diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/inc/acelp.h')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/inc/acelp.h | 406 |
1 files changed, 203 insertions, 203 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/inc/acelp.h b/media/libstagefright/codecs/amrwbenc/inc/acelp.h index 5a1e536..97555d5 100644 --- a/media/libstagefright/codecs/amrwbenc/inc/acelp.h +++ b/media/libstagefright/codecs/amrwbenc/inc/acelp.h @@ -18,7 +18,7 @@ /*--------------------------------------------------------------------------* * ACELP.H * *--------------------------------------------------------------------------* - * Function * + * Function * *--------------------------------------------------------------------------*/ #ifndef __ACELP_H__ #define __ACELP_H__ @@ -33,68 +33,68 @@ Word16 median5(Word16 x[]); void Autocorr( - Word16 x[], /* (i) : Input signal */ - Word16 m, /* (i) : LPC order */ - Word16 r_h[], /* (o) : Autocorrelations (msb) */ - Word16 r_l[] /* (o) : Autocorrelations (lsb) */ - ); + Word16 x[], /* (i) : Input signal */ + Word16 m, /* (i) : LPC order */ + Word16 r_h[], /* (o) : Autocorrelations (msb) */ + Word16 r_l[] /* (o) : Autocorrelations (lsb) */ + ); void Lag_window( - Word16 r_h[], /* (i/o) : Autocorrelations (msb) */ - Word16 r_l[] /* (i/o) : Autocorrelations (lsb) */ - ); + Word16 r_h[], /* (i/o) : Autocorrelations (msb) */ + Word16 r_l[] /* (i/o) : Autocorrelations (lsb) */ + ); void Init_Levinson( - Word16 * mem /* output :static memory (18 words) */ - ); + Word16 * mem /* output :static memory (18 words) */ + ); void Levinson( - Word16 Rh[], /* (i) : Rh[M+1] Vector of autocorrelations (msb) */ - Word16 Rl[], /* (i) : Rl[M+1] Vector of autocorrelations (lsb) */ - Word16 A[], /* (o) Q12 : A[M] LPC coefficients (m = 16) */ - Word16 rc[], /* (o) Q15 : rc[M] Reflection coefficients. */ - Word16 * mem /* (i/o) :static memory (18 words) */ - ); + Word16 Rh[], /* (i) : Rh[M+1] Vector of autocorrelations (msb) */ + Word16 Rl[], /* (i) : Rl[M+1] Vector of autocorrelations (lsb) */ + Word16 A[], /* (o) Q12 : A[M] LPC coefficients (m = 16) */ + Word16 rc[], /* (o) Q15 : rc[M] Reflection coefficients. */ + Word16 * mem /* (i/o) :static memory (18 words) */ + ); void Az_isp( - Word16 a[], /* (i) Q12 : predictor coefficients */ - Word16 isp[], /* (o) Q15 : Immittance spectral pairs */ - Word16 old_isp[] /* (i) : old isp[] (in case not found M roots) */ - ); + Word16 a[], /* (i) Q12 : predictor coefficients */ + Word16 isp[], /* (o) Q15 : Immittance spectral pairs */ + Word16 old_isp[] /* (i) : old isp[] (in case not found M roots) */ + ); void Isp_Az( - Word16 isp[], /* (i) Q15 : Immittance spectral pairs */ - Word16 a[], /* (o) Q12 : predictor coefficients (order = M) */ - Word16 m, - Word16 adaptive_scaling /* (i) 0 : adaptive scaling disabled */ - /* 1 : adaptive scaling enabled */ - ); + Word16 isp[], /* (i) Q15 : Immittance spectral pairs */ + Word16 a[], /* (o) Q12 : predictor coefficients (order = M) */ + Word16 m, + Word16 adaptive_scaling /* (i) 0 : adaptive scaling disabled */ + /* 1 : adaptive scaling enabled */ + ); void Isp_isf( - Word16 isp[], /* (i) Q15 : isp[m] (range: -1<=val<1) */ - Word16 isf[], /* (o) Q15 : isf[m] normalized (range: 