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diff --git a/lib/rbcodec/codecs/libopus/celt/celt.c b/lib/rbcodec/codecs/libopus/celt/celt.c index d91b868..df8a10b 100644 --- a/lib/rbcodec/codecs/libopus/celt/celt.c +++ b/lib/rbcodec/codecs/libopus/celt/celt.c @@ -415,6 +415,7 @@ static void compute_mdcts(const CELTMode *mode, int shortBlocks, celt_sig * OPUS } #endif +//AB static opus_val32 s_x[1080] IBSS_ATTR; /* 4320 byte */ /** Compute the IMDCT and apply window for all sub-frames and all channels in a frame */ static void compute_inv_mdcts(const CELTMode *mode, int shortBlocks, celt_sig *X, @@ -425,6 +426,7 @@ static void compute_inv_mdcts(const CELTMode *mode, int shortBlocks, celt_sig *X const int N = mode->shortMdctSize<<LM; const int overlap = OVERLAP(mode); VARDECL(opus_val32, x); +//AB opus_val32 *x = s_x; SAVE_STACK; ALLOC(x, N+overlap, opus_val32); @@ -448,12 +450,16 @@ static void compute_inv_mdcts(const CELTMode *mode, int shortBlocks, celt_sig *X clt_mdct_backward(&mode->mdct, &X[b+c*N2*B], x+N2*b, mode->window, overlap, shortBlocks ? mode->maxLM : mode->maxLM-LM, B); } - for (j=0;j<overlap;j++) - out_mem[c][j] = x[j] + overlap_mem[c][j]; - for (;j<N;j++) - out_mem[c][j] = x[j]; - for (j=0;j<overlap;j++) - overlap_mem[c][j] = x[N+j]; + /* overlap can be divided by 4 */ + for (j=0;j<overlap;j+=4) + { + out_mem[c][j ] = x[j ] + overlap_mem[c][j ]; + out_mem[c][j+1] = x[j+1] + overlap_mem[c][j+1]; + out_mem[c][j+2] = x[j+2] + overlap_mem[c][j+2]; + out_mem[c][j+3] = x[j+3] + overlap_mem[c][j+3]; + } + memcpy(out_mem[c]+overlap, x+overlap, (N-overlap)*sizeof(celt_sig)); + memcpy(overlap_mem[c] , x+N , ( overlap)*sizeof(celt_sig)); } while (++c<C); RESTORE_STACK; } @@ -497,43 +503,63 @@ static void comb_filter(opus_val32 *y, opus_val32 *x, int T0, int T1, int N, opus_val16 g0, opus_val16 g1, int tapset0, int tapset1, const opus_val16 *window, int overlap) { - int i; - /* printf ("%d %d %f %f\n", T0, T1, g0, g1); */ - opus_val16 g00, g01, g02, g10, g11, g12; - static const opus_val16 gains[3][3] = { - {QCONST16(0.3066406250f, 15), QCONST16(0.2170410156f, 15), QCONST16(0.1296386719f, 15)}, - {QCONST16(0.4638671875f, 15), QCONST16(0.2680664062f, 15), QCONST16(0.f, 15)}, - {QCONST16(0.7998046875f, 15), QCONST16(0.1000976562f, 15), QCONST16(0.f, 15)}}; - g00 = MULT16_16_Q15(g0, gains[tapset0][0]); - g01 = MULT16_16_Q15(g0, gains[tapset0][1]); - g02 = MULT16_16_Q15(g0, gains[tapset0][2]); - g10 = MULT16_16_Q15(g1, gains[tapset1][0]); - g11 = MULT16_16_Q15(g1, gains[tapset1][1]); - g12 = MULT16_16_Q15(g1, gains[tapset1][2]); - for (i=0;i<overlap;i++) + /* Multiply-adds are only needed if g0 or g1 or non-zero. In all other cases a simple + * copy of vector x to y is possible. */ + if (g0!=0 || g1!