ENH_BLOCKL 80 /* block length */
+ #define ENH_BLOCKL_HALF (ENH_BLOCKL/2)
+ #define ENH_HL 3 /* 2*ENH_HL+1 is number blocks
+ in said second sequence */
+ #define ENH_SLOP 2 /* max difference estimated and
+ correct pitch period */
+ #define ENH_PLOCSL 20 /* pitch-estimates and pitch-
+ locations buffer length */
+ #define ENH_OVERHANG 2
+ #define ENH_UPS0 4 /* upsampling rate */
+ #define ENH_FL0 3 /* 2*FLO+1 is the length of
+ each filter */
+ #define ENH_VECTL (ENH_BLOCKL+2*ENH_FL0)
+
+
+
+
+
+
+ #define ENH_CORRDIM (2*ENH_SLOP+1)
+ #define ENH_NBLOCKS (BLOCKL_MAX/ENH_BLOCKL)
+ #define ENH_NBLOCKS_EXTRA 5
+ #define ENH_NBLOCKS_TOT 8 /* ENH_NBLOCKS +
+ ENH_NBLOCKS_EXTRA */
+ #define ENH_BUFL (ENH_NBLOCKS_TOT)*ENH_BLOCKL
+ #define ENH_ALPHA0 (float)0.05
+
+ /* Down sampling */
+
+ #define FILTERORDER_DS 7
+ #define DELAY_DS 3
+ #define FACTOR_DS 2
+
+ /* bit stream defs */
+
+ #define NO_OF_BYTES_20MS 38
+ #define NO_OF_BYTES_30MS 50
+ #define NO_OF_WORDS_20MS 19
+ #define NO_OF_WORDS_30MS 25
+ #define STATE_BITS 3
+ #define BYTE_LEN 8
+ #define ULP_CLASSES 3
+
+ /* help parameters */
+
+ #define FLOAT_MAX (float)1.0e37
+ #define EPS (float)2.220446049250313e-016
+ #define PI (float)3.14159265358979323846
+ #define MIN_SAMPLE -32768
+ #define MAX_SAMPLE 32767
+ #define TWO_PI (float)6.283185307
+ #define PI2 (float)0.159154943
+
+ /* type definition encoder instance */
+ typedef struct iLBC_ULP_Inst_t_ {
+ int lsf_bits[6][ULP_CLASSES+2];
+ int start_bits[ULP_CLASSES+2];
+ int startfirst_bits[ULP_CLASSES+2];
+ int scale_bits[ULP_CLASSES+2];
+ int state_bits[ULP_CLASSES+2];
+ int extra_cb_index[CB_NSTAGES][ULP_CLASSES+2];
+ int extra_cb_gain[CB_NSTAGES][ULP_CLASSES+2];
+ int cb_index[NSUB_MAX][CB_NSTAGES][ULP_CLASSES+2];
+ int cb_gain[NSUB_MAX][CB_NSTAGES][ULP_CLASSES+2];
+ } iLBC_ULP_Inst_t;
+
+ /* type definition encoder instance */
+
+
+
+
+
+
+ typedef struct iLBC_Enc_Inst_t_ {
+
+ /* flag for frame size mode */
+ int mode;
+
+ /* basic parameters for different frame sizes */
+ int blockl;
+ int nsub;
+ int nasub;
+ int no_of_bytes, no_of_words;
+ int lpc_n;
+ int state_short_len;
+ const iLBC_ULP_Inst_t *ULP_inst;
+
+ /* analysis filter state */
+ float anaMem[LPC_FILTERORDER];
+
+ /* old lsf parameters for interpolation */
+ float lsfold[LPC_FILTERORDER];
+ float lsfdeqold[LPC_FILTERORDER];
+
+ /* signal buffer for LP analysis */
+ float lpc_buffer[LPC_LOOKBACK + BLOCKL_MAX];
+
+ /* state of input HP filter */
+ float hpimem[4];
+
+ } iLBC_Enc_Inst_t;
+
+ /* type definition decoder instance */
+ typedef struct iLBC_Dec_Inst_t_ {
+
+ /* flag for frame size mode */
+ int mode;
+
+ /* basic parameters for different frame sizes */
+ int blockl;
+ int nsub;
+ int nasub;
+ int no_of_bytes, no_of_words;
+ int lpc_n;
+ int state_short_len;
+ const iLBC_ULP_Inst_t *ULP_inst;
+
+ /* synthesis filter state */
+ float syntMem[LPC_FILTERORDER];
+
+ /* old LSF for interpolation */
+
+
+
+
+
+
+ float lsfdeqold[LPC_FILTERORDER];
+
+ /* pitch lag estimated in enhancer and used in PLC */
+ int last_lag;
+
+ /* PLC state information */
+ int prevLag, consPLICount, prevPLI, prev_enh_pl;
+ float prevLpc[LPC_FILTERORDER+1];
+ float prevResidual[NSUB_MAX*SUBL];
+ float per;
+ unsigned long seed;
+
+ /* previous synthesis filter parameters */
+ float old_syntdenum[(LPC_FILTERORDER + 1)*NSUB_MAX];
+
+ /* state of output HP filter */
+ float hpomem[4];
+
+ /* enhancer state information */
+ int use_enhancer;
+ float enh_buf[ENH_BUFL];
+ float enh_period[ENH_NBLOCKS_TOT];
+
+ } iLBC_Dec_Inst_t;
+
+ #endif
+
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