0.0<=val<=0.5) */ - Word16 m /* (i) : LPC order */ - ); + Word16 isp[], /* (i) Q15 : isp[m] (range: -1<=val<1) */ + Word16 isf[], /* (o) Q15 : isf[m] normalized (range: 0.0<=val<=0.5) */ + Word16 m /* (i) : LPC order */ + ); void Isf_isp( - Word16 isf[], /* (i) Q15 : isf[m] normalized (range: 0.0<=val<=0.5) */ - Word16 isp[], /* (o) Q15 : isp[m] (range: -1<=val<1) */ - Word16 m /* (i) : LPC order */ - ); + Word16 isf[], /* (i) Q15 : isf[m] normalized (range: 0.0<=val<=0.5) */ + Word16 isp[], /* (o) Q15 : isp[m] (range: -1<=val<1) */ + Word16 m /* (i) : LPC order */ + ); void Int_isp( - Word16 isp_old[], /* input : isps from past frame */ - Word16 isp_new[], /* input : isps from present frame */ - Word16 frac[], /* input : fraction for 3 first subfr (Q15) */ - Word16 Az[] /* output: LP coefficients in 4 subframes */ - ); + Word16 isp_old[], /* input : isps from past frame */ + Word16 isp_new[], /* input : isps from present frame */ + Word16 frac[], /* input : fraction for 3 first subfr (Q15) */ + Word16 Az[] /* output: LP coefficients in 4 subframes */ + ); void Weight_a( - Word16 a[], /* (i) Q12 : a[m+1] LPC coefficients */ - Word16 ap[], /* (o) Q12 : Spectral expanded LPC coefficients */ - Word16 gamma, /* (i) Q15 : Spectral expansion factor. */ - Word16 m /* (i) : LPC order. */ - ); + Word16 a[], /* (i) Q12 : a[m+1] LPC coefficients */ + Word16 ap[], /* (o) Q12 : Spectral expanded LPC coefficients */ + Word16 gamma, /* (i) Q15 : Spectral expansion factor. */ + Word16 m /* (i) : LPC order. */ + ); /*-----------------------------------------------------------------* @@ -102,214 +102,214 @@ void Weight_a( *-----------------------------------------------------------------*/ void Qpisf_2s_46b( - Word16 * isf1, /* (i) Q15 : ISF in the frequency domain (0..0.5) */ - Word16 * isf_q, /* (o) Q15 : quantized ISF (0..0.5) */ - Word16 * past_isfq, /* (io)Q15 : past ISF quantizer */ - Word16 * indice, /* (o) : quantization indices */ - Word16 nb_surv /* (i) : number of survivor (1, 2, 3 or 4) */ - ); + Word16 * isf1, /* (i) Q15 : ISF in the frequency domain (0..0.5) */ + Word16 * isf_q, /* (o) Q15 : quantized ISF (0..0.5) */ + Word16 * past_isfq, /* (io)Q15 : past ISF quantizer */ + Word16 * indice, /* (o) : quantization indices */ + Word16 nb_surv /* (i) : number of survivor (1, 2, 3 or 4) */ + ); void Qpisf_2s_36b( - Word16 * isf1, /* (i) Q15 : ISF in the frequency domain (0..0.5) */ - Word16 * isf_q, /* (o) Q15 : quantized ISF (0..0.5) */ - Word16 * past_isfq, /* (io)Q15 : past ISF quantizer */ - Word16 * indice, /* (o) : quantization indices */ - Word16 nb_surv /* (i) : number of survivor (1, 2, 3 or 4) */ - ); + Word16 * isf1, /* (i) Q15 : ISF in the frequency domain (0..0.5) */ + Word16 * isf_q, /* (o) Q15 : quantized ISF (0..0.5) */ + Word16 * past_isfq, /* (io)Q15 : past ISF quantizer */ + Word16 * indice, /* (o) : quantization indices */ + Word16 nb_surv /* (i) : number of survivor (1, 2, 3 or 4) */ + ); void Dpisf_2s_46b( - Word16 * indice, /* input: quantization indices */ - Word16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */ - Word16 * past_isfq, /* i/0 : past ISF quantizer */ - Word16 * isfold, /* input : past quantized ISF */ - Word16 * isf_buf, /* input : isf buffer */ - Word16 bfi, /* input : Bad frame indicator */ - Word16 enc_dec - ); + Word16 * indice, /* input: quantization indices */ + Word16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */ + Word16 * past_isfq, /* i/0 : past ISF quantizer */ + Word16 * isfold, /* input : past quantized ISF */ + Word16 * isf_buf, /* input : isf buffer */ + Word16 bfi, /* input : Bad frame indicator */ + Word16 enc_dec + ); void Dpisf_2s_36b( - Word16 * indice, /* input: quantization indices */ - Word16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */ - Word16 * past_isfq, /* i/0 : past ISF quantizer */ - Word16 * isfold, /* input : past quantized ISF */ - Word16 * isf_buf, /* input : isf buffer */ - Word16 bfi, /* input : Bad frame indicator */ - Word16 enc_dec - ); + Word16 * indice, /* input: quantization indices */ + Word16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */ + Word16 * past_isfq, /* i/0 : past ISF quantizer */ + Word16 * isfold, /* input : past quantized ISF */ + Word16 * isf_buf, /* input : isf buffer */ + Word16 bfi, /* input : Bad frame indicator */ + Word16 enc_dec + ); void Qisf_ns( - Word16 * isf1, /* input : ISF in the frequency domain (0..0.5) */ - Word16 * isf_q, /* output: quantized ISF */ - Word16 * indice /* output: quantization indices */ - ); + Word16 * isf1, /* input : ISF in the frequency domain (0..0.5) */ + Word16 * isf_q, /* output: quantized ISF */ + Word16 * indice /* output: quantization indices */ + ); void Disf_ns( - Word16 * indice, /* input: quantization indices */ - Word16 * isf_q /* input : ISF in the frequency domain (0..0.5) */ - ); + Word16 * indice, /* input: quantization indices */ + Word16 * isf_q /* input : ISF in the frequency domain (0..0.5) */ + ); Word16 Sub_VQ( /* output: return quantization index */ - Word16 * x, /* input : ISF residual vector */ - Word16 * dico, /* input : quantization codebook */ - Word16 dim, /* input : dimention of vector */ - Word16 dico_size, /* input : size of quantization codebook */ - Word32 * distance /* output: error of quantization */ - ); + Word16 * x, /* input : ISF residual vector */ + Word16 * dico, /* input : quantization codebook */ + Word16 dim, /* input : dimention of vector */ + Word16 dico_size, /* input : size of quantization codebook */ + Word32 * distance /* output: error of quantization */ + ); void Reorder_isf( - Word16 * isf, /* (i/o) Q15: ISF in the frequency domain (0..0.5) */ - Word16 min_dist, /* (i) Q15 : minimum distance to keep */ - Word16 n /* (i) : number of ISF */ - ); + Word16 * isf, /* (i/o) Q15: ISF in the frequency domain (0..0.5) */ + Word16 min_dist, /* (i) Q15 : minimum distance to keep */ + Word16 n /* (i) : number of ISF */ + ); /*-----------------------------------------------------------------* * filter prototypes * *-----------------------------------------------------------------*/ void Init_Decim_12k8( - Word16 mem[] /* output: memory (2*NB_COEF_DOWN) set to zeros */ - ); + Word16 mem[] /* output: memory (2*NB_COEF_DOWN) set to zeros */ + ); void Decim_12k8( - Word16 sig16k[], /* input: signal to downsampling */ - Word16 lg, /* input: length of input */ - Word16 sig12k8[], /* output: decimated signal */ - Word16 mem[] /* in/out: memory (2*NB_COEF_DOWN) */ - ); + Word16 sig16k[], /* input: signal to downsampling */ + Word16 lg, /* input: length of input */ + Word16 sig12k8[], /* output: decimated signal */ + Word16 mem[] /* in/out: memory (2*NB_COEF_DOWN) */ + ); void Init_HP50_12k8(Word16 mem[]); void HP50_12k8( - Word16 signal[], /* input/output signal */ - Word16 lg, /* lenght of signal */ - Word16 mem[] /* filter memory [6] */ - ); + Word16 signal[], /* input/output signal */ + Word16 lg, /* lenght of signal */ + Word16 mem[] /* filter memory [6] */ + ); void Init_HP400_12k8(Word16 mem[]); void HP400_12k8( - Word16 signal[], /* input/output signal */ - Word16 lg, /* lenght of signal */ - Word16 mem[] /* filter memory [6] */ - ); + Word16 signal[], /* input/output signal */ + Word16 lg, /* lenght of signal */ + Word16 mem[] /* filter memory [6] */ + ); void Init_Filt_6k_7k(Word16 mem[]); void Filt_6k_7k( - Word16 signal[], /* input: signal */ - Word16 lg, /* input: length of input */ - Word16 mem[] /* in/out: memory (size=30) */ - ); + Word16 signal[], /* input: signal */ + Word16 lg, /* input: length of input */ + Word16 mem[] /* in/out: memory (size=30) */ + ); void Filt_6k_7k_asm( - Word16 signal[], /* input: signal */ - Word16 lg, /* input: length of input */ - Word16 mem[] /* in/out: memory (size=30) */ - ); + Word16 signal[], /* input: signal */ + Word16 lg, /* input: length of input */ + Word16 mem[] /* in/out: memory (size=30) */ + ); void LP_Decim2( - Word16 x[], /* in/out: signal to process */ - Word16 l, /* input : size of filtering */ - Word16 mem[] /* in/out: memory (size=3) */ - ); + Word16 x[], /* in/out: signal to process */ + Word16 l, /* input : size of filtering */ + Word16 mem[] /* in/out: memory (size=3) */ + ); void Preemph( - Word16 x[], /* (i/o) : input signal overwritten by the output */ - Word16 mu, /* (i) Q15 : preemphasis coefficient */ - Word16 lg, /* (i) : lenght of filtering */ - Word16 * mem /* (i/o) : memory (x[-1]) */ - ); + Word16 x[], /* (i/o) : input signal overwritten by the output */ + Word16 mu, /* (i) Q15 : preemphasis coefficient */ + Word16 lg, /* (i) : lenght of filtering */ + Word16 * mem /* (i/o) : memory (x[-1]) */ + ); void Preemph2( - Word16 x[], /* (i/o) : input signal overwritten by the output */ - Word16 mu, /* (i) Q15 : preemphasis coefficient */ - Word16 lg, /* (i) : lenght of filtering */ - Word16 * mem /* (i/o) : memory (x[-1]) */ - ); + Word16 x[], /* (i/o) : input signal overwritten by the output */ + Word16 mu, /* (i) Q15 : preemphasis coefficient */ + Word16 lg, /* (i) : lenght of filtering */ + Word16 * mem /* (i/o) : memory (x[-1]) */ + ); void Deemph( - Word16 x[], /* (i/o) : input signal overwritten by the output */ - Word16 mu, /* (i) Q15 : deemphasis factor */ - Word16 L, /* (i) : vector size */ - Word16 * mem /* (i/o) : memory (y[-1]) */ - ); + Word16 x[], /* (i/o) : input signal overwritten by the output */ + Word16 mu, /* (i) Q15 : deemphasis factor */ + Word16 L, /* (i) : vector size */ + Word16 * mem /* (i/o) : memory (y[-1]) */ + ); void Deemph2( - Word16 x[], /* (i/o) : input signal overwritten by the output */ - Word16 mu, /* (i) Q15 : deemphasis factor */ - Word16 L, /* (i) : vector size */ - Word16 * mem /* (i/o) : memory (y[-1]) */ - ); + Word16 x[], /* (i/o) : input signal overwritten by the output */ + Word16 mu, /* (i) Q15 : deemphasis factor */ + Word16 L, /* (i) : vector size */ + Word16 * mem /* (i/o) : memory (y[-1]) */ + ); void Deemph_32( - Word16 x_hi[], /* (i) : input signal (bit31..16) */ - Word16 x_lo[], /* (i) : input signal (bit15..4) */ - Word16 y[], /* (o) : output signal (x16) */ - Word16 mu, /* (i) Q15 : deemphasis factor */ - Word16 L, /* (i) : vector size */ - Word16 * mem /* (i/o) : memory (y[-1]) */ - ); + Word16 x_hi[], /* (i) : input signal (bit31..16) */ + Word16 x_lo[], /* (i) : input signal (bit15..4) */ + Word16 y[], /* (o) : output signal (x16) */ + Word16 mu, /* (i) Q15 : deemphasis factor */ + Word16 L, /* (i) : vector size */ + Word16 * mem /* (i/o) : memory (y[-1]) */ + ); void Deemph_32_asm( - Word16 x_hi[], /* (i) : input signal (bit31..16) */ - Word16 x_lo[], /* (i) : input signal (bit15..4) */ - Word16 y[], /* (o) : output signal (x16) */ - Word16 * mem /* (i/o) : memory (y[-1]) */ - ); + Word16 x_hi[], /* (i) : input signal (bit31..16) */ + Word16 x_lo[], /* (i) : input signal (bit15..4) */ + Word16 y[], /* (o) : output signal (x16) */ + Word16 * mem /* (i/o) : memory (y[-1]) */ + ); void Convolve( - Word16 x[], /* (i) : input vector */ - Word16 h[], /* (i) Q15 : impulse response */ - Word16 y[], /* (o) 12 bits: output vector */ - Word16 L /* (i) : vector size */ - ); + Word16 x[], /* (i) : input vector */ + Word16 h[], /* (i) Q15 : impulse response */ + Word16 y[], /* (o) 12 bits: output vector */ + Word16 L /* (i) : vector size */ + ); void Convolve_asm( - Word16 x[], /* (i) : input vector */ - Word16 h[], /* (i) Q15 : impulse response */ - Word16 y[], /* (o) 12 bits: output vector */ - Word16 L /* (i) : vector size */ - ); + Word16 x[], /* (i) : input vector */ + Word16 h[], /* (i) Q15 : impulse response */ + Word16 y[], /* (o) 12 bits: output vector */ + Word16 L /* (i) : vector size */ + ); void Residu( - Word16 a[], /* (i) Q12 : prediction coefficients */ - Word16 x[], /* (i) : speech (values x[-m..-1] are needed */ - Word16 y[], /* (o) : residual signal */ - Word16 lg /* (i) : size of filtering */ - ); + Word16 a[], /* (i) Q12 : prediction coefficients */ + Word16 x[], /* (i) : speech (values x[-m..-1] are needed */ + Word16 y[], /* (o) : residual signal */ + Word16 lg /* (i) : size of filtering */ + ); void Residu_opt( - Word16 a[], /* (i) Q12 : prediction coefficients */ - Word16 x[], /* (i) : speech (values x[-m..-1] are needed */ - Word16 y[], /* (o) : residual signal */ - Word16 lg /* (i) : size of filtering */ - ); + Word16 a[], /* (i) Q12 : prediction coefficients */ + Word16 x[], /* (i) : speech (values x[-m..-1] are needed */ + Word16 y[], /* (o) : residual signal */ + Word16 lg /* (i) : size of filtering */ + ); void Syn_filt( - Word16 a[], /* (i) Q12 : a[m+1] prediction coefficients */ - Word16 x[], /* (i) : input signal */ - Word16 y[], /* (o) : output signal */ - Word16 lg, /* (i) : size of filtering */ - Word16 mem[], /* (i/o) : memory associated with this filtering. */ - Word16 update /* (i) : 0=no update, 1=update of memory. */ - ); + Word16 a[], /* (i) Q12 : a[m+1] prediction coefficients */ + Word16 