=0) { - opus_val16 f; - f = MULT16_16_Q15(window[i],window[i]); - y[i] = x[i] - + MULT16_32_Q15(MULT16_16_Q15((Q15ONE-f),g00),x[i-T0]) - + MULT16_32_Q15(MULT16_16_Q15((Q15ONE-f),g01),x[i-T0-1]) - + MULT16_32_Q15(MULT16_16_Q15((Q15ONE-f),g01),x[i-T0+1]) - + MULT16_32_Q15(MULT16_16_Q15((Q15ONE-f),g02),x[i-T0-2]) - + MULT16_32_Q15(MULT16_16_Q15((Q15ONE-f),g02),x[i-T0+2]) - + MULT16_32_Q15(MULT16_16_Q15(f,g10),x[i-T1]) - + MULT16_32_Q15(MULT16_16_Q15(f,g11),x[i-T1-1]) - + MULT16_32_Q15(MULT16_16_Q15(f,g11),x[i-T1+1]) - + MULT16_32_Q15(MULT16_16_Q15(f,g12),x[i-T1-2]) - + MULT16_32_Q15(MULT16_16_Q15(f,g12),x[i-T1+2]); - + int i; + opus_val16 g00, g01, g02, g10, g11, g12, idx0, idx1; + static const opus_val16 gains[3][3] = { + {QCONST16(0.3066406250f, 15), QCONST16(0.2170410156f, 15), QCONST16(0.1296386719f, 15)}, + {QCONST16(0.4638671875f, 15), QCONST16(0.2680664062f, 15), QCONST16(0.f, 15)}, + {QCONST16(0.7998046875f, 15), QCONST16(0.1000976562f, 15), QCONST16(0.f, 15)}}; + g00 = MULT16_16_Q15(g0, gains[tapset0][0]); + g01 = MULT16_16_Q15(g0, gains[tapset0][1]); + g02 = MULT16_16_Q15(g0, gains[tapset0][2]); + g10 = MULT16_16_Q15(g1, gains[tapset1][0]); + g11 = MULT16_16_Q15(g1, gains[tapset1][1]); + g12 = MULT16_16_Q15(g1, gains[tapset1][2]); + /* printf("g0 %d g1 %d\n", g0,g1); */ + idx0 = -T0; + idx1 = -T1; + for (i=0;i<overlap;i++,idx0++,idx1++) + { + opus_val16 f0, f1; + f1 = MULT16_16_Q15(window[i],window[i]); + f0 = Q15ONE - f1; + y[i] = x[i] + + MULT16_32_Q15(MULT16_16_Q15(f0,g00), x[idx0 ]) + + MULT16_32_Q15(MULT16_16_Q15(f0,g01),(x[idx0-1]+x[idx0+1])) + + MULT16_32_Q15(MULT16_16_Q15(f0,g02),(x[idx0-2]+x[idx0+2])) + + MULT16_32_Q15(MULT16_16_Q15(f1,g10), x[idx1 ]) + + MULT16_32_Q15(MULT16_16_Q15(f1,g11),(x[idx1-1]+x[idx1+1])) + + MULT16_32_Q15(MULT16_16_Q15(f1,g12),(x[idx1-2]+x[idx1+2])); + } + /* No multiply-add required if g1=0 as all multiplicants are =0. */ + if (g1!=0) + { + idx1 = overlap-T1; + for (i=overlap;i<N;i++,idx1++) + { + y[i] = x[i] + + MULT16_32_Q15(g10, x[idx1 ]) + + MULT16_32_Q15(g11,(x[idx1-1]+x[idx1+1])) + + MULT16_32_Q15(g12,(x[idx1-2]+x[idx1+2])); + } + } + /* Only perform vector copy if source and destination are not same. */ + else if (x != y) + { + /* Copy part of vector from x[overlap..N] to y[overlap..N] */ + memcpy(y+overlap, x+overlap, (N-overlap)*sizeof(opus_val32)); + } + } + /* Only perform vector copy if source and destination are not same. */ + else if (x != y) + { + /* Copy full vector from x[0..N] to y[0..N] */ + memcpy(y, x, (N)*sizeof(opus_val32)); } - for (i=overlap;i<N;i++) - y[i] = x[i] - + MULT16_32_Q15(g10,x[i-T1]) - + MULT16_32_Q15(g11,x[i-T1-1]) - + MULT16_32_Q15(g11,x[i-T1+1]) - + MULT16_32_Q15(g12,x[i-T1-2]) - + MULT16_32_Q15(g12,x[i-T1+2]); } static const signed char tf_select_table[4][8] = { @@ -2296,14 +2322,16 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, opus_val16 * OPUS_R RESTORE_STACK; } +static celt_sig freq[1920] IBSS_ATTR; /* 7680 byte */ +static celt_norm X[1920] IBSS_ATTR; /* 3840 byte */ int celt_decode_with_ec(CELTDecoder * OPUS_RESTRICT st, const unsigned char *data, int len, opus_val16 * OPUS_RESTRICT pcm, int frame_size, ec_dec *dec) { int c, i, N; int spread_decision; opus_int32 bits; ec_dec _dec; - VARDECL(celt_sig, freq); - VARDECL(celt_norm, X); +//AB VARDECL(celt_sig, freq); +//AB VARDECL(celt_norm, X); VARDECL(celt_ener, bandE); VARDECL(int, fine_quant); VARDECL(int, pulses); @@ -2398,8 +2426,9 @@ int celt_decode_with_ec(CELTDecoder * OPUS_RESTRICT st, const unsigned char *dat if (effEnd > st->mode->effEBands) effEnd = st->mode->effEBands; - ALLOC(freq, IMAX(CC,C)*N, celt_sig); /**< Interleaved signal MDCTs */ - ALLOC(X, C*N, celt_norm); /**< Interleaved normalised MDCTs */ +//AB ALLOC(freq, IMAX(CC,C)*N, celt_sig); /**< Interleaved signal MDCTs */ +//AB ALLOC(X, C*N, celt_norm); /**< Interleaved normalised MDCTs */ + ALLOC(bandE, st->mode->nbEBands*C, celt_ener); c=0; do for (i=0;i<M*st->mode->eBands[st->start];i++) diff --git a/lib/rbcodec/codecs/libopus/celt/fixed_generic.h b/lib/rbcodec/codecs/libopus/celt/fixed_generic.h index bc6820f..7e4f707 100644 --- a/lib/rbcodec/codecs/libopus/celt/fixed_generic.h +++ b/lib/rbcodec/codecs/libopus/celt/fixed_generic.h @@ -55,9 +55,9 @@ static inline int32_t MULT16_32_Q15(int32_t a, int32_t b) } #elif defined(CPU_ARM) -static inline int32_t MULT16_32_Q15(int32_t a, int32_t b) +static inline opus_val32 MULT16_32_Q15(opus_val32 a, opus_val32 b) { - int32_t lo, hi; + opus_val32 lo, hi; asm volatile("smull %[lo], %[hi], %[a], %[b] \n\t" "mov %[lo], %[lo], lsr #15 \n\t" "orr %[hi], %[lo], %[hi], lsl #17 \n\t" @@ -71,8 +71,21 @@ static inline int32_t MULT16_32_Q15(int32_t a, int32_t b) #define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_16SU((a),((b)&0x0000ffff)),15)) #endif +#if defined(CPU_ARM) +static inline opus_val32 MULT32_32_Q31(opus_val32 a, opus_val32 b) +{ + opus_val32 lo, hi; + asm volatile("smull %[lo], %[hi], %[a], %[b] \n\t" + "mov %[lo], %[lo], lsr #31 \n\t" + "orr %[hi], %[lo], %[hi], lsl #1 \n\t" + : [lo] "=&r" (lo), [hi] "=&r" (hi) + : [a] "r" (a), [b] "r" (b) ); + return(hi); +} +#else /** 32x32 multiplication, followed by a 31-bit shift right. Results fits in 32 bits */ -#define MULT32_32_Q31(a,b) ADD32(ADD32(SHL(MULT16_16(SHR((a),16),SHR((b),16)),1), SHR(MULT16_16SU(SHR((a),16),((b)&0x0000ffff)),15)), SHR(MULT16_16SU(SHR((b),16),((a)&0x0000ffff)),15)) +#define MULT32_32_Q31(a,b) (opus_val32)((((int64_t)(a)) * ((int64_t)(b)))>>31) +#endif /** Compile-time conversion of float constant to 16-bit value */ #define QCONST16(x,bits) ((opus_val16)(.5+(x)*(((opus_val32)1)<<(bits)))) diff --git a/lib/rbcodec/codecs/libopus/celt/kiss_fft.c b/lib/rbcodec/codecs/libopus/celt/kiss_fft.c index 01049d5..15dd76a 100644 --- a/lib/rbcodec/codecs/libopus/celt/kiss_fft.c +++ b/lib/rbcodec/codecs/libopus/celt/kiss_fft.c @@ -398,13 +398,12 @@ static void ki_bfly5( int i, u; kiss_fft_cpx scratch[13]; const kiss_twiddle_cpx * twiddles = st->twiddles; - const kiss_twiddle_cpx *tw; + const kiss_twiddle_cpx *tw1,*tw2, *tw3, *tw4; kiss_twiddle_cpx ya,yb; kiss_fft_cpx * Fout_beg = Fout; ya = twiddles[fstride*m]; yb = twiddles[fstride*2*m]; - tw=st->twiddles; for (i=0;i<N;i++) { @@ -414,14 +413,15 @@ static void ki_bfly5( Fout2=Fout0+2*m; Fout3=Fout0+3*m; Fout4=Fout0+4*m; - - for ( u=0; u<m; ++u ) { + tw1 = tw2 = tw3 = tw4 = st->twiddles; + + for ( u=0; u<m; ++u) { scratch[0] = *Fout0; - - C_MULC(scratch[1] ,*Fout1, tw[u*fstride]); - C_MULC(scratch[2] ,*Fout2, tw[2*u*fstride]); - C_MULC(scratch[3] ,*Fout3, tw[3*u*fstride]); - C_MULC(scratch[4] ,*Fout4, tw[4*u*fstride]); + + C_MULC(scratch[1] ,*Fout1, *tw1); + C_MULC(scratch[2] ,*Fout2, *tw2); + C_MULC(scratch[3] ,*Fout3, *tw3); + C_MULC(scratch[4] ,*Fout4, *tw4); C_ADD( scratch[7],scratch[1],scratch[4]); C_SUB( scratch[10],scratch[1],scratch[4]); @@ -449,6 +449,10 @@ static void