x[], /* (i) : input signal */ + Word16 y[], /* (o) : output signal */ + Word16 lg, /* (i) : size of filtering */ + Word16 mem[], /* (i/o) : memory associated with this filtering. */ + Word16 update /* (i) : 0=no update, 1=update of memory. */ + ); void Syn_filt_asm( - Word16 a[], /* (i) Q12 : a[m+1] prediction coefficients */ - Word16 x[], /* (i) : input signal */ - Word16 y[], /* (o) : output signal */ - Word16 mem[] /* (i/o) : memory associated with this filtering. */ - ); + Word16 a[], /* (i) Q12 : a[m+1] prediction coefficients */ + Word16 x[], /* (i) : input signal */ + Word16 y[], /* (o) : output signal */ + Word16 mem[] /* (i/o) : memory associated with this filtering. */ + ); void Syn_filt_32( - Word16 a[], /* (i) Q12 : a[m+1] prediction coefficients */ - Word16 m, /* (i) : order of LP filter */ - Word16 exc[], /* (i) Qnew: excitation (exc[i] >> Qnew) */ - Word16 Qnew, /* (i) : exc scaling = 0(min) to 8(max) */ - Word16 sig_hi[], /* (o) /16 : synthesis high */ - Word16 sig_lo[], /* (o) /16 : synthesis low */ - Word16 lg /* (i) : size of filtering */ - ); + Word16 a[], /* (i) Q12 : a[m+1] prediction coefficients */ + Word16 m, /* (i) : order of LP filter */ + Word16 exc[], /* (i) Qnew: excitation (exc[i] >> Qnew) */ + Word16 Qnew, /* (i) : exc scaling = 0(min) to 8(max) */ + Word16 sig_hi[], /* (o) /16 : synthesis high */ + Word16 sig_lo[], /* (o) /16 : synthesis low */ + Word16 lg /* (i) : size of filtering */ + ); void Syn_filt_32_asm( - Word16 a[], /* (i) Q12 : a[m+1] prediction coefficients */ - Word16 m, /* (i) : order of LP filter */ - Word16 exc[], /* (i) Qnew: excitation (exc[i] >> Qnew) */ - Word16 Qnew, /* (i) : exc scaling = 0(min) to 8(max) */ - Word16 sig_hi[], /* (o) /16 : synthesis high */ - Word16 sig_lo[], /* (o) /16 : synthesis low */ - Word16 lg /* (i) : size of filtering */ - ); + Word16 a[], /* (i) Q12 : a[m+1] prediction coefficients */ + Word16 m, /* (i) : order of LP filter */ + Word16 exc[], /* (i) Qnew: excitation (exc[i] >> Qnew) */ + Word16 Qnew, /* (i) : exc scaling = 0(min) to 8(max) */ + Word16 sig_hi[], /* (o) /16 : synthesis high */ + Word16 sig_lo[], /* (o) /16 : synthesis low */ + Word16 lg /* (i) : size of filtering */ + ); /*-----------------------------------------------------------------* * pitch prototypes * *-----------------------------------------------------------------*/ @@ -443,12 +443,12 @@ void ACELP_4t64_fx( Word16 nbbits, /* (i) : 20, 36, 44, 52, 64, 72 or 88 bits */ Word16 ser_size, /* (i) : bit rate */ Word16 _index[] /* (o) : index (20): 5+5+5+5 = 20 bits. */ - /* (o) : index (36): 9+9+9+9 = 36 bits. */ - /* (o) : index (44): 13+9+13+9 = 44 bits. */ - /* (o) : index (52): 13+13+13+13 = 52 bits. */ - /* (o) : index (64): 2+2+2+2+14+14+14+14 = 64 bits. */ - /* (o) : index (72): 10+2+10+2+10+14+10+14 = 72 bits. */ - /* (o) : index (88): 11+11+11+11+11+11+11+11 = 88 bits. */ + /* (o) : index (36): 9+9+9+9 = 36 bits. */ + /* (o) : index (44): 13+9+13+9 = 44 bits. */ + /* (o) : index (52): 13+13+13+13 = 52 bits. */ + /* (o) : index (64): 2+2+2+2+14+14+14+14 = 64 bits. */ + /* (o) : index (72): 10+2+10+2+10+14+10+14 = 72 bits. */ + /* (o) : index (88): 11+11+11+11+11+11+11+11 = 88 bits. */ ); void Pit_shrp( |