ki_bfly5( C_SUB(*Fout3,scratch[11],scratch[12]); ++Fout0;++Fout1;++Fout2;++Fout3;++Fout4; + tw1 += fstride; + tw2 += 2*fstride; + tw3 += 3*fstride; + tw4 += 4*fstride; } } } diff --git a/lib/rbcodec/codecs/libopus/celt/mdct.c b/lib/rbcodec/codecs/libopus/celt/mdct.c index 15d2393..b3e0d28 100644 --- a/lib/rbcodec/codecs/libopus/celt/mdct.c +++ b/lib/rbcodec/codecs/libopus/celt/mdct.c @@ -208,6 +208,8 @@ void clt_mdct_forward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scalar } #endif +//AB static kiss_fft_scalar f[1920>>1] IBSS_ATTR; +static kiss_fft_scalar f2[1920>>1] IBSS_ATTR; void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scalar * OPUS_RESTRICT out, const opus_val16 * OPUS_RESTRICT window, int overlap, int shift, int stride) { @@ -215,7 +217,7 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala int N, N2, N4; kiss_twiddle_scalar sine; /* VARDECL(kiss_fft_scalar, f); */ - VARDECL(kiss_fft_scalar, f2); +//AB VARDECL(kiss_fft_scalar, f2); SAVE_STACK; N = l->n; /* static modes => N = 1920 */ N >>= shift; @@ -223,7 +225,7 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala N4 = N>>2; /* ALLOC(f, N2, kiss_fft_scalar); */ kiss_fft_scalar f[N2]; /* worst case 3840b */ - ALLOC(f2, N2, kiss_fft_scalar); +//AB ALLOC(f2, N2, kiss_fft_scalar); /* sin(x) ~= x here */ #ifdef FIXED_POINT sine = TRIG_UPSCALE*(QCONST16(0.7853981f, 15)+N2)/N; @@ -241,8 +243,11 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala for(i=0;i<N4;i++) { kiss_fft_scalar yr, yi; - yr = -S_MUL(*xp2, t[i<<shift]) + S_MUL(*xp1,t[(N4-i)<<shift]); - yi = -S_MUL(*xp2, t[(N4-i)<<shift]) - S_MUL(*xp1,t[i<<shift]); + int idx0, idx1; + idx0 = i<<shift; + idx1 = (N4-i)<<shift; + yr = -S_MUL(*xp2, t[idx0]) + S_MUL(*xp1,t[idx1]); + yi = -S_MUL(*xp2, t[idx1]) - S_MUL(*xp1,t[idx0]); /* works because the cos is nearly one */ *yp++ = yr - S_MUL(yi,sine); *yp++ = yi + S_MUL(yr,sine); @@ -262,11 +267,14 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala for(i=0;i<N4;i++) { kiss_fft_scalar re, im, yr, yi; + int idx0, idx1; + idx0 = i<<shift; + idx1 = (N4-i)<<shift; re = fp[0]; im = fp[1]; /* We'd scale up by 2 here, but instead it's done when mixing the windows */ - yr = S_MUL(re,t[i<<shift]) - S_MUL(im,t[(N4-i)<<shift]); - yi = S_MUL(im,t[i<<shift]) + S_MUL(re,t[(N4-i)<<shift]); + yr = S_MUL(re,t[idx0]) - S_MUL(im,t[idx1]); + yi = S_MUL(im,t[idx0]) + S_MUL(re,t[idx1]); /* works because the cos is nearly one */ *fp++ = yr - S_MUL(yi,sine); *fp++ = yi + S_MUL(yr,sine); diff --git a/lib/rbcodec/codecs/libopus/opus_decoder.c b/lib/rbcodec/codecs/libopus/opus_decoder.c index 7103b18..d7e3a66 100644 --- a/lib/rbcodec/codecs/libopus/opus_decoder.c +++ b/lib/rbcodec/codecs/libopus/opus_decoder.c @@ -131,6 +131,7 @@ int opus_decoder_init(OpusDecoder *st, opus_int32 Fs, int channels) return OPUS_OK; } +static char sDec[26468] IBSS_ATTR; OpusDecoder *opus_decoder_create(opus_int32 Fs, int channels, int *error) { int ret; @@ -142,7 +143,8 @@ OpusDecoder *opus_decoder_create(opus_int32 Fs, int channels, int *error) *error = OPUS_BAD_ARG; return NULL; } - st = (OpusDecoder *)opus_alloc(opus_decoder_get_size(channels)); + st = (OpusDecoder *)sDec; +//AB st = (OpusDecoder *)opus_alloc(opus_decoder_get_size(channels)); if (st == NULL) { if (error) |
